|  | /* | 
|  | * Copyright (c) 2012, 2013, NVIDIA CORPORATION.  All rights reserved. | 
|  | * | 
|  | * This program is free software; you can redistribute it and/or modify it | 
|  | * under the terms and conditions of the GNU General Public License, | 
|  | * version 2, as published by the Free Software Foundation. | 
|  | * | 
|  | * This program is distributed in the hope it will be useful, but WITHOUT | 
|  | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | 
|  | * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for | 
|  | * more details. | 
|  | * | 
|  | * You should have received a copy of the GNU General Public License | 
|  | * along with this program.  If not, see <http://www.gnu.org/licenses/>. | 
|  | */ | 
|  |  | 
|  | #include <linux/slab.h> | 
|  | #include <linux/io.h> | 
|  | #include <linux/delay.h> | 
|  | #include <linux/err.h> | 
|  | #include <linux/clk.h> | 
|  | #include <linux/clk-provider.h> | 
|  |  | 
|  | #include "clk.h" | 
|  |  | 
|  | #define PLL_BASE_BYPASS BIT(31) | 
|  | #define PLL_BASE_ENABLE BIT(30) | 
|  | #define PLL_BASE_REF_ENABLE BIT(29) | 
|  | #define PLL_BASE_OVERRIDE BIT(28) | 
|  |  | 
|  | #define PLL_BASE_DIVP_SHIFT 20 | 
|  | #define PLL_BASE_DIVP_WIDTH 3 | 
|  | #define PLL_BASE_DIVN_SHIFT 8 | 
|  | #define PLL_BASE_DIVN_WIDTH 10 | 
|  | #define PLL_BASE_DIVM_SHIFT 0 | 
|  | #define PLL_BASE_DIVM_WIDTH 5 | 
|  | #define PLLU_POST_DIVP_MASK 0x1 | 
|  |  | 
|  | #define PLL_MISC_DCCON_SHIFT 20 | 
|  | #define PLL_MISC_CPCON_SHIFT 8 | 
|  | #define PLL_MISC_CPCON_WIDTH 4 | 
|  | #define PLL_MISC_CPCON_MASK ((1 << PLL_MISC_CPCON_WIDTH) - 1) | 
|  | #define PLL_MISC_LFCON_SHIFT 4 | 
|  | #define PLL_MISC_LFCON_WIDTH 4 | 
|  | #define PLL_MISC_LFCON_MASK ((1 << PLL_MISC_LFCON_WIDTH) - 1) | 
|  | #define PLL_MISC_VCOCON_SHIFT 0 | 
|  | #define PLL_MISC_VCOCON_WIDTH 4 | 
|  | #define PLL_MISC_VCOCON_MASK ((1 << PLL_MISC_VCOCON_WIDTH) - 1) | 
|  |  | 
|  | #define OUT_OF_TABLE_CPCON 8 | 
|  |  | 
|  | #define PMC_PLLP_WB0_OVERRIDE 0xf8 | 
|  | #define PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE BIT(12) | 
|  | #define PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE BIT(11) | 
|  |  | 
|  | #define PLL_POST_LOCK_DELAY 50 | 
|  |  | 
|  | #define PLLDU_LFCON_SET_DIVN 600 | 
|  |  | 
|  | #define PLLE_BASE_DIVCML_SHIFT 24 | 
|  | #define PLLE_BASE_DIVCML_MASK 0xf | 
|  | #define PLLE_BASE_DIVP_SHIFT 16 | 
|  | #define PLLE_BASE_DIVP_WIDTH 6 | 
|  | #define PLLE_BASE_DIVN_SHIFT 8 | 
|  | #define PLLE_BASE_DIVN_WIDTH 8 | 
|  | #define PLLE_BASE_DIVM_SHIFT 0 | 
|  | #define PLLE_BASE_DIVM_WIDTH 8 | 
|  | #define PLLE_BASE_ENABLE BIT(31) | 
|  |  | 
|  | #define PLLE_MISC_SETUP_BASE_SHIFT 16 | 
|  | #define PLLE_MISC_SETUP_BASE_MASK (0xffff << PLLE_MISC_SETUP_BASE_SHIFT) | 
|  | #define PLLE_MISC_LOCK_ENABLE BIT(9) | 
|  | #define PLLE_MISC_READY BIT(15) | 
|  | #define PLLE_MISC_SETUP_EX_SHIFT 2 | 
|  | #define PLLE_MISC_SETUP_EX_MASK (3 << PLLE_MISC_SETUP_EX_SHIFT) | 
|  | #define PLLE_MISC_SETUP_MASK (PLLE_MISC_SETUP_BASE_MASK |	\ | 
|  | PLLE_MISC_SETUP_EX_MASK) | 
|  | #define PLLE_MISC_SETUP_VALUE (7 << PLLE_MISC_SETUP_BASE_SHIFT) | 
|  |  | 
|  | #define PLLE_SS_CTRL 0x68 | 
|  | #define PLLE_SS_CNTL_BYPASS_SS BIT(10) | 
|  | #define PLLE_SS_CNTL_INTERP_RESET BIT(11) | 
|  | #define PLLE_SS_CNTL_SSC_BYP BIT(12) | 
|  | #define PLLE_SS_CNTL_CENTER BIT(14) | 
|  | #define PLLE_SS_CNTL_INVERT BIT(15) | 
|  | #define PLLE_SS_DISABLE (PLLE_SS_CNTL_BYPASS_SS | PLLE_SS_CNTL_INTERP_RESET |\ | 
|  | PLLE_SS_CNTL_SSC_BYP) | 
|  | #define PLLE_SS_MAX_MASK 0x1ff | 
|  | #define PLLE_SS_MAX_VAL_TEGRA114 0x25 | 
|  | #define PLLE_SS_MAX_VAL_TEGRA210 0x21 | 
|  | #define PLLE_SS_INC_MASK (0xff << 16) | 
|  | #define PLLE_SS_INC_VAL (0x1 << 16) | 
|  | #define PLLE_SS_INCINTRV_MASK (0x3f << 24) | 
|  | #define PLLE_SS_INCINTRV_VAL_TEGRA114 (0x20 << 24) | 
|  | #define PLLE_SS_INCINTRV_VAL_TEGRA210 (0x23 << 24) | 
|  | #define PLLE_SS_COEFFICIENTS_MASK \ | 
|  | (PLLE_SS_MAX_MASK | PLLE_SS_INC_MASK | PLLE_SS_INCINTRV_MASK) | 
|  | #define PLLE_SS_COEFFICIENTS_VAL_TEGRA114 \ | 
|  | (PLLE_SS_MAX_VAL_TEGRA114 | PLLE_SS_INC_VAL |\ | 
|  | PLLE_SS_INCINTRV_VAL_TEGRA114) | 
|  | #define PLLE_SS_COEFFICIENTS_VAL_TEGRA210 \ | 
|  | (PLLE_SS_MAX_VAL_TEGRA210 | PLLE_SS_INC_VAL |\ | 
|  | PLLE_SS_INCINTRV_VAL_TEGRA210) | 
|  |  | 
|  | #define PLLE_AUX_PLLP_SEL	BIT(2) | 
|  | #define PLLE_AUX_USE_LOCKDET	BIT(3) | 
|  | #define PLLE_AUX_ENABLE_SWCTL	BIT(4) | 
|  | #define PLLE_AUX_SS_SWCTL	BIT(6) | 
|  | #define PLLE_AUX_SEQ_ENABLE	BIT(24) | 
|  | #define PLLE_AUX_SEQ_START_STATE BIT(25) | 
|  | #define PLLE_AUX_PLLRE_SEL	BIT(28) | 
|  | #define PLLE_AUX_SS_SEQ_INCLUDE	BIT(31) | 
|  |  | 
|  | #define XUSBIO_PLL_CFG0		0x51c | 
|  | #define XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL	BIT(0) | 
|  | #define XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL	BIT(2) | 
|  | #define XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET	BIT(6) | 
|  | #define XUSBIO_PLL_CFG0_SEQ_ENABLE		BIT(24) | 
|  | #define XUSBIO_PLL_CFG0_SEQ_START_STATE		BIT(25) | 
|  |  | 
|  | #define SATA_PLL_CFG0		0x490 | 
|  | #define SATA_PLL_CFG0_PADPLL_RESET_SWCTL	BIT(0) | 
|  | #define SATA_PLL_CFG0_PADPLL_USE_LOCKDET	BIT(2) | 
|  | #define SATA_PLL_CFG0_SEQ_ENABLE		BIT(24) | 
|  | #define SATA_PLL_CFG0_SEQ_START_STATE		BIT(25) | 
|  |  | 
|  | #define PLLE_MISC_PLLE_PTS	BIT(8) | 
|  | #define PLLE_MISC_IDDQ_SW_VALUE	BIT(13) | 
|  | #define PLLE_MISC_IDDQ_SW_CTRL	BIT(14) | 
|  | #define PLLE_MISC_VREG_BG_CTRL_SHIFT	4 | 
|  | #define PLLE_MISC_VREG_BG_CTRL_MASK	(3 << PLLE_MISC_VREG_BG_CTRL_SHIFT) | 
|  | #define PLLE_MISC_VREG_CTRL_SHIFT	2 | 
|  | #define PLLE_MISC_VREG_CTRL_MASK	(2 << PLLE_MISC_VREG_CTRL_SHIFT) | 
|  |  | 
|  | #define PLLCX_MISC_STROBE	BIT(31) | 
|  | #define PLLCX_MISC_RESET	BIT(30) | 
|  | #define PLLCX_MISC_SDM_DIV_SHIFT 28 | 
|  | #define PLLCX_MISC_SDM_DIV_MASK (0x3 << PLLCX_MISC_SDM_DIV_SHIFT) | 
|  | #define PLLCX_MISC_FILT_DIV_SHIFT 26 | 
|  | #define PLLCX_MISC_FILT_DIV_MASK (0x3 << PLLCX_MISC_FILT_DIV_SHIFT) | 
|  | #define PLLCX_MISC_ALPHA_SHIFT 18 | 
|  | #define PLLCX_MISC_DIV_LOW_RANGE \ | 
|  | ((0x1 << PLLCX_MISC_SDM_DIV_SHIFT) | \ | 
|  | (0x1 << PLLCX_MISC_FILT_DIV_SHIFT)) | 
|  | #define PLLCX_MISC_DIV_HIGH_RANGE \ | 
|  | ((0x2 << PLLCX_MISC_SDM_DIV_SHIFT) | \ | 
|  | (0x2 << PLLCX_MISC_FILT_DIV_SHIFT)) | 
|  | #define PLLCX_MISC_COEF_LOW_RANGE \ | 
|  | ((0x14 << PLLCX_MISC_KA_SHIFT) | (0x38 << PLLCX_MISC_KB_SHIFT)) | 
|  | #define PLLCX_MISC_KA_SHIFT 2 | 
|  | #define PLLCX_MISC_KB_SHIFT 9 | 
|  | #define PLLCX_MISC_DEFAULT (PLLCX_MISC_COEF_LOW_RANGE | \ | 
|  | (0x19 << PLLCX_MISC_ALPHA_SHIFT) | \ | 
|  | PLLCX_MISC_DIV_LOW_RANGE | \ | 
|  | PLLCX_MISC_RESET) | 
|  | #define PLLCX_MISC1_DEFAULT 0x000d2308 | 
|  | #define PLLCX_MISC2_DEFAULT 0x30211200 | 
|  | #define PLLCX_MISC3_DEFAULT 0x200 | 
|  |  | 
|  | #define PMC_SATA_PWRGT 0x1ac | 
|  | #define PMC_SATA_PWRGT_PLLE_IDDQ_VALUE BIT(5) | 
|  | #define PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL BIT(4) | 
|  |  | 
|  | #define PLLSS_MISC_KCP		0 | 
|  | #define PLLSS_MISC_KVCO		0 | 
|  | #define PLLSS_MISC_SETUP	0 | 
|  | #define PLLSS_EN_SDM		0 | 
|  | #define PLLSS_EN_SSC		0 | 
|  | #define PLLSS_EN_DITHER2	0 | 
|  | #define PLLSS_EN_DITHER		1 | 
|  | #define PLLSS_SDM_RESET		0 | 
|  | #define PLLSS_CLAMP		0 | 
|  | #define PLLSS_SDM_SSC_MAX	0 | 
|  | #define PLLSS_SDM_SSC_MIN	0 | 
|  | #define PLLSS_SDM_SSC_STEP	0 | 
|  | #define PLLSS_SDM_DIN		0 | 
|  | #define PLLSS_MISC_DEFAULT ((PLLSS_MISC_KCP << 25) | \ | 
|  | (PLLSS_MISC_KVCO << 24) | \ | 
|  | PLLSS_MISC_SETUP) | 
|  | #define PLLSS_CFG_DEFAULT ((PLLSS_EN_SDM << 31) | \ | 
|  | (PLLSS_EN_SSC << 30) | \ | 
|  | (PLLSS_EN_DITHER2 << 29) | \ | 
|  | (PLLSS_EN_DITHER << 28) | \ | 
|  | (PLLSS_SDM_RESET) << 27 | \ | 
|  | (PLLSS_CLAMP << 22)) | 
|  | #define PLLSS_CTRL1_DEFAULT \ | 
|  | ((PLLSS_SDM_SSC_MAX << 16) | PLLSS_SDM_SSC_MIN) | 
|  | #define PLLSS_CTRL2_DEFAULT \ | 
|  | ((PLLSS_SDM_SSC_STEP << 16) | PLLSS_SDM_DIN) | 
|  | #define PLLSS_LOCK_OVERRIDE	BIT(24) | 
|  | #define PLLSS_REF_SRC_SEL_SHIFT	25 | 
|  | #define PLLSS_REF_SRC_SEL_MASK	(3 << PLLSS_REF_SRC_SEL_SHIFT) | 
|  |  | 
|  | #define UTMIP_PLL_CFG1 0x484 | 
|  | #define UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(x) (((x) & 0xfff) << 0) | 
|  | #define UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(x) (((x) & 0x1f) << 27) | 
|  | #define UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN BIT(12) | 
|  | #define UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN BIT(14) | 
|  | #define UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERUP BIT(15) | 
|  | #define UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN BIT(16) | 
|  | #define UTMIP_PLL_CFG1_FORCE_PLLU_POWERUP BIT(17) | 
|  |  | 
|  | #define UTMIP_PLL_CFG2 0x488 | 
|  | #define UTMIP_PLL_CFG2_STABLE_COUNT(x) (((x) & 0xfff) << 6) | 
|  | #define UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(x) (((x) & 0x3f) << 18) | 
|  | #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN BIT(0) | 
|  | #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERUP BIT(1) | 
|  | #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN BIT(2) | 
|  | #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERUP BIT(3) | 
|  | #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN BIT(4) | 
|  | #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERUP BIT(5) | 
|  | #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_D_POWERDOWN BIT(24) | 
|  | #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_D_POWERUP BIT(25) | 
|  | #define UTMIP_PLL_CFG2_PHY_XTAL_CLOCKEN BIT(30) | 
|  |  | 
|  | #define UTMIPLL_HW_PWRDN_CFG0 0x52c | 
|  | #define UTMIPLL_HW_PWRDN_CFG0_IDDQ_SWCTL BIT(0) | 
|  | #define UTMIPLL_HW_PWRDN_CFG0_IDDQ_OVERRIDE BIT(1) | 
|  | #define UTMIPLL_HW_PWRDN_CFG0_CLK_ENABLE_SWCTL BIT(2) | 
|  | #define UTMIPLL_HW_PWRDN_CFG0_SEQ_IN_SWCTL BIT(4) | 
|  | #define UTMIPLL_HW_PWRDN_CFG0_SEQ_RESET_INPUT_VALUE BIT(5) | 
|  | #define UTMIPLL_HW_PWRDN_CFG0_USE_LOCKDET BIT(6) | 
|  | #define UTMIPLL_HW_PWRDN_CFG0_SEQ_ENABLE BIT(24) | 
|  | #define UTMIPLL_HW_PWRDN_CFG0_SEQ_START_STATE BIT(25) | 
|  |  | 
|  | #define PLLU_HW_PWRDN_CFG0 0x530 | 
|  | #define PLLU_HW_PWRDN_CFG0_CLK_SWITCH_SWCTL BIT(0) | 
|  | #define PLLU_HW_PWRDN_CFG0_CLK_ENABLE_SWCTL BIT(2) | 
|  | #define PLLU_HW_PWRDN_CFG0_USE_LOCKDET BIT(6) | 
|  | #define PLLU_HW_PWRDN_CFG0_USE_SWITCH_DETECT BIT(7) | 
|  | #define PLLU_HW_PWRDN_CFG0_SEQ_ENABLE BIT(24) | 
|  | #define PLLU_HW_PWRDN_CFG0_IDDQ_PD_INCLUDE BIT(28) | 
|  |  | 
|  | #define XUSB_PLL_CFG0 0x534 | 
|  | #define XUSB_PLL_CFG0_UTMIPLL_LOCK_DLY 0x3ff | 
|  | #define XUSB_PLL_CFG0_PLLU_LOCK_DLY (0x3ff << 14) | 
|  |  | 
|  | #define PLLU_BASE_CLKENABLE_USB BIT(21) | 
|  | #define PLLU_BASE_OVERRIDE BIT(24) | 
|  |  | 
|  | #define pll_readl(offset, p) readl_relaxed(p->clk_base + offset) | 
|  | #define pll_readl_base(p) pll_readl(p->params->base_reg, p) | 
|  | #define pll_readl_misc(p) pll_readl(p->params->misc_reg, p) | 
|  | #define pll_override_readl(offset, p) readl_relaxed(p->pmc + offset) | 
|  | #define pll_readl_sdm_din(p) pll_readl(p->params->sdm_din_reg, p) | 
|  | #define pll_readl_sdm_ctrl(p) pll_readl(p->params->sdm_ctrl_reg, p) | 
|  |  | 
|  | #define pll_writel(val, offset, p) writel_relaxed(val, p->clk_base + offset) | 
|  | #define pll_writel_base(val, p) pll_writel(val, p->params->base_reg, p) | 
|  | #define pll_writel_misc(val, p) pll_writel(val, p->params->misc_reg, p) | 
|  | #define pll_override_writel(val, offset, p) writel(val, p->pmc + offset) | 
|  | #define pll_writel_sdm_din(val, p) pll_writel(val, p->params->sdm_din_reg, p) | 
|  | #define pll_writel_sdm_ctrl(val, p) pll_writel(val, p->params->sdm_ctrl_reg, p) | 
|  |  | 
|  | #define mask(w) ((1 << (w)) - 1) | 
|  | #define divm_mask(p) mask(p->params->div_nmp->divm_width) | 
|  | #define divn_mask(p) mask(p->params->div_nmp->divn_width) | 
|  | #define divp_mask(p) (p->params->flags & TEGRA_PLLU ? PLLU_POST_DIVP_MASK :\ | 
|  | mask(p->params->div_nmp->divp_width)) | 
|  | #define sdm_din_mask(p) p->params->sdm_din_mask | 
|  | #define sdm_en_mask(p) p->params->sdm_ctrl_en_mask | 
|  |  | 
|  | #define divm_shift(p) (p)->params->div_nmp->divm_shift | 
|  | #define divn_shift(p) (p)->params->div_nmp->divn_shift | 
|  | #define divp_shift(p) (p)->params->div_nmp->divp_shift | 
|  |  | 
|  | #define divm_mask_shifted(p) (divm_mask(p) << divm_shift(p)) | 
|  | #define divn_mask_shifted(p) (divn_mask(p) << divn_shift(p)) | 
|  | #define divp_mask_shifted(p) (divp_mask(p) << divp_shift(p)) | 
|  |  | 
|  | #define divm_max(p) (divm_mask(p)) | 
|  | #define divn_max(p) (divn_mask(p)) | 
|  | #define divp_max(p) (1 << (divp_mask(p))) | 
|  |  | 
|  | #define sdin_din_to_data(din)	((u16)((din) ? : 0xFFFFU)) | 
|  | #define sdin_data_to_din(dat)	(((dat) == 0xFFFFU) ? 0 : (s16)dat) | 
|  |  | 
|  | static struct div_nmp default_nmp = { | 
|  | .divn_shift = PLL_BASE_DIVN_SHIFT, | 
|  | .divn_width = PLL_BASE_DIVN_WIDTH, | 
|  | .divm_shift = PLL_BASE_DIVM_SHIFT, | 
|  | .divm_width = PLL_BASE_DIVM_WIDTH, | 
|  | .divp_shift = PLL_BASE_DIVP_SHIFT, | 
|  | .divp_width = PLL_BASE_DIVP_WIDTH, | 
|  | }; | 
|  |  | 
|  | static void clk_pll_enable_lock(struct tegra_clk_pll *pll) | 
|  | { | 
|  | u32 val; | 
|  |  | 
|  | if (!(pll->params->flags & TEGRA_PLL_USE_LOCK)) | 
|  | return; | 
|  |  | 
|  | if (!(pll->params->flags & TEGRA_PLL_HAS_LOCK_ENABLE)) | 
|  | return; | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val |= BIT(pll->params->lock_enable_bit_idx); | 
|  | pll_writel_misc(val, pll); | 
|  | } | 
|  |  | 
|  | static int clk_pll_wait_for_lock(struct tegra_clk_pll *pll) | 
|  | { | 
|  | int i; | 
|  | u32 val, lock_mask; | 
|  | void __iomem *lock_addr; | 
|  |  | 
|  | if (!(pll->params->flags & TEGRA_PLL_USE_LOCK)) { | 
|  | udelay(pll->params->lock_delay); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | lock_addr = pll->clk_base; | 
|  | if (pll->params->flags & TEGRA_PLL_LOCK_MISC) | 
|  | lock_addr += pll->params->misc_reg; | 
|  | else | 
|  | lock_addr += pll->params->base_reg; | 
|  |  | 
|  | lock_mask = pll->params->lock_mask; | 
|  |  | 
|  | for (i = 0; i < pll->params->lock_delay; i++) { | 
|  | val = readl_relaxed(lock_addr); | 
|  | if ((val & lock_mask) == lock_mask) { | 
|  | udelay(PLL_POST_LOCK_DELAY); | 
|  | return 0; | 
|  | } | 
|  | udelay(2); /* timeout = 2 * lock time */ | 
|  | } | 
|  |  | 
|  | pr_err("%s: Timed out waiting for pll %s lock\n", __func__, | 
|  | clk_hw_get_name(&pll->hw)); | 
|  |  | 
|  | return -1; | 
|  | } | 
|  |  | 
|  | int tegra_pll_wait_for_lock(struct tegra_clk_pll *pll) | 
|  | { | 
|  | return clk_pll_wait_for_lock(pll); | 
|  | } | 
|  |  | 
|  | static int clk_pll_is_enabled(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | u32 val; | 
|  |  | 
|  | if (pll->params->flags & TEGRA_PLLM) { | 
|  | val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE); | 
|  | if (val & PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE) | 
|  | return val & PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE ? 1 : 0; | 
|  | } | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  |  | 
|  | return val & PLL_BASE_ENABLE ? 1 : 0; | 
|  | } | 
|  |  | 
|  | static void _clk_pll_enable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | u32 val; | 
|  |  | 
|  | if (pll->params->iddq_reg) { | 
|  | val = pll_readl(pll->params->iddq_reg, pll); | 
|  | val &= ~BIT(pll->params->iddq_bit_idx); | 
|  | pll_writel(val, pll->params->iddq_reg, pll); | 
|  | udelay(5); | 
|  | } | 
|  |  | 
|  | if (pll->params->reset_reg) { | 
|  | val = pll_readl(pll->params->reset_reg, pll); | 
|  | val &= ~BIT(pll->params->reset_bit_idx); | 
|  | pll_writel(val, pll->params->reset_reg, pll); | 
|  | } | 
|  |  | 
|  | clk_pll_enable_lock(pll); | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | if (pll->params->flags & TEGRA_PLL_BYPASS) | 
|  | val &= ~PLL_BASE_BYPASS; | 
|  | val |= PLL_BASE_ENABLE; | 
|  | pll_writel_base(val, pll); | 
|  |  | 
|  | if (pll->params->flags & TEGRA_PLLM) { | 
|  | val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE); | 
|  | val |= PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE; | 
|  | writel_relaxed(val, pll->pmc + PMC_PLLP_WB0_OVERRIDE); | 
|  | } | 
|  | } | 
|  |  | 
|  | static void _clk_pll_disable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | u32 val; | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | if (pll->params->flags & TEGRA_PLL_BYPASS) | 
|  | val &= ~PLL_BASE_BYPASS; | 
|  | val &= ~PLL_BASE_ENABLE; | 
|  | pll_writel_base(val, pll); | 
|  |  | 
|  | if (pll->params->flags & TEGRA_PLLM) { | 
|  | val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE); | 
|  | val &= ~PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE; | 
|  | writel_relaxed(val, pll->pmc + PMC_PLLP_WB0_OVERRIDE); | 
|  | } | 
|  |  | 
|  | if (pll->params->reset_reg) { | 
|  | val = pll_readl(pll->params->reset_reg, pll); | 
|  | val |= BIT(pll->params->reset_bit_idx); | 
|  | pll_writel(val, pll->params->reset_reg, pll); | 
|  | } | 
|  |  | 
|  | if (pll->params->iddq_reg) { | 
|  | val = pll_readl(pll->params->iddq_reg, pll); | 
|  | val |= BIT(pll->params->iddq_bit_idx); | 
|  | pll_writel(val, pll->params->iddq_reg, pll); | 
|  | udelay(2); | 
|  | } | 
|  | } | 
|  |  | 
|  | static void pll_clk_start_ss(struct tegra_clk_pll *pll) | 
|  | { | 
|  | if (pll->params->defaults_set && pll->params->ssc_ctrl_reg) { | 
|  | u32 val = pll_readl(pll->params->ssc_ctrl_reg, pll); | 
|  |  | 
|  | val |= pll->params->ssc_ctrl_en_mask; | 
|  | pll_writel(val, pll->params->ssc_ctrl_reg, pll); | 
|  | } | 
|  | } | 
|  |  | 
|  | static void pll_clk_stop_ss(struct tegra_clk_pll *pll) | 
|  | { | 
|  | if (pll->params->defaults_set && pll->params->ssc_ctrl_reg) { | 
|  | u32 val = pll_readl(pll->params->ssc_ctrl_reg, pll); | 
|  |  | 
|  | val &= ~pll->params->ssc_ctrl_en_mask; | 
|  | pll_writel(val, pll->params->ssc_ctrl_reg, pll); | 
|  | } | 
|  | } | 
|  |  | 
|  | static int clk_pll_enable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | unsigned long flags = 0; | 
|  | int ret; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | _clk_pll_enable(hw); | 
|  |  | 
|  | ret = clk_pll_wait_for_lock(pll); | 
|  |  | 
|  | pll_clk_start_ss(pll); | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static void clk_pll_disable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | unsigned long flags = 0; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | pll_clk_stop_ss(pll); | 
|  |  | 
|  | _clk_pll_disable(hw); | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  | } | 
|  |  | 
|  | static int _p_div_to_hw(struct clk_hw *hw, u8 p_div) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | const struct pdiv_map *p_tohw = pll->params->pdiv_tohw; | 
|  |  | 
|  | if (p_tohw) { | 
|  | while (p_tohw->pdiv) { | 
|  | if (p_div <= p_tohw->pdiv) | 
|  | return p_tohw->hw_val; | 
|  | p_tohw++; | 
|  | } | 
|  | return -EINVAL; | 
|  | } | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | int tegra_pll_p_div_to_hw(struct tegra_clk_pll *pll, u8 p_div) | 
|  | { | 
|  | return _p_div_to_hw(&pll->hw, p_div); | 
|  | } | 
|  |  | 
|  | static int _hw_to_p_div(struct clk_hw *hw, u8 p_div_hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | const struct pdiv_map *p_tohw = pll->params->pdiv_tohw; | 
|  |  | 
|  | if (p_tohw) { | 
|  | while (p_tohw->pdiv) { | 
|  | if (p_div_hw == p_tohw->hw_val) | 
|  | return p_tohw->pdiv; | 
|  | p_tohw++; | 
|  | } | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | return 1 << p_div_hw; | 
|  | } | 
|  |  | 
|  | static int _get_table_rate(struct clk_hw *hw, | 
|  | struct tegra_clk_pll_freq_table *cfg, | 
|  | unsigned long rate, unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | struct tegra_clk_pll_freq_table *sel; | 
|  | int p; | 
|  |  | 
|  | for (sel = pll->params->freq_table; sel->input_rate != 0; sel++) | 
|  | if (sel->input_rate == parent_rate && | 
|  | sel->output_rate == rate) | 
|  | break; | 
|  |  | 
|  | if (sel->input_rate == 0) | 
|  | return -EINVAL; | 
|  |  | 
|  | if (pll->params->pdiv_tohw) { | 
|  | p = _p_div_to_hw(hw, sel->p); | 
|  | if (p < 0) | 
|  | return p; | 
|  | } else { | 
|  | p = ilog2(sel->p); | 
|  | } | 
|  |  | 
|  | cfg->input_rate = sel->input_rate; | 
|  | cfg->output_rate = sel->output_rate; | 
|  | cfg->m = sel->m; | 
|  | cfg->n = sel->n; | 
|  | cfg->p = p; | 
|  | cfg->cpcon = sel->cpcon; | 
|  | cfg->sdm_data = sel->sdm_data; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static int _calc_rate(struct clk_hw *hw, struct tegra_clk_pll_freq_table *cfg, | 
|  | unsigned long rate, unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | unsigned long cfreq; | 
|  | u32 p_div = 0; | 
|  | int ret; | 
|  |  | 
|  | switch (parent_rate) { | 
|  | case 12000000: | 
|  | case 26000000: | 
|  | cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2000000; | 
|  | break; | 
|  | case 13000000: | 
|  | cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2600000; | 
|  | break; | 
|  | case 16800000: | 
|  | case 19200000: | 
|  | cfreq = (rate <= 1200000 * 1000) ? 1200000 : 2400000; | 
|  | break; | 
|  | case 9600000: | 
|  | case 28800000: | 
|  | /* | 
|  | * PLL_P_OUT1 rate is not listed in PLLA table | 
|  | */ | 
|  | cfreq = parent_rate / (parent_rate / 1000000); | 
|  | break; | 
|  | default: | 
|  | pr_err("%s Unexpected reference rate %lu\n", | 
|  | __func__, parent_rate); | 
|  | BUG(); | 
|  | } | 
|  |  | 
|  | /* Raise VCO to guarantee 0.5% accuracy */ | 
|  | for (cfg->output_rate = rate; cfg->output_rate < 200 * cfreq; | 
|  | cfg->output_rate <<= 1) | 
|  | p_div++; | 
|  |  | 
|  | cfg->m = parent_rate / cfreq; | 
|  | cfg->n = cfg->output_rate / cfreq; | 
|  | cfg->cpcon = OUT_OF_TABLE_CPCON; | 
|  |  | 
|  | if (cfg->m > divm_max(pll) || cfg->n > divn_max(pll) || | 
|  | (1 << p_div) > divp_max(pll) | 
|  | || cfg->output_rate > pll->params->vco_max) { | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | cfg->output_rate >>= p_div; | 
|  |  | 
|  | if (pll->params->pdiv_tohw) { | 
|  | ret = _p_div_to_hw(hw, 1 << p_div); | 
|  | if (ret < 0) | 
|  | return ret; | 
|  | else | 
|  | cfg->p = ret; | 
|  | } else | 
|  | cfg->p = p_div; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * SDM (Sigma Delta Modulator) divisor is 16-bit 2's complement signed number | 
|  | * within (-2^12 ... 2^12-1) range. Represented in PLL data structure as | 
|  | * unsigned 16-bit value, with "0" divisor mapped to 0xFFFF. Data "0" is used | 
|  | * to indicate that SDM is disabled. | 
|  | * | 
|  | * Effective ndiv value when SDM is enabled: ndiv + 1/2 + sdm_din/2^13 | 
|  | */ | 
|  | static void clk_pll_set_sdm_data(struct clk_hw *hw, | 
|  | struct tegra_clk_pll_freq_table *cfg) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | u32 val; | 
|  | bool enabled; | 
|  |  | 
|  | if (!pll->params->sdm_din_reg) | 
|  | return; | 
|  |  | 
|  | if (cfg->sdm_data) { | 
|  | val = pll_readl_sdm_din(pll) & (~sdm_din_mask(pll)); | 
|  | val |= sdin_data_to_din(cfg->sdm_data) & sdm_din_mask(pll); | 
|  | pll_writel_sdm_din(val, pll); | 
|  | } | 
|  |  | 
|  | val = pll_readl_sdm_ctrl(pll); | 
|  | enabled = (val & sdm_en_mask(pll)); | 
|  |  | 
|  | if (cfg->sdm_data == 0 && enabled) | 
|  | val &= ~pll->params->sdm_ctrl_en_mask; | 
|  |  | 
|  | if (cfg->sdm_data != 0 && !enabled) | 
|  | val |= pll->params->sdm_ctrl_en_mask; | 
|  |  | 
|  | pll_writel_sdm_ctrl(val, pll); | 
|  | } | 
|  |  | 
|  | static void _update_pll_mnp(struct tegra_clk_pll *pll, | 
|  | struct tegra_clk_pll_freq_table *cfg) | 
|  | { | 
|  | u32 val; | 
|  | struct tegra_clk_pll_params *params = pll->params; | 
|  | struct div_nmp *div_nmp = params->div_nmp; | 
|  |  | 
|  | if ((params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) && | 
|  | (pll_override_readl(PMC_PLLP_WB0_OVERRIDE, pll) & | 
|  | PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)) { | 
|  | val = pll_override_readl(params->pmc_divp_reg, pll); | 
|  | val &= ~(divp_mask(pll) << div_nmp->override_divp_shift); | 
|  | val |= cfg->p << div_nmp->override_divp_shift; | 
|  | pll_override_writel(val, params->pmc_divp_reg, pll); | 
|  |  | 
|  | val = pll_override_readl(params->pmc_divnm_reg, pll); | 
|  | val &= ~((divm_mask(pll) << div_nmp->override_divm_shift) | | 
|  | (divn_mask(pll) << div_nmp->override_divn_shift)); | 
|  | val |= (cfg->m << div_nmp->override_divm_shift) | | 
|  | (cfg->n << div_nmp->override_divn_shift); | 
|  | pll_override_writel(val, params->pmc_divnm_reg, pll); | 
|  | } else { | 
|  | val = pll_readl_base(pll); | 
|  |  | 
|  | val &= ~(divm_mask_shifted(pll) | divn_mask_shifted(pll) | | 
|  | divp_mask_shifted(pll)); | 
|  |  | 
|  | val |= (cfg->m << divm_shift(pll)) | | 
|  | (cfg->n << divn_shift(pll)) | | 
|  | (cfg->p << divp_shift(pll)); | 
|  |  | 
|  | pll_writel_base(val, pll); | 
|  |  | 
|  | clk_pll_set_sdm_data(&pll->hw, cfg); | 
|  | } | 
|  | } | 
|  |  | 
|  | static void _get_pll_mnp(struct tegra_clk_pll *pll, | 
|  | struct tegra_clk_pll_freq_table *cfg) | 
|  | { | 
|  | u32 val; | 
|  | struct tegra_clk_pll_params *params = pll->params; | 
|  | struct div_nmp *div_nmp = params->div_nmp; | 
|  |  | 
|  | *cfg = (struct tegra_clk_pll_freq_table) { }; | 
|  |  | 
|  | if ((params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) && | 
|  | (pll_override_readl(PMC_PLLP_WB0_OVERRIDE, pll) & | 
|  | PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)) { | 
|  | val = pll_override_readl(params->pmc_divp_reg, pll); | 
|  | cfg->p = (val >> div_nmp->override_divp_shift) & divp_mask(pll); | 
|  |  | 
|  | val = pll_override_readl(params->pmc_divnm_reg, pll); | 
|  | cfg->m = (val >> div_nmp->override_divm_shift) & divm_mask(pll); | 
|  | cfg->n = (val >> div_nmp->override_divn_shift) & divn_mask(pll); | 
|  | }  else { | 
|  | val = pll_readl_base(pll); | 
|  |  | 
|  | cfg->m = (val >> div_nmp->divm_shift) & divm_mask(pll); | 
|  | cfg->n = (val >> div_nmp->divn_shift) & divn_mask(pll); | 
|  | cfg->p = (val >> div_nmp->divp_shift) & divp_mask(pll); | 
|  |  | 
|  | if (pll->params->sdm_din_reg) { | 
|  | if (sdm_en_mask(pll) & pll_readl_sdm_ctrl(pll)) { | 
|  | val = pll_readl_sdm_din(pll); | 
|  | val &= sdm_din_mask(pll); | 
|  | cfg->sdm_data = sdin_din_to_data(val); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | static void _update_pll_cpcon(struct tegra_clk_pll *pll, | 
|  | struct tegra_clk_pll_freq_table *cfg, | 
|  | unsigned long rate) | 
|  | { | 
|  | u32 val; | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  |  | 
|  | val &= ~(PLL_MISC_CPCON_MASK << PLL_MISC_CPCON_SHIFT); | 
|  | val |= cfg->cpcon << PLL_MISC_CPCON_SHIFT; | 
|  |  | 
|  | if (pll->params->flags & TEGRA_PLL_SET_LFCON) { | 
|  | val &= ~(PLL_MISC_LFCON_MASK << PLL_MISC_LFCON_SHIFT); | 
|  | if (cfg->n >= PLLDU_LFCON_SET_DIVN) | 
|  | val |= 1 << PLL_MISC_LFCON_SHIFT; | 
|  | } else if (pll->params->flags & TEGRA_PLL_SET_DCCON) { | 
|  | val &= ~(1 << PLL_MISC_DCCON_SHIFT); | 
|  | if (rate >= (pll->params->vco_max >> 1)) | 
|  | val |= 1 << PLL_MISC_DCCON_SHIFT; | 
|  | } | 
|  |  | 
|  | pll_writel_misc(val, pll); | 
|  | } | 
|  |  | 
|  | static int _program_pll(struct clk_hw *hw, struct tegra_clk_pll_freq_table *cfg, | 
|  | unsigned long rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | struct tegra_clk_pll_freq_table old_cfg; | 
|  | int state, ret = 0; | 
|  |  | 
|  | state = clk_pll_is_enabled(hw); | 
|  |  | 
|  | _get_pll_mnp(pll, &old_cfg); | 
|  |  | 
|  | if (state && pll->params->defaults_set && pll->params->dyn_ramp && | 
|  | (cfg->m == old_cfg.m) && (cfg->p == old_cfg.p)) { | 
|  | ret = pll->params->dyn_ramp(pll, cfg); | 
|  | if (!ret) | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | if (state) { | 
|  | pll_clk_stop_ss(pll); | 
|  | _clk_pll_disable(hw); | 
|  | } | 
|  |  | 
|  | if (!pll->params->defaults_set && pll->params->set_defaults) | 
|  | pll->params->set_defaults(pll); | 
|  |  | 
|  | _update_pll_mnp(pll, cfg); | 
|  |  | 
|  | if (pll->params->flags & TEGRA_PLL_HAS_CPCON) | 
|  | _update_pll_cpcon(pll, cfg, rate); | 
|  |  | 
|  | if (state) { | 
|  | _clk_pll_enable(hw); | 
|  | ret = clk_pll_wait_for_lock(pll); | 
|  | pll_clk_start_ss(pll); | 
|  | } | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static int clk_pll_set_rate(struct clk_hw *hw, unsigned long rate, | 
|  | unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | struct tegra_clk_pll_freq_table cfg, old_cfg; | 
|  | unsigned long flags = 0; | 
|  | int ret = 0; | 
|  |  | 
|  | if (pll->params->flags & TEGRA_PLL_FIXED) { | 
|  | if (rate != pll->params->fixed_rate) { | 
|  | pr_err("%s: Can not change %s fixed rate %lu to %lu\n", | 
|  | __func__, clk_hw_get_name(hw), | 
|  | pll->params->fixed_rate, rate); | 
|  | return -EINVAL; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | if (_get_table_rate(hw, &cfg, rate, parent_rate) && | 
|  | pll->params->calc_rate(hw, &cfg, rate, parent_rate)) { | 
|  | pr_err("%s: Failed to set %s rate %lu\n", __func__, | 
|  | clk_hw_get_name(hw), rate); | 
|  | WARN_ON(1); | 
|  | return -EINVAL; | 
|  | } | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | _get_pll_mnp(pll, &old_cfg); | 
|  | if (pll->params->flags & TEGRA_PLL_VCO_OUT) | 
|  | cfg.p = old_cfg.p; | 
|  |  | 
|  | if (old_cfg.m != cfg.m || old_cfg.n != cfg.n || old_cfg.p != cfg.p || | 
|  | old_cfg.sdm_data != cfg.sdm_data) | 
|  | ret = _program_pll(hw, &cfg, rate); | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static long clk_pll_round_rate(struct clk_hw *hw, unsigned long rate, | 
|  | unsigned long *prate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | struct tegra_clk_pll_freq_table cfg; | 
|  |  | 
|  | if (pll->params->flags & TEGRA_PLL_FIXED) { | 
|  | /* PLLM/MB are used for memory; we do not change rate */ | 
|  | if (pll->params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) | 
|  | return clk_hw_get_rate(hw); | 
|  | return pll->params->fixed_rate; | 
|  | } | 
|  |  | 
|  | if (_get_table_rate(hw, &cfg, rate, *prate) && | 
|  | pll->params->calc_rate(hw, &cfg, rate, *prate)) | 
|  | return -EINVAL; | 
|  |  | 
|  | return cfg.output_rate; | 
|  | } | 
|  |  | 
|  | static unsigned long clk_pll_recalc_rate(struct clk_hw *hw, | 
|  | unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | struct tegra_clk_pll_freq_table cfg; | 
|  | u32 val; | 
|  | u64 rate = parent_rate; | 
|  | int pdiv; | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  |  | 
|  | if ((pll->params->flags & TEGRA_PLL_BYPASS) && (val & PLL_BASE_BYPASS)) | 
|  | return parent_rate; | 
|  |  | 
|  | if ((pll->params->flags & TEGRA_PLL_FIXED) && | 
|  | !(pll->params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) && | 
|  | !(val & PLL_BASE_OVERRIDE)) { | 
|  | struct tegra_clk_pll_freq_table sel; | 
|  | if (_get_table_rate(hw, &sel, pll->params->fixed_rate, | 
|  | parent_rate)) { | 
|  | pr_err("Clock %s has unknown fixed frequency\n", | 
|  | clk_hw_get_name(hw)); | 
|  | BUG(); | 
|  | } | 
|  | return pll->params->fixed_rate; | 
|  | } | 
|  |  | 
|  | _get_pll_mnp(pll, &cfg); | 
|  |  | 
|  | if (pll->params->flags & TEGRA_PLL_VCO_OUT) { | 
|  | pdiv = 1; | 
|  | } else { | 
|  | pdiv = _hw_to_p_div(hw, cfg.p); | 
|  | if (pdiv < 0) { | 
|  | WARN(1, "Clock %s has invalid pdiv value : 0x%x\n", | 
|  | clk_hw_get_name(hw), cfg.p); | 
|  | pdiv = 1; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (pll->params->set_gain) | 
|  | pll->params->set_gain(&cfg); | 
|  |  | 
|  | cfg.m *= pdiv; | 
|  |  | 
|  | rate *= cfg.n; | 
|  | do_div(rate, cfg.m); | 
|  |  | 
|  | return rate; | 
|  | } | 
|  |  | 
|  | static int clk_plle_training(struct tegra_clk_pll *pll) | 
|  | { | 
|  | u32 val; | 
|  | unsigned long timeout; | 
|  |  | 
|  | if (!pll->pmc) | 
|  | return -ENOSYS; | 
|  |  | 
|  | /* | 
|  | * PLLE is already disabled, and setup cleared; | 
|  | * create falling edge on PLLE IDDQ input. | 
|  | */ | 
|  | val = readl(pll->pmc + PMC_SATA_PWRGT); | 
|  | val |= PMC_SATA_PWRGT_PLLE_IDDQ_VALUE; | 
|  | writel(val, pll->pmc + PMC_SATA_PWRGT); | 
|  |  | 
|  | val = readl(pll->pmc + PMC_SATA_PWRGT); | 
|  | val |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL; | 
|  | writel(val, pll->pmc + PMC_SATA_PWRGT); | 
|  |  | 
|  | val = readl(pll->pmc + PMC_SATA_PWRGT); | 
|  | val &= ~PMC_SATA_PWRGT_PLLE_IDDQ_VALUE; | 
|  | writel(val, pll->pmc + PMC_SATA_PWRGT); | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  |  | 
|  | timeout = jiffies + msecs_to_jiffies(100); | 
|  | while (1) { | 
|  | val = pll_readl_misc(pll); | 
|  | if (val & PLLE_MISC_READY) | 
|  | break; | 
|  | if (time_after(jiffies, timeout)) { | 
|  | pr_err("%s: timeout waiting for PLLE\n", __func__); | 
|  | return -EBUSY; | 
|  | } | 
|  | udelay(300); | 
|  | } | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static int clk_plle_enable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | unsigned long input_rate = clk_hw_get_rate(clk_hw_get_parent(hw)); | 
|  | struct tegra_clk_pll_freq_table sel; | 
|  | u32 val; | 
|  | int err; | 
|  |  | 
|  | if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate)) | 
|  | return -EINVAL; | 
|  |  | 
|  | clk_pll_disable(hw); | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val &= ~(PLLE_MISC_LOCK_ENABLE | PLLE_MISC_SETUP_MASK); | 
|  | pll_writel_misc(val, pll); | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | if (!(val & PLLE_MISC_READY)) { | 
|  | err = clk_plle_training(pll); | 
|  | if (err) | 
|  | return err; | 
|  | } | 
|  |  | 
|  | if (pll->params->flags & TEGRA_PLLE_CONFIGURE) { | 
|  | /* configure dividers */ | 
|  | val = pll_readl_base(pll); | 
|  | val &= ~(divp_mask_shifted(pll) | divn_mask_shifted(pll) | | 
|  | divm_mask_shifted(pll)); | 
|  | val &= ~(PLLE_BASE_DIVCML_MASK << PLLE_BASE_DIVCML_SHIFT); | 
|  | val |= sel.m << divm_shift(pll); | 
|  | val |= sel.n << divn_shift(pll); | 
|  | val |= sel.p << divp_shift(pll); | 
|  | val |= sel.cpcon << PLLE_BASE_DIVCML_SHIFT; | 
|  | pll_writel_base(val, pll); | 
|  | } | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val |= PLLE_MISC_SETUP_VALUE; | 
|  | val |= PLLE_MISC_LOCK_ENABLE; | 
|  | pll_writel_misc(val, pll); | 
|  |  | 
|  | val = readl(pll->clk_base + PLLE_SS_CTRL); | 
|  | val &= ~PLLE_SS_COEFFICIENTS_MASK; | 
|  | val |= PLLE_SS_DISABLE; | 
|  | writel(val, pll->clk_base + PLLE_SS_CTRL); | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val |= (PLL_BASE_BYPASS | PLL_BASE_ENABLE); | 
|  | pll_writel_base(val, pll); | 
|  |  | 
|  | clk_pll_wait_for_lock(pll); | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static unsigned long clk_plle_recalc_rate(struct clk_hw *hw, | 
|  | unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | u32 val = pll_readl_base(pll); | 
|  | u32 divn = 0, divm = 0, divp = 0; | 
|  | u64 rate = parent_rate; | 
|  |  | 
|  | divp = (val >> pll->params->div_nmp->divp_shift) & (divp_mask(pll)); | 
|  | divn = (val >> pll->params->div_nmp->divn_shift) & (divn_mask(pll)); | 
|  | divm = (val >> pll->params->div_nmp->divm_shift) & (divm_mask(pll)); | 
|  | divm *= divp; | 
|  |  | 
|  | rate *= divn; | 
|  | do_div(rate, divm); | 
|  | return rate; | 
|  | } | 
|  |  | 
|  | const struct clk_ops tegra_clk_pll_ops = { | 
|  | .is_enabled = clk_pll_is_enabled, | 
|  | .enable = clk_pll_enable, | 
|  | .disable = clk_pll_disable, | 
|  | .recalc_rate = clk_pll_recalc_rate, | 
|  | .round_rate = clk_pll_round_rate, | 
|  | .set_rate = clk_pll_set_rate, | 
|  | }; | 
|  |  | 
|  | const struct clk_ops tegra_clk_plle_ops = { | 
|  | .recalc_rate = clk_plle_recalc_rate, | 
|  | .is_enabled = clk_pll_is_enabled, | 
|  | .disable = clk_pll_disable, | 
|  | .enable = clk_plle_enable, | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * Structure defining the fields for USB UTMI clocks Parameters. | 
|  | */ | 
|  | struct utmi_clk_param { | 
|  | /* Oscillator Frequency in Hz */ | 
|  | u32 osc_frequency; | 
|  | /* UTMIP PLL Enable Delay Count  */ | 
|  | u8 enable_delay_count; | 
|  | /* UTMIP PLL Stable count */ | 
|  | u8 stable_count; | 
|  | /*  UTMIP PLL Active delay count */ | 
|  | u8 active_delay_count; | 
|  | /* UTMIP PLL Xtal frequency count */ | 
|  | u8 xtal_freq_count; | 
|  | }; | 
|  |  | 
|  | static const struct utmi_clk_param utmi_parameters[] = { | 
|  | { | 
|  | .osc_frequency = 13000000, .enable_delay_count = 0x02, | 
|  | .stable_count = 0x33, .active_delay_count = 0x05, | 
|  | .xtal_freq_count = 0x7f | 
|  | }, { | 
|  | .osc_frequency = 19200000, .enable_delay_count = 0x03, | 
|  | .stable_count = 0x4b, .active_delay_count = 0x06, | 
|  | .xtal_freq_count = 0xbb | 
|  | }, { | 
|  | .osc_frequency = 12000000, .enable_delay_count = 0x02, | 
|  | .stable_count = 0x2f, .active_delay_count = 0x04, | 
|  | .xtal_freq_count = 0x76 | 
|  | }, { | 
|  | .osc_frequency = 26000000, .enable_delay_count = 0x04, | 
|  | .stable_count = 0x66, .active_delay_count = 0x09, | 
|  | .xtal_freq_count = 0xfe | 
|  | }, { | 
|  | .osc_frequency = 16800000, .enable_delay_count = 0x03, | 
|  | .stable_count = 0x41, .active_delay_count = 0x0a, | 
|  | .xtal_freq_count = 0xa4 | 
|  | }, { | 
|  | .osc_frequency = 38400000, .enable_delay_count = 0x0, | 
|  | .stable_count = 0x0, .active_delay_count = 0x6, | 
|  | .xtal_freq_count = 0x80 | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static int clk_pllu_enable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | struct clk_hw *pll_ref = clk_hw_get_parent(hw); | 
|  | struct clk_hw *osc = clk_hw_get_parent(pll_ref); | 
|  | const struct utmi_clk_param *params = NULL; | 
|  | unsigned long flags = 0, input_rate; | 
|  | unsigned int i; | 
|  | int ret = 0; | 
|  | u32 value; | 
|  |  | 
|  | if (!osc) { | 
|  | pr_err("%s: failed to get OSC clock\n", __func__); | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | input_rate = clk_hw_get_rate(osc); | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | _clk_pll_enable(hw); | 
|  |  | 
|  | ret = clk_pll_wait_for_lock(pll); | 
|  | if (ret < 0) | 
|  | goto out; | 
|  |  | 
|  | for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) { | 
|  | if (input_rate == utmi_parameters[i].osc_frequency) { | 
|  | params = &utmi_parameters[i]; | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (!params) { | 
|  | pr_err("%s: unexpected input rate %lu Hz\n", __func__, | 
|  | input_rate); | 
|  | ret = -EINVAL; | 
|  | goto out; | 
|  | } | 
|  |  | 
|  | value = pll_readl_base(pll); | 
|  | value &= ~PLLU_BASE_OVERRIDE; | 
|  | pll_writel_base(value, pll); | 
|  |  | 
|  | value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG2); | 
|  | /* Program UTMIP PLL stable and active counts */ | 
|  | value &= ~UTMIP_PLL_CFG2_STABLE_COUNT(~0); | 
|  | value |= UTMIP_PLL_CFG2_STABLE_COUNT(params->stable_count); | 
|  | value &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0); | 
|  | value |= UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(params->active_delay_count); | 
|  | /* Remove power downs from UTMIP PLL control bits */ | 
|  | value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN; | 
|  | value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN; | 
|  | value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN; | 
|  | writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG2); | 
|  |  | 
|  | value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG1); | 
|  | /* Program UTMIP PLL delay and oscillator frequency counts */ | 
|  | value &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0); | 
|  | value |= UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(params->enable_delay_count); | 
|  | value &= ~UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(~0); | 
|  | value |= UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(params->xtal_freq_count); | 
|  | /* Remove power downs from UTMIP PLL control bits */ | 
|  | value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN; | 
|  | value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN; | 
|  | value &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN; | 
|  | writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG1); | 
|  |  | 
|  | out: | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static const struct clk_ops tegra_clk_pllu_ops = { | 
|  | .is_enabled = clk_pll_is_enabled, | 
|  | .enable = clk_pllu_enable, | 
|  | .disable = clk_pll_disable, | 
|  | .recalc_rate = clk_pll_recalc_rate, | 
|  | .round_rate = clk_pll_round_rate, | 
|  | .set_rate = clk_pll_set_rate, | 
|  | }; | 
|  |  | 
|  | static int _pll_fixed_mdiv(struct tegra_clk_pll_params *pll_params, | 
|  | unsigned long parent_rate) | 
|  | { | 
|  | u16 mdiv = parent_rate / pll_params->cf_min; | 
|  |  | 
|  | if (pll_params->flags & TEGRA_MDIV_NEW) | 
|  | return (!pll_params->mdiv_default ? mdiv : | 
|  | min(mdiv, pll_params->mdiv_default)); | 
|  |  | 
|  | if (pll_params->mdiv_default) | 
|  | return pll_params->mdiv_default; | 
|  |  | 
|  | if (parent_rate > pll_params->cf_max) | 
|  | return 2; | 
|  | else | 
|  | return 1; | 
|  | } | 
|  |  | 
|  | static int _calc_dynamic_ramp_rate(struct clk_hw *hw, | 
|  | struct tegra_clk_pll_freq_table *cfg, | 
|  | unsigned long rate, unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | unsigned int p; | 
|  | int p_div; | 
|  |  | 
|  | if (!rate) | 
|  | return -EINVAL; | 
|  |  | 
|  | p = DIV_ROUND_UP(pll->params->vco_min, rate); | 
|  | cfg->m = _pll_fixed_mdiv(pll->params, parent_rate); | 
|  | cfg->output_rate = rate * p; | 
|  | cfg->n = cfg->output_rate * cfg->m / parent_rate; | 
|  | cfg->input_rate = parent_rate; | 
|  |  | 
|  | p_div = _p_div_to_hw(hw, p); | 
|  | if (p_div < 0) | 
|  | return p_div; | 
|  |  | 
|  | cfg->p = p_div; | 
|  |  | 
|  | if (cfg->n > divn_max(pll) || cfg->output_rate > pll->params->vco_max) | 
|  | return -EINVAL; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | #if defined(CONFIG_ARCH_TEGRA_114_SOC) || \ | 
|  | defined(CONFIG_ARCH_TEGRA_124_SOC) || \ | 
|  | defined(CONFIG_ARCH_TEGRA_132_SOC) || \ | 
|  | defined(CONFIG_ARCH_TEGRA_210_SOC) | 
|  |  | 
|  | u16 tegra_pll_get_fixed_mdiv(struct clk_hw *hw, unsigned long input_rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  |  | 
|  | return (u16)_pll_fixed_mdiv(pll->params, input_rate); | 
|  | } | 
|  |  | 
|  | static unsigned long _clip_vco_min(unsigned long vco_min, | 
|  | unsigned long parent_rate) | 
|  | { | 
|  | return DIV_ROUND_UP(vco_min, parent_rate) * parent_rate; | 
|  | } | 
|  |  | 
|  | static int _setup_dynamic_ramp(struct tegra_clk_pll_params *pll_params, | 
|  | void __iomem *clk_base, | 
|  | unsigned long parent_rate) | 
|  | { | 
|  | u32 val; | 
|  | u32 step_a, step_b; | 
|  |  | 
|  | switch (parent_rate) { | 
|  | case 12000000: | 
|  | case 13000000: | 
|  | case 26000000: | 
|  | step_a = 0x2B; | 
|  | step_b = 0x0B; | 
|  | break; | 
|  | case 16800000: | 
|  | step_a = 0x1A; | 
|  | step_b = 0x09; | 
|  | break; | 
|  | case 19200000: | 
|  | step_a = 0x12; | 
|  | step_b = 0x08; | 
|  | break; | 
|  | default: | 
|  | pr_err("%s: Unexpected reference rate %lu\n", | 
|  | __func__, parent_rate); | 
|  | WARN_ON(1); | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | val = step_a << pll_params->stepa_shift; | 
|  | val |= step_b << pll_params->stepb_shift; | 
|  | writel_relaxed(val, clk_base + pll_params->dyn_ramp_reg); | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static int _pll_ramp_calc_pll(struct clk_hw *hw, | 
|  | struct tegra_clk_pll_freq_table *cfg, | 
|  | unsigned long rate, unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | int err = 0; | 
|  |  | 
|  | err = _get_table_rate(hw, cfg, rate, parent_rate); | 
|  | if (err < 0) | 
|  | err = _calc_dynamic_ramp_rate(hw, cfg, rate, parent_rate); | 
|  | else { | 
|  | if (cfg->m != _pll_fixed_mdiv(pll->params, parent_rate)) { | 
|  | WARN_ON(1); | 
|  | err = -EINVAL; | 
|  | goto out; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (cfg->p >  pll->params->max_p) | 
|  | err = -EINVAL; | 
|  |  | 
|  | out: | 
|  | return err; | 
|  | } | 
|  |  | 
|  | static int clk_pllxc_set_rate(struct clk_hw *hw, unsigned long rate, | 
|  | unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | struct tegra_clk_pll_freq_table cfg, old_cfg; | 
|  | unsigned long flags = 0; | 
|  | int ret; | 
|  |  | 
|  | ret = _pll_ramp_calc_pll(hw, &cfg, rate, parent_rate); | 
|  | if (ret < 0) | 
|  | return ret; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | _get_pll_mnp(pll, &old_cfg); | 
|  | if (pll->params->flags & TEGRA_PLL_VCO_OUT) | 
|  | cfg.p = old_cfg.p; | 
|  |  | 
|  | if (old_cfg.m != cfg.m || old_cfg.n != cfg.n || old_cfg.p != cfg.p) | 
|  | ret = _program_pll(hw, &cfg, rate); | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static long clk_pll_ramp_round_rate(struct clk_hw *hw, unsigned long rate, | 
|  | unsigned long *prate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | struct tegra_clk_pll_freq_table cfg; | 
|  | int ret, p_div; | 
|  | u64 output_rate = *prate; | 
|  |  | 
|  | ret = _pll_ramp_calc_pll(hw, &cfg, rate, *prate); | 
|  | if (ret < 0) | 
|  | return ret; | 
|  |  | 
|  | p_div = _hw_to_p_div(hw, cfg.p); | 
|  | if (p_div < 0) | 
|  | return p_div; | 
|  |  | 
|  | if (pll->params->set_gain) | 
|  | pll->params->set_gain(&cfg); | 
|  |  | 
|  | output_rate *= cfg.n; | 
|  | do_div(output_rate, cfg.m * p_div); | 
|  |  | 
|  | return output_rate; | 
|  | } | 
|  |  | 
|  | static void _pllcx_strobe(struct tegra_clk_pll *pll) | 
|  | { | 
|  | u32 val; | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val |= PLLCX_MISC_STROBE; | 
|  | pll_writel_misc(val, pll); | 
|  | udelay(2); | 
|  |  | 
|  | val &= ~PLLCX_MISC_STROBE; | 
|  | pll_writel_misc(val, pll); | 
|  | } | 
|  |  | 
|  | static int clk_pllc_enable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | u32 val; | 
|  | int ret; | 
|  | unsigned long flags = 0; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | _clk_pll_enable(hw); | 
|  | udelay(2); | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val &= ~PLLCX_MISC_RESET; | 
|  | pll_writel_misc(val, pll); | 
|  | udelay(2); | 
|  |  | 
|  | _pllcx_strobe(pll); | 
|  |  | 
|  | ret = clk_pll_wait_for_lock(pll); | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static void _clk_pllc_disable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | u32 val; | 
|  |  | 
|  | _clk_pll_disable(hw); | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val |= PLLCX_MISC_RESET; | 
|  | pll_writel_misc(val, pll); | 
|  | udelay(2); | 
|  | } | 
|  |  | 
|  | static void clk_pllc_disable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | unsigned long flags = 0; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | _clk_pllc_disable(hw); | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  | } | 
|  |  | 
|  | static int _pllcx_update_dynamic_coef(struct tegra_clk_pll *pll, | 
|  | unsigned long input_rate, u32 n) | 
|  | { | 
|  | u32 val, n_threshold; | 
|  |  | 
|  | switch (input_rate) { | 
|  | case 12000000: | 
|  | n_threshold = 70; | 
|  | break; | 
|  | case 13000000: | 
|  | case 26000000: | 
|  | n_threshold = 71; | 
|  | break; | 
|  | case 16800000: | 
|  | n_threshold = 55; | 
|  | break; | 
|  | case 19200000: | 
|  | n_threshold = 48; | 
|  | break; | 
|  | default: | 
|  | pr_err("%s: Unexpected reference rate %lu\n", | 
|  | __func__, input_rate); | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val &= ~(PLLCX_MISC_SDM_DIV_MASK | PLLCX_MISC_FILT_DIV_MASK); | 
|  | val |= n <= n_threshold ? | 
|  | PLLCX_MISC_DIV_LOW_RANGE : PLLCX_MISC_DIV_HIGH_RANGE; | 
|  | pll_writel_misc(val, pll); | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static int clk_pllc_set_rate(struct clk_hw *hw, unsigned long rate, | 
|  | unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll_freq_table cfg, old_cfg; | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | unsigned long flags = 0; | 
|  | int state, ret = 0; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | ret = _pll_ramp_calc_pll(hw, &cfg, rate, parent_rate); | 
|  | if (ret < 0) | 
|  | goto out; | 
|  |  | 
|  | _get_pll_mnp(pll, &old_cfg); | 
|  |  | 
|  | if (cfg.m != old_cfg.m) { | 
|  | WARN_ON(1); | 
|  | goto out; | 
|  | } | 
|  |  | 
|  | if (old_cfg.n == cfg.n && old_cfg.p == cfg.p) | 
|  | goto out; | 
|  |  | 
|  | state = clk_pll_is_enabled(hw); | 
|  | if (state) | 
|  | _clk_pllc_disable(hw); | 
|  |  | 
|  | ret = _pllcx_update_dynamic_coef(pll, parent_rate, cfg.n); | 
|  | if (ret < 0) | 
|  | goto out; | 
|  |  | 
|  | _update_pll_mnp(pll, &cfg); | 
|  |  | 
|  | if (state) | 
|  | ret = clk_pllc_enable(hw); | 
|  |  | 
|  | out: | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static long _pllre_calc_rate(struct tegra_clk_pll *pll, | 
|  | struct tegra_clk_pll_freq_table *cfg, | 
|  | unsigned long rate, unsigned long parent_rate) | 
|  | { | 
|  | u16 m, n; | 
|  | u64 output_rate = parent_rate; | 
|  |  | 
|  | m = _pll_fixed_mdiv(pll->params, parent_rate); | 
|  | n = rate * m / parent_rate; | 
|  |  | 
|  | output_rate *= n; | 
|  | do_div(output_rate, m); | 
|  |  | 
|  | if (cfg) { | 
|  | cfg->m = m; | 
|  | cfg->n = n; | 
|  | } | 
|  |  | 
|  | return output_rate; | 
|  | } | 
|  |  | 
|  | static int clk_pllre_set_rate(struct clk_hw *hw, unsigned long rate, | 
|  | unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll_freq_table cfg, old_cfg; | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | unsigned long flags = 0; | 
|  | int state, ret = 0; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | _pllre_calc_rate(pll, &cfg, rate, parent_rate); | 
|  | _get_pll_mnp(pll, &old_cfg); | 
|  | cfg.p = old_cfg.p; | 
|  |  | 
|  | if (cfg.m != old_cfg.m || cfg.n != old_cfg.n) { | 
|  | state = clk_pll_is_enabled(hw); | 
|  | if (state) | 
|  | _clk_pll_disable(hw); | 
|  |  | 
|  | _update_pll_mnp(pll, &cfg); | 
|  |  | 
|  | if (state) { | 
|  | _clk_pll_enable(hw); | 
|  | ret = clk_pll_wait_for_lock(pll); | 
|  | } | 
|  | } | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static unsigned long clk_pllre_recalc_rate(struct clk_hw *hw, | 
|  | unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll_freq_table cfg; | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | u64 rate = parent_rate; | 
|  |  | 
|  | _get_pll_mnp(pll, &cfg); | 
|  |  | 
|  | rate *= cfg.n; | 
|  | do_div(rate, cfg.m); | 
|  |  | 
|  | return rate; | 
|  | } | 
|  |  | 
|  | static long clk_pllre_round_rate(struct clk_hw *hw, unsigned long rate, | 
|  | unsigned long *prate) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  |  | 
|  | return _pllre_calc_rate(pll, NULL, rate, *prate); | 
|  | } | 
|  |  | 
|  | static int clk_plle_tegra114_enable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | struct tegra_clk_pll_freq_table sel; | 
|  | u32 val; | 
|  | int ret; | 
|  | unsigned long flags = 0; | 
|  | unsigned long input_rate = clk_hw_get_rate(clk_hw_get_parent(hw)); | 
|  |  | 
|  | if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate)) | 
|  | return -EINVAL; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val &= ~BIT(29); /* Disable lock override */ | 
|  | pll_writel_base(val, pll); | 
|  |  | 
|  | val = pll_readl(pll->params->aux_reg, pll); | 
|  | val |= PLLE_AUX_ENABLE_SWCTL; | 
|  | val &= ~PLLE_AUX_SEQ_ENABLE; | 
|  | pll_writel(val, pll->params->aux_reg, pll); | 
|  | udelay(1); | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val |= PLLE_MISC_LOCK_ENABLE; | 
|  | val |= PLLE_MISC_IDDQ_SW_CTRL; | 
|  | val &= ~PLLE_MISC_IDDQ_SW_VALUE; | 
|  | val |= PLLE_MISC_PLLE_PTS; | 
|  | val &= ~(PLLE_MISC_VREG_BG_CTRL_MASK | PLLE_MISC_VREG_CTRL_MASK); | 
|  | pll_writel_misc(val, pll); | 
|  | udelay(5); | 
|  |  | 
|  | val = pll_readl(PLLE_SS_CTRL, pll); | 
|  | val |= PLLE_SS_DISABLE; | 
|  | pll_writel(val, PLLE_SS_CTRL, pll); | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val &= ~(divp_mask_shifted(pll) | divn_mask_shifted(pll) | | 
|  | divm_mask_shifted(pll)); | 
|  | val &= ~(PLLE_BASE_DIVCML_MASK << PLLE_BASE_DIVCML_SHIFT); | 
|  | val |= sel.m << divm_shift(pll); | 
|  | val |= sel.n << divn_shift(pll); | 
|  | val |= sel.cpcon << PLLE_BASE_DIVCML_SHIFT; | 
|  | pll_writel_base(val, pll); | 
|  | udelay(1); | 
|  |  | 
|  | _clk_pll_enable(hw); | 
|  | ret = clk_pll_wait_for_lock(pll); | 
|  |  | 
|  | if (ret < 0) | 
|  | goto out; | 
|  |  | 
|  | val = pll_readl(PLLE_SS_CTRL, pll); | 
|  | val &= ~(PLLE_SS_CNTL_CENTER | PLLE_SS_CNTL_INVERT); | 
|  | val &= ~PLLE_SS_COEFFICIENTS_MASK; | 
|  | val |= PLLE_SS_COEFFICIENTS_VAL_TEGRA114; | 
|  | pll_writel(val, PLLE_SS_CTRL, pll); | 
|  | val &= ~(PLLE_SS_CNTL_SSC_BYP | PLLE_SS_CNTL_BYPASS_SS); | 
|  | pll_writel(val, PLLE_SS_CTRL, pll); | 
|  | udelay(1); | 
|  | val &= ~PLLE_SS_CNTL_INTERP_RESET; | 
|  | pll_writel(val, PLLE_SS_CTRL, pll); | 
|  | udelay(1); | 
|  |  | 
|  | /* Enable hw control of xusb brick pll */ | 
|  | val = pll_readl_misc(pll); | 
|  | val &= ~PLLE_MISC_IDDQ_SW_CTRL; | 
|  | pll_writel_misc(val, pll); | 
|  |  | 
|  | val = pll_readl(pll->params->aux_reg, pll); | 
|  | val |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SEQ_START_STATE); | 
|  | val &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL); | 
|  | pll_writel(val, pll->params->aux_reg, pll); | 
|  | udelay(1); | 
|  | val |= PLLE_AUX_SEQ_ENABLE; | 
|  | pll_writel(val, pll->params->aux_reg, pll); | 
|  |  | 
|  | val = pll_readl(XUSBIO_PLL_CFG0, pll); | 
|  | val |= (XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET | | 
|  | XUSBIO_PLL_CFG0_SEQ_START_STATE); | 
|  | val &= ~(XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL | | 
|  | XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL); | 
|  | pll_writel(val, XUSBIO_PLL_CFG0, pll); | 
|  | udelay(1); | 
|  | val |= XUSBIO_PLL_CFG0_SEQ_ENABLE; | 
|  | pll_writel(val, XUSBIO_PLL_CFG0, pll); | 
|  |  | 
|  | /* Enable hw control of SATA pll */ | 
|  | val = pll_readl(SATA_PLL_CFG0, pll); | 
|  | val &= ~SATA_PLL_CFG0_PADPLL_RESET_SWCTL; | 
|  | val |= SATA_PLL_CFG0_PADPLL_USE_LOCKDET; | 
|  | val |= SATA_PLL_CFG0_SEQ_START_STATE; | 
|  | pll_writel(val, SATA_PLL_CFG0, pll); | 
|  |  | 
|  | udelay(1); | 
|  |  | 
|  | val = pll_readl(SATA_PLL_CFG0, pll); | 
|  | val |= SATA_PLL_CFG0_SEQ_ENABLE; | 
|  | pll_writel(val, SATA_PLL_CFG0, pll); | 
|  |  | 
|  | out: | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static void clk_plle_tegra114_disable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | unsigned long flags = 0; | 
|  | u32 val; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | _clk_pll_disable(hw); | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val |= PLLE_MISC_IDDQ_SW_CTRL | PLLE_MISC_IDDQ_SW_VALUE; | 
|  | pll_writel_misc(val, pll); | 
|  | udelay(1); | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  | } | 
|  |  | 
|  | static int clk_pllu_tegra114_enable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | const struct utmi_clk_param *params = NULL; | 
|  | struct clk *osc = __clk_lookup("osc"); | 
|  | unsigned long flags = 0, input_rate; | 
|  | unsigned int i; | 
|  | int ret = 0; | 
|  | u32 value; | 
|  |  | 
|  | if (!osc) { | 
|  | pr_err("%s: failed to get OSC clock\n", __func__); | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | input_rate = clk_hw_get_rate(__clk_get_hw(osc)); | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | _clk_pll_enable(hw); | 
|  |  | 
|  | ret = clk_pll_wait_for_lock(pll); | 
|  | if (ret < 0) | 
|  | goto out; | 
|  |  | 
|  | for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) { | 
|  | if (input_rate == utmi_parameters[i].osc_frequency) { | 
|  | params = &utmi_parameters[i]; | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (!params) { | 
|  | pr_err("%s: unexpected input rate %lu Hz\n", __func__, | 
|  | input_rate); | 
|  | ret = -EINVAL; | 
|  | goto out; | 
|  | } | 
|  |  | 
|  | value = pll_readl_base(pll); | 
|  | value &= ~PLLU_BASE_OVERRIDE; | 
|  | pll_writel_base(value, pll); | 
|  |  | 
|  | value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG2); | 
|  | /* Program UTMIP PLL stable and active counts */ | 
|  | value &= ~UTMIP_PLL_CFG2_STABLE_COUNT(~0); | 
|  | value |= UTMIP_PLL_CFG2_STABLE_COUNT(params->stable_count); | 
|  | value &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0); | 
|  | value |= UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(params->active_delay_count); | 
|  | /* Remove power downs from UTMIP PLL control bits */ | 
|  | value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN; | 
|  | value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN; | 
|  | value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN; | 
|  | writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG2); | 
|  |  | 
|  | value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG1); | 
|  | /* Program UTMIP PLL delay and oscillator frequency counts */ | 
|  | value &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0); | 
|  | value |= UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(params->enable_delay_count); | 
|  | value &= ~UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(~0); | 
|  | value |= UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(params->xtal_freq_count); | 
|  | /* Remove power downs from UTMIP PLL control bits */ | 
|  | value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN; | 
|  | value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN; | 
|  | value &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERUP; | 
|  | value &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN; | 
|  | writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG1); | 
|  |  | 
|  | /* Setup HW control of UTMIPLL */ | 
|  | value = readl_relaxed(pll->clk_base + UTMIPLL_HW_PWRDN_CFG0); | 
|  | value |= UTMIPLL_HW_PWRDN_CFG0_USE_LOCKDET; | 
|  | value &= ~UTMIPLL_HW_PWRDN_CFG0_CLK_ENABLE_SWCTL; | 
|  | value |= UTMIPLL_HW_PWRDN_CFG0_SEQ_START_STATE; | 
|  | writel_relaxed(value, pll->clk_base + UTMIPLL_HW_PWRDN_CFG0); | 
|  |  | 
|  | value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG1); | 
|  | value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERUP; | 
|  | value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN; | 
|  | writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG1); | 
|  |  | 
|  | udelay(1); | 
|  |  | 
|  | /* | 
|  | * Setup SW override of UTMIPLL assuming USB2.0 ports are assigned | 
|  | * to USB2 | 
|  | */ | 
|  | value = readl_relaxed(pll->clk_base + UTMIPLL_HW_PWRDN_CFG0); | 
|  | value |= UTMIPLL_HW_PWRDN_CFG0_IDDQ_SWCTL; | 
|  | value &= ~UTMIPLL_HW_PWRDN_CFG0_IDDQ_OVERRIDE; | 
|  | writel_relaxed(value, pll->clk_base + UTMIPLL_HW_PWRDN_CFG0); | 
|  |  | 
|  | udelay(1); | 
|  |  | 
|  | /* Enable HW control of UTMIPLL */ | 
|  | value = readl_relaxed(pll->clk_base + UTMIPLL_HW_PWRDN_CFG0); | 
|  | value |= UTMIPLL_HW_PWRDN_CFG0_SEQ_ENABLE; | 
|  | writel_relaxed(value, pll->clk_base + UTMIPLL_HW_PWRDN_CFG0); | 
|  |  | 
|  | out: | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | static struct tegra_clk_pll *_tegra_init_pll(void __iomem *clk_base, | 
|  | void __iomem *pmc, struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  |  | 
|  | pll = kzalloc(sizeof(*pll), GFP_KERNEL); | 
|  | if (!pll) | 
|  | return ERR_PTR(-ENOMEM); | 
|  |  | 
|  | pll->clk_base = clk_base; | 
|  | pll->pmc = pmc; | 
|  |  | 
|  | pll->params = pll_params; | 
|  | pll->lock = lock; | 
|  |  | 
|  | if (!pll_params->div_nmp) | 
|  | pll_params->div_nmp = &default_nmp; | 
|  |  | 
|  | return pll; | 
|  | } | 
|  |  | 
|  | static struct clk *_tegra_clk_register_pll(struct tegra_clk_pll *pll, | 
|  | const char *name, const char *parent_name, unsigned long flags, | 
|  | const struct clk_ops *ops) | 
|  | { | 
|  | struct clk_init_data init; | 
|  |  | 
|  | init.name = name; | 
|  | init.ops = ops; | 
|  | init.flags = flags; | 
|  | init.parent_names = (parent_name ? &parent_name : NULL); | 
|  | init.num_parents = (parent_name ? 1 : 0); | 
|  |  | 
|  | /* Default to _calc_rate if unspecified */ | 
|  | if (!pll->params->calc_rate) { | 
|  | if (pll->params->flags & TEGRA_PLLM) | 
|  | pll->params->calc_rate = _calc_dynamic_ramp_rate; | 
|  | else | 
|  | pll->params->calc_rate = _calc_rate; | 
|  | } | 
|  |  | 
|  | if (pll->params->set_defaults) | 
|  | pll->params->set_defaults(pll); | 
|  |  | 
|  | /* Data in .init is copied by clk_register(), so stack variable OK */ | 
|  | pll->hw.init = &init; | 
|  |  | 
|  | return clk_register(NULL, &pll->hw); | 
|  | } | 
|  |  | 
|  | struct clk *tegra_clk_register_pll(const char *name, const char *parent_name, | 
|  | void __iomem *clk_base, void __iomem *pmc, | 
|  | unsigned long flags, struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk; | 
|  |  | 
|  | pll_params->flags |= TEGRA_PLL_BYPASS; | 
|  |  | 
|  | pll = _tegra_init_pll(clk_base, pmc, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pll_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | static struct div_nmp pll_e_nmp = { | 
|  | .divn_shift = PLLE_BASE_DIVN_SHIFT, | 
|  | .divn_width = PLLE_BASE_DIVN_WIDTH, | 
|  | .divm_shift = PLLE_BASE_DIVM_SHIFT, | 
|  | .divm_width = PLLE_BASE_DIVM_WIDTH, | 
|  | .divp_shift = PLLE_BASE_DIVP_SHIFT, | 
|  | .divp_width = PLLE_BASE_DIVP_WIDTH, | 
|  | }; | 
|  |  | 
|  | struct clk *tegra_clk_register_plle(const char *name, const char *parent_name, | 
|  | void __iomem *clk_base, void __iomem *pmc, | 
|  | unsigned long flags, struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk; | 
|  |  | 
|  | pll_params->flags |= TEGRA_PLL_BYPASS; | 
|  |  | 
|  | if (!pll_params->div_nmp) | 
|  | pll_params->div_nmp = &pll_e_nmp; | 
|  |  | 
|  | pll = _tegra_init_pll(clk_base, pmc, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_plle_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | struct clk *tegra_clk_register_pllu(const char *name, const char *parent_name, | 
|  | void __iomem *clk_base, unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk; | 
|  |  | 
|  | pll_params->flags |= TEGRA_PLLU; | 
|  |  | 
|  | pll = _tegra_init_pll(clk_base, NULL, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pllu_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | #if defined(CONFIG_ARCH_TEGRA_114_SOC) || \ | 
|  | defined(CONFIG_ARCH_TEGRA_124_SOC) || \ | 
|  | defined(CONFIG_ARCH_TEGRA_132_SOC) || \ | 
|  | defined(CONFIG_ARCH_TEGRA_210_SOC) | 
|  | static const struct clk_ops tegra_clk_pllxc_ops = { | 
|  | .is_enabled = clk_pll_is_enabled, | 
|  | .enable = clk_pll_enable, | 
|  | .disable = clk_pll_disable, | 
|  | .recalc_rate = clk_pll_recalc_rate, | 
|  | .round_rate = clk_pll_ramp_round_rate, | 
|  | .set_rate = clk_pllxc_set_rate, | 
|  | }; | 
|  |  | 
|  | static const struct clk_ops tegra_clk_pllc_ops = { | 
|  | .is_enabled = clk_pll_is_enabled, | 
|  | .enable = clk_pllc_enable, | 
|  | .disable = clk_pllc_disable, | 
|  | .recalc_rate = clk_pll_recalc_rate, | 
|  | .round_rate = clk_pll_ramp_round_rate, | 
|  | .set_rate = clk_pllc_set_rate, | 
|  | }; | 
|  |  | 
|  | static const struct clk_ops tegra_clk_pllre_ops = { | 
|  | .is_enabled = clk_pll_is_enabled, | 
|  | .enable = clk_pll_enable, | 
|  | .disable = clk_pll_disable, | 
|  | .recalc_rate = clk_pllre_recalc_rate, | 
|  | .round_rate = clk_pllre_round_rate, | 
|  | .set_rate = clk_pllre_set_rate, | 
|  | }; | 
|  |  | 
|  | static const struct clk_ops tegra_clk_plle_tegra114_ops = { | 
|  | .is_enabled =  clk_pll_is_enabled, | 
|  | .enable = clk_plle_tegra114_enable, | 
|  | .disable = clk_plle_tegra114_disable, | 
|  | .recalc_rate = clk_pll_recalc_rate, | 
|  | }; | 
|  |  | 
|  | static const struct clk_ops tegra_clk_pllu_tegra114_ops = { | 
|  | .is_enabled =  clk_pll_is_enabled, | 
|  | .enable = clk_pllu_tegra114_enable, | 
|  | .disable = clk_pll_disable, | 
|  | .recalc_rate = clk_pll_recalc_rate, | 
|  | }; | 
|  |  | 
|  | struct clk *tegra_clk_register_pllxc(const char *name, const char *parent_name, | 
|  | void __iomem *clk_base, void __iomem *pmc, | 
|  | unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk, *parent; | 
|  | unsigned long parent_rate; | 
|  | u32 val, val_iddq; | 
|  |  | 
|  | parent = __clk_lookup(parent_name); | 
|  | if (!parent) { | 
|  | WARN(1, "parent clk %s of %s must be registered first\n", | 
|  | parent_name, name); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  |  | 
|  | if (!pll_params->pdiv_tohw) | 
|  | return ERR_PTR(-EINVAL); | 
|  |  | 
|  | parent_rate = clk_get_rate(parent); | 
|  |  | 
|  | pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); | 
|  |  | 
|  | if (pll_params->adjust_vco) | 
|  | pll_params->vco_min = pll_params->adjust_vco(pll_params, | 
|  | parent_rate); | 
|  |  | 
|  | /* | 
|  | * If the pll has a set_defaults callback, it will take care of | 
|  | * configuring dynamic ramping and setting IDDQ in that path. | 
|  | */ | 
|  | if (!pll_params->set_defaults) { | 
|  | int err; | 
|  |  | 
|  | err = _setup_dynamic_ramp(pll_params, clk_base, parent_rate); | 
|  | if (err) | 
|  | return ERR_PTR(err); | 
|  |  | 
|  | val = readl_relaxed(clk_base + pll_params->base_reg); | 
|  | val_iddq = readl_relaxed(clk_base + pll_params->iddq_reg); | 
|  |  | 
|  | if (val & PLL_BASE_ENABLE) | 
|  | WARN_ON(val_iddq & BIT(pll_params->iddq_bit_idx)); | 
|  | else { | 
|  | val_iddq |= BIT(pll_params->iddq_bit_idx); | 
|  | writel_relaxed(val_iddq, | 
|  | clk_base + pll_params->iddq_reg); | 
|  | } | 
|  | } | 
|  |  | 
|  | pll = _tegra_init_pll(clk_base, pmc, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pllxc_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | struct clk *tegra_clk_register_pllre(const char *name, const char *parent_name, | 
|  | void __iomem *clk_base, void __iomem *pmc, | 
|  | unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock, unsigned long parent_rate) | 
|  | { | 
|  | u32 val; | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk; | 
|  |  | 
|  | pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); | 
|  |  | 
|  | if (pll_params->adjust_vco) | 
|  | pll_params->vco_min = pll_params->adjust_vco(pll_params, | 
|  | parent_rate); | 
|  |  | 
|  | pll = _tegra_init_pll(clk_base, pmc, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | /* program minimum rate by default */ | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | if (val & PLL_BASE_ENABLE) | 
|  | WARN_ON(readl_relaxed(clk_base + pll_params->iddq_reg) & | 
|  | BIT(pll_params->iddq_bit_idx)); | 
|  | else { | 
|  | int m; | 
|  |  | 
|  | m = _pll_fixed_mdiv(pll_params, parent_rate); | 
|  | val = m << divm_shift(pll); | 
|  | val |= (pll_params->vco_min / parent_rate) << divn_shift(pll); | 
|  | pll_writel_base(val, pll); | 
|  | } | 
|  |  | 
|  | /* disable lock override */ | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val &= ~BIT(29); | 
|  | pll_writel_misc(val, pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pllre_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | struct clk *tegra_clk_register_pllm(const char *name, const char *parent_name, | 
|  | void __iomem *clk_base, void __iomem *pmc, | 
|  | unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk, *parent; | 
|  | unsigned long parent_rate; | 
|  |  | 
|  | if (!pll_params->pdiv_tohw) | 
|  | return ERR_PTR(-EINVAL); | 
|  |  | 
|  | parent = __clk_lookup(parent_name); | 
|  | if (!parent) { | 
|  | WARN(1, "parent clk %s of %s must be registered first\n", | 
|  | parent_name, name); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  |  | 
|  | parent_rate = clk_get_rate(parent); | 
|  |  | 
|  | pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); | 
|  |  | 
|  | if (pll_params->adjust_vco) | 
|  | pll_params->vco_min = pll_params->adjust_vco(pll_params, | 
|  | parent_rate); | 
|  |  | 
|  | pll_params->flags |= TEGRA_PLL_BYPASS; | 
|  | pll_params->flags |= TEGRA_PLLM; | 
|  | pll = _tegra_init_pll(clk_base, pmc, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pll_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | struct clk *tegra_clk_register_pllc(const char *name, const char *parent_name, | 
|  | void __iomem *clk_base, void __iomem *pmc, | 
|  | unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct clk *parent, *clk; | 
|  | const struct pdiv_map *p_tohw = pll_params->pdiv_tohw; | 
|  | struct tegra_clk_pll *pll; | 
|  | struct tegra_clk_pll_freq_table cfg; | 
|  | unsigned long parent_rate; | 
|  |  | 
|  | if (!p_tohw) | 
|  | return ERR_PTR(-EINVAL); | 
|  |  | 
|  | parent = __clk_lookup(parent_name); | 
|  | if (!parent) { | 
|  | WARN(1, "parent clk %s of %s must be registered first\n", | 
|  | parent_name, name); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  |  | 
|  | parent_rate = clk_get_rate(parent); | 
|  |  | 
|  | pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); | 
|  |  | 
|  | pll_params->flags |= TEGRA_PLL_BYPASS; | 
|  | pll = _tegra_init_pll(clk_base, pmc, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | /* | 
|  | * Most of PLLC register fields are shadowed, and can not be read | 
|  | * directly from PLL h/w. Hence, actual PLLC boot state is unknown. | 
|  | * Initialize PLL to default state: disabled, reset; shadow registers | 
|  | * loaded with default parameters; dividers are preset for half of | 
|  | * minimum VCO rate (the latter assured that shadowed divider settings | 
|  | * are within supported range). | 
|  | */ | 
|  |  | 
|  | cfg.m = _pll_fixed_mdiv(pll_params, parent_rate); | 
|  | cfg.n = cfg.m * pll_params->vco_min / parent_rate; | 
|  |  | 
|  | while (p_tohw->pdiv) { | 
|  | if (p_tohw->pdiv == 2) { | 
|  | cfg.p = p_tohw->hw_val; | 
|  | break; | 
|  | } | 
|  | p_tohw++; | 
|  | } | 
|  |  | 
|  | if (!p_tohw->pdiv) { | 
|  | WARN_ON(1); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  |  | 
|  | pll_writel_base(0, pll); | 
|  | _update_pll_mnp(pll, &cfg); | 
|  |  | 
|  | pll_writel_misc(PLLCX_MISC_DEFAULT, pll); | 
|  | pll_writel(PLLCX_MISC1_DEFAULT, pll_params->ext_misc_reg[0], pll); | 
|  | pll_writel(PLLCX_MISC2_DEFAULT, pll_params->ext_misc_reg[1], pll); | 
|  | pll_writel(PLLCX_MISC3_DEFAULT, pll_params->ext_misc_reg[2], pll); | 
|  |  | 
|  | _pllcx_update_dynamic_coef(pll, parent_rate, cfg.n); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pllc_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | struct clk *tegra_clk_register_plle_tegra114(const char *name, | 
|  | const char *parent_name, | 
|  | void __iomem *clk_base, unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk; | 
|  | u32 val, val_aux; | 
|  |  | 
|  | pll = _tegra_init_pll(clk_base, NULL, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | /* ensure parent is set to pll_re_vco */ | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val_aux = pll_readl(pll_params->aux_reg, pll); | 
|  |  | 
|  | if (val & PLL_BASE_ENABLE) { | 
|  | if ((val_aux & PLLE_AUX_PLLRE_SEL) || | 
|  | (val_aux & PLLE_AUX_PLLP_SEL)) | 
|  | WARN(1, "pll_e enabled with unsupported parent %s\n", | 
|  | (val_aux & PLLE_AUX_PLLP_SEL) ? "pllp_out0" : | 
|  | "pll_re_vco"); | 
|  | } else { | 
|  | val_aux &= ~(PLLE_AUX_PLLRE_SEL | PLLE_AUX_PLLP_SEL); | 
|  | pll_writel(val_aux, pll_params->aux_reg, pll); | 
|  | } | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_plle_tegra114_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | struct clk * | 
|  | tegra_clk_register_pllu_tegra114(const char *name, const char *parent_name, | 
|  | void __iomem *clk_base, unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk; | 
|  |  | 
|  | pll_params->flags |= TEGRA_PLLU; | 
|  |  | 
|  | pll = _tegra_init_pll(clk_base, NULL, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pllu_tegra114_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC) || defined(CONFIG_ARCH_TEGRA_210_SOC) | 
|  | static const struct clk_ops tegra_clk_pllss_ops = { | 
|  | .is_enabled = clk_pll_is_enabled, | 
|  | .enable = clk_pll_enable, | 
|  | .disable = clk_pll_disable, | 
|  | .recalc_rate = clk_pll_recalc_rate, | 
|  | .round_rate = clk_pll_ramp_round_rate, | 
|  | .set_rate = clk_pllxc_set_rate, | 
|  | }; | 
|  |  | 
|  | struct clk *tegra_clk_register_pllss(const char *name, const char *parent_name, | 
|  | void __iomem *clk_base, unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk, *parent; | 
|  | struct tegra_clk_pll_freq_table cfg; | 
|  | unsigned long parent_rate; | 
|  | u32 val, val_iddq; | 
|  | int i; | 
|  |  | 
|  | if (!pll_params->div_nmp) | 
|  | return ERR_PTR(-EINVAL); | 
|  |  | 
|  | parent = __clk_lookup(parent_name); | 
|  | if (!parent) { | 
|  | WARN(1, "parent clk %s of %s must be registered first\n", | 
|  | parent_name, name); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  |  | 
|  | pll = _tegra_init_pll(clk_base, NULL, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val &= ~PLLSS_REF_SRC_SEL_MASK; | 
|  | pll_writel_base(val, pll); | 
|  |  | 
|  | parent_rate = clk_get_rate(parent); | 
|  |  | 
|  | pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); | 
|  |  | 
|  | /* initialize PLL to minimum rate */ | 
|  |  | 
|  | cfg.m = _pll_fixed_mdiv(pll_params, parent_rate); | 
|  | cfg.n = cfg.m * pll_params->vco_min / parent_rate; | 
|  |  | 
|  | for (i = 0; pll_params->pdiv_tohw[i].pdiv; i++) | 
|  | ; | 
|  | if (!i) { | 
|  | kfree(pll); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  |  | 
|  | cfg.p = pll_params->pdiv_tohw[i-1].hw_val; | 
|  |  | 
|  | _update_pll_mnp(pll, &cfg); | 
|  |  | 
|  | pll_writel_misc(PLLSS_MISC_DEFAULT, pll); | 
|  | pll_writel(PLLSS_CFG_DEFAULT, pll_params->ext_misc_reg[0], pll); | 
|  | pll_writel(PLLSS_CTRL1_DEFAULT, pll_params->ext_misc_reg[1], pll); | 
|  | pll_writel(PLLSS_CTRL1_DEFAULT, pll_params->ext_misc_reg[2], pll); | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val_iddq = readl_relaxed(clk_base + pll_params->iddq_reg); | 
|  | if (val & PLL_BASE_ENABLE) { | 
|  | if (val_iddq & BIT(pll_params->iddq_bit_idx)) { | 
|  | WARN(1, "%s is on but IDDQ set\n", name); | 
|  | kfree(pll); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  | } else { | 
|  | val_iddq |= BIT(pll_params->iddq_bit_idx); | 
|  | writel_relaxed(val_iddq, clk_base + pll_params->iddq_reg); | 
|  | } | 
|  |  | 
|  | val &= ~PLLSS_LOCK_OVERRIDE; | 
|  | pll_writel_base(val, pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pllss_ops); | 
|  |  | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | #if defined(CONFIG_ARCH_TEGRA_210_SOC) | 
|  | struct clk *tegra_clk_register_pllre_tegra210(const char *name, | 
|  | const char *parent_name, void __iomem *clk_base, | 
|  | void __iomem *pmc, unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock, unsigned long parent_rate) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk; | 
|  |  | 
|  | pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); | 
|  |  | 
|  | if (pll_params->adjust_vco) | 
|  | pll_params->vco_min = pll_params->adjust_vco(pll_params, | 
|  | parent_rate); | 
|  |  | 
|  | pll = _tegra_init_pll(clk_base, pmc, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pll_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | static int clk_plle_tegra210_enable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | struct tegra_clk_pll_freq_table sel; | 
|  | u32 val; | 
|  | int ret = 0; | 
|  | unsigned long flags = 0; | 
|  | unsigned long input_rate = clk_hw_get_rate(clk_hw_get_parent(hw)); | 
|  |  | 
|  | if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate)) | 
|  | return -EINVAL; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | val = pll_readl(pll->params->aux_reg, pll); | 
|  | if (val & PLLE_AUX_SEQ_ENABLE) | 
|  | goto out; | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val &= ~BIT(30); /* Disable lock override */ | 
|  | pll_writel_base(val, pll); | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val |= PLLE_MISC_LOCK_ENABLE; | 
|  | val |= PLLE_MISC_IDDQ_SW_CTRL; | 
|  | val &= ~PLLE_MISC_IDDQ_SW_VALUE; | 
|  | val |= PLLE_MISC_PLLE_PTS; | 
|  | val &= ~(PLLE_MISC_VREG_BG_CTRL_MASK | PLLE_MISC_VREG_CTRL_MASK); | 
|  | pll_writel_misc(val, pll); | 
|  | udelay(5); | 
|  |  | 
|  | val = pll_readl(PLLE_SS_CTRL, pll); | 
|  | val |= PLLE_SS_DISABLE; | 
|  | pll_writel(val, PLLE_SS_CTRL, pll); | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val &= ~(divp_mask_shifted(pll) | divn_mask_shifted(pll) | | 
|  | divm_mask_shifted(pll)); | 
|  | val &= ~(PLLE_BASE_DIVCML_MASK << PLLE_BASE_DIVCML_SHIFT); | 
|  | val |= sel.m << divm_shift(pll); | 
|  | val |= sel.n << divn_shift(pll); | 
|  | val |= sel.cpcon << PLLE_BASE_DIVCML_SHIFT; | 
|  | pll_writel_base(val, pll); | 
|  | udelay(1); | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val |= PLLE_BASE_ENABLE; | 
|  | pll_writel_base(val, pll); | 
|  |  | 
|  | ret = clk_pll_wait_for_lock(pll); | 
|  |  | 
|  | if (ret < 0) | 
|  | goto out; | 
|  |  | 
|  | val = pll_readl(PLLE_SS_CTRL, pll); | 
|  | val &= ~(PLLE_SS_CNTL_CENTER | PLLE_SS_CNTL_INVERT); | 
|  | val &= ~PLLE_SS_COEFFICIENTS_MASK; | 
|  | val |= PLLE_SS_COEFFICIENTS_VAL_TEGRA210; | 
|  | pll_writel(val, PLLE_SS_CTRL, pll); | 
|  | val &= ~(PLLE_SS_CNTL_SSC_BYP | PLLE_SS_CNTL_BYPASS_SS); | 
|  | pll_writel(val, PLLE_SS_CTRL, pll); | 
|  | udelay(1); | 
|  | val &= ~PLLE_SS_CNTL_INTERP_RESET; | 
|  | pll_writel(val, PLLE_SS_CTRL, pll); | 
|  | udelay(1); | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val &= ~PLLE_MISC_IDDQ_SW_CTRL; | 
|  | pll_writel_misc(val, pll); | 
|  |  | 
|  | val = pll_readl(pll->params->aux_reg, pll); | 
|  | val |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SS_SEQ_INCLUDE); | 
|  | val &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL); | 
|  | pll_writel(val, pll->params->aux_reg, pll); | 
|  | udelay(1); | 
|  | val |= PLLE_AUX_SEQ_ENABLE; | 
|  | pll_writel(val, pll->params->aux_reg, pll); | 
|  |  | 
|  | out: | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static void clk_plle_tegra210_disable(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | unsigned long flags = 0; | 
|  | u32 val; | 
|  |  | 
|  | if (pll->lock) | 
|  | spin_lock_irqsave(pll->lock, flags); | 
|  |  | 
|  | /* If PLLE HW sequencer is enabled, SW should not disable PLLE */ | 
|  | val = pll_readl(pll->params->aux_reg, pll); | 
|  | if (val & PLLE_AUX_SEQ_ENABLE) | 
|  | goto out; | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val &= ~PLLE_BASE_ENABLE; | 
|  | pll_writel_base(val, pll); | 
|  |  | 
|  | val = pll_readl(pll->params->aux_reg, pll); | 
|  | val |= PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL; | 
|  | pll_writel(val, pll->params->aux_reg, pll); | 
|  |  | 
|  | val = pll_readl_misc(pll); | 
|  | val |= PLLE_MISC_IDDQ_SW_CTRL | PLLE_MISC_IDDQ_SW_VALUE; | 
|  | pll_writel_misc(val, pll); | 
|  | udelay(1); | 
|  |  | 
|  | out: | 
|  | if (pll->lock) | 
|  | spin_unlock_irqrestore(pll->lock, flags); | 
|  | } | 
|  |  | 
|  | static int clk_plle_tegra210_is_enabled(struct clk_hw *hw) | 
|  | { | 
|  | struct tegra_clk_pll *pll = to_clk_pll(hw); | 
|  | u32 val; | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  |  | 
|  | return val & PLLE_BASE_ENABLE ? 1 : 0; | 
|  | } | 
|  |  | 
|  | static const struct clk_ops tegra_clk_plle_tegra210_ops = { | 
|  | .is_enabled =  clk_plle_tegra210_is_enabled, | 
|  | .enable = clk_plle_tegra210_enable, | 
|  | .disable = clk_plle_tegra210_disable, | 
|  | .recalc_rate = clk_pll_recalc_rate, | 
|  | }; | 
|  |  | 
|  | struct clk *tegra_clk_register_plle_tegra210(const char *name, | 
|  | const char *parent_name, | 
|  | void __iomem *clk_base, unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk; | 
|  | u32 val, val_aux; | 
|  |  | 
|  | pll = _tegra_init_pll(clk_base, NULL, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | /* ensure parent is set to pll_re_vco */ | 
|  |  | 
|  | val = pll_readl_base(pll); | 
|  | val_aux = pll_readl(pll_params->aux_reg, pll); | 
|  |  | 
|  | if (val & PLLE_BASE_ENABLE) { | 
|  | if ((val_aux & PLLE_AUX_PLLRE_SEL) || | 
|  | (val_aux & PLLE_AUX_PLLP_SEL)) | 
|  | WARN(1, "pll_e enabled with unsupported parent %s\n", | 
|  | (val_aux & PLLE_AUX_PLLP_SEL) ? "pllp_out0" : | 
|  | "pll_re_vco"); | 
|  | } else { | 
|  | val_aux &= ~(PLLE_AUX_PLLRE_SEL | PLLE_AUX_PLLP_SEL); | 
|  | pll_writel(val_aux, pll_params->aux_reg, pll); | 
|  | } | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_plle_tegra210_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | struct clk *tegra_clk_register_pllc_tegra210(const char *name, | 
|  | const char *parent_name, void __iomem *clk_base, | 
|  | void __iomem *pmc, unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct clk *parent, *clk; | 
|  | const struct pdiv_map *p_tohw = pll_params->pdiv_tohw; | 
|  | struct tegra_clk_pll *pll; | 
|  | unsigned long parent_rate; | 
|  |  | 
|  | if (!p_tohw) | 
|  | return ERR_PTR(-EINVAL); | 
|  |  | 
|  | parent = __clk_lookup(parent_name); | 
|  | if (!parent) { | 
|  | WARN(1, "parent clk %s of %s must be registered first\n", | 
|  | name, parent_name); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  |  | 
|  | parent_rate = clk_get_rate(parent); | 
|  |  | 
|  | pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); | 
|  |  | 
|  | if (pll_params->adjust_vco) | 
|  | pll_params->vco_min = pll_params->adjust_vco(pll_params, | 
|  | parent_rate); | 
|  |  | 
|  | pll_params->flags |= TEGRA_PLL_BYPASS; | 
|  | pll = _tegra_init_pll(clk_base, pmc, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pll_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | struct clk *tegra_clk_register_pllss_tegra210(const char *name, | 
|  | const char *parent_name, void __iomem *clk_base, | 
|  | unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk, *parent; | 
|  | unsigned long parent_rate; | 
|  | u32 val; | 
|  |  | 
|  | if (!pll_params->div_nmp) | 
|  | return ERR_PTR(-EINVAL); | 
|  |  | 
|  | parent = __clk_lookup(parent_name); | 
|  | if (!parent) { | 
|  | WARN(1, "parent clk %s of %s must be registered first\n", | 
|  | name, parent_name); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  |  | 
|  | val = readl_relaxed(clk_base + pll_params->base_reg); | 
|  | if (val & PLLSS_REF_SRC_SEL_MASK) { | 
|  | WARN(1, "not supported reference clock for %s\n", name); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  |  | 
|  | parent_rate = clk_get_rate(parent); | 
|  |  | 
|  | pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); | 
|  |  | 
|  | if (pll_params->adjust_vco) | 
|  | pll_params->vco_min = pll_params->adjust_vco(pll_params, | 
|  | parent_rate); | 
|  |  | 
|  | pll_params->flags |= TEGRA_PLL_BYPASS; | 
|  | pll = _tegra_init_pll(clk_base, NULL, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pll_ops); | 
|  |  | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | struct clk *tegra_clk_register_pllmb(const char *name, const char *parent_name, | 
|  | void __iomem *clk_base, void __iomem *pmc, | 
|  | unsigned long flags, | 
|  | struct tegra_clk_pll_params *pll_params, | 
|  | spinlock_t *lock) | 
|  | { | 
|  | struct tegra_clk_pll *pll; | 
|  | struct clk *clk, *parent; | 
|  | unsigned long parent_rate; | 
|  |  | 
|  | if (!pll_params->pdiv_tohw) | 
|  | return ERR_PTR(-EINVAL); | 
|  |  | 
|  | parent = __clk_lookup(parent_name); | 
|  | if (!parent) { | 
|  | WARN(1, "parent clk %s of %s must be registered first\n", | 
|  | parent_name, name); | 
|  | return ERR_PTR(-EINVAL); | 
|  | } | 
|  |  | 
|  | parent_rate = clk_get_rate(parent); | 
|  |  | 
|  | pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); | 
|  |  | 
|  | if (pll_params->adjust_vco) | 
|  | pll_params->vco_min = pll_params->adjust_vco(pll_params, | 
|  | parent_rate); | 
|  |  | 
|  | pll_params->flags |= TEGRA_PLL_BYPASS; | 
|  | pll_params->flags |= TEGRA_PLLMB; | 
|  | pll = _tegra_init_pll(clk_base, pmc, pll_params, lock); | 
|  | if (IS_ERR(pll)) | 
|  | return ERR_CAST(pll); | 
|  |  | 
|  | clk = _tegra_clk_register_pll(pll, name, parent_name, flags, | 
|  | &tegra_clk_pll_ops); | 
|  | if (IS_ERR(clk)) | 
|  | kfree(pll); | 
|  |  | 
|  | return clk; | 
|  | } | 
|  |  | 
|  | #endif |