| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * PSC clock descriptions for TI DaVinci DM365 |
| * |
| * Copyright (C) 2018 David Lechner <david@lechnology.com> |
| */ |
| |
| #include <linux/clk-provider.h> |
| #include <linux/clk/davinci.h> |
| #include <linux/clk.h> |
| #include <linux/clkdev.h> |
| #include <linux/init.h> |
| #include <linux/kernel.h> |
| #include <linux/types.h> |
| |
| #include "psc.h" |
| |
| LPSC_CLKDEV1(vpss_slave_clkdev, "slave", "vpss"); |
| LPSC_CLKDEV1(spi1_clkdev, NULL, "spi_davinci.1"); |
| LPSC_CLKDEV1(mmcsd1_clkdev, NULL, "da830-mmc.1"); |
| LPSC_CLKDEV1(asp0_clkdev, NULL, "davinci-mcbsp"); |
| LPSC_CLKDEV1(usb_clkdev, "usb", NULL); |
| LPSC_CLKDEV1(spi2_clkdev, NULL, "spi_davinci.2"); |
| LPSC_CLKDEV2(aemif_clkdev, "aemif", NULL, |
| NULL, "ti-aemif"); |
| LPSC_CLKDEV1(mmcsd0_clkdev, NULL, "da830-mmc.0"); |
| LPSC_CLKDEV1(i2c_clkdev, NULL, "i2c_davinci.1"); |
| LPSC_CLKDEV1(uart0_clkdev, NULL, "serial8250.0"); |
| LPSC_CLKDEV1(uart1_clkdev, NULL, "serial8250.1"); |
| LPSC_CLKDEV1(spi0_clkdev, NULL, "spi_davinci.0"); |
| /* REVISIT: gpio-davinci.c should be modified to drop con_id */ |
| LPSC_CLKDEV1(gpio_clkdev, "gpio", NULL); |
| LPSC_CLKDEV1(timer0_clkdev, "timer0", NULL); |
| LPSC_CLKDEV1(timer2_clkdev, NULL, "davinci-wdt"); |
| LPSC_CLKDEV1(spi3_clkdev, NULL, "spi_davinci.3"); |
| LPSC_CLKDEV1(spi4_clkdev, NULL, "spi_davinci.4"); |
| LPSC_CLKDEV2(emac_clkdev, NULL, "davinci_emac.1", |
| "fck", "davinci_mdio.0"); |
| LPSC_CLKDEV1(voice_codec_clkdev, NULL, "davinci_voicecodec"); |
| LPSC_CLKDEV1(vpss_dac_clkdev, "vpss_dac", NULL); |
| LPSC_CLKDEV1(vpss_master_clkdev, "master", "vpss"); |
| |
| static const struct davinci_lpsc_clk_info dm365_psc_info[] = { |
| LPSC(1, 0, vpss_slave, pll1_sysclk5, vpss_slave_clkdev, 0), |
| LPSC(5, 0, timer3, pll1_auxclk, NULL, 0), |
| LPSC(6, 0, spi1, pll1_sysclk4, spi1_clkdev, 0), |
| LPSC(7, 0, mmcsd1, pll1_sysclk4, mmcsd1_clkdev, 0), |
| LPSC(8, 0, asp0, pll1_sysclk4, asp0_clkdev, 0), |
| LPSC(9, 0, usb, pll1_auxclk, usb_clkdev, 0), |
| LPSC(10, 0, pwm3, pll1_auxclk, NULL, 0), |
| LPSC(11, 0, spi2, pll1_sysclk4, spi2_clkdev, 0), |
| LPSC(12, 0, rto, pll1_sysclk4, NULL, 0), |
| LPSC(14, 0, aemif, pll1_sysclk4, aemif_clkdev, 0), |
| LPSC(15, 0, mmcsd0, pll1_sysclk8, mmcsd0_clkdev, 0), |
| LPSC(18, 0, i2c, pll1_auxclk, i2c_clkdev, 0), |
| LPSC(19, 0, uart0, pll1_auxclk, uart0_clkdev, 0), |
| LPSC(20, 0, uart1, pll1_sysclk4, uart1_clkdev, 0), |
| LPSC(22, 0, spi0, pll1_sysclk4, spi0_clkdev, 0), |
| LPSC(23, 0, pwm0, pll1_auxclk, NULL, 0), |
| LPSC(24, 0, pwm1, pll1_auxclk, NULL, 0), |
| LPSC(25, 0, pwm2, pll1_auxclk, NULL, 0), |
| LPSC(26, 0, gpio, pll1_sysclk4, gpio_clkdev, 0), |
| LPSC(27, 0, timer0, pll1_auxclk, timer0_clkdev, LPSC_ALWAYS_ENABLED), |
| LPSC(28, 0, timer1, pll1_auxclk, NULL, 0), |
| /* REVISIT: why can't this be disabled? */ |
| LPSC(29, 0, timer2, pll1_auxclk, timer2_clkdev, LPSC_ALWAYS_ENABLED), |
| LPSC(31, 0, arm, pll2_sysclk2, NULL, LPSC_ALWAYS_ENABLED), |
| LPSC(38, 0, spi3, pll1_sysclk4, spi3_clkdev, 0), |
| LPSC(39, 0, spi4, pll1_auxclk, spi4_clkdev, 0), |
| LPSC(40, 0, emac, pll1_sysclk4, emac_clkdev, 0), |
| /* |
| * The TRM (ARM Subsystem User's Guide) shows two clocks input into |
| * voice codec module (PLL2 SYSCLK4 with a DIV2 and PLL1 SYSCLK4). Its |
| * not fully clear from documentation which clock should be considered |
| * as parent for PSC. The clock chosen here is to maintain |
| * compatibility with existing code in arch/arm/mach-davinci/dm365.c |
| */ |
| LPSC(44, 0, voice_codec, pll2_sysclk4, voice_codec_clkdev, 0), |
| /* |
| * Its not fully clear from TRM (ARM Subsystem User's Guide) as to what |
| * the parent of VPSS DAC LPSC should actually be. PLL1 SYSCLK3 feeds |
| * into HDVICP and MJCP. The clock chosen here is to remain compatible |
| * with code existing in arch/arm/mach-davinci/dm365.c |
| */ |
| LPSC(46, 0, vpss_dac, pll1_sysclk3, vpss_dac_clkdev, 0), |
| LPSC(47, 0, vpss_master, pll1_sysclk5, vpss_master_clkdev, 0), |
| LPSC(50, 0, mjcp, pll1_sysclk3, NULL, 0), |
| { } |
| }; |
| |
| int dm365_psc_init(struct device *dev, void __iomem *base) |
| { |
| return davinci_psc_register_clocks(dev, dm365_psc_info, 52, base); |
| } |
| |
| static struct clk_bulk_data dm365_psc_parent_clks[] = { |
| { .id = "pll1_sysclk1" }, |
| { .id = "pll1_sysclk3" }, |
| { .id = "pll1_sysclk4" }, |
| { .id = "pll1_sysclk5" }, |
| { .id = "pll1_sysclk8" }, |
| { .id = "pll2_sysclk2" }, |
| { .id = "pll2_sysclk4" }, |
| { .id = "pll1_auxclk" }, |
| }; |
| |
| const struct davinci_psc_init_data dm365_psc_init_data = { |
| .parent_clks = dm365_psc_parent_clks, |
| .num_parent_clks = ARRAY_SIZE(dm365_psc_parent_clks), |
| .psc_init = &dm365_psc_init, |
| }; |