[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/clk/clk-oxnas.c b/src/kernel/linux/v4.14/drivers/clk/clk-oxnas.c
new file mode 100644
index 0000000..e51e002
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/clk/clk-oxnas.c
@@ -0,0 +1,264 @@
+/*
+ * Copyright (C) 2010 Broadcom
+ * Copyright (C) 2012 Stephen Warren
+ * Copyright (C) 2016 Neil Armstrong <narmstrong@baylibre.com>
+ *
+ * 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/clk-provider.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/stringify.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
+
+#include <dt-bindings/clock/oxsemi,ox810se.h>
+#include <dt-bindings/clock/oxsemi,ox820.h>
+
+/* Standard regmap gate clocks */
+struct clk_oxnas_gate {
+ struct clk_hw hw;
+ unsigned int bit;
+ struct regmap *regmap;
+};
+
+struct oxnas_stdclk_data {
+ struct clk_hw_onecell_data *onecell_data;
+ struct clk_oxnas_gate **gates;
+ unsigned int ngates;
+ struct clk_oxnas_pll **plls;
+ unsigned int nplls;
+};
+
+/* Regmap offsets */
+#define CLK_STAT_REGOFFSET 0x24
+#define CLK_SET_REGOFFSET 0x2c
+#define CLK_CLR_REGOFFSET 0x30
+
+static inline struct clk_oxnas_gate *to_clk_oxnas_gate(struct clk_hw *hw)
+{
+ return container_of(hw, struct clk_oxnas_gate, hw);
+}
+
+static int oxnas_clk_gate_is_enabled(struct clk_hw *hw)
+{
+ struct clk_oxnas_gate *std = to_clk_oxnas_gate(hw);
+ int ret;
+ unsigned int val;
+
+ ret = regmap_read(std->regmap, CLK_STAT_REGOFFSET, &val);
+ if (ret < 0)
+ return ret;
+
+ return val & BIT(std->bit);
+}
+
+static int oxnas_clk_gate_enable(struct clk_hw *hw)
+{
+ struct clk_oxnas_gate *std = to_clk_oxnas_gate(hw);
+
+ regmap_write(std->regmap, CLK_SET_REGOFFSET, BIT(std->bit));
+
+ return 0;
+}
+
+static void oxnas_clk_gate_disable(struct clk_hw *hw)
+{
+ struct clk_oxnas_gate *std = to_clk_oxnas_gate(hw);
+
+ regmap_write(std->regmap, CLK_CLR_REGOFFSET, BIT(std->bit));
+}
+
+static const struct clk_ops oxnas_clk_gate_ops = {
+ .enable = oxnas_clk_gate_enable,
+ .disable = oxnas_clk_gate_disable,
+ .is_enabled = oxnas_clk_gate_is_enabled,
+};
+
+static const char *const osc_parents[] = {
+ "oscillator",
+};
+
+static const char *const eth_parents[] = {
+ "gmacclk",
+};
+
+#define OXNAS_GATE(_name, _bit, _parents) \
+struct clk_oxnas_gate _name = { \
+ .bit = (_bit), \
+ .hw.init = &(struct clk_init_data) { \
+ .name = #_name, \
+ .ops = &oxnas_clk_gate_ops, \
+ .parent_names = _parents, \
+ .num_parents = ARRAY_SIZE(_parents), \
+ .flags = (CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED), \
+ }, \
+}
+
+static OXNAS_GATE(ox810se_leon, 0, osc_parents);
+static OXNAS_GATE(ox810se_dma_sgdma, 1, osc_parents);
+static OXNAS_GATE(ox810se_cipher, 2, osc_parents);
+static OXNAS_GATE(ox810se_sata, 4, osc_parents);
+static OXNAS_GATE(ox810se_audio, 5, osc_parents);
+static OXNAS_GATE(ox810se_usbmph, 6, osc_parents);
+static OXNAS_GATE(ox810se_etha, 7, eth_parents);
+static OXNAS_GATE(ox810se_pciea, 8, osc_parents);
+static OXNAS_GATE(ox810se_nand, 9, osc_parents);
+
+static struct clk_oxnas_gate *ox810se_gates[] = {
+ &ox810se_leon,
+ &ox810se_dma_sgdma,
+ &ox810se_cipher,
+ &ox810se_sata,
+ &ox810se_audio,
+ &ox810se_usbmph,
+ &ox810se_etha,
+ &ox810se_pciea,
+ &ox810se_nand,
+};
+
+static OXNAS_GATE(ox820_leon, 0, osc_parents);
+static OXNAS_GATE(ox820_dma_sgdma, 1, osc_parents);
+static OXNAS_GATE(ox820_cipher, 2, osc_parents);
+static OXNAS_GATE(ox820_sd, 3, osc_parents);
+static OXNAS_GATE(ox820_sata, 4, osc_parents);
+static OXNAS_GATE(ox820_audio, 5, osc_parents);
+static OXNAS_GATE(ox820_usbmph, 6, osc_parents);
+static OXNAS_GATE(ox820_etha, 7, eth_parents);
+static OXNAS_GATE(ox820_pciea, 8, osc_parents);
+static OXNAS_GATE(ox820_nand, 9, osc_parents);
+static OXNAS_GATE(ox820_ethb, 10, eth_parents);
+static OXNAS_GATE(ox820_pcieb, 11, osc_parents);
+static OXNAS_GATE(ox820_ref600, 12, osc_parents);
+static OXNAS_GATE(ox820_usbdev, 13, osc_parents);
+
+static struct clk_oxnas_gate *ox820_gates[] = {
+ &ox820_leon,
+ &ox820_dma_sgdma,
+ &ox820_cipher,
+ &ox820_sd,
+ &ox820_sata,
+ &ox820_audio,
+ &ox820_usbmph,
+ &ox820_etha,
+ &ox820_pciea,
+ &ox820_nand,
+ &ox820_etha,
+ &ox820_pciea,
+ &ox820_ref600,
+ &ox820_usbdev,
+};
+
+static struct clk_hw_onecell_data ox810se_hw_onecell_data = {
+ .hws = {
+ [CLK_810_LEON] = &ox810se_leon.hw,
+ [CLK_810_DMA_SGDMA] = &ox810se_dma_sgdma.hw,
+ [CLK_810_CIPHER] = &ox810se_cipher.hw,
+ [CLK_810_SATA] = &ox810se_sata.hw,
+ [CLK_810_AUDIO] = &ox810se_audio.hw,
+ [CLK_810_USBMPH] = &ox810se_usbmph.hw,
+ [CLK_810_ETHA] = &ox810se_etha.hw,
+ [CLK_810_PCIEA] = &ox810se_pciea.hw,
+ [CLK_810_NAND] = &ox810se_nand.hw,
+ },
+ .num = ARRAY_SIZE(ox810se_gates),
+};
+
+static struct clk_hw_onecell_data ox820_hw_onecell_data = {
+ .hws = {
+ [CLK_820_LEON] = &ox820_leon.hw,
+ [CLK_820_DMA_SGDMA] = &ox820_dma_sgdma.hw,
+ [CLK_820_CIPHER] = &ox820_cipher.hw,
+ [CLK_820_SD] = &ox820_sd.hw,
+ [CLK_820_SATA] = &ox820_sata.hw,
+ [CLK_820_AUDIO] = &ox820_audio.hw,
+ [CLK_820_USBMPH] = &ox820_usbmph.hw,
+ [CLK_820_ETHA] = &ox820_etha.hw,
+ [CLK_820_PCIEA] = &ox820_pciea.hw,
+ [CLK_820_NAND] = &ox820_nand.hw,
+ [CLK_820_ETHB] = &ox820_ethb.hw,
+ [CLK_820_PCIEB] = &ox820_pcieb.hw,
+ [CLK_820_REF600] = &ox820_ref600.hw,
+ [CLK_820_USBDEV] = &ox820_usbdev.hw,
+ },
+ .num = ARRAY_SIZE(ox820_gates),
+};
+
+static struct oxnas_stdclk_data ox810se_stdclk_data = {
+ .onecell_data = &ox810se_hw_onecell_data,
+ .gates = ox810se_gates,
+ .ngates = ARRAY_SIZE(ox810se_gates),
+};
+
+static struct oxnas_stdclk_data ox820_stdclk_data = {
+ .onecell_data = &ox820_hw_onecell_data,
+ .gates = ox820_gates,
+ .ngates = ARRAY_SIZE(ox820_gates),
+};
+
+static const struct of_device_id oxnas_stdclk_dt_ids[] = {
+ { .compatible = "oxsemi,ox810se-stdclk", &ox810se_stdclk_data },
+ { .compatible = "oxsemi,ox820-stdclk", &ox820_stdclk_data },
+ { }
+};
+
+static int oxnas_stdclk_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ const struct oxnas_stdclk_data *data;
+ const struct of_device_id *id;
+ struct regmap *regmap;
+ int ret;
+ int i;
+
+ id = of_match_device(oxnas_stdclk_dt_ids, &pdev->dev);
+ if (!id)
+ return -ENODEV;
+ data = id->data;
+
+ regmap = syscon_node_to_regmap(of_get_parent(np));
+ if (IS_ERR(regmap)) {
+ dev_err(&pdev->dev, "failed to have parent regmap\n");
+ return PTR_ERR(regmap);
+ }
+
+ for (i = 0 ; i < data->ngates ; ++i)
+ data->gates[i]->regmap = regmap;
+
+ for (i = 0; i < data->onecell_data->num; i++) {
+ if (!data->onecell_data->hws[i])
+ continue;
+
+ ret = devm_clk_hw_register(&pdev->dev,
+ data->onecell_data->hws[i]);
+ if (ret)
+ return ret;
+ }
+
+ return of_clk_add_hw_provider(np, of_clk_hw_onecell_get,
+ data->onecell_data);
+}
+
+static struct platform_driver oxnas_stdclk_driver = {
+ .probe = oxnas_stdclk_probe,
+ .driver = {
+ .name = "oxnas-stdclk",
+ .suppress_bind_attrs = true,
+ .of_match_table = oxnas_stdclk_dt_ids,
+ },
+};
+builtin_platform_driver(oxnas_stdclk_driver);