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@@ -1,6 +1,6 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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- * Actions Semi S900 clock driver
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+ * Common clock driver for Actions Semi SoCs.
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*
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* Copyright (C) 2015 Actions Semi Co., Ltd.
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* Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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@@ -8,20 +8,25 @@
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#include <common.h>
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#include <dm.h>
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-#include <asm/arch-owl/clk_s900.h>
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-#include <asm/arch-owl/regs_s900.h>
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+#include "clk_owl.h"
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#include <asm/io.h>
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-
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+#if defined(CONFIG_MACH_S900)
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+#include <asm/arch-owl/regs_s900.h>
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#include <dt-bindings/clock/actions,s900-cmu.h>
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+#elif defined(CONFIG_MACH_S700)
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+#include <asm/arch-owl/regs_s700.h>
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+#include <dt-bindings/clock/actions,s700-cmu.h>
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+#endif
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void owl_clk_init(struct owl_clk_priv *priv)
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{
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u32 bus_clk = 0, core_pll, dev_pll;
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+#if defined(CONFIG_MACH_S900)
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/* Enable ASSIST_PLL */
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setbits_le32(priv->base + CMU_ASSISTPLL, BIT(0));
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-
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udelay(PLL_STABILITY_WAIT_US);
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+#endif
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/* Source HOSC to DEV_CLK */
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clrbits_le32(priv->base + CMU_DEVPLL, CMU_DEVPLL_CLK);
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@@ -58,31 +63,30 @@ void owl_clk_init(struct owl_clk_priv *priv)
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udelay(PLL_STABILITY_WAIT_US);
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}
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-void owl_uart_clk_enable(struct owl_clk_priv *priv)
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-{
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- /* Source HOSC for UART5 interface */
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- clrbits_le32(priv->base + CMU_UART5CLK, CMU_UARTCLK_SRC_DEVPLL);
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-
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- /* Enable UART5 interface clock */
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- setbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART5);
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-}
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-
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-void owl_uart_clk_disable(struct owl_clk_priv *priv)
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-{
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- /* Disable UART5 interface clock */
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- clrbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART5);
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-}
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-
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int owl_clk_enable(struct clk *clk)
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{
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struct owl_clk_priv *priv = dev_get_priv(clk->dev);
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+ enum owl_soc model = dev_get_driver_data(clk->dev);
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switch (clk->id) {
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case CLK_UART5:
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- owl_uart_clk_enable(priv);
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+ if (model != S900)
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+ return -EINVAL;
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+ /* Source HOSC for UART5 interface */
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+ clrbits_le32(priv->base + CMU_UART5CLK, CMU_UARTCLK_SRC_DEVPLL);
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+ /* Enable UART5 interface clock */
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+ setbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART5);
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+ break;
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+ case CLK_UART3:
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+ if (model != S700)
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+ return -EINVAL;
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+ /* Source HOSC for UART3 interface */
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+ clrbits_le32(priv->base + CMU_UART3CLK, CMU_UARTCLK_SRC_DEVPLL);
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+ /* Enable UART3 interface clock */
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+ setbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART3);
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break;
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default:
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- return 0;
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+ return -EINVAL;
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}
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return 0;
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@@ -91,13 +95,23 @@ int owl_clk_enable(struct clk *clk)
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int owl_clk_disable(struct clk *clk)
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{
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struct owl_clk_priv *priv = dev_get_priv(clk->dev);
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+ enum owl_soc model = dev_get_driver_data(clk->dev);
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switch (clk->id) {
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case CLK_UART5:
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- owl_uart_clk_disable(priv);
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+ if (model != S900)
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+ return -EINVAL;
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+ /* Disable UART5 interface clock */
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+ clrbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART5);
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+ break;
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+ case CLK_UART3:
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+ if (model != S700)
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+ return -EINVAL;
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+ /* Disable UART3 interface clock */
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+ clrbits_le32(priv->base + CMU_DEVCLKEN1, CMU_DEVCLKEN1_UART3);
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break;
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default:
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- return 0;
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+ return -EINVAL;
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}
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return 0;
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@@ -117,18 +131,22 @@ static int owl_clk_probe(struct udevice *dev)
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return 0;
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}
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-static struct clk_ops owl_clk_ops = {
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+static const struct clk_ops owl_clk_ops = {
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.enable = owl_clk_enable,
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.disable = owl_clk_disable,
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};
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static const struct udevice_id owl_clk_ids[] = {
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- { .compatible = "actions,s900-cmu" },
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+#if defined(CONFIG_MACH_S900)
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+ { .compatible = "actions,s900-cmu", .data = S900 },
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+#elif defined(CONFIG_MACH_S700)
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+ { .compatible = "actions,s700-cmu", .data = S700 },
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+#endif
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{ }
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};
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U_BOOT_DRIVER(clk_owl) = {
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- .name = "clk_s900",
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+ .name = "clk_owl",
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.id = UCLASS_CLK,
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.of_match = owl_clk_ids,
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.ops = &owl_clk_ops,
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