clk: zx: add clock support to zx296702
It adds a clock driver for zx296702 SoC to register the clock tree to Common Clock Framework. All the clocks of bus topology and some the peripheral clocks are ready with this commit. Some missing leaf clocks for peripherals will be added later when needed. Signed-off-by: Jun Nie <jun.nie@linaro.org> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Kevin Hilman <khilman@linaro.org>
This commit is contained in:
Jun Nie
Kevin Hilman
parent
f3519dc6f0
commit
5a46580812
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@ -72,4 +72,5 @@ obj-$(CONFIG_ARCH_OMAP2PLUS) += ti/
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obj-$(CONFIG_ARCH_U8500) += ux500/
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obj-$(CONFIG_COMMON_CLK_VERSATILE) += versatile/
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obj-$(CONFIG_X86) += x86/
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obj-$(CONFIG_ARCH_ZX) += zte/
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obj-$(CONFIG_ARCH_ZYNQ) += zynq/
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@ -0,0 +1,2 @@
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obj-y := clk-pll.o
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obj-$(CONFIG_SOC_ZX296702) += clk-zx296702.o
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@ -0,0 +1,172 @@
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/*
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* Copyright 2014 Linaro Ltd.
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* Copyright (C) 2014 ZTE Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/clk-provider.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/iopoll.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include "clk.h"
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#define to_clk_zx_pll(_hw) container_of(_hw, struct clk_zx_pll, hw)
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#define CFG0_CFG1_OFFSET 4
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#define LOCK_FLAG BIT(30)
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#define POWER_DOWN BIT(31)
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static int rate_to_idx(struct clk_zx_pll *zx_pll, unsigned long rate)
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{
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const struct zx_pll_config *config = zx_pll->lookup_table;
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int i;
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for (i = 0; i < zx_pll->count; i++) {
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if (config[i].rate > rate)
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return i > 0 ? i - 1 : 0;
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if (config[i].rate == rate)
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return i;
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}
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return i - 1;
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}
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static int hw_to_idx(struct clk_zx_pll *zx_pll)
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{
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const struct zx_pll_config *config = zx_pll->lookup_table;
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u32 hw_cfg0, hw_cfg1;
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int i;
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hw_cfg0 = readl_relaxed(zx_pll->reg_base);
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hw_cfg1 = readl_relaxed(zx_pll->reg_base + CFG0_CFG1_OFFSET);
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/* For matching the value in lookup table */
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hw_cfg0 &= ~LOCK_FLAG;
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hw_cfg0 |= POWER_DOWN;
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for (i = 0; i < zx_pll->count; i++) {
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if (hw_cfg0 == config[i].cfg0 && hw_cfg1 == config[i].cfg1)
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return i;
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}
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return -EINVAL;
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}
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static unsigned long zx_pll_recalc_rate(struct clk_hw *hw,
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unsigned long parent_rate)
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{
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struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
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int idx;
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idx = hw_to_idx(zx_pll);
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if (unlikely(idx == -EINVAL))
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return 0;
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return zx_pll->lookup_table[idx].rate;
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}
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static long zx_pll_round_rate(struct clk_hw *hw, unsigned long rate,
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unsigned long *prate)
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{
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struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
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int idx;
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idx = rate_to_idx(zx_pll, rate);
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return zx_pll->lookup_table[idx].rate;
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}
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static int zx_pll_set_rate(struct clk_hw *hw, unsigned long rate,
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unsigned long parent_rate)
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{
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/* Assume current cpu is not running on current PLL */
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struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
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const struct zx_pll_config *config;
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int idx;
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idx = rate_to_idx(zx_pll, rate);
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config = &zx_pll->lookup_table[idx];
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writel_relaxed(config->cfg0, zx_pll->reg_base);
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writel_relaxed(config->cfg1, zx_pll->reg_base + CFG0_CFG1_OFFSET);
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return 0;
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}
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static int zx_pll_enable(struct clk_hw *hw)
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{
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struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
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u32 reg;
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reg = readl_relaxed(zx_pll->reg_base);
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writel_relaxed(reg & ~POWER_DOWN, zx_pll->reg_base);
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return readl_relaxed_poll_timeout(zx_pll->reg_base, reg,
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reg & LOCK_FLAG, 0, 100);
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}
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static void zx_pll_disable(struct clk_hw *hw)
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{
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struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
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u32 reg;
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reg = readl_relaxed(zx_pll->reg_base);
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writel_relaxed(reg | POWER_DOWN, zx_pll->reg_base);
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}
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static int zx_pll_is_enabled(struct clk_hw *hw)
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{
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struct clk_zx_pll *zx_pll = to_clk_zx_pll(hw);
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u32 reg;
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reg = readl_relaxed(zx_pll->reg_base);
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return !(reg & POWER_DOWN);
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}
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static const struct clk_ops zx_pll_ops = {
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.recalc_rate = zx_pll_recalc_rate,
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.round_rate = zx_pll_round_rate,
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.set_rate = zx_pll_set_rate,
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.enable = zx_pll_enable,
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.disable = zx_pll_disable,
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.is_enabled = zx_pll_is_enabled,
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};
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struct clk *clk_register_zx_pll(const char *name, const char *parent_name,
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unsigned long flags, void __iomem *reg_base,
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const struct zx_pll_config *lookup_table, int count, spinlock_t *lock)
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{
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struct clk_zx_pll *zx_pll;
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struct clk *clk;
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struct clk_init_data init;
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zx_pll = kzalloc(sizeof(*zx_pll), GFP_KERNEL);
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if (!zx_pll)
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return ERR_PTR(-ENOMEM);
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init.name = name;
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init.ops = &zx_pll_ops;
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init.flags = flags;
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init.parent_names = parent_name ? &parent_name : NULL;
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init.num_parents = parent_name ? 1 : 0;
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zx_pll->reg_base = reg_base;
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zx_pll->lookup_table = lookup_table;
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zx_pll->count = count;
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zx_pll->lock = lock;
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zx_pll->hw.init = &init;
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clk = clk_register(NULL, &zx_pll->hw);
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if (IS_ERR(clk))
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kfree(zx_pll);
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return clk;
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}
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@ -0,0 +1,657 @@
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/*
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* Copyright 2014 Linaro Ltd.
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* Copyright (C) 2014 ZTE Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/clk-provider.h>
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#include <linux/of_address.h>
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#include <dt-bindings/clock/zx296702-clock.h>
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#include "clk.h"
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static DEFINE_SPINLOCK(reg_lock);
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static void __iomem *topcrm_base;
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static void __iomem *lsp0crpm_base;
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static void __iomem *lsp1crpm_base;
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static struct clk *topclk[ZX296702_TOPCLK_END];
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static struct clk *lsp0clk[ZX296702_LSP0CLK_END];
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static struct clk *lsp1clk[ZX296702_LSP1CLK_END];
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static struct clk_onecell_data topclk_data;
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static struct clk_onecell_data lsp0clk_data;
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static struct clk_onecell_data lsp1clk_data;
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#define CLK_MUX (topcrm_base + 0x04)
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#define CLK_DIV (topcrm_base + 0x08)
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#define CLK_EN0 (topcrm_base + 0x0c)
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#define CLK_EN1 (topcrm_base + 0x10)
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#define VOU_LOCAL_CLKEN (topcrm_base + 0x68)
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#define VOU_LOCAL_CLKSEL (topcrm_base + 0x70)
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#define VOU_LOCAL_DIV2_SET (topcrm_base + 0x74)
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#define CLK_MUX1 (topcrm_base + 0x8c)
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#define CLK_SDMMC1 (lsp0crpm_base + 0x0c)
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#define CLK_UART0 (lsp1crpm_base + 0x20)
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#define CLK_UART1 (lsp1crpm_base + 0x24)
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#define CLK_SDMMC0 (lsp1crpm_base + 0x2c)
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static const struct zx_pll_config pll_a9_config[] = {
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{ .rate = 700000000, .cfg0 = 0x800405d1, .cfg1 = 0x04555555 },
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{ .rate = 800000000, .cfg0 = 0x80040691, .cfg1 = 0x04aaaaaa },
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{ .rate = 900000000, .cfg0 = 0x80040791, .cfg1 = 0x04000000 },
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{ .rate = 1000000000, .cfg0 = 0x80040851, .cfg1 = 0x04555555 },
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{ .rate = 1100000000, .cfg0 = 0x80040911, .cfg1 = 0x04aaaaaa },
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{ .rate = 1200000000, .cfg0 = 0x80040a11, .cfg1 = 0x04000000 },
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};
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static const struct clk_div_table main_hlk_div[] = {
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{ .val = 1, .div = 2, },
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{ .val = 3, .div = 4, },
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{ /* sentinel */ }
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};
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static const struct clk_div_table a9_as1_aclk_divider[] = {
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{ .val = 0, .div = 1, },
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{ .val = 1, .div = 2, },
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{ .val = 3, .div = 4, },
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{ /* sentinel */ }
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};
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static const struct clk_div_table sec_wclk_divider[] = {
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{ .val = 0, .div = 1, },
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{ .val = 1, .div = 2, },
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{ .val = 3, .div = 4, },
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{ .val = 5, .div = 6, },
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{ .val = 7, .div = 8, },
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{ /* sentinel */ }
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};
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static const char * matrix_aclk_sel[] = {
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"pll_mm0_198M",
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"osc",
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"clk_148M5",
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"pll_lsp_104M",
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};
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static const char * a9_wclk_sel[] = {
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"pll_a9",
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"osc",
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"clk_500",
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"clk_250",
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};
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static const char * a9_as1_aclk_sel[] = {
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"clk_250",
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"osc",
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"pll_mm0_396M",
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"pll_mac_333M",
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};
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static const char * a9_trace_clkin_sel[] = {
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"clk_74M25",
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"pll_mm1_108M",
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"clk_125",
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"clk_148M5",
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};
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static const char * decppu_aclk_sel[] = {
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"clk_250",
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"pll_mm0_198M",
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"pll_lsp_104M",
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"pll_audio_294M912",
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};
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static const char * vou_main_wclk_sel[] = {
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"clk_148M5",
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"clk_74M25",
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"clk_27",
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"pll_mm1_54M",
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};
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static const char * vou_scaler_wclk_sel[] = {
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"clk_250",
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"pll_mac_333M",
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"pll_audio_294M912",
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"pll_mm0_198M",
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};
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static const char * r2d_wclk_sel[] = {
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"pll_audio_294M912",
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"pll_mac_333M",
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"pll_a9_350M",
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"pll_mm0_396M",
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};
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static const char * ddr_wclk_sel[] = {
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"pll_mac_333M",
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"pll_ddr_266M",
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"pll_audio_294M912",
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"pll_mm0_198M",
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};
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static const char * nand_wclk_sel[] = {
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"pll_lsp_104M",
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"osc",
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};
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static const char * lsp_26_wclk_sel[] = {
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"pll_lsp_26M",
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"osc",
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};
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static const char * vl0_sel[] = {
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"vou_main_channel_div",
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"vou_aux_channel_div",
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};
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static const char * hdmi_sel[] = {
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"vou_main_channel_wclk",
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"vou_aux_channel_wclk",
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};
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static const char * sdmmc0_wclk_sel[] = {
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"lsp1_104M_wclk",
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"lsp1_26M_wclk",
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};
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static const char * sdmmc1_wclk_sel[] = {
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"lsp0_104M_wclk",
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"lsp0_26M_wclk",
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};
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static const char * uart_wclk_sel[] = {
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"lsp1_104M_wclk",
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"lsp1_26M_wclk",
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};
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static inline struct clk *zx_divtbl(const char *name, const char *parent,
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void __iomem *reg, u8 shift, u8 width,
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const struct clk_div_table *table)
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{
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return clk_register_divider_table(NULL, name, parent, 0, reg, shift,
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width, 0, table, ®_lock);
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}
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static inline struct clk *zx_div(const char *name, const char *parent,
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void __iomem *reg, u8 shift, u8 width)
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{
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return clk_register_divider(NULL, name, parent, 0,
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reg, shift, width, 0, ®_lock);
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}
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static inline struct clk *zx_mux(const char *name, const char **parents,
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int num_parents, void __iomem *reg, u8 shift, u8 width)
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{
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return clk_register_mux(NULL, name, parents, num_parents,
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0, reg, shift, width, 0, ®_lock);
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}
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static inline struct clk *zx_gate(const char *name, const char *parent,
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void __iomem *reg, u8 shift)
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{
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return clk_register_gate(NULL, name, parent, CLK_IGNORE_UNUSED,
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reg, shift, 0, ®_lock);
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}
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static void __init zx296702_top_clocks_init(struct device_node *np)
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{
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struct clk **clk = topclk;
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int i;
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topcrm_base = of_iomap(np, 0);
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WARN_ON(!topcrm_base);
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clk[ZX296702_OSC] =
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clk_register_fixed_rate(NULL, "osc", NULL, CLK_IS_ROOT,
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30000000);
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clk[ZX296702_PLL_A9] =
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clk_register_zx_pll("pll_a9", "osc", 0, topcrm_base
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+ 0x01c, pll_a9_config,
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ARRAY_SIZE(pll_a9_config), ®_lock);
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/* TODO: pll_a9_350M look like changeble follow a9 pll */
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clk[ZX296702_PLL_A9_350M] =
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clk_register_fixed_rate(NULL, "pll_a9_350M", "osc", 0,
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350000000);
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clk[ZX296702_PLL_MAC_1000M] =
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clk_register_fixed_rate(NULL, "pll_mac_1000M", "osc", 0,
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1000000000);
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clk[ZX296702_PLL_MAC_333M] =
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clk_register_fixed_rate(NULL, "pll_mac_333M", "osc", 0,
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333000000);
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clk[ZX296702_PLL_MM0_1188M] =
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clk_register_fixed_rate(NULL, "pll_mm0_1188M", "osc", 0,
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1188000000);
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clk[ZX296702_PLL_MM0_396M] =
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clk_register_fixed_rate(NULL, "pll_mm0_396M", "osc", 0,
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396000000);
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clk[ZX296702_PLL_MM0_198M] =
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clk_register_fixed_rate(NULL, "pll_mm0_198M", "osc", 0,
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198000000);
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clk[ZX296702_PLL_MM1_108M] =
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clk_register_fixed_rate(NULL, "pll_mm1_108M", "osc", 0,
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108000000);
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clk[ZX296702_PLL_MM1_72M] =
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clk_register_fixed_rate(NULL, "pll_mm1_72M", "osc", 0,
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72000000);
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clk[ZX296702_PLL_MM1_54M] =
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clk_register_fixed_rate(NULL, "pll_mm1_54M", "osc", 0,
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54000000);
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clk[ZX296702_PLL_LSP_104M] =
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clk_register_fixed_rate(NULL, "pll_lsp_104M", "osc", 0,
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104000000);
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clk[ZX296702_PLL_LSP_26M] =
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clk_register_fixed_rate(NULL, "pll_lsp_26M", "osc", 0,
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26000000);
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clk[ZX296702_PLL_DDR_266M] =
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clk_register_fixed_rate(NULL, "pll_ddr_266M", "osc", 0,
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266000000);
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clk[ZX296702_PLL_AUDIO_294M912] =
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clk_register_fixed_rate(NULL, "pll_audio_294M912", "osc", 0,
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294912000);
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/* bus clock */
|
||||
clk[ZX296702_MATRIX_ACLK] =
|
||||
zx_mux("matrix_aclk", matrix_aclk_sel,
|
||||
ARRAY_SIZE(matrix_aclk_sel), CLK_MUX, 2, 2);
|
||||
clk[ZX296702_MAIN_HCLK] =
|
||||
zx_divtbl("main_hclk", "matrix_aclk", CLK_DIV, 0, 2,
|
||||
main_hlk_div);
|
||||
clk[ZX296702_MAIN_PCLK] =
|
||||
zx_divtbl("main_pclk", "matrix_aclk", CLK_DIV, 2, 2,
|
||||
main_hlk_div);
|
||||
|
||||
/* cpu clock */
|
||||
clk[ZX296702_CLK_500] =
|
||||
clk_register_fixed_factor(NULL, "clk_500", "pll_mac_1000M", 0,
|
||||
1, 2);
|
||||
clk[ZX296702_CLK_250] =
|
||||
clk_register_fixed_factor(NULL, "clk_250", "pll_mac_1000M", 0,
|
||||
1, 4);
|
||||
clk[ZX296702_CLK_125] =
|
||||
clk_register_fixed_factor(NULL, "clk_125", "clk_250", 0, 1, 2);
|
||||
clk[ZX296702_CLK_148M5] =
|
||||
clk_register_fixed_factor(NULL, "clk_148M5", "pll_mm0_1188M", 0,
|
||||
1, 8);
|
||||
clk[ZX296702_CLK_74M25] =
|
||||
clk_register_fixed_factor(NULL, "clk_74M25", "pll_mm0_1188M", 0,
|
||||
1, 16);
|
||||
clk[ZX296702_A9_WCLK] =
|
||||
zx_mux("a9_wclk", a9_wclk_sel, ARRAY_SIZE(a9_wclk_sel), CLK_MUX,
|
||||
0, 2);
|
||||
clk[ZX296702_A9_AS1_ACLK_MUX] =
|
||||
zx_mux("a9_as1_aclk_mux", a9_as1_aclk_sel,
|
||||
ARRAY_SIZE(a9_as1_aclk_sel), CLK_MUX, 4, 2);
|
||||
clk[ZX296702_A9_TRACE_CLKIN_MUX] =
|
||||
zx_mux("a9_trace_clkin_mux", a9_trace_clkin_sel,
|
||||
ARRAY_SIZE(a9_trace_clkin_sel), CLK_MUX1, 0, 2);
|
||||
clk[ZX296702_A9_AS1_ACLK_DIV] =
|
||||
zx_divtbl("a9_as1_aclk_div", "a9_as1_aclk_mux", CLK_DIV, 4, 2,
|
||||
a9_as1_aclk_divider);
|
||||
|
||||
/* multi-media clock */
|
||||
clk[ZX296702_CLK_2] =
|
||||
clk_register_fixed_factor(NULL, "clk_2", "pll_mm1_72M", 0,
|
||||
1, 36);
|
||||
clk[ZX296702_CLK_27] =
|
||||
clk_register_fixed_factor(NULL, "clk_27", "pll_mm1_54M", 0,
|
||||
1, 2);
|
||||
clk[ZX296702_DECPPU_ACLK_MUX] =
|
||||
zx_mux("decppu_aclk_mux", decppu_aclk_sel,
|
||||
ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 6, 2);
|
||||
clk[ZX296702_PPU_ACLK_MUX] =
|
||||
zx_mux("ppu_aclk_mux", decppu_aclk_sel,
|
||||
ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 8, 2);
|
||||
clk[ZX296702_MALI400_ACLK_MUX] =
|
||||
zx_mux("mali400_aclk_mux", decppu_aclk_sel,
|
||||
ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 12, 2);
|
||||
clk[ZX296702_VOU_ACLK_MUX] =
|
||||
zx_mux("vou_aclk_mux", decppu_aclk_sel,
|
||||
ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 10, 2);
|
||||
clk[ZX296702_VOU_MAIN_WCLK_MUX] =
|
||||
zx_mux("vou_main_wclk_mux", vou_main_wclk_sel,
|
||||
ARRAY_SIZE(vou_main_wclk_sel), CLK_MUX, 14, 2);
|
||||
clk[ZX296702_VOU_AUX_WCLK_MUX] =
|
||||
zx_mux("vou_aux_wclk_mux", vou_main_wclk_sel,
|
||||
ARRAY_SIZE(vou_main_wclk_sel), CLK_MUX, 16, 2);
|
||||
clk[ZX296702_VOU_SCALER_WCLK_MUX] =
|
||||
zx_mux("vou_scaler_wclk_mux", vou_scaler_wclk_sel,
|
||||
ARRAY_SIZE(vou_scaler_wclk_sel), CLK_MUX,
|
||||
18, 2);
|
||||
clk[ZX296702_R2D_ACLK_MUX] =
|
||||
zx_mux("r2d_aclk_mux", decppu_aclk_sel,
|
||||
ARRAY_SIZE(decppu_aclk_sel), CLK_MUX, 20, 2);
|
||||
clk[ZX296702_R2D_WCLK_MUX] =
|
||||
zx_mux("r2d_wclk_mux", r2d_wclk_sel,
|
||||
ARRAY_SIZE(r2d_wclk_sel), CLK_MUX, 22, 2);
|
||||
|
||||
/* other clock */
|
||||
clk[ZX296702_CLK_50] =
|
||||
clk_register_fixed_factor(NULL, "clk_50", "pll_mac_1000M",
|
||||
0, 1, 20);
|
||||
clk[ZX296702_CLK_25] =
|
||||
clk_register_fixed_factor(NULL, "clk_25", "pll_mac_1000M",
|
||||
0, 1, 40);
|
||||
clk[ZX296702_CLK_12] =
|
||||
clk_register_fixed_factor(NULL, "clk_12", "pll_mm1_72M",
|
||||
0, 1, 6);
|
||||
clk[ZX296702_CLK_16M384] =
|
||||
clk_register_fixed_factor(NULL, "clk_16M384",
|
||||
"pll_audio_294M912", 0, 1, 18);
|
||||
clk[ZX296702_CLK_32K768] =
|
||||
clk_register_fixed_factor(NULL, "clk_32K768", "clk_16M384",
|
||||
0, 1, 500);
|
||||
clk[ZX296702_SEC_WCLK_DIV] =
|
||||
zx_divtbl("sec_wclk_div", "pll_lsp_104M", CLK_DIV, 6, 3,
|
||||
sec_wclk_divider);
|
||||
clk[ZX296702_DDR_WCLK_MUX] =
|
||||
zx_mux("ddr_wclk_mux", ddr_wclk_sel,
|
||||
ARRAY_SIZE(ddr_wclk_sel), CLK_MUX, 24, 2);
|
||||
clk[ZX296702_NAND_WCLK_MUX] =
|
||||
zx_mux("nand_wclk_mux", nand_wclk_sel,
|
||||
ARRAY_SIZE(nand_wclk_sel), CLK_MUX, 24, 2);
|
||||
clk[ZX296702_LSP_26_WCLK_MUX] =
|
||||
zx_mux("lsp_26_wclk_mux", lsp_26_wclk_sel,
|
||||
ARRAY_SIZE(lsp_26_wclk_sel), CLK_MUX, 27, 1);
|
||||
|
||||
/* gates */
|
||||
clk[ZX296702_A9_AS0_ACLK] =
|
||||
zx_gate("a9_as0_aclk", "matrix_aclk", CLK_EN0, 0);
|
||||
clk[ZX296702_A9_AS1_ACLK] =
|
||||
zx_gate("a9_as1_aclk", "a9_as1_aclk_div", CLK_EN0, 1);
|
||||
clk[ZX296702_A9_TRACE_CLKIN] =
|
||||
zx_gate("a9_trace_clkin", "a9_trace_clkin_mux", CLK_EN0, 2);
|
||||
clk[ZX296702_DECPPU_AXI_M_ACLK] =
|
||||
zx_gate("decppu_axi_m_aclk", "decppu_aclk_mux", CLK_EN0, 3);
|
||||
clk[ZX296702_DECPPU_AHB_S_HCLK] =
|
||||
zx_gate("decppu_ahb_s_hclk", "main_hclk", CLK_EN0, 4);
|
||||
clk[ZX296702_PPU_AXI_M_ACLK] =
|
||||
zx_gate("ppu_axi_m_aclk", "ppu_aclk_mux", CLK_EN0, 5);
|
||||
clk[ZX296702_PPU_AHB_S_HCLK] =
|
||||
zx_gate("ppu_ahb_s_hclk", "main_hclk", CLK_EN0, 6);
|
||||
clk[ZX296702_VOU_AXI_M_ACLK] =
|
||||
zx_gate("vou_axi_m_aclk", "vou_aclk_mux", CLK_EN0, 7);
|
||||
clk[ZX296702_VOU_APB_PCLK] =
|
||||
zx_gate("vou_apb_pclk", "main_pclk", CLK_EN0, 8);
|
||||
clk[ZX296702_VOU_MAIN_CHANNEL_WCLK] =
|
||||
zx_gate("vou_main_channel_wclk", "vou_main_wclk_mux",
|
||||
CLK_EN0, 9);
|
||||
clk[ZX296702_VOU_AUX_CHANNEL_WCLK] =
|
||||
zx_gate("vou_aux_channel_wclk", "vou_aux_wclk_mux",
|
||||
CLK_EN0, 10);
|
||||
clk[ZX296702_VOU_HDMI_OSCLK_CEC] =
|
||||
zx_gate("vou_hdmi_osclk_cec", "clk_2", CLK_EN0, 11);
|
||||
clk[ZX296702_VOU_SCALER_WCLK] =
|
||||
zx_gate("vou_scaler_wclk", "vou_scaler_wclk_mux", CLK_EN0, 12);
|
||||
clk[ZX296702_MALI400_AXI_M_ACLK] =
|
||||
zx_gate("mali400_axi_m_aclk", "mali400_aclk_mux", CLK_EN0, 13);
|
||||
clk[ZX296702_MALI400_APB_PCLK] =
|
||||
zx_gate("mali400_apb_pclk", "main_pclk", CLK_EN0, 14);
|
||||
clk[ZX296702_R2D_WCLK] =
|
||||
zx_gate("r2d_wclk", "r2d_wclk_mux", CLK_EN0, 15);
|
||||
clk[ZX296702_R2D_AXI_M_ACLK] =
|
||||
zx_gate("r2d_axi_m_aclk", "r2d_aclk_mux", CLK_EN0, 16);
|
||||
clk[ZX296702_R2D_AHB_HCLK] =
|
||||
zx_gate("r2d_ahb_hclk", "main_hclk", CLK_EN0, 17);
|
||||
clk[ZX296702_DDR3_AXI_S0_ACLK] =
|
||||
zx_gate("ddr3_axi_s0_aclk", "matrix_aclk", CLK_EN0, 18);
|
||||
clk[ZX296702_DDR3_APB_PCLK] =
|
||||
zx_gate("ddr3_apb_pclk", "main_pclk", CLK_EN0, 19);
|
||||
clk[ZX296702_DDR3_WCLK] =
|
||||
zx_gate("ddr3_wclk", "ddr_wclk_mux", CLK_EN0, 20);
|
||||
clk[ZX296702_USB20_0_AHB_HCLK] =
|
||||
zx_gate("usb20_0_ahb_hclk", "main_hclk", CLK_EN0, 21);
|
||||
clk[ZX296702_USB20_0_EXTREFCLK] =
|
||||
zx_gate("usb20_0_extrefclk", "clk_12", CLK_EN0, 22);
|
||||
clk[ZX296702_USB20_1_AHB_HCLK] =
|
||||
zx_gate("usb20_1_ahb_hclk", "main_hclk", CLK_EN0, 23);
|
||||
clk[ZX296702_USB20_1_EXTREFCLK] =
|
||||
zx_gate("usb20_1_extrefclk", "clk_12", CLK_EN0, 24);
|
||||
clk[ZX296702_USB20_2_AHB_HCLK] =
|
||||
zx_gate("usb20_2_ahb_hclk", "main_hclk", CLK_EN0, 25);
|
||||
clk[ZX296702_USB20_2_EXTREFCLK] =
|
||||
zx_gate("usb20_2_extrefclk", "clk_12", CLK_EN0, 26);
|
||||
clk[ZX296702_GMAC_AXI_M_ACLK] =
|
||||
zx_gate("gmac_axi_m_aclk", "matrix_aclk", CLK_EN0, 27);
|
||||
clk[ZX296702_GMAC_APB_PCLK] =
|
||||
zx_gate("gmac_apb_pclk", "main_pclk", CLK_EN0, 28);
|
||||
clk[ZX296702_GMAC_125_CLKIN] =
|
||||
zx_gate("gmac_125_clkin", "clk_125", CLK_EN0, 29);
|
||||
clk[ZX296702_GMAC_RMII_CLKIN] =
|
||||
zx_gate("gmac_rmii_clkin", "clk_50", CLK_EN0, 30);
|
||||
clk[ZX296702_GMAC_25M_CLK] =
|
||||
zx_gate("gmac_25M_clk", "clk_25", CLK_EN0, 31);
|
||||
clk[ZX296702_NANDFLASH_AHB_HCLK] =
|
||||
zx_gate("nandflash_ahb_hclk", "main_hclk", CLK_EN1, 0);
|
||||
clk[ZX296702_NANDFLASH_WCLK] =
|
||||
zx_gate("nandflash_wclk", "nand_wclk_mux", CLK_EN1, 1);
|
||||
clk[ZX296702_LSP0_APB_PCLK] =
|
||||
zx_gate("lsp0_apb_pclk", "main_pclk", CLK_EN1, 2);
|
||||
clk[ZX296702_LSP0_AHB_HCLK] =
|
||||
zx_gate("lsp0_ahb_hclk", "main_hclk", CLK_EN1, 3);
|
||||
clk[ZX296702_LSP0_26M_WCLK] =
|
||||
zx_gate("lsp0_26M_wclk", "lsp_26_wclk_mux", CLK_EN1, 4);
|
||||
clk[ZX296702_LSP0_104M_WCLK] =
|
||||
zx_gate("lsp0_104M_wclk", "pll_lsp_104M", CLK_EN1, 5);
|
||||
clk[ZX296702_LSP0_16M384_WCLK] =
|
||||
zx_gate("lsp0_16M384_wclk", "clk_16M384", CLK_EN1, 6);
|
||||
clk[ZX296702_LSP1_APB_PCLK] =
|
||||
zx_gate("lsp1_apb_pclk", "main_pclk", CLK_EN1, 7);
|
||||
/* FIXME: wclk enable bit is bit8. We hack it as reserved 31 for
|
||||
* UART does not work after parent clk is disabled/enabled */
|
||||
clk[ZX296702_LSP1_26M_WCLK] =
|
||||
zx_gate("lsp1_26M_wclk", "lsp_26_wclk_mux", CLK_EN1, 31);
|
||||
clk[ZX296702_LSP1_104M_WCLK] =
|
||||
zx_gate("lsp1_104M_wclk", "pll_lsp_104M", CLK_EN1, 9);
|
||||
clk[ZX296702_LSP1_32K_CLK] =
|
||||
zx_gate("lsp1_32K_clk", "clk_32K768", CLK_EN1, 10);
|
||||
clk[ZX296702_AON_HCLK] =
|
||||
zx_gate("aon_hclk", "main_hclk", CLK_EN1, 11);
|
||||
clk[ZX296702_SYS_CTRL_PCLK] =
|
||||
zx_gate("sys_ctrl_pclk", "main_pclk", CLK_EN1, 12);
|
||||
clk[ZX296702_DMA_PCLK] =
|
||||
zx_gate("dma_pclk", "main_pclk", CLK_EN1, 13);
|
||||
clk[ZX296702_DMA_ACLK] =
|
||||
zx_gate("dma_aclk", "matrix_aclk", CLK_EN1, 14);
|
||||
clk[ZX296702_SEC_HCLK] =
|
||||
zx_gate("sec_hclk", "main_hclk", CLK_EN1, 15);
|
||||
clk[ZX296702_AES_WCLK] =
|
||||
zx_gate("aes_wclk", "sec_wclk_div", CLK_EN1, 16);
|
||||
clk[ZX296702_DES_WCLK] =
|
||||
zx_gate("des_wclk", "sec_wclk_div", CLK_EN1, 17);
|
||||
clk[ZX296702_IRAM_ACLK] =
|
||||
zx_gate("iram_aclk", "matrix_aclk", CLK_EN1, 18);
|
||||
clk[ZX296702_IROM_ACLK] =
|
||||
zx_gate("irom_aclk", "matrix_aclk", CLK_EN1, 19);
|
||||
clk[ZX296702_BOOT_CTRL_HCLK] =
|
||||
zx_gate("boot_ctrl_hclk", "main_hclk", CLK_EN1, 20);
|
||||
clk[ZX296702_EFUSE_CLK_30] =
|
||||
zx_gate("efuse_clk_30", "osc", CLK_EN1, 21);
|
||||
|
||||
/* TODO: add VOU Local clocks */
|
||||
clk[ZX296702_VOU_MAIN_CHANNEL_DIV] =
|
||||
zx_div("vou_main_channel_div", "vou_main_channel_wclk",
|
||||
VOU_LOCAL_DIV2_SET, 1, 1);
|
||||
clk[ZX296702_VOU_AUX_CHANNEL_DIV] =
|
||||
zx_div("vou_aux_channel_div", "vou_aux_channel_wclk",
|
||||
VOU_LOCAL_DIV2_SET, 0, 1);
|
||||
clk[ZX296702_VOU_TV_ENC_HD_DIV] =
|
||||
zx_div("vou_tv_enc_hd_div", "vou_tv_enc_hd_mux",
|
||||
VOU_LOCAL_DIV2_SET, 3, 1);
|
||||
clk[ZX296702_VOU_TV_ENC_SD_DIV] =
|
||||
zx_div("vou_tv_enc_sd_div", "vou_tv_enc_sd_mux",
|
||||
VOU_LOCAL_DIV2_SET, 2, 1);
|
||||
clk[ZX296702_VL0_MUX] =
|
||||
zx_mux("vl0_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
|
||||
VOU_LOCAL_CLKSEL, 8, 1);
|
||||
clk[ZX296702_VL1_MUX] =
|
||||
zx_mux("vl1_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
|
||||
VOU_LOCAL_CLKSEL, 9, 1);
|
||||
clk[ZX296702_VL2_MUX] =
|
||||
zx_mux("vl2_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
|
||||
VOU_LOCAL_CLKSEL, 10, 1);
|
||||
clk[ZX296702_GL0_MUX] =
|
||||
zx_mux("gl0_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
|
||||
VOU_LOCAL_CLKSEL, 5, 1);
|
||||
clk[ZX296702_GL1_MUX] =
|
||||
zx_mux("gl1_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
|
||||
VOU_LOCAL_CLKSEL, 6, 1);
|
||||
clk[ZX296702_GL2_MUX] =
|
||||
zx_mux("gl2_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
|
||||
VOU_LOCAL_CLKSEL, 7, 1);
|
||||
clk[ZX296702_WB_MUX] =
|
||||
zx_mux("wb_mux", vl0_sel, ARRAY_SIZE(vl0_sel),
|
||||
VOU_LOCAL_CLKSEL, 11, 1);
|
||||
clk[ZX296702_HDMI_MUX] =
|
||||
zx_mux("hdmi_mux", hdmi_sel, ARRAY_SIZE(hdmi_sel),
|
||||
VOU_LOCAL_CLKSEL, 4, 1);
|
||||
clk[ZX296702_VOU_TV_ENC_HD_MUX] =
|
||||
zx_mux("vou_tv_enc_hd_mux", hdmi_sel, ARRAY_SIZE(hdmi_sel),
|
||||
VOU_LOCAL_CLKSEL, 3, 1);
|
||||
clk[ZX296702_VOU_TV_ENC_SD_MUX] =
|
||||
zx_mux("vou_tv_enc_sd_mux", hdmi_sel, ARRAY_SIZE(hdmi_sel),
|
||||
VOU_LOCAL_CLKSEL, 2, 1);
|
||||
clk[ZX296702_VL0_CLK] =
|
||||
zx_gate("vl0_clk", "vl0_mux", VOU_LOCAL_CLKEN, 8);
|
||||
clk[ZX296702_VL1_CLK] =
|
||||
zx_gate("vl1_clk", "vl1_mux", VOU_LOCAL_CLKEN, 9);
|
||||
clk[ZX296702_VL2_CLK] =
|
||||
zx_gate("vl2_clk", "vl2_mux", VOU_LOCAL_CLKEN, 10);
|
||||
clk[ZX296702_GL0_CLK] =
|
||||
zx_gate("gl0_clk", "gl0_mux", VOU_LOCAL_CLKEN, 5);
|
||||
clk[ZX296702_GL1_CLK] =
|
||||
zx_gate("gl1_clk", "gl1_mux", VOU_LOCAL_CLKEN, 6);
|
||||
clk[ZX296702_GL2_CLK] =
|
||||
zx_gate("gl2_clk", "gl2_mux", VOU_LOCAL_CLKEN, 7);
|
||||
clk[ZX296702_WB_CLK] =
|
||||
zx_gate("wb_clk", "wb_mux", VOU_LOCAL_CLKEN, 11);
|
||||
clk[ZX296702_CL_CLK] =
|
||||
zx_gate("cl_clk", "vou_main_channel_div", VOU_LOCAL_CLKEN, 12);
|
||||
clk[ZX296702_MAIN_MIX_CLK] =
|
||||
zx_gate("main_mix_clk", "vou_main_channel_div",
|
||||
VOU_LOCAL_CLKEN, 4);
|
||||
clk[ZX296702_AUX_MIX_CLK] =
|
||||
zx_gate("aux_mix_clk", "vou_aux_channel_div",
|
||||
VOU_LOCAL_CLKEN, 3);
|
||||
clk[ZX296702_HDMI_CLK] =
|
||||
zx_gate("hdmi_clk", "hdmi_mux", VOU_LOCAL_CLKEN, 2);
|
||||
clk[ZX296702_VOU_TV_ENC_HD_DAC_CLK] =
|
||||
zx_gate("vou_tv_enc_hd_dac_clk", "vou_tv_enc_hd_div",
|
||||
VOU_LOCAL_CLKEN, 1);
|
||||
clk[ZX296702_VOU_TV_ENC_SD_DAC_CLK] =
|
||||
zx_gate("vou_tv_enc_sd_dac_clk", "vou_tv_enc_sd_div",
|
||||
VOU_LOCAL_CLKEN, 0);
|
||||
|
||||
/* CA9 PERIPHCLK = a9_wclk / 2 */
|
||||
clk[ZX296702_A9_PERIPHCLK] =
|
||||
clk_register_fixed_factor(NULL, "a9_periphclk", "a9_wclk",
|
||||
0, 1, 2);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(topclk); i++) {
|
||||
if (IS_ERR(clk[i])) {
|
||||
pr_err("zx296702 clk %d: register failed with %ld\n",
|
||||
i, PTR_ERR(clk[i]));
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
topclk_data.clks = topclk;
|
||||
topclk_data.clk_num = ARRAY_SIZE(topclk);
|
||||
of_clk_add_provider(np, of_clk_src_onecell_get, &topclk_data);
|
||||
}
|
||||
CLK_OF_DECLARE(zx296702_top_clk, "zte,zx296702-topcrm-clk",
|
||||
zx296702_top_clocks_init);
|
||||
|
||||
static void __init zx296702_lsp0_clocks_init(struct device_node *np)
|
||||
{
|
||||
struct clk **clk = lsp0clk;
|
||||
int i;
|
||||
|
||||
lsp0crpm_base = of_iomap(np, 0);
|
||||
WARN_ON(!lsp0crpm_base);
|
||||
|
||||
/* SDMMC1 */
|
||||
clk[ZX296702_SDMMC1_WCLK_MUX] =
|
||||
zx_mux("sdmmc1_wclk_mux", sdmmc1_wclk_sel,
|
||||
ARRAY_SIZE(sdmmc1_wclk_sel), CLK_SDMMC1, 4, 1);
|
||||
clk[ZX296702_SDMMC1_WCLK_DIV] =
|
||||
zx_div("sdmmc1_wclk_div", "sdmmc1_wclk_mux", CLK_SDMMC1, 12, 4);
|
||||
clk[ZX296702_SDMMC1_WCLK] =
|
||||
zx_gate("sdmmc1_wclk", "sdmmc1_wclk_div", CLK_SDMMC1, 1);
|
||||
clk[ZX296702_SDMMC1_PCLK] =
|
||||
zx_gate("sdmmc1_pclk", "lsp1_apb_pclk", CLK_SDMMC1, 0);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(lsp0clk); i++) {
|
||||
if (IS_ERR(clk[i])) {
|
||||
pr_err("zx296702 clk %d: register failed with %ld\n",
|
||||
i, PTR_ERR(clk[i]));
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
lsp0clk_data.clks = lsp0clk;
|
||||
lsp0clk_data.clk_num = ARRAY_SIZE(lsp0clk);
|
||||
of_clk_add_provider(np, of_clk_src_onecell_get, &lsp0clk_data);
|
||||
}
|
||||
CLK_OF_DECLARE(zx296702_lsp0_clk, "zte,zx296702-lsp0crpm-clk",
|
||||
zx296702_lsp0_clocks_init);
|
||||
|
||||
static void __init zx296702_lsp1_clocks_init(struct device_node *np)
|
||||
{
|
||||
struct clk **clk = lsp1clk;
|
||||
int i;
|
||||
|
||||
lsp1crpm_base = of_iomap(np, 0);
|
||||
WARN_ON(!lsp1crpm_base);
|
||||
|
||||
/* UART0 */
|
||||
clk[ZX296702_UART0_WCLK_MUX] =
|
||||
zx_mux("uart0_wclk_mux", uart_wclk_sel,
|
||||
ARRAY_SIZE(uart_wclk_sel), CLK_UART0, 4, 1);
|
||||
/* FIXME: uart wclk enable bit is bit1 in. We hack it as reserved 31 for
|
||||
* UART does not work after parent clk is disabled/enabled */
|
||||
clk[ZX296702_UART0_WCLK] =
|
||||
zx_gate("uart0_wclk", "uart0_wclk_mux", CLK_UART0, 31);
|
||||
clk[ZX296702_UART0_PCLK] =
|
||||
zx_gate("uart0_pclk", "lsp1_apb_pclk", CLK_UART0, 0);
|
||||
|
||||
/* UART1 */
|
||||
clk[ZX296702_UART1_WCLK_MUX] =
|
||||
zx_mux("uart1_wclk_mux", uart_wclk_sel,
|
||||
ARRAY_SIZE(uart_wclk_sel), CLK_UART1, 4, 1);
|
||||
clk[ZX296702_UART1_WCLK] =
|
||||
zx_gate("uart1_wclk", "uart1_wclk_mux", CLK_UART1, 1);
|
||||
clk[ZX296702_UART1_PCLK] =
|
||||
zx_gate("uart1_pclk", "lsp1_apb_pclk", CLK_UART1, 0);
|
||||
|
||||
/* SDMMC0 */
|
||||
clk[ZX296702_SDMMC0_WCLK_MUX] =
|
||||
zx_mux("sdmmc0_wclk_mux", sdmmc0_wclk_sel,
|
||||
ARRAY_SIZE(sdmmc0_wclk_sel), CLK_SDMMC0, 4, 1);
|
||||
clk[ZX296702_SDMMC0_WCLK_DIV] =
|
||||
zx_div("sdmmc0_wclk_div", "sdmmc0_wclk_mux", CLK_SDMMC0, 12, 4);
|
||||
clk[ZX296702_SDMMC0_WCLK] =
|
||||
zx_gate("sdmmc0_wclk", "sdmmc0_wclk_div", CLK_SDMMC0, 1);
|
||||
clk[ZX296702_SDMMC0_PCLK] =
|
||||
zx_gate("sdmmc0_pclk", "lsp1_apb_pclk", CLK_SDMMC0, 0);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(lsp1clk); i++) {
|
||||
if (IS_ERR(clk[i])) {
|
||||
pr_err("zx296702 clk %d: register failed with %ld\n",
|
||||
i, PTR_ERR(clk[i]));
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
lsp1clk_data.clks = lsp1clk;
|
||||
lsp1clk_data.clk_num = ARRAY_SIZE(lsp1clk);
|
||||
of_clk_add_provider(np, of_clk_src_onecell_get, &lsp1clk_data);
|
||||
}
|
||||
CLK_OF_DECLARE(zx296702_lsp1_clk, "zte,zx296702-lsp1crpm-clk",
|
||||
zx296702_lsp1_clocks_init);
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
/*
|
||||
* Copyright 2015 Linaro Ltd.
|
||||
* Copyright (C) 2014 ZTE Corporation.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef __ZTE_CLK_H
|
||||
#define __ZTE_CLK_H
|
||||
#include <linux/clk-provider.h>
|
||||
#include <linux/spinlock.h>
|
||||
|
||||
struct zx_pll_config {
|
||||
unsigned long rate;
|
||||
u32 cfg0;
|
||||
u32 cfg1;
|
||||
};
|
||||
|
||||
struct clk_zx_pll {
|
||||
struct clk_hw hw;
|
||||
void __iomem *reg_base;
|
||||
const struct zx_pll_config *lookup_table; /* order by rate asc */
|
||||
int count;
|
||||
spinlock_t *lock;
|
||||
};
|
||||
|
||||
struct clk *clk_register_zx_pll(const char *name, const char *parent_name,
|
||||
unsigned long flags, void __iomem *reg_base,
|
||||
const struct zx_pll_config *lookup_table, int count, spinlock_t *lock);
|
||||
#endif
|
||||
Loading…
Reference in New Issue