[PATCH v1 3/3] clk: rockchip: add clock controller for rk3036
From: Xing Zheng
Date: Fri Aug 28 2015 - 01:47:32 EST
Add the clock tree definition for the new rk3036 SoC,
but there are some issues to be fixed:
1. soc will crash if gpll run rate_change_remuxed
2. rk3036_clk_suspend and rk3036_clk_resume should be done
in clk-rk3036.c
---
Changes in v1:
Signed-off-by: Xing Zheng <zhengxing@xxxxxxxxxxxxxx>
drivers/clk/rockchip/Makefile | 1 +
drivers/clk/rockchip/clk-pll.c | 247 ++++++++++++++-
drivers/clk/rockchip/clk-rk3036.c | 539 ++++++++++++++++++++++++++++++++
drivers/clk/rockchip/clk.h | 30 ++
include/dt-bindings/clock/rk3036-cru.h | 247 +++++++++++++++
5 files changed, 1063 insertions(+), 1 deletion(-)
create mode 100644 drivers/clk/rockchip/clk-rk3036.c
create mode 100644 include/dt-bindings/clock/rk3036-cru.h
diff --git a/drivers/clk/rockchip/Makefile b/drivers/clk/rockchip/Makefile
index b27edd6..d599829 100644
--- a/drivers/clk/rockchip/Makefile
+++ b/drivers/clk/rockchip/Makefile
@@ -10,6 +10,7 @@ obj-y += clk-inverter.o
obj-y += clk-mmc-phase.o
obj-$(CONFIG_RESET_CONTROLLER) += softrst.o
+obj-y += clk-rk3036.o
obj-y += clk-rk3188.o
obj-y += clk-rk3288.o
obj-y += clk-rk3368.o
diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c
index 96903ae..cf56826 100644
--- a/drivers/clk/rockchip/clk-pll.c
+++ b/drivers/clk/rockchip/clk-pll.c
@@ -2,6 +2,9 @@
* Copyright (c) 2014 MundoReader S.L.
* Author: Heiko Stuebner <heiko@xxxxxxxxx>
*
+ * Copyright (c) 2015 Rockchip Electronics Co. Ltd.
+ * Author: Xing Zheng <zhengxing@xxxxxxxxxxxxxx>
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -48,6 +51,8 @@ struct rockchip_clk_pll {
#define to_rockchip_clk_pll_nb(nb) \
container_of(nb, struct rockchip_clk_pll, clk_nb)
+static int rockchip_rk3036_pll_wait_lock(struct rockchip_clk_pll *pll);
+
static const struct rockchip_pll_rate_table *rockchip_get_pll_settings(
struct rockchip_clk_pll *pll, unsigned long rate)
{
@@ -90,6 +95,11 @@ static int rockchip_pll_wait_lock(struct rockchip_clk_pll *pll)
unsigned int val;
int delay = 24000000, ret;
+ /* the plls of rk3036 wait lock */
+ if (pll->type == pll_rk3036 || pll->lock_offset == -1) {
+ return rockchip_rk3036_pll_wait_lock(pll);
+ }
+
while (delay > 0) {
ret = regmap_read(grf, pll->lock_offset, &val);
if (ret) {
@@ -305,6 +315,235 @@ static void rockchip_rk3066_pll_init(struct clk_hw *hw)
rockchip_rk3066_pll_set_rate(hw, drate, prate);
}
}
+/**
+ * PLL used in RK3036
+ */
+
+#define RK3036_PLL_RESET_DELAY(nr) ((nr * 500) / 24 + 1)
+
+#define RK3036_PLLCON(i) (i * 0x4)
+#define RK3036_PLLCON0_FBDIV_MASK 0xfff
+#define RK3036_PLLCON0_FBDIV_SHIFT 0
+#define RK3036_PLLCON0_POSTDIV1_MASK 0x7
+#define RK3036_PLLCON0_POSTDIV1_SHIFT 12
+#define RK3036_PLLCON1_REFDIV_MASK 0x3f
+#define RK3036_PLLCON1_REFDIV_SHIFT 0
+#define RK3036_PLLCON1_POSTDIV2_MASK 0x7
+#define RK3036_PLLCON1_POSTDIV2_SHIFT 6
+#define RK3036_PLLCON1_DSMPD_MASK 0x1
+#define RK3036_PLLCON1_DSMPD_SHIFT 12
+#define RK3036_PLLCON2_FRAC_MASK 0xffffff
+#define RK3036_PLLCON2_FRAC_SHIFT 0
+
+#define RK3036_MODECON 0x40
+#define RK3036_MODECON_AWM (1 << 0) /* apll work mode */
+
+#define RK3036_PLLCON0_BYPASS (1 << 15)
+#define RK3036_PLLCON1_LOCK_STATUS (1 << 10)
+#define RK3036_PLLCON1_RESET (1 << 14)
+
+static int rockchip_rk3036_pll_wait_lock(struct rockchip_clk_pll *pll)
+{
+ u32 pllcon;
+ int delay = 24000000;
+
+ /* poll check the lock status in rk3036 xPLLCON1 */
+ while (delay > 0) {
+ pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(1));
+ if (pllcon & RK3036_PLLCON1_LOCK_STATUS)
+ return 0;
+
+ delay--;
+ }
+
+ pr_err("%s: timeout waiting for pll to lock\n", __func__);
+ return -ETIMEDOUT;
+}
+
+static unsigned long rockchip_rk3036_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long prate)
+{
+ struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw);
+ unsigned int fbdiv, postdiv1, refdiv, postdiv2, dsmpd, frac;
+ u64 rate64 = prate;
+ u32 pllcon;
+
+ pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(0));
+ fbdiv = ((pllcon >> RK3036_PLLCON0_FBDIV_SHIFT) & RK3036_PLLCON0_FBDIV_MASK);
+ postdiv1 = ((pllcon >> RK3036_PLLCON0_POSTDIV1_SHIFT) & RK3036_PLLCON0_POSTDIV1_MASK);
+
+ pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(1));
+ refdiv = ((pllcon >> RK3036_PLLCON1_REFDIV_SHIFT) & RK3036_PLLCON1_REFDIV_MASK);
+ postdiv2 = ((pllcon >> RK3036_PLLCON1_POSTDIV2_SHIFT) & RK3036_PLLCON1_POSTDIV2_MASK);
+ dsmpd = ((pllcon >> RK3036_PLLCON1_DSMPD_SHIFT) & RK3036_PLLCON1_DSMPD_MASK);
+
+ pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(2));
+ frac = ((pllcon >> RK3036_PLLCON2_FRAC_SHIFT) & RK3036_PLLCON2_FRAC_MASK);
+
+ rate64 *= fbdiv;
+ do_div(rate64, refdiv);
+
+ if (dsmpd == 0) {
+ /* fractional mode */
+ u64 frac_rate64 = prate * frac;
+
+ do_div(frac_rate64, refdiv);
+ rate64 += frac_rate64 >> 24;
+ }
+
+ do_div(rate64, postdiv1);
+ do_div(rate64, postdiv2);
+
+ return (unsigned long)rate64;
+}
+
+static int rockchip_rk3036_pll_set_rate(struct clk_hw *hw, unsigned long drate,
+ unsigned long prate)
+{
+ struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw);
+ const struct rockchip_pll_rate_table *rate;
+ unsigned long old_rate = rockchip_rk3036_pll_recalc_rate(hw, prate);
+ struct regmap *grf = rockchip_clk_get_grf();
+ struct clk_mux *pll_mux = &pll->pll_mux;
+ const struct clk_ops *pll_mux_ops = pll->pll_mux_ops;
+ int rate_change_remuxed = 0;
+ int cur_parent;
+ int ret;
+
+ if (IS_ERR(grf)) {
+ pr_debug("%s: grf regmap not available, aborting rate change\n",
+ __func__);
+ return PTR_ERR(grf);
+ }
+
+ pr_debug("%s: changing %s from %lu to %lu with a parent rate of %lu\n",
+ __func__, __clk_get_name(hw->clk), old_rate, drate, prate);
+
+ /* Get required rate settings from table */
+ rate = rockchip_get_pll_settings(pll, drate);
+ if (!rate) {
+ pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__,
+ drate, __clk_get_name(hw->clk));
+ return -EINVAL;
+ }
+
+ pr_debug("%s: rate settings for %lu fbdiv: %d, postdiv1: %d, refdiv: %d, postdiv2: %d, dsmpd: %d, frac: %d\n",
+ __func__, rate->rate,
+ rate->fbdiv, rate->postdiv1, rate->refdiv, rate->postdiv2, rate->dsmpd, rate->frac);
+
+ cur_parent = pll_mux_ops->get_parent(&pll_mux->hw);
+ if (cur_parent == PLL_MODE_NORM) {
+ pll_mux_ops->set_parent(&pll_mux->hw, PLL_MODE_SLOW);
+ rate_change_remuxed = 1;
+ }
+
+ /* enter reset mode */
+ writel(HIWORD_UPDATE(1, RK3036_PLLCON1_RESET, 0), pll->reg_base + RK3036_PLLCON(1));
+
+ /* update pll values */
+ writel_relaxed(HIWORD_UPDATE(rate->fbdiv, RK3036_PLLCON0_FBDIV_MASK,
+ RK3036_PLLCON0_FBDIV_SHIFT) |
+ HIWORD_UPDATE(rate->postdiv1, RK3036_PLLCON0_POSTDIV1_MASK,
+ RK3036_PLLCON0_POSTDIV1_SHIFT),
+ pll->reg_base + RK3036_PLLCON(0));
+
+ writel_relaxed(HIWORD_UPDATE(rate->refdiv, RK3036_PLLCON1_REFDIV_MASK,
+ RK3036_PLLCON1_REFDIV_SHIFT) |
+ HIWORD_UPDATE(rate->postdiv2, RK3036_PLLCON1_POSTDIV2_MASK,
+ RK3036_PLLCON1_POSTDIV2_SHIFT) |
+ HIWORD_UPDATE(rate->dsmpd, RK3036_PLLCON1_DSMPD_MASK,
+ RK3036_PLLCON1_DSMPD_SHIFT),
+ pll->reg_base + RK3036_PLLCON(1));
+
+ writel_relaxed(HIWORD_UPDATE(rate->frac, RK3036_PLLCON2_FRAC_MASK,
+ RK3036_PLLCON2_FRAC_SHIFT),
+ pll->reg_base + RK3036_PLLCON(2));
+
+ /* recover normal mode and wait the reset_delay */
+ writel(HIWORD_UPDATE(0, RK3036_PLLCON1_RESET, 0), pll->reg_base + RK3036_PLLCON(1));
+ udelay(RK3036_PLL_RESET_DELAY(rate->refdiv));
+
+ /* wait for the pll to lock */
+ ret = rockchip_pll_wait_lock(pll);
+ if (ret) {
+ pr_warn("%s: pll did not lock, trying to restore old rate %lu\n",
+ __func__, old_rate);
+ rockchip_rk3036_pll_set_rate(hw, old_rate, prate);
+ }
+
+#if 0 /* FIXME: soc will crash if gpll run here */
+ if (rate_change_remuxed)
+ pll_mux_ops->set_parent(&pll_mux->hw, PLL_MODE_NORM);
+#endif
+
+ return ret;
+}
+static void rockchip_rk3036_pll_init(struct clk_hw *hw)
+{
+ struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw);
+ const struct rockchip_pll_rate_table *rate;
+ unsigned int fbdiv, postdiv1, refdiv, postdiv2, dsmpd, frac;
+ unsigned long drate;
+ u32 pllcon;
+
+ if (!(pll->flags & ROCKCHIP_PLL_SYNC_RATE))
+ return;
+
+ drate = __clk_get_rate(hw->clk);
+ rate = rockchip_get_pll_settings(pll, drate);
+
+ /* when no rate setting for the current rate, rely on clk_set_rate */
+ if (!rate)
+ return;
+
+ pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(0));
+ fbdiv = ((pllcon >> RK3036_PLLCON0_FBDIV_SHIFT) & RK3036_PLLCON0_FBDIV_MASK);
+ postdiv1 = ((pllcon >> RK3036_PLLCON0_POSTDIV1_SHIFT) & RK3036_PLLCON0_POSTDIV1_MASK);
+
+ pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(1));
+ refdiv = ((pllcon >> RK3036_PLLCON1_REFDIV_SHIFT) & RK3036_PLLCON1_REFDIV_MASK);
+ postdiv2 = ((pllcon >> RK3036_PLLCON1_POSTDIV2_SHIFT) & RK3036_PLLCON1_POSTDIV2_MASK);
+ dsmpd = ((pllcon >> RK3036_PLLCON1_DSMPD_SHIFT) & RK3036_PLLCON1_DSMPD_MASK);
+
+ pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(2));
+ frac = ((pllcon >> RK3036_PLLCON2_FRAC_SHIFT) & RK3036_PLLCON2_FRAC_MASK);
+
+ pr_info("%s: pll %s@%lu: Hz\n", __func__, __clk_get_name(hw->clk), drate);
+ pr_info("old - fbdiv: %d, postdiv1: %d, refdiv: %d, postdiv2: %d, dsmpd: %d, frac: %d\n",
+ fbdiv, postdiv1, refdiv, postdiv2, dsmpd, frac);
+ pr_info("new - fbdiv: %d, postdiv1: %d, refdiv: %d, postdiv2: %d, dsmpd: %d, frac: %d\n",
+ rate->fbdiv, rate->postdiv1, rate->refdiv, rate->postdiv2, rate->dsmpd, rate->frac);
+
+ if (rate->fbdiv != fbdiv || rate->postdiv1 != postdiv1 || rate->refdiv != refdiv ||
+ rate->postdiv2 != postdiv2 || rate->dsmpd != dsmpd || rate->frac != frac) {
+ struct clk *parent = __clk_get_parent(hw->clk);
+ unsigned long prate;
+
+ if (!parent) {
+ pr_warn("%s: parent of %s not available\n",
+ __func__, __clk_get_name(hw->clk));
+ return;
+ }
+
+ pr_info("%s: pll %s: rate params do not match rate table, adjusting\n",
+ __func__, __clk_get_name(hw->clk));
+ prate = __clk_get_rate(parent);
+ rockchip_rk3036_pll_set_rate(hw, drate, prate);
+ }
+}
+static const struct clk_ops rockchip_rk3036_pll_clk_norate_ops = {
+ .recalc_rate = rockchip_rk3036_pll_recalc_rate,
+ .round_rate = rockchip_pll_round_rate,
+ .set_rate = rockchip_rk3036_pll_set_rate,
+ .init = rockchip_rk3036_pll_init,
+};
+
+static const struct clk_ops rockchip_rk3036_pll_clk_ops = {
+ .recalc_rate = rockchip_rk3036_pll_recalc_rate,
+ .round_rate = rockchip_pll_round_rate,
+ .set_rate = rockchip_rk3036_pll_set_rate,
+ .init = rockchip_rk3036_pll_init,
+};
static const struct clk_ops rockchip_rk3066_pll_clk_norate_ops = {
.recalc_rate = rockchip_rk3066_pll_recalc_rate,
@@ -385,6 +624,12 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type,
else
init.ops = &rockchip_rk3066_pll_clk_ops;
break;
+ case pll_rk3036:
+ if (!pll->rate_table)
+ init.ops = &rockchip_rk3036_pll_clk_norate_ops;
+ else
+ init.ops = &rockchip_rk3036_pll_clk_ops;
+ break;
default:
pr_warn("%s: Unknown pll type for pll clk %s\n",
__func__, name);
@@ -408,7 +653,7 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type,
pll_mux->lock = lock;
pll_mux->hw.init = &init;
- if (pll_type == pll_rk3066)
+ if (pll_type == pll_rk3066 || pll_type == pll_rk3036)
pll_mux->flags |= CLK_MUX_HIWORD_MASK;
pll_clk = clk_register(NULL, &pll->hw);
diff --git a/drivers/clk/rockchip/clk-rk3036.c b/drivers/clk/rockchip/clk-rk3036.c
new file mode 100644
index 0000000..19cdf0e
--- /dev/null
+++ b/drivers/clk/rockchip/clk-rk3036.c
@@ -0,0 +1,539 @@
+/*
+ * Copyright (c) 2014 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko@xxxxxxxxx>
+ *
+ * Copyright (c) 2015 Rockchip Electronics Co. Ltd.
+ * Author: Xing Zheng <zhengxing@xxxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/syscore_ops.h>
+#include <dt-bindings/clock/rk3036-cru.h>
+#include "clk.h"
+
+enum rk3036_plls {
+ apll, dpll, gpll,
+};
+
+static struct rockchip_pll_rate_table rk3036_pll_rates[] = {
+ /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
+ RK3036_PLL_RATE(1608000000, 1, 67, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1584000000, 1, 66, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1560000000, 1, 65, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1536000000, 1, 64, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1512000000, 1, 63, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1488000000, 1, 62, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1464000000, 1, 61, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1440000000, 1, 60, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1416000000, 1, 59, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1392000000, 1, 58, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1368000000, 1, 57, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1344000000, 1, 56, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1320000000, 1, 55, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1296000000, 1, 54, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1272000000, 1, 53, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1248000000, 1, 52, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1200000000, 1, 50, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1188000000, 2, 99, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1104000000, 1, 46, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1100000000, 12, 550, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0),
+ RK3036_PLL_RATE(1000000000, 6, 500, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 984000000, 1, 82, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 960000000, 1, 80, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 936000000, 1, 78, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 912000000, 1, 76, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 900000000, 4, 300, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 888000000, 1, 74, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 864000000, 1, 72, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 840000000, 1, 70, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 816000000, 1, 68, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 800000000, 6, 400, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 700000000, 6, 350, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 696000000, 1, 58, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 600000000, 1, 75, 3, 1, 1, 0),
+ RK3036_PLL_RATE( 594000000, 2, 99, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 504000000, 1, 63, 3, 1, 1, 0),
+ RK3036_PLL_RATE( 500000000, 6, 250, 2, 1, 1, 0),
+ RK3036_PLL_RATE( 408000000, 1, 68, 2, 2, 1, 0),
+ RK3036_PLL_RATE( 312000000, 1, 52, 2, 2, 1, 0),
+ RK3036_PLL_RATE( 216000000, 1, 72, 4, 2, 1, 0),
+ RK3036_PLL_RATE( 96000000, 1, 64, 4, 4, 1, 0),
+ RK3036_PLL_RATE(0, 1, 0, 1, 1, 1, 0),
+ { /* sentinel */ },
+};
+
+#define RK3036_DIV_CPU_MASK 0x1f
+#define RK3036_DIV_CPU_SHIFT 8
+
+#define RK3036_DIV_PERI_MASK 0xf
+#define RK3036_DIV_PERI_SHIFT 0
+#define RK3036_DIV_ACLK_MASK 0x7
+#define RK3036_DIV_ACLK_SHIFT 4
+#define RK3036_DIV_HCLK_MASK 0x3
+#define RK3036_DIV_HCLK_SHIFT 8
+#define RK3036_DIV_PCLK_MASK 0x7
+#define RK3036_DIV_PCLK_SHIFT 12
+
+#define RK3036_CLKSEL1(_core_periph_div) \
+ { \
+ .reg = RK2928_CLKSEL_CON(1), \
+ .val = HIWORD_UPDATE(_core_periph_div, RK3036_DIV_PERI_MASK, \
+ RK3036_DIV_PERI_SHIFT) \
+ }
+
+#define RK3036_CPUCLK_RATE(_prate, _core_periph_div) \
+ { \
+ .prate = _prate, \
+ .divs = { \
+ RK3036_CLKSEL1(_core_periph_div), \
+ }, \
+ }
+
+static struct rockchip_cpuclk_rate_table rk3036_cpuclk_rates[] __initdata = {
+ RK3036_CPUCLK_RATE(816000000, 4),
+ RK3036_CPUCLK_RATE(600000000, 4),
+ RK3036_CPUCLK_RATE(312000000, 4),
+};
+
+static const struct rockchip_cpuclk_reg_data rk3036_cpuclk_data = {
+ .core_reg = RK2928_CLKSEL_CON(0),
+ .div_core_shift = 0,
+ .div_core_mask = 0x1f,
+ .mux_core_shift = 7,
+};
+
+PNAME(mux_pll_p) = { "xin24m", "xin24m" };
+
+PNAME(mux_armclk_p) = { "apll", "gpll_armclk" };
+PNAME(mux_busclk_p) = { "apll", "dpll_cpu", "gpll_cpu" };
+PNAME(mux_ddrphy_p) = { "dpll_ddr", "gpll_ddr" };
+PNAME(mux_pll_src_3plls_p) = { "apll", "dpll", "gpll" };
+PNAME(mux_timer_p) = { "xin24m", "pclk_peri_src" };
+
+PNAME(mux_pll_src_apll_gpll_dpll_usb480m_p) = { "apll", "gpll", "dpll" "usb480m" };
+
+PNAME(mux_mmc_src_p) = { "apll", "gpll", "dpll", "xin24m" };
+PNAME(mux_i2s_pre_p) = { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" };
+PNAME(mux_i2s_clkout_p) = { "i2s_pre", "xin12m" };
+PNAME(mux_spdif_p) = { "spdif_src", "spdif_frac", "xin12m" };
+PNAME(mux_uart0_p) = { "uart0_src", "uart0_frac", "xin24m" };
+PNAME(mux_uart1_p) = { "uart1_src", "uart1_frac", "xin24m" };
+PNAME(mux_uart2_p) = { "uart2_src", "uart2_frac", "xin24m" };
+PNAME(mux_mac_p) = { "mac_pll_src", "ext_gmac" };
+PNAME(mux_dclk_p) = { "dclk_lcdc", "dclk_hdmi_src" };
+
+static struct rockchip_pll_clock rk3036_pll_clks[] __initdata = {
+ [apll] = PLL(pll_rk3036, PLL_APLL, "apll", mux_pll_p, 0, RK2928_PLL_CON(0),
+ RK2928_MODE_CON, 0, 10, 0, rk3036_pll_rates),
+ [dpll] = PLL(pll_rk3036, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4),
+ RK2928_MODE_CON, 4, 10, 0, NULL),
+ [gpll] = PLL(pll_rk3036, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12),
+ RK2928_MODE_CON, 12, 10, ROCKCHIP_PLL_SYNC_RATE, rk3036_pll_rates),
+};
+
+#define MFLAGS CLK_MUX_HIWORD_MASK
+#define DFLAGS CLK_DIVIDER_HIWORD_MASK
+#define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE)
+
+static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
+ /*
+ * Clock-Architecture Diagram 1
+ */
+
+ /* PD_CORE */
+ GATE(0, "gpll_armclk", "gpll", CLK_IGNORE_UNUSED,
+ RK2928_CLKGATE_CON(0), 6, GFLAGS),
+
+ /* PD_DDR */
+ GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED,
+ RK2928_CLKGATE_CON(0), 2, GFLAGS),
+ GATE(0, "gpll_ddr", "gpll", 0,
+ RK2928_CLKGATE_CON(0), 8, GFLAGS),
+ COMPOSITE_NOGATE(0, "ddrphy2x", mux_ddrphy_p, CLK_IGNORE_UNUSED,
+ RK2928_CLKSEL_CON(26), 8, 1, MFLAGS, 0, 2,
+ DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
+
+ /* PD_CORE */
+ COMPOSITE_NOMUX(0, "pclk_dbg", "armclk", CLK_IGNORE_UNUSED,
+ RK2928_CLKSEL_CON(1), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
+ RK2928_CLKGATE_CON(0), 7, GFLAGS),
+ COMPOSITE_NOMUX(0, "aclk_core_pre", "armclk", 0,
+ RK2928_CLKSEL_CON(1), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
+ RK2928_CLKGATE_CON(0), 7, GFLAGS),
+
+ /* PD_CPU (BUS) */
+ GATE(0, "dpll_cpu", "dpll", 0, RK2928_CLKGATE_CON(10), 8, GFLAGS),
+ GATE(0, "gpll_cpu", "gpll", 0, RK2928_CLKGATE_CON(0), 1, GFLAGS),
+ COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_busclk_p, 0,
+ RK2928_CLKSEL_CON(0), 14, 2, MFLAGS, 8, 5, DFLAGS),
+ GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_src", 0, RK2928_CLKGATE_CON(0), 3, GFLAGS),
+ COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_src", 0,
+ RK2928_CLKSEL_CON(1), 12, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
+ RK2928_CLKGATE_CON(0), 5, GFLAGS),
+ COMPOSITE_NOMUX(HCLK_CPU, "hclk_cpu", "aclk_cpu_src", 0,
+ RK2928_CLKSEL_CON(1), 8, 2, DFLAGS | CLK_DIVIDER_READ_ONLY,
+ RK2928_CLKGATE_CON(0), 4, GFLAGS),
+
+ /* PD_PERI */
+ COMPOSITE(0, "aclk_peri_src", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(10), 14, 2, MFLAGS, 0, 5, DFLAGS,
+ RK2928_CLKGATE_CON(2), 0, GFLAGS),
+
+ GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", 0,
+ RK2928_CLKGATE_CON(2), 1, GFLAGS),
+ /* pclk_peri_src is soure for timers */
+ DIV(0, "pclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED,
+ RK2928_CLKSEL_CON(10), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
+ GATE(PCLK_PERI, "pclk_peri", "pclk_peri_src", 0,
+ RK2928_CLKGATE_CON(2), 3, GFLAGS),
+ /* hclk_peri_src is soure for sclk_macref_out */
+ DIV(0, "hclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED,
+ RK2928_CLKSEL_CON(10), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
+ GATE(HCLK_PERI, "hclk_peri", "hclk_peri_src", 0,
+ RK2928_CLKGATE_CON(2), 2, GFLAGS),
+
+ /* PD_TIMER */
+ COMPOSITE_NODIV(SCLK_TIMER0, "sclk_timer0", mux_timer_p, 0,
+ RK2928_CLKSEL_CON(2), 4, 1, DFLAGS,
+ RK2928_CLKGATE_CON(1), 0, GFLAGS),
+ COMPOSITE_NODIV(SCLK_TIMER1, "sclk_timer1", mux_timer_p, 0,
+ RK2928_CLKSEL_CON(2), 5, 1, DFLAGS,
+ RK2928_CLKGATE_CON(1), 1, GFLAGS),
+ COMPOSITE_NODIV(SCLK_TIMER2, "sclk_timer2", mux_timer_p, 0,
+ RK2928_CLKSEL_CON(2), 6, 1, DFLAGS,
+ RK2928_CLKGATE_CON(2), 4, GFLAGS),
+ COMPOSITE_NODIV(SCLK_TIMER3, "sclk_timer3", mux_timer_p, 0,
+ RK2928_CLKSEL_CON(2), 7, 1, DFLAGS,
+ RK2928_CLKGATE_CON(2), 5, GFLAGS),
+
+ /* PD_UART */
+ MUX(0, "uart_pll_clk", mux_pll_src_apll_gpll_dpll_usb480m_p, 0,
+ RK2928_CLKSEL_CON(13), 10, 2, MFLAGS),
+ COMPOSITE_NOMUX(0, "uart0_src", "uart_pll_clk", 0,
+ RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
+ RK2928_CLKGATE_CON(1), 8, GFLAGS),
+ COMPOSITE_NOMUX(0, "uart1_src", "uart_pll_clk", 0,
+ RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
+ RK2928_CLKGATE_CON(1), 8, GFLAGS),
+ COMPOSITE_NOMUX(0, "uart2_src", "uart_pll_clk", 0,
+ RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
+ RK2928_CLKGATE_CON(1), 8, GFLAGS),
+ COMPOSITE_FRAC(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
+ RK2928_CLKSEL_CON(17), 0,
+ RK2928_CLKGATE_CON(1), 9, GFLAGS),
+ COMPOSITE_FRAC(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
+ RK2928_CLKSEL_CON(18), 0,
+ RK2928_CLKGATE_CON(1), 11, GFLAGS),
+ COMPOSITE_FRAC(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
+ RK2928_CLKSEL_CON(19), 0,
+ RK2928_CLKGATE_CON(1), 13, GFLAGS),
+ MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT,
+ RK2928_CLKSEL_CON(13), 8, 2, MFLAGS),
+ MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT,
+ RK2928_CLKSEL_CON(14), 8, 2, MFLAGS),
+ MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT,
+ RK2928_CLKSEL_CON(15), 8, 2, MFLAGS),
+
+ /* PD_VIDEO */
+ COMPOSITE(0, "aclk_vcodec", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(32), 14, 2, MFLAGS, 8, 5, DFLAGS,
+ RK2928_CLKGATE_CON(3), 11, GFLAGS),
+
+ COMPOSITE(0, "aclk_hvec", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(20), 0, 2, MFLAGS, 2, 5, DFLAGS,
+ RK2928_CLKGATE_CON(10), 6, GFLAGS),
+
+ /* PD_VIO */
+ COMPOSITE(0, "aclk_disp1_pre", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(31), 14, 2, MFLAGS, 8, 5, DFLAGS,
+ RK2928_CLKGATE_CON(1), 4, GFLAGS),
+ COMPOSITE(0, "hclk_disp_pre", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(30), 14, 2, MFLAGS, 8, 5, DFLAGS,
+ RK2928_CLKGATE_CON(0), 11, GFLAGS),
+ COMPOSITE(DCLK_LCDC, "dclk_lcdc", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(28), 0, 2, MFLAGS, 8, 8, DFLAGS,
+ RK2928_CLKGATE_CON(3), 2, GFLAGS),
+
+ /* MMC */
+ COMPOSITE_NODIV(0, "sclk_sdmmc_src", mux_mmc_src_p, 0,
+ RK2928_CLKSEL_CON(12), 8, 2, DFLAGS,
+ RK2928_CLKGATE_CON(2), 11, GFLAGS),
+ DIV(SCLK_SDMMC, "sclk_sdmmc", "sclk_sdmmc_src", 0,
+ RK2928_CLKSEL_CON(11), 0, 7, DFLAGS),
+
+ COMPOSITE_NODIV(0, "sclk_sdio_src", mux_mmc_src_p, 0,
+ RK2928_CLKSEL_CON(12), 10, 2, DFLAGS,
+ RK2928_CLKGATE_CON(2), 13, GFLAGS),
+ DIV(SCLK_SDIO, "sclk_sdio", "sclk_sdio_src", 0,
+ RK2928_CLKSEL_CON(11), 8, 7, DFLAGS),
+
+ COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, 0,
+ RK2928_CLKSEL_CON(12), 12, 2, MFLAGS, 0, 7, DFLAGS,
+ RK2928_CLKGATE_CON(2), 14, GFLAGS),
+
+ MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "sclk_sdmmc", RK3036_SDMMC_CON0, 1),
+ MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3036_SDMMC_CON1, 0),
+
+ MMC(SCLK_SDIO_DRV, "sdio_drv", "sclk_sdio", RK3036_SDIO_CON0, 1),
+ MMC(SCLK_SDIO_SAMPLE, "sdio_sample", "sclk_sdio", RK3036_SDIO_CON1, 0),
+
+ MMC(SCLK_EMMC_DRV, "emmc_drv", "sclk_emmc", RK3036_EMMC_CON0, 1),
+ MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "sclk_emmc", RK3036_EMMC_CON1, 0),
+
+ /* I2S */
+ COMPOSITE(0, "i2s_src", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(3), 14, 1, MFLAGS, 0, 7, DFLAGS,
+ RK2928_CLKGATE_CON(0), 9, GFLAGS),
+ COMPOSITE_FRAC(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT,
+ RK2928_CLKSEL_CON(7), 0,
+ RK2928_CLKGATE_CON(0), 10, GFLAGS),
+ MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT,
+ RK2928_CLKSEL_CON(3), 8, 2, MFLAGS),
+ COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_clkout", mux_i2s_clkout_p, 0,
+ RK2928_CLKSEL_CON(4), 12, 1, MFLAGS,
+ RK2928_CLKGATE_CON(0), 13, GFLAGS),
+ GATE(SCLK_I2S, "sclk_i2s", "i2s_pre", CLK_SET_RATE_PARENT,
+ RK2928_CLKGATE_CON(0), 14, GFLAGS),
+
+ COMPOSITE(0, "spdif_src", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(5), 10, 2, MFLAGS, 0, 7, DFLAGS,
+ RK2928_CLKGATE_CON(2), 10, GFLAGS),
+ COMPOSITE_FRAC(0, "spdif_frac", "spdif_src", 0,
+ RK2928_CLKSEL_CON(9), 0,
+ RK2928_CLKGATE_CON(2), 12, GFLAGS),
+ MUX(SCLK_SPDIF, "sclk_spdif", mux_spdif_p, 0,
+ RK2928_CLKSEL_CON(5), 8, 2, MFLAGS),
+ /* USB */
+ GATE(0, "hsicphy12m_xin12m", "xin12m", 0,
+ RK2928_CLKGATE_CON(1), 5, GFLAGS),
+
+ /* GPU */
+ COMPOSITE(SCLK_GPU, "sclk_gpu", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(34), 8, 2, MFLAGS, 0, 5, DFLAGS,
+ RK2928_CLKGATE_CON(3), 13, GFLAGS),
+
+ /* SPI */
+ COMPOSITE(SCLK_SPI, "sclk_spi", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(25), 8, 2, MFLAGS, 0, 7, DFLAGS,
+ RK2928_CLKGATE_CON(2), 9, GFLAGS),
+
+ /* NANDC */
+ COMPOSITE(SCLK_NANDC, "sclk_nandc", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(16), 8, 2, MFLAGS, 10, 5, DFLAGS,
+ RK2928_CLKGATE_CON(10), 4, GFLAGS),
+
+ /* SFC */
+ COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_apll_gpll_dpll_usb480m_p, 0,
+ RK2928_CLKSEL_CON(16), 0, 2, MFLAGS, 2, 5, DFLAGS,
+ RK2928_CLKGATE_CON(10), 5, GFLAGS),
+
+ /* MAC */
+ COMPOSITE_NOGATE(0, "mac_pll_src", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(21), 0, 2, MFLAGS, 4, 5, DFLAGS),
+ /* for clk_mac_ref & clk_mac_refout */
+ MUX(SCLK_MACREF, "mac_clk_ref", mux_mac_p, CLK_SET_RATE_PARENT,
+ RK2928_CLKSEL_CON(21), 3, 1, MFLAGS),
+
+ COMPOSITE_NOMUX(SCLK_MAC, "mac_clk", "mac_clk_ref", 0,
+ RK2928_CLKSEL_CON(21), 9, 5, DFLAGS,
+ RK2928_CLKGATE_CON(2), 6, GFLAGS),
+
+ /* HDMI */
+ /* total clks: pin_sys_clk / pin_sck / pin_mclk / pin_vclk / pin_vclk_pllref */
+ /* the same with dclk_lcdc */
+ COMPOSITE(0, "dclk_hdmi_src", mux_pll_src_3plls_p, 0,
+ RK2928_CLKSEL_CON(28), 0, 2, MFLAGS, 8, 8, DFLAGS,
+ RK2928_CLKGATE_CON(3), 2, GFLAGS),
+ /* hdmi dclk from dclk_lcdc directly */
+ MUX(SCLK_HDMI, "dclk_hdmi", mux_dclk_p, 0,
+ RK2928_CLKSEL_CON(31), 0, 1, MFLAGS),
+
+ /*
+ * Clock-Architecture Diagram 2
+ */
+
+ /* aclk_cpu gates */
+ GATE(0, "sclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 12, GFLAGS),
+ GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 10, GFLAGS),
+
+ /* hclk_cpu gates */
+ GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 6, GFLAGS),
+
+ /* pclk_cpu gates */
+ GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 4, GFLAGS),
+ GATE(PCLK_DDRUPCTL, "pclk_ddrupctl", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 7, GFLAGS),
+ GATE(ACLK_VCODEC, "pclk_acodec", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 14, GFLAGS),
+ GATE(PCLK_HDMI, "pclk_hdmi", "pclk_cpu", 0, RK2928_CLKGATE_CON(3), 8, GFLAGS),
+
+ /* aclk_vio gates */
+ GATE(ACLK_VIO, "aclk_vio", "aclk_disp1_pre", 0,
+ RK2928_CLKGATE_CON(6), 13, GFLAGS),
+ GATE(ACLK_LCDC, "aclk_lcdc", "aclk_disp1_pre", 0,
+ RK2928_CLKGATE_CON(9), 6, GFLAGS),
+
+ GATE(HCLK_VIO_BUS, "hclk_vio_bus", "hclk_disp_pre", 0,
+ RK2928_CLKGATE_CON(6), 12, GFLAGS),
+ GATE(HCLK_LCDC, "hclk_lcdc", "hclk_disp_pre", 0,
+ RK2928_CLKGATE_CON(9), 5, GFLAGS),
+
+ /* aclk_video gates */
+ GATE(HCLK_LCDC, "hclk_vcodec", "hclk_disp_pre", 0,
+ RK2928_CLKGATE_CON(3), 12, GFLAGS),
+
+ /* xin24m gates */
+ GATE(SCLK_PVTM_CORE, "sclk_pvtm_core", "xin24m", 0, RK2928_CLKGATE_CON(10), 0, GFLAGS),
+ GATE(SCLK_PVTM_GPU, "sclk_pvtm_gpu", "xin24m", 0, RK2928_CLKGATE_CON(10), 1, GFLAGS),
+
+ /* aclk_peri gates */
+ GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 3, GFLAGS),
+ GATE(0, "aclk_cpu_peri", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 2, GFLAGS),
+ GATE(ACLK_DMAC2, "aclk_dmac2", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 1, GFLAGS),
+ GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 15, GFLAGS),
+
+ /* hclk_peri gates */
+ GATE(0, "hclk_peri_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 0, GFLAGS),
+ GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 13, GFLAGS),
+ GATE(0, "hclk_peri_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 14, GFLAGS),
+ GATE(HCLK_NANDC, "hclk_nandc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 9, GFLAGS),
+ GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 10, GFLAGS),
+ GATE(HCLK_SDIO, "hclk_sdio", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 11, GFLAGS),
+ GATE(HCLK_EMMC, "hclk_emmc", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 0, GFLAGS),
+ GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 13, GFLAGS),
+ GATE(HCLK_OTG1, "hclk_otg1", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 13, GFLAGS),
+ GATE(HCLK_I2S, "hclk_i2s", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 2, GFLAGS),
+ GATE(0, "hclk_sfc", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 14, GFLAGS),
+ GATE(0, "hclk_mac", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 15, GFLAGS),
+
+ /* pclk_peri gates */
+ GATE(0, "pclk_peri_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 1, GFLAGS),
+ GATE(0, "pclk_efuse", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 2, GFLAGS),
+ GATE(PCLK_TIMER, "pclk_timer0", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 7, GFLAGS),
+ GATE(PCLK_PWM, "pclk_pwm", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 10, GFLAGS),
+ GATE(PCLK_SPI, "pclk_spi", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 12, GFLAGS),
+ GATE(PCLK_WDT, "pclk_wdt", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 15, GFLAGS),
+ GATE(PCLK_UART0, "pclk_uart0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 0, GFLAGS),
+ GATE(PCLK_UART1, "pclk_uart1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 1, GFLAGS),
+ GATE(PCLK_UART2, "pclk_uart2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 2, GFLAGS),
+ GATE(PCLK_I2C0, "pclk_i2c0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 4, GFLAGS),
+ GATE(PCLK_I2C1, "pclk_i2c1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 5, GFLAGS),
+ GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 6, GFLAGS),
+ GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 9, GFLAGS),
+ GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 10, GFLAGS),
+ GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 11, GFLAGS),
+};
+
+static const char *const rk3036_critical_clocks[] __initconst = {
+ "aclk_cpu",
+ "aclk_peri",
+ "hclk_peri",
+};
+
+#ifdef CONFIG_PM_SLEEP
+static void __iomem *rk3036_cru_base;
+
+/* Some CRU registers will be reset in maskrom when the system
+ * wakes up from fastboot.
+ * So save them before suspend, restore them after resume.
+ */
+
+static int rk3036_clk_suspend(void)
+{
+ /* TODO */
+
+ return 0;
+}
+
+static void rk3036_clk_resume(void)
+{
+ /* TODO */
+}
+
+static struct syscore_ops rk3036_clk_syscore_ops = {
+ .suspend = rk3036_clk_suspend,
+ .resume = rk3036_clk_resume,
+};
+
+static void rk3036_clk_sleep_init(void __iomem *reg_base)
+{
+ rk3036_cru_base = reg_base;
+ register_syscore_ops(&rk3036_clk_syscore_ops);
+}
+
+#else /* CONFIG_PM_SLEEP */
+static void rk3036_clk_sleep_init(void __iomem *reg_base) {}
+#endif
+
+static void __init rk3036_clk_init(struct device_node *np)
+{
+ void __iomem *reg_base;
+ struct clk *clk;
+
+ reg_base = of_iomap(np, 0);
+ if (!reg_base) {
+ pr_err("%s: could not map cru region\n", __func__);
+ return;
+ }
+
+ rockchip_clk_init(np, reg_base, CLK_NR_CLKS);
+
+ /* xin12m is created by an cru-internal divider */
+ clk = clk_register_fixed_factor(NULL, "xin12m", "xin24m", 0, 1, 2);
+ if (IS_ERR(clk))
+ pr_warn("%s: could not register clock xin12m: %ld\n",
+ __func__, PTR_ERR(clk));
+
+ clk = clk_register_fixed_factor(NULL, "usb480m", "xin24m", 0, 20, 1);
+ if (IS_ERR(clk))
+ pr_warn("%s: could not register clock usb480m: %ld\n",
+ __func__, PTR_ERR(clk));
+
+ clk = clk_register_fixed_factor(NULL, "ddrphy", "ddrphy2x", 0, 1, 2);
+ if (IS_ERR(clk))
+ pr_warn("%s: could not register clock ddrphy: %ld\n",
+ __func__, PTR_ERR(clk));
+
+ clk = clk_register_fixed_factor(NULL, "hclk_vcodec_pre",
+ "aclk_vcodec", 0, 1, 4);
+ if (IS_ERR(clk))
+ pr_warn("%s: could not register clock hclk_vcodec_pre: %ld\n",
+ __func__, PTR_ERR(clk));
+
+ clk = clk_register_fixed_factor(NULL, "sclk_macref_out",
+ "hclk_peri_src", 0, 1, 2);
+ if (IS_ERR(clk))
+ pr_warn("%s: could not register clock sclk_macref_out: %ld\n",
+ __func__, PTR_ERR(clk));
+
+ rockchip_clk_register_plls(rk3036_pll_clks,
+ ARRAY_SIZE(rk3036_pll_clks),
+ -1);
+ rockchip_clk_register_branches(rk3036_clk_branches,
+ ARRAY_SIZE(rk3036_clk_branches));
+ rockchip_clk_protect_critical(rk3036_critical_clocks,
+ ARRAY_SIZE(rk3036_critical_clocks));
+
+ rockchip_clk_register_armclk(ARMCLK, "armclk",
+ mux_armclk_p, ARRAY_SIZE(mux_armclk_p),
+ &rk3036_cpuclk_data, rk3036_cpuclk_rates,
+ ARRAY_SIZE(rk3036_cpuclk_rates));
+
+ rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0),
+ ROCKCHIP_SOFTRST_HIWORD_MASK);
+
+ rockchip_register_restart_notifier(RK2928_GLB_SRST_FST);
+ rk3036_clk_sleep_init(reg_base);
+}
+CLK_OF_DECLARE(rk3036_cru, "rockchip,rk3036-cru", rk3036_clk_init);
diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h
index dc8ecb2..6603c07 100644
--- a/drivers/clk/rockchip/clk.h
+++ b/drivers/clk/rockchip/clk.h
@@ -2,6 +2,9 @@
* Copyright (c) 2014 MundoReader S.L.
* Author: Heiko Stuebner <heiko@xxxxxxxxx>
*
+ * Copyright (c) 2015 Rockchip Electronics Co. Ltd.
+ * Author: Xing Zheng <zhengxing@xxxxxxxxxxxxxx>
+ *
* based on
*
* samsung/clk.h
@@ -40,6 +43,13 @@ struct clk;
#define RK2928_SOFTRST_CON(x) ((x) * 0x4 + 0x110)
#define RK2928_MISC_CON 0x134
+#define RK3036_SDMMC_CON0 0x144
+#define RK3036_SDMMC_CON1 0x148
+#define RK3036_SDIO_CON0 0x14c
+#define RK3036_SDIO_CON1 0x150
+#define RK3036_EMMC_CON0 0x154
+#define RK3036_EMMC_CON1 0x158
+
#define RK3288_PLL_CON(x) RK2928_PLL_CON(x)
#define RK3288_MODE_CON 0x50
#define RK3288_CLKSEL_CON(x) ((x) * 0x4 + 0x60)
@@ -75,6 +85,7 @@ struct clk;
enum rockchip_pll_type {
pll_rk3066,
+ pll_rk3036,
};
#define RK3066_PLL_RATE(_rate, _nr, _nf, _no) \
@@ -95,12 +106,31 @@ enum rockchip_pll_type {
.nb = _nb, \
}
+#define RK3036_PLL_RATE(_rate, _refdiv, _fbdiv, _postdiv1, \
+ _postdiv2, _dsmpd, _frac) \
+{ \
+ .rate = _rate##U, \
+ .fbdiv = _fbdiv, \
+ .postdiv1 = _postdiv1, \
+ .refdiv = _refdiv, \
+ .postdiv2 = _postdiv2, \
+ .dsmpd = _dsmpd, \
+ .frac = _frac, \
+}
+
struct rockchip_pll_rate_table {
unsigned long rate;
unsigned int nr;
unsigned int nf;
unsigned int no;
unsigned int nb;
+ /* for RK3036 */
+ unsigned int fbdiv;
+ unsigned int postdiv1;
+ unsigned int refdiv;
+ unsigned int postdiv2;
+ unsigned int dsmpd;
+ unsigned int frac;
};
/**
diff --git a/include/dt-bindings/clock/rk3036-cru.h b/include/dt-bindings/clock/rk3036-cru.h
new file mode 100644
index 0000000..085e4c3
--- /dev/null
+++ b/include/dt-bindings/clock/rk3036-cru.h
@@ -0,0 +1,247 @@
+/*
+ * Copyright (c) 2014 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko@xxxxxxxxx>
+ *
+ * Copyright (c) 2015 Rockchip Electronics Co. Ltd.
+ * Author: Xing Zheng <zhengxing@xxxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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.
+ */
+
+/* core clocks */
+#define PLL_APLL 1
+#define PLL_DPLL 2
+#define PLL_GPLL 3
+#define ARMCLK 4
+
+/* sclk gates (special clocks) */
+#define SCLK_GPU 64
+#define SCLK_SPI 65
+#define SCLK_SDMMC 68
+#define SCLK_SDIO 69
+#define SCLK_EMMC 71
+#define SCLK_NANDC 76
+#define SCLK_UART0 77
+#define SCLK_UART1 78
+#define SCLK_UART2 79
+#define SCLK_I2S 82
+#define SCLK_SPDIF 83
+#define SCLK_TIMER0 85
+#define SCLK_TIMER1 86
+#define SCLK_TIMER2 87
+#define SCLK_TIMER3 88
+#define SCLK_OTGPHY0 93
+#define SCLK_OTGPHY1 94
+#define SCLK_LCDC 100
+#define SCLK_HDMI 109
+#define SCLK_HEVC 111
+#define SCLK_I2S_OUT 113
+#define SCLK_SDMMC_DRV 114
+#define SCLK_SDIO_DRV 115
+#define SCLK_EMMC_DRV 117
+#define SCLK_SDMMC_SAMPLE 118
+#define SCLK_SDIO_SAMPLE 119
+#define SCLK_EMMC_SAMPLE 121
+#define SCLK_PVTM_CORE 123
+#define SCLK_PVTM_GPU 124
+#define SCLK_PVTM_VIDEO 125
+#define SCLK_MAC 151
+#define SCLK_MACREF 152
+#define SCLK_SFC 160
+
+#define DCLK_LCDC 190
+
+/* aclk gates */
+#define ACLK_DMAC2 194
+#define ACLK_LCDC 197
+#define ACLK_VIO 203
+#define ACLK_VCODEC 208
+#define ACLK_CPU 209
+#define ACLK_PERI 210
+
+/* pclk gates */
+#define PCLK_GPIO0 320
+#define PCLK_GPIO1 321
+#define PCLK_GPIO2 322
+#define PCLK_GRF 329
+#define PCLK_I2C0 332
+#define PCLK_I2C1 333
+#define PCLK_I2C2 334
+#define PCLK_SPI 338
+#define PCLK_UART0 341
+#define PCLK_UART1 342
+#define PCLK_UART2 343
+#define PCLK_PWM 350
+#define PCLK_TIMER 353
+#define PCLK_HDMI 360
+#define PCLK_CPU 362
+#define PCLK_PERI 363
+#define PCLK_DDRUPCTL 364
+#define PCLK_WDT 368
+
+/* hclk gates */
+#define HCLK_OTG0 449
+#define HCLK_OTG1 450
+#define HCLK_NANDC 453
+#define HCLK_SDMMC 456
+#define HCLK_SDIO 457
+#define HCLK_EMMC 459
+#define HCLK_I2S 462
+#define HCLK_LCDC 465
+#define HCLK_ROM 467
+#define HCLK_VIO_BUS 472
+#define HCLK_VCODEC 476
+#define HCLK_CPU 477
+#define HCLK_PERI 478
+
+#define CLK_NR_CLKS (HCLK_PERI + 1)
+
+/* soft-reset indices */
+#define SRST_CORE0 0
+#define SRST_CORE1 1
+#define SRST_0RES2 2
+#define SRST_0RES3 3
+#define SRST_CORE0_DBG 4
+#define SRST_CORE1_DBG 5
+#define SRST_0RES6 6
+#define SRST_0RES7 7
+#define SRST_CORE0_POR 8
+#define SRST_CORE1_POR 9
+#define SRST_0RES10 10
+#define SRST_0RES11 11
+#define SRST_L2C 12
+#define SRST_TOPDBG 13
+#define SRST_STRC_SYS_A 14
+#define SRST_PD_CORE_NIU 15
+
+#define SRST_TIMER2 16
+#define SRST_CPUSYS_H 17
+#define SRST_1RES2 18
+#define SRST_AHB2APB_H 19
+#define SRST_TIMER3 20
+#define SRST_INTMEM 21
+#define SRST_ROM 22
+#define SRST_PERI_NIU 23
+#define SRST_I2S 24
+#define SRST_DDR_PLL 25
+#define SRST_GPU_DLL 26
+#define SRST_TIMER0 27
+#define SRST_TIMER1 28
+#define SRST_CORE_DLL 29
+#define SRST_EFUSE_P 30
+#define SRST_ACODEC_P 31
+
+#define SRST_GPIO0 32
+#define SRST_GPIO1 33
+#define SRST_GPIO2 34
+#define SRST_2RES3 35
+#define SRST_2RES4 36
+#define SRST_2RES5 37
+#define SRST_2RES6 38
+#define SRST_UART0 39
+#define SRST_UART1 40
+#define SRST_UART2 41
+#define SRST_2RES10 42
+#define SRST_I2C0 43
+#define SRST_I2C1 44
+#define SRST_I2C2 45
+#define SRST_2RES14 46
+#define SRST_SFC 47
+
+#define SRST_PWM0 48
+#define SRST_3RES1 49
+#define SRST_3RES2 50
+#define SRST_DAP 51
+#define SRST_DAP_SYS 52
+#define SRST_3RES5 53
+#define SRST_3RES6 54
+#define SRST_GRF 55
+#define SRST_3RES8 56
+#define SRST_PERIPHSYS_A 57
+#define SRST_PERIPHSYS_H 58
+#define SRST_PERIPHSYS_P 59
+#define SRST_3RES12 60
+#define SRST_CPU_PERI 61
+#define SRST_EMEM_PERI 62
+#define SRST_USB_PERI 63
+
+#define SRST_DMA2 64
+#define SRST_4RES1 65
+#define SRST_MAC 66
+#define SRST_4RES3 67
+#define SRST_NANDC 68
+#define SRST_USBOTG0 69
+#define SRST_4RES6 70
+#define SRST_OTGC0 71
+#define SRST_USBOTG1 72
+#define SRST_4RES9 73
+#define SRST_OTGC1 74
+#define SRST_4RES11 75
+#define SRST_4RES12 76
+#define SRST_4RES13 77
+#define SRST_4RES14 78
+#define SRST_DDRMSCH 79
+
+#define SRST_5RES0 80
+#define SRST_MMC0 81
+#define SRST_SDIO 82
+#define SRST_EMMC 83
+#define SRST_SPI0 84
+#define SRST_5RES5 85
+#define SRST_WDT 86
+#define SRST_5RES7 87
+#define SRST_DDRPHY 88
+#define SRST_DDRPHY_P 89
+#define SRST_DDRCTRL 90
+#define SRST_DDRCTRL_P 91
+#define SRST_5RES12 92
+#define SRST_5RES13 93
+#define SRST_5RES14 94
+#define SRST_5RES15 95
+
+#define SRST_HDMI_P 96
+#define SRST_6RES1 97
+#define SRST_6RES2 98
+#define SRST_VIO_BUS_H 99
+#define SRST_6RES4 100
+#define SRST_6RES5 101
+#define SRST_6RES6 102
+#define SRST_UTMI0 103
+#define SRST_UTMI1 104
+#define SRST_USBPOR 105
+#define SRST_6RES10 106
+#define SRST_6RES11 107
+#define SRST_6RES12 108
+#define SRST_6RES13 109
+#define SRST_6RES14 110
+#define SRST_6RES15 111
+
+#define SRST_VCODEC_A 112
+#define SRST_VCODEC_H 113
+#define SRST_VIO1_A 114
+#define SRST_HEVC 115
+#define SRST_VCODEC_NIU_A 116
+#define SRST_LCDC1_A 117
+#define SRST_LCDC1_H 118
+#define SRST_LCDC1_D 119
+#define SRST_GPU 120
+#define SRST_7RES9 121
+#define SRST_GPU_NIU_A 122
+#define SRST_7RES11 123
+#define SRST_7RES12 124
+#define SRST_7RES13 125
+#define SRST_7RES14 126
+#define SRST_7RES15 127
+
+#define SRST_8RES0 128
+#define SRST_8RES1 129
+#define SRST_8RES2 130
+#define SRST_DBG_P 131
--
1.7.9.5
--
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