Commit eaaa6fb5 authored by Michael Turquette's avatar Michael Turquette

Merge tag 'v4.5-rockchip-clk1_1' of...

Merge tag 'v4.5-rockchip-clk1_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Rockchip clock changes for 4.5 containing
- a new pll-type used on rk3036 and other Cortex-A7 socs
- new clock-trees for rk3036 and rk3228
- switch rk3288 plls to slow mode on reboot
- a bunch of new clock ids
- some more critical clocks
- wrong register offsets for the rk3368 cpuclks
- allowing more than 2 parents for the cpuclk
parents d90e1496 dfff24bd
* Rockchip RK3036 Clock and Reset Unit
The RK3036 clock controller generates and supplies clock to various
controllers within the SoC and also implements a reset controller for SoC
peripherals.
Required Properties:
- compatible: should be "rockchip,rk3036-cru"
- reg: physical base address of the controller and length of memory mapped
region.
- #clock-cells: should be 1.
- #reset-cells: should be 1.
Optional Properties:
- rockchip,grf: phandle to the syscon managing the "general register files"
If missing pll rates are not changeable, due to the missing pll lock status.
Each clock is assigned an identifier and client nodes can use this identifier
to specify the clock which they consume. All available clocks are defined as
preprocessor macros in the dt-bindings/clock/rk3036-cru.h headers and can be
used in device tree sources. Similar macros exist for the reset sources in
these files.
External clocks:
There are several clocks that are generated outside the SoC. It is expected
that they are defined using standard clock bindings with following
clock-output-names:
- "xin24m" - crystal input - required,
- "ext_i2s" - external I2S clock - optional,
- "ext_gmac" - external GMAC clock - optional
Example: Clock controller node:
cru: cru@20000000 {
compatible = "rockchip,rk3036-cru";
reg = <0x20000000 0x1000>;
rockchip,grf = <&grf>;
#clock-cells = <1>;
#reset-cells = <1>;
};
Example: UART controller node that consumes the clock generated by the clock
controller:
uart0: serial@20060000 {
compatible = "snps,dw-apb-uart";
reg = <0x20060000 0x100>;
interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&cru SCLK_UART0>;
};
* Rockchip RK3228 Clock and Reset Unit
The RK3228 clock controller generates and supplies clock to various
controllers within the SoC and also implements a reset controller for SoC
peripherals.
Required Properties:
- compatible: should be "rockchip,rk3228-cru"
- reg: physical base address of the controller and length of memory mapped
region.
- #clock-cells: should be 1.
- #reset-cells: should be 1.
Optional Properties:
- rockchip,grf: phandle to the syscon managing the "general register files"
If missing pll rates are not changeable, due to the missing pll lock status.
Each clock is assigned an identifier and client nodes can use this identifier
to specify the clock which they consume. All available clocks are defined as
preprocessor macros in the dt-bindings/clock/rk3228-cru.h headers and can be
used in device tree sources. Similar macros exist for the reset sources in
these files.
External clocks:
There are several clocks that are generated outside the SoC. It is expected
that they are defined using standard clock bindings with following
clock-output-names:
- "xin24m" - crystal input - required,
- "ext_i2s" - external I2S clock - optional,
- "ext_gmac" - external GMAC clock - optional
- "ext_hsadc" - external HSADC clock - optional
- "phy_50m_out" - output clock of the pll in the mac phy
Example: Clock controller node:
cru: cru@20000000 {
compatible = "rockchip,rk3228-cru";
reg = <0x20000000 0x1000>;
rockchip,grf = <&grf>;
#clock-cells = <1>;
#reset-cells = <1>;
};
Example: UART controller node that consumes the clock generated by the clock
controller:
uart0: serial@10110000 {
compatible = "snps,dw-apb-uart";
reg = <0x10110000 0x100>;
interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&cru SCLK_UART0>;
};
......@@ -10,6 +10,8 @@ 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-rk3228.o
obj-y += clk-rk3288.o
obj-y += clk-rk3368.o
......@@ -242,8 +242,8 @@ struct clk *rockchip_clk_register_cpuclk(const char *name,
struct clk *clk, *cclk;
int ret;
if (num_parents != 2) {
pr_err("%s: needs two parent clocks\n", __func__);
if (num_parents < 2) {
pr_err("%s: needs at least two parent clocks\n", __func__);
return ERR_PTR(-EINVAL);
}
......
......@@ -2,6 +2,9 @@
* Copyright (c) 2014 MundoReader S.L.
* Author: Heiko Stuebner <heiko@sntech.de>
*
* Copyright (c) 2015 Rockchip Electronics Co. Ltd.
* Author: Xing Zheng <zhengxing@rock-chips.com>
*
* 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
......@@ -19,6 +22,7 @@
#include <linux/delay.h>
#include <linux/clk-provider.h>
#include <linux/regmap.h>
#include <linux/clk.h>
#include "clk.h"
#define PLL_MODE_MASK 0x3
......@@ -107,6 +111,252 @@ static int rockchip_pll_wait_lock(struct rockchip_clk_pll *pll)
return -ETIMEDOUT;
}
/**
* PLL used in RK3036
*/
#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_PLLCON1_PWRDOWN (1 << 13)
static void rockchip_rk3036_pll_get_params(struct rockchip_clk_pll *pll,
struct rockchip_pll_rate_table *rate)
{
u32 pllcon;
pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(0));
rate->fbdiv = ((pllcon >> RK3036_PLLCON0_FBDIV_SHIFT)
& RK3036_PLLCON0_FBDIV_MASK);
rate->postdiv1 = ((pllcon >> RK3036_PLLCON0_POSTDIV1_SHIFT)
& RK3036_PLLCON0_POSTDIV1_MASK);
pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(1));
rate->refdiv = ((pllcon >> RK3036_PLLCON1_REFDIV_SHIFT)
& RK3036_PLLCON1_REFDIV_MASK);
rate->postdiv2 = ((pllcon >> RK3036_PLLCON1_POSTDIV2_SHIFT)
& RK3036_PLLCON1_POSTDIV2_MASK);
rate->dsmpd = ((pllcon >> RK3036_PLLCON1_DSMPD_SHIFT)
& RK3036_PLLCON1_DSMPD_MASK);
pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(2));
rate->frac = ((pllcon >> RK3036_PLLCON2_FRAC_SHIFT)
& RK3036_PLLCON2_FRAC_MASK);
}
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);
struct rockchip_pll_rate_table cur;
u64 rate64 = prate;
rockchip_rk3036_pll_get_params(pll, &cur);
rate64 *= cur.fbdiv;
do_div(rate64, cur.refdiv);
if (cur.dsmpd == 0) {
/* fractional mode */
u64 frac_rate64 = prate * cur.frac;
do_div(frac_rate64, cur.refdiv);
rate64 += frac_rate64 >> 24;
}
do_div(rate64, cur.postdiv1);
do_div(rate64, cur.postdiv2);
return (unsigned long)rate64;
}
static int rockchip_rk3036_pll_set_params(struct rockchip_clk_pll *pll,
const struct rockchip_pll_rate_table *rate)
{
const struct clk_ops *pll_mux_ops = pll->pll_mux_ops;
struct clk_mux *pll_mux = &pll->pll_mux;
struct rockchip_pll_rate_table cur;
u32 pllcon;
int rate_change_remuxed = 0;
int cur_parent;
int ret;
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);
rockchip_rk3036_pll_get_params(pll, &cur);
cur.rate = 0;
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;
}
/* 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));
/* GPLL CON2 is not HIWORD_MASK */
pllcon = readl_relaxed(pll->reg_base + RK3036_PLLCON(2));
pllcon &= ~(RK3036_PLLCON2_FRAC_MASK << RK3036_PLLCON2_FRAC_SHIFT);
pllcon |= rate->frac << RK3036_PLLCON2_FRAC_SHIFT;
writel_relaxed(pllcon, pll->reg_base + RK3036_PLLCON(2));
/* wait for the pll to lock */
ret = rockchip_pll_wait_lock(pll);
if (ret) {
pr_warn("%s: pll update unsucessful, trying to restore old params\n",
__func__);
rockchip_rk3036_pll_set_params(pll, &cur);
}
if (rate_change_remuxed)
pll_mux_ops->set_parent(&pll_mux->hw, PLL_MODE_NORM);
return ret;
}
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();
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;
}
return rockchip_rk3036_pll_set_params(pll, rate);
}
static int rockchip_rk3036_pll_enable(struct clk_hw *hw)
{
struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw);
writel(HIWORD_UPDATE(0, RK3036_PLLCON1_PWRDOWN, 0),
pll->reg_base + RK3036_PLLCON(1));
return 0;
}
static void rockchip_rk3036_pll_disable(struct clk_hw *hw)
{
struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw);
writel(HIWORD_UPDATE(RK3036_PLLCON1_PWRDOWN,
RK3036_PLLCON1_PWRDOWN, 0),
pll->reg_base + RK3036_PLLCON(1));
}
static int rockchip_rk3036_pll_is_enabled(struct clk_hw *hw)
{
struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw);
u32 pllcon = readl(pll->reg_base + RK3036_PLLCON(1));
return !(pllcon & RK3036_PLLCON1_PWRDOWN);
}
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;
struct rockchip_pll_rate_table cur;
unsigned long drate;
if (!(pll->flags & ROCKCHIP_PLL_SYNC_RATE))
return;
drate = clk_hw_get_rate(hw);
rate = rockchip_get_pll_settings(pll, drate);
/* when no rate setting for the current rate, rely on clk_set_rate */
if (!rate)
return;
rockchip_rk3036_pll_get_params(pll, &cur);
pr_debug("%s: pll %s@%lu: Hz\n", __func__, __clk_get_name(hw->clk),
drate);
pr_debug("old - fbdiv: %d, postdiv1: %d, refdiv: %d, postdiv2: %d, dsmpd: %d, frac: %d\n",
cur.fbdiv, cur.postdiv1, cur.refdiv, cur.postdiv2,
cur.dsmpd, cur.frac);
pr_debug("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 != cur.fbdiv || rate->postdiv1 != cur.postdiv1 ||
rate->refdiv != cur.refdiv || rate->postdiv2 != cur.postdiv2 ||
rate->dsmpd != cur.dsmpd || rate->frac != cur.frac) {
struct clk *parent = clk_get_parent(hw->clk);
if (!parent) {
pr_warn("%s: parent of %s not available\n",
__func__, __clk_get_name(hw->clk));
return;
}
pr_debug("%s: pll %s: rate params do not match rate table, adjusting\n",
__func__, __clk_get_name(hw->clk));
rockchip_rk3036_pll_set_params(pll, rate);
}
}
static const struct clk_ops rockchip_rk3036_pll_clk_norate_ops = {
.recalc_rate = rockchip_rk3036_pll_recalc_rate,
.enable = rockchip_rk3036_pll_enable,
.disable = rockchip_rk3036_pll_disable,
.is_enabled = rockchip_rk3036_pll_is_enabled,
};
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,
.enable = rockchip_rk3036_pll_enable,
.disable = rockchip_rk3036_pll_disable,
.is_enabled = rockchip_rk3036_pll_is_enabled,
.init = rockchip_rk3036_pll_init,
};
/**
* PLL used in RK3066, RK3188 and RK3288
*/
......@@ -376,7 +626,7 @@ 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_rk3036 || pll_type == pll_rk3066)
pll_mux->flags |= CLK_MUX_HIWORD_MASK;
/* the actual muxing is xin24m, pll-output, xin32k */
......@@ -421,6 +671,12 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type,
}
switch (pll_type) {
case pll_rk3036:
if (!pll->rate_table)
init.ops = &rockchip_rk3036_pll_clk_norate_ops;
else
init.ops = &rockchip_rk3036_pll_clk_ops;
break;
case pll_rk3066:
if (!pll->rate_table)
init.ops = &rockchip_rk3066_pll_clk_norate_ops;
......
This diff is collapsed.
......@@ -750,7 +750,7 @@ static void __init rk3188_common_clk_init(struct device_node *np)
rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0),
ROCKCHIP_SOFTRST_HIWORD_MASK);
rockchip_register_restart_notifier(RK2928_GLB_SRST_FST);
rockchip_register_restart_notifier(RK2928_GLB_SRST_FST, NULL);
}
static void __init rk3066a_clk_init(struct device_node *np)
......
This diff is collapsed.
......@@ -295,7 +295,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
RK3288_CLKGATE_CON(0), 4, GFLAGS),
GATE(0, "c2c_host", "aclk_cpu_src", 0,
RK3288_CLKGATE_CON(13), 8, GFLAGS),
COMPOSITE_NOMUX(0, "crypto", "aclk_cpu_pre", 0,
COMPOSITE_NOMUX(SCLK_CRYPTO, "crypto", "aclk_cpu_pre", 0,
RK3288_CLKSEL_CON(26), 6, 2, DFLAGS,
RK3288_CLKGATE_CON(5), 4, GFLAGS),
GATE(0, "aclk_bus_2pmu", "aclk_cpu_pre", CLK_IGNORE_UNUSED,
......@@ -644,10 +644,10 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
GATE(PCLK_PUBL0, "pclk_publ0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 15, GFLAGS),
GATE(PCLK_DDRUPCTL1, "pclk_ddrupctl1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 0, GFLAGS),
GATE(PCLK_PUBL1, "pclk_publ1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 1, GFLAGS),
GATE(0, "pclk_efuse_1024", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 2, GFLAGS),
GATE(PCLK_EFUSE1024, "pclk_efuse_1024", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 2, GFLAGS),
GATE(PCLK_TZPC, "pclk_tzpc", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 3, GFLAGS),
GATE(PCLK_UART2, "pclk_uart2", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 9, GFLAGS),
GATE(0, "pclk_efuse_256", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 10, GFLAGS),
GATE(PCLK_EFUSE256, "pclk_efuse_256", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 10, GFLAGS),
GATE(PCLK_RKPWM, "pclk_rkpwm", "pclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 11, GFLAGS),
/* ddrctrl [DDR Controller PHY clock] gates */
......@@ -709,7 +709,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
GATE(SCLK_LCDC_PWM1, "sclk_lcdc_pwm1", "xin24m", 0, RK3288_CLKGATE_CON(13), 11, GFLAGS),
GATE(SCLK_PVTM_CORE, "sclk_pvtm_core", "xin24m", 0, RK3288_CLKGATE_CON(5), 9, GFLAGS),
GATE(SCLK_PVTM_GPU, "sclk_pvtm_gpu", "xin24m", 0, RK3288_CLKGATE_CON(5), 10, GFLAGS),
GATE(0, "sclk_mipidsi_24m", "xin24m", 0, RK3288_CLKGATE_CON(5), 15, GFLAGS),
GATE(SCLK_MIPIDSI_24M, "sclk_mipidsi_24m", "xin24m", 0, RK3288_CLKGATE_CON(5), 15, GFLAGS),
/* sclk_gpu gates */
GATE(ACLK_GPU, "aclk_gpu", "sclk_gpu", 0, RK3288_CLKGATE_CON(18), 0, GFLAGS),
......@@ -783,10 +783,10 @@ static const char *const rk3288_critical_clocks[] __initconst = {
"pclk_pd_pmu",
};
#ifdef CONFIG_PM_SLEEP
static void __iomem *rk3288_cru_base;
/* Some CRU registers will be reset in maskrom when the system
/*
* Some CRU registers will be reset in maskrom when the system
* wakes up from fastboot.
* So save them before suspend, restore them after resume.
*/
......@@ -840,33 +840,27 @@ static void rk3288_clk_resume(void)
}
}
static void rk3288_clk_shutdown(void)
{
writel_relaxed(0xf3030000, rk3288_cru_base + RK3288_MODE_CON);
}
static struct syscore_ops rk3288_clk_syscore_ops = {
.suspend = rk3288_clk_suspend,
.resume = rk3288_clk_resume,
};
static void rk3288_clk_sleep_init(void __iomem *reg_base)
{
rk3288_cru_base = reg_base;
register_syscore_ops(&rk3288_clk_syscore_ops);
}
#else /* CONFIG_PM_SLEEP */
static void rk3288_clk_sleep_init(void __iomem *reg_base) {}
#endif
static void __init rk3288_clk_init(struct device_node *np)
{
void __iomem *reg_base;
struct clk *clk;
reg_base = of_iomap(np, 0);
if (!reg_base) {
rk3288_cru_base = of_iomap(np, 0);
if (!rk3288_cru_base) {
pr_err("%s: could not map cru region\n", __func__);
return;
}
rockchip_clk_init(np, reg_base, CLK_NR_CLKS);
rockchip_clk_init(np, rk3288_cru_base, CLK_NR_CLKS);
/* xin12m is created by an cru-internal divider */
clk = clk_register_fixed_factor(NULL, "xin12m", "xin24m", 0, 1, 2);
......@@ -907,10 +901,12 @@ static void __init rk3288_clk_init(struct device_node *np)
&rk3288_cpuclk_data, rk3288_cpuclk_rates,
ARRAY_SIZE(rk3288_cpuclk_rates));
rockchip_register_softrst(np, 12, reg_base + RK3288_SOFTRST_CON(0),
rockchip_register_softrst(np, 12,
rk3288_cru_base + RK3288_SOFTRST_CON(0),
ROCKCHIP_SOFTRST_HIWORD_MASK);
rockchip_register_restart_notifier(RK3288_GLB_SRST_FST);
rk3288_clk_sleep_init(reg_base);
rockchip_register_restart_notifier(RK3288_GLB_SRST_FST,
rk3288_clk_shutdown);
register_syscore_ops(&rk3288_clk_syscore_ops);
}
CLK_OF_DECLARE(rk3288_cru, "rockchip,rk3288-cru", rk3288_clk_init);
......@@ -184,13 +184,13 @@ static const struct rockchip_cpuclk_reg_data rk3368_cpuclkl_data = {
#define RK3368_CLKSEL0(_offs, _aclkm) \
{ \
.reg = RK3288_CLKSEL_CON(0 + _offs), \
.reg = RK3368_CLKSEL_CON(0 + _offs), \
.val = HIWORD_UPDATE(_aclkm, RK3368_DIV_ACLKM_MASK, \
RK3368_DIV_ACLKM_SHIFT), \
}
#define RK3368_CLKSEL1(_offs, _atclk, _pdbg) \
{ \
.reg = RK3288_CLKSEL_CON(1 + _offs), \
.reg = RK3368_CLKSEL_CON(1 + _offs), \
.val = HIWORD_UPDATE(_atclk, RK3368_DIV_ATCLK_MASK, \
RK3368_DIV_ATCLK_SHIFT) | \
HIWORD_UPDATE(_pdbg, RK3368_DIV_PCLK_DBG_MASK, \
......@@ -819,6 +819,13 @@ static struct rockchip_clk_branch rk3368_clk_branches[] __initdata = {
};
static const char *const rk3368_critical_clocks[] __initconst = {
"aclk_bus",
"aclk_peri",
/*
* pwm1 supplies vdd_logic on a lot of boards, is currently unhandled
* but needs to stay enabled there (including its parents) at all times.
*/
"pclk_pwm1",
"pclk_pd_pmu",
};
......@@ -882,6 +889,6 @@ static void __init rk3368_clk_init(struct device_node *np)
rockchip_register_softrst(np, 15, reg_base + RK3368_SOFTRST_CON(0),
ROCKCHIP_SOFTRST_HIWORD_MASK);
rockchip_register_restart_notifier(RK3368_GLB_SRST_FST);
rockchip_register_restart_notifier(RK3368_GLB_SRST_FST, NULL);
}
CLK_OF_DECLARE(rk3368_cru, "rockchip,rk3368-cru", rk3368_clk_init);
......@@ -341,9 +341,13 @@ void __init rockchip_clk_protect_critical(const char *const clocks[],
}
static unsigned int reg_restart;
static void (*cb_restart)(void);
static int rockchip_restart_notify(struct notifier_block *this,
unsigned long mode, void *cmd)
{
if (cb_restart)
cb_restart();
writel(0xfdb9, reg_base + reg_restart);
return NOTIFY_DONE;
}
......@@ -353,11 +357,12 @@ static struct notifier_block rockchip_restart_handler = {
.priority = 128,
};
void __init rockchip_register_restart_notifier(unsigned int reg)
void __init rockchip_register_restart_notifier(unsigned int reg, void (*cb)(void))
{
int ret;
reg_restart = reg;
cb_restart = cb;
ret = register_restart_handler(&rockchip_restart_handler);
if (ret)
pr_err("%s: cannot register restart handler, %d\n",
......
......@@ -2,6 +2,9 @@
* Copyright (c) 2014 MundoReader S.L.
* Author: Heiko Stuebner <heiko@sntech.de>
*
* Copyright (c) 2015 Rockchip Electronics Co. Ltd.
* Author: Xing Zheng <zhengxing@rock-chips.com>
*
* based on
*
* samsung/clk.h
......@@ -30,7 +33,7 @@ struct clk;
#define HIWORD_UPDATE(val, mask, shift) \
((val) << (shift) | (mask) << ((shift) + 16))
/* register positions shared by RK2928, RK3066 and RK3188 */
/* register positions shared by RK2928, RK3036, RK3066, RK3188 and RK3228 */
#define RK2928_PLL_CON(x) ((x) * 0x4)
#define RK2928_MODE_CON 0x40
#define RK2928_CLKSEL_CON(x) ((x) * 0x4 + 0x44)
......@@ -40,6 +43,22 @@ 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 RK3228_GLB_SRST_FST 0x1f0
#define RK3228_GLB_SRST_SND 0x1f4
#define RK3228_SDMMC_CON0 0x1c0
#define RK3228_SDMMC_CON1 0x1c4
#define RK3228_SDIO_CON0 0x1c8
#define RK3228_SDIO_CON1 0x1cc
#define RK3228_EMMC_CON0 0x1d8
#define RK3228_EMMC_CON1 0x1dc
#define RK3288_PLL_CON(x) RK2928_PLL_CON(x)
#define RK3288_MODE_CON 0x50
#define RK3288_CLKSEL_CON(x) ((x) * 0x4 + 0x60)
......@@ -74,9 +93,22 @@ struct clk;
#define RK3368_EMMC_CON1 0x41c
enum rockchip_pll_type {
pll_rk3036,
pll_rk3066,
};
#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, \
}
#define RK3066_PLL_RATE(_rate, _nr, _nf, _no) \
{ \
.rate = _rate##U, \
......@@ -101,6 +133,13 @@ struct rockchip_pll_rate_table {
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;
};
/**
......@@ -464,7 +503,7 @@ void rockchip_clk_register_armclk(unsigned int lookup_id, const char *name,
const struct rockchip_cpuclk_rate_table *rates,
int nrates);
void rockchip_clk_protect_critical(const char *const clocks[], int nclocks);
void rockchip_register_restart_notifier(unsigned int reg);
void rockchip_register_restart_notifier(unsigned int reg, void (*cb)(void));
#define ROCKCHIP_SOFTRST_HIWORD_MASK BIT(0)
......
/*
* Copyright (c) 2015 Rockchip Electronics Co. Ltd.
* Author: Xing Zheng <zhengxing@rock-chips.com>
*
* 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.
*/
#ifndef _DT_BINDINGS_CLK_ROCKCHIP_RK3036_H
#define _DT_BINDINGS_CLK_ROCKCHIP_RK3036_H
/* 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_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
/* 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
#define PCLK_ACODEC 369
/* 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_CORE0_DBG 4
#define SRST_CORE1_DBG 5
#define SRST_CORE0_POR 8
#define SRST_CORE1_POR 9
#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_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_UART0 39
#define SRST_UART1 40
#define SRST_UART2 41
#define SRST_I2C0 43
#define SRST_I2C1 44
#define SRST_I2C2 45
#define SRST_SFC 47
#define SRST_PWM0 48
#define SRST_DAP 51
#define SRST_DAP_SYS 52
#define SRST_GRF 55
#define SRST_PERIPHSYS_A 57
#define SRST_PERIPHSYS_H 58
#define SRST_PERIPHSYS_P 59
#define SRST_CPU_PERI 61
#define SRST_EMEM_PERI 62
#define SRST_USB_PERI 63
#define SRST_DMA2 64
#define SRST_MAC 66
#define SRST_NANDC 68
#define SRST_USBOTG0 69
#define SRST_OTGC0 71
#define SRST_USBOTG1 72
#define SRST_OTGC1 74
#define SRST_DDRMSCH 79
#define SRST_MMC0 81
#define SRST_SDIO 82
#define SRST_EMMC 83
#define SRST_SPI0 84
#define SRST_WDT 86
#define SRST_DDRPHY 88
#define SRST_DDRPHY_P 89
#define SRST_DDRCTRL 90
#define SRST_DDRCTRL_P 91
#define SRST_HDMI_P 96
#define SRST_VIO_BUS_H 99
#define SRST_UTMI0 103
#define SRST_UTMI1 104
#define SRST_USBPOR 105
#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_GPU_NIU_A 122
#define SRST_DBG_P 131
#endif
/*
* Copyright (c) 2015 Rockchip Electronics Co. Ltd.
* Author: Jeffy Chen <jeffy.chen@rock-chips.com>
*
* 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.
*/
#ifndef _DT_BINDINGS_CLK_ROCKCHIP_RK3228_H
#define _DT_BINDINGS_CLK_ROCKCHIP_RK3228_H
/* core clocks */
#define PLL_APLL 1
#define PLL_DPLL 2
#define PLL_CPLL 3
#define PLL_GPLL 4
#define ARMCLK 5
/* sclk gates (special clocks) */
#define SCLK_SPI0 65
#define SCLK_NANDC 67
#define SCLK_SDMMC 68
#define SCLK_SDIO 69
#define SCLK_EMMC 71
#define SCLK_UART0 77
#define SCLK_UART1 78
#define SCLK_UART2 79
#define SCLK_I2S0 80
#define SCLK_I2S1 81
#define SCLK_I2S2 82
#define SCLK_SPDIF 83
#define SCLK_TIMER0 85
#define SCLK_TIMER1 86
#define SCLK_TIMER2 87
#define SCLK_TIMER3 88
#define SCLK_TIMER4 89
#define SCLK_TIMER5 90
#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
/* aclk gates */
#define ACLK_DMAC 194
#define ACLK_PERI 210
/* pclk gates */
#define PCLK_GPIO0 320
#define PCLK_GPIO1 321
#define PCLK_GPIO2 322
#define PCLK_GPIO3 323
#define PCLK_GRF 329
#define PCLK_I2C0 332
#define PCLK_I2C1 333
#define PCLK_I2C2 334
#define PCLK_I2C3 335
#define PCLK_SPI0 338
#define PCLK_UART0 341
#define PCLK_UART1 342
#define PCLK_UART2 343
#define PCLK_PWM 350
#define PCLK_TIMER 353
#define PCLK_PERI 363
/* hclk gates */
#define HCLK_NANDC 453
#define HCLK_SDMMC 456
#define HCLK_SDIO 457
#define HCLK_EMMC 459
#define HCLK_PERI 478
#define CLK_NR_CLKS (HCLK_PERI + 1)
/* soft-reset indices */
#define SRST_CORE0_PO 0
#define SRST_CORE1_PO 1
#define SRST_CORE2_PO 2
#define SRST_CORE3_PO 3
#define SRST_CORE0 4
#define SRST_CORE1 5
#define SRST_CORE2 6
#define SRST_CORE3 7
#define SRST_CORE0_DBG 8
#define SRST_CORE1_DBG 9
#define SRST_CORE2_DBG 10
#define SRST_CORE3_DBG 11
#define SRST_TOPDBG 12
#define SRST_ACLK_CORE 13
#define SRST_NOC 14
#define SRST_L2C 15
#define SRST_CPUSYS_H 18
#define SRST_BUSSYS_H 19
#define SRST_SPDIF 20
#define SRST_INTMEM 21
#define SRST_ROM 22
#define SRST_OTG_ADP 23
#define SRST_I2S0 24
#define SRST_I2S1 25
#define SRST_I2S2 26
#define SRST_ACODEC_P 27
#define SRST_DFIMON 28
#define SRST_MSCH 29
#define SRST_EFUSE1024 30
#define SRST_EFUSE256 31
#define SRST_GPIO0 32
#define SRST_GPIO1 33
#define SRST_GPIO2 34
#define SRST_GPIO3 35
#define SRST_PERIPH_NOC_A 36
#define SRST_PERIPH_NOC_BUS_H 37
#define SRST_PERIPH_NOC_P 38
#define SRST_UART0 39
#define SRST_UART1 40
#define SRST_UART2 41
#define SRST_PHYNOC 42
#define SRST_I2C0 43
#define SRST_I2C1 44
#define SRST_I2C2 45
#define SRST_I2C3 46
#define SRST_PWM 48
#define SRST_A53_GIC 49
#define SRST_DAP 51
#define SRST_DAP_NOC 52
#define SRST_CRYPTO 53
#define SRST_SGRF 54
#define SRST_GRF 55
#define SRST_GMAC 56
#define SRST_PERIPH_NOC_H 58
#define SRST_MACPHY 63
#define SRST_DMA 64
#define SRST_NANDC 68
#define SRST_USBOTG 69
#define SRST_OTGC 70
#define SRST_USBHOST0 71
#define SRST_HOST_CTRL0 72
#define SRST_USBHOST1 73
#define SRST_HOST_CTRL1 74
#define SRST_USBHOST2 75
#define SRST_HOST_CTRL2 76
#define SRST_USBPOR0 77
#define SRST_USBPOR1 78
#define SRST_DDRMSCH 79
#define SRST_SMART_CARD 80
#define SRST_SDMMC 81
#define SRST_SDIO 82
#define SRST_EMMC 83
#define SRST_SPI 84
#define SRST_TSP_H 85
#define SRST_TSP 86
#define SRST_TSADC 87
#define SRST_DDRPHY 88
#define SRST_DDRPHY_P 89
#define SRST_DDRCTRL 90
#define SRST_DDRCTRL_P 91
#define SRST_HOST0_ECHI 92
#define SRST_HOST1_ECHI 93
#define SRST_HOST2_ECHI 94
#define SRST_VOP_NOC_A 95
#define SRST_HDMI_P 96
#define SRST_VIO_ARBI_H 97
#define SRST_IEP_NOC_A 98
#define SRST_VIO_NOC_H 99
#define SRST_VOP_A 100
#define SRST_VOP_H 101
#define SRST_VOP_D 102
#define SRST_UTMI0 103
#define SRST_UTMI1 104
#define SRST_UTMI2 105
#define SRST_UTMI3 106
#define SRST_RGA 107
#define SRST_RGA_NOC_A 108
#define SRST_RGA_A 109
#define SRST_RGA_H 110
#define SRST_HDCP_A 111
#define SRST_VPU_A 112
#define SRST_VPU_H 113
#define SRST_VPU_NOC_A 116
#define SRST_VPU_NOC_H 117
#define SRST_RKVDEC_A 118
#define SRST_RKVDEC_NOC_A 119
#define SRST_RKVDEC_H 120
#define SRST_RKVDEC_NOC_H 121
#define SRST_RKVDEC_CORE 122
#define SRST_RKVDEC_CABAC 123
#define SRST_IEP_A 124
#define SRST_IEP_H 125
#define SRST_GPU_A 126
#define SRST_GPU_NOC_A 127
#define SRST_CORE_DBG 128
#define SRST_DBG_P 129
#define SRST_TIMER0 130
#define SRST_TIMER1 131
#define SRST_TIMER2 132
#define SRST_TIMER3 133
#define SRST_TIMER4 134
#define SRST_TIMER5 135
#define SRST_VIO_H2P 136
#define SRST_HDMIPHY 139
#define SRST_VDAC 140
#define SRST_TIMER_6CH_P 141
#endif
......@@ -86,6 +86,8 @@
#define SCLK_USBPHY480M_SRC 122
#define SCLK_PVTM_CORE 123
#define SCLK_PVTM_GPU 124
#define SCLK_CRYPTO 125
#define SCLK_MIPIDSI_24M 126
#define SCLK_MAC 151
#define SCLK_MACREF_OUT 152
......@@ -164,6 +166,8 @@
#define PCLK_DDRUPCTL1 366
#define PCLK_PUBL1 367
#define PCLK_WDT 368
#define PCLK_EFUSE256 369
#define PCLK_EFUSE1024 370
/* hclk gates */
#define HCLK_GPS 448
......
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