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uboot/drivers/clk/rockchip/clk_rk3568.c

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2020 Fuzhou Rockchip Electronics Co., Ltd
* Author: Elaine Zhang <zhangqing@rock-chips.com>
*/
#include <common.h>
#include <bitfield.h>
#include <clk-uclass.h>
#include <dm.h>
#include <errno.h>
#include <syscon.h>
#include <asm/arch/clock.h>
#include <asm/arch/cru_rk3568.h>
#include <asm/arch/grf_rk3568.h>
#include <asm/arch/hardware.h>
#include <asm/io.h>
#include <dm/lists.h>
#include <dt-bindings/clock/rk3568-cru.h>
DECLARE_GLOBAL_DATA_PTR;
#define RK3568_CPUCLK_RATE(_rate, _aclk_div, _pclk_div) \
{ \
.rate = _rate##U, \
.aclk_div = _aclk_div, \
.pclk_div = _pclk_div, \
}
#define DIV_TO_RATE(input_rate, div) ((input_rate) / ((div) + 1))
static struct rockchip_cpu_rate_table rk3568_cpu_rates[] = {
RK3568_CPUCLK_RATE(1416000000, 1, 5),
RK3568_CPUCLK_RATE(1296000000, 1, 5),
RK3568_CPUCLK_RATE(1200000000, 1, 3),
RK3568_CPUCLK_RATE(1104000000, 1, 3),
RK3568_CPUCLK_RATE(1008000000, 1, 3),
RK3568_CPUCLK_RATE(912000000, 1, 3),
RK3568_CPUCLK_RATE(816000000, 1, 3),
RK3568_CPUCLK_RATE(600000000, 1, 1),
RK3568_CPUCLK_RATE(408000000, 1, 1),
{ /* sentinel */ },
};
static struct rockchip_pll_rate_table rk3568_pll_rates[] = {
/* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
RK3036_PLL_RATE(1608000000, 1, 67, 1, 1, 1, 0),
RK3036_PLL_RATE(1416000000, 1, 118, 2, 1, 1, 0),
RK3036_PLL_RATE(1296000000, 1, 108, 2, 1, 1, 0),
RK3036_PLL_RATE(1200000000, 1, 100, 2, 1, 1, 0),
RK3036_PLL_RATE(1188000000, 1, 99, 2, 1, 1, 0),
RK3036_PLL_RATE(1104000000, 1, 92, 2, 1, 1, 0),
RK3036_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0),
RK3036_PLL_RATE(1000000000, 3, 250, 2, 1, 1, 0),
RK3036_PLL_RATE(912000000, 1, 76, 2, 1, 1, 0),
RK3036_PLL_RATE(816000000, 1, 68, 2, 1, 1, 0),
RK3036_PLL_RATE(600000000, 1, 100, 4, 1, 1, 0),
RK3036_PLL_RATE(594000000, 1, 99, 4, 1, 1, 0),
RK3036_PLL_RATE(500000000, 1, 125, 6, 1, 1, 0),
RK3036_PLL_RATE(408000000, 1, 68, 2, 2, 1, 0),
RK3036_PLL_RATE(400000000, 1, 100, 6, 1, 1, 0),
RK3036_PLL_RATE(200000000, 1, 100, 6, 2, 1, 0),
RK3036_PLL_RATE(100000000, 1, 150, 6, 6, 1, 0),
{ /* sentinel */ },
};
static struct rockchip_pll_clock rk3568_pll_clks[] = {
[APLL] = PLL(pll_rk3328, PLL_APLL, RK3568_PLL_CON(0),
RK3568_MODE_CON, 0, 10, 0, rk3568_pll_rates),
[DPLL] = PLL(pll_rk3328, PLL_DPLL, RK3568_PLL_CON(8),
RK3568_MODE_CON, 2, 10, 0, NULL),
[CPLL] = PLL(pll_rk3328, PLL_CPLL, RK3568_PLL_CON(24),
RK3568_MODE_CON, 4, 10, 0, rk3568_pll_rates),
[GPLL] = PLL(pll_rk3328, PLL_HPLL, RK3568_PLL_CON(16),
RK3568_MODE_CON, 6, 10, 0, rk3568_pll_rates),
[NPLL] = PLL(pll_rk3328, PLL_NPLL, RK3568_PLL_CON(32),
RK3568_MODE_CON, 10, 10, 0, rk3568_pll_rates),
[VPLL] = PLL(pll_rk3328, PLL_VPLL, RK3568_PLL_CON(40),
RK3568_MODE_CON, 12, 10, 0, rk3568_pll_rates),
[PPLL] = PLL(pll_rk3328, PLL_PPLL, RK3568_PMU_PLL_CON(0),
RK3568_PMU_MODE, 0, 10, 0, rk3568_pll_rates),
[HPLL] = PLL(pll_rk3328, PLL_HPLL, RK3568_PMU_PLL_CON(16),
RK3568_PMU_MODE, 2, 10, 0, rk3568_pll_rates),
};
#ifndef CONFIG_SPL_BUILD
#define RK3568_CLK_DUMP(_id, _name, _iscru) \
{ \
.id = _id, \
.name = _name, \
.is_cru = _iscru, \
}
static const struct rk3568_clk_info clks_dump[] = {
RK3568_CLK_DUMP(PLL_APLL, "apll", true),
RK3568_CLK_DUMP(PLL_DPLL, "dpll", true),
RK3568_CLK_DUMP(PLL_GPLL, "gpll", true),
RK3568_CLK_DUMP(PLL_CPLL, "cpll", true),
RK3568_CLK_DUMP(PLL_NPLL, "npll", true),
RK3568_CLK_DUMP(PLL_VPLL, "vpll", true),
RK3568_CLK_DUMP(PLL_HPLL, "hpll", false),
RK3568_CLK_DUMP(PLL_PPLL, "ppll", false),
RK3568_CLK_DUMP(ARMCLK, "armclk", true),
RK3568_CLK_DUMP(ACLK_BUS, "aclk_bus", true),
RK3568_CLK_DUMP(PCLK_BUS, "pclk_bus", true),
RK3568_CLK_DUMP(ACLK_TOP_HIGH, "aclk_top_high", true),
RK3568_CLK_DUMP(ACLK_TOP_LOW, "aclk_top_low", true),
RK3568_CLK_DUMP(HCLK_TOP, "hclk_top", true),
RK3568_CLK_DUMP(PCLK_TOP, "pclk_top", true),
RK3568_CLK_DUMP(ACLK_PERIMID, "aclk_perimid", true),
RK3568_CLK_DUMP(HCLK_PERIMID, "hclk_perimid", true),
RK3568_CLK_DUMP(PCLK_PMU, "pclk_pmu", false),
};
#endif
static ulong __maybe_unused
rk3568_pmu_pll_set_rate(struct rk3568_clk_priv *priv,
ulong pll_id, ulong rate)
{
struct udevice *pmucru_dev;
struct rk3568_pmuclk_priv *pmu_priv;
int ret;
ret = uclass_get_device_by_driver(UCLASS_CLK,
DM_GET_DRIVER(rockchip_rk3568_pmucru),
&pmucru_dev);
if (ret) {
printf("%s: could not find pmucru device\n", __func__);
return ret;
}
pmu_priv = dev_get_priv(pmucru_dev);
rockchip_pll_set_rate(&rk3568_pll_clks[pll_id],
pmu_priv->pmucru, pll_id, rate);
return 0;
}
static ulong rk3568_pmu_pll_get_rate(struct rk3568_clk_priv *priv,
ulong pll_id)
{
struct udevice *pmucru_dev;
struct rk3568_pmuclk_priv *pmu_priv;
int ret;
ret = uclass_get_device_by_driver(UCLASS_CLK,
DM_GET_DRIVER(rockchip_rk3568_pmucru),
&pmucru_dev);
if (ret) {
printf("%s: could not find pmucru device\n", __func__);
return ret;
}
pmu_priv = dev_get_priv(pmucru_dev);
return rockchip_pll_get_rate(&rk3568_pll_clks[pll_id],
pmu_priv->pmucru, pll_id);
}
/*
*
* rational_best_approximation(31415, 10000,
* (1 << 8) - 1, (1 << 5) - 1, &n, &d);
*
* you may look at given_numerator as a fixed point number,
* with the fractional part size described in given_denominator.
*
* for theoretical background, see:
* http://en.wikipedia.org/wiki/Continued_fraction
*/
static void rational_best_approximation(unsigned long given_numerator,
unsigned long given_denominator,
unsigned long max_numerator,
unsigned long max_denominator,
unsigned long *best_numerator,
unsigned long *best_denominator)
{
unsigned long n, d, n0, d0, n1, d1;
n = given_numerator;
d = given_denominator;
n0 = 0;
d1 = 0;
n1 = 1;
d0 = 1;
for (;;) {
unsigned long t, a;
if (n1 > max_numerator || d1 > max_denominator) {
n1 = n0;
d1 = d0;
break;
}
if (d == 0)
break;
t = d;
a = n / d;
d = n % d;
n = t;
t = n0 + a * n1;
n0 = n1;
n1 = t;
t = d0 + a * d1;
d0 = d1;
d1 = t;
}
*best_numerator = n1;
*best_denominator = d1;
}
static ulong rk3568_rtc32k_get_pmuclk(struct rk3568_pmuclk_priv *priv)
{
struct rk3568_pmucru *pmucru = priv->pmucru;
unsigned long m, n;
u32 fracdiv;
fracdiv = readl(&pmucru->pmu_clksel_con[1]);
m = fracdiv & RTC32K_FRAC_NUMERATOR_MASK;
m >>= RTC32K_FRAC_NUMERATOR_SHIFT;
n = fracdiv & RTC32K_FRAC_DENOMINATOR_MASK;
n >>= RTC32K_FRAC_DENOMINATOR_SHIFT;
return OSC_HZ * m / n;
}
static ulong rk3568_rtc32k_set_pmuclk(struct rk3568_pmuclk_priv *priv,
ulong rate)
{
struct rk3568_pmucru *pmucru = priv->pmucru;
unsigned long m, n, val;
rk_clrsetreg(&pmucru->pmu_clksel_con[0], RTC32K_SEL_MASK,
RTC32K_SEL_OSC0_DIV32K << RTC32K_SEL_SHIFT);
rational_best_approximation(rate, OSC_HZ,
GENMASK(16 - 1, 0),
GENMASK(16 - 1, 0),
&m, &n);
val = m << RTC32K_FRAC_NUMERATOR_SHIFT | n;
writel(val, &pmucru->pmu_clksel_con[1]);
return rk3568_rtc32k_get_pmuclk(priv);
}
static ulong rk3568_i2c_get_pmuclk(struct rk3568_pmuclk_priv *priv,
ulong clk_id)
{
struct rk3568_pmucru *pmucru = priv->pmucru;
u32 div, con;
switch (clk_id) {
case CLK_I2C0:
con = readl(&pmucru->pmu_clksel_con[3]);
div = (con & CLK_I2C0_DIV_MASK) >> CLK_I2C0_DIV_SHIFT;
break;
default:
return -ENOENT;
}
return DIV_TO_RATE(priv->ppll_hz, div);
}
static ulong rk3568_i2c_set_pmuclk(struct rk3568_pmuclk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_pmucru *pmucru = priv->pmucru;
int src_clk_div;
src_clk_div = DIV_ROUND_UP(priv->ppll_hz, rate);
assert(src_clk_div - 1 <= 127);
switch (clk_id) {
case CLK_I2C0:
rk_clrsetreg(&pmucru->pmu_clksel_con[3], CLK_I2C0_DIV_MASK,
(src_clk_div - 1) << CLK_I2C0_DIV_SHIFT);
break;
default:
return -ENOENT;
}
return rk3568_i2c_get_pmuclk(priv, clk_id);
}
static ulong rk3568_pwm_get_pmuclk(struct rk3568_pmuclk_priv *priv,
ulong clk_id)
{
struct rk3568_pmucru *pmucru = priv->pmucru;
u32 div, sel, con, parent;
switch (clk_id) {
case CLK_PWM0:
con = readl(&pmucru->pmu_clksel_con[6]);
sel = (con & CLK_PWM0_SEL_MASK) >> CLK_PWM0_SEL_SHIFT;
div = (con & CLK_PWM0_DIV_MASK) >> CLK_PWM0_DIV_SHIFT;
if (sel == CLK_PWM0_SEL_XIN24M)
parent = OSC_HZ;
else
parent = priv->ppll_hz;
break;
default:
return -ENOENT;
}
return DIV_TO_RATE(parent, div);
}
static ulong rk3568_pwm_set_pmuclk(struct rk3568_pmuclk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_pmucru *pmucru = priv->pmucru;
int src_clk_div;
switch (clk_id) {
case CLK_PWM0:
if (rate == OSC_HZ) {
rk_clrsetreg(&pmucru->pmu_clksel_con[6],
CLK_PWM0_SEL_MASK | CLK_PWM0_DIV_MASK,
(CLK_PWM0_SEL_XIN24M <<
CLK_PWM0_SEL_SHIFT) |
0 << CLK_PWM0_SEL_SHIFT);
} else {
src_clk_div = DIV_ROUND_UP(priv->ppll_hz, rate);
assert(src_clk_div - 1 <= 127);
rk_clrsetreg(&pmucru->pmu_clksel_con[6],
CLK_PWM0_DIV_MASK | CLK_PWM0_DIV_MASK,
(CLK_PWM0_SEL_PPLL << CLK_PWM0_SEL_SHIFT) |
(src_clk_div - 1) << CLK_PWM0_DIV_SHIFT);
}
break;
default:
return -ENOENT;
}
return rk3568_pwm_get_pmuclk(priv, clk_id);
}
static ulong rk3568_pmu_get_pmuclk(struct rk3568_pmuclk_priv *priv)
{
struct rk3568_pmucru *pmucru = priv->pmucru;
u32 div, con, sel, parent;
con = readl(&pmucru->pmu_clksel_con[2]);
sel = (con & PCLK_PDPMU_SEL_MASK) >> PCLK_PDPMU_SEL_SHIFT;
div = (con & PCLK_PDPMU_DIV_MASK) >> PCLK_PDPMU_DIV_SHIFT;
if (sel)
parent = GPLL_HZ;
else
parent = priv->ppll_hz;
return DIV_TO_RATE(parent, div);
}
static ulong rk3568_pmu_set_pmuclk(struct rk3568_pmuclk_priv *priv,
ulong rate)
{
struct rk3568_pmucru *pmucru = priv->pmucru;
int src_clk_div;
src_clk_div = DIV_ROUND_UP(priv->ppll_hz, rate);
assert(src_clk_div - 1 <= 31);
rk_clrsetreg(&pmucru->pmu_clksel_con[2],
PCLK_PDPMU_DIV_MASK | PCLK_PDPMU_SEL_MASK,
(PCLK_PDPMU_SEL_PPLL << PCLK_PDPMU_SEL_SHIFT) |
((src_clk_div - 1) << PCLK_PDPMU_DIV_SHIFT));
return rk3568_pmu_get_pmuclk(priv);
}
static ulong rk3568_pmuclk_get_rate(struct clk *clk)
{
struct rk3568_pmuclk_priv *priv = dev_get_priv(clk->dev);
ulong rate = 0;
if (!priv->ppll_hz) {
printf("%s ppll=%lu\n", __func__, priv->ppll_hz);
return -ENOENT;
}
debug("%s %ld\n", __func__, clk->id);
switch (clk->id) {
case PLL_PPLL:
rate = rockchip_pll_get_rate(&rk3568_pll_clks[PPLL],
priv->pmucru, PPLL);
break;
case PLL_HPLL:
rate = rockchip_pll_get_rate(&rk3568_pll_clks[HPLL],
priv->pmucru, HPLL);
break;
case CLK_RTC_32K:
case CLK_RTC32K_FRAC:
rate = rk3568_rtc32k_get_pmuclk(priv);
break;
case CLK_I2C0:
rate = rk3568_i2c_get_pmuclk(priv, clk->id);
break;
case CLK_PWM0:
rate = rk3568_pwm_get_pmuclk(priv, clk->id);
break;
case PCLK_PMU:
rate = rk3568_pmu_get_pmuclk(priv);
break;
default:
return -ENOENT;
}
return rate;
}
static ulong rk3568_pmuclk_set_rate(struct clk *clk, ulong rate)
{
struct rk3568_pmuclk_priv *priv = dev_get_priv(clk->dev);
ulong ret = 0;
if (!priv->ppll_hz) {
printf("%s ppll=%lu\n", __func__, priv->ppll_hz);
return -ENOENT;
}
debug("%s %ld %ld\n", __func__, clk->id, rate);
switch (clk->id) {
case PLL_PPLL:
ret = rockchip_pll_set_rate(&rk3568_pll_clks[PPLL],
priv->pmucru, PPLL, rate);
priv->ppll_hz = rockchip_pll_get_rate(&rk3568_pll_clks[PPLL],
priv->pmucru, PPLL);
break;
case PLL_HPLL:
ret = rockchip_pll_set_rate(&rk3568_pll_clks[HPLL],
priv->pmucru, HPLL, rate);
priv->hpll_hz = rockchip_pll_get_rate(&rk3568_pll_clks[HPLL],
priv->pmucru, HPLL);
break;
case CLK_RTC_32K:
case CLK_RTC32K_FRAC:
ret = rk3568_rtc32k_set_pmuclk(priv, rate);
break;
case CLK_I2C0:
ret = rk3568_i2c_set_pmuclk(priv, clk->id, rate);
break;
case CLK_PWM0:
ret = rk3568_pwm_set_pmuclk(priv, clk->id, rate);
break;
case PCLK_PMU:
ret = rk3568_pmu_set_pmuclk(priv, rate);
break;
default:
return -ENOENT;
}
return ret;
}
static int rk3568_rtc32k_set_parent(struct clk *clk, struct clk *parent)
{
struct rk3568_pmuclk_priv *priv = dev_get_priv(clk->dev);
struct rk3568_pmucru *pmucru = priv->pmucru;
if (parent->id == CLK_RTC32K_FRAC)
rk_clrsetreg(&pmucru->pmu_clksel_con[0], RTC32K_SEL_MASK,
RTC32K_SEL_OSC0_DIV32K << RTC32K_SEL_SHIFT);
else
rk_clrsetreg(&pmucru->pmu_clksel_con[0], RTC32K_SEL_MASK,
RTC32K_SEL_OSC1_32K << RTC32K_SEL_SHIFT);
return 0;
}
static int rk3568_pmuclk_set_parent(struct clk *clk, struct clk *parent)
{
switch (clk->id) {
case CLK_RTC_32K:
return rk3568_rtc32k_set_parent(clk, parent);
default:
return -ENOENT;
}
}
static struct clk_ops rk3568_pmuclk_ops = {
.get_rate = rk3568_pmuclk_get_rate,
.set_rate = rk3568_pmuclk_set_rate,
.set_parent = rk3568_pmuclk_set_parent,
};
static int rk3568_pmuclk_probe(struct udevice *dev)
{
struct rk3568_pmuclk_priv *priv = dev_get_priv(dev);
int ret = 0;
if (priv->ppll_hz != PPLL_HZ) {
ret = rockchip_pll_set_rate(&rk3568_pll_clks[PPLL],
priv->pmucru,
PPLL, PPLL_HZ);
if (!ret)
priv->ppll_hz = PPLL_HZ;
}
/* Ungate PCIe30phy refclk_m and refclk_n */
rk_clrsetreg(&priv->pmucru->pmu_clkgate_con[2], 0x3 << 13, 0 << 13);
return 0;
}
static int rk3568_pmuclk_ofdata_to_platdata(struct udevice *dev)
{
struct rk3568_pmuclk_priv *priv = dev_get_priv(dev);
priv->pmucru = dev_read_addr_ptr(dev);
return 0;
}
static int rk3568_pmuclk_bind(struct udevice *dev)
{
int ret = 0;
struct udevice *sf_child;
struct softreset_reg *sf_priv;
ret = device_bind_driver_to_node(dev, "rockchip_reset",
"reset", dev_ofnode(dev),
&sf_child);
if (ret) {
debug("Warning: No rockchip reset driver: ret=%d\n", ret);
} else {
sf_priv = malloc(sizeof(struct softreset_reg));
sf_priv->sf_reset_offset = offsetof(struct rk3568_pmucru,
pmu_softrst_con[0]);
sf_priv->sf_reset_num = 1;
sf_child->priv = sf_priv;
}
return 0;
}
static const struct udevice_id rk3568_pmuclk_ids[] = {
{ .compatible = "rockchip,rk3568-pmucru" },
{ }
};
U_BOOT_DRIVER(rockchip_rk3568_pmucru) = {
.name = "rockchip_rk3568_pmucru",
.id = UCLASS_CLK,
.of_match = rk3568_pmuclk_ids,
.priv_auto_alloc_size = sizeof(struct rk3568_pmuclk_priv),
.ofdata_to_platdata = rk3568_pmuclk_ofdata_to_platdata,
.ops = &rk3568_pmuclk_ops,
.bind = rk3568_pmuclk_bind,
.probe = rk3568_pmuclk_probe,
};
static int rk3568_armclk_set_clk(struct rk3568_clk_priv *priv, ulong hz)
{
struct rk3568_cru *cru = priv->cru;
const struct rockchip_cpu_rate_table *rate;
ulong old_rate;
rate = rockchip_get_cpu_settings(rk3568_cpu_rates, hz);
if (!rate) {
printf("%s unsupported rate\n", __func__);
return -EINVAL;
}
rk_clrsetreg(&cru->clksel_con[0],
CLK_CORE_PRE_SEL_MASK,
(CLK_CORE_PRE_SEL_SRC << CLK_CORE_PRE_SEL_SHIFT));
rk_clrsetreg(&cru->clksel_con[2],
SCLK_CORE_PRE_SEL_MASK |
SCLK_CORE_SRC_SEL_MASK |
SCLK_CORE_SRC_DIV_MASK,
(SCLK_CORE_PRE_SEL_SRC <<
SCLK_CORE_PRE_SEL_SHIFT) |
(SCLK_CORE_SRC_SEL_APLL <<
SCLK_CORE_SRC_SEL_SHIFT) |
(1 << SCLK_CORE_SRC_DIV_SHIFT));
/*
* set up dependent divisors for DBG and ACLK clocks.
*/
old_rate = rockchip_pll_get_rate(&rk3568_pll_clks[APLL],
priv->cru, APLL);
if (old_rate > hz) {
if (rockchip_pll_set_rate(&rk3568_pll_clks[APLL],
priv->cru, APLL, hz))
return -EINVAL;
rk_clrsetreg(&cru->clksel_con[3],
GICCLK_CORE_DIV_MASK | ATCLK_CORE_DIV_MASK,
rate->pclk_div << GICCLK_CORE_DIV_SHIFT |
rate->pclk_div << ATCLK_CORE_DIV_SHIFT);
rk_clrsetreg(&cru->clksel_con[4],
PERIPHCLK_CORE_PRE_DIV_MASK |
PCLK_CORE_PRE_DIV_MASK,
rate->pclk_div << PCLK_CORE_PRE_DIV_SHIFT |
rate->pclk_div << PERIPHCLK_CORE_PRE_DIV_SHIFT);
rk_clrsetreg(&cru->clksel_con[5],
ACLK_CORE_NDFT_DIV_MASK,
rate->aclk_div << ACLK_CORE_NDFT_DIV_SHIFT);
} else if (old_rate < hz) {
rk_clrsetreg(&cru->clksel_con[3],
GICCLK_CORE_DIV_MASK | ATCLK_CORE_DIV_MASK,
rate->pclk_div << GICCLK_CORE_DIV_SHIFT |
rate->pclk_div << ATCLK_CORE_DIV_SHIFT);
rk_clrsetreg(&cru->clksel_con[4],
PERIPHCLK_CORE_PRE_DIV_MASK |
PCLK_CORE_PRE_DIV_MASK,
rate->pclk_div << PCLK_CORE_PRE_DIV_SHIFT |
rate->pclk_div << PERIPHCLK_CORE_PRE_DIV_SHIFT);
rk_clrsetreg(&cru->clksel_con[5],
ACLK_CORE_NDFT_DIV_MASK,
rate->aclk_div << ACLK_CORE_NDFT_DIV_SHIFT);
if (rockchip_pll_set_rate(&rk3568_pll_clks[APLL],
priv->cru, APLL, hz))
return -EINVAL;
}
return 0;
}
static ulong rk3568_cpll_div_get_rate(struct rk3568_clk_priv *priv,
ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
int div, mask, shift, con;
switch (clk_id) {
case CPLL_500M:
con = 78;
mask = CPLL_500M_DIV_MASK;
shift = CPLL_500M_DIV_SHIFT;
break;
case CPLL_333M:
con = 79;
mask = CPLL_333M_DIV_MASK;
shift = CPLL_333M_DIV_SHIFT;
break;
case CPLL_250M:
con = 79;
mask = CPLL_250M_DIV_MASK;
shift = CPLL_250M_DIV_SHIFT;
break;
case CPLL_125M:
con = 80;
mask = CPLL_125M_DIV_MASK;
shift = CPLL_125M_DIV_SHIFT;
break;
case CPLL_100M:
con = 82;
mask = CPLL_100M_DIV_MASK;
shift = CPLL_100M_DIV_SHIFT;
break;
case CPLL_62P5M:
con = 80;
mask = CPLL_62P5M_DIV_MASK;
shift = CPLL_62P5M_DIV_SHIFT;
break;
case CPLL_50M:
con = 81;
mask = CPLL_50M_DIV_MASK;
shift = CPLL_50M_DIV_SHIFT;
break;
case CPLL_25M:
con = 81;
mask = CPLL_25M_DIV_MASK;
shift = CPLL_25M_DIV_SHIFT;
break;
default:
return -ENOENT;
}
div = (readl(&cru->clksel_con[con]) & mask) >> shift;
return DIV_TO_RATE(priv->cpll_hz, div);
}
static ulong rk3568_cpll_div_set_rate(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int div, mask, shift, con;
switch (clk_id) {
case CPLL_500M:
con = 78;
mask = CPLL_500M_DIV_MASK;
shift = CPLL_500M_DIV_SHIFT;
break;
case CPLL_333M:
con = 79;
mask = CPLL_333M_DIV_MASK;
shift = CPLL_333M_DIV_SHIFT;
break;
case CPLL_250M:
con = 79;
mask = CPLL_250M_DIV_MASK;
shift = CPLL_250M_DIV_SHIFT;
break;
case CPLL_125M:
con = 80;
mask = CPLL_125M_DIV_MASK;
shift = CPLL_125M_DIV_SHIFT;
break;
case CPLL_100M:
con = 82;
mask = CPLL_100M_DIV_MASK;
shift = CPLL_100M_DIV_SHIFT;
break;
case CPLL_62P5M:
con = 80;
mask = CPLL_62P5M_DIV_MASK;
shift = CPLL_62P5M_DIV_SHIFT;
break;
case CPLL_50M:
con = 81;
mask = CPLL_50M_DIV_MASK;
shift = CPLL_50M_DIV_SHIFT;
break;
case CPLL_25M:
con = 81;
mask = CPLL_25M_DIV_MASK;
shift = CPLL_25M_DIV_SHIFT;
break;
default:
return -ENOENT;
}
div = DIV_ROUND_UP(priv->cpll_hz, rate);
assert(div - 1 <= 31);
rk_clrsetreg(&cru->clksel_con[con],
mask, (div - 1) << shift);
return rk3568_cpll_div_get_rate(priv, clk_id);
}
static ulong rk3568_bus_get_clk(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 con, sel, rate;
switch (clk_id) {
case ACLK_BUS:
con = readl(&cru->clksel_con[50]);
sel = (con & ACLK_BUS_SEL_MASK) >> ACLK_BUS_SEL_SHIFT;
if (sel == ACLK_BUS_SEL_200M)
rate = 200 * MHz;
else if (sel == ACLK_BUS_SEL_150M)
rate = 150 * MHz;
else if (sel == ACLK_BUS_SEL_100M)
rate = 100 * MHz;
else
rate = OSC_HZ;
break;
case PCLK_BUS:
case PCLK_WDT_NS:
con = readl(&cru->clksel_con[50]);
sel = (con & PCLK_BUS_SEL_MASK) >> PCLK_BUS_SEL_SHIFT;
if (sel == PCLK_BUS_SEL_100M)
rate = 100 * MHz;
else if (sel == PCLK_BUS_SEL_75M)
rate = 75 * MHz;
else if (sel == PCLK_BUS_SEL_50M)
rate = 50 * MHz;
else
rate = OSC_HZ;
break;
default:
return -ENOENT;
}
return rate;
}
static ulong rk3568_bus_set_clk(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (clk_id) {
case ACLK_BUS:
if (rate == 200 * MHz)
src_clk = ACLK_BUS_SEL_200M;
else if (rate == 150 * MHz)
src_clk = ACLK_BUS_SEL_150M;
else if (rate == 100 * MHz)
src_clk = ACLK_BUS_SEL_100M;
else
src_clk = ACLK_BUS_SEL_24M;
rk_clrsetreg(&cru->clksel_con[50],
ACLK_BUS_SEL_MASK,
src_clk << ACLK_BUS_SEL_SHIFT);
break;
case PCLK_BUS:
case PCLK_WDT_NS:
if (rate == 100 * MHz)
src_clk = PCLK_BUS_SEL_100M;
else if (rate == 75 * MHz)
src_clk = PCLK_BUS_SEL_75M;
else if (rate == 50 * MHz)
src_clk = PCLK_BUS_SEL_50M;
else
src_clk = PCLK_BUS_SEL_24M;
rk_clrsetreg(&cru->clksel_con[50],
PCLK_BUS_SEL_MASK,
src_clk << PCLK_BUS_SEL_SHIFT);
break;
default:
printf("do not support this bus freq\n");
return -EINVAL;
}
return rk3568_bus_get_clk(priv, clk_id);
}
static ulong rk3568_perimid_get_clk(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 con, sel, rate;
switch (clk_id) {
case ACLK_PERIMID:
con = readl(&cru->clksel_con[10]);
sel = (con & ACLK_PERIMID_SEL_MASK) >> ACLK_PERIMID_SEL_SHIFT;
if (sel == ACLK_PERIMID_SEL_300M)
rate = 300 * MHz;
else if (sel == ACLK_PERIMID_SEL_200M)
rate = 200 * MHz;
else if (sel == ACLK_PERIMID_SEL_100M)
rate = 100 * MHz;
else
rate = OSC_HZ;
break;
case HCLK_PERIMID:
con = readl(&cru->clksel_con[10]);
sel = (con & HCLK_PERIMID_SEL_MASK) >> HCLK_PERIMID_SEL_SHIFT;
if (sel == HCLK_PERIMID_SEL_150M)
rate = 150 * MHz;
else if (sel == HCLK_PERIMID_SEL_100M)
rate = 100 * MHz;
else if (sel == HCLK_PERIMID_SEL_75M)
rate = 75 * MHz;
else
rate = OSC_HZ;
break;
default:
return -ENOENT;
}
return rate;
}
static ulong rk3568_perimid_set_clk(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (clk_id) {
case ACLK_PERIMID:
if (rate == 300 * MHz)
src_clk = ACLK_PERIMID_SEL_300M;
else if (rate == 200 * MHz)
src_clk = ACLK_PERIMID_SEL_200M;
else if (rate == 100 * MHz)
src_clk = ACLK_PERIMID_SEL_100M;
else
src_clk = ACLK_PERIMID_SEL_24M;
rk_clrsetreg(&cru->clksel_con[10],
ACLK_PERIMID_SEL_MASK,
src_clk << ACLK_PERIMID_SEL_SHIFT);
break;
case HCLK_PERIMID:
if (rate == 150 * MHz)
src_clk = HCLK_PERIMID_SEL_150M;
else if (rate == 100 * MHz)
src_clk = HCLK_PERIMID_SEL_100M;
else if (rate == 75 * MHz)
src_clk = HCLK_PERIMID_SEL_75M;
else
src_clk = HCLK_PERIMID_SEL_24M;
rk_clrsetreg(&cru->clksel_con[10],
HCLK_PERIMID_SEL_MASK,
src_clk << HCLK_PERIMID_SEL_SHIFT);
break;
default:
printf("do not support this permid freq\n");
return -EINVAL;
}
return rk3568_perimid_get_clk(priv, clk_id);
}
static ulong rk3568_top_get_clk(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 con, sel, rate;
switch (clk_id) {
case ACLK_TOP_HIGH:
con = readl(&cru->clksel_con[73]);
sel = (con & ACLK_TOP_HIGH_SEL_MASK) >> ACLK_TOP_HIGH_SEL_SHIFT;
if (sel == ACLK_TOP_HIGH_SEL_500M)
rate = 500 * MHz;
else if (sel == ACLK_TOP_HIGH_SEL_400M)
rate = 400 * MHz;
else if (sel == ACLK_TOP_HIGH_SEL_300M)
rate = 300 * MHz;
else
rate = OSC_HZ;
break;
case ACLK_TOP_LOW:
con = readl(&cru->clksel_con[73]);
sel = (con & ACLK_TOP_LOW_SEL_MASK) >> ACLK_TOP_LOW_SEL_SHIFT;
if (sel == ACLK_TOP_LOW_SEL_400M)
rate = 400 * MHz;
else if (sel == ACLK_TOP_LOW_SEL_300M)
rate = 300 * MHz;
else if (sel == ACLK_TOP_LOW_SEL_200M)
rate = 200 * MHz;
else
rate = OSC_HZ;
break;
case HCLK_TOP:
con = readl(&cru->clksel_con[73]);
sel = (con & HCLK_TOP_SEL_MASK) >> HCLK_TOP_SEL_SHIFT;
if (sel == HCLK_TOP_SEL_150M)
rate = 150 * MHz;
else if (sel == HCLK_TOP_SEL_100M)
rate = 100 * MHz;
else if (sel == HCLK_TOP_SEL_75M)
rate = 75 * MHz;
else
rate = OSC_HZ;
break;
case PCLK_TOP:
con = readl(&cru->clksel_con[73]);
sel = (con & PCLK_TOP_SEL_MASK) >> PCLK_TOP_SEL_SHIFT;
if (sel == PCLK_TOP_SEL_100M)
rate = 100 * MHz;
else if (sel == PCLK_TOP_SEL_75M)
rate = 75 * MHz;
else if (sel == PCLK_TOP_SEL_50M)
rate = 50 * MHz;
else
rate = OSC_HZ;
break;
default:
return -ENOENT;
}
return rate;
}
static ulong rk3568_top_set_clk(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (clk_id) {
case ACLK_TOP_HIGH:
if (rate == 500 * MHz)
src_clk = ACLK_TOP_HIGH_SEL_500M;
else if (rate == 400 * MHz)
src_clk = ACLK_TOP_HIGH_SEL_400M;
else if (rate == 300 * MHz)
src_clk = ACLK_TOP_HIGH_SEL_300M;
else
src_clk = ACLK_TOP_HIGH_SEL_24M;
rk_clrsetreg(&cru->clksel_con[73],
ACLK_TOP_HIGH_SEL_MASK,
src_clk << ACLK_TOP_HIGH_SEL_SHIFT);
break;
case ACLK_TOP_LOW:
if (rate == 400 * MHz)
src_clk = ACLK_TOP_LOW_SEL_400M;
else if (rate == 300 * MHz)
src_clk = ACLK_TOP_LOW_SEL_300M;
else if (rate == 200 * MHz)
src_clk = ACLK_TOP_LOW_SEL_200M;
else
src_clk = ACLK_TOP_LOW_SEL_24M;
rk_clrsetreg(&cru->clksel_con[73],
ACLK_TOP_LOW_SEL_MASK,
src_clk << ACLK_TOP_LOW_SEL_SHIFT);
break;
case HCLK_TOP:
if (rate == 150 * MHz)
src_clk = HCLK_TOP_SEL_150M;
else if (rate == 100 * MHz)
src_clk = HCLK_TOP_SEL_100M;
else if (rate == 75 * MHz)
src_clk = HCLK_TOP_SEL_75M;
else
src_clk = HCLK_TOP_SEL_24M;
rk_clrsetreg(&cru->clksel_con[73],
HCLK_TOP_SEL_MASK,
src_clk << HCLK_TOP_SEL_SHIFT);
break;
case PCLK_TOP:
if (rate == 100 * MHz)
src_clk = PCLK_TOP_SEL_100M;
else if (rate == 75 * MHz)
src_clk = PCLK_TOP_SEL_75M;
else if (rate == 50 * MHz)
src_clk = PCLK_TOP_SEL_50M;
else
src_clk = PCLK_TOP_SEL_24M;
rk_clrsetreg(&cru->clksel_con[73],
PCLK_TOP_SEL_MASK,
src_clk << PCLK_TOP_SEL_SHIFT);
break;
default:
printf("do not support this permid freq\n");
return -EINVAL;
}
return rk3568_top_get_clk(priv, clk_id);
}
static ulong rk3568_i2c_get_clk(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
ulong rate;
switch (clk_id) {
case CLK_I2C1:
case CLK_I2C2:
case CLK_I2C3:
case CLK_I2C4:
case CLK_I2C5:
con = readl(&cru->clksel_con[71]);
sel = (con & CLK_I2C_SEL_MASK) >> CLK_I2C_SEL_SHIFT;
if (sel == CLK_I2C_SEL_200M)
rate = 200 * MHz;
else if (sel == CLK_I2C_SEL_100M)
rate = 100 * MHz;
else if (sel == CLK_I2C_SEL_CPLL_100M)
rate = 100 * MHz;
else
rate = OSC_HZ;
break;
default:
return -ENOENT;
}
return rate;
}
static ulong rk3568_i2c_set_clk(struct rk3568_clk_priv *priv, ulong clk_id,
ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
if (rate == 200 * MHz)
src_clk = CLK_I2C_SEL_200M;
else if (rate == 100 * MHz)
src_clk = CLK_I2C_SEL_100M;
else
src_clk = CLK_I2C_SEL_24M;
switch (clk_id) {
case CLK_I2C1:
case CLK_I2C2:
case CLK_I2C3:
case CLK_I2C4:
case CLK_I2C5:
rk_clrsetreg(&cru->clksel_con[71], CLK_I2C_SEL_MASK,
src_clk << CLK_I2C_SEL_SHIFT);
break;
default:
return -ENOENT;
}
return rk3568_i2c_get_clk(priv, clk_id);
}
static ulong rk3568_spi_get_clk(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
con = readl(&cru->clksel_con[72]);
switch (clk_id) {
case CLK_SPI0:
sel = (con & CLK_SPI0_SEL_MASK) >> CLK_SPI0_SEL_SHIFT;
break;
case CLK_SPI1:
sel = (con & CLK_SPI1_SEL_MASK) >> CLK_SPI1_SEL_SHIFT;
break;
case CLK_SPI2:
sel = (con & CLK_SPI2_SEL_MASK) >> CLK_SPI2_SEL_SHIFT;
break;
case CLK_SPI3:
sel = (con & CLK_SPI3_SEL_MASK) >> CLK_SPI3_SEL_SHIFT;
break;
default:
return -ENOENT;
}
switch (sel) {
case CLK_SPI_SEL_200M:
return 200 * MHz;
case CLK_SPI_SEL_24M:
return OSC_HZ;
case CLK_SPI_SEL_CPLL_100M:
return 100 * MHz;
default:
return -ENOENT;
}
}
static ulong rk3568_spi_set_clk(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
if (rate == 200 * MHz)
src_clk = CLK_SPI_SEL_200M;
else if (rate == 100 * MHz)
src_clk = CLK_SPI_SEL_CPLL_100M;
else
src_clk = CLK_SPI_SEL_24M;
switch (clk_id) {
case CLK_SPI0:
rk_clrsetreg(&cru->clksel_con[72],
CLK_SPI0_SEL_MASK,
src_clk << CLK_SPI0_SEL_SHIFT);
break;
case CLK_SPI1:
rk_clrsetreg(&cru->clksel_con[72],
CLK_SPI1_SEL_MASK,
src_clk << CLK_SPI1_SEL_SHIFT);
break;
case CLK_SPI2:
rk_clrsetreg(&cru->clksel_con[72],
CLK_SPI2_SEL_MASK,
src_clk << CLK_SPI2_SEL_SHIFT);
break;
case CLK_SPI3:
rk_clrsetreg(&cru->clksel_con[72],
CLK_SPI3_SEL_MASK,
src_clk << CLK_SPI3_SEL_SHIFT);
break;
default:
return -ENOENT;
}
return rk3568_spi_get_clk(priv, clk_id);
}
static ulong rk3568_pwm_get_clk(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
con = readl(&cru->clksel_con[72]);
switch (clk_id) {
case CLK_PWM1:
sel = (con & CLK_PWM1_SEL_MASK) >> CLK_PWM3_SEL_SHIFT;
break;
case CLK_PWM2:
sel = (con & CLK_PWM2_SEL_MASK) >> CLK_PWM2_SEL_SHIFT;
break;
case CLK_PWM3:
sel = (con & CLK_PWM3_SEL_MASK) >> CLK_PWM3_SEL_SHIFT;
break;
default:
return -ENOENT;
}
switch (sel) {
case CLK_PWM_SEL_100M:
return 100 * MHz;
case CLK_PWM_SEL_24M:
return OSC_HZ;
case CLK_PWM_SEL_CPLL_100M:
return 100 * MHz;
default:
return -ENOENT;
}
}
static ulong rk3568_pwm_set_clk(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
if (rate == 100 * MHz)
src_clk = CLK_PWM_SEL_100M;
else
src_clk = CLK_PWM_SEL_24M;
switch (clk_id) {
case CLK_PWM1:
rk_clrsetreg(&cru->clksel_con[72],
CLK_PWM1_SEL_MASK,
src_clk << CLK_PWM1_SEL_SHIFT);
break;
case CLK_PWM2:
rk_clrsetreg(&cru->clksel_con[72],
CLK_PWM2_SEL_MASK,
src_clk << CLK_PWM2_SEL_SHIFT);
break;
case CLK_PWM3:
rk_clrsetreg(&cru->clksel_con[72],
CLK_PWM3_SEL_MASK,
src_clk << CLK_PWM3_SEL_SHIFT);
break;
default:
return -ENOENT;
}
return rk3568_pwm_get_clk(priv, clk_id);
}
static ulong rk3568_adc_get_clk(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 div, sel, con, prate;
switch (clk_id) {
case CLK_SARADC:
return OSC_HZ;
case CLK_TSADC_TSEN:
con = readl(&cru->clksel_con[51]);
div = (con & CLK_TSADC_TSEN_DIV_MASK) >>
CLK_TSADC_TSEN_DIV_SHIFT;
sel = (con & CLK_TSADC_TSEN_SEL_MASK) >>
CLK_TSADC_TSEN_SEL_SHIFT;
if (sel == CLK_TSADC_TSEN_SEL_24M)
prate = OSC_HZ;
else
prate = 100 * MHz;
return DIV_TO_RATE(prate, div);
case CLK_TSADC:
con = readl(&cru->clksel_con[51]);
div = (con & CLK_TSADC_DIV_MASK) >> CLK_TSADC_DIV_SHIFT;
prate = rk3568_adc_get_clk(priv, CLK_TSADC_TSEN);
return DIV_TO_RATE(prate, div);
default:
return -ENOENT;
}
}
static ulong rk3568_adc_set_clk(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk_div;
ulong prate = 0;
switch (clk_id) {
case CLK_SARADC:
return OSC_HZ;
case CLK_TSADC_TSEN:
if (!(OSC_HZ % rate)) {
src_clk_div = DIV_ROUND_UP(OSC_HZ, rate);
assert(src_clk_div - 1 <= 7);
rk_clrsetreg(&cru->clksel_con[51],
CLK_TSADC_TSEN_SEL_MASK |
CLK_TSADC_TSEN_DIV_MASK,
(CLK_TSADC_TSEN_SEL_24M <<
CLK_TSADC_TSEN_SEL_SHIFT) |
(src_clk_div - 1) <<
CLK_TSADC_TSEN_DIV_SHIFT);
} else {
src_clk_div = DIV_ROUND_UP(100 * MHz, rate);
assert(src_clk_div - 1 <= 7);
rk_clrsetreg(&cru->clksel_con[51],
CLK_TSADC_TSEN_SEL_MASK |
CLK_TSADC_TSEN_DIV_MASK,
(CLK_TSADC_TSEN_SEL_100M <<
CLK_TSADC_TSEN_SEL_SHIFT) |
(src_clk_div - 1) <<
CLK_TSADC_TSEN_DIV_SHIFT);
}
break;
case CLK_TSADC:
prate = rk3568_adc_get_clk(priv, CLK_TSADC_TSEN);
src_clk_div = DIV_ROUND_UP(prate, rate);
assert(src_clk_div - 1 <= 128);
rk_clrsetreg(&cru->clksel_con[51],
CLK_TSADC_DIV_MASK,
(src_clk_div - 1) << CLK_TSADC_DIV_SHIFT);
break;
default:
return -ENOENT;
}
return rk3568_adc_get_clk(priv, clk_id);
}
static ulong rk3568_crypto_get_rate(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
switch (clk_id) {
case ACLK_SECURE_FLASH:
case ACLK_CRYPTO_NS:
con = readl(&cru->clksel_con[27]);
sel = (con & ACLK_SECURE_FLASH_SEL_MASK) >>
ACLK_SECURE_FLASH_SEL_SHIFT;
if (sel == ACLK_SECURE_FLASH_SEL_200M)
return 200 * MHz;
else if (sel == ACLK_SECURE_FLASH_SEL_150M)
return 150 * MHz;
else if (sel == ACLK_SECURE_FLASH_SEL_100M)
return 100 * MHz;
else
return 24 * MHz;
case HCLK_SECURE_FLASH:
case HCLK_CRYPTO_NS:
case CLK_CRYPTO_NS_RNG:
con = readl(&cru->clksel_con[27]);
sel = (con & HCLK_SECURE_FLASH_SEL_MASK) >>
HCLK_SECURE_FLASH_SEL_SHIFT;
if (sel == HCLK_SECURE_FLASH_SEL_150M)
return 150 * MHz;
else if (sel == HCLK_SECURE_FLASH_SEL_100M)
return 100 * MHz;
else if (sel == HCLK_SECURE_FLASH_SEL_75M)
return 75 * MHz;
else
return 24 * MHz;
case CLK_CRYPTO_NS_CORE:
con = readl(&cru->clksel_con[27]);
sel = (con & CLK_CRYPTO_CORE_SEL_MASK) >>
CLK_CRYPTO_CORE_SEL_SHIFT;
if (sel == CLK_CRYPTO_CORE_SEL_200M)
return 200 * MHz;
else if (sel == CLK_CRYPTO_CORE_SEL_150M)
return 150 * MHz;
else
return 100 * MHz;
case CLK_CRYPTO_NS_PKA:
con = readl(&cru->clksel_con[27]);
sel = (con & CLK_CRYPTO_PKA_SEL_MASK) >>
CLK_CRYPTO_PKA_SEL_SHIFT;
if (sel == CLK_CRYPTO_PKA_SEL_300M)
return 300 * MHz;
else if (sel == CLK_CRYPTO_PKA_SEL_200M)
return 200 * MHz;
else
return 100 * MHz;
default:
return -ENOENT;
}
}
static ulong rk3568_crypto_set_rate(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
u32 src_clk, mask, shift;
switch (clk_id) {
case ACLK_SECURE_FLASH:
case ACLK_CRYPTO_NS:
mask = ACLK_SECURE_FLASH_SEL_MASK;
shift = ACLK_SECURE_FLASH_SEL_SHIFT;
if (rate == 200 * MHz)
src_clk = ACLK_SECURE_FLASH_SEL_200M;
else if (rate == 150 * MHz)
src_clk = ACLK_SECURE_FLASH_SEL_150M;
else if (rate == 100 * MHz)
src_clk = ACLK_SECURE_FLASH_SEL_100M;
else
src_clk = ACLK_SECURE_FLASH_SEL_24M;
break;
case HCLK_SECURE_FLASH:
case HCLK_CRYPTO_NS:
case CLK_CRYPTO_NS_RNG:
mask = HCLK_SECURE_FLASH_SEL_MASK;
shift = HCLK_SECURE_FLASH_SEL_SHIFT;
if (rate == 150 * MHz)
src_clk = HCLK_SECURE_FLASH_SEL_150M;
else if (rate == 100 * MHz)
src_clk = HCLK_SECURE_FLASH_SEL_100M;
else if (rate == 75 * MHz)
src_clk = HCLK_SECURE_FLASH_SEL_75M;
else
src_clk = HCLK_SECURE_FLASH_SEL_24M;
break;
case CLK_CRYPTO_NS_CORE:
mask = CLK_CRYPTO_CORE_SEL_MASK;
shift = CLK_CRYPTO_CORE_SEL_SHIFT;
if (rate == 200 * MHz)
src_clk = CLK_CRYPTO_CORE_SEL_200M;
else if (rate == 150 * MHz)
src_clk = CLK_CRYPTO_CORE_SEL_150M;
else
src_clk = CLK_CRYPTO_CORE_SEL_100M;
break;
case CLK_CRYPTO_NS_PKA:
mask = CLK_CRYPTO_PKA_SEL_MASK;
shift = CLK_CRYPTO_PKA_SEL_SHIFT;
if (rate == 300 * MHz)
src_clk = CLK_CRYPTO_PKA_SEL_300M;
else if (rate == 200 * MHz)
src_clk = CLK_CRYPTO_PKA_SEL_200M;
else
src_clk = CLK_CRYPTO_PKA_SEL_100M;
break;
default:
return -ENOENT;
}
rk_clrsetreg(&cru->clksel_con[27], mask, src_clk << shift);
return rk3568_crypto_get_rate(priv, clk_id);
}
static ulong rk3568_sdmmc_get_clk(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
switch (clk_id) {
case HCLK_SDMMC0:
case CLK_SDMMC0:
con = readl(&cru->clksel_con[30]);
sel = (con & CLK_SDMMC0_SEL_MASK) >> CLK_SDMMC0_SEL_SHIFT;
break;
case CLK_SDMMC1:
con = readl(&cru->clksel_con[30]);
sel = (con & CLK_SDMMC1_SEL_MASK) >> CLK_SDMMC1_SEL_SHIFT;
break;
case CLK_SDMMC2:
con = readl(&cru->clksel_con[32]);
sel = (con & CLK_SDMMC2_SEL_MASK) >> CLK_SDMMC2_SEL_SHIFT;
break;
default:
return -ENOENT;
}
switch (sel) {
case CLK_SDMMC_SEL_24M:
return OSC_HZ;
case CLK_SDMMC_SEL_400M:
return 400 * MHz;
case CLK_SDMMC_SEL_300M:
return 300 * MHz;
case CLK_SDMMC_SEL_100M:
return 100 * MHz;
case CLK_SDMMC_SEL_50M:
return 50 * MHz;
case CLK_SDMMC_SEL_750K:
return 750 * KHz;
default:
return -ENOENT;
}
}
static ulong rk3568_sdmmc_set_clk(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (rate) {
case OSC_HZ:
case 26 * MHz:
src_clk = CLK_SDMMC_SEL_24M;
break;
case 400 * MHz:
src_clk = CLK_SDMMC_SEL_400M;
break;
case 300 * MHz:
src_clk = CLK_SDMMC_SEL_300M;
break;
case 100 * MHz:
src_clk = CLK_SDMMC_SEL_100M;
break;
case 52 * MHz:
case 50 * MHz:
src_clk = CLK_SDMMC_SEL_50M;
break;
case 750 * KHz:
case 400 * KHz:
src_clk = CLK_SDMMC_SEL_750K;
break;
default:
return -ENOENT;
}
switch (clk_id) {
case HCLK_SDMMC0:
case CLK_SDMMC0:
rk_clrsetreg(&cru->clksel_con[30],
CLK_SDMMC0_SEL_MASK,
src_clk << CLK_SDMMC0_SEL_SHIFT);
break;
case CLK_SDMMC1:
rk_clrsetreg(&cru->clksel_con[30],
CLK_SDMMC1_SEL_MASK,
src_clk << CLK_SDMMC1_SEL_SHIFT);
break;
case CLK_SDMMC2:
rk_clrsetreg(&cru->clksel_con[32],
CLK_SDMMC2_SEL_MASK,
src_clk << CLK_SDMMC2_SEL_SHIFT);
break;
default:
return -ENOENT;
}
return rk3568_sdmmc_get_clk(priv, clk_id);
}
static ulong rk3568_sfc_get_clk(struct rk3568_clk_priv *priv)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
con = readl(&cru->clksel_con[28]);
sel = (con & SCLK_SFC_SEL_MASK) >> SCLK_SFC_SEL_SHIFT;
switch (sel) {
case SCLK_SFC_SEL_24M:
return OSC_HZ;
case SCLK_SFC_SEL_50M:
return 50 * MHz;
case SCLK_SFC_SEL_75M:
return 75 * MHz;
case SCLK_SFC_SEL_100M:
return 100 * MHz;
case SCLK_SFC_SEL_125M:
return 125 * MHz;
case SCLK_SFC_SEL_150M:
return 150 * MHz;
default:
return -ENOENT;
}
}
static ulong rk3568_sfc_set_clk(struct rk3568_clk_priv *priv, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (rate) {
case OSC_HZ:
src_clk = SCLK_SFC_SEL_24M;
break;
case 50 * MHz:
src_clk = SCLK_SFC_SEL_50M;
break;
case 75 * MHz:
src_clk = SCLK_SFC_SEL_75M;
break;
case 100 * MHz:
src_clk = SCLK_SFC_SEL_100M;
break;
case 125 * MHz:
src_clk = SCLK_SFC_SEL_125M;
break;
case 150 * MHz:
src_clk = SCLK_SFC_SEL_150M;
break;
default:
return -ENOENT;
}
rk_clrsetreg(&cru->clksel_con[28],
SCLK_SFC_SEL_MASK,
src_clk << SCLK_SFC_SEL_SHIFT);
return rk3568_sfc_get_clk(priv);
}
static ulong rk3568_nand_get_clk(struct rk3568_clk_priv *priv)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
con = readl(&cru->clksel_con[28]);
sel = (con & NCLK_NANDC_SEL_MASK) >> NCLK_NANDC_SEL_SHIFT;
switch (sel) {
case NCLK_NANDC_SEL_200M:
return 200 * MHz;
case NCLK_NANDC_SEL_150M:
return 150 * MHz;
case NCLK_NANDC_SEL_100M:
return 100 * MHz;
case NCLK_NANDC_SEL_24M:
return OSC_HZ;
default:
return -ENOENT;
}
}
static ulong rk3568_nand_set_clk(struct rk3568_clk_priv *priv, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (rate) {
case OSC_HZ:
src_clk = NCLK_NANDC_SEL_24M;
break;
case 100 * MHz:
src_clk = NCLK_NANDC_SEL_100M;
break;
case 150 * MHz:
src_clk = NCLK_NANDC_SEL_150M;
break;
case 200 * MHz:
src_clk = NCLK_NANDC_SEL_200M;
break;
default:
return -ENOENT;
}
rk_clrsetreg(&cru->clksel_con[28],
NCLK_NANDC_SEL_MASK,
src_clk << NCLK_NANDC_SEL_SHIFT);
return rk3568_nand_get_clk(priv);
}
static ulong rk3568_emmc_get_clk(struct rk3568_clk_priv *priv)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
con = readl(&cru->clksel_con[28]);
sel = (con & CCLK_EMMC_SEL_MASK) >> CCLK_EMMC_SEL_SHIFT;
switch (sel) {
case CCLK_EMMC_SEL_200M:
return 200 * MHz;
case CCLK_EMMC_SEL_150M:
return 150 * MHz;
case CCLK_EMMC_SEL_100M:
return 100 * MHz;
case CCLK_EMMC_SEL_50M:
return 50 * MHz;
case CCLK_EMMC_SEL_375K:
return 375 * KHz;
case CCLK_EMMC_SEL_24M:
return OSC_HZ;
default:
return -ENOENT;
}
}
static ulong rk3568_emmc_set_clk(struct rk3568_clk_priv *priv, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (rate) {
case OSC_HZ:
src_clk = CCLK_EMMC_SEL_24M;
break;
case 52 * MHz:
case 50 * MHz:
src_clk = CCLK_EMMC_SEL_50M;
break;
case 100 * MHz:
src_clk = CCLK_EMMC_SEL_100M;
break;
case 150 * MHz:
src_clk = CCLK_EMMC_SEL_150M;
break;
case 200 * MHz:
src_clk = CCLK_EMMC_SEL_200M;
break;
case 400 * KHz:
case 375 * KHz:
src_clk = CCLK_EMMC_SEL_375K;
break;
default:
return -ENOENT;
}
rk_clrsetreg(&cru->clksel_con[28],
CCLK_EMMC_SEL_MASK,
src_clk << CCLK_EMMC_SEL_SHIFT);
return rk3568_emmc_get_clk(priv);
}
static ulong rk3568_emmc_get_bclk(struct rk3568_clk_priv *priv)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
con = readl(&cru->clksel_con[28]);
sel = (con & BCLK_EMMC_SEL_MASK) >> BCLK_EMMC_SEL_SHIFT;
switch (sel) {
case BCLK_EMMC_SEL_200M:
return 200 * MHz;
case BCLK_EMMC_SEL_150M:
return 150 * MHz;
case BCLK_EMMC_SEL_125M:
return 125 * MHz;
default:
return -ENOENT;
}
}
static ulong rk3568_emmc_set_bclk(struct rk3568_clk_priv *priv, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (rate) {
case 200 * MHz:
src_clk = BCLK_EMMC_SEL_200M;
break;
case 150 * MHz:
src_clk = BCLK_EMMC_SEL_150M;
break;
case 125 * MHz:
src_clk = BCLK_EMMC_SEL_125M;
break;
default:
return -ENOENT;
}
rk_clrsetreg(&cru->clksel_con[28],
BCLK_EMMC_SEL_MASK,
src_clk << BCLK_EMMC_SEL_SHIFT);
return rk3568_emmc_get_bclk(priv);
}
#ifndef CONFIG_SPL_BUILD
static ulong rk3568_aclk_vop_get_clk(struct rk3568_clk_priv *priv)
{
struct rk3568_cru *cru = priv->cru;
u32 div, sel, con, parent;
con = readl(&cru->clksel_con[38]);
div = (con & ACLK_VOP_PRE_DIV_MASK) >> ACLK_VOP_PRE_DIV_SHIFT;
sel = (con & ACLK_VOP_PRE_SEL_MASK) >> ACLK_VOP_PRE_SEL_SHIFT;
if (sel == ACLK_VOP_PRE_SEL_GPLL)
parent = priv->gpll_hz;
else if (sel == ACLK_VOP_PRE_SEL_CPLL)
parent = priv->cpll_hz;
else if (sel == ACLK_VOP_PRE_SEL_VPLL)
parent = priv->vpll_hz;
else
parent = priv->hpll_hz;
return DIV_TO_RATE(parent, div);
}
static ulong rk3568_aclk_vop_set_clk(struct rk3568_clk_priv *priv, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk_div, src_clk_mux;
if ((priv->cpll_hz % rate) == 0) {
src_clk_div = DIV_ROUND_UP(priv->cpll_hz, rate);
src_clk_mux = ACLK_VOP_PRE_SEL_CPLL;
} else {
src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
src_clk_mux = ACLK_VOP_PRE_SEL_GPLL;
}
assert(src_clk_div - 1 <= 31);
rk_clrsetreg(&cru->clksel_con[38],
ACLK_VOP_PRE_SEL_MASK | ACLK_VOP_PRE_DIV_MASK,
src_clk_mux << ACLK_VOP_PRE_SEL_SHIFT |
(src_clk_div - 1) << ACLK_VOP_PRE_DIV_SHIFT);
return rk3568_aclk_vop_get_clk(priv);
}
static ulong rk3568_dclk_vop_get_clk(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 conid, div, sel, con, parent;
switch (clk_id) {
case DCLK_VOP0:
conid = 39;
break;
case DCLK_VOP1:
conid = 40;
break;
case DCLK_VOP2:
conid = 41;
break;
default:
return -ENOENT;
}
con = readl(&cru->clksel_con[conid]);
div = (con & DCLK0_VOP_DIV_MASK) >> DCLK0_VOP_DIV_SHIFT;
sel = (con & DCLK0_VOP_SEL_MASK) >> DCLK0_VOP_SEL_SHIFT;
if (sel == DCLK_VOP_SEL_HPLL)
parent = rk3568_pmu_pll_get_rate(priv, HPLL);
else if (sel == DCLK_VOP_SEL_VPLL)
parent = rockchip_pll_get_rate(&rk3568_pll_clks[VPLL],
priv->cru, VPLL);
else if (sel == DCLK_VOP_SEL_GPLL)
parent = priv->gpll_hz;
else if (sel == DCLK_VOP_SEL_CPLL)
parent = priv->cpll_hz;
else
return -ENOENT;
return DIV_TO_RATE(parent, div);
}
#define RK3568_VOP_PLL_LIMIT_FREQ 600000000
static ulong rk3568_dclk_vop_set_clk(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
ulong pll_rate, now, best_rate = 0;
u32 i, conid, con, sel, div, best_div = 0, best_sel = 0;
switch (clk_id) {
case DCLK_VOP0:
conid = 39;
break;
case DCLK_VOP1:
conid = 40;
break;
case DCLK_VOP2:
conid = 41;
break;
default:
return -ENOENT;
}
con = readl(&cru->clksel_con[conid]);
sel = (con & DCLK0_VOP_SEL_MASK) >> DCLK0_VOP_SEL_SHIFT;
if (sel == DCLK_VOP_SEL_HPLL) {
div = 1;
rk_clrsetreg(&cru->clksel_con[conid],
DCLK0_VOP_DIV_MASK | DCLK0_VOP_SEL_MASK,
(DCLK_VOP_SEL_HPLL << DCLK0_VOP_SEL_SHIFT) |
((div - 1) << DCLK0_VOP_DIV_SHIFT));
rk3568_pmu_pll_set_rate(priv, HPLL, div * rate);
} else if (sel == DCLK_VOP_SEL_VPLL) {
div = DIV_ROUND_UP(RK3568_VOP_PLL_LIMIT_FREQ, rate);
rk_clrsetreg(&cru->clksel_con[conid],
DCLK0_VOP_DIV_MASK | DCLK0_VOP_SEL_MASK,
(DCLK_VOP_SEL_VPLL << DCLK0_VOP_SEL_SHIFT) |
((div - 1) << DCLK0_VOP_DIV_SHIFT));
rockchip_pll_set_rate(&rk3568_pll_clks[VPLL],
priv->cru, VPLL, div * rate);
} else {
for (i = 0; i <= DCLK_VOP_SEL_CPLL; i++) {
switch (i) {
case DCLK_VOP_SEL_GPLL:
pll_rate = priv->gpll_hz;
break;
case DCLK_VOP_SEL_CPLL:
pll_rate = priv->cpll_hz;
break;
default:
printf("do not support this vop pll sel\n");
return -EINVAL;
}
div = DIV_ROUND_UP(pll_rate, rate);
if (div > 255)
continue;
now = pll_rate / div;
if (abs(rate - now) < abs(rate - best_rate)) {
best_rate = now;
best_div = div;
best_sel = i;
}
debug("p_rate=%lu, best_rate=%lu, div=%u, sel=%u\n",
pll_rate, best_rate, best_div, best_sel);
}
if (best_rate) {
rk_clrsetreg(&cru->clksel_con[conid],
DCLK0_VOP_DIV_MASK | DCLK0_VOP_SEL_MASK,
best_sel << DCLK0_VOP_SEL_SHIFT |
(best_div - 1) << DCLK0_VOP_DIV_SHIFT);
} else {
printf("do not support this vop freq %lu\n", rate);
return -EINVAL;
}
}
return rk3568_dclk_vop_get_clk(priv, clk_id);
}
static ulong rk3568_gmac_src_get_clk(struct rk3568_clk_priv *priv,
ulong mac_id)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
con = readl(&cru->clksel_con[31 + mac_id * 2]);
sel = (con & CLK_MAC0_2TOP_SEL_MASK) >> CLK_MAC0_2TOP_SEL_SHIFT;
switch (sel) {
case CLK_MAC0_2TOP_SEL_125M:
return 125 * MHz;
case CLK_MAC0_2TOP_SEL_50M:
return 50 * MHz;
case CLK_MAC0_2TOP_SEL_25M:
return 25 * MHz;
case CLK_MAC0_2TOP_SEL_PPLL:
return rk3568_pmu_pll_get_rate(priv, HPLL);
default:
return -ENOENT;
}
}
static ulong rk3568_gmac_src_set_clk(struct rk3568_clk_priv *priv,
ulong mac_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (rate) {
case 125 * MHz:
src_clk = CLK_MAC0_2TOP_SEL_125M;
break;
case 50 * MHz:
src_clk = CLK_MAC0_2TOP_SEL_50M;
break;
case 25 * MHz:
src_clk = CLK_MAC0_2TOP_SEL_25M;
break;
default:
return -ENOENT;
}
rk_clrsetreg(&cru->clksel_con[31 + mac_id * 2],
CLK_MAC0_2TOP_SEL_MASK,
src_clk << CLK_MAC0_2TOP_SEL_SHIFT);
return rk3568_gmac_src_get_clk(priv, mac_id);
}
static ulong rk3568_gmac_out_get_clk(struct rk3568_clk_priv *priv,
ulong mac_id)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
con = readl(&cru->clksel_con[31 + mac_id * 2]);
sel = (con & CLK_MAC0_OUT_SEL_MASK) >> CLK_MAC0_OUT_SEL_SHIFT;
switch (sel) {
case CLK_MAC0_OUT_SEL_125M:
return 125 * MHz;
case CLK_MAC0_OUT_SEL_50M:
return 50 * MHz;
case CLK_MAC0_OUT_SEL_25M:
return 25 * MHz;
case CLK_MAC0_OUT_SEL_24M:
return OSC_HZ;
default:
return -ENOENT;
}
}
static ulong rk3568_gmac_out_set_clk(struct rk3568_clk_priv *priv,
ulong mac_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (rate) {
case 125 * MHz:
src_clk = CLK_MAC0_OUT_SEL_125M;
break;
case 50 * MHz:
src_clk = CLK_MAC0_OUT_SEL_50M;
break;
case 25 * MHz:
src_clk = CLK_MAC0_OUT_SEL_25M;
break;
case 24 * MHz:
src_clk = CLK_MAC0_OUT_SEL_24M;
break;
default:
return -ENOENT;
}
rk_clrsetreg(&cru->clksel_con[31 + mac_id * 2],
CLK_MAC0_OUT_SEL_MASK,
src_clk << CLK_MAC0_OUT_SEL_SHIFT);
return rk3568_gmac_out_get_clk(priv, mac_id);
}
static ulong rk3568_gmac_ptp_ref_get_clk(struct rk3568_clk_priv *priv,
ulong mac_id)
{
struct rk3568_cru *cru = priv->cru;
u32 sel, con;
con = readl(&cru->clksel_con[31 + mac_id * 2]);
sel = (con & CLK_GMAC0_PTP_REF_SEL_MASK) >> CLK_GMAC0_PTP_REF_SEL_SHIFT;
switch (sel) {
case CLK_GMAC0_PTP_REF_SEL_62_5M:
return 62500 * KHz;
case CLK_GMAC0_PTP_REF_SEL_100M:
return 100 * MHz;
case CLK_GMAC0_PTP_REF_SEL_50M:
return 50 * MHz;
case CLK_GMAC0_PTP_REF_SEL_24M:
return OSC_HZ;
default:
return -ENOENT;
}
}
static ulong rk3568_gmac_ptp_ref_set_clk(struct rk3568_clk_priv *priv,
ulong mac_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk;
switch (rate) {
case 62500 * KHz:
src_clk = CLK_GMAC0_PTP_REF_SEL_62_5M;
break;
case 100 * MHz:
src_clk = CLK_GMAC0_PTP_REF_SEL_100M;
break;
case 50 * MHz:
src_clk = CLK_GMAC0_PTP_REF_SEL_50M;
break;
case 24 * MHz:
src_clk = CLK_GMAC0_PTP_REF_SEL_24M;
break;
default:
return -ENOENT;
}
rk_clrsetreg(&cru->clksel_con[31 + mac_id * 2],
CLK_GMAC0_PTP_REF_SEL_MASK,
src_clk << CLK_GMAC0_PTP_REF_SEL_SHIFT);
return rk3568_gmac_ptp_ref_get_clk(priv, mac_id);
}
static ulong rk3568_gmac_tx_rx_set_clk(struct rk3568_clk_priv *priv,
ulong mac_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
u32 con, sel, div_sel;
con = readl(&cru->clksel_con[31 + mac_id * 2]);
sel = (con & RMII0_MODE_MASK) >> RMII0_MODE_SHIFT;
if (sel == RMII0_MODE_SEL_RGMII) {
if (rate == 2500000)
div_sel = RGMII0_CLK_SEL_2_5M;
else if (rate == 25000000)
div_sel = RGMII0_CLK_SEL_25M;
else
div_sel = RGMII0_CLK_SEL_125M;
rk_clrsetreg(&cru->clksel_con[31 + mac_id * 2],
RGMII0_CLK_SEL_MASK,
div_sel << RGMII0_CLK_SEL_SHIFT);
} else if (sel == RMII0_MODE_SEL_RMII) {
if (rate == 2500000)
div_sel = RMII0_CLK_SEL_2_5M;
else
div_sel = RMII0_CLK_SEL_25M;
rk_clrsetreg(&cru->clksel_con[31 + mac_id * 2],
RMII0_CLK_SEL_MASK,
div_sel << RMII0_CLK_SEL_SHIFT);
}
return 0;
}
static ulong rk3568_ebc_get_clk(struct rk3568_clk_priv *priv)
{
struct rk3568_cru *cru = priv->cru;
u32 con, div, p_rate;
con = readl(&cru->clksel_con[79]);
div = (con & CPLL_333M_DIV_MASK) >> CPLL_333M_DIV_SHIFT;
p_rate = DIV_TO_RATE(priv->cpll_hz, div);
con = readl(&cru->clksel_con[43]);
div = (con & DCLK_EBC_SEL_MASK) >> DCLK_EBC_SEL_SHIFT;
switch (div) {
case DCLK_EBC_SEL_GPLL_400M:
return 400 * MHz;
case DCLK_EBC_SEL_CPLL_333M:
return p_rate;
case DCLK_EBC_SEL_GPLL_200M:
return 200 * MHz;
default:
return -ENOENT;
}
}
static ulong rk3568_ebc_set_clk(struct rk3568_clk_priv *priv, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk_div;
src_clk_div = DIV_ROUND_UP(priv->cpll_hz, rate);
assert(src_clk_div - 1 <= 31);
rk_clrsetreg(&cru->clksel_con[79],
CPLL_333M_DIV_MASK,
(src_clk_div - 1) << CPLL_333M_DIV_SHIFT);
rk_clrsetreg(&cru->clksel_con[43],
DCLK_EBC_SEL_MASK,
DCLK_EBC_SEL_CPLL_333M << DCLK_EBC_SEL_SHIFT);
return rk3568_ebc_get_clk(priv);
}
static ulong rk3568_rkvdec_get_clk(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 con, div, src, p_rate;
switch (clk_id) {
case ACLK_RKVDEC_PRE:
case ACLK_RKVDEC:
con = readl(&cru->clksel_con[47]);
src = (con & ACLK_RKVDEC_SEL_MASK) >> ACLK_RKVDEC_SEL_SHIFT;
div = (con & ACLK_RKVDEC_DIV_MASK) >> ACLK_RKVDEC_DIV_SHIFT;
if (src == ACLK_RKVDEC_SEL_CPLL)
p_rate = priv->cpll_hz;
else
p_rate = priv->gpll_hz;
return DIV_TO_RATE(p_rate, div);
case CLK_RKVDEC_CORE:
con = readl(&cru->clksel_con[49]);
src = (con & CLK_RKVDEC_CORE_SEL_MASK)
>> CLK_RKVDEC_CORE_SEL_SHIFT;
div = (con & CLK_RKVDEC_CORE_DIV_MASK)
>> CLK_RKVDEC_CORE_DIV_SHIFT;
if (src == CLK_RKVDEC_CORE_SEL_CPLL)
p_rate = priv->cpll_hz;
else if (src == CLK_RKVDEC_CORE_SEL_NPLL)
p_rate = priv->npll_hz;
else if (src == CLK_RKVDEC_CORE_SEL_VPLL)
p_rate = priv->vpll_hz;
else
p_rate = priv->gpll_hz;
return DIV_TO_RATE(p_rate, div);
default:
return -ENOENT;
}
}
static ulong rk3568_rkvdec_set_clk(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
int src_clk_div, src, p_rate;
switch (clk_id) {
case ACLK_RKVDEC_PRE:
case ACLK_RKVDEC:
src = (readl(&cru->clksel_con[47]) & ACLK_RKVDEC_SEL_MASK)
>> ACLK_RKVDEC_SEL_SHIFT;
if (src == ACLK_RKVDEC_SEL_CPLL)
p_rate = priv->cpll_hz;
else
p_rate = priv->gpll_hz;
src_clk_div = DIV_ROUND_UP(p_rate, rate);
assert(src_clk_div - 1 <= 31);
rk_clrsetreg(&cru->clksel_con[47],
ACLK_RKVDEC_SEL_MASK |
ACLK_RKVDEC_DIV_MASK,
(src << ACLK_RKVDEC_SEL_SHIFT) |
(src_clk_div - 1) << ACLK_RKVDEC_DIV_SHIFT);
break;
case CLK_RKVDEC_CORE:
src = (readl(&cru->clksel_con[49]) & CLK_RKVDEC_CORE_SEL_MASK)
>> CLK_RKVDEC_CORE_SEL_SHIFT;
if (src == CLK_RKVDEC_CORE_SEL_CPLL)
p_rate = priv->cpll_hz;
else if (src == CLK_RKVDEC_CORE_SEL_NPLL)
p_rate = priv->npll_hz;
else if (src == CLK_RKVDEC_CORE_SEL_VPLL)
p_rate = priv->vpll_hz;
else
p_rate = priv->gpll_hz;
src_clk_div = DIV_ROUND_UP(p_rate, rate);
assert(src_clk_div - 1 <= 31);
rk_clrsetreg(&cru->clksel_con[49],
CLK_RKVDEC_CORE_SEL_MASK |
CLK_RKVDEC_CORE_DIV_MASK,
(src << CLK_RKVDEC_CORE_SEL_SHIFT) |
(src_clk_div - 1) << CLK_RKVDEC_CORE_DIV_SHIFT);
break;
default:
return -ENOENT;
}
return rk3568_rkvdec_get_clk(priv, clk_id);
}
static ulong rk3568_uart_get_rate(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
u32 reg, con, fracdiv, div, src, p_src, p_rate;
unsigned long m, n;
switch (clk_id) {
case SCLK_UART1:
reg = 52;
break;
case SCLK_UART2:
reg = 54;
break;
case SCLK_UART3:
reg = 56;
break;
case SCLK_UART4:
reg = 58;
break;
case SCLK_UART5:
reg = 60;
break;
case SCLK_UART6:
reg = 62;
break;
case SCLK_UART7:
reg = 64;
break;
case SCLK_UART8:
reg = 66;
break;
case SCLK_UART9:
reg = 68;
break;
default:
return -ENOENT;
}
con = readl(&cru->clksel_con[reg]);
src = (con & CLK_UART_SEL_MASK) >> CLK_UART_SEL_SHIFT;
div = (con & CLK_UART_SRC_DIV_MASK) >> CLK_UART_SRC_DIV_SHIFT;
p_src = (con & CLK_UART_SRC_SEL_MASK) >> CLK_UART_SRC_SEL_SHIFT;
if (p_src == CLK_UART_SRC_SEL_GPLL)
p_rate = priv->gpll_hz;
else if (p_src == CLK_UART_SRC_SEL_CPLL)
p_rate = priv->cpll_hz;
else
p_rate = 480000000;
if (src == CLK_UART_SEL_SRC) {
return DIV_TO_RATE(p_rate, div);
} else if (src == CLK_UART_SEL_FRAC) {
fracdiv = readl(&cru->clksel_con[reg + 1]);
n = fracdiv & CLK_UART_FRAC_NUMERATOR_MASK;
n >>= CLK_UART_FRAC_NUMERATOR_SHIFT;
m = fracdiv & CLK_UART_FRAC_DENOMINATOR_MASK;
m >>= CLK_UART_FRAC_DENOMINATOR_SHIFT;
return DIV_TO_RATE(p_rate, div) * n / m;
} else {
return OSC_HZ;
}
}
static ulong rk3568_uart_set_rate(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
u32 reg, clk_src, uart_src, div;
unsigned long m = 0, n = 0, val;
if (priv->gpll_hz % rate == 0) {
clk_src = CLK_UART_SRC_SEL_GPLL;
uart_src = CLK_UART_SEL_SRC;
div = DIV_ROUND_UP(priv->gpll_hz, rate);
} else if (priv->cpll_hz % rate == 0) {
clk_src = CLK_UART_SRC_SEL_CPLL;
uart_src = CLK_UART_SEL_SRC;
div = DIV_ROUND_UP(priv->gpll_hz, rate);
} else if (rate == OSC_HZ) {
clk_src = CLK_UART_SRC_SEL_GPLL;
uart_src = CLK_UART_SEL_XIN24M;
div = 2;
} else {
clk_src = CLK_UART_SRC_SEL_GPLL;
uart_src = CLK_UART_SEL_FRAC;
div = 2;
rational_best_approximation(rate, priv->gpll_hz / div,
GENMASK(16 - 1, 0),
GENMASK(16 - 1, 0),
&m, &n);
}
switch (clk_id) {
case SCLK_UART1:
reg = 52;
break;
case SCLK_UART2:
reg = 54;
break;
case SCLK_UART3:
reg = 56;
break;
case SCLK_UART4:
reg = 58;
break;
case SCLK_UART5:
reg = 60;
break;
case SCLK_UART6:
reg = 62;
break;
case SCLK_UART7:
reg = 64;
break;
case SCLK_UART8:
reg = 66;
break;
case SCLK_UART9:
reg = 68;
break;
default:
return -ENOENT;
}
rk_clrsetreg(&cru->clksel_con[reg],
CLK_UART_SEL_MASK | CLK_UART_SRC_SEL_MASK |
CLK_UART_SRC_DIV_MASK,
(clk_src << CLK_UART_SRC_SEL_SHIFT) |
(uart_src << CLK_UART_SEL_SHIFT) |
((div - 1) << CLK_UART_SRC_DIV_SHIFT));
if (m && n) {
val = m << CLK_UART_FRAC_NUMERATOR_SHIFT | n;
writel(val, &cru->clksel_con[reg + 1]);
}
return rk3568_uart_get_rate(priv, clk_id);
}
static ulong rk3568_i2s3_get_rate(struct rk3568_clk_priv *priv, ulong clk_id)
{
struct rk3568_cru *cru = priv->cru;
struct rk3568_grf *grf = priv->grf;
u32 con, div, src, p_rate;
u32 reg, fracdiv, p_src;
unsigned long m, n;
switch (clk_id) {
case I2S3_MCLKOUT_TX:
con = readl(&cru->clksel_con[21]);
src = (con & I2S3_MCLKOUT_TX_SEL_MASK) >>
I2S3_MCLKOUT_TX_SEL_SHIFT;
if (src == I2S3_MCLKOUT_TX_SEL_12M)
p_rate = 12000000;
else
p_rate = rk3568_i2s3_get_rate(priv, MCLK_I2S3_2CH_TX);
return p_rate;
case I2S3_MCLKOUT_RX:
con = readl(&cru->clksel_con[83]);
src = (con & I2S3_MCLKOUT_TX_SEL_MASK) >>
I2S3_MCLKOUT_TX_SEL_SHIFT;
if (src == I2S3_MCLKOUT_TX_SEL_12M)
p_rate = 12000000;
else
p_rate = rk3568_i2s3_get_rate(priv, MCLK_I2S3_2CH_RX);
return p_rate;
case I2S3_MCLKOUT:
con = readl(&grf->soc_con2);
src = (con & I2S3_MCLKOUT_SEL_MASK)
>> I2S3_MCLKOUT_SEL_SHIFT;
if (src == I2S3_MCLKOUT_SEL_RX)
p_rate = rk3568_i2s3_get_rate(priv, I2S3_MCLKOUT_RX);
else
p_rate = rk3568_i2s3_get_rate(priv, I2S3_MCLKOUT_TX);
return p_rate;
case MCLK_I2S3_2CH_RX:
reg = 83;
break;
case MCLK_I2S3_2CH_TX:
reg = 21;
break;
default:
return -ENOENT;
}
con = readl(&cru->clksel_con[reg]);
src = (con & CLK_I2S3_SEL_MASK) >> CLK_I2S3_SEL_SHIFT;
div = (con & CLK_I2S3_SRC_DIV_MASK) >> CLK_I2S3_SRC_DIV_SHIFT;
p_src = (con & CLK_I2S3_SRC_SEL_MASK) >> CLK_I2S3_SRC_SEL_SHIFT;
if (p_src == CLK_I2S3_SRC_SEL_GPLL)
p_rate = priv->gpll_hz;
else if (p_src == CLK_I2S3_SRC_SEL_CPLL)
p_rate = priv->cpll_hz;
else
p_rate = priv->npll_hz;
if (src == CLK_I2S3_SEL_SRC) {
return DIV_TO_RATE(p_rate, div);
} else if (src == CLK_I2S3_SEL_FRAC) {
fracdiv = readl(&cru->clksel_con[reg + 1]);
n = fracdiv & CLK_I2S3_FRAC_NUMERATOR_MASK;
n >>= CLK_I2S3_FRAC_NUMERATOR_SHIFT;
m = fracdiv & CLK_I2S3_FRAC_DENOMINATOR_MASK;
m >>= CLK_I2S3_FRAC_DENOMINATOR_SHIFT;
return DIV_TO_RATE(p_rate, div) * n / m;
} else {
return OSC_HZ / 2;
}
}
static ulong rk3568_i2s3_set_rate(struct rk3568_clk_priv *priv,
ulong clk_id, ulong rate)
{
struct rk3568_cru *cru = priv->cru;
struct rk3568_grf *grf = priv->grf;
u32 reg, con, clk_src, i2s_src, div;
unsigned long m = 0, n = 0, val;
if (priv->gpll_hz % rate == 0) {
clk_src = CLK_I2S3_SRC_SEL_GPLL;
i2s_src = CLK_I2S3_SEL_SRC;
div = DIV_ROUND_UP(priv->gpll_hz, rate);
} else if (priv->cpll_hz % rate == 0) {
clk_src = CLK_I2S3_SRC_SEL_CPLL;
i2s_src = CLK_I2S3_SEL_SRC;
div = DIV_ROUND_UP(priv->gpll_hz, rate);
} else if (rate == OSC_HZ / 2) {
clk_src = CLK_I2S3_SRC_SEL_GPLL;
i2s_src = CLK_I2S3_SEL_XIN12M;
div = 1;
} else {
clk_src = CLK_I2S3_SRC_SEL_GPLL;
i2s_src = CLK_I2S3_SEL_FRAC;
div = 1;
rational_best_approximation(rate, priv->gpll_hz / div,
GENMASK(16 - 1, 0),
GENMASK(16 - 1, 0),
&m, &n);
}
switch (clk_id) {
case I2S3_MCLKOUT_TX:
if (rate == 12000000) {
rk_clrsetreg(&cru->clksel_con[21],
I2S3_MCLKOUT_TX_SEL_MASK,
I2S3_MCLKOUT_TX_SEL_12M <<
I2S3_MCLKOUT_TX_SEL_SHIFT);
} else {
rk3568_i2s3_set_rate(priv, MCLK_I2S3_2CH_TX, rate),
rk_clrsetreg(&cru->clksel_con[21],
I2S3_MCLKOUT_TX_SEL_MASK,
I2S3_MCLKOUT_TX_SEL_MCLK <<
I2S3_MCLKOUT_TX_SEL_SHIFT);
}
return rk3568_i2s3_get_rate(priv, clk_id);
case I2S3_MCLKOUT_RX:
if (rate == 12000000) {
rk_clrsetreg(&cru->clksel_con[83],
I2S3_MCLKOUT_TX_SEL_MASK,
I2S3_MCLKOUT_TX_SEL_12M <<
I2S3_MCLKOUT_TX_SEL_SHIFT);
} else {
rk3568_i2s3_set_rate(priv, MCLK_I2S3_2CH_RX, rate),
rk_clrsetreg(&cru->clksel_con[21],
I2S3_MCLKOUT_TX_SEL_MASK,
I2S3_MCLKOUT_TX_SEL_MCLK <<
I2S3_MCLKOUT_TX_SEL_SHIFT);
}
return rk3568_i2s3_get_rate(priv, clk_id);
case I2S3_MCLKOUT:
con = readl(&grf->soc_con2);
clk_src = (con & I2S3_MCLKOUT_SEL_MASK)
>> I2S3_MCLKOUT_SEL_SHIFT;
if (clk_src == I2S3_MCLKOUT_SEL_RX)
rk3568_i2s3_set_rate(priv, I2S3_MCLKOUT_RX, rate);
else
rk3568_i2s3_set_rate(priv, I2S3_MCLKOUT_TX, rate);
return rk3568_i2s3_get_rate(priv, clk_id);
case MCLK_I2S3_2CH_RX:
reg = 83;
break;
case MCLK_I2S3_2CH_TX:
reg = 21;
break;
default:
return -ENOENT;
}
rk_clrsetreg(&cru->clksel_con[reg],
CLK_I2S3_SEL_MASK | CLK_I2S3_SRC_SEL_MASK |
CLK_I2S3_SRC_DIV_MASK,
(clk_src << CLK_I2S3_SRC_SEL_SHIFT) |
(i2s_src << CLK_I2S3_SEL_SHIFT) |
((div - 1) << CLK_I2S3_SRC_DIV_SHIFT));
if (m && n) {
val = m << CLK_I2S3_FRAC_NUMERATOR_SHIFT | n;
writel(val, &cru->clksel_con[reg + 1]);
}
return rk3568_i2s3_get_rate(priv, clk_id);
}
#endif
static ulong rk3568_clk_get_rate(struct clk *clk)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
ulong rate = 0;
if (!priv->gpll_hz) {
printf("%s gpll=%lu\n", __func__, priv->gpll_hz);
return -ENOENT;
}
switch (clk->id) {
case PLL_APLL:
case ARMCLK:
rate = rockchip_pll_get_rate(&rk3568_pll_clks[APLL], priv->cru,
APLL);
break;
case PLL_CPLL:
rate = rockchip_pll_get_rate(&rk3568_pll_clks[CPLL], priv->cru,
CPLL);
break;
case PLL_GPLL:
rate = rockchip_pll_get_rate(&rk3568_pll_clks[GPLL], priv->cru,
GPLL);
break;
case PLL_NPLL:
rate = rockchip_pll_get_rate(&rk3568_pll_clks[NPLL], priv->cru,
NPLL);
break;
case PLL_VPLL:
rate = rockchip_pll_get_rate(&rk3568_pll_clks[VPLL], priv->cru,
VPLL);
break;
case PLL_DPLL:
rate = rockchip_pll_get_rate(&rk3568_pll_clks[DPLL], priv->cru,
DPLL);
break;
case ACLK_BUS:
case PCLK_BUS:
case PCLK_WDT_NS:
rate = rk3568_bus_get_clk(priv, clk->id);
break;
case ACLK_PERIMID:
case HCLK_PERIMID:
rate = rk3568_perimid_get_clk(priv, clk->id);
break;
case ACLK_TOP_HIGH:
case ACLK_TOP_LOW:
case HCLK_TOP:
case PCLK_TOP:
rate = rk3568_top_get_clk(priv, clk->id);
break;
case CLK_I2C1:
case CLK_I2C2:
case CLK_I2C3:
case CLK_I2C4:
case CLK_I2C5:
rate = rk3568_i2c_get_clk(priv, clk->id);
break;
case CLK_SPI0:
case CLK_SPI1:
case CLK_SPI2:
case CLK_SPI3:
rate = rk3568_spi_get_clk(priv, clk->id);
break;
case CLK_PWM1:
case CLK_PWM2:
case CLK_PWM3:
rate = rk3568_pwm_get_clk(priv, clk->id);
break;
case CLK_SARADC:
case CLK_TSADC_TSEN:
case CLK_TSADC:
rate = rk3568_adc_get_clk(priv, clk->id);
break;
case HCLK_SDMMC0:
case CLK_SDMMC0:
case CLK_SDMMC1:
case CLK_SDMMC2:
rate = rk3568_sdmmc_get_clk(priv, clk->id);
break;
case SCLK_SFC:
rate = rk3568_sfc_get_clk(priv);
break;
case NCLK_NANDC:
rate = rk3568_nand_get_clk(priv);
break;
case CCLK_EMMC:
rate = rk3568_emmc_get_clk(priv);
break;
case BCLK_EMMC:
rate = rk3568_emmc_get_bclk(priv);
break;
case TCLK_EMMC:
rate = OSC_HZ;
break;
#ifndef CONFIG_SPL_BUILD
case ACLK_VOP:
rate = rk3568_aclk_vop_get_clk(priv);
break;
case DCLK_VOP0:
case DCLK_VOP1:
case DCLK_VOP2:
rate = rk3568_dclk_vop_get_clk(priv, clk->id);
break;
case SCLK_GMAC0:
case CLK_MAC0_2TOP:
case CLK_MAC0_REFOUT:
rate = rk3568_gmac_src_get_clk(priv, 0);
break;
case CLK_MAC0_OUT:
rate = rk3568_gmac_out_get_clk(priv, 0);
break;
case CLK_GMAC0_PTP_REF:
rate = rk3568_gmac_ptp_ref_get_clk(priv, 0);
break;
case SCLK_GMAC1:
case CLK_MAC1_2TOP:
case CLK_MAC1_REFOUT:
rate = rk3568_gmac_src_get_clk(priv, 1);
break;
case CLK_MAC1_OUT:
rate = rk3568_gmac_out_get_clk(priv, 1);
break;
case CLK_GMAC1_PTP_REF:
rate = rk3568_gmac_ptp_ref_get_clk(priv, 1);
break;
case DCLK_EBC:
rate = rk3568_ebc_get_clk(priv);
break;
case ACLK_RKVDEC_PRE:
case ACLK_RKVDEC:
case CLK_RKVDEC_CORE:
rate = rk3568_rkvdec_get_clk(priv, clk->id);
break;
case TCLK_WDT_NS:
rate = OSC_HZ;
break;
case SCLK_UART1:
case SCLK_UART2:
case SCLK_UART3:
case SCLK_UART4:
case SCLK_UART5:
case SCLK_UART6:
case SCLK_UART7:
case SCLK_UART8:
case SCLK_UART9:
rate = rk3568_uart_get_rate(priv, clk->id);
break;
case I2S3_MCLKOUT_RX:
case I2S3_MCLKOUT_TX:
case MCLK_I2S3_2CH_RX:
case MCLK_I2S3_2CH_TX:
case I2S3_MCLKOUT:
rate = rk3568_i2s3_get_rate(priv, clk->id);
break;
#endif
case ACLK_SECURE_FLASH:
case ACLK_CRYPTO_NS:
case HCLK_SECURE_FLASH:
case HCLK_CRYPTO_NS:
case CLK_CRYPTO_NS_RNG:
case CLK_CRYPTO_NS_CORE:
case CLK_CRYPTO_NS_PKA:
rate = rk3568_crypto_get_rate(priv, clk->id);
break;
case CPLL_500M:
case CPLL_333M:
case CPLL_250M:
case CPLL_125M:
case CPLL_100M:
case CPLL_62P5M:
case CPLL_50M:
case CPLL_25M:
rate = rk3568_cpll_div_get_rate(priv, clk->id);
break;
default:
return -ENOENT;
}
return rate;
};
static ulong rk3568_clk_set_rate(struct clk *clk, ulong rate)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
ulong ret = 0;
if (!priv->gpll_hz) {
printf("%s gpll=%lu\n", __func__, priv->gpll_hz);
return -ENOENT;
}
switch (clk->id) {
case PLL_APLL:
case ARMCLK:
if (priv->armclk_hz)
rk3568_armclk_set_clk(priv, rate);
priv->armclk_hz = rate;
break;
case PLL_CPLL:
ret = rockchip_pll_set_rate(&rk3568_pll_clks[CPLL], priv->cru,
CPLL, rate);
priv->cpll_hz = rockchip_pll_get_rate(&rk3568_pll_clks[CPLL],
priv->cru, CPLL);
break;
case PLL_GPLL:
ret = rockchip_pll_set_rate(&rk3568_pll_clks[GPLL], priv->cru,
GPLL, rate);
priv->gpll_hz = rockchip_pll_get_rate(&rk3568_pll_clks[GPLL],
priv->cru, GPLL);
break;
case PLL_NPLL:
ret = rockchip_pll_set_rate(&rk3568_pll_clks[NPLL], priv->cru,
NPLL, rate);
break;
case PLL_VPLL:
ret = rockchip_pll_set_rate(&rk3568_pll_clks[VPLL], priv->cru,
VPLL, rate);
priv->vpll_hz = rockchip_pll_get_rate(&rk3568_pll_clks[VPLL],
priv->cru,
VPLL);
break;
case ACLK_BUS:
case PCLK_BUS:
case PCLK_WDT_NS:
ret = rk3568_bus_set_clk(priv, clk->id, rate);
break;
case ACLK_PERIMID:
case HCLK_PERIMID:
ret = rk3568_perimid_set_clk(priv, clk->id, rate);
break;
case ACLK_TOP_HIGH:
case ACLK_TOP_LOW:
case HCLK_TOP:
case PCLK_TOP:
ret = rk3568_top_set_clk(priv, clk->id, rate);
break;
case CLK_I2C1:
case CLK_I2C2:
case CLK_I2C3:
case CLK_I2C4:
case CLK_I2C5:
ret = rk3568_i2c_set_clk(priv, clk->id, rate);
break;
case CLK_SPI0:
case CLK_SPI1:
case CLK_SPI2:
case CLK_SPI3:
ret = rk3568_spi_set_clk(priv, clk->id, rate);
break;
case CLK_PWM1:
case CLK_PWM2:
case CLK_PWM3:
ret = rk3568_pwm_set_clk(priv, clk->id, rate);
break;
case CLK_SARADC:
case CLK_TSADC_TSEN:
case CLK_TSADC:
ret = rk3568_adc_set_clk(priv, clk->id, rate);
break;
case HCLK_SDMMC0:
case CLK_SDMMC0:
case CLK_SDMMC1:
case CLK_SDMMC2:
ret = rk3568_sdmmc_set_clk(priv, clk->id, rate);
break;
case SCLK_SFC:
ret = rk3568_sfc_set_clk(priv, rate);
break;
case NCLK_NANDC:
ret = rk3568_nand_set_clk(priv, rate);
break;
case CCLK_EMMC:
ret = rk3568_emmc_set_clk(priv, rate);
break;
case BCLK_EMMC:
ret = rk3568_emmc_set_bclk(priv, rate);
break;
case TCLK_EMMC:
ret = OSC_HZ;
break;
#ifndef CONFIG_SPL_BUILD
case ACLK_VOP:
ret = rk3568_aclk_vop_set_clk(priv, rate);
break;
case DCLK_VOP0:
case DCLK_VOP1:
case DCLK_VOP2:
ret = rk3568_dclk_vop_set_clk(priv, clk->id, rate);
break;
case SCLK_GMAC0:
case CLK_MAC0_2TOP:
case CLK_MAC0_REFOUT:
ret = rk3568_gmac_src_set_clk(priv, 0, rate);
break;
case CLK_MAC0_OUT:
ret = rk3568_gmac_out_set_clk(priv, 0, rate);
break;
case SCLK_GMAC0_RX_TX:
ret = rk3568_gmac_tx_rx_set_clk(priv, 0, rate);
break;
case CLK_GMAC0_PTP_REF:
ret = rk3568_gmac_ptp_ref_set_clk(priv, 0, rate);
break;
case SCLK_GMAC1:
case CLK_MAC1_2TOP:
case CLK_MAC1_REFOUT:
ret = rk3568_gmac_src_set_clk(priv, 1, rate);
break;
case CLK_MAC1_OUT:
ret = rk3568_gmac_out_set_clk(priv, 1, rate);
break;
case SCLK_GMAC1_RX_TX:
ret = rk3568_gmac_tx_rx_set_clk(priv, 1, rate);
break;
case CLK_GMAC1_PTP_REF:
ret = rk3568_gmac_ptp_ref_set_clk(priv, 1, rate);
break;
case DCLK_EBC:
ret = rk3568_ebc_set_clk(priv, rate);
break;
case ACLK_RKVDEC_PRE:
case ACLK_RKVDEC:
case CLK_RKVDEC_CORE:
ret = rk3568_rkvdec_set_clk(priv, clk->id, rate);
break;
case TCLK_WDT_NS:
ret = OSC_HZ;
break;
case SCLK_UART1:
case SCLK_UART2:
case SCLK_UART3:
case SCLK_UART4:
case SCLK_UART5:
case SCLK_UART6:
case SCLK_UART7:
case SCLK_UART8:
case SCLK_UART9:
ret = rk3568_uart_set_rate(priv, clk->id, rate);
break;
case I2S3_MCLKOUT_RX:
case I2S3_MCLKOUT_TX:
case MCLK_I2S3_2CH_RX:
case MCLK_I2S3_2CH_TX:
case I2S3_MCLKOUT:
ret = rk3568_i2s3_set_rate(priv, clk->id, rate);
break;
#endif
case ACLK_SECURE_FLASH:
case ACLK_CRYPTO_NS:
case HCLK_SECURE_FLASH:
case HCLK_CRYPTO_NS:
case CLK_CRYPTO_NS_RNG:
case CLK_CRYPTO_NS_CORE:
case CLK_CRYPTO_NS_PKA:
ret = rk3568_crypto_set_rate(priv, clk->id, rate);
break;
case CPLL_500M:
case CPLL_333M:
case CPLL_250M:
case CPLL_125M:
case CPLL_100M:
case CPLL_62P5M:
case CPLL_50M:
case CPLL_25M:
ret = rk3568_cpll_div_set_rate(priv, clk->id, rate);
break;
default:
return -ENOENT;
}
return ret;
};
#define ROCKCHIP_MMC_DELAY_SEL BIT(10)
#define ROCKCHIP_MMC_DEGREE_MASK 0x3
#define ROCKCHIP_MMC_DELAYNUM_OFFSET 2
#define ROCKCHIP_MMC_DELAYNUM_MASK (0xff << ROCKCHIP_MMC_DELAYNUM_OFFSET)
#define PSECS_PER_SEC 1000000000000LL
/*
* Each fine delay is between 44ps-77ps. Assume each fine delay is 60ps to
* simplify calculations. So 45degs could be anywhere between 33deg and 57.8deg.
*/
#define ROCKCHIP_MMC_DELAY_ELEMENT_PSEC 60
int rk3568_mmc_get_phase(struct clk *clk)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
struct rk3568_cru *cru = priv->cru;
u32 raw_value, delay_num;
u16 degrees = 0;
ulong rate;
rate = rk3568_clk_get_rate(clk);
if (rate < 0)
return rate;
if (clk->id == SCLK_EMMC_SAMPLE)
raw_value = readl(&cru->emmc_con[1]);
else if (clk->id == SCLK_SDMMC0_SAMPLE)
raw_value = readl(&cru->sdmmc0_con[1]);
else if (clk->id == SCLK_SDMMC1_SAMPLE)
raw_value = readl(&cru->sdmmc1_con[1]);
else
raw_value = readl(&cru->sdmmc2_con[1]);
raw_value >>= 1;
degrees = (raw_value & ROCKCHIP_MMC_DEGREE_MASK) * 90;
if (raw_value & ROCKCHIP_MMC_DELAY_SEL) {
/* degrees/delaynum * 10000 */
unsigned long factor = (ROCKCHIP_MMC_DELAY_ELEMENT_PSEC / 10) *
36 * (rate / 1000000);
delay_num = (raw_value & ROCKCHIP_MMC_DELAYNUM_MASK);
delay_num >>= ROCKCHIP_MMC_DELAYNUM_OFFSET;
degrees += DIV_ROUND_CLOSEST(delay_num * factor, 10000);
}
return degrees % 360;
}
int rk3568_mmc_set_phase(struct clk *clk, u32 degrees)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
struct rk3568_cru *cru = priv->cru;
u8 nineties, remainder, delay_num;
u32 raw_value, delay;
ulong rate;
rate = rk3568_clk_get_rate(clk);
if (rate < 0)
return rate;
nineties = degrees / 90;
remainder = (degrees % 90);
/*
* Convert to delay; do a little extra work to make sure we
* don't overflow 32-bit / 64-bit numbers.
*/
delay = 10000000; /* PSECS_PER_SEC / 10000 / 10 */
delay *= remainder;
delay = DIV_ROUND_CLOSEST(delay, (rate / 1000) * 36 *
(ROCKCHIP_MMC_DELAY_ELEMENT_PSEC / 10));
delay_num = (u8)min_t(u32, delay, 255);
raw_value = delay_num ? ROCKCHIP_MMC_DELAY_SEL : 0;
raw_value |= delay_num << ROCKCHIP_MMC_DELAYNUM_OFFSET;
raw_value |= nineties;
raw_value <<= 1;
if (clk->id == SCLK_EMMC_SAMPLE)
writel(raw_value | 0xffff0000, &cru->emmc_con[1]);
else if (clk->id == SCLK_SDMMC0_SAMPLE)
writel(raw_value | 0xffff0000, &cru->sdmmc0_con[1]);
else if (clk->id == SCLK_SDMMC1_SAMPLE)
writel(raw_value | 0xffff0000, &cru->sdmmc1_con[1]);
else
writel(raw_value | 0xffff0000, &cru->sdmmc2_con[1]);
debug("mmc set_phase(%d) delay_nums=%u reg=%#x actual_degrees=%d\n",
degrees, delay_num, raw_value, rk3568_mmc_get_phase(clk));
return 0;
}
static int rk3568_clk_get_phase(struct clk *clk)
{
int ret;
debug("%s %ld\n", __func__, clk->id);
switch (clk->id) {
case SCLK_EMMC_SAMPLE:
case SCLK_SDMMC0_SAMPLE:
case SCLK_SDMMC1_SAMPLE:
case SCLK_SDMMC2_SAMPLE:
ret = rk3568_mmc_get_phase(clk);
break;
default:
return -ENOENT;
}
return ret;
}
static int rk3568_clk_set_phase(struct clk *clk, int degrees)
{
int ret;
debug("%s %ld\n", __func__, clk->id);
switch (clk->id) {
case SCLK_EMMC_SAMPLE:
case SCLK_SDMMC0_SAMPLE:
case SCLK_SDMMC1_SAMPLE:
case SCLK_SDMMC2_SAMPLE:
ret = rk3568_mmc_set_phase(clk, degrees);
break;
default:
return -ENOENT;
}
return ret;
}
#if (IS_ENABLED(OF_CONTROL)) || (!IS_ENABLED(OF_PLATDATA))
static int rk3568_gmac0_src_set_parent(struct clk *clk, struct clk *parent)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
struct rk3568_cru *cru = priv->cru;
if (parent->id == CLK_MAC0_2TOP)
rk_clrsetreg(&cru->clksel_con[31],
RMII0_EXTCLK_SEL_MASK,
RMII0_EXTCLK_SEL_MAC0_TOP <<
RMII0_EXTCLK_SEL_SHIFT);
else
rk_clrsetreg(&cru->clksel_con[31],
RMII0_EXTCLK_SEL_MASK,
RMII0_EXTCLK_SEL_IO << RMII0_EXTCLK_SEL_SHIFT);
return 0;
}
static int rk3568_gmac1_src_set_parent(struct clk *clk, struct clk *parent)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
struct rk3568_cru *cru = priv->cru;
if (parent->id == CLK_MAC1_2TOP)
rk_clrsetreg(&cru->clksel_con[33],
RMII0_EXTCLK_SEL_MASK,
RMII0_EXTCLK_SEL_MAC0_TOP <<
RMII0_EXTCLK_SEL_SHIFT);
else
rk_clrsetreg(&cru->clksel_con[33],
RMII0_EXTCLK_SEL_MASK,
RMII0_EXTCLK_SEL_IO << RMII0_EXTCLK_SEL_SHIFT);
return 0;
}
static int rk3568_gmac0_tx_rx_set_parent(struct clk *clk, struct clk *parent)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
struct rk3568_cru *cru = priv->cru;
if (parent->id == SCLK_GMAC0_RGMII_SPEED)
rk_clrsetreg(&cru->clksel_con[31],
RMII0_MODE_MASK,
RMII0_MODE_SEL_RGMII << RMII0_MODE_SHIFT);
else if (parent->id == SCLK_GMAC0_RMII_SPEED)
rk_clrsetreg(&cru->clksel_con[31],
RMII0_MODE_MASK,
RMII0_MODE_SEL_RMII << RMII0_MODE_SHIFT);
else
rk_clrsetreg(&cru->clksel_con[31],
RMII0_MODE_MASK,
RMII0_MODE_SEL_GMII << RMII0_MODE_SHIFT);
return 0;
}
static int rk3568_gmac1_tx_rx_set_parent(struct clk *clk, struct clk *parent)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
struct rk3568_cru *cru = priv->cru;
if (parent->id == SCLK_GMAC1_RGMII_SPEED)
rk_clrsetreg(&cru->clksel_con[33],
RMII0_MODE_MASK,
RMII0_MODE_SEL_RGMII << RMII0_MODE_SHIFT);
else if (parent->id == SCLK_GMAC1_RMII_SPEED)
rk_clrsetreg(&cru->clksel_con[33],
RMII0_MODE_MASK,
RMII0_MODE_SEL_RMII << RMII0_MODE_SHIFT);
else
rk_clrsetreg(&cru->clksel_con[33],
RMII0_MODE_MASK,
RMII0_MODE_SEL_GMII << RMII0_MODE_SHIFT);
return 0;
}
static int __maybe_unused rk3568_dclk_vop_set_parent(struct clk *clk,
struct clk *parent)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
struct rk3568_cru *cru = priv->cru;
u32 con_id;
switch (clk->id) {
case DCLK_VOP0:
con_id = 39;
break;
case DCLK_VOP1:
con_id = 40;
break;
case DCLK_VOP2:
con_id = 41;
break;
default:
return -EINVAL;
}
if (parent->id == PLL_VPLL) {
rk_clrsetreg(&cru->clksel_con[con_id], DCLK0_VOP_SEL_MASK,
DCLK_VOP_SEL_VPLL << DCLK0_VOP_SEL_SHIFT);
} else {
rk_clrsetreg(&cru->clksel_con[con_id], DCLK0_VOP_SEL_MASK,
DCLK_VOP_SEL_HPLL << DCLK0_VOP_SEL_SHIFT);
}
return 0;
}
static int __maybe_unused rk3568_rkvdec_set_parent(struct clk *clk,
struct clk *parent)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
struct rk3568_cru *cru = priv->cru;
u32 con_id, mask, shift;
switch (clk->id) {
case ACLK_RKVDEC_PRE:
con_id = 47;
mask = ACLK_RKVDEC_SEL_MASK;
shift = ACLK_RKVDEC_SEL_SHIFT;
break;
case CLK_RKVDEC_CORE:
con_id = 49;
mask = CLK_RKVDEC_CORE_SEL_MASK;
shift = CLK_RKVDEC_CORE_SEL_SHIFT;
break;
default:
return -EINVAL;
}
if (parent->id == PLL_CPLL) {
rk_clrsetreg(&cru->clksel_con[con_id], mask,
ACLK_RKVDEC_SEL_CPLL << shift);
} else {
rk_clrsetreg(&cru->clksel_con[con_id], mask,
ACLK_RKVDEC_SEL_GPLL << shift);
}
return 0;
}
static int __maybe_unused rk3568_i2s3_set_parent(struct clk *clk,
struct clk *parent)
{
struct rk3568_clk_priv *priv = dev_get_priv(clk->dev);
struct rk3568_grf *grf = priv->grf;
switch (clk->id) {
case I2S3_MCLK_IOE:
if (parent->id == I2S3_MCLKOUT) {
rk_clrsetreg(&grf->soc_con2, I2S3_MCLK_IOE_SEL_MASK,
I2S3_MCLK_IOE_SEL_CLKOUT <<
I2S3_MCLK_IOE_SEL_SHIFT);
} else {
rk_clrsetreg(&grf->soc_con2, I2S3_MCLK_IOE_SEL_MASK,
I2S3_MCLK_IOE_SEL_CLKIN <<
I2S3_MCLK_IOE_SEL_SHIFT);
}
break;
case I2S3_MCLKOUT:
if (parent->id == I2S3_MCLKOUT_RX) {
rk_clrsetreg(&grf->soc_con2, I2S3_MCLKOUT_SEL_MASK,
I2S3_MCLKOUT_SEL_RX <<
I2S3_MCLKOUT_SEL_SHIFT);
} else {
rk_clrsetreg(&grf->soc_con2, I2S3_MCLKOUT_SEL_MASK,
I2S3_MCLKOUT_SEL_TX <<
I2S3_MCLKOUT_SEL_SHIFT);
}
break;
default:
return -EINVAL;
}
return 0;
}
static int rk3568_clk_set_parent(struct clk *clk, struct clk *parent)
{
switch (clk->id) {
case SCLK_GMAC0:
return rk3568_gmac0_src_set_parent(clk, parent);
case SCLK_GMAC1:
return rk3568_gmac1_src_set_parent(clk, parent);
case SCLK_GMAC0_RX_TX:
return rk3568_gmac0_tx_rx_set_parent(clk, parent);
case SCLK_GMAC1_RX_TX:
return rk3568_gmac1_tx_rx_set_parent(clk, parent);
case DCLK_VOP0:
case DCLK_VOP1:
case DCLK_VOP2:
return rk3568_dclk_vop_set_parent(clk, parent);
case ACLK_RKVDEC_PRE:
case CLK_RKVDEC_CORE:
return rk3568_rkvdec_set_parent(clk, parent);
case I2S3_MCLK_IOE:
case I2S3_MCLKOUT:
return rk3568_i2s3_set_parent(clk, parent);
default:
return -ENOENT;
}
return 0;
}
#endif
static struct clk_ops rk3568_clk_ops = {
.get_rate = rk3568_clk_get_rate,
.set_rate = rk3568_clk_set_rate,
.get_phase = rk3568_clk_get_phase,
.set_phase = rk3568_clk_set_phase,
#if (IS_ENABLED(OF_CONTROL)) || (!IS_ENABLED(OF_PLATDATA))
.set_parent = rk3568_clk_set_parent,
#endif
};
static void rk3568_clk_init(struct rk3568_clk_priv *priv)
{
int ret;
priv->sync_kernel = false;
if (!priv->armclk_enter_hz) {
priv->armclk_enter_hz =
rockchip_pll_get_rate(&rk3568_pll_clks[APLL],
priv->cru, APLL);
priv->armclk_init_hz = priv->armclk_enter_hz;
}
if (priv->armclk_init_hz != APLL_HZ) {
ret = rk3568_armclk_set_clk(priv, APLL_HZ);
if (!ret)
priv->armclk_init_hz = APLL_HZ;
}
if (priv->cpll_hz != CPLL_HZ) {
ret = rockchip_pll_set_rate(&rk3568_pll_clks[CPLL], priv->cru,
CPLL, CPLL_HZ);
if (!ret)
priv->cpll_hz = CPLL_HZ;
}
if (priv->gpll_hz != GPLL_HZ) {
ret = rockchip_pll_set_rate(&rk3568_pll_clks[GPLL], priv->cru,
GPLL, GPLL_HZ);
if (!ret)
priv->gpll_hz = GPLL_HZ;
}
#ifdef CONFIG_SPL_BUILD
ret = rk3568_bus_set_clk(priv, ACLK_BUS, 150000000);
if (ret < 0)
printf("Fail to set the ACLK_BUS clock.\n");
#endif
priv->ppll_hz = rk3568_pmu_pll_get_rate(priv, PPLL);
priv->hpll_hz = rk3568_pmu_pll_get_rate(priv, HPLL);
}
static int rk3568_clk_probe(struct udevice *dev)
{
struct rk3568_clk_priv *priv = dev_get_priv(dev);
int ret;
priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
if (IS_ERR(priv->grf))
return PTR_ERR(priv->grf);
rk3568_clk_init(priv);
/* Process 'assigned-{clocks/clock-parents/clock-rates}' properties */
ret = clk_set_defaults(dev);
if (ret)
debug("%s clk_set_defaults failed %d\n", __func__, ret);
else
priv->sync_kernel = true;
return 0;
}
static int rk3568_clk_ofdata_to_platdata(struct udevice *dev)
{
struct rk3568_clk_priv *priv = dev_get_priv(dev);
priv->cru = dev_read_addr_ptr(dev);
return 0;
}
static int rk3568_clk_bind(struct udevice *dev)
{
int ret;
struct udevice *sys_child, *sf_child;
struct sysreset_reg *priv;
struct softreset_reg *sf_priv;
/* The reset driver does not have a device node, so bind it here */
ret = device_bind_driver(dev, "rockchip_sysreset", "sysreset",
&sys_child);
if (ret) {
debug("Warning: No sysreset driver: ret=%d\n", ret);
} else {
priv = malloc(sizeof(struct sysreset_reg));
priv->glb_srst_fst_value = offsetof(struct rk3568_cru,
glb_srst_fst);
priv->glb_srst_snd_value = offsetof(struct rk3568_cru,
glb_srsr_snd);
sys_child->priv = priv;
}
ret = device_bind_driver_to_node(dev, "rockchip_reset", "reset",
dev_ofnode(dev), &sf_child);
if (ret) {
debug("Warning: No rockchip reset driver: ret=%d\n", ret);
} else {
sf_priv = malloc(sizeof(struct softreset_reg));
sf_priv->sf_reset_offset = offsetof(struct rk3568_cru,
softrst_con[0]);
sf_priv->sf_reset_num = 30;
sf_child->priv = sf_priv;
}
return 0;
}
static const struct udevice_id rk3568_clk_ids[] = {
{ .compatible = "rockchip,rk3568-cru" },
{ }
};
U_BOOT_DRIVER(rockchip_rk3568_cru) = {
.name = "rockchip_rk3568_cru",
.id = UCLASS_CLK,
.of_match = rk3568_clk_ids,
.priv_auto_alloc_size = sizeof(struct rk3568_clk_priv),
.ofdata_to_platdata = rk3568_clk_ofdata_to_platdata,
.ops = &rk3568_clk_ops,
.bind = rk3568_clk_bind,
.probe = rk3568_clk_probe,
};
#ifndef CONFIG_SPL_BUILD
/**
* soc_clk_dump() - Print clock frequencies
* Returns zero on success
*
* Implementation for the clk dump command.
*/
int soc_clk_dump(void)
{
struct udevice *cru_dev, *pmucru_dev;
struct rk3568_clk_priv *priv;
const struct rk3568_clk_info *clk_dump;
struct clk clk;
unsigned long clk_count = ARRAY_SIZE(clks_dump);
unsigned long rate;
int i, ret;
ret = uclass_get_device_by_driver(UCLASS_CLK,
DM_GET_DRIVER(rockchip_rk3568_cru),
&cru_dev);
if (ret) {
printf("%s failed to get cru device\n", __func__);
return ret;
}
ret = uclass_get_device_by_driver(UCLASS_CLK,
DM_GET_DRIVER(rockchip_rk3568_pmucru),
&pmucru_dev);
if (ret) {
printf("%s failed to get pmucru device\n", __func__);
return ret;
}
priv = dev_get_priv(cru_dev);
printf("CLK: (%s. arm: enter %lu KHz, init %lu KHz, kernel %lu%s)\n",
priv->sync_kernel ? "sync kernel" : "uboot",
priv->armclk_enter_hz / 1000,
priv->armclk_init_hz / 1000,
priv->set_armclk_rate ? priv->armclk_hz / 1000 : 0,
priv->set_armclk_rate ? " KHz" : "N/A");
for (i = 0; i < clk_count; i++) {
clk_dump = &clks_dump[i];
if (clk_dump->name) {
clk.id = clk_dump->id;
if (clk_dump->is_cru)
ret = clk_request(cru_dev, &clk);
else
ret = clk_request(pmucru_dev, &clk);
if (ret < 0)
return ret;
rate = clk_get_rate(&clk);
clk_free(&clk);
if (i == 0) {
if (rate < 0)
printf(" %s %s\n", clk_dump->name,
"unknown");
else
printf(" %s %lu KHz\n", clk_dump->name,
rate / 1000);
} else {
if (rate < 0)
printf(" %s %s\n", clk_dump->name,
"unknown");
else
printf(" %s %lu KHz\n", clk_dump->name,
rate / 1000);
}
}
}
return 0;
}
#endif