Add clock driver support for Rockchip RV1126 SoC.
Signed-off-by: Joseph Chen <che...@rock-chips.com>
Signed-off-by: Jagan Teki <ja...@edgeble.ai>
---
drivers/clk/rockchip/Makefile | 1 +
drivers/clk/rockchip/clk_rv1126.c | 1889 +++++++++++++++++++++++++++++
2 files changed, 1890 insertions(+)
create mode 100644 drivers/clk/rockchip/clk_rv1126.c
diff --git a/drivers/clk/rockchip/Makefile b/drivers/clk/rockchip/Makefile
index a72d8fe58a..f719f4e379 100644
--- a/drivers/clk/rockchip/Makefile
+++ b/drivers/clk/rockchip/Makefile
@@ -17,3 +17,4 @@ obj-$(CONFIG_ROCKCHIP_RK3368) += clk_rk3368.o
obj-$(CONFIG_ROCKCHIP_RK3399) += clk_rk3399.o
obj-$(CONFIG_ROCKCHIP_RK3568) += clk_rk3568.o
obj-$(CONFIG_ROCKCHIP_RV1108) += clk_rv1108.o
+obj-$(CONFIG_ROCKCHIP_RV1126) += clk_rv1126.o
diff --git a/drivers/clk/rockchip/clk_rv1126.c
b/drivers/clk/rockchip/clk_rv1126.c
new file mode 100644
index 0000000000..f28699aaa0
--- /dev/null
+++ b/drivers/clk/rockchip/clk_rv1126.c
@@ -0,0 +1,1889 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd
+ * Copyright (c) 2022 Edgeble AI Technologies Pvt. Ltd.
+ * Author: Finley Xiao <finley.x...@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-rockchip/clock.h>
+#include <asm/arch-rockchip/cru_rv1126.h>
+#include <asm/arch-rockchip/grf_rv1126.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <dm/device-internal.h>
+#include <asm/io.h>
+#include <dm/lists.h>
+#include <dt-bindings/clock/rv1126-cru.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define RV1126_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 rv1126_cpu_rates[] = {
+ RV1126_CPUCLK_RATE(1200000000, 1, 5),
+ RV1126_CPUCLK_RATE(1008000000, 1, 5),
+ RV1126_CPUCLK_RATE(816000000, 1, 3),
+ RV1126_CPUCLK_RATE(600000000, 1, 3),
+ RV1126_CPUCLK_RATE(408000000, 1, 1),
+};
+
+static struct rockchip_pll_rate_table rv1126_pll_rates[] = {
+ /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
+ RK3036_PLL_RATE(1600000000, 3, 200, 1, 1, 1, 0),
+ RK3036_PLL_RATE(1400000000, 3, 350, 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(1100000000, 3, 275, 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(816000000, 1, 68, 2, 1, 1, 0),
+ RK3036_PLL_RATE(800000000, 3, 200, 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(200000000, 1, 100, 6, 2, 1, 0),
+ RK3036_PLL_RATE(100000000, 1, 100, 6, 4, 1, 0),
+ { /* sentinel */ },
+};
+
+static struct rockchip_pll_clock rv1126_pll_clks[] = {
+ [APLL] = PLL(pll_rk3328, PLL_APLL, RV1126_PLL_CON(0),
+ RV1126_MODE_CON, 0, 10, 0, rv1126_pll_rates),
+ [DPLL] = PLL(pll_rk3328, PLL_DPLL, RV1126_PLL_CON(8),
+ RV1126_MODE_CON, 2, 10, 0, NULL),
+ [CPLL] = PLL(pll_rk3328, PLL_CPLL, RV1126_PLL_CON(16),
+ RV1126_MODE_CON, 4, 10, 0, rv1126_pll_rates),
+ [HPLL] = PLL(pll_rk3328, PLL_HPLL, RV1126_PLL_CON(24),
+ RV1126_MODE_CON, 6, 10, 0, rv1126_pll_rates),
+ [GPLL] = PLL(pll_rk3328, PLL_GPLL, RV1126_PMU_PLL_CON(0),
+ RV1126_PMU_MODE, 0, 10, 0, rv1126_pll_rates),
+};
+
+static ulong rv1126_gpll_set_rate(struct rv1126_clk_priv *priv,
+ struct rv1126_pmuclk_priv *pmu_priv,
+ ulong rate);
+/*
+ *
+ * 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 rv1126_gpll_get_pmuclk(struct rv1126_pmuclk_priv *priv)
+{
+ return rockchip_pll_get_rate(&rv1126_pll_clks[GPLL],
+ priv->pmucru, GPLL);
+}
+
+static ulong rv1126_gpll_set_pmuclk(struct rv1126_pmuclk_priv *pmu_priv, ulong
rate)
+{
+ struct udevice *cru_dev;
+ struct rv1126_clk_priv *priv;
+ int ret;
+
+ ret = uclass_get_device_by_driver(UCLASS_CLK,
+ DM_DRIVER_GET(rockchip_rv1126_cru),
+ &cru_dev);
+ if (ret) {
+ printf("%s: could not find cru device\n", __func__);
+ return ret;
+ }
+ priv = dev_get_priv(cru_dev);
+
+ if (rv1126_gpll_set_rate(priv, pmu_priv, rate)) {
+ printf("%s: failed to set gpll rate %lu\n", __func__, rate);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static ulong rv1126_rtc32k_get_pmuclk(struct rv1126_pmuclk_priv *priv)
+{
+ struct rv1126_pmucru *pmucru = priv->pmucru;
+ unsigned long m, n;
+ u32 fracdiv;
+
+ fracdiv = readl(&pmucru->pmu_clksel_con[13]);
+ m = fracdiv & CLK_RTC32K_FRAC_NUMERATOR_MASK;
+ m >>= CLK_RTC32K_FRAC_NUMERATOR_SHIFT;
+ n = fracdiv & CLK_RTC32K_FRAC_DENOMINATOR_MASK;
+ n >>= CLK_RTC32K_FRAC_DENOMINATOR_SHIFT;
+
+ return OSC_HZ * m / n;
+}
+
+static ulong rv1126_rtc32k_set_pmuclk(struct rv1126_pmuclk_priv *priv,
+ ulong rate)
+{
+ struct rv1126_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 << CLK_RTC32K_FRAC_NUMERATOR_SHIFT | n;
+ writel(val, &pmucru->pmu_clksel_con[13]);
+
+ return rv1126_rtc32k_get_pmuclk(priv);
+}
+
+static ulong rv1126_i2c_get_pmuclk(struct rv1126_pmuclk_priv *priv,
+ ulong clk_id)
+{
+ struct rv1126_pmucru *pmucru = priv->pmucru;
+ u32 div, con;
+
+ switch (clk_id) {
+ case CLK_I2C0:
+ con = readl(&pmucru->pmu_clksel_con[2]);
+ div = (con & CLK_I2C0_DIV_MASK) >> CLK_I2C0_DIV_SHIFT;
+ break;
+ case CLK_I2C2:
+ con = readl(&pmucru->pmu_clksel_con[3]);
+ div = (con & CLK_I2C1_DIV_MASK) >> CLK_I2C1_DIV_SHIFT;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong rv1126_i2c_set_pmuclk(struct rv1126_pmuclk_priv *priv,
+ ulong clk_id, ulong rate)
+{
+ struct rv1126_pmucru *pmucru = priv->pmucru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 127);
+
+ switch (clk_id) {
+ case CLK_I2C0:
+ rk_clrsetreg(&pmucru->pmu_clksel_con[2], CLK_I2C0_DIV_MASK,
+ (src_clk_div - 1) << CLK_I2C0_DIV_SHIFT);
+ break;
+ case CLK_I2C2:
+ rk_clrsetreg(&pmucru->pmu_clksel_con[3], CLK_I2C2_DIV_MASK,
+ (src_clk_div - 1) << CLK_I2C2_DIV_SHIFT);
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return rv1126_i2c_get_pmuclk(priv, clk_id);
+}
+
+static ulong rv1126_pwm_get_pmuclk(struct rv1126_pmuclk_priv *priv,
+ ulong clk_id)
+{
+ struct rv1126_pmucru *pmucru = priv->pmucru;
+ u32 div, sel, con;
+
+ 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)
+ return OSC_HZ;
+ break;
+ case CLK_PWM1:
+ con = readl(&pmucru->pmu_clksel_con[6]);
+ sel = (con & CLK_PWM1_SEL_MASK) >> CLK_PWM1_SEL_SHIFT;
+ div = (con & CLK_PWM1_DIV_MASK) >> CLK_PWM1_DIV_SHIFT;
+ if (sel == CLK_PWM1_SEL_XIN24M)
+ return OSC_HZ;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong rv1126_pwm_set_pmuclk(struct rv1126_pmuclk_priv *priv,
+ ulong clk_id, ulong rate)
+{
+ struct rv1126_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_SEL_XIN24M << CLK_PWM0_SEL_SHIFT);
+ rk_clrsetreg(&pmucru->pmu_clksel_con[6],
+ CLK_PWM0_DIV_MASK, 0);
+ } else {
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 127);
+ rk_clrsetreg(&pmucru->pmu_clksel_con[6],
+ CLK_PWM0_DIV_MASK,
+ (src_clk_div - 1) << CLK_PWM0_DIV_SHIFT);
+ rk_clrsetreg(&pmucru->pmu_clksel_con[6],
+ CLK_PWM0_SEL_MASK,
+ CLK_PWM0_SEL_GPLL << CLK_PWM0_SEL_SHIFT);
+ }
+ break;
+ case CLK_PWM1:
+ if (rate == OSC_HZ) {
+ rk_clrsetreg(&pmucru->pmu_clksel_con[6],
+ CLK_PWM1_SEL_MASK,
+ CLK_PWM1_SEL_XIN24M << CLK_PWM1_SEL_SHIFT);
+ rk_clrsetreg(&pmucru->pmu_clksel_con[6],
+ CLK_PWM1_DIV_MASK, 0);
+ } else {
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 127);
+ rk_clrsetreg(&pmucru->pmu_clksel_con[6],
+ CLK_PWM1_DIV_MASK,
+ (src_clk_div - 1) << CLK_PWM1_DIV_SHIFT);
+ rk_clrsetreg(&pmucru->pmu_clksel_con[6],
+ CLK_PWM1_SEL_MASK,
+ CLK_PWM1_SEL_GPLL << CLK_PWM1_SEL_SHIFT);
+ }
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return rv1126_pwm_get_pmuclk(priv, clk_id);
+}
+
+static ulong rv1126_spi_get_pmuclk(struct rv1126_pmuclk_priv *priv)
+{
+ struct rv1126_pmucru *pmucru = priv->pmucru;
+ u32 div, con;
+
+ con = readl(&pmucru->pmu_clksel_con[9]);
+ div = (con & CLK_SPI0_DIV_MASK) >> CLK_SPI0_DIV_SHIFT;
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong rv1126_spi_set_pmuclk(struct rv1126_pmuclk_priv *priv,
+ ulong rate)
+{
+ struct rv1126_pmucru *pmucru = priv->pmucru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 127);
+
+ rk_clrsetreg(&pmucru->pmu_clksel_con[9],
+ CLK_SPI0_SEL_MASK | CLK_SPI0_DIV_MASK,
+ CLK_SPI0_SEL_GPLL << CLK_SPI0_SEL_SHIFT |
+ (src_clk_div - 1) << CLK_SPI0_DIV_SHIFT);
+
+ return rv1126_spi_get_pmuclk(priv);
+}
+
+static ulong rv1126_pdpmu_get_pmuclk(struct rv1126_pmuclk_priv *priv)
+{
+ struct rv1126_pmucru *pmucru = priv->pmucru;
+ u32 div, con;
+
+ con = readl(&pmucru->pmu_clksel_con[1]);
+ div = (con & PCLK_PDPMU_DIV_MASK) >> PCLK_PDPMU_DIV_SHIFT;
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong rv1126_pdpmu_set_pmuclk(struct rv1126_pmuclk_priv *priv,
+ ulong rate)
+{
+ struct rv1126_pmucru *pmucru = priv->pmucru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 31);
+
+ rk_clrsetreg(&pmucru->pmu_clksel_con[1],
+ PCLK_PDPMU_DIV_MASK,
+ (src_clk_div - 1) << PCLK_PDPMU_DIV_SHIFT);
+
+ return rv1126_pdpmu_get_pmuclk(priv);
+}
+
+static ulong rv1126_pmuclk_get_rate(struct clk *clk)
+{
+ struct rv1126_pmuclk_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;
+ }
+
+ debug("%s %ld\n", __func__, clk->id);
+ switch (clk->id) {
+ case PLL_GPLL:
+ rate = rv1126_gpll_get_pmuclk(priv);
+ break;
+ case CLK_RTC32K:
+ rate = rv1126_rtc32k_get_pmuclk(priv);
+ break;
+ case CLK_I2C0:
+ case CLK_I2C2:
+ rate = rv1126_i2c_get_pmuclk(priv, clk->id);
+ break;
+ case CLK_PWM0:
+ case CLK_PWM1:
+ rate = rv1126_pwm_get_pmuclk(priv, clk->id);
+ break;
+ case CLK_SPI0:
+ rate = rv1126_spi_get_pmuclk(priv);
+ break;
+ case PCLK_PDPMU:
+ rate = rv1126_pdpmu_get_pmuclk(priv);
+ break;
+ default:
+ debug("%s: Unsupported CLK#%ld\n", __func__, clk->id);
+ return -ENOENT;
+ }
+
+ return rate;
+}
+
+static ulong rv1126_pmuclk_set_rate(struct clk *clk, ulong rate)
+{
+ struct rv1126_pmuclk_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;
+ }
+
+ debug("%s %ld %ld\n", __func__, clk->id, rate);
+ switch (clk->id) {
+ case PLL_GPLL:
+ ret = rv1126_gpll_set_pmuclk(priv, rate);
+ break;
+ case CLK_RTC32K:
+ ret = rv1126_rtc32k_set_pmuclk(priv, rate);
+ break;
+ case CLK_I2C0:
+ case CLK_I2C2:
+ ret = rv1126_i2c_set_pmuclk(priv, clk->id, rate);
+ break;
+ case CLK_PWM0:
+ case CLK_PWM1:
+ ret = rv1126_pwm_set_pmuclk(priv, clk->id, rate);
+ break;
+ case CLK_SPI0:
+ ret = rv1126_spi_set_pmuclk(priv, rate);
+ break;
+ case PCLK_PDPMU:
+ ret = rv1126_pdpmu_set_pmuclk(priv, rate);
+ break;
+ default:
+ debug("%s: Unsupported CLK#%ld\n", __func__, clk->id);
+ return -ENOENT;
+ }
+
+ return ret;
+}
+
+static int rv1126_rtc32k_set_parent(struct clk *clk, struct clk *parent)
+{
+ struct rv1126_pmuclk_priv *priv = dev_get_priv(clk->dev);
+ struct rv1126_pmucru *pmucru = priv->pmucru;
+
+ if (parent->id == CLK_OSC0_DIV32K)
+ 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 rv1126_pmuclk_set_parent(struct clk *clk, struct clk *parent)
+{
+ switch (clk->id) {
+ case CLK_RTC32K:
+ return rv1126_rtc32k_set_parent(clk, parent);
+ default:
+ debug("%s: Unsupported CLK#%ld\n", __func__, clk->id);
+ return -ENOENT;
+ }
+}
+
+static struct clk_ops rv1126_pmuclk_ops = {
+ .get_rate = rv1126_pmuclk_get_rate,
+ .set_rate = rv1126_pmuclk_set_rate,
+ .set_parent = rv1126_pmuclk_set_parent,
+};
+
+static int rv1126_pmuclk_probe(struct udevice *dev)
+{
+ struct rv1126_pmuclk_priv *priv = dev_get_priv(dev);
+
+ priv->gpll_hz = rv1126_gpll_get_pmuclk(priv);
+
+ return 0;
+}
+
+static int rv1126_pmuclk_of_to_plat(struct udevice *dev)
+{
+ struct rv1126_pmuclk_priv *priv = dev_get_priv(dev);
+
+ priv->pmucru = dev_read_addr_ptr(dev);
+
+ return 0;
+}
+
+static int rv1126_pmuclk_bind(struct udevice *dev)
+{
+#if CONFIG_IS_ENABLED(RESET_ROCKCHIP)
+ int ret;
+
+ ret = offsetof(struct rv1126_pmucru, pmu_softrst_con[0]);
+ ret = rockchip_reset_bind(dev, ret, 2);
+ if (ret)
+ debug("Warning: software reset driver bind faile\n");
+#endif
+ return 0;
+}
+
+static const struct udevice_id rv1126_pmuclk_ids[] = {
+ { .compatible = "rockchip,rv1126-pmucru" },
+ { }
+};
+
+U_BOOT_DRIVER(rockchip_rv1126_pmucru) = {
+ .name = "rockchip_rv1126_pmucru",
+ .id = UCLASS_CLK,
+ .of_match = rv1126_pmuclk_ids,
+ .priv_auto = sizeof(struct rv1126_pmuclk_priv),
+ .of_to_plat = rv1126_pmuclk_of_to_plat,
+ .ops = &rv1126_pmuclk_ops,
+ .bind = rv1126_pmuclk_bind,
+ .probe = rv1126_pmuclk_probe,
+};
+
+static int rv1126_armclk_set_clk(struct rv1126_clk_priv *priv, ulong hz)
+{
+ struct rv1126_cru *cru = priv->cru;
+ const struct rockchip_cpu_rate_table *rate;
+ ulong old_rate;
+
+ rate = rockchip_get_cpu_settings(rv1126_cpu_rates, hz);
+ if (!rate) {
+ printf("%s unsupported rate\n", __func__);
+ return -EINVAL;
+ }
+
+ /*
+ * set up dependent divisors for DBG and ACLK clocks.
+ */
+ old_rate = rockchip_pll_get_rate(&rv1126_pll_clks[APLL],
+ priv->cru, APLL);
+ if (old_rate > hz) {
+ if (rockchip_pll_set_rate(&rv1126_pll_clks[APLL],
+ priv->cru, APLL, hz))
+ return -EINVAL;
+ rk_clrsetreg(&cru->clksel_con[1],
+ CORE_DBG_DIV_MASK | CORE_ACLK_DIV_MASK,
+ rate->pclk_div << CORE_DBG_DIV_SHIFT |
+ rate->aclk_div << CORE_ACLK_DIV_SHIFT);
+ } else if (old_rate < hz) {
+ rk_clrsetreg(&cru->clksel_con[1],
+ CORE_DBG_DIV_MASK | CORE_ACLK_DIV_MASK,
+ rate->pclk_div << CORE_DBG_DIV_SHIFT |
+ rate->aclk_div << CORE_ACLK_DIV_SHIFT);
+ if (rockchip_pll_set_rate(&rv1126_pll_clks[APLL],
+ priv->cru, APLL, hz))
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static ulong rv1126_pdcore_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 con, div;
+
+ con = readl(&cru->clksel_con[0]);
+ div = (con & CORE_HCLK_DIV_MASK) >> CORE_HCLK_DIV_SHIFT;
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong rv1126_pdcore_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 31);
+
+ rk_clrsetreg(&cru->clksel_con[0], CORE_HCLK_DIV_MASK,
+ (src_clk_div - 1) << CORE_HCLK_DIV_SHIFT);
+
+ return rv1126_pdcore_get_clk(priv);
+}
+
+static ulong rv1126_pdbus_get_clk(struct rv1126_clk_priv *priv, ulong clk_id)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 con, div, sel, parent;
+
+ switch (clk_id) {
+ case ACLK_PDBUS:
+ con = readl(&cru->clksel_con[2]);
+ div = (con & ACLK_PDBUS_DIV_MASK) >> ACLK_PDBUS_DIV_SHIFT;
+ sel = (con & ACLK_PDBUS_SEL_MASK) >> ACLK_PDBUS_SEL_SHIFT;
+ if (sel == ACLK_PDBUS_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == ACLK_PDBUS_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+ break;
+ case HCLK_PDBUS:
+ con = readl(&cru->clksel_con[2]);
+ div = (con & HCLK_PDBUS_DIV_MASK) >> HCLK_PDBUS_DIV_SHIFT;
+ sel = (con & HCLK_PDBUS_SEL_MASK) >> HCLK_PDBUS_SEL_SHIFT;
+ if (sel == HCLK_PDBUS_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == HCLK_PDBUS_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+ break;
+ case PCLK_PDBUS:
+ case PCLK_WDT:
+ con = readl(&cru->clksel_con[3]);
+ div = (con & PCLK_PDBUS_DIV_MASK) >> PCLK_PDBUS_DIV_SHIFT;
+ sel = (con & PCLK_PDBUS_SEL_MASK) >> PCLK_PDBUS_SEL_SHIFT;
+ if (sel == PCLK_PDBUS_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == PCLK_PDBUS_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_pdbus_set_clk(struct rv1126_clk_priv *priv, ulong clk_id,
+ ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div, clk_sel;
+
+ switch (clk_id) {
+ case ACLK_PDBUS:
+ if (CPLL_HZ % rate) {
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ clk_sel = ACLK_PDBUS_SEL_GPLL;
+ } else {
+ src_clk_div = DIV_ROUND_UP(priv->cpll_hz, rate);
+ clk_sel = ACLK_PDBUS_SEL_CPLL;
+ }
+ assert(src_clk_div - 1 <= 31);
+ rk_clrsetreg(&cru->clksel_con[2],
+ ACLK_PDBUS_SEL_MASK | ACLK_PDBUS_DIV_MASK,
+ clk_sel << ACLK_PDBUS_SEL_SHIFT |
+ (src_clk_div - 1) << ACLK_PDBUS_DIV_SHIFT);
+ break;
+ case HCLK_PDBUS:
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 31);
+ rk_clrsetreg(&cru->clksel_con[2],
+ HCLK_PDBUS_SEL_MASK | HCLK_PDBUS_DIV_MASK,
+ HCLK_PDBUS_SEL_GPLL << HCLK_PDBUS_SEL_SHIFT |
+ (src_clk_div - 1) << HCLK_PDBUS_DIV_SHIFT);
+ break;
+ case PCLK_PDBUS:
+ case PCLK_WDT:
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 31);
+ rk_clrsetreg(&cru->clksel_con[3],
+ PCLK_PDBUS_SEL_MASK | PCLK_PDBUS_DIV_MASK,
+ PCLK_PDBUS_SEL_GPLL << PCLK_PDBUS_SEL_SHIFT |
+ (src_clk_div - 1) << PCLK_PDBUS_DIV_SHIFT);
+ break;
+
+ default:
+ printf("do not support this pdbus freq\n");
+ return -EINVAL;
+ }
+
+ return rv1126_pdbus_get_clk(priv, clk_id);
+}
+
+static ulong rv1126_pdphp_get_clk(struct rv1126_clk_priv *priv, ulong clk_id)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 con, div, parent;
+
+ switch (clk_id) {
+ case ACLK_PDPHP:
+ con = readl(&cru->clksel_con[53]);
+ div = (con & ACLK_PDPHP_DIV_MASK) >> ACLK_PDPHP_DIV_SHIFT;
+ parent = priv->gpll_hz;
+ break;
+ case HCLK_PDPHP:
+ con = readl(&cru->clksel_con[53]);
+ div = (con & HCLK_PDPHP_DIV_MASK) >> HCLK_PDPHP_DIV_SHIFT;
+ parent = priv->gpll_hz;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_pdphp_set_clk(struct rv1126_clk_priv *priv, ulong clk_id,
+ ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 31);
+
+ switch (clk_id) {
+ case ACLK_PDPHP:
+ rk_clrsetreg(&cru->clksel_con[53],
+ ACLK_PDPHP_SEL_MASK | ACLK_PDPHP_DIV_MASK,
+ ACLK_PDPHP_SEL_GPLL << ACLK_PDPHP_SEL_SHIFT |
+ (src_clk_div - 1) << ACLK_PDPHP_DIV_SHIFT);
+ break;
+ case HCLK_PDPHP:
+ rk_clrsetreg(&cru->clksel_con[53],
+ HCLK_PDPHP_DIV_MASK,
+ (src_clk_div - 1) << HCLK_PDPHP_DIV_SHIFT);
+ break;
+ default:
+ printf("do not support this pdphp freq\n");
+ return -EINVAL;
+ }
+
+ return rv1126_pdphp_get_clk(priv, clk_id);
+}
+
+static ulong rv1126_pdaudio_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 con, div;
+
+ con = readl(&cru->clksel_con[26]);
+ div = (con & HCLK_PDAUDIO_DIV_MASK) >> HCLK_PDAUDIO_DIV_SHIFT;
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong rv1126_pdaudio_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 31);
+
+ rk_clrsetreg(&cru->clksel_con[26], HCLK_PDAUDIO_DIV_MASK,
+ (src_clk_div - 1) << HCLK_PDAUDIO_DIV_SHIFT);
+
+ return rv1126_pdaudio_get_clk(priv);
+}
+
+static ulong rv1126_i2c_get_clk(struct rv1126_clk_priv *priv, ulong clk_id)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, con;
+
+ switch (clk_id) {
+ case CLK_I2C1:
+ con = readl(&cru->clksel_con[5]);
+ div = (con & CLK_I2C1_DIV_MASK) >> CLK_I2C1_DIV_SHIFT;
+ break;
+ case CLK_I2C3:
+ con = readl(&cru->clksel_con[5]);
+ div = (con & CLK_I2C3_DIV_MASK) >> CLK_I2C3_DIV_SHIFT;
+ break;
+ case CLK_I2C4:
+ con = readl(&cru->clksel_con[6]);
+ div = (con & CLK_I2C4_DIV_MASK) >> CLK_I2C4_DIV_SHIFT;
+ break;
+ case CLK_I2C5:
+ con = readl(&cru->clksel_con[6]);
+ div = (con & CLK_I2C5_DIV_MASK) >> CLK_I2C5_DIV_SHIFT;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong rv1126_i2c_set_clk(struct rv1126_clk_priv *priv, ulong clk_id,
+ ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 127);
+
+ switch (clk_id) {
+ case CLK_I2C1:
+ rk_clrsetreg(&cru->clksel_con[5], CLK_I2C1_DIV_MASK,
+ (src_clk_div - 1) << CLK_I2C1_DIV_SHIFT);
+ break;
+ case CLK_I2C3:
+ rk_clrsetreg(&cru->clksel_con[5], CLK_I2C3_DIV_MASK,
+ (src_clk_div - 1) << CLK_I2C3_DIV_SHIFT);
+ break;
+ case CLK_I2C4:
+ rk_clrsetreg(&cru->clksel_con[6], CLK_I2C4_DIV_MASK,
+ (src_clk_div - 1) << CLK_I2C4_DIV_SHIFT);
+ break;
+ case CLK_I2C5:
+ rk_clrsetreg(&cru->clksel_con[6], CLK_I2C5_DIV_MASK,
+ (src_clk_div - 1) << CLK_I2C5_DIV_SHIFT);
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return rv1126_i2c_get_clk(priv, clk_id);
+}
+
+static ulong rv1126_spi_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, con;
+
+ con = readl(&cru->clksel_con[8]);
+ div = (con & CLK_SPI1_DIV_MASK) >> CLK_SPI1_DIV_SHIFT;
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong rv1126_spi_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 127);
+
+ rk_clrsetreg(&cru->clksel_con[8],
+ CLK_SPI1_SEL_MASK | CLK_SPI1_DIV_MASK,
+ CLK_SPI1_SEL_GPLL << CLK_SPI1_SEL_SHIFT |
+ (src_clk_div - 1) << CLK_SPI1_DIV_SHIFT);
+
+ return rv1126_spi_get_clk(priv);
+}
+
+static ulong rv1126_pwm_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con;
+
+ con = readl(&cru->clksel_con[9]);
+ sel = (con & CLK_PWM2_SEL_MASK) >> CLK_PWM2_SEL_SHIFT;
+ div = (con & CLK_PWM2_DIV_MASK) >> CLK_PWM2_DIV_SHIFT;
+ if (sel == CLK_PWM2_SEL_XIN24M)
+ return OSC_HZ;
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong rv1126_pwm_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ if (rate == OSC_HZ) {
+ rk_clrsetreg(&cru->clksel_con[9], CLK_PWM2_SEL_MASK,
+ CLK_PWM2_SEL_XIN24M << CLK_PWM2_SEL_SHIFT);
+ rk_clrsetreg(&cru->clksel_con[9], CLK_PWM2_DIV_MASK, 0);
+ } else {
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 127);
+ rk_clrsetreg(&cru->clksel_con[9], CLK_PWM2_DIV_MASK,
+ (src_clk_div - 1) << CLK_PWM2_DIV_SHIFT);
+ rk_clrsetreg(&cru->clksel_con[9], CLK_PWM2_SEL_MASK,
+ CLK_PWM2_SEL_GPLL << CLK_PWM2_SEL_SHIFT);
+ }
+
+ return rv1126_pwm_get_clk(priv);
+}
+
+static ulong rv1126_saradc_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, con;
+
+ con = readl(&cru->clksel_con[20]);
+ div = (con & CLK_SARADC_DIV_MASK) >> CLK_SARADC_DIV_SHIFT;
+
+ return DIV_TO_RATE(OSC_HZ, div);
+}
+
+static ulong rv1126_saradc_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(OSC_HZ, rate);
+ assert(src_clk_div - 1 <= 2047);
+ rk_clrsetreg(&cru->clksel_con[20], CLK_SARADC_DIV_MASK,
+ (src_clk_div - 1) << CLK_SARADC_DIV_SHIFT);
+
+ return rv1126_saradc_get_clk(priv);
+}
+
+static ulong rv1126_crypto_get_clk(struct rv1126_clk_priv *priv, ulong clk_id)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con, parent;
+
+ switch (clk_id) {
+ case CLK_CRYPTO_CORE:
+ con = readl(&cru->clksel_con[7]);
+ div = (con & CLK_CRYPTO_CORE_DIV_MASK) >>
CLK_CRYPTO_CORE_DIV_SHIFT;
+ sel = (con & CLK_CRYPTO_CORE_SEL_MASK) >>
CLK_CRYPTO_CORE_SEL_SHIFT;
+ if (sel == CLK_CRYPTO_CORE_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == CLK_CRYPTO_CORE_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+ break;
+ case CLK_CRYPTO_PKA:
+ con = readl(&cru->clksel_con[7]);
+ div = (con & CLK_CRYPTO_PKA_DIV_MASK) >>
CLK_CRYPTO_PKA_DIV_SHIFT;
+ sel = (con & CLK_CRYPTO_PKA_SEL_MASK) >>
CLK_CRYPTO_PKA_SEL_SHIFT;
+ if (sel == CLK_CRYPTO_PKA_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == CLK_CRYPTO_PKA_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+ break;
+ case ACLK_CRYPTO:
+ con = readl(&cru->clksel_con[4]);
+ div = (con & ACLK_CRYPTO_DIV_MASK) >> ACLK_CRYPTO_DIV_SHIFT;
+ sel = (con & ACLK_CRYPTO_SEL_MASK) >> ACLK_CRYPTO_SEL_SHIFT;
+ if (sel == ACLK_CRYPTO_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == ACLK_CRYPTO_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_crypto_set_clk(struct rv1126_clk_priv *priv, ulong clk_id,
+ ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 31);
+
+ switch (clk_id) {
+ case CLK_CRYPTO_CORE:
+ rk_clrsetreg(&cru->clksel_con[7],
+ CLK_CRYPTO_CORE_SEL_MASK |
+ CLK_CRYPTO_CORE_DIV_MASK,
+ CLK_CRYPTO_CORE_SEL_GPLL <<
+ CLK_CRYPTO_CORE_SEL_SHIFT |
+ (src_clk_div - 1) << CLK_CRYPTO_CORE_DIV_SHIFT);
+ break;
+ case CLK_CRYPTO_PKA:
+ rk_clrsetreg(&cru->clksel_con[7],
+ CLK_CRYPTO_PKA_SEL_MASK |
+ CLK_CRYPTO_PKA_DIV_MASK,
+ CLK_CRYPTO_PKA_SEL_GPLL <<
+ CLK_CRYPTO_PKA_SEL_SHIFT |
+ (src_clk_div - 1) << CLK_CRYPTO_PKA_DIV_SHIFT);
+ break;
+ case ACLK_CRYPTO:
+ rk_clrsetreg(&cru->clksel_con[4],
+ ACLK_CRYPTO_SEL_MASK | ACLK_CRYPTO_DIV_MASK,
+ ACLK_CRYPTO_SEL_GPLL << ACLK_CRYPTO_SEL_SHIFT |
+ (src_clk_div - 1) << ACLK_CRYPTO_DIV_SHIFT);
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return rv1126_crypto_get_clk(priv, clk_id);
+}
+
+static ulong rv1126_mmc_get_clk(struct rv1126_clk_priv *priv, ulong clk_id)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con, con_id;
+
+ switch (clk_id) {
+ case HCLK_SDMMC:
+ case CLK_SDMMC:
+ con_id = 55;
+ break;
+ case HCLK_SDIO:
+ case CLK_SDIO:
+ con_id = 56;
+ break;
+ case HCLK_EMMC:
+ case CLK_EMMC:
+ case SCLK_EMMC_SAMPLE:
+ con_id = 57;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ con = readl(&cru->clksel_con[con_id]);
+ div = (con & EMMC_DIV_MASK) >> EMMC_DIV_SHIFT;
+ sel = (con & EMMC_SEL_MASK) >> EMMC_SEL_SHIFT;
+ if (sel == EMMC_SEL_GPLL)
+ return DIV_TO_RATE(priv->gpll_hz, div) / 2;
+ else if (sel == EMMC_SEL_CPLL)
+ return DIV_TO_RATE(priv->cpll_hz, div) / 2;
+ else if (sel == EMMC_SEL_XIN24M)
+ return DIV_TO_RATE(OSC_HZ, div) / 2;
+
+ return -ENOENT;
+}
+
+static ulong rv1126_mmc_set_clk(struct rv1126_clk_priv *priv, ulong clk_id,
+ ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+ u32 con_id;
+
+ switch (clk_id) {
+ case HCLK_SDMMC:
+ case CLK_SDMMC:
+ con_id = 55;
+ break;
+ case HCLK_SDIO:
+ case CLK_SDIO:
+ con_id = 56;
+ break;
+ case HCLK_EMMC:
+ case CLK_EMMC:
+ con_id = 57;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ /* Select clk_sdmmc/emmc source from GPLL by default */
+ /* mmc clock defaulg div 2 internal, need provide double in cru */
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz / 2, rate);
+
+ if (src_clk_div > 127) {
+ /* use 24MHz source for 400KHz clock */
+ src_clk_div = DIV_ROUND_UP(OSC_HZ / 2, rate);
+ rk_clrsetreg(&cru->clksel_con[con_id],
+ EMMC_SEL_MASK | EMMC_DIV_MASK,
+ EMMC_SEL_XIN24M << EMMC_SEL_SHIFT |
+ (src_clk_div - 1) << EMMC_DIV_SHIFT);
+ } else {
+ rk_clrsetreg(&cru->clksel_con[con_id],
+ EMMC_SEL_MASK | EMMC_DIV_MASK,
+ EMMC_SEL_GPLL << EMMC_SEL_SHIFT |
+ (src_clk_div - 1) << EMMC_DIV_SHIFT);
+ }
+
+ return rv1126_mmc_get_clk(priv, clk_id);
+}
+
+static ulong rv1126_sfc_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con, parent;
+
+ con = readl(&cru->clksel_con[58]);
+ div = (con & SCLK_SFC_DIV_MASK) >> SCLK_SFC_DIV_SHIFT;
+ sel = (con & SCLK_SFC_SEL_MASK) >> SCLK_SFC_SEL_SHIFT;
+ if (sel == SCLK_SFC_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == SCLK_SFC_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_sfc_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ rk_clrsetreg(&cru->clksel_con[58],
+ SCLK_SFC_SEL_MASK | SCLK_SFC_DIV_MASK,
+ SCLK_SFC_SEL_GPLL << SCLK_SFC_SEL_SHIFT |
+ (src_clk_div - 1) << SCLK_SFC_DIV_SHIFT);
+
+ return rv1126_sfc_get_clk(priv);
+}
+
+static ulong rv1126_nand_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con, parent;
+
+ con = readl(&cru->clksel_con[59]);
+ div = (con & CLK_NANDC_DIV_MASK) >> CLK_NANDC_DIV_SHIFT;
+ sel = (con & CLK_NANDC_SEL_MASK) >> CLK_NANDC_SEL_SHIFT;
+ if (sel == CLK_NANDC_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == CLK_NANDC_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_nand_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ rk_clrsetreg(&cru->clksel_con[59],
+ CLK_NANDC_SEL_MASK | CLK_NANDC_DIV_MASK,
+ CLK_NANDC_SEL_GPLL << CLK_NANDC_SEL_SHIFT |
+ (src_clk_div - 1) << CLK_NANDC_DIV_SHIFT);
+
+ return rv1126_nand_get_clk(priv);
+}
+
+static ulong rv1126_aclk_vop_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con, parent;
+
+ con = readl(&cru->clksel_con[45]);
+ div = (con & ACLK_PDVO_DIV_MASK) >> ACLK_PDVO_DIV_SHIFT;
+ sel = (con & ACLK_PDVO_SEL_MASK) >> ACLK_PDVO_SEL_SHIFT;
+ if (sel == ACLK_PDVO_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == ACLK_PDVO_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_aclk_vop_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 31);
+ rk_clrsetreg(&cru->clksel_con[45],
+ ACLK_PDVO_SEL_MASK | ACLK_PDVO_DIV_MASK,
+ ACLK_PDVO_SEL_GPLL << ACLK_PDVO_SEL_SHIFT |
+ (src_clk_div - 1) << ACLK_PDVO_DIV_SHIFT);
+
+ return rv1126_aclk_vop_get_clk(priv);
+}
+
+static ulong rv1126_dclk_vop_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con, parent;
+
+ con = readl(&cru->clksel_con[47]);
+ div = (con & DCLK_VOP_DIV_MASK) >> DCLK_VOP_DIV_SHIFT;
+ sel = (con & DCLK_VOP_SEL_MASK) >> DCLK_VOP_SEL_SHIFT;
+ 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);
+}
+
+static ulong rv1126_dclk_vop_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ ulong pll_rate, now, best_rate = 0;
+ u32 i, div, best_div = 0, best_sel = 0;
+
+ 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("pll_rate=%lu, best_rate=%lu, best_div=%u, best_sel=%u\n",
+ pll_rate, best_rate, best_div, best_sel);
+ }
+
+ if (best_rate) {
+ rk_clrsetreg(&cru->clksel_con[47],
+ DCLK_VOP_SEL_MASK | DCLK_VOP_DIV_MASK,
+ best_sel << DCLK_VOP_SEL_SHIFT |
+ (best_div - 1) << DCLK_VOP_DIV_SHIFT);
+ } else {
+ printf("do not support this vop freq %lu\n", rate);
+ return -EINVAL;
+ }
+
+ return rv1126_dclk_vop_get_clk(priv);
+}
+
+static ulong rv1126_scr1_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con, parent;
+
+ con = readl(&cru->clksel_con[3]);
+ div = (con & CLK_SCR1_DIV_MASK) >> CLK_SCR1_DIV_SHIFT;
+ sel = (con & CLK_SCR1_SEL_MASK) >> CLK_SCR1_SEL_SHIFT;
+ if (sel == CLK_SCR1_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == CLK_SCR1_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_scr1_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 31);
+ rk_clrsetreg(&cru->clksel_con[3],
+ CLK_SCR1_SEL_MASK | CLK_SCR1_DIV_MASK,
+ CLK_SCR1_SEL_GPLL << CLK_SCR1_SEL_SHIFT |
+ (src_clk_div - 1) << CLK_SCR1_DIV_SHIFT);
+
+ return rv1126_scr1_get_clk(priv);
+}
+
+static ulong rv1126_gmac_src_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con, parent;
+
+ con = readl(&cru->clksel_con[63]);
+ div = (con & CLK_GMAC_SRC_DIV_MASK) >> CLK_GMAC_SRC_DIV_SHIFT;
+ sel = (con & CLK_GMAC_SRC_SEL_MASK) >> CLK_GMAC_SRC_SEL_SHIFT;
+ if (sel == CLK_GMAC_SRC_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else if (sel == CLK_GMAC_SRC_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else
+ return -ENOENT;
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_gmac_src_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_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[63],
+ CLK_GMAC_SRC_SEL_MASK | CLK_GMAC_SRC_DIV_MASK,
+ CLK_GMAC_SRC_SEL_CPLL << CLK_GMAC_SRC_SEL_SHIFT |
+ (src_clk_div - 1) << CLK_GMAC_SRC_DIV_SHIFT);
+
+ return rv1126_gmac_src_get_clk(priv);
+}
+
+static ulong rv1126_gmac_out_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con, parent;
+
+ con = readl(&cru->clksel_con[61]);
+ div = (con & CLK_GMAC_OUT_DIV_MASK) >> CLK_GMAC_OUT_DIV_SHIFT;
+ sel = (con & CLK_GMAC_OUT_SEL_MASK) >> CLK_GMAC_OUT_SEL_SHIFT;
+ if (sel == CLK_GMAC_OUT_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else if (sel == CLK_GMAC_OUT_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else
+ return -ENOENT;
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_gmac_out_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct rv1126_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[61],
+ CLK_GMAC_OUT_SEL_MASK | CLK_GMAC_OUT_DIV_MASK,
+ CLK_GMAC_OUT_SEL_CPLL << CLK_GMAC_OUT_SEL_SHIFT |
+ (src_clk_div - 1) << CLK_GMAC_OUT_DIV_SHIFT);
+
+ return rv1126_gmac_out_get_clk(priv);
+}
+
+static ulong rv1126_gmac_tx_rx_set_clk(struct rv1126_clk_priv *priv, ulong
rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 con, sel, div_sel;
+
+ con = readl(&cru->gmac_con);
+ sel = (con & GMAC_MODE_SEL_MASK) >> GMAC_MODE_SEL_SHIFT;
+
+ if (sel == GMAC_RGMII_MODE) {
+ if (rate == 2500000)
+ div_sel = RGMII_CLK_DIV50;
+ else if (rate == 25000000)
+ div_sel = RGMII_CLK_DIV5;
+ else
+ div_sel = RGMII_CLK_DIV0;
+ rk_clrsetreg(&cru->gmac_con, RGMII_CLK_SEL_MASK,
+ div_sel << RGMII_CLK_SEL_SHIFT);
+ } else if (sel == GMAC_RMII_MODE) {
+ if (rate == 2500000)
+ div_sel = RMII_CLK_DIV20;
+ else
+ div_sel = RMII_CLK_DIV2;
+ rk_clrsetreg(&cru->gmac_con, RMII_CLK_SEL_MASK,
+ div_sel << RMII_CLK_SEL_SHIFT);
+ }
+
+ return 0;
+}
+
+static ulong rv1126_pclk_gmac_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, con, parent;
+
+ parent = rv1126_pdphp_get_clk(priv, ACLK_PDPHP);
+
+ con = readl(&cru->clksel_con[63]);
+ div = (con & PCLK_GMAC_DIV_MASK) >> PCLK_GMAC_DIV_SHIFT;
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_dclk_decom_get_clk(struct rv1126_clk_priv *priv)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 div, sel, con, parent;
+
+ con = readl(&cru->clksel_con[25]);
+ div = (con & DCLK_DECOM_DIV_MASK) >> DCLK_DECOM_DIV_SHIFT;
+ sel = (con & DCLK_DECOM_SEL_MASK) >> DCLK_DECOM_SEL_SHIFT;
+ if (sel == DCLK_DECOM_SEL_GPLL)
+ parent = priv->gpll_hz;
+ else if (sel == DCLK_DECOM_SEL_CPLL)
+ parent = priv->cpll_hz;
+ else
+ return -ENOENT;
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong rv1126_dclk_decom_set_clk(struct rv1126_clk_priv *priv, ulong
rate)
+{
+ struct rv1126_cru *cru = priv->cru;
+ u32 src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, rate);
+ assert(src_clk_div - 1 <= 127);
+ rk_clrsetreg(&cru->clksel_con[25],
+ DCLK_DECOM_SEL_MASK | DCLK_DECOM_DIV_MASK,
+ DCLK_DECOM_SEL_GPLL << DCLK_DECOM_SEL_SHIFT |
+ (src_clk_div - 1) << DCLK_DECOM_DIV_SHIFT);
+
+ return rv1126_dclk_decom_get_clk(priv);
+}
+
+static ulong rv1126_clk_get_rate(struct clk *clk)
+{
+ struct rv1126_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(&rv1126_pll_clks[APLL], priv->cru,
+ APLL);
+ break;
+ case PLL_CPLL:
+ rate = rockchip_pll_get_rate(&rv1126_pll_clks[CPLL], priv->cru,
+ CPLL);
+ break;
+ case PLL_HPLL:
+ rate = rockchip_pll_get_rate(&rv1126_pll_clks[HPLL], priv->cru,
+ HPLL);
+ break;
+ case PLL_DPLL:
+ rate = rockchip_pll_get_rate(&rv1126_pll_clks[DPLL], priv->cru,
+ DPLL);
+ break;
+ case HCLK_PDCORE_NIU:
+ rate = rv1126_pdcore_get_clk(priv);
+ break;
+ case ACLK_PDBUS:
+ case HCLK_PDBUS:
+ case PCLK_PDBUS:
+ case PCLK_WDT:
+ rate = rv1126_pdbus_get_clk(priv, clk->id);
+ break;
+ case ACLK_PDPHP:
+ case HCLK_PDPHP:
+ rate = rv1126_pdphp_get_clk(priv, clk->id);
+ break;
+ case HCLK_PDAUDIO:
+ rate = rv1126_pdaudio_get_clk(priv);
+ break;
+ case CLK_I2C1:
+ case CLK_I2C3:
+ case CLK_I2C4:
+ case CLK_I2C5:
+ rate = rv1126_i2c_get_clk(priv, clk->id);
+ break;
+ case CLK_SPI1:
+ rate = rv1126_spi_get_clk(priv);
+ break;
+ case CLK_PWM2:
+ rate = rv1126_pwm_get_clk(priv);
+ break;
+ case CLK_SARADC:
+ rate = rv1126_saradc_get_clk(priv);
+ break;
+ case CLK_CRYPTO_CORE:
+ case CLK_CRYPTO_PKA:
+ case ACLK_CRYPTO:
+ rate = rv1126_crypto_get_clk(priv, clk->id);
+ break;
+ case CLK_SDMMC:
+ case HCLK_SDMMC:
+ case CLK_SDIO:
+ case HCLK_SDIO:
+ case CLK_EMMC:
+ case HCLK_EMMC:
+ case SCLK_EMMC_SAMPLE:
+ rate = rv1126_mmc_get_clk(priv, clk->id);
+ break;
+ case SCLK_SFC:
+ rate = rv1126_sfc_get_clk(priv);
+ break;
+ case CLK_NANDC:
+ rate = rv1126_nand_get_clk(priv);
+ break;
+ case ACLK_PDVO:
+ case ACLK_VOP:
+ rate = rv1126_aclk_vop_get_clk(priv);
+ break;
+ case DCLK_VOP:
+ rate = rv1126_dclk_vop_get_clk(priv);
+ break;
+ case CLK_SCR1_CORE:
+ rate = rv1126_scr1_get_clk(priv);
+ break;
+ case CLK_GMAC_SRC:
+ rate = rv1126_gmac_src_get_clk(priv);
+ break;
+ case CLK_GMAC_ETHERNET_OUT:
+ rate = rv1126_gmac_out_get_clk(priv);
+ break;
+ case PCLK_GMAC:
+ rate = rv1126_pclk_gmac_get_clk(priv);
+ break;
+ case DCLK_DECOM:
+ rate = rv1126_dclk_decom_get_clk(priv);
+ break;
+ default:
+ debug("%s: Unsupported CLK#%ld\n", __func__, clk->id);
+ return -ENOENT;
+ }
+
+ return rate;
+};
+
+static ulong rv1126_clk_set_rate(struct clk *clk, ulong rate)
+{
+ struct rv1126_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)
+ rv1126_armclk_set_clk(priv, rate);
+ priv->armclk_hz = rate;
+ break;
+ case PLL_CPLL:
+ ret = rockchip_pll_set_rate(&rv1126_pll_clks[CPLL], priv->cru,
+ CPLL, rate);
+ break;
+ case PLL_HPLL:
+ ret = rockchip_pll_set_rate(&rv1126_pll_clks[HPLL], priv->cru,
+ HPLL, rate);
+ break;
+ case ACLK_PDBUS:
+ case HCLK_PDBUS:
+ case PCLK_PDBUS:
+ case PCLK_WDT:
+ ret = rv1126_pdbus_set_clk(priv, clk->id, rate);
+ break;
+ case ACLK_PDPHP:
+ case HCLK_PDPHP:
+ ret = rv1126_pdphp_set_clk(priv, clk->id, rate);
+ break;
+ case HCLK_PDCORE_NIU:
+ ret = rv1126_pdcore_set_clk(priv, rate);
+ break;
+ case HCLK_PDAUDIO:
+ ret = rv1126_pdaudio_set_clk(priv, rate);
+ break;
+ case CLK_I2C1:
+ case CLK_I2C3:
+ case CLK_I2C4:
+ case CLK_I2C5:
+ ret = rv1126_i2c_set_clk(priv, clk->id, rate);
+ break;
+ case CLK_SPI1:
+ ret = rv1126_spi_set_clk(priv, rate);
+ break;
+ case CLK_PWM2:
+ ret = rv1126_pwm_set_clk(priv, rate);
+ break;
+ case CLK_SARADC:
+ ret = rv1126_saradc_set_clk(priv, rate);
+ break;
+ case CLK_CRYPTO_CORE:
+ case CLK_CRYPTO_PKA:
+ case ACLK_CRYPTO:
+ ret = rv1126_crypto_set_clk(priv, clk->id, rate);
+ break;
+ case CLK_SDMMC:
+ case HCLK_SDMMC:
+ case CLK_SDIO:
+ case HCLK_SDIO:
+ case CLK_EMMC:
+ case HCLK_EMMC:
+ ret = rv1126_mmc_set_clk(priv, clk->id, rate);
+ break;
+ case SCLK_SFC:
+ ret = rv1126_sfc_set_clk(priv, rate);
+ break;
+ case CLK_NANDC:
+ ret = rv1126_nand_set_clk(priv, rate);
+ break;
+ case ACLK_PDVO:
+ case ACLK_VOP:
+ ret = rv1126_aclk_vop_set_clk(priv, rate);
+ break;
+ case DCLK_VOP:
+ ret = rv1126_dclk_vop_set_clk(priv, rate);
+ break;
+ case CLK_SCR1_CORE:
+ ret = rv1126_scr1_set_clk(priv, rate);
+ break;
+ case CLK_GMAC_SRC:
+ ret = rv1126_gmac_src_set_clk(priv, rate);
+ break;
+ case CLK_GMAC_ETHERNET_OUT:
+ ret = rv1126_gmac_out_set_clk(priv, rate);
+ break;
+ case CLK_GMAC_TX_RX:
+ ret = rv1126_gmac_tx_rx_set_clk(priv, rate);
+ break;
+ case DCLK_DECOM:
+ ret = rv1126_dclk_decom_set_clk(priv, rate);
+ break;
+ default:
+ debug("%s: Unsupported CLK#%ld\n", __func__, clk->id);
+ return -ENOENT;
+ }
+
+ return ret;
+};
+
+#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
+static int rv1126_gmac_src_set_parent(struct clk *clk, struct clk *parent)
+{
+ struct rv1126_clk_priv *priv = dev_get_priv(clk->dev);
+ struct rv1126_grf *grf = priv->grf;
+
+ if (parent->id == CLK_GMAC_SRC_M0)
+ rk_clrsetreg(&grf->iofunc_con1, GMAC_SRC_SEL_MASK,
+ GMAC_SRC_SEL_M0 << GMAC_SRC_SEL_SHIFT);
+ else if (parent->id == CLK_GMAC_SRC_M1)
+ rk_clrsetreg(&grf->iofunc_con1, GMAC_SRC_SEL_MASK,
+ GMAC_SRC_SEL_M1 << GMAC_SRC_SEL_SHIFT);
+
+ return 0;
+}
+
+static int rv1126_gmac_src_m0_set_parent(struct clk *clk, struct clk *parent)
+{
+ struct rv1126_clk_priv *priv = dev_get_priv(clk->dev);
+ struct rv1126_cru *cru = priv->cru;
+
+ if (parent->id == CLK_GMAC_DIV)
+ rk_clrsetreg(&cru->gmac_con, GMAC_SRC_M0_SEL_MASK,
+ GMAC_SRC_M0_SEL_INT << GMAC_SRC_M0_SEL_SHIFT);
+ else
+ rk_clrsetreg(&cru->gmac_con, GMAC_SRC_M0_SEL_MASK,
+ GMAC_SRC_M0_SEL_EXT << GMAC_SRC_M0_SEL_SHIFT);
+
+ return 0;
+}
+
+static int rv1126_gmac_src_m1_set_parent(struct clk *clk, struct clk *parent)
+{
+ struct rv1126_clk_priv *priv = dev_get_priv(clk->dev);
+ struct rv1126_cru *cru = priv->cru;
+
+ if (parent->id == CLK_GMAC_DIV)
+ rk_clrsetreg(&cru->gmac_con, GMAC_SRC_M1_SEL_MASK,
+ GMAC_SRC_M1_SEL_INT << GMAC_SRC_M1_SEL_SHIFT);
+ else
+ rk_clrsetreg(&cru->gmac_con, GMAC_SRC_M1_SEL_MASK,
+ GMAC_SRC_M1_SEL_EXT << GMAC_SRC_M1_SEL_SHIFT);
+
+ return 0;
+}
+
+static int rv1126_gmac_tx_rx_set_parent(struct clk *clk, struct clk *parent)
+{
+ struct rv1126_clk_priv *priv = dev_get_priv(clk->dev);
+ struct rv1126_cru *cru = priv->cru;
+
+ if (parent->id == RGMII_MODE_CLK)
+ rk_clrsetreg(&cru->gmac_con, GMAC_MODE_SEL_MASK,
+ GMAC_RGMII_MODE << GMAC_MODE_SEL_SHIFT);
+ else
+ rk_clrsetreg(&cru->gmac_con, GMAC_MODE_SEL_MASK,
+ GMAC_RMII_MODE << GMAC_MODE_SEL_SHIFT);
+
+ return 0;
+}
+
+static int rv1126_clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ switch (clk->id) {
+ case CLK_GMAC_SRC:
+ return rv1126_gmac_src_set_parent(clk, parent);
+ case CLK_GMAC_SRC_M0:
+ return rv1126_gmac_src_m0_set_parent(clk, parent);
+ case CLK_GMAC_SRC_M1:
+ return rv1126_gmac_src_m1_set_parent(clk, parent);
+ case CLK_GMAC_TX_RX:
+ return rv1126_gmac_tx_rx_set_parent(clk, parent);
+ default:
+ return -ENOENT;
+ }
+
+ return 0;
+}
+#endif
+
+static struct clk_ops rv1126_clk_ops = {
+ .get_rate = rv1126_clk_get_rate,
+ .set_rate = rv1126_clk_set_rate,
+#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
+ .set_parent = rv1126_clk_set_parent,
+#endif
+};
+
+static ulong rv1126_gpll_set_rate(struct rv1126_clk_priv *priv,
+ struct rv1126_pmuclk_priv *pmu_priv,
+ ulong rate)
+{
+ ulong emmc_rate, sfc_rate, nandc_rate;
+ bool restore = false;
+
+ if (priv->gpll_hz != OSC_HZ) {
+ emmc_rate = rv1126_mmc_get_clk(priv, CLK_EMMC);
+ sfc_rate = rv1126_sfc_get_clk(priv);
+ nandc_rate = rv1126_nand_get_clk(priv);
+ debug("%s emmc=%lu, sfc=%lu, nandc=%lu\n", __func__,
+ emmc_rate, sfc_rate, nandc_rate);
+ restore = true;
+ }
+
+ /*
+ * the child div is big enough for gpll 1188MHz,
+ * even maskrom has change some clocks.
+ */
+ if (rockchip_pll_set_rate(&rv1126_pll_clks[GPLL],
+ pmu_priv->pmucru, GPLL, rate))
+ return -EINVAL;
+ pmu_priv->gpll_hz = rate;
+ priv->gpll_hz = rate;
+
+ if (restore) {
+ rv1126_mmc_set_clk(priv, CLK_EMMC, emmc_rate);
+ rv1126_sfc_set_clk(priv, sfc_rate);
+ rv1126_nand_set_clk(priv, nandc_rate);
+ }
+
+ return 0;
+}
+
+static int rv1126_gpll_set_clk(struct rv1126_clk_priv *priv, ulong rate)
+{
+ struct udevice *pmucru_dev;
+ struct rv1126_pmuclk_priv *pmu_priv;
+ int ret;
+
+ ret = uclass_get_device_by_driver(UCLASS_CLK,
+ DM_DRIVER_GET(rockchip_rv1126_pmucru),
+ &pmucru_dev);
+ if (ret) {
+ printf("%s: could not find pmucru device\n", __func__);
+ return ret;
+ }
+ pmu_priv = dev_get_priv(pmucru_dev);
+ priv->gpll_hz = pmu_priv->gpll_hz;
+
+ if (rv1126_gpll_set_rate(priv, pmu_priv, rate)) {
+ printf("%s: failed to set gpll rate %lu\n", __func__, rate);
+ return -EINVAL;
+ }
+
+ rv1126_pdpmu_set_pmuclk(pmu_priv, PCLK_PDPMU_HZ);
+ rv1126_rtc32k_set_pmuclk(pmu_priv, CLK_OSC0_DIV_HZ);
+
+ return 0;
+}
+
+static void rv1126_clk_init(struct rv1126_clk_priv *priv)
+{
+ int ret;
+
+ priv->sync_kernel = false;
+ if (!priv->armclk_enter_hz) {
+ priv->armclk_enter_hz =
+ rockchip_pll_get_rate(&rv1126_pll_clks[APLL],
+ priv->cru, APLL);
+ priv->armclk_init_hz = priv->armclk_enter_hz;
+ }
+
+ if (priv->armclk_init_hz != APLL_HZ) {
+ ret = rv1126_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(&rv1126_pll_clks[CPLL], priv->cru,
+ CPLL, CPLL_HZ);
+ if (!ret)
+ priv->cpll_hz = CPLL_HZ;
+ }
+ if (priv->hpll_hz != HPLL_HZ) {
+ ret = rockchip_pll_set_rate(&rv1126_pll_clks[HPLL], priv->cru,
+ HPLL, HPLL_HZ);
+ if (!ret)
+ priv->hpll_hz = HPLL_HZ;
+ }
+ if (priv->gpll_hz != GPLL_HZ)
+ rv1126_gpll_set_clk(priv, GPLL_HZ);
+
+ rv1126_pdbus_set_clk(priv, ACLK_PDBUS, ACLK_PDBUS_HZ);
+ rv1126_pdbus_set_clk(priv, HCLK_PDBUS, HCLK_PDBUS_HZ);
+ rv1126_pdbus_set_clk(priv, PCLK_PDBUS, PCLK_PDBUS_HZ);
+ rv1126_pdphp_set_clk(priv, ACLK_PDPHP, ACLK_PDPHP_HZ);
+ rv1126_pdphp_set_clk(priv, HCLK_PDPHP, HCLK_PDPHP_HZ);
+ rv1126_pdcore_set_clk(priv, HCLK_PDCORE_HZ);
+ rv1126_pdaudio_set_clk(priv, HCLK_PDAUDIO_HZ);
+}
+
+static int rv1126_clk_probe(struct udevice *dev)
+{
+ struct rv1126_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);
+
+ rv1126_clk_init(priv);
+
+ /* Process 'assigned-{clocks/clock-parents/clock-rates}' properties */
+ ret = clk_set_defaults(dev, 1);
+ if (ret)
+ debug("%s clk_set_defaults failed %d\n", __func__, ret);
+ else
+ priv->sync_kernel = true;
+
+ return 0;
+}
+
+static int rv1126_clk_of_to_plat(struct udevice *dev)
+{
+ struct rv1126_clk_priv *priv = dev_get_priv(dev);
+
+ priv->cru = dev_read_addr_ptr(dev);
+
+ return 0;
+}
+
+static int rv1126_clk_bind(struct udevice *dev)
+{
+ int ret;
+ struct udevice *sys_child;
+ struct sysreset_reg *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 rv1126_cru,
+ glb_srst_fst);
+ priv->glb_srst_snd_value = offsetof(struct rv1126_cru,
+ glb_srst_snd);
+ dev_set_priv(sys_child, priv);
+ }
+
+#if CONFIG_IS_ENABLED(RESET_ROCKCHIP)
+ ret = offsetof(struct rv1126_cru, softrst_con[0]);
+ ret = rockchip_reset_bind(dev, ret, 15);
+ if (ret)
+ debug("Warning: software reset driver bind faile\n");
+#endif
+ return 0;
+}
+
+static const struct udevice_id rv1126_clk_ids[] = {
+ { .compatible = "rockchip,rv1126-cru" },
+ { }
+};
+
+U_BOOT_DRIVER(rockchip_rv1126_cru) = {
+ .name = "rockchip_rv1126_cru",
+ .id = UCLASS_CLK,
+ .of_match = rv1126_clk_ids,
+ .priv_auto = sizeof(struct rv1126_clk_priv),
+ .of_to_plat = rv1126_clk_of_to_plat,
+ .ops = &rv1126_clk_ops,
+ .bind = rv1126_clk_bind,
+ .probe = rv1126_clk_probe,
+};
--
2.25.1
