rockchip: clk: add px30 clock driver
The px30 contains 2 separate clock controllers, pmucru and cru.
Add drivers for them.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/clk/rockchip/clk_px30.c b/drivers/clk/rockchip/clk_px30.c
new file mode 100644
index 0000000..36764c1
--- /dev/null
+++ b/drivers/clk/rockchip/clk_px30.c
@@ -0,0 +1,1630 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * (C) Copyright 2017 Rockchip Electronics Co., Ltd
+ */
+
+#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_px30.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <asm/io.h>
+#include <dm/lists.h>
+#include <dt-bindings/clock/px30-cru.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum {
+ VCO_MAX_HZ = 3200U * 1000000,
+ VCO_MIN_HZ = 800 * 1000000,
+ OUTPUT_MAX_HZ = 3200U * 1000000,
+ OUTPUT_MIN_HZ = 24 * 1000000,
+};
+
+#define PX30_VOP_PLL_LIMIT 600000000
+
+#define PX30_PLL_RATE(_rate, _refdiv, _fbdiv, _postdiv1, \
+ _postdiv2, _dsmpd, _frac) \
+{ \
+ .rate = _rate##U, \
+ .fbdiv = _fbdiv, \
+ .postdiv1 = _postdiv1, \
+ .refdiv = _refdiv, \
+ .postdiv2 = _postdiv2, \
+ .dsmpd = _dsmpd, \
+ .frac = _frac, \
+}
+
+#define PX30_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))
+
+#define PX30_CLK_DUMP(_id, _name, _iscru) \
+{ \
+ .id = _id, \
+ .name = _name, \
+ .is_cru = _iscru, \
+}
+
+static struct pll_rate_table px30_pll_rates[] = {
+ /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
+ PX30_PLL_RATE(1200000000, 1, 50, 1, 1, 1, 0),
+ PX30_PLL_RATE(1188000000, 2, 99, 1, 1, 1, 0),
+ PX30_PLL_RATE(1100000000, 12, 550, 1, 1, 1, 0),
+ PX30_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0),
+ PX30_PLL_RATE(1000000000, 6, 500, 2, 1, 1, 0),
+ PX30_PLL_RATE(816000000, 1, 68, 2, 1, 1, 0),
+ PX30_PLL_RATE(600000000, 1, 75, 3, 1, 1, 0),
+};
+
+static struct cpu_rate_table px30_cpu_rates[] = {
+ PX30_CPUCLK_RATE(1200000000, 1, 5),
+ PX30_CPUCLK_RATE(1008000000, 1, 5),
+ PX30_CPUCLK_RATE(816000000, 1, 3),
+ PX30_CPUCLK_RATE(600000000, 1, 3),
+ PX30_CPUCLK_RATE(408000000, 1, 1),
+};
+
+static u8 pll_mode_shift[PLL_COUNT] = {
+ APLL_MODE_SHIFT, DPLL_MODE_SHIFT, CPLL_MODE_SHIFT,
+ NPLL_MODE_SHIFT, GPLL_MODE_SHIFT
+};
+
+static u32 pll_mode_mask[PLL_COUNT] = {
+ APLL_MODE_MASK, DPLL_MODE_MASK, CPLL_MODE_MASK,
+ NPLL_MODE_MASK, GPLL_MODE_MASK
+};
+
+static struct pll_rate_table auto_table;
+
+static ulong px30_clk_get_pll_rate(struct px30_clk_priv *priv,
+ enum px30_pll_id pll_id);
+
+static struct pll_rate_table *pll_clk_set_by_auto(u32 drate)
+{
+ struct pll_rate_table *rate = &auto_table;
+ u32 ref_khz = OSC_HZ / KHz, refdiv, fbdiv = 0;
+ u32 postdiv1, postdiv2 = 1;
+ u32 fref_khz;
+ u32 diff_khz, best_diff_khz;
+ const u32 max_refdiv = 63, max_fbdiv = 3200, min_fbdiv = 16;
+ const u32 max_postdiv1 = 7, max_postdiv2 = 7;
+ u32 vco_khz;
+ u32 rate_khz = drate / KHz;
+
+ if (!drate) {
+ printf("%s: the frequency can't be 0 Hz\n", __func__);
+ return NULL;
+ }
+
+ postdiv1 = DIV_ROUND_UP(VCO_MIN_HZ / 1000, rate_khz);
+ if (postdiv1 > max_postdiv1) {
+ postdiv2 = DIV_ROUND_UP(postdiv1, max_postdiv1);
+ postdiv1 = DIV_ROUND_UP(postdiv1, postdiv2);
+ }
+
+ vco_khz = rate_khz * postdiv1 * postdiv2;
+
+ if (vco_khz < (VCO_MIN_HZ / KHz) || vco_khz > (VCO_MAX_HZ / KHz) ||
+ postdiv2 > max_postdiv2) {
+ printf("%s: Cannot find out a supported VCO for Freq (%uHz)\n",
+ __func__, rate_khz);
+ return NULL;
+ }
+
+ rate->postdiv1 = postdiv1;
+ rate->postdiv2 = postdiv2;
+
+ best_diff_khz = vco_khz;
+ for (refdiv = 1; refdiv < max_refdiv && best_diff_khz; refdiv++) {
+ fref_khz = ref_khz / refdiv;
+
+ fbdiv = vco_khz / fref_khz;
+ if (fbdiv >= max_fbdiv || fbdiv <= min_fbdiv)
+ continue;
+
+ diff_khz = vco_khz - fbdiv * fref_khz;
+ if (fbdiv + 1 < max_fbdiv && diff_khz > fref_khz / 2) {
+ fbdiv++;
+ diff_khz = fref_khz - diff_khz;
+ }
+
+ if (diff_khz >= best_diff_khz)
+ continue;
+
+ best_diff_khz = diff_khz;
+ rate->refdiv = refdiv;
+ rate->fbdiv = fbdiv;
+ }
+
+ if (best_diff_khz > 4 * (MHz / KHz)) {
+ printf("%s: Failed to match output frequency %u bestis %u Hz\n",
+ __func__, rate_khz,
+ best_diff_khz * KHz);
+ return NULL;
+ }
+
+ return rate;
+}
+
+static const struct pll_rate_table *get_pll_settings(unsigned long rate)
+{
+ unsigned int rate_count = ARRAY_SIZE(px30_pll_rates);
+ int i;
+
+ for (i = 0; i < rate_count; i++) {
+ if (rate == px30_pll_rates[i].rate)
+ return &px30_pll_rates[i];
+ }
+
+ return pll_clk_set_by_auto(rate);
+}
+
+static const struct cpu_rate_table *get_cpu_settings(unsigned long rate)
+{
+ unsigned int rate_count = ARRAY_SIZE(px30_cpu_rates);
+ int i;
+
+ for (i = 0; i < rate_count; i++) {
+ if (rate == px30_cpu_rates[i].rate)
+ return &px30_cpu_rates[i];
+ }
+
+ return NULL;
+}
+
+/*
+ * How to calculate the PLL(from TRM V0.3 Part 1 Page 63):
+ * Formulas also embedded within the Fractional PLL Verilog model:
+ * If DSMPD = 1 (DSM is disabled, "integer mode")
+ * FOUTVCO = FREF / REFDIV * FBDIV
+ * FOUTPOSTDIV = FOUTVCO / POSTDIV1 / POSTDIV2
+ * Where:
+ * FOUTVCO = Fractional PLL non-divided output frequency
+ * FOUTPOSTDIV = Fractional PLL divided output frequency
+ * (output of second post divider)
+ * FREF = Fractional PLL input reference frequency, (the OSC_HZ 24MHz input)
+ * REFDIV = Fractional PLL input reference clock divider
+ * FBDIV = Integer value programmed into feedback divide
+ *
+ */
+static int rkclk_set_pll(struct px30_pll *pll, unsigned int *mode,
+ enum px30_pll_id pll_id,
+ unsigned long drate)
+{
+ const struct pll_rate_table *rate;
+ uint vco_hz, output_hz;
+
+ rate = get_pll_settings(drate);
+ if (!rate) {
+ printf("%s unsupport rate\n", __func__);
+ return -EINVAL;
+ }
+
+ /* All PLLs have same VCO and output frequency range restrictions. */
+ vco_hz = OSC_HZ / 1000 * rate->fbdiv / rate->refdiv * 1000;
+ output_hz = vco_hz / rate->postdiv1 / rate->postdiv2;
+
+ debug("PLL at %p: fb=%d, ref=%d, pst1=%d, pst2=%d, vco=%u Hz, output=%u Hz\n",
+ pll, rate->fbdiv, rate->refdiv, rate->postdiv1,
+ rate->postdiv2, vco_hz, output_hz);
+ assert(vco_hz >= VCO_MIN_HZ && vco_hz <= VCO_MAX_HZ &&
+ output_hz >= OUTPUT_MIN_HZ && output_hz <= OUTPUT_MAX_HZ);
+
+ /*
+ * When power on or changing PLL setting,
+ * we must force PLL into slow mode to ensure output stable clock.
+ */
+ rk_clrsetreg(mode, pll_mode_mask[pll_id],
+ PLLMUX_FROM_XIN24M << pll_mode_shift[pll_id]);
+
+ /* use integer mode */
+ rk_setreg(&pll->con1, 1 << PLL_DSMPD_SHIFT);
+ /* Power down */
+ rk_setreg(&pll->con1, 1 << PLL_PD_SHIFT);
+
+ rk_clrsetreg(&pll->con0,
+ PLL_POSTDIV1_MASK | PLL_FBDIV_MASK,
+ (rate->postdiv1 << PLL_POSTDIV1_SHIFT) | rate->fbdiv);
+ rk_clrsetreg(&pll->con1, PLL_POSTDIV2_MASK | PLL_REFDIV_MASK,
+ (rate->postdiv2 << PLL_POSTDIV2_SHIFT |
+ rate->refdiv << PLL_REFDIV_SHIFT));
+
+ /* Power Up */
+ rk_clrreg(&pll->con1, 1 << PLL_PD_SHIFT);
+
+ /* waiting for pll lock */
+ while (!(readl(&pll->con1) & (1 << PLL_LOCK_STATUS_SHIFT)))
+ udelay(1);
+
+ rk_clrsetreg(mode, pll_mode_mask[pll_id],
+ PLLMUX_FROM_PLL << pll_mode_shift[pll_id]);
+
+ return 0;
+}
+
+static uint32_t rkclk_pll_get_rate(struct px30_pll *pll, unsigned int *mode,
+ enum px30_pll_id pll_id)
+{
+ u32 refdiv, fbdiv, postdiv1, postdiv2;
+ u32 con, shift, mask;
+
+ con = readl(mode);
+ shift = pll_mode_shift[pll_id];
+ mask = pll_mode_mask[pll_id];
+
+ switch ((con & mask) >> shift) {
+ case PLLMUX_FROM_XIN24M:
+ return OSC_HZ;
+ case PLLMUX_FROM_PLL:
+ /* normal mode */
+ con = readl(&pll->con0);
+ postdiv1 = (con & PLL_POSTDIV1_MASK) >> PLL_POSTDIV1_SHIFT;
+ fbdiv = (con & PLL_FBDIV_MASK) >> PLL_FBDIV_SHIFT;
+ con = readl(&pll->con1);
+ postdiv2 = (con & PLL_POSTDIV2_MASK) >> PLL_POSTDIV2_SHIFT;
+ refdiv = (con & PLL_REFDIV_MASK) >> PLL_REFDIV_SHIFT;
+ return (24 * fbdiv / (refdiv * postdiv1 * postdiv2)) * 1000000;
+ case PLLMUX_FROM_RTC32K:
+ default:
+ return 32768;
+ }
+}
+
+static ulong px30_i2c_get_clk(struct px30_clk_priv *priv, ulong clk_id)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con;
+
+ switch (clk_id) {
+ case SCLK_I2C0:
+ con = readl(&cru->clksel_con[49]);
+ div = con >> CLK_I2C0_DIV_CON_SHIFT & CLK_I2C_DIV_CON_MASK;
+ break;
+ case SCLK_I2C1:
+ con = readl(&cru->clksel_con[49]);
+ div = con >> CLK_I2C1_DIV_CON_SHIFT & CLK_I2C_DIV_CON_MASK;
+ break;
+ case SCLK_I2C2:
+ con = readl(&cru->clksel_con[50]);
+ div = con >> CLK_I2C2_DIV_CON_SHIFT & CLK_I2C_DIV_CON_MASK;
+ break;
+ case SCLK_I2C3:
+ con = readl(&cru->clksel_con[50]);
+ div = con >> CLK_I2C3_DIV_CON_SHIFT & CLK_I2C_DIV_CON_MASK;
+ break;
+ default:
+ printf("do not support this i2c bus\n");
+ return -EINVAL;
+ }
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong px30_i2c_set_clk(struct px30_clk_priv *priv, ulong clk_id, uint hz)
+{
+ struct px30_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, hz);
+ assert(src_clk_div - 1 <= 127);
+
+ switch (clk_id) {
+ case SCLK_I2C0:
+ rk_clrsetreg(&cru->clksel_con[49],
+ CLK_I2C_DIV_CON_MASK << CLK_I2C0_DIV_CON_SHIFT |
+ CLK_I2C_PLL_SEL_MASK << CLK_I2C0_PLL_SEL_SHIFT,
+ (src_clk_div - 1) << CLK_I2C0_DIV_CON_SHIFT |
+ CLK_I2C_PLL_SEL_GPLL << CLK_I2C0_PLL_SEL_SHIFT);
+ break;
+ case SCLK_I2C1:
+ rk_clrsetreg(&cru->clksel_con[49],
+ CLK_I2C_DIV_CON_MASK << CLK_I2C1_DIV_CON_SHIFT |
+ CLK_I2C_PLL_SEL_MASK << CLK_I2C1_PLL_SEL_SHIFT,
+ (src_clk_div - 1) << CLK_I2C1_DIV_CON_SHIFT |
+ CLK_I2C_PLL_SEL_GPLL << CLK_I2C1_PLL_SEL_SHIFT);
+ break;
+ case SCLK_I2C2:
+ rk_clrsetreg(&cru->clksel_con[50],
+ CLK_I2C_DIV_CON_MASK << CLK_I2C2_DIV_CON_SHIFT |
+ CLK_I2C_PLL_SEL_MASK << CLK_I2C2_PLL_SEL_SHIFT,
+ (src_clk_div - 1) << CLK_I2C2_DIV_CON_SHIFT |
+ CLK_I2C_PLL_SEL_GPLL << CLK_I2C2_PLL_SEL_SHIFT);
+ break;
+ case SCLK_I2C3:
+ rk_clrsetreg(&cru->clksel_con[50],
+ CLK_I2C_DIV_CON_MASK << CLK_I2C3_DIV_CON_SHIFT |
+ CLK_I2C_PLL_SEL_MASK << CLK_I2C3_PLL_SEL_SHIFT,
+ (src_clk_div - 1) << CLK_I2C3_DIV_CON_SHIFT |
+ CLK_I2C_PLL_SEL_GPLL << CLK_I2C3_PLL_SEL_SHIFT);
+ break;
+ default:
+ printf("do not support this i2c bus\n");
+ return -EINVAL;
+ }
+
+ return px30_i2c_get_clk(priv, clk_id);
+}
+
+/*
+ * calculate best rational approximation for a given fraction
+ * taking into account restricted register size, e.g. to find
+ * appropriate values for a pll with 5 bit denominator and
+ * 8 bit numerator register fields, trying to set up with a
+ * frequency ratio of 3.1415, one would say:
+ *
+ * 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 px30_i2s_get_clk(struct px30_clk_priv *priv, ulong clk_id)
+{
+ u32 con, fracdiv, gate;
+ u32 clk_src = priv->gpll_hz / 2;
+ unsigned long m, n;
+ struct px30_cru *cru = priv->cru;
+
+ switch (clk_id) {
+ case SCLK_I2S1:
+ con = readl(&cru->clksel_con[30]);
+ fracdiv = readl(&cru->clksel_con[31]);
+ gate = readl(&cru->clkgate_con[10]);
+ m = fracdiv & CLK_I2S1_FRAC_NUMERATOR_MASK;
+ m >>= CLK_I2S1_FRAC_NUMERATOR_SHIFT;
+ n = fracdiv & CLK_I2S1_FRAC_DENOMINATOR_MASK;
+ n >>= CLK_I2S1_FRAC_DENOMINATOR_SHIFT;
+ debug("con30: 0x%x, gate: 0x%x, frac: 0x%x\n",
+ con, gate, fracdiv);
+ break;
+ default:
+ printf("do not support this i2s bus\n");
+ return -EINVAL;
+ }
+
+ return clk_src * n / m;
+}
+
+static ulong px30_i2s_set_clk(struct px30_clk_priv *priv, ulong clk_id, uint hz)
+{
+ u32 clk_src;
+ unsigned long m, n, val;
+ struct px30_cru *cru = priv->cru;
+
+ clk_src = priv->gpll_hz / 2;
+ rational_best_approximation(hz, clk_src,
+ GENMASK(16 - 1, 0),
+ GENMASK(16 - 1, 0),
+ &m, &n);
+ switch (clk_id) {
+ case SCLK_I2S1:
+ rk_clrsetreg(&cru->clksel_con[30],
+ CLK_I2S1_PLL_SEL_MASK, CLK_I2S1_PLL_SEL_GPLL);
+ rk_clrsetreg(&cru->clksel_con[30],
+ CLK_I2S1_DIV_CON_MASK, 0x1);
+ rk_clrsetreg(&cru->clksel_con[30],
+ CLK_I2S1_SEL_MASK, CLK_I2S1_SEL_FRAC);
+ val = m << CLK_I2S1_FRAC_NUMERATOR_SHIFT | n;
+ writel(val, &cru->clksel_con[31]);
+ rk_clrsetreg(&cru->clkgate_con[10],
+ CLK_I2S1_OUT_MCLK_PAD_MASK,
+ CLK_I2S1_OUT_MCLK_PAD_ENABLE);
+ break;
+ default:
+ printf("do not support this i2s bus\n");
+ return -EINVAL;
+ }
+
+ return px30_i2s_get_clk(priv, clk_id);
+}
+
+static ulong px30_nandc_get_clk(struct px30_clk_priv *priv)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con;
+
+ con = readl(&cru->clksel_con[15]);
+ div = (con & NANDC_DIV_MASK) >> NANDC_DIV_SHIFT;
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong px30_nandc_set_clk(struct px30_clk_priv *priv,
+ ulong set_rate)
+{
+ struct px30_cru *cru = priv->cru;
+ int src_clk_div;
+
+ /* Select nandc source from GPLL by default */
+ /* nandc clock defaulg div 2 internal, need provide double in cru */
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, set_rate);
+ assert(src_clk_div - 1 <= 31);
+
+ rk_clrsetreg(&cru->clksel_con[15],
+ NANDC_CLK_SEL_MASK | NANDC_PLL_MASK |
+ NANDC_DIV_MASK,
+ NANDC_CLK_SEL_NANDC << NANDC_CLK_SEL_SHIFT |
+ NANDC_SEL_GPLL << NANDC_PLL_SHIFT |
+ (src_clk_div - 1) << NANDC_DIV_SHIFT);
+
+ return px30_nandc_get_clk(priv);
+}
+
+static ulong px30_mmc_get_clk(struct px30_clk_priv *priv, uint clk_id)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con, con_id;
+
+ switch (clk_id) {
+ case HCLK_SDMMC:
+ case SCLK_SDMMC:
+ con_id = 16;
+ break;
+ case HCLK_EMMC:
+ case SCLK_EMMC:
+ case SCLK_EMMC_SAMPLE:
+ con_id = 20;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ con = readl(&cru->clksel_con[con_id]);
+ div = (con & EMMC_DIV_MASK) >> EMMC_DIV_SHIFT;
+
+ if ((con & EMMC_PLL_MASK) >> EMMC_PLL_SHIFT
+ == EMMC_SEL_24M)
+ return DIV_TO_RATE(OSC_HZ, div) / 2;
+ else
+ return DIV_TO_RATE(priv->gpll_hz, div) / 2;
+}
+
+static ulong px30_mmc_set_clk(struct px30_clk_priv *priv,
+ ulong clk_id, ulong set_rate)
+{
+ struct px30_cru *cru = priv->cru;
+ int src_clk_div;
+ u32 con_id;
+
+ switch (clk_id) {
+ case HCLK_SDMMC:
+ case SCLK_SDMMC:
+ con_id = 16;
+ break;
+ case HCLK_EMMC:
+ case SCLK_EMMC:
+ con_id = 20;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* 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, set_rate);
+
+ if (src_clk_div > 127) {
+ /* use 24MHz source for 400KHz clock */
+ src_clk_div = DIV_ROUND_UP(OSC_HZ / 2, set_rate);
+ rk_clrsetreg(&cru->clksel_con[con_id],
+ EMMC_PLL_MASK | EMMC_DIV_MASK,
+ EMMC_SEL_24M << EMMC_PLL_SHIFT |
+ (src_clk_div - 1) << EMMC_DIV_SHIFT);
+ } else {
+ rk_clrsetreg(&cru->clksel_con[con_id],
+ EMMC_PLL_MASK | EMMC_DIV_MASK,
+ EMMC_SEL_GPLL << EMMC_PLL_SHIFT |
+ (src_clk_div - 1) << EMMC_DIV_SHIFT);
+ }
+ rk_clrsetreg(&cru->clksel_con[con_id + 1], EMMC_CLK_SEL_MASK,
+ EMMC_CLK_SEL_EMMC);
+
+ return px30_mmc_get_clk(priv, clk_id);
+}
+
+static ulong px30_pwm_get_clk(struct px30_clk_priv *priv, ulong clk_id)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con;
+
+ switch (clk_id) {
+ case SCLK_PWM0:
+ con = readl(&cru->clksel_con[52]);
+ div = con >> CLK_PWM0_DIV_CON_SHIFT & CLK_PWM_DIV_CON_MASK;
+ break;
+ case SCLK_PWM1:
+ con = readl(&cru->clksel_con[52]);
+ div = con >> CLK_PWM1_DIV_CON_SHIFT & CLK_PWM_DIV_CON_MASK;
+ break;
+ default:
+ printf("do not support this pwm bus\n");
+ return -EINVAL;
+ }
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong px30_pwm_set_clk(struct px30_clk_priv *priv, ulong clk_id, uint hz)
+{
+ struct px30_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, hz);
+ assert(src_clk_div - 1 <= 127);
+
+ switch (clk_id) {
+ case SCLK_PWM0:
+ rk_clrsetreg(&cru->clksel_con[52],
+ CLK_PWM_DIV_CON_MASK << CLK_PWM0_DIV_CON_SHIFT |
+ CLK_PWM_PLL_SEL_MASK << CLK_PWM0_PLL_SEL_SHIFT,
+ (src_clk_div - 1) << CLK_PWM0_DIV_CON_SHIFT |
+ CLK_PWM_PLL_SEL_GPLL << CLK_PWM0_PLL_SEL_SHIFT);
+ break;
+ case SCLK_PWM1:
+ rk_clrsetreg(&cru->clksel_con[52],
+ CLK_PWM_DIV_CON_MASK << CLK_PWM1_DIV_CON_SHIFT |
+ CLK_PWM_PLL_SEL_MASK << CLK_PWM1_PLL_SEL_SHIFT,
+ (src_clk_div - 1) << CLK_PWM1_DIV_CON_SHIFT |
+ CLK_PWM_PLL_SEL_GPLL << CLK_PWM1_PLL_SEL_SHIFT);
+ break;
+ default:
+ printf("do not support this pwm bus\n");
+ return -EINVAL;
+ }
+
+ return px30_pwm_get_clk(priv, clk_id);
+}
+
+static ulong px30_saradc_get_clk(struct px30_clk_priv *priv)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con;
+
+ con = readl(&cru->clksel_con[55]);
+ div = con >> CLK_SARADC_DIV_CON_SHIFT & CLK_SARADC_DIV_CON_MASK;
+
+ return DIV_TO_RATE(OSC_HZ, div);
+}
+
+static ulong px30_saradc_set_clk(struct px30_clk_priv *priv, uint hz)
+{
+ struct px30_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(OSC_HZ, hz);
+ assert(src_clk_div - 1 <= 2047);
+
+ rk_clrsetreg(&cru->clksel_con[55],
+ CLK_SARADC_DIV_CON_MASK,
+ (src_clk_div - 1) << CLK_SARADC_DIV_CON_SHIFT);
+
+ return px30_saradc_get_clk(priv);
+}
+
+static ulong px30_tsadc_get_clk(struct px30_clk_priv *priv)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con;
+
+ con = readl(&cru->clksel_con[54]);
+ div = con >> CLK_SARADC_DIV_CON_SHIFT & CLK_SARADC_DIV_CON_MASK;
+
+ return DIV_TO_RATE(OSC_HZ, div);
+}
+
+static ulong px30_tsadc_set_clk(struct px30_clk_priv *priv, uint hz)
+{
+ struct px30_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(OSC_HZ, hz);
+ assert(src_clk_div - 1 <= 2047);
+
+ rk_clrsetreg(&cru->clksel_con[54],
+ CLK_SARADC_DIV_CON_MASK,
+ (src_clk_div - 1) << CLK_SARADC_DIV_CON_SHIFT);
+
+ return px30_tsadc_get_clk(priv);
+}
+
+static ulong px30_spi_get_clk(struct px30_clk_priv *priv, ulong clk_id)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con;
+
+ switch (clk_id) {
+ case SCLK_SPI0:
+ con = readl(&cru->clksel_con[53]);
+ div = con >> CLK_SPI0_DIV_CON_SHIFT & CLK_SPI_DIV_CON_MASK;
+ break;
+ case SCLK_SPI1:
+ con = readl(&cru->clksel_con[53]);
+ div = con >> CLK_SPI1_DIV_CON_SHIFT & CLK_SPI_DIV_CON_MASK;
+ break;
+ default:
+ printf("do not support this pwm bus\n");
+ return -EINVAL;
+ }
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong px30_spi_set_clk(struct px30_clk_priv *priv, ulong clk_id, uint hz)
+{
+ struct px30_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, hz);
+ assert(src_clk_div - 1 <= 127);
+
+ switch (clk_id) {
+ case SCLK_SPI0:
+ rk_clrsetreg(&cru->clksel_con[53],
+ CLK_SPI_DIV_CON_MASK << CLK_SPI0_DIV_CON_SHIFT |
+ CLK_SPI_PLL_SEL_MASK << CLK_SPI0_PLL_SEL_SHIFT,
+ (src_clk_div - 1) << CLK_SPI0_DIV_CON_SHIFT |
+ CLK_SPI_PLL_SEL_GPLL << CLK_SPI0_PLL_SEL_SHIFT);
+ break;
+ case SCLK_SPI1:
+ rk_clrsetreg(&cru->clksel_con[53],
+ CLK_SPI_DIV_CON_MASK << CLK_SPI1_DIV_CON_SHIFT |
+ CLK_SPI_PLL_SEL_MASK << CLK_SPI1_PLL_SEL_SHIFT,
+ (src_clk_div - 1) << CLK_SPI1_DIV_CON_SHIFT |
+ CLK_SPI_PLL_SEL_GPLL << CLK_SPI1_PLL_SEL_SHIFT);
+ break;
+ default:
+ printf("do not support this pwm bus\n");
+ return -EINVAL;
+ }
+
+ return px30_spi_get_clk(priv, clk_id);
+}
+
+static ulong px30_vop_get_clk(struct px30_clk_priv *priv, ulong clk_id)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con, parent;
+
+ switch (clk_id) {
+ case ACLK_VOPB:
+ case ACLK_VOPL:
+ con = readl(&cru->clksel_con[3]);
+ div = con & ACLK_VO_DIV_MASK;
+ parent = priv->gpll_hz;
+ break;
+ case DCLK_VOPB:
+ con = readl(&cru->clksel_con[5]);
+ div = con & DCLK_VOPB_DIV_MASK;
+ parent = rkclk_pll_get_rate(&cru->pll[CPLL], &cru->mode, CPLL);
+ break;
+ case DCLK_VOPL:
+ con = readl(&cru->clksel_con[8]);
+ div = con & DCLK_VOPL_DIV_MASK;
+ parent = rkclk_pll_get_rate(&cru->pll[NPLL], &cru->mode, NPLL);
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong px30_vop_set_clk(struct px30_clk_priv *priv, ulong clk_id, uint hz)
+{
+ struct px30_cru *cru = priv->cru;
+ ulong npll_hz;
+ int src_clk_div;
+
+ switch (clk_id) {
+ case ACLK_VOPB:
+ case ACLK_VOPL:
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, hz);
+ assert(src_clk_div - 1 <= 31);
+ rk_clrsetreg(&cru->clksel_con[3],
+ ACLK_VO_PLL_MASK | ACLK_VO_DIV_MASK,
+ ACLK_VO_SEL_GPLL << ACLK_VO_PLL_SHIFT |
+ (src_clk_div - 1) << ACLK_VO_DIV_SHIFT);
+ break;
+ case DCLK_VOPB:
+ if (hz < PX30_VOP_PLL_LIMIT) {
+ src_clk_div = DIV_ROUND_UP(PX30_VOP_PLL_LIMIT, hz);
+ if (src_clk_div % 2)
+ src_clk_div = src_clk_div - 1;
+ } else {
+ src_clk_div = 1;
+ }
+ assert(src_clk_div - 1 <= 255);
+ rkclk_set_pll(&cru->pll[CPLL], &cru->mode,
+ CPLL, hz * src_clk_div);
+ rk_clrsetreg(&cru->clksel_con[5],
+ DCLK_VOPB_SEL_MASK | DCLK_VOPB_PLL_SEL_MASK |
+ DCLK_VOPB_DIV_MASK,
+ DCLK_VOPB_SEL_DIVOUT << DCLK_VOPB_SEL_SHIFT |
+ DCLK_VOPB_PLL_SEL_CPLL << DCLK_VOPB_PLL_SEL_SHIFT |
+ (src_clk_div - 1) << DCLK_VOPB_DIV_SHIFT);
+ break;
+ case DCLK_VOPL:
+ npll_hz = px30_clk_get_pll_rate(priv, NPLL);
+ if (npll_hz >= PX30_VOP_PLL_LIMIT && npll_hz >= hz &&
+ npll_hz % hz == 0) {
+ src_clk_div = npll_hz / hz;
+ assert(src_clk_div - 1 <= 255);
+ } else {
+ if (hz < PX30_VOP_PLL_LIMIT) {
+ src_clk_div = DIV_ROUND_UP(PX30_VOP_PLL_LIMIT,
+ hz);
+ if (src_clk_div % 2)
+ src_clk_div = src_clk_div - 1;
+ } else {
+ src_clk_div = 1;
+ }
+ assert(src_clk_div - 1 <= 255);
+ rkclk_set_pll(&cru->pll[NPLL], &cru->mode, NPLL,
+ hz * src_clk_div);
+ }
+ rk_clrsetreg(&cru->clksel_con[8],
+ DCLK_VOPL_SEL_MASK | DCLK_VOPL_PLL_SEL_MASK |
+ DCLK_VOPL_DIV_MASK,
+ DCLK_VOPL_SEL_DIVOUT << DCLK_VOPL_SEL_SHIFT |
+ DCLK_VOPL_PLL_SEL_NPLL << DCLK_VOPL_PLL_SEL_SHIFT |
+ (src_clk_div - 1) << DCLK_VOPL_DIV_SHIFT);
+ break;
+ default:
+ printf("do not support this vop freq\n");
+ return -EINVAL;
+ }
+
+ return px30_vop_get_clk(priv, clk_id);
+}
+
+static ulong px30_bus_get_clk(struct px30_clk_priv *priv, ulong clk_id)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con, parent;
+
+ switch (clk_id) {
+ case ACLK_BUS_PRE:
+ con = readl(&cru->clksel_con[23]);
+ div = (con & BUS_ACLK_DIV_MASK) >> BUS_ACLK_DIV_SHIFT;
+ parent = priv->gpll_hz;
+ break;
+ case HCLK_BUS_PRE:
+ con = readl(&cru->clksel_con[24]);
+ div = (con & BUS_HCLK_DIV_MASK) >> BUS_HCLK_DIV_SHIFT;
+ parent = priv->gpll_hz;
+ break;
+ case PCLK_BUS_PRE:
+ case PCLK_WDT_NS:
+ parent = px30_bus_get_clk(priv, ACLK_BUS_PRE);
+ con = readl(&cru->clksel_con[24]);
+ div = (con & BUS_PCLK_DIV_MASK) >> BUS_PCLK_DIV_SHIFT;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong px30_bus_set_clk(struct px30_clk_priv *priv, ulong clk_id,
+ ulong hz)
+{
+ struct px30_cru *cru = priv->cru;
+ int src_clk_div;
+
+ /*
+ * select gpll as pd_bus bus clock source and
+ * set up dependent divisors for PCLK/HCLK and ACLK clocks.
+ */
+ switch (clk_id) {
+ case ACLK_BUS_PRE:
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, hz);
+ assert(src_clk_div - 1 <= 31);
+ rk_clrsetreg(&cru->clksel_con[23],
+ BUS_PLL_SEL_MASK | BUS_ACLK_DIV_MASK,
+ BUS_PLL_SEL_GPLL << BUS_PLL_SEL_SHIFT |
+ (src_clk_div - 1) << BUS_ACLK_DIV_SHIFT);
+ break;
+ case HCLK_BUS_PRE:
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, hz);
+ assert(src_clk_div - 1 <= 31);
+ rk_clrsetreg(&cru->clksel_con[24],
+ BUS_PLL_SEL_MASK | BUS_HCLK_DIV_MASK,
+ BUS_PLL_SEL_GPLL << BUS_PLL_SEL_SHIFT |
+ (src_clk_div - 1) << BUS_HCLK_DIV_SHIFT);
+ break;
+ case PCLK_BUS_PRE:
+ src_clk_div =
+ DIV_ROUND_UP(px30_bus_get_clk(priv, ACLK_BUS_PRE), hz);
+ assert(src_clk_div - 1 <= 3);
+ rk_clrsetreg(&cru->clksel_con[24],
+ BUS_PCLK_DIV_MASK,
+ (src_clk_div - 1) << BUS_PCLK_DIV_SHIFT);
+ break;
+ default:
+ printf("do not support this bus freq\n");
+ return -EINVAL;
+ }
+
+ return px30_bus_get_clk(priv, clk_id);
+}
+
+static ulong px30_peri_get_clk(struct px30_clk_priv *priv, ulong clk_id)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con, parent;
+
+ switch (clk_id) {
+ case ACLK_PERI_PRE:
+ con = readl(&cru->clksel_con[14]);
+ div = (con & PERI_ACLK_DIV_MASK) >> PERI_ACLK_DIV_SHIFT;
+ parent = priv->gpll_hz;
+ break;
+ case HCLK_PERI_PRE:
+ con = readl(&cru->clksel_con[14]);
+ div = (con & PERI_HCLK_DIV_MASK) >> PERI_HCLK_DIV_SHIFT;
+ parent = priv->gpll_hz;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong px30_peri_set_clk(struct px30_clk_priv *priv, ulong clk_id,
+ ulong hz)
+{
+ struct px30_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, hz);
+ assert(src_clk_div - 1 <= 31);
+
+ /*
+ * select gpll as pd_peri bus clock source and
+ * set up dependent divisors for HCLK and ACLK clocks.
+ */
+ switch (clk_id) {
+ case ACLK_PERI_PRE:
+ rk_clrsetreg(&cru->clksel_con[14],
+ PERI_PLL_SEL_MASK | PERI_ACLK_DIV_MASK,
+ PERI_PLL_GPLL << PERI_PLL_SEL_SHIFT |
+ (src_clk_div - 1) << PERI_ACLK_DIV_SHIFT);
+ break;
+ case HCLK_PERI_PRE:
+ rk_clrsetreg(&cru->clksel_con[14],
+ PERI_PLL_SEL_MASK | PERI_HCLK_DIV_MASK,
+ PERI_PLL_GPLL << PERI_PLL_SEL_SHIFT |
+ (src_clk_div - 1) << PERI_HCLK_DIV_SHIFT);
+ break;
+ default:
+ printf("do not support this peri freq\n");
+ return -EINVAL;
+ }
+
+ return px30_peri_get_clk(priv, clk_id);
+}
+
+#ifndef CONFIG_SPL_BUILD
+static ulong px30_crypto_get_clk(struct px30_clk_priv *priv, ulong clk_id)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 div, con, parent;
+
+ switch (clk_id) {
+ case SCLK_CRYPTO:
+ con = readl(&cru->clksel_con[25]);
+ div = (con & CRYPTO_DIV_MASK) >> CRYPTO_DIV_SHIFT;
+ parent = priv->gpll_hz;
+ break;
+ case SCLK_CRYPTO_APK:
+ con = readl(&cru->clksel_con[25]);
+ div = (con & CRYPTO_APK_DIV_MASK) >> CRYPTO_APK_DIV_SHIFT;
+ parent = priv->gpll_hz;
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return DIV_TO_RATE(parent, div);
+}
+
+static ulong px30_crypto_set_clk(struct px30_clk_priv *priv, ulong clk_id,
+ ulong hz)
+{
+ struct px30_cru *cru = priv->cru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, hz);
+ assert(src_clk_div - 1 <= 31);
+
+ /*
+ * select gpll as crypto clock source and
+ * set up dependent divisors for crypto clocks.
+ */
+ switch (clk_id) {
+ case SCLK_CRYPTO:
+ rk_clrsetreg(&cru->clksel_con[25],
+ CRYPTO_PLL_SEL_MASK | CRYPTO_DIV_MASK,
+ CRYPTO_PLL_SEL_GPLL << CRYPTO_PLL_SEL_SHIFT |
+ (src_clk_div - 1) << CRYPTO_DIV_SHIFT);
+ break;
+ case SCLK_CRYPTO_APK:
+ rk_clrsetreg(&cru->clksel_con[25],
+ CRYPTO_APK_PLL_SEL_MASK | CRYPTO_APK_DIV_MASK,
+ CRYPTO_PLL_SEL_GPLL << CRYPTO_APK_SEL_SHIFT |
+ (src_clk_div - 1) << CRYPTO_APK_DIV_SHIFT);
+ break;
+ default:
+ printf("do not support this peri freq\n");
+ return -EINVAL;
+ }
+
+ return px30_crypto_get_clk(priv, clk_id);
+}
+
+static ulong px30_i2s1_mclk_get_clk(struct px30_clk_priv *priv, ulong clk_id)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 con;
+
+ con = readl(&cru->clksel_con[30]);
+
+ if (!(con & CLK_I2S1_OUT_SEL_MASK))
+ return -ENOENT;
+
+ return 12000000;
+}
+
+static ulong px30_i2s1_mclk_set_clk(struct px30_clk_priv *priv, ulong clk_id,
+ ulong hz)
+{
+ struct px30_cru *cru = priv->cru;
+
+ if (hz != 12000000) {
+ printf("do not support this i2s1_mclk freq\n");
+ return -EINVAL;
+ }
+
+ rk_clrsetreg(&cru->clksel_con[30], CLK_I2S1_OUT_SEL_MASK,
+ CLK_I2S1_OUT_SEL_OSC);
+ rk_clrsetreg(&cru->clkgate_con[10], CLK_I2S1_OUT_MCLK_PAD_MASK,
+ CLK_I2S1_OUT_MCLK_PAD_ENABLE);
+
+ return px30_i2s1_mclk_get_clk(priv, clk_id);
+}
+
+static ulong px30_mac_set_clk(struct px30_clk_priv *priv, uint hz)
+{
+ struct px30_cru *cru = priv->cru;
+ u32 con = readl(&cru->clksel_con[22]);
+ ulong pll_rate;
+ u8 div;
+
+ if ((con >> GMAC_PLL_SEL_SHIFT) & GMAC_PLL_SEL_CPLL)
+ pll_rate = px30_clk_get_pll_rate(priv, CPLL);
+ else if ((con >> GMAC_PLL_SEL_SHIFT) & GMAC_PLL_SEL_NPLL)
+ pll_rate = px30_clk_get_pll_rate(priv, NPLL);
+ else
+ pll_rate = priv->gpll_hz;
+
+ /*default set 50MHZ for gmac*/
+ if (!hz)
+ hz = 50000000;
+
+ div = DIV_ROUND_UP(pll_rate, hz) - 1;
+ assert(div < 32);
+ rk_clrsetreg(&cru->clksel_con[22], CLK_GMAC_DIV_MASK,
+ div << CLK_GMAC_DIV_SHIFT);
+
+ return DIV_TO_RATE(pll_rate, div);
+}
+
+static int px30_mac_set_speed_clk(struct px30_clk_priv *priv, uint hz)
+{
+ struct px30_cru *cru = priv->cru;
+
+ if (hz != 2500000 && hz != 25000000) {
+ debug("Unsupported mac speed:%d\n", hz);
+ return -EINVAL;
+ }
+
+ rk_clrsetreg(&cru->clksel_con[23], RMII_CLK_SEL_MASK,
+ ((hz == 2500000) ? 0 : 1) << RMII_CLK_SEL_SHIFT);
+
+ return 0;
+}
+
+#endif
+
+static ulong px30_clk_get_pll_rate(struct px30_clk_priv *priv,
+ enum px30_pll_id pll_id)
+{
+ struct px30_cru *cru = priv->cru;
+
+ return rkclk_pll_get_rate(&cru->pll[pll_id], &cru->mode, pll_id);
+}
+
+static ulong px30_clk_set_pll_rate(struct px30_clk_priv *priv,
+ enum px30_pll_id pll_id, ulong hz)
+{
+ struct px30_cru *cru = priv->cru;
+
+ if (rkclk_set_pll(&cru->pll[pll_id], &cru->mode, pll_id, hz))
+ return -EINVAL;
+ return rkclk_pll_get_rate(&cru->pll[pll_id], &cru->mode, pll_id);
+}
+
+static ulong px30_armclk_set_clk(struct px30_clk_priv *priv, ulong hz)
+{
+ struct px30_cru *cru = priv->cru;
+ const struct cpu_rate_table *rate;
+ ulong old_rate;
+
+ rate = get_cpu_settings(hz);
+ if (!rate) {
+ printf("%s unsupport rate\n", __func__);
+ return -EINVAL;
+ }
+
+ /*
+ * select apll as cpu/core clock pll source and
+ * set up dependent divisors for PERI and ACLK clocks.
+ * core hz : apll = 1:1
+ */
+ old_rate = px30_clk_get_pll_rate(priv, APLL);
+ if (old_rate > hz) {
+ if (rkclk_set_pll(&cru->pll[APLL], &cru->mode, APLL, hz))
+ return -EINVAL;
+ rk_clrsetreg(&cru->clksel_con[0],
+ CORE_CLK_PLL_SEL_MASK | CORE_DIV_CON_MASK |
+ CORE_ACLK_DIV_MASK | CORE_DBG_DIV_MASK,
+ rate->aclk_div << CORE_ACLK_DIV_SHIFT |
+ rate->pclk_div << CORE_DBG_DIV_SHIFT |
+ CORE_CLK_PLL_SEL_APLL << CORE_CLK_PLL_SEL_SHIFT |
+ 0 << CORE_DIV_CON_SHIFT);
+ } else if (old_rate < hz) {
+ rk_clrsetreg(&cru->clksel_con[0],
+ CORE_CLK_PLL_SEL_MASK | CORE_DIV_CON_MASK |
+ CORE_ACLK_DIV_MASK | CORE_DBG_DIV_MASK,
+ rate->aclk_div << CORE_ACLK_DIV_SHIFT |
+ rate->pclk_div << CORE_DBG_DIV_SHIFT |
+ CORE_CLK_PLL_SEL_APLL << CORE_CLK_PLL_SEL_SHIFT |
+ 0 << CORE_DIV_CON_SHIFT);
+ if (rkclk_set_pll(&cru->pll[APLL], &cru->mode, APLL, hz))
+ return -EINVAL;
+ }
+
+ return px30_clk_get_pll_rate(priv, APLL);
+}
+
+static ulong px30_clk_get_rate(struct clk *clk)
+{
+ struct px30_clk_priv *priv = dev_get_priv(clk->dev);
+ ulong rate = 0;
+
+ if (!priv->gpll_hz && clk->id > ARMCLK) {
+ printf("%s gpll=%lu\n", __func__, priv->gpll_hz);
+ return -ENOENT;
+ }
+
+ debug("%s %ld\n", __func__, clk->id);
+ switch (clk->id) {
+ case PLL_APLL:
+ rate = px30_clk_get_pll_rate(priv, APLL);
+ break;
+ case PLL_DPLL:
+ rate = px30_clk_get_pll_rate(priv, DPLL);
+ break;
+ case PLL_CPLL:
+ rate = px30_clk_get_pll_rate(priv, CPLL);
+ break;
+ case PLL_NPLL:
+ rate = px30_clk_get_pll_rate(priv, NPLL);
+ break;
+ case ARMCLK:
+ rate = px30_clk_get_pll_rate(priv, APLL);
+ break;
+ case HCLK_SDMMC:
+ case HCLK_EMMC:
+ case SCLK_SDMMC:
+ case SCLK_EMMC:
+ case SCLK_EMMC_SAMPLE:
+ rate = px30_mmc_get_clk(priv, clk->id);
+ break;
+ case SCLK_I2C0:
+ case SCLK_I2C1:
+ case SCLK_I2C2:
+ case SCLK_I2C3:
+ rate = px30_i2c_get_clk(priv, clk->id);
+ break;
+ case SCLK_I2S1:
+ rate = px30_i2s_get_clk(priv, clk->id);
+ break;
+ case SCLK_NANDC:
+ rate = px30_nandc_get_clk(priv);
+ break;
+ case SCLK_PWM0:
+ case SCLK_PWM1:
+ rate = px30_pwm_get_clk(priv, clk->id);
+ break;
+ case SCLK_SARADC:
+ rate = px30_saradc_get_clk(priv);
+ break;
+ case SCLK_TSADC:
+ rate = px30_tsadc_get_clk(priv);
+ break;
+ case SCLK_SPI0:
+ case SCLK_SPI1:
+ rate = px30_spi_get_clk(priv, clk->id);
+ break;
+ case ACLK_VOPB:
+ case ACLK_VOPL:
+ case DCLK_VOPB:
+ case DCLK_VOPL:
+ rate = px30_vop_get_clk(priv, clk->id);
+ break;
+ case ACLK_BUS_PRE:
+ case HCLK_BUS_PRE:
+ case PCLK_BUS_PRE:
+ case PCLK_WDT_NS:
+ rate = px30_bus_get_clk(priv, clk->id);
+ break;
+ case ACLK_PERI_PRE:
+ case HCLK_PERI_PRE:
+ rate = px30_peri_get_clk(priv, clk->id);
+ break;
+#ifndef CONFIG_SPL_BUILD
+ case SCLK_CRYPTO:
+ case SCLK_CRYPTO_APK:
+ rate = px30_crypto_get_clk(priv, clk->id);
+ break;
+#endif
+ default:
+ return -ENOENT;
+ }
+
+ return rate;
+}
+
+static ulong px30_clk_set_rate(struct clk *clk, ulong rate)
+{
+ struct px30_clk_priv *priv = dev_get_priv(clk->dev);
+ ulong ret = 0;
+
+ if (!priv->gpll_hz && clk->id > ARMCLK) {
+ 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_NPLL:
+ ret = px30_clk_set_pll_rate(priv, NPLL, rate);
+ break;
+ case ARMCLK:
+ ret = px30_armclk_set_clk(priv, rate);
+ break;
+ case HCLK_SDMMC:
+ case HCLK_EMMC:
+ case SCLK_SDMMC:
+ case SCLK_EMMC:
+ ret = px30_mmc_set_clk(priv, clk->id, rate);
+ break;
+ case SCLK_I2C0:
+ case SCLK_I2C1:
+ case SCLK_I2C2:
+ case SCLK_I2C3:
+ ret = px30_i2c_set_clk(priv, clk->id, rate);
+ break;
+ case SCLK_I2S1:
+ ret = px30_i2s_set_clk(priv, clk->id, rate);
+ break;
+ case SCLK_NANDC:
+ ret = px30_nandc_set_clk(priv, rate);
+ break;
+ case SCLK_PWM0:
+ case SCLK_PWM1:
+ ret = px30_pwm_set_clk(priv, clk->id, rate);
+ break;
+ case SCLK_SARADC:
+ ret = px30_saradc_set_clk(priv, rate);
+ break;
+ case SCLK_TSADC:
+ ret = px30_tsadc_set_clk(priv, rate);
+ break;
+ case SCLK_SPI0:
+ case SCLK_SPI1:
+ ret = px30_spi_set_clk(priv, clk->id, rate);
+ break;
+ case ACLK_VOPB:
+ case ACLK_VOPL:
+ case DCLK_VOPB:
+ case DCLK_VOPL:
+ ret = px30_vop_set_clk(priv, clk->id, rate);
+ break;
+ case ACLK_BUS_PRE:
+ case HCLK_BUS_PRE:
+ case PCLK_BUS_PRE:
+ ret = px30_bus_set_clk(priv, clk->id, rate);
+ break;
+ case ACLK_PERI_PRE:
+ case HCLK_PERI_PRE:
+ ret = px30_peri_set_clk(priv, clk->id, rate);
+ break;
+#ifndef CONFIG_SPL_BUILD
+ case SCLK_CRYPTO:
+ case SCLK_CRYPTO_APK:
+ ret = px30_crypto_set_clk(priv, clk->id, rate);
+ break;
+ case SCLK_I2S1_OUT:
+ ret = px30_i2s1_mclk_set_clk(priv, clk->id, rate);
+ break;
+ case SCLK_GMAC:
+ case SCLK_GMAC_SRC:
+ ret = px30_mac_set_clk(priv, rate);
+ break;
+ case SCLK_GMAC_RMII:
+ ret = px30_mac_set_speed_clk(priv, rate);
+ break;
+#endif
+ default:
+ return -ENOENT;
+ }
+
+ return ret;
+}
+
+#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
+static int px30_gmac_set_parent(struct clk *clk, struct clk *parent)
+{
+ struct px30_clk_priv *priv = dev_get_priv(clk->dev);
+ struct px30_cru *cru = priv->cru;
+
+ if (parent->id == SCLK_GMAC_SRC) {
+ debug("%s: switching GAMC to SCLK_GMAC_SRC\n", __func__);
+ rk_clrsetreg(&cru->clksel_con[23], RMII_EXTCLK_SEL_MASK,
+ RMII_EXTCLK_SEL_INT << RMII_EXTCLK_SEL_SHIFT);
+ } else {
+ debug("%s: switching GMAC to external clock\n", __func__);
+ rk_clrsetreg(&cru->clksel_con[23], RMII_EXTCLK_SEL_MASK,
+ RMII_EXTCLK_SEL_EXT << RMII_EXTCLK_SEL_SHIFT);
+ }
+ return 0;
+}
+
+static int px30_clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ switch (clk->id) {
+ case SCLK_GMAC:
+ return px30_gmac_set_parent(clk, parent);
+ default:
+ return -ENOENT;
+ }
+}
+#endif
+
+static int px30_clk_enable(struct clk *clk)
+{
+ switch (clk->id) {
+ case HCLK_HOST:
+ case SCLK_GMAC:
+ case SCLK_GMAC_RX_TX:
+ case SCLK_MAC_REF:
+ case SCLK_MAC_REFOUT:
+ case ACLK_GMAC:
+ case PCLK_GMAC:
+ case SCLK_GMAC_RMII:
+ /* Required to successfully probe the Designware GMAC driver */
+ return 0;
+ }
+
+ debug("%s: unsupported clk %ld\n", __func__, clk->id);
+ return -ENOENT;
+}
+
+static struct clk_ops px30_clk_ops = {
+ .get_rate = px30_clk_get_rate,
+ .set_rate = px30_clk_set_rate,
+#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
+ .set_parent = px30_clk_set_parent,
+#endif
+ .enable = px30_clk_enable,
+};
+
+static void px30_clk_init(struct px30_clk_priv *priv)
+{
+ ulong npll_hz;
+ int ret;
+
+ npll_hz = px30_clk_get_pll_rate(priv, NPLL);
+ if (npll_hz != NPLL_HZ) {
+ ret = px30_clk_set_pll_rate(priv, NPLL, NPLL_HZ);
+ if (ret < 0)
+ printf("%s failed to set npll rate\n", __func__);
+ }
+
+ px30_bus_set_clk(priv, ACLK_BUS_PRE, ACLK_BUS_HZ);
+ px30_bus_set_clk(priv, HCLK_BUS_PRE, HCLK_BUS_HZ);
+ px30_bus_set_clk(priv, PCLK_BUS_PRE, PCLK_BUS_HZ);
+ px30_peri_set_clk(priv, ACLK_PERI_PRE, ACLK_PERI_HZ);
+ px30_peri_set_clk(priv, HCLK_PERI_PRE, HCLK_PERI_HZ);
+}
+
+static int px30_clk_probe(struct udevice *dev)
+{
+ struct px30_clk_priv *priv = dev_get_priv(dev);
+ struct clk clk_gpll;
+ int ret;
+
+ if (px30_clk_get_pll_rate(priv, APLL) != APLL_HZ)
+ px30_armclk_set_clk(priv, APLL_HZ);
+
+ /* get the GPLL rate from the pmucru */
+ ret = clk_get_by_name(dev, "gpll", &clk_gpll);
+ if (ret) {
+ printf("%s: failed to get gpll clk from pmucru\n", __func__);
+ return ret;
+ }
+
+ priv->gpll_hz = clk_get_rate(&clk_gpll);
+
+ px30_clk_init(priv);
+
+ return 0;
+}
+
+static int px30_clk_ofdata_to_platdata(struct udevice *dev)
+{
+ struct px30_clk_priv *priv = dev_get_priv(dev);
+
+ priv->cru = dev_read_addr_ptr(dev);
+
+ return 0;
+}
+
+static int px30_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 px30_cru,
+ glb_srst_fst);
+ priv->glb_srst_snd_value = offsetof(struct px30_cru,
+ glb_srst_snd);
+ sys_child->priv = priv;
+ }
+
+#if CONFIG_IS_ENABLED(RESET_ROCKCHIP)
+ ret = offsetof(struct px30_cru, softrst_con[0]);
+ ret = rockchip_reset_bind(dev, ret, 12);
+ if (ret)
+ debug("Warning: software reset driver bind faile\n");
+#endif
+
+ return 0;
+}
+
+static const struct udevice_id px30_clk_ids[] = {
+ { .compatible = "rockchip,px30-cru" },
+ { }
+};
+
+U_BOOT_DRIVER(rockchip_px30_cru) = {
+ .name = "rockchip_px30_cru",
+ .id = UCLASS_CLK,
+ .of_match = px30_clk_ids,
+ .priv_auto_alloc_size = sizeof(struct px30_clk_priv),
+ .ofdata_to_platdata = px30_clk_ofdata_to_platdata,
+ .ops = &px30_clk_ops,
+ .bind = px30_clk_bind,
+ .probe = px30_clk_probe,
+};
+
+static ulong px30_pclk_pmu_get_pmuclk(struct px30_pmuclk_priv *priv)
+{
+ struct px30_pmucru *pmucru = priv->pmucru;
+ u32 div, con;
+
+ con = readl(&pmucru->pmu_clksel_con[0]);
+ div = (con & CLK_PMU_PCLK_DIV_MASK) >> CLK_PMU_PCLK_DIV_SHIFT;
+
+ return DIV_TO_RATE(priv->gpll_hz, div);
+}
+
+static ulong px30_pclk_pmu_set_pmuclk(struct px30_pmuclk_priv *priv, ulong hz)
+{
+ struct px30_pmucru *pmucru = priv->pmucru;
+ int src_clk_div;
+
+ src_clk_div = DIV_ROUND_UP(priv->gpll_hz, hz);
+ assert(src_clk_div - 1 <= 31);
+
+ rk_clrsetreg(&pmucru->pmu_clksel_con[0],
+ CLK_PMU_PCLK_DIV_MASK,
+ (src_clk_div - 1) << CLK_PMU_PCLK_DIV_SHIFT);
+
+ return px30_pclk_pmu_get_pmuclk(priv);
+}
+
+static ulong px30_pmuclk_get_gpll_rate(struct px30_pmuclk_priv *priv)
+{
+ struct px30_pmucru *pmucru = priv->pmucru;
+
+ return rkclk_pll_get_rate(&pmucru->pll, &pmucru->pmu_mode, GPLL);
+}
+
+static ulong px30_pmuclk_set_gpll_rate(struct px30_pmuclk_priv *priv, ulong hz)
+{
+ struct px30_pmucru *pmucru = priv->pmucru;
+ ulong pclk_pmu_rate;
+ u32 div;
+
+ if (priv->gpll_hz == hz)
+ return priv->gpll_hz;
+
+ div = DIV_ROUND_UP(hz, priv->gpll_hz);
+
+ /* save clock rate */
+ pclk_pmu_rate = px30_pclk_pmu_get_pmuclk(priv);
+
+ /* avoid rate too large, reduce rate first */
+ px30_pclk_pmu_set_pmuclk(priv, pclk_pmu_rate / div);
+
+ /* change gpll rate */
+ rkclk_set_pll(&pmucru->pll, &pmucru->pmu_mode, GPLL, hz);
+ priv->gpll_hz = px30_pmuclk_get_gpll_rate(priv);
+
+ /* restore clock rate */
+ px30_pclk_pmu_set_pmuclk(priv, pclk_pmu_rate);
+
+ return priv->gpll_hz;
+}
+
+static ulong px30_pmuclk_get_rate(struct clk *clk)
+{
+ struct px30_pmuclk_priv *priv = dev_get_priv(clk->dev);
+ ulong rate = 0;
+
+ debug("%s %ld\n", __func__, clk->id);
+ switch (clk->id) {
+ case PLL_GPLL:
+ rate = px30_pmuclk_get_gpll_rate(priv);
+ break;
+ case PCLK_PMU_PRE:
+ rate = px30_pclk_pmu_get_pmuclk(priv);
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return rate;
+}
+
+static ulong px30_pmuclk_set_rate(struct clk *clk, ulong rate)
+{
+ struct px30_pmuclk_priv *priv = dev_get_priv(clk->dev);
+ ulong ret = 0;
+
+ debug("%s %ld %ld\n", __func__, clk->id, rate);
+ switch (clk->id) {
+ case PLL_GPLL:
+ ret = px30_pmuclk_set_gpll_rate(priv, rate);
+ break;
+ case PCLK_PMU_PRE:
+ ret = px30_pclk_pmu_set_pmuclk(priv, rate);
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return ret;
+}
+
+static struct clk_ops px30_pmuclk_ops = {
+ .get_rate = px30_pmuclk_get_rate,
+ .set_rate = px30_pmuclk_set_rate,
+};
+
+static void px30_pmuclk_init(struct px30_pmuclk_priv *priv)
+{
+ priv->gpll_hz = px30_pmuclk_get_gpll_rate(priv);
+ px30_pmuclk_set_gpll_rate(priv, GPLL_HZ);
+
+ px30_pclk_pmu_set_pmuclk(priv, PCLK_PMU_HZ);
+}
+
+static int px30_pmuclk_probe(struct udevice *dev)
+{
+ struct px30_pmuclk_priv *priv = dev_get_priv(dev);
+
+ px30_pmuclk_init(priv);
+
+ return 0;
+}
+
+static int px30_pmuclk_ofdata_to_platdata(struct udevice *dev)
+{
+ struct px30_pmuclk_priv *priv = dev_get_priv(dev);
+
+ priv->pmucru = dev_read_addr_ptr(dev);
+
+ return 0;
+}
+
+static const struct udevice_id px30_pmuclk_ids[] = {
+ { .compatible = "rockchip,px30-pmucru" },
+ { }
+};
+
+U_BOOT_DRIVER(rockchip_px30_pmucru) = {
+ .name = "rockchip_px30_pmucru",
+ .id = UCLASS_CLK,
+ .of_match = px30_pmuclk_ids,
+ .priv_auto_alloc_size = sizeof(struct px30_pmuclk_priv),
+ .ofdata_to_platdata = px30_pmuclk_ofdata_to_platdata,
+ .ops = &px30_pmuclk_ops,
+ .probe = px30_pmuclk_probe,
+};