diff options
author | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
---|---|---|
committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/drivers/clk/rockchip/clk_rv1108.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/drivers/clk/rockchip/clk_rv1108.c')
-rw-r--r-- | roms/u-boot/drivers/clk/rockchip/clk_rv1108.c | 729 |
1 files changed, 729 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/clk/rockchip/clk_rv1108.c b/roms/u-boot/drivers/clk/rockchip/clk_rv1108.c new file mode 100644 index 000000000..555155b16 --- /dev/null +++ b/roms/u-boot/drivers/clk/rockchip/clk_rv1108.c @@ -0,0 +1,729 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * (C) Copyright 2016 Rockchip Electronics Co., Ltd + * Author: Andy Yan <andy.yan@rock-chips.com> + */ + +#include <common.h> +#include <bitfield.h> +#include <clk-uclass.h> +#include <dm.h> +#include <errno.h> +#include <log.h> +#include <malloc.h> +#include <syscon.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/arch-rockchip/clock.h> +#include <asm/arch-rockchip/cru_rv1108.h> +#include <asm/arch-rockchip/hardware.h> +#include <dm/device-internal.h> +#include <dm/lists.h> +#include <dt-bindings/clock/rv1108-cru.h> +#include <linux/delay.h> +#include <linux/stringify.h> + +DECLARE_GLOBAL_DATA_PTR; + +enum { + VCO_MAX_HZ = 2400U * 1000000, + VCO_MIN_HZ = 600 * 1000000, + OUTPUT_MAX_HZ = 2400U * 1000000, + OUTPUT_MIN_HZ = 24 * 1000000, +}; + +#define DIV_TO_RATE(input_rate, div) ((input_rate) / ((div) + 1)) + +#define PLL_DIVISORS(hz, _refdiv, _postdiv1, _postdiv2) {\ + .refdiv = _refdiv,\ + .fbdiv = (u32)((u64)hz * _refdiv * _postdiv1 * _postdiv2 / OSC_HZ),\ + .postdiv1 = _postdiv1, .postdiv2 = _postdiv2};\ + _Static_assert(((u64)hz * _refdiv * _postdiv1 * _postdiv2 / OSC_HZ) *\ + OSC_HZ / (_refdiv * _postdiv1 * _postdiv2) == hz,\ + #hz "Hz cannot be hit with PLL "\ + "divisors on line " __stringify(__LINE__)); + +static const struct pll_div apll_init_cfg = PLL_DIVISORS(APLL_HZ, 1, 3, 1); +static const struct pll_div gpll_init_cfg = PLL_DIVISORS(GPLL_HZ, 2, 2, 1); + +/* use integer mode */ +static inline int rv1108_pll_id(enum rk_clk_id clk_id) +{ + int id = 0; + + switch (clk_id) { + case CLK_ARM: + case CLK_DDR: + id = clk_id - 1; + break; + case CLK_GENERAL: + id = 2; + break; + default: + printf("invalid pll id:%d\n", clk_id); + id = -1; + break; + } + + return id; +} + +static int rkclk_set_pll(struct rv1108_cru *cru, enum rk_clk_id clk_id, + const struct pll_div *div) +{ + int pll_id = rv1108_pll_id(clk_id); + struct rv1108_pll *pll = &cru->pll[pll_id]; + + /* All PLLs have same VCO and output frequency range restrictions. */ + uint vco_hz = OSC_HZ / 1000 * div->fbdiv / div->refdiv * 1000; + uint output_hz = vco_hz / div->postdiv1 / div->postdiv2; + + debug("PLL at %p: fb=%d, ref=%d, pst1=%d, pst2=%d, vco=%u Hz, output=%u Hz\n", + pll, div->fbdiv, div->refdiv, div->postdiv1, + div->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(&pll->con3, WORK_MODE_MASK, + WORK_MODE_SLOW << WORK_MODE_SHIFT); + + /* use integer mode */ + rk_setreg(&pll->con3, 1 << DSMPD_SHIFT); + /* Power down */ + rk_setreg(&pll->con3, 1 << GLOBAL_POWER_DOWN_SHIFT); + + rk_clrsetreg(&pll->con0, FBDIV_MASK, div->fbdiv << FBDIV_SHIFT); + rk_clrsetreg(&pll->con1, POSTDIV1_MASK | POSTDIV2_MASK | REFDIV_MASK, + (div->postdiv1 << POSTDIV1_SHIFT | + div->postdiv2 << POSTDIV2_SHIFT | + div->refdiv << REFDIV_SHIFT)); + rk_clrsetreg(&pll->con2, FRACDIV_MASK, + (div->refdiv << REFDIV_SHIFT)); + + /* Power Up */ + rk_clrreg(&pll->con3, 1 << GLOBAL_POWER_DOWN_SHIFT); + + /* waiting for pll lock */ + while (readl(&pll->con2) & (1 << LOCK_STA_SHIFT)) + udelay(1); + + /* + * set PLL into normal mode. + */ + rk_clrsetreg(&pll->con3, WORK_MODE_MASK, + WORK_MODE_NORMAL << WORK_MODE_SHIFT); + + return 0; +} + +static uint32_t rkclk_pll_get_rate(struct rv1108_cru *cru, + enum rk_clk_id clk_id) +{ + uint32_t refdiv, fbdiv, postdiv1, postdiv2; + uint32_t con0, con1, con3; + int pll_id = rv1108_pll_id(clk_id); + struct rv1108_pll *pll = &cru->pll[pll_id]; + uint32_t freq; + + con3 = readl(&pll->con3); + + if (con3 & WORK_MODE_MASK) { + con0 = readl(&pll->con0); + con1 = readl(&pll->con1); + fbdiv = (con0 >> FBDIV_SHIFT) & FBDIV_MASK; + postdiv1 = (con1 & POSTDIV1_MASK) >> POSTDIV1_SHIFT; + postdiv2 = (con1 & POSTDIV2_MASK) >> POSTDIV2_SHIFT; + refdiv = (con1 >> REFDIV_SHIFT) & REFDIV_MASK; + freq = (24 * fbdiv / (refdiv * postdiv1 * postdiv2)) * 1000000; + } else { + freq = OSC_HZ; + } + + return freq; +} + +static int rv1108_mac_set_clk(struct rv1108_cru *cru, ulong rate) +{ + uint32_t con = readl(&cru->clksel_con[24]); + ulong pll_rate; + uint8_t div; + + if ((con >> MAC_PLL_SEL_SHIFT) & MAC_PLL_SEL_GPLL) + pll_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + else + pll_rate = rkclk_pll_get_rate(cru, CLK_ARM); + + /*default set 50MHZ for gmac*/ + if (!rate) + rate = 50000000; + + div = DIV_ROUND_UP(pll_rate, rate) - 1; + if (div <= 0x1f) + rk_clrsetreg(&cru->clksel_con[24], MAC_CLK_DIV_MASK, + div << MAC_CLK_DIV_SHIFT); + else + debug("Unsupported div for gmac:%d\n", div); + + return DIV_TO_RATE(pll_rate, div); +} + +static int rv1108_sfc_set_clk(struct rv1108_cru *cru, uint rate) +{ + u32 con = readl(&cru->clksel_con[27]); + u32 pll_rate; + u32 div; + + if ((con >> SFC_PLL_SEL_SHIFT) && SFC_PLL_SEL_GPLL) + pll_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + else + pll_rate = rkclk_pll_get_rate(cru, CLK_DDR); + + div = DIV_ROUND_UP(pll_rate, rate) - 1; + if (div <= 0x3f) + rk_clrsetreg(&cru->clksel_con[27], SFC_CLK_DIV_MASK, + div << SFC_CLK_DIV_SHIFT); + else + debug("Unsupported sfc clk rate:%d\n", rate); + + return DIV_TO_RATE(pll_rate, div); +} + +static ulong rv1108_saradc_get_clk(struct rv1108_cru *cru) +{ + u32 div, val; + + val = readl(&cru->clksel_con[22]); + div = bitfield_extract(val, CLK_SARADC_DIV_CON_SHIFT, + CLK_SARADC_DIV_CON_WIDTH); + + return DIV_TO_RATE(OSC_HZ, div); +} + +static ulong rv1108_saradc_set_clk(struct rv1108_cru *cru, uint hz) +{ + int src_clk_div; + + src_clk_div = DIV_ROUND_UP(OSC_HZ, hz) - 1; + assert(src_clk_div < 128); + + rk_clrsetreg(&cru->clksel_con[22], + CLK_SARADC_DIV_CON_MASK, + src_clk_div << CLK_SARADC_DIV_CON_SHIFT); + + return rv1108_saradc_get_clk(cru); +} + +static ulong rv1108_aclk_vio1_get_clk(struct rv1108_cru *cru) +{ + u32 div, val; + + val = readl(&cru->clksel_con[28]); + div = bitfield_extract(val, ACLK_VIO1_CLK_DIV_SHIFT, + CLK_VIO_DIV_CON_WIDTH); + + return DIV_TO_RATE(GPLL_HZ, div); +} + +static ulong rv1108_aclk_vio1_set_clk(struct rv1108_cru *cru, uint hz) +{ + int src_clk_div; + + src_clk_div = DIV_ROUND_UP(GPLL_HZ, hz) - 1; + assert(src_clk_div < 32); + + rk_clrsetreg(&cru->clksel_con[28], + ACLK_VIO1_CLK_DIV_MASK | ACLK_VIO1_PLL_SEL_MASK, + (src_clk_div << ACLK_VIO1_CLK_DIV_SHIFT) | + (VIO_PLL_SEL_GPLL << ACLK_VIO1_PLL_SEL_SHIFT)); + + return rv1108_aclk_vio1_get_clk(cru); +} + +static ulong rv1108_aclk_vio0_get_clk(struct rv1108_cru *cru) +{ + u32 div, val; + + val = readl(&cru->clksel_con[28]); + div = bitfield_extract(val, ACLK_VIO0_CLK_DIV_SHIFT, + CLK_VIO_DIV_CON_WIDTH); + + return DIV_TO_RATE(GPLL_HZ, div); +} + +static ulong rv1108_aclk_vio0_set_clk(struct rv1108_cru *cru, uint hz) +{ + int src_clk_div; + + src_clk_div = DIV_ROUND_UP(GPLL_HZ, hz) - 1; + assert(src_clk_div < 32); + + rk_clrsetreg(&cru->clksel_con[28], + ACLK_VIO0_CLK_DIV_MASK | ACLK_VIO0_PLL_SEL_MASK, + (src_clk_div << ACLK_VIO0_CLK_DIV_SHIFT) | + (VIO_PLL_SEL_GPLL << ACLK_VIO0_PLL_SEL_SHIFT)); + + /*HCLK_VIO default div = 4*/ + rk_clrsetreg(&cru->clksel_con[29], + HCLK_VIO_CLK_DIV_MASK, + 3 << HCLK_VIO_CLK_DIV_SHIFT); + /*PCLK_VIO default div = 4*/ + rk_clrsetreg(&cru->clksel_con[29], + PCLK_VIO_CLK_DIV_MASK, + 3 << PCLK_VIO_CLK_DIV_SHIFT); + + return rv1108_aclk_vio0_get_clk(cru); +} + +static ulong rv1108_dclk_vop_get_clk(struct rv1108_cru *cru) +{ + u32 div, val; + + val = readl(&cru->clksel_con[32]); + div = bitfield_extract(val, DCLK_VOP_CLK_DIV_SHIFT, + DCLK_VOP_DIV_CON_WIDTH); + + return DIV_TO_RATE(GPLL_HZ, div); +} + +static ulong rv1108_dclk_vop_set_clk(struct rv1108_cru *cru, uint hz) +{ + int src_clk_div; + + src_clk_div = DIV_ROUND_UP(GPLL_HZ, hz) - 1; + assert(src_clk_div < 64); + + rk_clrsetreg(&cru->clksel_con[32], + DCLK_VOP_CLK_DIV_MASK | DCLK_VOP_PLL_SEL_MASK | + DCLK_VOP_SEL_SHIFT, + (src_clk_div << DCLK_VOP_CLK_DIV_SHIFT) | + (DCLK_VOP_PLL_SEL_GPLL << DCLK_VOP_PLL_SEL_SHIFT) | + (DCLK_VOP_SEL_PLL << DCLK_VOP_SEL_SHIFT)); + + return rv1108_dclk_vop_get_clk(cru); +} + +static ulong rv1108_aclk_bus_get_clk(struct rv1108_cru *cru) +{ + u32 div, val; + ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + + val = readl(&cru->clksel_con[2]); + div = bitfield_extract(val, ACLK_BUS_DIV_CON_SHIFT, + ACLK_BUS_DIV_CON_WIDTH); + + return DIV_TO_RATE(parent_rate, div); +} + +static ulong rv1108_aclk_bus_set_clk(struct rv1108_cru *cru, uint hz) +{ + int src_clk_div; + ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + + src_clk_div = DIV_ROUND_UP(parent_rate, hz) - 1; + assert(src_clk_div < 32); + + rk_clrsetreg(&cru->clksel_con[2], + ACLK_BUS_DIV_CON_MASK | ACLK_BUS_PLL_SEL_MASK, + (src_clk_div << ACLK_BUS_DIV_CON_SHIFT) | + (ACLK_BUS_PLL_SEL_GPLL << ACLK_BUS_PLL_SEL_SHIFT)); + + return rv1108_aclk_bus_get_clk(cru); +} + +static ulong rv1108_aclk_peri_get_clk(struct rv1108_cru *cru) +{ + u32 div, val; + ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + + val = readl(&cru->clksel_con[23]); + div = bitfield_extract(val, ACLK_PERI_DIV_CON_SHIFT, + PERI_DIV_CON_WIDTH); + + return DIV_TO_RATE(parent_rate, div); +} + +static ulong rv1108_hclk_peri_get_clk(struct rv1108_cru *cru) +{ + u32 div, val; + ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + + val = readl(&cru->clksel_con[23]); + div = bitfield_extract(val, HCLK_PERI_DIV_CON_SHIFT, + PERI_DIV_CON_WIDTH); + + return DIV_TO_RATE(parent_rate, div); +} + +static ulong rv1108_pclk_peri_get_clk(struct rv1108_cru *cru) +{ + u32 div, val; + ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + + val = readl(&cru->clksel_con[23]); + div = bitfield_extract(val, PCLK_PERI_DIV_CON_SHIFT, + PERI_DIV_CON_WIDTH); + + return DIV_TO_RATE(parent_rate, div); +} + +static ulong rv1108_aclk_peri_set_clk(struct rv1108_cru *cru, uint hz) +{ + int src_clk_div; + ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + + src_clk_div = DIV_ROUND_UP(parent_rate, hz) - 1; + assert(src_clk_div < 32); + + rk_clrsetreg(&cru->clksel_con[23], + ACLK_PERI_DIV_CON_MASK | ACLK_PERI_PLL_SEL_MASK, + (src_clk_div << ACLK_PERI_DIV_CON_SHIFT) | + (ACLK_PERI_PLL_SEL_GPLL << ACLK_PERI_PLL_SEL_SHIFT)); + + return rv1108_aclk_peri_get_clk(cru); +} + +static ulong rv1108_hclk_peri_set_clk(struct rv1108_cru *cru, uint hz) +{ + int src_clk_div; + ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + + src_clk_div = DIV_ROUND_UP(parent_rate, hz) - 1; + assert(src_clk_div < 32); + + rk_clrsetreg(&cru->clksel_con[23], + HCLK_PERI_DIV_CON_MASK, + (src_clk_div << HCLK_PERI_DIV_CON_SHIFT)); + + return rv1108_hclk_peri_get_clk(cru); +} + +static ulong rv1108_pclk_peri_set_clk(struct rv1108_cru *cru, uint hz) +{ + int src_clk_div; + ulong parent_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + + src_clk_div = DIV_ROUND_UP(parent_rate, hz) - 1; + assert(src_clk_div < 32); + + rk_clrsetreg(&cru->clksel_con[23], + PCLK_PERI_DIV_CON_MASK, + (src_clk_div << PCLK_PERI_DIV_CON_SHIFT)); + + return rv1108_pclk_peri_get_clk(cru); +} + +static ulong rv1108_i2c_get_clk(struct rv1108_cru *cru, ulong clk_id) +{ + u32 div, con; + + switch (clk_id) { + case SCLK_I2C0_PMU: + con = readl(&cru->clksel_con[19]); + div = bitfield_extract(con, CLK_I2C0_DIV_CON_SHIFT, + I2C_DIV_CON_WIDTH); + break; + case SCLK_I2C1: + con = readl(&cru->clksel_con[19]); + div = bitfield_extract(con, CLK_I2C1_DIV_CON_SHIFT, + I2C_DIV_CON_WIDTH); + break; + case SCLK_I2C2: + con = readl(&cru->clksel_con[20]); + div = bitfield_extract(con, CLK_I2C2_DIV_CON_SHIFT, + I2C_DIV_CON_WIDTH); + break; + case SCLK_I2C3: + con = readl(&cru->clksel_con[20]); + div = bitfield_extract(con, CLK_I2C3_DIV_CON_SHIFT, + I2C_DIV_CON_WIDTH); + break; + default: + printf("do not support this i2c bus\n"); + return -EINVAL; + } + + return DIV_TO_RATE(GPLL_HZ, div); +} + +static ulong rv1108_i2c_set_clk(struct rv1108_cru *cru, ulong clk_id, uint hz) +{ + int src_clk_div; + + /* i2c0,4,8 src clock from ppll, i2c1,2,3,5,6,7 src clock from gpll*/ + src_clk_div = GPLL_HZ / hz; + assert(src_clk_div - 1 <= 127); + + switch (clk_id) { + case SCLK_I2C0_PMU: + rk_clrsetreg(&cru->clksel_con[19], + CLK_I2C0_DIV_CON_MASK | CLK_I2C1_PLL_SEL_MASK, + (src_clk_div << CLK_I2C0_DIV_CON_SHIFT) | + (CLK_I2C1_PLL_SEL_GPLL << CLK_I2C1_PLL_SEL_SHIFT)); + break; + case SCLK_I2C1: + rk_clrsetreg(&cru->clksel_con[19], + CLK_I2C1_DIV_CON_MASK | CLK_I2C1_PLL_SEL_MASK, + (src_clk_div << CLK_I2C1_DIV_CON_SHIFT) | + (CLK_I2C1_PLL_SEL_GPLL << CLK_I2C1_PLL_SEL_SHIFT)); + break; + case SCLK_I2C2: + rk_clrsetreg(&cru->clksel_con[20], + CLK_I2C2_DIV_CON_MASK | CLK_I2C3_PLL_SEL_MASK, + (src_clk_div << CLK_I2C2_DIV_CON_SHIFT) | + (CLK_I2C3_PLL_SEL_GPLL << CLK_I2C3_PLL_SEL_SHIFT)); + break; + case SCLK_I2C3: + rk_clrsetreg(&cru->clksel_con[20], + CLK_I2C3_DIV_CON_MASK | CLK_I2C3_PLL_SEL_MASK, + (src_clk_div << CLK_I2C3_DIV_CON_SHIFT) | + (CLK_I2C3_PLL_SEL_GPLL << CLK_I2C3_PLL_SEL_SHIFT)); + break; + default: + printf("do not support this i2c bus\n"); + return -EINVAL; + } + + return rv1108_i2c_get_clk(cru, clk_id); +} + +static ulong rv1108_mmc_get_clk(struct rv1108_cru *cru) +{ + u32 div, con; + ulong mmc_clk; + + con = readl(&cru->clksel_con[26]); + div = bitfield_extract(con, EMMC_CLK_DIV_SHIFT, 8); + + con = readl(&cru->clksel_con[25]); + + if ((con & EMMC_PLL_SEL_MASK) >> EMMC_PLL_SEL_SHIFT == EMMC_PLL_SEL_OSC) + mmc_clk = DIV_TO_RATE(OSC_HZ, div) / 2; + else + mmc_clk = DIV_TO_RATE(GPLL_HZ, div) / 2; + + debug("%s div %d get_clk %ld\n", __func__, div, mmc_clk); + return mmc_clk; +} + +static ulong rv1108_mmc_set_clk(struct rv1108_cru *cru, ulong rate) +{ + int div; + u32 pll_rate; + + div = DIV_ROUND_UP(rkclk_pll_get_rate(cru, CLK_GENERAL), rate); + + if (div < 127) { + debug("%s source gpll\n", __func__); + rk_clrsetreg(&cru->clksel_con[25], EMMC_PLL_SEL_MASK, + (EMMC_PLL_SEL_GPLL << EMMC_PLL_SEL_SHIFT)); + pll_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + } else { + debug("%s source 24m\n", __func__); + rk_clrsetreg(&cru->clksel_con[25], EMMC_PLL_SEL_MASK, + (EMMC_PLL_SEL_OSC << EMMC_PLL_SEL_SHIFT)); + pll_rate = OSC_HZ; + } + + div = DIV_ROUND_UP(pll_rate / 2, rate); + rk_clrsetreg(&cru->clksel_con[26], EMMC_CLK_DIV_MASK, + ((div - 1) << EMMC_CLK_DIV_SHIFT)); + + debug("%s set_rate %ld div %d\n", __func__, rate, div); + + return DIV_TO_RATE(pll_rate, div); +} + +static ulong rv1108_clk_get_rate(struct clk *clk) +{ + struct rv1108_clk_priv *priv = dev_get_priv(clk->dev); + + switch (clk->id) { + case 0 ... 63: + return rkclk_pll_get_rate(priv->cru, clk->id); + case SCLK_SARADC: + return rv1108_saradc_get_clk(priv->cru); + case ACLK_VIO0: + return rv1108_aclk_vio0_get_clk(priv->cru); + case ACLK_VIO1: + return rv1108_aclk_vio1_get_clk(priv->cru); + case DCLK_VOP: + return rv1108_dclk_vop_get_clk(priv->cru); + case ACLK_PRE: + return rv1108_aclk_bus_get_clk(priv->cru); + case ACLK_PERI: + return rv1108_aclk_peri_get_clk(priv->cru); + case HCLK_PERI: + return rv1108_hclk_peri_get_clk(priv->cru); + case PCLK_PERI: + return rv1108_pclk_peri_get_clk(priv->cru); + case SCLK_I2C0_PMU: + case SCLK_I2C1: + case SCLK_I2C2: + case SCLK_I2C3: + return rv1108_i2c_get_clk(priv->cru, clk->id); + case HCLK_EMMC: + case SCLK_EMMC: + case SCLK_EMMC_SAMPLE: + return rv1108_mmc_get_clk(priv->cru); + default: + return -ENOENT; + } +} + +static ulong rv1108_clk_set_rate(struct clk *clk, ulong rate) +{ + struct rv1108_clk_priv *priv = dev_get_priv(clk->dev); + ulong new_rate; + + switch (clk->id) { + case SCLK_MAC: + new_rate = rv1108_mac_set_clk(priv->cru, rate); + break; + case SCLK_SFC: + new_rate = rv1108_sfc_set_clk(priv->cru, rate); + break; + case SCLK_SARADC: + new_rate = rv1108_saradc_set_clk(priv->cru, rate); + break; + case ACLK_VIO0: + new_rate = rv1108_aclk_vio0_set_clk(priv->cru, rate); + break; + case ACLK_VIO1: + new_rate = rv1108_aclk_vio1_set_clk(priv->cru, rate); + break; + case DCLK_VOP: + new_rate = rv1108_dclk_vop_set_clk(priv->cru, rate); + break; + case ACLK_PRE: + new_rate = rv1108_aclk_bus_set_clk(priv->cru, rate); + break; + case ACLK_PERI: + new_rate = rv1108_aclk_peri_set_clk(priv->cru, rate); + break; + case HCLK_PERI: + new_rate = rv1108_hclk_peri_set_clk(priv->cru, rate); + break; + case PCLK_PERI: + new_rate = rv1108_pclk_peri_set_clk(priv->cru, rate); + break; + case SCLK_I2C0_PMU: + case SCLK_I2C1: + case SCLK_I2C2: + case SCLK_I2C3: + new_rate = rv1108_i2c_set_clk(priv->cru, clk->id, rate); + break; + case HCLK_EMMC: + case SCLK_EMMC: + new_rate = rv1108_mmc_set_clk(priv->cru, rate); + break; + default: + return -ENOENT; + } + + return new_rate; +} + +static const struct clk_ops rv1108_clk_ops = { + .get_rate = rv1108_clk_get_rate, + .set_rate = rv1108_clk_set_rate, +}; + +static void rkclk_init(struct rv1108_cru *cru) +{ + unsigned int apll, dpll, gpll; + unsigned int aclk_bus, aclk_peri, hclk_peri, pclk_peri; + + aclk_bus = rv1108_aclk_bus_set_clk(cru, ACLK_BUS_HZ / 2); + aclk_peri = rv1108_aclk_peri_set_clk(cru, ACLK_PERI_HZ / 2); + hclk_peri = rv1108_hclk_peri_set_clk(cru, HCLK_PERI_HZ / 2); + pclk_peri = rv1108_pclk_peri_set_clk(cru, PCLK_PERI_HZ / 2); + rv1108_aclk_vio0_set_clk(cru, 297000000); + rv1108_aclk_vio1_set_clk(cru, 297000000); + + /* configure apll */ + rkclk_set_pll(cru, CLK_ARM, &apll_init_cfg); + rkclk_set_pll(cru, CLK_GENERAL, &gpll_init_cfg); + aclk_bus = rv1108_aclk_bus_set_clk(cru, ACLK_BUS_HZ); + aclk_peri = rv1108_aclk_peri_set_clk(cru, ACLK_PERI_HZ); + hclk_peri = rv1108_hclk_peri_set_clk(cru, HCLK_PERI_HZ); + pclk_peri = rv1108_pclk_peri_set_clk(cru, PCLK_PERI_HZ); + + apll = rkclk_pll_get_rate(cru, CLK_ARM); + dpll = rkclk_pll_get_rate(cru, CLK_DDR); + gpll = rkclk_pll_get_rate(cru, CLK_GENERAL); + + rk_clrsetreg(&cru->clksel_con[0], CORE_CLK_DIV_MASK, + 0 << MAC_CLK_DIV_SHIFT); + + printf("APLL: %d DPLL:%d GPLL:%d\n", apll, dpll, gpll); + printf("ACLK_BUS: %d ACLK_PERI:%d HCLK_PERI:%d PCLK_PERI:%d\n", + aclk_bus, aclk_peri, hclk_peri, pclk_peri); +} + +static int rv1108_clk_of_to_plat(struct udevice *dev) +{ + struct rv1108_clk_priv *priv = dev_get_priv(dev); + + priv->cru = dev_read_addr_ptr(dev); + + return 0; +} + +static int rv1108_clk_probe(struct udevice *dev) +{ + struct rv1108_clk_priv *priv = dev_get_priv(dev); + + rkclk_init(priv->cru); + + return 0; +} + +static int rv1108_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 rv1108_cru, + glb_srst_fst_val); + priv->glb_srst_snd_value = offsetof(struct rv1108_cru, + glb_srst_snd_val); + dev_set_priv(sys_child, priv); + } + +#if CONFIG_IS_ENABLED(RESET_ROCKCHIP) + ret = offsetof(struct rv1108_cru, softrst_con[0]); + ret = rockchip_reset_bind(dev, ret, 13); + if (ret) + debug("Warning: software reset driver bind faile\n"); +#endif + + return 0; +} + +static const struct udevice_id rv1108_clk_ids[] = { + { .compatible = "rockchip,rv1108-cru" }, + { } +}; + +U_BOOT_DRIVER(clk_rv1108) = { + .name = "clk_rv1108", + .id = UCLASS_CLK, + .of_match = rv1108_clk_ids, + .priv_auto = sizeof(struct rv1108_clk_priv), + .ops = &rv1108_clk_ops, + .bind = rv1108_clk_bind, + .of_to_plat = rv1108_clk_of_to_plat, + .probe = rv1108_clk_probe, +}; |