diff options
Diffstat (limited to 'drivers/clk/clk_rk3288.c')
| -rw-r--r-- | drivers/clk/clk_rk3288.c | 143 |
1 files changed, 26 insertions, 117 deletions
diff --git a/drivers/clk/clk_rk3288.c b/drivers/clk/clk_rk3288.c index d88893c8ea..2285453e8d 100644 --- a/drivers/clk/clk_rk3288.c +++ b/drivers/clk/clk_rk3288.c @@ -5,7 +5,7 @@ */ #include <common.h> -#include <clk.h> +#include <clk-uclass.h> #include <dm.h> #include <errno.h> #include <syscon.h> @@ -21,10 +21,6 @@ DECLARE_GLOBAL_DATA_PTR; -struct rk3288_clk_plat { - enum rk_clk_id clk_id; -}; - struct rk3288_clk_priv { struct rk3288_grf *grf; struct rk3288_cru *cru; @@ -135,34 +131,18 @@ static const struct pll_div apll_init_cfg = PLL_DIVISORS(APLL_HZ, 1, 1); static const struct pll_div gpll_init_cfg = PLL_DIVISORS(GPLL_HZ, 2, 2); static const struct pll_div cpll_init_cfg = PLL_DIVISORS(CPLL_HZ, 1, 2); -int rkclk_get_clk(enum rk_clk_id clk_id, struct udevice **devp) -{ - struct udevice *dev; - - for (uclass_find_first_device(UCLASS_CLK, &dev); - dev; - uclass_find_next_device(&dev)) { - struct rk3288_clk_plat *plat = dev_get_platdata(dev); - - if (plat->clk_id == clk_id) { - *devp = dev; - return device_probe(dev); - } - } - - return -ENODEV; -} - void *rockchip_get_cru(void) { struct rk3288_clk_priv *priv; struct udevice *dev; int ret; - ret = rkclk_get_clk(CLK_GENERAL, &dev); + ret = uclass_get_device(UCLASS_CLK, 0, &dev); if (ret) return ERR_PTR(ret); + priv = dev_get_priv(dev); + return priv->cru; } @@ -539,32 +519,6 @@ static uint32_t rkclk_pll_get_rate(struct rk3288_cru *cru, } } -static ulong rk3288_clk_get_rate(struct udevice *dev) -{ - struct rk3288_clk_plat *plat = dev_get_platdata(dev); - struct rk3288_clk_priv *priv = dev_get_priv(dev); - - debug("%s\n", dev->name); - return rkclk_pll_get_rate(priv->cru, plat->clk_id); -} - -static ulong rk3288_clk_set_rate(struct udevice *dev, ulong rate) -{ - struct rk3288_clk_plat *plat = dev_get_platdata(dev); - struct rk3288_clk_priv *priv = dev_get_priv(dev); - - debug("%s\n", dev->name); - switch (plat->clk_id) { - case CLK_DDR: - rkclk_configure_ddr(priv->cru, priv->grf, rate); - break; - default: - return -ENOENT; - } - - return 0; -} - static ulong rockchip_mmc_get_clk(struct rk3288_cru *cru, uint gclk_rate, int periph) { @@ -710,27 +664,25 @@ static ulong rockchip_spi_set_clk(struct rk3288_cru *cru, uint gclk_rate, return rockchip_spi_get_clk(cru, gclk_rate, periph); } -static ulong rk3288_get_periph_rate(struct udevice *dev, int periph) +static ulong rk3288_clk_get_rate(struct clk *clk) { - struct rk3288_clk_priv *priv = dev_get_priv(dev); - struct udevice *gclk; + struct rk3288_clk_priv *priv = dev_get_priv(clk->dev); ulong new_rate, gclk_rate; - int ret; - ret = rkclk_get_clk(CLK_GENERAL, &gclk); - if (ret) - return ret; - gclk_rate = clk_get_rate(gclk); - switch (periph) { + gclk_rate = rkclk_pll_get_rate(priv->cru, CLK_GENERAL); + switch (clk->id) { + case 0 ... 63: + new_rate = rkclk_pll_get_rate(priv->cru, clk->id); + break; case HCLK_EMMC: case HCLK_SDMMC: case HCLK_SDIO0: - new_rate = rockchip_mmc_get_clk(priv->cru, gclk_rate, periph); + new_rate = rockchip_mmc_get_clk(priv->cru, gclk_rate, clk->id); break; case SCLK_SPI0: case SCLK_SPI1: case SCLK_SPI2: - new_rate = rockchip_spi_get_clk(priv->cru, gclk_rate, periph); + new_rate = rockchip_spi_get_clk(priv->cru, gclk_rate, clk->id); break; case PCLK_I2C0: case PCLK_I2C1: @@ -746,36 +698,34 @@ static ulong rk3288_get_periph_rate(struct udevice *dev, int periph) return new_rate; } -static ulong rk3288_set_periph_rate(struct udevice *dev, int periph, ulong rate) +static ulong rk3288_clk_set_rate(struct clk *clk, ulong rate) { - struct rk3288_clk_priv *priv = dev_get_priv(dev); + struct rk3288_clk_priv *priv = dev_get_priv(clk->dev); struct rk3288_cru *cru = priv->cru; - struct udevice *gclk; ulong new_rate, gclk_rate; - int ret; - ret = rkclk_get_clk(CLK_GENERAL, &gclk); - if (ret) - return ret; - gclk_rate = clk_get_rate(gclk); - switch (periph) { + gclk_rate = rkclk_pll_get_rate(priv->cru, CLK_GENERAL); + switch (clk->id) { + case CLK_DDR: + new_rate = rkclk_configure_ddr(priv->cru, priv->grf, rate); + break; case HCLK_EMMC: case HCLK_SDMMC: case HCLK_SDIO0: - new_rate = rockchip_mmc_set_clk(cru, gclk_rate, periph, rate); + new_rate = rockchip_mmc_set_clk(cru, gclk_rate, clk->id, rate); break; case SCLK_SPI0: case SCLK_SPI1: case SCLK_SPI2: - new_rate = rockchip_spi_set_clk(cru, gclk_rate, periph, rate); + new_rate = rockchip_spi_set_clk(cru, gclk_rate, clk->id, rate); break; #ifndef CONFIG_SPL_BUILD case SCLK_MAC: - new_rate = rockchip_mac_set_clk(priv->cru, periph, rate); + new_rate = rockchip_mac_set_clk(priv->cru, clk->id, rate); break; case DCLK_VOP0: case DCLK_VOP1: - new_rate = rockchip_vop_set_clk(cru, priv->grf, periph, rate); + new_rate = rockchip_vop_set_clk(cru, priv->grf, clk->id, rate); break; case SCLK_EDP_24M: /* clk_edp_24M source: 24M */ @@ -795,7 +745,7 @@ static ulong rk3288_set_periph_rate(struct udevice *dev, int periph, ulong rate) div = CPLL_HZ / rate; assert((div - 1 < 64) && (div * rate == CPLL_HZ)); - switch (periph) { + switch (clk->id) { case ACLK_VOP0: rk_clrsetreg(&cru->cru_clksel_con[31], 3 << 6 | 0x1f << 0, @@ -831,22 +781,12 @@ static ulong rk3288_set_periph_rate(struct udevice *dev, int periph, ulong rate) static struct clk_ops rk3288_clk_ops = { .get_rate = rk3288_clk_get_rate, .set_rate = rk3288_clk_set_rate, - .set_periph_rate = rk3288_set_periph_rate, - .get_periph_rate = rk3288_get_periph_rate, }; static int rk3288_clk_probe(struct udevice *dev) { - struct rk3288_clk_plat *plat = dev_get_platdata(dev); struct rk3288_clk_priv *priv = dev_get_priv(dev); - if (plat->clk_id != CLK_OSC) { - struct rk3288_clk_priv *parent_priv = dev_get_priv(dev->parent); - - priv->cru = parent_priv->cru; - priv->grf = parent_priv->grf; - return 0; - } priv->cru = (struct rk3288_cru *)dev_get_addr(dev); priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); #ifdef CONFIG_SPL_BUILD @@ -856,39 +796,9 @@ static int rk3288_clk_probe(struct udevice *dev) return 0; } -static const char *const clk_name[CLK_COUNT] = { - "osc", - "apll", - "dpll", - "cpll", - "gpll", - "npll", -}; - static int rk3288_clk_bind(struct udevice *dev) { - struct rk3288_clk_plat *plat = dev_get_platdata(dev); - int pll, ret; - - /* We only need to set up the root clock */ - if (dev->of_offset == -1) { - plat->clk_id = CLK_OSC; - return 0; - } - - /* Create devices for P main clocks */ - for (pll = 1; pll < CLK_COUNT; pll++) { - struct udevice *child; - struct rk3288_clk_plat *cplat; - - debug("%s %s\n", __func__, clk_name[pll]); - ret = device_bind_driver(dev, "clk_rk3288", clk_name[pll], - &child); - if (ret) - return ret; - cplat = dev_get_platdata(child); - cplat->clk_id = pll; - } + int ret; /* The reset driver does not have a device node, so bind it here */ ret = device_bind_driver(gd->dm_root, "rk3288_sysreset", "reset", &dev); @@ -908,7 +818,6 @@ U_BOOT_DRIVER(clk_rk3288) = { .id = UCLASS_CLK, .of_match = rk3288_clk_ids, .priv_auto_alloc_size = sizeof(struct rk3288_clk_priv), - .platdata_auto_alloc_size = sizeof(struct rk3288_clk_plat), .ops = &rk3288_clk_ops, .bind = rk3288_clk_bind, .probe = rk3288_clk_probe, |