+// SPDX-License-Identifier: GPL-2.0
/*
* (C) Copyright 2015 Google, Inc
- *
- * SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <errno.h>
+#include <malloc.h>
#include <syscon.h>
#include <asm/io.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/cru_rk3036.h>
-#include <asm/arch/hardware.h>
+#include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/cru_rk3036.h>
+#include <asm/arch-rockchip/hardware.h>
#include <dm/lists.h>
#include <dt-bindings/clock/rk3036-cru.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-struct rk3036_clk_priv {
- struct rk3036_cru *cru;
- ulong rate;
-};
+#include <linux/log2.h>
enum {
VCO_MAX_HZ = 2400U * 1000000,
#hz "Hz cannot be hit with PLL "\
"divisors on line " __stringify(__LINE__));
-/* use interge mode*/
+/* use integer mode*/
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);
-static inline unsigned int log2(unsigned int value)
-{
- return fls(value) - 1;
-}
-
-void *rockchip_get_cru(void)
-{
- struct udevice *dev;
- fdt_addr_t addr;
- int ret;
-
- ret = uclass_get_device(UCLASS_CLK, 0, &dev);
- if (ret)
- return ERR_PTR(ret);
-
- addr = dev_get_addr(dev);
- if (addr == FDT_ADDR_T_NONE)
- return ERR_PTR(-EINVAL);
-
- return (void *)addr;
-}
-
static int rkclk_set_pll(struct rk3036_cru *cru, enum rk_clk_id clk_id,
const struct pll_div *div)
{
assert(vco_hz >= VCO_MIN_HZ && vco_hz <= VCO_MAX_HZ &&
output_hz >= OUTPUT_MIN_HZ && output_hz <= OUTPUT_MAX_HZ);
- /* use interger mode */
- rk_clrreg(&pll->con1, 1 << PLL_DSMPD_SHIFT);
+ /* use integer mode */
+ rk_setreg(&pll->con1, 1 << PLL_DSMPD_SHIFT);
rk_clrsetreg(&pll->con0,
- PLL_POSTDIV1_MASK << PLL_POSTDIV1_SHIFT | PLL_FBDIV_MASK,
+ PLL_POSTDIV1_MASK | PLL_FBDIV_MASK,
(div->postdiv1 << PLL_POSTDIV1_SHIFT) | div->fbdiv);
- rk_clrsetreg(&pll->con1, PLL_POSTDIV2_MASK << PLL_POSTDIV2_SHIFT |
- PLL_REFDIV_MASK << PLL_REFDIV_SHIFT,
- (div->postdiv2 << PLL_POSTDIV2_SHIFT |
- div->refdiv << PLL_REFDIV_SHIFT));
+ rk_clrsetreg(&pll->con1, PLL_POSTDIV2_MASK | PLL_REFDIV_MASK,
+ (div->postdiv2 << PLL_POSTDIV2_SHIFT |
+ div->refdiv << PLL_REFDIV_SHIFT));
/* waiting for pll lock */
while (readl(&pll->con1) & (1 << PLL_LOCK_STATUS_SHIFT))
/* pll enter slow-mode */
rk_clrsetreg(&cru->cru_mode_con,
- GPLL_MODE_MASK << GPLL_MODE_SHIFT |
- APLL_MODE_MASK << APLL_MODE_SHIFT,
+ GPLL_MODE_MASK | APLL_MODE_MASK,
GPLL_MODE_SLOW << GPLL_MODE_SHIFT |
APLL_MODE_SLOW << APLL_MODE_SHIFT);
rkclk_set_pll(cru, CLK_GENERAL, &gpll_init_cfg);
/*
- * select apll as core clock pll source and
- * set up dependent divisors for PCLK/HCLK and ACLK clocks.
+ * select apll as cpu/core clock pll source and
+ * set up dependent divisors for PERI and ACLK clocks.
* core hz : apll = 1:1
*/
aclk_div = APLL_HZ / CORE_ACLK_HZ - 1;
assert((pclk_div + 1) * CORE_PERI_HZ == APLL_HZ && pclk_div < 0xf);
rk_clrsetreg(&cru->cru_clksel_con[0],
- CORE_CLK_PLL_SEL_MASK << CORE_CLK_PLL_SEL_SHIFT |
- CORE_DIV_CON_MASK << CORE_DIV_CON_SHIFT,
+ CORE_CLK_PLL_SEL_MASK | CORE_DIV_CON_MASK,
CORE_CLK_PLL_SEL_APLL << CORE_CLK_PLL_SEL_SHIFT |
0 << CORE_DIV_CON_SHIFT);
rk_clrsetreg(&cru->cru_clksel_con[1],
- CORE_ACLK_DIV_MASK << CORE_ACLK_DIV_SHIFT |
- CORE_PERI_DIV_MASK << CORE_PERI_DIV_SHIFT,
+ CORE_ACLK_DIV_MASK | CORE_PERI_DIV_MASK,
aclk_div << CORE_ACLK_DIV_SHIFT |
pclk_div << CORE_PERI_DIV_SHIFT);
/*
- * select apll as cpu clock pll source and
+ * select apll as pd_bus bus clock source and
* set up dependent divisors for PCLK/HCLK and ACLK clocks.
*/
- aclk_div = APLL_HZ / CPU_ACLK_HZ - 1;
- assert((aclk_div + 1) * CPU_ACLK_HZ == APLL_HZ && aclk_div < 0x1f);
+ aclk_div = GPLL_HZ / BUS_ACLK_HZ - 1;
+ assert((aclk_div + 1) * BUS_ACLK_HZ == GPLL_HZ && aclk_div <= 0x1f);
- pclk_div = APLL_HZ / CPU_PCLK_HZ - 1;
- assert((pclk_div + 1) * CPU_PCLK_HZ == APLL_HZ && pclk_div < 0x7);
+ pclk_div = GPLL_HZ / BUS_PCLK_HZ - 1;
+ assert((pclk_div + 1) * BUS_PCLK_HZ == GPLL_HZ && pclk_div <= 0x7);
- hclk_div = APLL_HZ / CPU_HCLK_HZ - 1;
- assert((hclk_div + 1) * CPU_HCLK_HZ == APLL_HZ && hclk_div < 0x3);
+ hclk_div = GPLL_HZ / BUS_HCLK_HZ - 1;
+ assert((hclk_div + 1) * BUS_HCLK_HZ == GPLL_HZ && hclk_div <= 0x3);
rk_clrsetreg(&cru->cru_clksel_con[0],
- CPU_CLK_PLL_SEL_MASK << CPU_CLK_PLL_SEL_SHIFT |
- ACLK_CPU_DIV_MASK << ACLK_CPU_DIV_SHIFT,
- CPU_CLK_PLL_SEL_APLL << CPU_CLK_PLL_SEL_SHIFT |
- aclk_div << ACLK_CPU_DIV_SHIFT);
+ BUS_ACLK_PLL_SEL_MASK | BUS_ACLK_DIV_MASK,
+ BUS_ACLK_PLL_SEL_GPLL << BUS_ACLK_PLL_SEL_SHIFT |
+ aclk_div << BUS_ACLK_DIV_SHIFT);
rk_clrsetreg(&cru->cru_clksel_con[1],
- CPU_PCLK_DIV_MASK << CPU_PCLK_DIV_SHIFT |
- CPU_HCLK_DIV_MASK << CPU_HCLK_DIV_SHIFT,
- pclk_div << CPU_PCLK_DIV_SHIFT |
- hclk_div << CPU_HCLK_DIV_SHIFT);
+ BUS_PCLK_DIV_MASK | BUS_HCLK_DIV_MASK,
+ pclk_div << BUS_PCLK_DIV_SHIFT |
+ hclk_div << BUS_HCLK_DIV_SHIFT);
/*
- * select gpll as peri clock pll source and
+ * select gpll as pd_peri bus clock source and
* set up dependent divisors for PCLK/HCLK and ACLK clocks.
*/
aclk_div = GPLL_HZ / PERI_ACLK_HZ - 1;
assert((aclk_div + 1) * PERI_ACLK_HZ == GPLL_HZ && aclk_div < 0x1f);
- hclk_div = log2(PERI_ACLK_HZ / PERI_HCLK_HZ);
+ hclk_div = ilog2(PERI_ACLK_HZ / PERI_HCLK_HZ);
assert((1 << hclk_div) * PERI_HCLK_HZ ==
- PERI_ACLK_HZ && (pclk_div < 0x4));
+ PERI_ACLK_HZ && (hclk_div < 0x4));
- pclk_div = log2(PERI_ACLK_HZ / PERI_PCLK_HZ);
+ pclk_div = ilog2(PERI_ACLK_HZ / PERI_PCLK_HZ);
assert((1 << pclk_div) * PERI_PCLK_HZ ==
PERI_ACLK_HZ && pclk_div < 0x8);
rk_clrsetreg(&cru->cru_clksel_con[10],
- PERI_PLL_SEL_MASK << PERI_PLL_SEL_SHIFT |
- PERI_PCLK_DIV_MASK << PERI_PCLK_DIV_SHIFT |
- PERI_HCLK_DIV_MASK << PERI_HCLK_DIV_SHIFT |
- PERI_ACLK_DIV_MASK << PERI_ACLK_DIV_SHIFT,
+ PERI_PLL_SEL_MASK | PERI_PCLK_DIV_MASK |
+ PERI_HCLK_DIV_MASK | PERI_ACLK_DIV_MASK,
PERI_PLL_GPLL << PERI_PLL_SEL_SHIFT |
pclk_div << PERI_PCLK_DIV_SHIFT |
hclk_div << PERI_HCLK_DIV_SHIFT |
/* PLL enter normal-mode */
rk_clrsetreg(&cru->cru_mode_con,
- GPLL_MODE_MASK << GPLL_MODE_SHIFT |
- APLL_MODE_MASK << APLL_MODE_SHIFT,
+ GPLL_MODE_MASK | APLL_MODE_MASK,
GPLL_MODE_NORM << GPLL_MODE_SHIFT |
APLL_MODE_NORM << APLL_MODE_SHIFT);
}
0xff, APLL_MODE_SHIFT, DPLL_MODE_SHIFT, 0xff,
GPLL_MODE_SHIFT, 0xff
};
- static u8 clk_mask[CLK_COUNT] = {
- 0xff, APLL_MODE_MASK, DPLL_MODE_MASK, 0xff,
- GPLL_MODE_MASK, 0xff
+ static u32 clk_mask[CLK_COUNT] = {
+ 0xffffffff, APLL_MODE_MASK, DPLL_MODE_MASK, 0xffffffff,
+ GPLL_MODE_MASK, 0xffffffff
};
uint shift;
uint mask;
shift = clk_shift[clk_id];
mask = clk_mask[clk_id];
- switch ((con >> shift) & mask) {
+ switch ((con & mask) >> shift) {
case GPLL_MODE_SLOW:
return OSC_HZ;
case GPLL_MODE_NORM:
/* normal mode */
con = readl(&pll->con0);
- postdiv1 = (con >> PLL_POSTDIV1_SHIFT) & PLL_POSTDIV1_MASK;
- fbdiv = (con >> PLL_FBDIV_SHIFT) & PLL_FBDIV_MASK;
+ postdiv1 = (con & PLL_POSTDIV1_MASK) >> PLL_POSTDIV1_SHIFT;
+ fbdiv = (con & PLL_FBDIV_MASK) >> PLL_FBDIV_SHIFT;
con = readl(&pll->con1);
- postdiv2 = (con >> PLL_POSTDIV2_SHIFT) & PLL_POSTDIV2_MASK;
- refdiv = (con >> PLL_REFDIV_SHIFT) & PLL_REFDIV_MASK;
+ postdiv2 = (con & PLL_POSTDIV2_MASK) >> PLL_POSTDIV2_SHIFT;
+ refdiv = (con & PLL_REFDIV_MASK) >> PLL_REFDIV_SHIFT;
return (24 * fbdiv / (refdiv * postdiv1 * postdiv2)) * 1000000;
case GPLL_MODE_DEEP:
default:
switch (periph) {
case HCLK_EMMC:
+ case SCLK_EMMC:
con = readl(&cru->cru_clksel_con[12]);
- mux = (con >> EMMC_PLL_SHIFT) & EMMC_PLL_MASK;
- div = (con >> EMMC_DIV_SHIFT) & EMMC_DIV_MASK;
+ mux = (con & EMMC_PLL_MASK) >> EMMC_PLL_SHIFT;
+ div = (con & EMMC_DIV_MASK) >> EMMC_DIV_SHIFT;
break;
case HCLK_SDIO:
+ case SCLK_SDIO:
con = readl(&cru->cru_clksel_con[12]);
- mux = (con >> MMC0_PLL_SHIFT) & MMC0_PLL_MASK;
- div = (con >> MMC0_DIV_SHIFT) & MMC0_DIV_MASK;
+ mux = (con & MMC0_PLL_MASK) >> MMC0_PLL_SHIFT;
+ div = (con & MMC0_DIV_MASK) >> MMC0_DIV_SHIFT;
break;
default:
return -EINVAL;
}
src_rate = mux == EMMC_SEL_24M ? OSC_HZ : clk_general_rate;
- return DIV_TO_RATE(src_rate, div);
+ return DIV_TO_RATE(src_rate, div) / 2;
}
static ulong rockchip_mmc_set_clk(struct rk3036_cru *cru, uint clk_general_rate,
debug("%s: clk_general_rate=%u\n", __func__, clk_general_rate);
/* mmc clock auto divide 2 in internal */
- src_clk_div = (clk_general_rate / 2 + freq - 1) / freq;
+ src_clk_div = DIV_ROUND_UP(clk_general_rate / 2, freq);
- if (src_clk_div > 0x7f) {
- src_clk_div = (OSC_HZ / 2 + freq - 1) / freq;
+ if (src_clk_div > 128) {
+ src_clk_div = DIV_ROUND_UP(OSC_HZ / 2, freq);
+ assert(src_clk_div - 1 < 128);
mux = EMMC_SEL_24M;
} else {
mux = EMMC_SEL_GPLL;
switch (periph) {
case HCLK_EMMC:
+ case SCLK_EMMC:
rk_clrsetreg(&cru->cru_clksel_con[12],
- EMMC_PLL_MASK << EMMC_PLL_SHIFT |
- EMMC_DIV_MASK << EMMC_DIV_SHIFT,
+ EMMC_PLL_MASK | EMMC_DIV_MASK,
mux << EMMC_PLL_SHIFT |
(src_clk_div - 1) << EMMC_DIV_SHIFT);
break;
case HCLK_SDIO:
+ case SCLK_SDIO:
rk_clrsetreg(&cru->cru_clksel_con[11],
- MMC0_PLL_MASK << MMC0_PLL_SHIFT |
- MMC0_DIV_MASK << MMC0_DIV_SHIFT,
+ MMC0_PLL_MASK | MMC0_DIV_MASK,
mux << MMC0_PLL_SHIFT |
(src_clk_div - 1) << MMC0_DIV_SHIFT);
break;
case 0 ... 63:
return 0;
case HCLK_EMMC:
+ case SCLK_EMMC:
new_rate = rockchip_mmc_set_clk(priv->cru, gclk_rate,
clk->id, rate);
break;
.set_rate = rk3036_clk_set_rate,
};
+static int rk3036_clk_ofdata_to_platdata(struct udevice *dev)
+{
+ struct rk3036_clk_priv *priv = dev_get_priv(dev);
+
+ priv->cru = dev_read_addr_ptr(dev);
+
+ return 0;
+}
+
static int rk3036_clk_probe(struct udevice *dev)
{
struct rk3036_clk_priv *priv = dev_get_priv(dev);
- priv->cru = (struct rk3036_cru *)dev_get_addr(dev);
rkclk_init(priv->cru);
return 0;
static int rk3036_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(gd->dm_root, "rk3036_sysreset", "reset", &dev);
+ 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 rk3036_cru,
+ cru_glb_srst_fst_value);
+ priv->glb_srst_snd_value = offsetof(struct rk3036_cru,
+ cru_glb_srst_snd_value);
+ sys_child->priv = priv;
+ }
+
+#if CONFIG_IS_ENABLED(RESET_ROCKCHIP)
+ ret = offsetof(struct rk3036_cru, cru_softrst_con[0]);
+ ret = rockchip_reset_bind(dev, ret, 9);
if (ret)
- debug("Warning: No RK3036 reset driver: ret=%d\n", ret);
+ debug("Warning: software reset driver bind faile\n");
+#endif
return 0;
}
{ }
};
-U_BOOT_DRIVER(clk_rk3036) = {
+U_BOOT_DRIVER(rockchip_rk3036_cru) = {
.name = "clk_rk3036",
.id = UCLASS_CLK,
.of_match = rk3036_clk_ids,
.priv_auto_alloc_size = sizeof(struct rk3036_clk_priv),
+ .ofdata_to_platdata = rk3036_clk_ofdata_to_platdata,
.ops = &rk3036_clk_ops,
.bind = rk3036_clk_bind,
.probe = rk3036_clk_probe,
projects / J-u-boot.git / blobdiff