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path: root/drivers/clk/rockchip/clk_rk3288.c
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Diffstat (limited to 'drivers/clk/rockchip/clk_rk3288.c')
-rw-r--r--drivers/clk/rockchip/clk_rk3288.c148
1 files changed, 72 insertions, 76 deletions
diff --git a/drivers/clk/rockchip/clk_rk3288.c b/drivers/clk/rockchip/clk_rk3288.c
index fc369dde08..792ee76509 100644
--- a/drivers/clk/rockchip/clk_rk3288.c
+++ b/drivers/clk/rockchip/clk_rk3288.c
@@ -59,14 +59,14 @@ enum {
PLL_RESET_SHIFT = 5,
/* CLKSEL0 */
- CORE_SEL_PLL_MASK = 1,
CORE_SEL_PLL_SHIFT = 15,
- A17_DIV_MASK = 0x1f,
+ CORE_SEL_PLL_MASK = 1 << CORE_SEL_PLL_SHIFT,
A17_DIV_SHIFT = 8,
- MP_DIV_MASK = 0xf,
+ A17_DIV_MASK = 0x1f << A17_DIV_SHIFT,
MP_DIV_SHIFT = 4,
- M0_DIV_MASK = 0xf,
+ MP_DIV_MASK = 0xf << MP_DIV_SHIFT,
M0_DIV_SHIFT = 0,
+ M0_DIV_MASK = 0xf << M0_DIV_SHIFT,
/* CLKSEL1: pd bus clk pll sel: codec or general */
PD_BUS_SEL_PLL_MASK = 15,
@@ -75,41 +75,41 @@ enum {
/* pd bus pclk div: pclk = pd_bus_aclk /(div + 1) */
PD_BUS_PCLK_DIV_SHIFT = 12,
- PD_BUS_PCLK_DIV_MASK = 7,
+ PD_BUS_PCLK_DIV_MASK = 7 << PD_BUS_PCLK_DIV_SHIFT,
/* pd bus hclk div: aclk_bus: hclk_bus = 1:1 or 2:1 or 4:1 */
PD_BUS_HCLK_DIV_SHIFT = 8,
- PD_BUS_HCLK_DIV_MASK = 3,
+ PD_BUS_HCLK_DIV_MASK = 3 << PD_BUS_HCLK_DIV_SHIFT,
/* pd bus aclk div: pd_bus_aclk = pd_bus_src_clk /(div0 * div1) */
PD_BUS_ACLK_DIV0_SHIFT = 3,
- PD_BUS_ACLK_DIV0_MASK = 0x1f,
+ PD_BUS_ACLK_DIV0_MASK = 0x1f << PD_BUS_ACLK_DIV0_SHIFT,
PD_BUS_ACLK_DIV1_SHIFT = 0,
- PD_BUS_ACLK_DIV1_MASK = 0x7,
+ PD_BUS_ACLK_DIV1_MASK = 0x7 << PD_BUS_ACLK_DIV1_SHIFT,
/*
* CLKSEL10
* peripheral bus pclk div:
* aclk_bus: pclk_bus = 1:1 or 2:1 or 4:1 or 8:1
*/
- PERI_SEL_PLL_MASK = 1,
PERI_SEL_PLL_SHIFT = 15,
+ PERI_SEL_PLL_MASK = 1 << PERI_SEL_PLL_SHIFT,
PERI_SEL_CPLL = 0,
PERI_SEL_GPLL,
PERI_PCLK_DIV_SHIFT = 12,
- PERI_PCLK_DIV_MASK = 3,
+ PERI_PCLK_DIV_MASK = 3 << PERI_PCLK_DIV_SHIFT,
/* peripheral bus hclk div: aclk_bus: hclk_bus = 1:1 or 2:1 or 4:1 */
PERI_HCLK_DIV_SHIFT = 8,
- PERI_HCLK_DIV_MASK = 3,
+ PERI_HCLK_DIV_MASK = 3 << PERI_HCLK_DIV_SHIFT,
/*
* peripheral bus aclk div:
* aclk_periph = periph_clk_src / (peri_aclk_div_con + 1)
*/
PERI_ACLK_DIV_SHIFT = 0,
- PERI_ACLK_DIV_MASK = 0x1f,
+ PERI_ACLK_DIV_MASK = 0x1f << PERI_ACLK_DIV_SHIFT,
SOCSTS_DPLL_LOCK = 1 << 5,
SOCSTS_APLL_LOCK = 1 << 6,
@@ -131,10 +131,8 @@ enum {
/* Keep divisors as low as possible to reduce jitter and power usage */
static const struct pll_div apll_init_cfg = PLL_DIVISORS(APLL_HZ, 1, 1);
-#ifdef CONFIG_SPL_BUILD
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);
-#endif
static int rkclk_set_pll(struct rk3288_cru *cru, enum rk_clk_id clk_id,
const struct pll_div *div)
@@ -154,8 +152,7 @@ static int rkclk_set_pll(struct rk3288_cru *cru, enum rk_clk_id clk_id,
/* enter reset */
rk_setreg(&pll->con3, 1 << PLL_RESET_SHIFT);
- rk_clrsetreg(&pll->con0,
- CLKR_MASK << CLKR_SHIFT | PLL_OD_MASK,
+ rk_clrsetreg(&pll->con0, CLKR_MASK | PLL_OD_MASK,
((div->nr - 1) << CLKR_SHIFT) | (div->no - 1));
rk_clrsetreg(&pll->con1, CLKF_MASK, div->nf - 1);
rk_clrsetreg(&pll->con2, PLL_BWADJ_MASK, (div->nf >> 1) - 1);
@@ -198,7 +195,7 @@ static int rkclk_configure_ddr(struct rk3288_cru *cru, struct rk3288_grf *grf,
}
/* pll enter slow-mode */
- rk_clrsetreg(&cru->cru_mode_con, DPLL_MODE_MASK << DPLL_MODE_SHIFT,
+ rk_clrsetreg(&cru->cru_mode_con, DPLL_MODE_MASK,
DPLL_MODE_SLOW << DPLL_MODE_SHIFT);
rkclk_set_pll(cru, CLK_DDR, &dpll_cfg[cfg]);
@@ -208,7 +205,7 @@ static int rkclk_configure_ddr(struct rk3288_cru *cru, struct rk3288_grf *grf,
udelay(1);
/* PLL enter normal-mode */
- rk_clrsetreg(&cru->cru_mode_con, DPLL_MODE_MASK << DPLL_MODE_SHIFT,
+ rk_clrsetreg(&cru->cru_mode_con, DPLL_MODE_MASK,
DPLL_MODE_NORMAL << DPLL_MODE_SHIFT);
return 0;
@@ -296,7 +293,7 @@ static int rockchip_mac_set_clk(struct rk3288_cru *cru,
{
/* Assuming mac_clk is fed by an external clock */
rk_clrsetreg(&cru->cru_clksel_con[21],
- RMII_EXTCLK_MASK << RMII_EXTCLK_SHIFT,
+ RMII_EXTCLK_MASK,
RMII_EXTCLK_SELECT_EXT_CLK << RMII_EXTCLK_SHIFT);
return 0;
@@ -313,7 +310,7 @@ static int rockchip_vop_set_clk(struct rk3288_cru *cru, struct rk3288_grf *grf,
if (ret)
return ret;
- rk_clrsetreg(&cru->cru_mode_con, NPLL_MODE_MASK << NPLL_MODE_SHIFT,
+ rk_clrsetreg(&cru->cru_mode_con, NPLL_MODE_MASK,
NPLL_MODE_SLOW << NPLL_MODE_SHIFT);
rkclk_set_pll(cru, CLK_NEW, &npll_config);
@@ -324,7 +321,7 @@ static int rockchip_vop_set_clk(struct rk3288_cru *cru, struct rk3288_grf *grf,
udelay(1);
}
- rk_clrsetreg(&cru->cru_mode_con, NPLL_MODE_MASK << NPLL_MODE_SHIFT,
+ rk_clrsetreg(&cru->cru_mode_con, NPLL_MODE_MASK,
NPLL_MODE_NORMAL << NPLL_MODE_SHIFT);
/* vop dclk source clk: npll,dclk_div: 1 */
@@ -341,9 +338,8 @@ static int rockchip_vop_set_clk(struct rk3288_cru *cru, struct rk3288_grf *grf,
return 0;
}
-#endif
+#endif /* CONFIG_SPL_BUILD */
-#ifdef CONFIG_SPL_BUILD
static void rkclk_init(struct rk3288_cru *cru, struct rk3288_grf *grf)
{
u32 aclk_div;
@@ -352,8 +348,7 @@ static void rkclk_init(struct rk3288_cru *cru, struct rk3288_grf *grf)
/* pll enter slow-mode */
rk_clrsetreg(&cru->cru_mode_con,
- GPLL_MODE_MASK << GPLL_MODE_SHIFT |
- CPLL_MODE_MASK << CPLL_MODE_SHIFT,
+ GPLL_MODE_MASK | CPLL_MODE_MASK,
GPLL_MODE_SLOW << GPLL_MODE_SHIFT |
CPLL_MODE_SLOW << CPLL_MODE_SHIFT);
@@ -382,10 +377,8 @@ static void rkclk_init(struct rk3288_cru *cru, struct rk3288_grf *grf)
PD_BUS_ACLK_HZ && pclk_div < 0x7);
rk_clrsetreg(&cru->cru_clksel_con[1],
- PD_BUS_PCLK_DIV_MASK << PD_BUS_PCLK_DIV_SHIFT |
- PD_BUS_HCLK_DIV_MASK << PD_BUS_HCLK_DIV_SHIFT |
- PD_BUS_ACLK_DIV0_MASK << PD_BUS_ACLK_DIV0_SHIFT |
- PD_BUS_ACLK_DIV1_MASK << PD_BUS_ACLK_DIV1_SHIFT,
+ PD_BUS_PCLK_DIV_MASK | PD_BUS_HCLK_DIV_MASK |
+ PD_BUS_ACLK_DIV0_MASK | PD_BUS_ACLK_DIV1_MASK,
pclk_div << PD_BUS_PCLK_DIV_SHIFT |
hclk_div << PD_BUS_HCLK_DIV_SHIFT |
aclk_div << PD_BUS_ACLK_DIV0_SHIFT |
@@ -407,9 +400,8 @@ static void rkclk_init(struct rk3288_cru *cru, struct rk3288_grf *grf)
PERI_ACLK_HZ && (pclk_div < 0x4));
rk_clrsetreg(&cru->cru_clksel_con[10],
- 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_PCLK_DIV_MASK | PERI_HCLK_DIV_MASK |
+ PERI_ACLK_DIV_MASK,
PERI_SEL_GPLL << PERI_SEL_PLL_SHIFT |
pclk_div << PERI_PCLK_DIV_SHIFT |
hclk_div << PERI_HCLK_DIV_SHIFT |
@@ -417,18 +409,15 @@ static void rkclk_init(struct rk3288_cru *cru, struct rk3288_grf *grf)
/* PLL enter normal-mode */
rk_clrsetreg(&cru->cru_mode_con,
- GPLL_MODE_MASK << GPLL_MODE_SHIFT |
- CPLL_MODE_MASK << CPLL_MODE_SHIFT,
+ GPLL_MODE_MASK | CPLL_MODE_MASK,
GPLL_MODE_NORMAL << GPLL_MODE_SHIFT |
CPLL_MODE_NORMAL << CPLL_MODE_SHIFT);
}
-#endif
void rk3288_clk_configure_cpu(struct rk3288_cru *cru, struct rk3288_grf *grf)
{
/* pll enter slow-mode */
- rk_clrsetreg(&cru->cru_mode_con,
- APLL_MODE_MASK << APLL_MODE_SHIFT,
+ rk_clrsetreg(&cru->cru_mode_con, APLL_MODE_MASK,
APLL_MODE_SLOW << APLL_MODE_SHIFT);
rkclk_set_pll(cru, CLK_ARM, &apll_init_cfg);
@@ -444,10 +433,8 @@ void rk3288_clk_configure_cpu(struct rk3288_cru *cru, struct rk3288_grf *grf)
* arm clk = 1800MHz, mpclk = 450MHz, m0clk = 900MHz
*/
rk_clrsetreg(&cru->cru_clksel_con[0],
- CORE_SEL_PLL_MASK << CORE_SEL_PLL_SHIFT |
- A17_DIV_MASK << A17_DIV_SHIFT |
- MP_DIV_MASK << MP_DIV_SHIFT |
- M0_DIV_MASK << M0_DIV_SHIFT,
+ CORE_SEL_PLL_MASK | A17_DIV_MASK | MP_DIV_MASK |
+ M0_DIV_MASK,
0 << A17_DIV_SHIFT |
3 << MP_DIV_SHIFT |
1 << M0_DIV_SHIFT);
@@ -457,16 +444,14 @@ void rk3288_clk_configure_cpu(struct rk3288_cru *cru, struct rk3288_grf *grf)
* l2ramclk = 900MHz, atclk = 450MHz, pclk_dbg = 450MHz
*/
rk_clrsetreg(&cru->cru_clksel_con[37],
- CLK_L2RAM_DIV_MASK << CLK_L2RAM_DIV_SHIFT |
- ATCLK_CORE_DIV_CON_MASK << ATCLK_CORE_DIV_CON_SHIFT |
- PCLK_CORE_DBG_DIV_MASK >> PCLK_CORE_DBG_DIV_SHIFT,
+ CLK_L2RAM_DIV_MASK | ATCLK_CORE_DIV_CON_MASK |
+ PCLK_CORE_DBG_DIV_MASK,
1 << CLK_L2RAM_DIV_SHIFT |
3 << ATCLK_CORE_DIV_CON_SHIFT |
3 << PCLK_CORE_DBG_DIV_SHIFT);
/* PLL enter normal-mode */
- rk_clrsetreg(&cru->cru_mode_con,
- APLL_MODE_MASK << APLL_MODE_SHIFT,
+ rk_clrsetreg(&cru->cru_mode_con, APLL_MODE_MASK,
APLL_MODE_NORMAL << APLL_MODE_SHIFT);
}
@@ -486,16 +471,16 @@ static uint32_t rkclk_pll_get_rate(struct rk3288_cru *cru,
con = readl(&cru->cru_mode_con);
shift = clk_shift[clk_id];
- switch ((con >> shift) & APLL_MODE_MASK) {
+ switch ((con >> shift) & CRU_MODE_MASK) {
case APLL_MODE_SLOW:
return OSC_HZ;
case APLL_MODE_NORMAL:
/* normal mode */
con = readl(&pll->con0);
- no = ((con >> CLKOD_SHIFT) & CLKOD_MASK) + 1;
- nr = ((con >> CLKR_SHIFT) & CLKR_MASK) + 1;
+ no = ((con & CLKOD_MASK) >> CLKOD_SHIFT) + 1;
+ nr = ((con & CLKR_MASK) >> CLKR_SHIFT) + 1;
con = readl(&pll->con1);
- nf = ((con >> CLKF_SHIFT) & CLKF_MASK) + 1;
+ nf = ((con & CLKF_MASK) >> CLKF_SHIFT) + 1;
return (24 * nf / (nr * no)) * 1000000;
case APLL_MODE_DEEP:
@@ -515,20 +500,20 @@ static ulong rockchip_mmc_get_clk(struct rk3288_cru *cru, uint gclk_rate,
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_SDMMC:
case SCLK_SDMMC:
con = readl(&cru->cru_clksel_con[11]);
- 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;
case HCLK_SDIO0:
case SCLK_SDIO0:
con = readl(&cru->cru_clksel_con[12]);
- mux = (con >> SDIO0_PLL_SHIFT) & SDIO0_PLL_MASK;
- div = (con >> SDIO0_DIV_SHIFT) & SDIO0_DIV_MASK;
+ mux = (con & SDIO0_PLL_MASK) >> SDIO0_PLL_SHIFT;
+ div = (con & SDIO0_DIV_MASK) >> SDIO0_DIV_SHIFT;
break;
default:
return -EINVAL;
@@ -561,24 +546,21 @@ static ulong rockchip_mmc_set_clk(struct rk3288_cru *cru, uint gclk_rate,
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_SDMMC:
case SCLK_SDMMC:
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 HCLK_SDIO0:
case SCLK_SDIO0:
rk_clrsetreg(&cru->cru_clksel_con[12],
- SDIO0_PLL_MASK << SDIO0_PLL_SHIFT |
- SDIO0_DIV_MASK << SDIO0_DIV_SHIFT,
+ SDIO0_PLL_MASK | SDIO0_DIV_MASK,
mux << SDIO0_PLL_SHIFT |
(src_clk_div - 1) << SDIO0_DIV_SHIFT);
break;
@@ -598,18 +580,18 @@ static ulong rockchip_spi_get_clk(struct rk3288_cru *cru, uint gclk_rate,
switch (periph) {
case SCLK_SPI0:
con = readl(&cru->cru_clksel_con[25]);
- mux = (con >> SPI0_PLL_SHIFT) & SPI0_PLL_MASK;
- div = (con >> SPI0_DIV_SHIFT) & SPI0_DIV_MASK;
+ mux = (con & SPI0_PLL_MASK) >> SPI0_PLL_SHIFT;
+ div = (con & SPI0_DIV_MASK) >> SPI0_DIV_SHIFT;
break;
case SCLK_SPI1:
con = readl(&cru->cru_clksel_con[25]);
- mux = (con >> SPI1_PLL_SHIFT) & SPI1_PLL_MASK;
- div = (con >> SPI1_DIV_SHIFT) & SPI1_DIV_MASK;
+ mux = (con & SPI1_PLL_MASK) >> SPI1_PLL_SHIFT;
+ div = (con & SPI1_DIV_MASK) >> SPI1_DIV_SHIFT;
break;
case SCLK_SPI2:
con = readl(&cru->cru_clksel_con[39]);
- mux = (con >> SPI2_PLL_SHIFT) & SPI2_PLL_MASK;
- div = (con >> SPI2_DIV_SHIFT) & SPI2_DIV_MASK;
+ mux = (con & SPI2_PLL_MASK) >> SPI2_PLL_SHIFT;
+ div = (con & SPI2_DIV_MASK) >> SPI2_DIV_SHIFT;
break;
default:
return -EINVAL;
@@ -629,22 +611,19 @@ static ulong rockchip_spi_set_clk(struct rk3288_cru *cru, uint gclk_rate,
switch (periph) {
case SCLK_SPI0:
rk_clrsetreg(&cru->cru_clksel_con[25],
- SPI0_PLL_MASK << SPI0_PLL_SHIFT |
- SPI0_DIV_MASK << SPI0_DIV_SHIFT,
+ SPI0_PLL_MASK | SPI0_DIV_MASK,
SPI0_PLL_SELECT_GENERAL << SPI0_PLL_SHIFT |
src_clk_div << SPI0_DIV_SHIFT);
break;
case SCLK_SPI1:
rk_clrsetreg(&cru->cru_clksel_con[25],
- SPI1_PLL_MASK << SPI1_PLL_SHIFT |
- SPI1_DIV_MASK << SPI1_DIV_SHIFT,
+ SPI1_PLL_MASK | SPI1_DIV_MASK,
SPI1_PLL_SELECT_GENERAL << SPI1_PLL_SHIFT |
src_clk_div << SPI1_DIV_SHIFT);
break;
case SCLK_SPI2:
rk_clrsetreg(&cru->cru_clksel_con[39],
- SPI2_PLL_MASK << SPI2_PLL_SHIFT |
- SPI2_DIV_MASK << SPI2_DIV_SHIFT,
+ SPI2_PLL_MASK | SPI2_DIV_MASK,
SPI2_PLL_SELECT_GENERAL << SPI2_PLL_SHIFT |
src_clk_div << SPI2_DIV_SHIFT);
break;
@@ -794,7 +773,7 @@ static int rk3288_clk_ofdata_to_platdata(struct udevice *dev)
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
struct rk3288_clk_priv *priv = dev_get_priv(dev);
- priv->cru = (struct rk3288_cru *)dev_get_addr(dev);
+ priv->cru = (struct rk3288_cru *)devfdt_get_addr(dev);
#endif
return 0;
@@ -803,6 +782,7 @@ static int rk3288_clk_ofdata_to_platdata(struct udevice *dev)
static int rk3288_clk_probe(struct udevice *dev)
{
struct rk3288_clk_priv *priv = dev_get_priv(dev);
+ bool init_clocks = false;
priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
if (IS_ERR(priv->grf))
@@ -813,8 +793,24 @@ static int rk3288_clk_probe(struct udevice *dev)
priv->cru = map_sysmem(plat->dtd.reg[0], plat->dtd.reg[1]);
#endif
- rkclk_init(priv->cru, priv->grf);
+ init_clocks = true;
#endif
+ if (!(gd->flags & GD_FLG_RELOC)) {
+ u32 reg;
+
+ /*
+ * Init clocks in U-Boot proper if the NPLL is runnning. This
+ * indicates that a previous boot loader set up the clocks, so
+ * we need to redo it. U-Boot's SPL does not set this clock.
+ */
+ reg = readl(&priv->cru->cru_mode_con);
+ if (((reg & NPLL_MODE_MASK) >> NPLL_MODE_SHIFT) ==
+ NPLL_MODE_NORMAL)
+ init_clocks = true;
+ }
+
+ if (init_clocks)
+ rkclk_init(priv->cru, priv->grf);
return 0;
}
generated by cgit (git 2.34.1) at 2024-12-28 21:22:18 +0000