diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/rockchip/rk3399/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/rockchip/rk3399/clock.c | 104 | ||||
| -rw-r--r-- | src/soc/rockchip/rk3399/include/soc/addressmap.h | 4 | ||||
| -rw-r--r-- | src/soc/rockchip/rk3399/include/soc/clock.h | 3 |
4 files changed, 112 insertions, 0 deletions
diff --git a/src/soc/rockchip/rk3399/Makefile.inc b/src/soc/rockchip/rk3399/Makefile.inc index 40c652fcf2..bdd9d3eb26 100644 --- a/src/soc/rockchip/rk3399/Makefile.inc +++ b/src/soc/rockchip/rk3399/Makefile.inc @@ -51,6 +51,7 @@ ramstage-y += sdram.c ramstage-y += ../common/spi.c ramstage-$(CONFIG_DRIVERS_UART) += ../common/uart.c ramstage-y += clock.c +ramstage-y += ../common/i2c.c ramstage-y += soc.c ramstage-y += timer.c diff --git a/src/soc/rockchip/rk3399/clock.c b/src/soc/rockchip/rk3399/clock.c index 8a2b3517f6..d706c9329f 100644 --- a/src/soc/rockchip/rk3399/clock.c +++ b/src/soc/rockchip/rk3399/clock.c @@ -19,6 +19,7 @@ #include <soc/addressmap.h> #include <soc/clock.h> #include <soc/grf.h> +#include <soc/i2c.h> #include <soc/soc.h> #include <stdint.h> #include <stdlib.h> @@ -94,6 +95,14 @@ enum { SPI3_DIV_CON_MASK = 0x7f, SPI3_DIV_CON_SHIFT = 0x0, + /* PMUCRU_CLKSEL_CON2 */ + I2C_DIV_CON_MASK = 0x7f, + I2C8_DIV_CON_SHIFT = 8, + I2C0_DIV_CON_SHIFT = 0, + + /* PMUCRU_CLKSEL_CON3 */ + I2C4_DIV_CON_SHIFT = 0, + /* CLKSEL_CON0 */ ACLKM_CORE_L_DIV_CON_MASK = 0x1f, ACLKM_CORE_L_DIV_CON_SHIFT = 8, @@ -166,6 +175,27 @@ enum { CLK_SPI2_PLL_SEL_SHIFT = 7, CLK_SPI2_PLL_DIV_CON_SHIFT = 0, + /* CLKSEL_CON61 */ + CLK_I2C_PLL_SEL_MASK = 1, + CLK_I2C_PLL_SEL_CPLL = 0, + CLK_I2C_PLL_SEL_GPLL = 1, + CLK_I2C5_PLL_SEL_SHIFT = 15, + CLK_I2C5_DIV_CON_SHIFT = 8, + CLK_I2C1_PLL_SEL_SHIFT = 7, + CLK_I2C1_DIV_CON_SHIFT = 0, + + /* CLKSEL_CON62 */ + CLK_I2C6_PLL_SEL_SHIFT = 15, + CLK_I2C6_DIV_CON_SHIFT = 8, + CLK_I2C2_PLL_SEL_SHIFT = 7, + CLK_I2C2_DIV_CON_SHIFT = 0, + + /* CLKSEL_CON63 */ + CLK_I2C7_PLL_SEL_SHIFT = 15, + CLK_I2C7_DIV_CON_SHIFT = 8, + CLK_I2C3_PLL_SEL_SHIFT = 7, + CLK_I2C3_DIV_CON_SHIFT = 0, + /* CRU_SOFTRST_CON4 */ RESETN_DDR0_REQ_MASK = 1, RESETN_DDR0_REQ_SHIFT = 8, @@ -471,3 +501,77 @@ void rkclk_configure_spi(unsigned int bus, unsigned int hz) printk(BIOS_ERR, "do not support this spi bus\n"); } } + +#define I2C_CLK_REG_VALUE(bus, clk_div) \ + RK_CLRSETBITS(I2C_DIV_CON_MASK << \ + CLK_I2C ##bus## _DIV_CON_SHIFT | \ + CLK_I2C_PLL_SEL_MASK << \ + CLK_I2C ##bus## _PLL_SEL_SHIFT, \ + (clk_div - 1) << \ + CLK_I2C ##bus## _DIV_CON_SHIFT | \ + CLK_I2C_PLL_SEL_GPLL << \ + CLK_I2C ##bus## _PLL_SEL_SHIFT) +#define PMU_I2C_CLK_REG_VALUE(bus, clk_div) \ + RK_CLRSETBITS(I2C_DIV_CON_MASK << I2C ##bus## _DIV_CON_SHIFT, \ + (clk_div - 1) << I2C ##bus## _DIV_CON_SHIFT) + +static void rkclk_configure_i2c(unsigned int bus, unsigned int hz) +{ + int src_clk_div; + int pll; + + /* i2c0,4,8 src clock from ppll, i2c1,2,3,5,6,7 src clock from gpll*/ + pll = (bus == 0 || bus == 4 || bus == 8) ? PPLL_HZ : GPLL_HZ; + src_clk_div = pll / hz; + assert((src_clk_div - 1 < 127) && (src_clk_div * hz == pll)); + + switch (bus) { + case 0: + write32(&pmucru_ptr->pmucru_clksel[2], + PMU_I2C_CLK_REG_VALUE(0, src_clk_div)); + break; + case 1: + write32(&cru_ptr->clksel_con[61], + I2C_CLK_REG_VALUE(1, src_clk_div)); + break; + case 2: + write32(&cru_ptr->clksel_con[62], + I2C_CLK_REG_VALUE(2, src_clk_div)); + break; + case 3: + write32(&cru_ptr->clksel_con[63], + I2C_CLK_REG_VALUE(3, src_clk_div)); + break; + case 4: + write32(&pmucru_ptr->pmucru_clksel[3], + PMU_I2C_CLK_REG_VALUE(4, src_clk_div)); + break; + case 5: + write32(&cru_ptr->clksel_con[61], + I2C_CLK_REG_VALUE(5, src_clk_div)); + break; + case 6: + write32(&cru_ptr->clksel_con[62], + I2C_CLK_REG_VALUE(6, src_clk_div)); + break; + case 7: + write32(&cru_ptr->clksel_con[63], + I2C_CLK_REG_VALUE(7, src_clk_div)); + break; + case 8: + write32(&pmucru_ptr->pmucru_clksel[2], + PMU_I2C_CLK_REG_VALUE(8, src_clk_div)); + break; + default: + printk(BIOS_ERR, "do not support this i2c bus\n"); + } +} + +uint32_t rkclk_i2c_clock_for_bus(unsigned bus) +{ + uint32_t freq = 198 * 1000 * 1000; + + rkclk_configure_i2c(bus, freq); + + return freq; +} diff --git a/src/soc/rockchip/rk3399/include/soc/addressmap.h b/src/soc/rockchip/rk3399/include/soc/addressmap.h index 427122c868..90d1356298 100644 --- a/src/soc/rockchip/rk3399/include/soc/addressmap.h +++ b/src/soc/rockchip/rk3399/include/soc/addressmap.h @@ -56,4 +56,8 @@ #define TSADC_BASE 0xff260000 #define SARADC_BASE 0xff100000 + +#define IC_BASES { I2C0_BASE, I2C1_BASE, I2C2_BASE, I2C3_BASE, \ + I2C4_BASE, I2C5_BASE, I2C6_BASE, I2C7_BASE, I2C8_BASE } + #endif /* __SOC_ROCKCHIP_RK3399_ADDRESSMAP_H__ */ diff --git a/src/soc/rockchip/rk3399/include/soc/clock.h b/src/soc/rockchip/rk3399/include/soc/clock.h index cb4d32568a..4c5a455a8b 100644 --- a/src/soc/rockchip/rk3399/include/soc/clock.h +++ b/src/soc/rockchip/rk3399/include/soc/clock.h @@ -104,4 +104,7 @@ void rkclk_init(void); void rkclk_configure_cpu(enum apll_l_frequencies apll_l_freq); void rkclk_configure_ddr(unsigned int hz); void rkclk_configure_spi(unsigned int bus, unsigned int hz); +void rkclk_ddr_reset(u32 ch, u32 ctl, u32 phy); +uint32_t rkclk_i2c_clock_for_bus(unsigned bus); + #endif /* __SOC_ROCKCHIP_RK3399_CLOCK_H__ */ |