diff options
author | Jason Liu <jason.hui@linaro.org> | 2011-04-12 16:30:06 +0800 |
---|---|---|
committer | John Rigby <john.rigby@linaro.org> | 2011-06-28 16:06:11 +0100 |
commit | 31c9709d2f3ee966b0e7c0180ffa6240a7bd09ca (patch) | |
tree | b6426190ff6ded45b006dcfb242c862f119b5928 | |
parent | 8d6eafb82d9c9b25e2e0add1e3e4e0fd519d90fe (diff) |
mx53loco: Add power init support
Increase CPU core power to 1.25v via DA9053 PMIC,
and after that CPU can ran to 1GHZ and DDR 400Mhz.
Signed-off-by: Jason Liu <jason.hui@linaro.org>
Signed-off-by: Eric Miao <eric.miao@linaro.org>
-rw-r--r-- | arch/arm/include/asm/arch-mx5/sys_proto.h | 2 | ||||
-rw-r--r-- | board/freescale/mx53loco/mx53loco.c | 93 | ||||
-rw-r--r-- | include/configs/mx53loco.h | 12 |
3 files changed, 107 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mx5/sys_proto.h b/arch/arm/include/asm/arch-mx5/sys_proto.h index f687503ca..2d7e9ed93 100644 --- a/arch/arm/include/asm/arch-mx5/sys_proto.h +++ b/arch/arm/include/asm/arch-mx5/sys_proto.h @@ -27,5 +27,7 @@ u32 get_cpu_rev(void); #define is_soc_rev(rev) ((get_cpu_rev() & 0xFF) - rev) void sdelay(unsigned long); +void pmic_reg_write(u32 reg, u32 value); +u32 pmic_reg_read(u32 reg); #endif diff --git a/board/freescale/mx53loco/mx53loco.c b/board/freescale/mx53loco/mx53loco.c index d032428bc..62ed4005e 100644 --- a/board/freescale/mx53loco/mx53loco.c +++ b/board/freescale/mx53loco/mx53loco.c @@ -35,6 +35,7 @@ #include <mmc.h> #include <fsl_esdhc.h> #include <mxc_gpio.h> +#include <da9053.h> DECLARE_GLOBAL_DATA_PTR; @@ -278,6 +279,93 @@ int board_mmc_init(bd_t *bis) } #endif +static void setup_i2c(unsigned int port_number) +{ + switch (port_number) { + case 0: + /* i2c1 SDA */ + mxc_request_iomux(MX53_PIN_CSI0_D8, + IOMUX_CONFIG_ALT5 | IOMUX_CONFIG_SION); + mxc_iomux_set_input(MX53_I2C1_IPP_SDA_IN_SELECT_INPUT, + INPUT_CTL_PATH0); + mxc_iomux_set_pad(MX53_PIN_CSI0_D8, + PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH | + PAD_CTL_100K_PU | PAD_CTL_PKE_ENABLE | + PAD_CTL_PUE_PULL | + PAD_CTL_ODE_OPENDRAIN_ENABLE); + /* i2c1 SCL */ + mxc_request_iomux(MX53_PIN_CSI0_D9, + IOMUX_CONFIG_ALT5 | IOMUX_CONFIG_SION); + mxc_iomux_set_input(MX53_I2C1_IPP_SCL_IN_SELECT_INPUT, + INPUT_CTL_PATH0); + mxc_iomux_set_pad(MX53_PIN_CSI0_D9, + PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH | + PAD_CTL_100K_PU | PAD_CTL_PKE_ENABLE | + PAD_CTL_PUE_PULL | + PAD_CTL_ODE_OPENDRAIN_ENABLE); + break; + case 1: + /* i2c2 SDA */ + mxc_request_iomux(MX53_PIN_KEY_ROW3, + IOMUX_CONFIG_ALT4 | IOMUX_CONFIG_SION); + mxc_iomux_set_input(MX53_I2C2_IPP_SDA_IN_SELECT_INPUT, + INPUT_CTL_PATH0); + mxc_iomux_set_pad(MX53_PIN_KEY_ROW3, + PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH | + PAD_CTL_100K_PU | PAD_CTL_HYS_ENABLE | + PAD_CTL_ODE_OPENDRAIN_ENABLE); + + /* i2c2 SCL */ + mxc_request_iomux(MX53_PIN_KEY_COL3, + IOMUX_CONFIG_ALT4 | IOMUX_CONFIG_SION); + mxc_iomux_set_input(MX53_I2C2_IPP_SCL_IN_SELECT_INPUT, + INPUT_CTL_PATH0); + mxc_iomux_set_pad(MX53_PIN_KEY_COL3, + PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH | + PAD_CTL_100K_PU | PAD_CTL_HYS_ENABLE | + PAD_CTL_ODE_OPENDRAIN_ENABLE); + break; + default: + printf("Warning: Wrong I2C port number\n"); + break; + } +} + +static void clock_init(void) +{ + int ret; + u32 ref_clk = CONFIG_SYS_MX5_HCLK; + /* + * After increase voltage to 1.25V, We can switch + * CPU clokc to 1Ghz and DDR to 400Mhz safely now + */ + ret = mxc_set_clock(ref_clk, 1000, MXC_ARM_CLK); + if (!ret) + printf("CPU: Switch CPU clock to 1GHZ OK\n"); + else + printf("CPU: Switch CPU clock to 1GHZ failed\n"); + + ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK); + ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK); + if (!ret) + printf("DDR: Switch DDR clock to 400MHz OK\n"); + else + printf("CPU: Switch DDR clock to 1GHZ failed\n"); +} + +static void power_init(void) +{ + unsigned int val; + + /* Set VDDA to 1.25V */ + val = DA9052_BUCKCORE_BCOREEN; + val |= DA_BUCKCORE_VBCORE_1_250V; + pmic_reg_write(DA9053_BUCKCORE_REG, val); + val = pmic_reg_read(DA9053_SUPPLY_REG); + val |= DA9052_SUPPLY_VBCOREGO; + pmic_reg_write(DA9053_SUPPLY_REG, val); +} + int board_early_init_f(void) { setup_iomux_uart(); @@ -291,6 +379,11 @@ int board_init(void) gd->bd->bi_arch_number = MACH_TYPE_MX53_LOCO; gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; +#ifdef CONFIG_I2C_MXC + setup_i2c(0); + power_init(); + clock_init(); +#endif return 0; } diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h index bf545cf9a..cb01b8801 100644 --- a/include/configs/mx53loco.h +++ b/include/configs/mx53loco.h @@ -48,6 +48,18 @@ #define CONFIG_MXC_UART #define CONFIG_SYS_MX53_UART1 +/* I2C Configs */ +#define CONFIG_CMD_I2C +#define CONFIG_HARD_I2C +#define CONFIG_I2C_MXC +#define CONFIG_SYS_I2C_MX53_PORT1 +#define CONFIG_SYS_I2C_SPEED 100000 +#define CONFIG_SYS_I2C_SLAVE 0xfe + +/* PMIC Configs */ +#define CONFIG_DIALOG_PMIC +#define CONFIG_SYS_DIALOG_PMIC_I2C_ADDR 0x48 + /* MMC Configs */ #define CONFIG_FSL_ESDHC #define CONFIG_SYS_FSL_ESDHC_ADDR 0 |