diff options
author | John Rigby <john.rigby@linaro.org> | 2011-07-23 23:02:16 -0600 |
---|---|---|
committer | John Rigby <john.rigby@linaro.org> | 2011-12-18 21:28:50 -0700 |
commit | f78e82171acf2b92d5d8a0aae9799c67812a6154 (patch) | |
tree | cdc92913bb901ba35c71a89d24a53537fccdf310 | |
parent | d231f2a6b591e803a8dc7588f79f1b599cd49e2b (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 13d12ee1a..067bb3fa7 100644 --- a/arch/arm/include/asm/arch-mx5/sys_proto.h +++ b/arch/arm/include/asm/arch-mx5/sys_proto.h @@ -27,6 +27,8 @@ 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); void set_chipselect_size(int const); /* diff --git a/board/freescale/mx53loco/mx53loco.c b/board/freescale/mx53loco/mx53loco.c index 57170ce04..bcd12f240 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 <asm/gpio.h> +#include <da9053.h> DECLARE_GLOBAL_DATA_PTR; @@ -286,6 +287,93 @@ 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(); @@ -298,6 +386,11 @@ int board_init(void) { 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 e26d97785..3a39b02bf 100644 --- a/include/configs/mx53loco.h +++ b/include/configs/mx53loco.h @@ -47,6 +47,18 @@ #define CONFIG_MXC_UART #define CONFIG_MXC_UART_BASE UART1_BASE +/* 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 |