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| author | Zou Weihua -wayne zou <b36644@freescale.com> | 2011-05-12 15:15:58 +0800 |
|---|---|---|
| committer | Robby Cai <R63905@freescale.com> | 2011-05-20 12:53:34 +0800 |
| commit | ecea7efd8a1683f68ad56ac420987a44dbae5c4d (patch) | |
| tree | 69596881429d09b59a08ada7406c572b28db4426 /board | |
| parent | 8cb28bb7c7031551672b00d75a272bd31709c9d0 (diff) | |
| download | u-boot-imx-ecea7efd8a1683f68ad56ac420987a44dbae5c4d.zip u-boot-imx-ecea7efd8a1683f68ad56ac420987a44dbae5c4d.tar.gz u-boot-imx-ecea7efd8a1683f68ad56ac420987a44dbae5c4d.tar.bz2 | |
ENGR00143302 Add mc34708 pmic support on loco/Ripley board
Add mc34708 pmic support on loco/Ripley board
Signed-off-by: Zou Weihua -wayne zou <b36644@freescale.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/mx53_loco/mx53_loco.c | 57 |
1 files changed, 47 insertions, 10 deletions
diff --git a/board/freescale/mx53_loco/mx53_loco.c b/board/freescale/mx53_loco/mx53_loco.c index 0c38e3e..9915141 100644 --- a/board/freescale/mx53_loco/mx53_loco.c +++ b/board/freescale/mx53_loco/mx53_loco.c @@ -305,14 +305,6 @@ static void setup_i2c(unsigned int module_base) void setup_pmic_voltages(void) { - int value; - i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); - /* increase VDDGP as 1.25V for 1GHZ */ - value = 0x5e; - i2c_write(0x48, 0x2e, 1, &value, 1); - i2c_read(0x48, 60, 1, &value, 1); - value |= 0x1; - i2c_write(0x48, 60, 1, &value, 1); } #endif @@ -564,10 +556,13 @@ int board_init(void) #ifdef CONFIG_I2C_MXC setup_i2c(CONFIG_SYS_I2C_PORT); + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + /* delay pmic i2c access to board_late_init() + due to i2c_probe fail here on loco/ripley board. */ /* Increase VDDGP voltage */ - setup_pmic_voltages(); + /* setup_pmic_voltages(); */ /* Switch to 1GHZ */ - clk_config(CONFIG_REF_CLK_FREQ, 1000, CPU_CLK); + /* clk_config(CONFIG_REF_CLK_FREQ, 1000, CPU_CLK); */ #endif #if defined(CONFIG_DWC_AHSATA) @@ -700,6 +695,48 @@ int check_recovery_cmd_file(void) int board_late_init(void) { + int value; + unsigned char buf[4] = { 0 }; + + if (!i2c_probe(0x8)) { + if (i2c_read(0x8, 24, 1, &buf[0], 3)) { + printf("%s:i2c_read:error\n", __func__); + return -1; + } + /* increase VDDGP as 1.25V for 1GHZ on SW1 */ + buf[2] = 0x30; + if (i2c_write(0x8, 24, 1, buf, 3)) { + printf("%s:i2c_write:error\n", __func__); + return -1; + } + if (i2c_read(0x8, 25, 1, &buf[0], 3)) { + printf("%s:i2c_read:error\n", __func__); + return -1; + } + /* increase VCC as 1.35V on SW2 */ + buf[2] = 0x38; + if (i2c_write(0x8, 25, 1, buf, 3)) { + printf("%s:i2c_write:error\n", __func__); + return -1; + } + /* set up rev #1 for loco/ripley board */ + setup_board_rev(1); + /* Switch to 1GHZ */ + clk_config(CONFIG_REF_CLK_FREQ, 1000, CPU_CLK); + } else if (!i2c_probe(0x48)) { + /* increase VDDGP as 1.25V for 1GHZ */ + value = 0x5e; + i2c_write(0x48, 0x2e, 1, &value, 1); + i2c_read(0x48, 60, 1, &value, 1); + value |= 0x1; + i2c_write(0x48, 60, 1, &value, 1); + /* set up rev #0 for loco/da9053 board */ + setup_board_rev(0); + /* Switch to 1GHZ */ + clk_config(CONFIG_REF_CLK_FREQ, 1000, CPU_CLK); + } else + printf("Error: Dont't found mc34708 or da9052 on board.\n"); + return 0; } |