From: Eric Miao eric.miao@canonical.com
A quick support for mx53 QuickStart board with MC34708.
Signed-off-by: Eric Miao eric.miao@linaro.org --- board/freescale/mx53loco/mx53loco.c | 57 +++++++++++++++++++++++++++-------- include/configs/mx53loco.h | 3 +- 2 files changed, 46 insertions(+), 14 deletions(-)
diff --git a/board/freescale/mx53loco/mx53loco.c b/board/freescale/mx53loco/mx53loco.c index 158ec32..82048e6 100644 --- a/board/freescale/mx53loco/mx53loco.c +++ b/board/freescale/mx53loco/mx53loco.c @@ -353,21 +353,48 @@ static void clock_init(void) printf("CPU: Switch DDR clock to 1GHZ failed\n"); }
+static int pmic_mc34708 = 0; + 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); - - /* Set Vcc peripheral to 1.35V */ - pmic_reg_write(0x2f, 0x62); - pmic_reg_write(0x3c, 0x62); + unsigned char buf[4] = { 0, 0, 0, 0 }; + + if (i2c_probe(0x08) == 0) + pmic_mc34708 = 1; + + if (pmic_mc34708) { + i2c_read(0x8, 24, 1, &buf[0], 3); + + /* increase VDDGP as 1.25V for 1GHZ on SW1 */ + buf[2] = 0x30; + i2c_write(0x8, 24, 1, buf, 3); + + i2c_read(0x8, 25, 1, &buf[0], 3); + + /* increase VCC as 1.3V on SW2 */ + buf[2] = 0x34; + i2c_write(0x8, 25, 1, buf, 3); + + /*change global reset time as 4s*/ + i2c_read(0x8, 15, 1, &buf[0], 3); + + buf[1] |= 0x1; + buf[1] &= ~0x2; + i2c_write(0x8, 15, 1, buf, 3); + } else { + /* 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); + + /* Set Vcc peripheral to 1.35V */ + pmic_reg_write(0x2f, 0x62); + pmic_reg_write(0x3c, 0x62); + } }
int board_early_init_f(void) @@ -393,7 +420,11 @@ int board_init(void)
int checkboard(void) { - puts("Board: MX53 LOCO\n"); + puts("Board: MX53 LOCO"); + + if (pmic_mc34708) + puts(" with MC34708");
+ puts("\n"); return 0; } diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h index 644c853..04d2ee3 100644 --- a/include/configs/mx53loco.h +++ b/include/configs/mx53loco.h @@ -56,7 +56,8 @@
/* PMIC Configs */ #define CONFIG_DIALOG_PMIC -#define CONFIG_SYS_DIALOG_PMIC_I2C_ADDR 0x48 +#define CONFIG_SYS_DIALOG_PMIC_I2C_ADDR 0x48 +#define CONFIG_SYS_MC34708_I2C_ADDR 0x08
/* MMC Configs */ #define CONFIG_FSL_ESDHC