leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mx6sxsabresd: Add PFUZE100 PMIC support

Browse Source 
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
This commit is contained in:
Fabio Estevam 2014-07-09 16:13:30 -03:00 committed by Stefano Babic
parent a3df99b50f
commit fa8cf3176c
2 changed files with 97 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

84
board/freescale/mx6sxsabresd/mx6sxsabresd.c
View File

@ -14,10 +14,14 @@
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
#include <asm/io.h>
#include <asm/imx-common/mxc_i2c.h>
#include <linux/sizes.h>
#include <common.h>
#include <fsl_esdhc.h>
#include <mmc.h>
#include <i2c.h>
#include <power/pmic.h>
#include <power/pfuze100_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@ -29,6 +33,11 @@ DECLARE_GLOBAL_DATA_PTR;
PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
PAD_CTL_ODE)
int dram_init(void)
{
gd->ram_size = PHYS_SDRAM_SIZE;
@ -56,9 +65,77 @@ static void setup_iomux_uart(void)
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
}
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
/* I2C1 for PMIC */
struct i2c_pads_info i2c_pad_info1 = {
.scl = {
.i2c_mode = MX6_PAD_GPIO1_IO00__I2C1_SCL | PC,
.gpio_mode = MX6_PAD_GPIO1_IO00__GPIO1_IO_0 | PC,
.gp = IMX_GPIO_NR(1, 0),
},
.sda = {
.i2c_mode = MX6_PAD_GPIO1_IO01__I2C1_SDA | PC,
.gpio_mode = MX6_PAD_GPIO1_IO01__GPIO1_IO_1 | PC,
.gp = IMX_GPIO_NR(1, 1),
},
};
static int pfuze_init(void)
{
struct pmic *p;
int ret;
unsigned int reg;
ret = power_pfuze100_init(I2C_PMIC);
if (ret)
return ret;
p = pmic_get("PFUZE100_PMIC");
ret = pmic_probe(p);
if (ret)
return ret;
pmic_reg_read(p, PFUZE100_DEVICEID, &reg);
printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
/* Set SW1AB standby voltage to 0.975V */
pmic_reg_read(p, PFUZE100_SW1ABSTBY, &reg);
reg &= ~0x3f;
reg |= 0x1b;
pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
/* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
pmic_reg_read(p, PUZE_100_SW1ABCONF, &reg);
reg &= ~0xc0;
reg |= 0x40;
pmic_reg_write(p, PUZE_100_SW1ABCONF, reg);
/* Set SW1C standby voltage to 0.975V */
pmic_reg_read(p, PFUZE100_SW1CSTBY, &reg);
reg &= ~0x3f;
reg |= 0x1b;
pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
/* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
pmic_reg_read(p, PFUZE100_SW1CCONF, &reg);
reg &= ~0xc0;
reg |= 0x40;
pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
/* Enable power of VGEN5 3V3, needed for SD3 */
pmic_reg_read(p, PFUZE100_VGEN5VOL, &reg);
reg &= ~0x1F;
reg |= 0x1F;
pmic_reg_write(p, PFUZE100_VGEN5VOL, reg);
return 0;
}
int board_early_init_f(void)
{
setup_iomux_uart();
setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
return 0;
}
@ -87,6 +164,13 @@ int board_init(void)
return 0;
}
int board_late_init(void)
{
pfuze_init();
return 0;
}
int checkboard(void)
{
puts("Board: MX6SX SABRE SDB\n");

13
include/configs/mx6sxsabresd.h
View File

@ -28,6 +28,7 @@
#define CONFIG_SYS_MALLOC_LEN (3 * SZ_1M)
#define CONFIG_BOARD_EARLY_INIT_F
#define CONFIG_BOARD_LATE_INIT
#define CONFIG_MXC_GPIO
#define CONFIG_MXC_UART
@ -168,6 +169,18 @@
#define CONFIG_CMD_FAT
#define CONFIG_DOS_PARTITION
/* I2C Configs */
#define CONFIG_CMD_I2C
#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_MXC
#define CONFIG_SYS_I2C_SPEED 100000
/* PMIC */
#define CONFIG_POWER
#define CONFIG_POWER_I2C
#define CONFIG_POWER_PFUZE100
#define CONFIG_POWER_PFUZE100_I2C_ADDR 0x08
/* FLASH and environment organization */
#define CONFIG_SYS_NO_FLASH