If runs at 1.2GHz, enable ldo, and adjust voltage. Otherwise, do nothing
Signed-off-by: Peng Fan Peng.Fan@freescale.com Signed-off-by: Robin Gong b38343@freescale.com --- board/freescale/mx6qsabreauto/mx6qsabreauto.c | 31 +++++++++++++++++++++++++++ include/configs/mx6qsabreauto.h | 2 ++ 2 files changed, 33 insertions(+)
diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c index b29ff2b..84ac9b7 100644 --- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c +++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c @@ -29,6 +29,7 @@ #include <asm/arch/crm_regs.h> #include <pca953x.h> #include <power/pmic.h> +#include <power/pfuze100_pmic.h> #include "../common/pfuze.h"
DECLARE_GLOBAL_DATA_PTR; @@ -512,6 +513,7 @@ int board_spi_cs_gpio(unsigned bus, unsigned cs) } #endif
+static struct pmic *pfuze; int power_init_board(void) { struct pmic *p; @@ -520,6 +522,7 @@ int power_init_board(void) p = pfuze_common_init(I2C_PMIC); if (!p) return -ENODEV; + pfuze = p;
ret = pfuze_mode_init(p, APS_PFM); if (ret < 0) @@ -528,6 +531,34 @@ int power_init_board(void) return 0; }
+#ifdef CONFIG_LDO_BYPASS_CHECK +void ldo_mode_set(int ldo_bypass) +{ + unsigned int value; + struct pmic *p = pfuze; + + if (!p) + return; + + /* increase VDDARM/VDDSOC to support 1.2G chip */ + if (check_1_2G()) { + ldo_bypass = 0; /* ldo_enable on 1.2G chip */ + printf("1.2G chip, increase VDDARM_IN/VDDSOC_IN\n"); + /* increase VDDARM to 1.425V */ + pmic_reg_read(p, PFUZE100_SW1ABVOL, &value); + value &= ~0x3f; + value |= PFUZE100_SW1ABC_SETP(14250); + pmic_reg_write(p, PFUZE100_SW1ABVOL, value); + + /* increase VDDSOC to 1.425V */ + pmic_reg_read(p, PFUZE100_SW1CVOL, &value); + value &= ~0x3f; + value |= PFUZE100_SW1ABC_SETP(14250); + pmic_reg_write(p, PFUZE100_SW1CVOL, value); + } +} +#endif + #ifdef CONFIG_CMD_BMODE static const struct boot_mode board_boot_modes[] = { /* 4 bit bus width */ diff --git a/include/configs/mx6qsabreauto.h b/include/configs/mx6qsabreauto.h index 51042ca..5b4fb65 100644 --- a/include/configs/mx6qsabreauto.h +++ b/include/configs/mx6qsabreauto.h @@ -80,4 +80,6 @@ #define CONFIG_POWER_PFUZE100 #define CONFIG_POWER_PFUZE100_I2C_ADDR 0x08
+#define CONFIG_LDO_BYPASS_CHECK + #endif /* __MX6QSABREAUTO_CONFIG_H */