diff options
| author | Robin Gong <B38343@freescale.com> | 2012-06-13 14:44:00 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2012-07-20 13:38:41 +0800 |
| commit | e2dfce71652b251a204bc98b4c6600fd6f90d467 (patch) | |
| tree | e6ec089821b7a5b8d0dbeabab1e7b08df892299b /arch/arm/mach-mx6/mx6q_sabresd_pmic_pfuze100.c | |
| parent | 43f001fd89948b1b6ed534d451353fe269ac3e80 (diff) | |
ENGR00213336 sabresd pfuze: support 1.2G by param which pass by u-boot
There is no fuse data for distinguish 1.2G or 1G, kernel need support passed
param from u-boot that can know 1.2G or 1G. If 1.2G, will configure VDDSOC_IN
&VDDARM_IN to 1.425V by pfuze and VDDSOC&VDDPU to 1.25V by internal ldo
Signed-off-by: Robin Gong <B38343@freescale.com>
Diffstat (limited to 'arch/arm/mach-mx6/mx6q_sabresd_pmic_pfuze100.c')
| -rw-r--r-- | arch/arm/mach-mx6/mx6q_sabresd_pmic_pfuze100.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-mx6/mx6q_sabresd_pmic_pfuze100.c b/arch/arm/mach-mx6/mx6q_sabresd_pmic_pfuze100.c index ed6bfb115d31..2fc47e2a98b0 100644 --- a/arch/arm/mach-mx6/mx6q_sabresd_pmic_pfuze100.c +++ b/arch/arm/mach-mx6/mx6q_sabresd_pmic_pfuze100.c @@ -24,7 +24,11 @@ #include <linux/gpio.h> #include <linux/regulator/machine.h> #include <linux/mfd/pfuze.h> +#include <linux/io.h> #include <mach/irqs.h> +#include "crm_regs.h" +#include "regs-anadig.h" +#include "cpu_op-mx6.h" /* * Convenience conversion. @@ -39,6 +43,10 @@ /* 7-bit I2C bus slave address */ #define PFUZE100_I2C_ADDR (0x08) /*SWBST*/ +#define PFUZE100_SW1AVOL 32 +#define PFUZE100_SW1AVOL_VSEL_M (0x3f<<0) +#define PFUZE100_SW1CVOL 46 +#define PFUZE100_SW1CVOL_VSEL_M (0x3f<<0) #define PFUZE100_SW1ASTANDBY 33 #define PFUZE100_SW1ASTANDBY_STBY_VAL (0x18) #define PFUZE100_SW1ASTANDBY_STBY_M (0x3f<<0) @@ -64,6 +72,7 @@ #define PFUZE100_SWBSTCON1_SWBSTMOD_VAL (0x1<<2) #define PFUZE100_SWBSTCON1_SWBSTMOD_M (0x3<<2) +extern u32 arm_max_freq; #ifdef CONFIG_MX6_INTER_LDO_BYPASS static struct regulator_consumer_supply sw1_consumers[] = { @@ -376,6 +385,29 @@ static struct regulator_init_data vgen6_init = { static int pfuze100_init(struct mc_pfuze *pfuze) { int ret; + unsigned int reg; + if (arm_max_freq == CPU_AT_1_2GHz) { + /*VDDARM_IN 1.425V*/ + ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1AVOL, + PFUZE100_SW1AVOL_VSEL_M, + 0x2d); + if (ret) + goto err; + /*VDDSOC_IN 1.425V*/ + ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1CVOL, + PFUZE100_SW1CVOL_VSEL_M, + 0x2d); + if (ret) + goto err; + /*set VDDSOC&VDDPU to 1.25V*/ + reg = __raw_readl(ANADIG_REG_CORE); + reg &= ~BM_ANADIG_REG_CORE_REG2_TRG; + reg |= BF_ANADIG_REG_CORE_REG2_TRG(0x16); + reg &= ~BM_ANADIG_REG_CORE_REG1_TRG; + reg |= BF_ANADIG_REG_CORE_REG1_TRG(0x16); + __raw_writel(reg, ANADIG_REG_CORE); + + } ret = pfuze_reg_rmw(pfuze, PFUZE100_SW1ASTANDBY, PFUZE100_SW1ASTANDBY_STBY_M, PFUZE100_SW1ASTANDBY_STBY_VAL); |