diff options
| -rw-r--r-- | board/freescale/mx6qarm2/mx6qarm2.c | 8 | ||||
| -rw-r--r-- | board/freescale/mx6qsabreauto/mx6qsabreauto.c | 34 | ||||
| -rw-r--r-- | board/freescale/mx6qsabrelite/mx6qsabrelite.c | 10 | ||||
| -rw-r--r-- | board/freescale/mx6qsabresd/mx6qsabresd.c | 64 | ||||
| -rw-r--r-- | board/freescale/mx6slevk/mx6slevk.c | 36 |
5 files changed, 151 insertions, 1 deletions
diff --git a/board/freescale/mx6qarm2/mx6qarm2.c b/board/freescale/mx6qarm2/mx6qarm2.c index 526b36b..d427eff 100644 --- a/board/freescale/mx6qarm2/mx6qarm2.c +++ b/board/freescale/mx6qarm2/mx6qarm2.c @@ -249,3 +249,11 @@ int checkboard(void) return 0; } + +#ifdef CONFIG_LDO_BYPASS_CHECK +/* no external pmic, always ldo_enable */ +void ldo_mode_set(int ldo_bypass) +{ + return; +} +#endif diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c index 245b1a8..f7496c2 100644 --- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c +++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c @@ -207,6 +207,40 @@ static int setup_pmic_voltages(void) return 0; } + +#ifdef CONFIG_LDO_BYPASS_CHECK +void ldo_mode_set(int ldo_bypass) +{ + unsigned char value; + /* 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 */ + if (i2c_read(0x8, 0x20, 1, &value, 1)) { + printf("Read SW1AB error!\n"); + return; + } + value &= ~0x3f; + value |= 0x2d; + if (i2c_write(0x8, 0x20, 1, &value, 1)) { + printf("Set SW1AB error!\n"); + return; + } + /* increase VDDSOC to 1.425V */ + if (i2c_read(0x8, 0x2e, 1, &value, 1)) { + printf("Read SW1C error!\n"); + return; + } + value &= ~0x3f; + value |= 0x2d; + if (i2c_write(0x8, 0x2e, 1, &value, 1)) { + printf("Set SW1C error!\n"); + return; + } + } +} +#endif #endif static void setup_iomux_uart(void) diff --git a/board/freescale/mx6qsabrelite/mx6qsabrelite.c b/board/freescale/mx6qsabrelite/mx6qsabrelite.c index 9f9cac8..de92aac 100644 --- a/board/freescale/mx6qsabrelite/mx6qsabrelite.c +++ b/board/freescale/mx6qsabrelite/mx6qsabrelite.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. + * Copyright (C) 2010-2013 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -851,3 +851,11 @@ int misc_init_r(void) #endif return 0; } + +#ifdef CONFIG_LDO_BYPASS_CHECK +/* no external pmic, always ldo_enable */ +void ldo_mode_set(int ldo_bypass) +{ + return; +} +#endif diff --git a/board/freescale/mx6qsabresd/mx6qsabresd.c b/board/freescale/mx6qsabresd/mx6qsabresd.c index 26445d4..335e32c 100644 --- a/board/freescale/mx6qsabresd/mx6qsabresd.c +++ b/board/freescale/mx6qsabresd/mx6qsabresd.c @@ -24,6 +24,7 @@ #include <asm/arch/imx-regs.h> #include <asm/arch/iomux.h> #include <asm/arch/mx6-pins.h> +#include <asm/arch/sys_proto.h> #include <asm/errno.h> #include <asm/gpio.h> #include <asm/imx-common/iomux-v3.h> @@ -185,6 +186,7 @@ static void setup_iomux_uart(void) static int setup_pmic_voltages(void) { unsigned char value, rev_id = 0 ; + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); if (!i2c_probe(0x8)) { if (i2c_read(0x8, 0, 1, &value, 1)) { @@ -273,6 +275,68 @@ static int setup_pmic_voltages(void) return 0; } + +#ifdef CONFIG_LDO_BYPASS_CHECK +void ldo_mode_set(int ldo_bypass) +{ + unsigned char value; + /* 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 */ + if (i2c_read(0x8, 0x20, 1, &value, 1)) { + printf("Read SW1AB error!\n"); + return; + } + value &= ~0x3f; + value |= 0x2d; + if (i2c_write(0x8, 0x20, 1, &value, 1)) { + printf("Set SW1AB error!\n"); + return; + } + /* increase VDDSOC to 1.425V */ + if (i2c_read(0x8, 0x2e, 1, &value, 1)) { + printf("Read SW1C error!\n"); + return; + } + value &= ~0x3f; + value |= 0x2d; + if (i2c_write(0x8, 0x2e, 1, &value, 1)) { + printf("Set SW1C error!\n"); + return; + } + } + /* switch to ldo_bypass mode , boot on 800Mhz */ + if (ldo_bypass) { + /* decrease VDDARM to 1.175V */ + if (i2c_read(0x8, 0x20, 1, &value, 1)) { + printf("Read SW1AB error!\n"); + return; + } + value &= ~0x3f; + value |= 0x23; + if (i2c_write(0x8, 0x20, 1, &value, 1)) { + printf("Set SW1AB error!\n"); + return; + } + /* increase VDDSOC to 1.175V */ + if (i2c_read(0x8, 0x2e, 1, &value, 1)) { + printf("Read SW1C error!\n"); + return; + } + value &= ~0x3f; + value |= 0x23; + if (i2c_write(0x8, 0x2e, 1, &value, 1)) { + printf("Set SW1C error!\n"); + return; + } + + set_anatop_bypass(); + printf("switch to ldo_bypass mode!\n"); + } +} +#endif #endif diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c index f45f335..c4fdd8b 100644 --- a/board/freescale/mx6slevk/mx6slevk.c +++ b/board/freescale/mx6slevk/mx6slevk.c @@ -181,6 +181,42 @@ static int setup_pmic_voltages(void) return 0; } + +#ifdef CONFIG_LDO_BYPASS_CHECK +void ldo_mode_set(int ldo_bypass) +{ + unsigned char value; + /* swith to ldo_bypass mode */ + if (ldo_bypass) { + /* decrease VDDARM to 1.15V */ + if (i2c_read(0x8, 0x20, 1, &value, 1)) { + printf("Read SW1AB error!\n"); + return; + } + value &= ~0x3f; + value |= 0x22; + if (i2c_write(0x8, 0x20, 1, &value, 1)) { + printf("Set SW1AB error!\n"); + return; + } + /* increase VDDSOC to 1.15V */ + if (i2c_read(0x8, 0x2e, 1, &value, 1)) { + printf("Read SW1C error!\n"); + return; + } + value &= ~0x3f; + value |= 0x22; + if (i2c_write(0x8, 0x2e, 1, &value, 1)) { + printf("Set SW1C error!\n"); + return; + } + + set_anatop_bypass(); + printf("switch to ldo_bypass mode!\n"); + } + +} +#endif #endif int board_early_init_f(void) |