diff options
Diffstat (limited to 'recipes/u-boot/u-boot-git/beagleboard/0004-OMAP3-Set-VAUX2-to-1.8V-for-EHCI-PHY-on-Beagle-Rev-C.patch')
| -rw-r--r-- | recipes/u-boot/u-boot-git/beagleboard/0004-OMAP3-Set-VAUX2-to-1.8V-for-EHCI-PHY-on-Beagle-Rev-C.patch | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/recipes/u-boot/u-boot-git/beagleboard/0004-OMAP3-Set-VAUX2-to-1.8V-for-EHCI-PHY-on-Beagle-Rev-C.patch b/recipes/u-boot/u-boot-git/beagleboard/0004-OMAP3-Set-VAUX2-to-1.8V-for-EHCI-PHY-on-Beagle-Rev-C.patch new file mode 100644 index 0000000000..549b3fbddf --- /dev/null +++ b/recipes/u-boot/u-boot-git/beagleboard/0004-OMAP3-Set-VAUX2-to-1.8V-for-EHCI-PHY-on-Beagle-Rev-C.patch @@ -0,0 +1,143 @@ +From efc587fb24a5246f5a436a057320687a1b7847c6 Mon Sep 17 00:00:00 2001 +From: Steve Sakoman <steve@sakoman.com> +Date: Wed, 10 Feb 2010 15:23:19 -0800 +Subject: [PATCH 04/37] OMAP3: Set VAUX2 to 1.8V for EHCI PHY on Beagle Rev C4 boards + +--- + board/ti/beagle/beagle.c | 5 +++++ + drivers/power/twl4030.c | 45 +++++++++++++++++++++++++-------------------- + include/twl4030.h | 15 +++++++++++++++ + 3 files changed, 45 insertions(+), 20 deletions(-) + +diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c +index ba16dd7..b4ea7e6 100644 +--- a/board/ti/beagle/beagle.c ++++ b/board/ti/beagle/beagle.c +@@ -120,6 +120,11 @@ int misc_init_r(void) + case REVISION_C4: + printf("C4\n"); + MUX_BEAGLE_C(); ++ /* Set VAUX2 to 1.8V for EHCI PHY */ ++ twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, ++ TWL4030_PM_RECEIVER_VAUX2_VSEL_18, ++ TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, ++ TWL4030_PM_RECEIVER_DEV_GRP_P1); + break; + case REVISION_D: + printf("D\n"); +diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c +index eb066cb..f354834 100644 +--- a/drivers/power/twl4030.c ++++ b/drivers/power/twl4030.c +@@ -59,57 +59,62 @@ void twl4030_power_reset_init(void) + } + } + +- +-/* +- * Power Init +- */ +-#define DEV_GRP_P1 0x20 +-#define VAUX3_VSEL_28 0x03 +-#define DEV_GRP_ALL 0xE0 +-#define VPLL2_VSEL_18 0x05 +-#define VDAC_VSEL_18 0x03 +- + void twl4030_power_init(void) + { + unsigned char byte; + + /* set VAUX3 to 2.8V */ +- byte = DEV_GRP_P1; ++ byte = TWL4030_PM_RECEIVER_DEV_GRP_P1; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VAUX3_DEV_GRP); +- byte = VAUX3_VSEL_28; ++ byte = TWL4030_PM_RECEIVER_VAUX3_VSEL_28; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VAUX3_DEDICATED); + + /* set VPLL2 to 1.8V */ +- byte = DEV_GRP_ALL; ++ byte = TWL4030_PM_RECEIVER_DEV_GRP_ALL; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VPLL2_DEV_GRP); +- byte = VPLL2_VSEL_18; ++ byte = TWL4030_PM_RECEIVER_VPLL2_VSEL_18; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VPLL2_DEDICATED); + + /* set VDAC to 1.8V */ +- byte = DEV_GRP_P1; ++ byte = TWL4030_PM_RECEIVER_DEV_GRP_P1; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VDAC_DEV_GRP); +- byte = VDAC_VSEL_18; ++ byte = TWL4030_PM_RECEIVER_VDAC_VSEL_18; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VDAC_DEDICATED); + } + +-#define VMMC1_VSEL_30 0x02 +- + void twl4030_power_mmc_init(void) + { + unsigned char byte; + +- byte = DEV_GRP_P1; ++ byte = TWL4030_PM_RECEIVER_DEV_GRP_P1; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VMMC1_DEV_GRP); + + /* 3 Volts */ +- byte = VMMC1_VSEL_30; ++ byte = TWL4030_PM_RECEIVER_VMMC1_VSEL_30; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VMMC1_DEDICATED); + } ++ ++/* ++ * Generic function to select Device Group and Voltage ++ */ ++void twl4030_pmrecv_vsel_cfg(u8 vsel_reg, u8 vsel_val, ++ u8 dev_grp, u8 dev_grp_sel) ++{ ++ /* Select the Device Group */ ++ twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, dev_grp_sel, ++ dev_grp); ++ ++ /* Select the Voltage */ ++ twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, vsel_val, ++ vsel_reg); ++} ++ ++ +diff --git a/include/twl4030.h b/include/twl4030.h +index 2b2f5ae..cc99403 100644 +--- a/include/twl4030.h ++++ b/include/twl4030.h +@@ -471,6 +471,21 @@ + #define TWL4030_USB_PHY_CLK_CTRL_STS 0xFF + + /* ++ * Voltage Selection in PM Receiver Module ++ */ ++#define TWL4030_PM_RECEIVER_VAUX2_VSEL_18 0x05 ++#define TWL4030_PM_RECEIVER_VAUX3_VSEL_28 0x03 ++#define TWL4030_PM_RECEIVER_VPLL2_VSEL_18 0x05 ++#define TWL4030_PM_RECEIVER_VDAC_VSEL_18 0x03 ++#define TWL4030_PM_RECEIVER_VMMC1_VSEL_30 0x02 ++ ++/* ++ * Device Selection in PM Receiver Module ++ */ ++#define TWL4030_PM_RECEIVER_DEV_GRP_P1 0x20 ++#define TWL4030_PM_RECEIVER_DEV_GRP_ALL 0xE0 ++ ++/* + * Convience functions to read and write from TWL4030 + * + * chip_no is the i2c address, it must be one of the chip addresses +-- +1.6.6.1 + |