[glsdk/meta-ti-glsdk.git] / recipes-bsp / u-boot / u-boot / 2011.09git / 0006-am335x-evm-Fix-bone-pmic-shut-down-over-USB-power.patch
diff --git a/recipes-bsp/u-boot/u-boot/2011.09git/0006-am335x-evm-Fix-bone-pmic-shut-down-over-USB-power.patch b/recipes-bsp/u-boot/u-boot/2011.09git/0006-am335x-evm-Fix-bone-pmic-shut-down-over-USB-power.patch
index 2b8caa36362bd21c2f28bdf20ae1c47cb7097c67..158483b227ca33704632efdc4284a9dd8a4251b8 100644 (file)
--- a/recipes-bsp/u-boot/u-boot/2011.09git/0006-am335x-evm-Fix-bone-pmic-shut-down-over-USB-power.patch
+++ b/recipes-bsp/u-boot/u-boot/2011.09git/0006-am335x-evm-Fix-bone-pmic-shut-down-over-USB-power.patch
From 801316091ac7e14cc8fa9b0bd2cdce76bea06991 Mon Sep 17 00:00:00 2001
From: Joel A Fernandes <joelagnel@ti.com>
Date: Thu, 3 Nov 2011 22:19:19 -0500
-Subject: [PATCH] am335x-evm: Fix bone pmic shut down over USB power
-Cc: trini@ti.com
+Subject: [PATCH v2] am335x-evm: Fix bone pmic shut down over USB power
+Cc: trini@ti.com,
+ chase.maupin@ti.com
-* Set DCDC2 to 1.2v for all boards irrespective of board version, or power source.
+* Set DCDC2 to 1.2v for all power sources and board revs except for A1
* Set USB current trip point to 1300mA for all boards and power sources.
* Only Skip setting of MPU frequency to 720MHz for A1 and USB-powered boards.
-Credits to Jason for noticing this. Tested with 20 reboots over USB.
+Credits to Jason for noticing this. Tested with several reboots over USB on a Rev A2/3.
+
+v2 changes:
+Take care of not upping DCDC2 and LDO voltages for A1.
+For A1- only operation done is to set the USB current limit.
Signed-off-by: Jason Kridner <jdk@ti.com>
Signed-off-by: Joel A Fernandes <joelagnel@ti.com>
---
- board/ti/am335x/evm.c | 27 ++++++++++++++-------------
- 1 files changed, 14 insertions(+), 13 deletions(-)
+Chase has volunteered to test this out on his A1.
+
+ board/ti/am335x/evm.c | 31 ++++++++++++++++---------------
+ 1 files changed, 16 insertions(+), 15 deletions(-)
diff --git a/board/ti/am335x/evm.c b/board/ti/am335x/evm.c
-index e95a088..bd3c09a 100644
+index e95a088..bc1119e 100644
--- a/board/ti/am335x/evm.c
+++ b/board/ti/am335x/evm.c
-@@ -483,12 +483,10 @@ void spl_board_init(void)
+@@ -483,12 +483,20 @@ void spl_board_init(void)
if (tps65217_reg_read(STATUS, &pmic_status_reg))
return;
-- /* Only perform PMIC configurations if board rev > A1 */
-- if (!strncmp(header.version, "00A1", 4))
-- return;
--
++ /* Increase USB current limit to 1300mA */
++ if (tps65217_reg_write(PROT_LEVEL_NONE, POWER_PATH,
++ USB_INPUT_CUR_LIMIT_1300MA,
++ USB_INPUT_CUR_LIMIT_MASK))
++ printf("tps65217_reg_write failure\n");
++
+ /* Only perform PMIC configurations if board rev > A1 */
+ if (!strncmp(header.version, "00A1", 4))
+ return;
+
- if (!(pmic_status_reg & PWR_SRC_AC_BITMASK)) {
- printf("No AC power, disabling frequency switch\n");
+ /* Set DCDC2 (MPU) voltage to 1.275V */
return;
}
-@@ -507,14 +505,17 @@ void spl_board_init(void)
- USB_INPUT_CUR_LIMIT_MASK))
+@@ -501,20 +509,13 @@ void spl_board_init(void)
+ LDO_VOLTAGE_OUT_3_3, LDO_MASK))
printf("tps65217_reg_write failure\n");
+- /* Increase USB current limit to 1300mA */
+- if (tps65217_reg_write(PROT_LEVEL_NONE, POWER_PATH,
+- USB_INPUT_CUR_LIMIT_1300MA,
+- USB_INPUT_CUR_LIMIT_MASK))
+- printf("tps65217_reg_write failure\n");
+-
- /* Set DCDC2 (MPU) voltage to 1.275V */
- if (!tps65217_voltage_update(DEFDCDC2,
- DCDC_VOLT_SEL_1275MV)) {
- mpu_pll_config(MPUPLL_M_720);
- } else {
- printf("tps65217_voltage_update failure\n");
-+ /* Only perform PMIC configurations if board rev > A1 */
-+ if (!strncmp(header.version, "00A1", 4))
-+ return;
-+
+ if (!(pmic_status_reg & PWR_SRC_AC_BITMASK)) {
+ printf("No AC power, disabling frequency switch\n");
+ return;