Set all switches APS mode in normal and PFM mode in standby. So when
mx6 entering DSM mode, the power number can be decreased. There is
no impact for mx6 in run mode.
Changes for boards:
-mx6 sabreauto
-mx6 sabresd
-mx6slevk
-mx6sxsabresd
Signed-off-by: Ye.Li b37...@freescale.com
---
Changes since v1:
- Correct the return code per Fabio's comments.
board/freescale/mx6qsabreauto/mx6qsabreauto.c | 36 +
board/freescale/mx6sabresd/mx6sabresd.c | 36 +
board/freescale/mx6slevk/mx6slevk.c | 36 +
board/freescale/mx6sxsabresd/mx6sxsabresd.c | 36 +
4 files changed, 144 insertions(+), 0 deletions(-)
diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c
b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
index 76b024b..9e79915 100644
--- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c
+++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
@@ -263,6 +263,37 @@ int board_init(void)
return 0;
}
+/* set all switches APS in normal and PFM mode in standby */
+static int pfuze_setup_mode(struct pmic *p, int chip)
+{
+ unsigned char offset, i, switch_num, value;
+
+ if (!chip) {
+ /* pfuze100 */
+ switch_num = 6;
+ offset = 0x31;
+ } else {
+ /* pfuze200 */
+ switch_num = 4;
+ offset = 0x38;
+ }
+
+ value = 0xc;
+ if (pmic_reg_write(p, 0x23, value)) {
+ printf(Set SW1AB mode error!\n);
+ return -1;
+ }
+
+ for (i = 0; i switch_num - 1; i++) {
+ if (pmic_reg_write(p, offset + i * 7, value)) {
+ printf(Set switch%x mode error!\n, offset);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
static int pfuze_init(void)
{
struct pmic *p;
@@ -281,6 +312,11 @@ static int pfuze_init(void)
pmic_reg_read(p, PFUZE100_DEVICEID, reg);
printf(PMIC: PFUZE100 ID=0x%02x\n, reg);
+ if (pfuze_setup_mode(p, (reg 0xf))) {
+ printf(setup pfuze mode error!\n);
+ return -1;
+ }
+
/* Set SW1AB stanby volage to 0.975V */
pmic_reg_read(p, PFUZE100_SW1ABSTBY, reg);
reg = ~0x3f;
diff --git a/board/freescale/mx6sabresd/mx6sabresd.c
b/board/freescale/mx6sabresd/mx6sabresd.c
index 72d6562..810fe13 100644
--- a/board/freescale/mx6sabresd/mx6sabresd.c
+++ b/board/freescale/mx6sabresd/mx6sabresd.c
@@ -456,6 +456,37 @@ int board_init(void)
return 0;
}
+/* set all switches APS in normal and PFM mode in standby */
+static int pfuze_setup_mode(struct pmic *p, int chip)
+{
+ unsigned char offset, i, switch_num, value;
+
+ if (!chip) {
+ /* pfuze100 */
+ switch_num = 6;
+ offset = 0x31;
+ } else {
+ /* pfuze200 */
+ switch_num = 4;
+ offset = 0x38;
+ }
+
+ value = 0xc;
+ if (pmic_reg_write(p, 0x23, value)) {
+ printf(Set SW1AB mode error!\n);
+ return -1;
+ }
+
+ for (i = 0; i switch_num - 1; i++) {
+ if (pmic_reg_write(p, offset + i * 7, value)) {
+ printf(Set switch%x mode error!\n, offset);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
static int pfuze_init(void)
{
struct pmic *p;
@@ -475,6 +506,11 @@ static int pfuze_init(void)
printf(PMIC: PFUZE%s ID=0x%02x\n,
((reg 0xf) == 0) ? 100 : 200, reg);
+ if (pfuze_setup_mode(p, (reg 0xf))) {
+ printf(setup pfuze mode error!\n);
+ return -1;
+ }
+
/* Increase VGEN3 from 2.5 to 2.8V */
pmic_reg_read(p, PFUZE100_VGEN3VOL, reg);
reg = ~0xf;
diff --git a/board/freescale/mx6slevk/mx6slevk.c
b/board/freescale/mx6slevk/mx6slevk.c
index 8b6a79c..fe5e37d 100644
--- a/board/freescale/mx6slevk/mx6slevk.c
+++ b/board/freescale/mx6slevk/mx6slevk.c
@@ -195,6 +195,37 @@ int board_init(void)
return 0;
}
+/* set all switches APS in normal and PFM mode in standby */
+static int pfuze_setup_mode(struct pmic *p, int chip)
+{
+ unsigned char offset, i, switch_num, value;
+
+ if (!chip) {
+ /* pfuze100 */
+ switch_num = 6;
+ offset = 0x31;
+ } else {
+ /* pfuze200 */
+ switch_num = 4;
+ offset = 0x38;
+ }
+
+ value = 0xc;
+ if (pmic_reg_write(p, 0x23, value)) {
+ printf(Set SW1AB mode error!\n);
+ return -1;
+ }
+
+ for (i = 0; i switch_num - 1; i++) {
+ if (pmic_reg_write(p, offset + i * 7, value)) {
+ printf(Set switch%x mode error!\n, offset);
+ return -1;
+ }
+ }
+
+ return 0;
