This patch adds a generic power script configuration.
When rebooting an OMAP3530 at 125 MHz, the reboot hangs.
With the generic power script, TWL4030 will be reset
when a warm reset occures. This way the OMAP3530 does not
hang on reboot.
Signed-off-by: Matthias Brugger <matthias.bgg@xxxxxxxxx>
---
arch/arm/mach-omap2/twl-common.c | 38 ++++++++++++++++++++++++++++++++++++++
arch/arm/mach-omap2/twl-common.h | 1 +
2 files changed, 39 insertions(+)
diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index e49b40b..f096beb 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -120,6 +120,41 @@ static struct twl4030_audio_data omap3_audio_pdata = {
.codec = &omap3_codec,
};
+static struct twl4030_ins wrst_seq[] __initdata = {
+ {MSG_SINGULAR(DEV_GRP_NULL, 0x1b, RES_STATE_OFF), 2},
+ {MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_WRST), 15},
+ {MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_WRST), 15},
+ {MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_WRST), 0x60},
+ {MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 2},
+ {MSG_SINGULAR(DEV_GRP_NULL, 0x1b, RES_STATE_ACTIVE), 2},
+};
+
+static struct twl4030_script wrst_script __initdata = {
+ .script = wrst_seq,
+ .size = ARRAY_SIZE(wrst_seq),
+ .flags = TWL4030_WRST_SCRIPT,
+};
+
+static struct twl4030_script *omap3_power_scripts[] __initdata = {
+ &wrst_script,
+};
+
+static struct twl4030_resconfig omap3_rconfig[] = {
+ { .resource = RES_HFCLKOUT, .devgroup = DEV_GRP_P3, .type = -1,
+ .type2 = -1 },
+ { .resource = RES_VDD1, .devgroup = DEV_GRP_P1, .type = -1,
+ .type2 = -1 },
+ { .resource = RES_VDD2, .devgroup = DEV_GRP_P1, .type = -1,
+ .type2 = -1 },
+ { 0, 0},
+};
+
+static struct twl4030_power_data omap3_power_pdata = {
+ .scripts = omap3_power_scripts,
+ .num = ARRAY_SIZE(omap3_power_scripts),
+ .resource_config = omap3_rconfig,
+};
+
static struct regulator_consumer_supply omap3_vdda_dac_supplies[] = {
REGULATOR_SUPPLY("vdda_dac", "omapdss_venc"),
};
@@ -224,6 +259,9 @@ void __init omap3_pmic_get_config(struct twl4030_platform_data *pmic_data,
if (pdata_flags & TWL_COMMON_PDATA_AUDIO && !pmic_data->audio)
pmic_data->audio = &omap3_audio_pdata;
+ if (pdata_flags & TWL_COMMON_PDATA_POWER && !pmic_data->power)
+ pmic_data->power = &omap3_power_pdata;
+
/* Common regulator configurations */
if (regulators_flags & TWL_COMMON_REGULATOR_VDAC && !pmic_data->vdac)
pmic_data->vdac = &omap3_vdac_idata;
diff --git a/arch/arm/mach-omap2/twl-common.h b/arch/arm/mach-omap2/twl-common.h
index dcfbad5..dbeb905 100644
--- a/arch/arm/mach-omap2/twl-common.h
+++ b/arch/arm/mach-omap2/twl-common.h
@@ -7,6 +7,7 @@
#define TWL_COMMON_PDATA_BCI (1 << 1)
#define TWL_COMMON_PDATA_MADC (1 << 2)
#define TWL_COMMON_PDATA_AUDIO (1 << 3)
+#define TWL_COMMON_PDATA_POWER (1 << 4)
/* Common LDO regulators for TWL4030/TWL6030 */
#define TWL_COMMON_REGULATOR_VDAC (1 << 0)
--
1.7.11.7
--
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