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* [PATCH] mach-omap2/board-igep0020.c: Fix reboot problem
@ 2012-11-15 16:06 Matthias Brugger
  2012-11-15 16:42 ` Robert Nelson
  0 siblings, 1 reply; 13+ messages in thread
From: Matthias Brugger @ 2012-11-15 16:06 UTC (permalink / raw)
  To: Russell King, Tony Lindgren, linux-omap
  Cc: martinez.javier, eballetbo, Matthias Brugger

When rebooting an OMAP3530 at 125 MHz, the reboot hangs.
This patch adds a generic power save script, which resets the TWL4030 when a
warm reset occures. This way the OMAP3530 does not hang on reboot.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
---
 arch/arm/mach-omap2/board-igep0020.c |   36 ++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index 48d5e41..9ba1c4b 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -487,11 +487,47 @@ static struct twl4030_keypad_data igep2_keypad_pdata = {
 	.rep		= 1,
 };
 
+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 *twl4030_scripts[] __initdata = {
+	&wrst_script,
+};
+
+static struct twl4030_resconfig twl4030_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 igep_twl4030_power_data = {
+	.scripts	= twl4030_scripts,
+	.num		= ARRAY_SIZE(twl4030_scripts),
+	.resource_config = twl4030_rconfig,
+};
+
 static struct twl4030_platform_data igep_twldata = {
 	/* platform_data for children goes here */
 	.gpio		= &igep_twl4030_gpio_pdata,
 	.vmmc1          = &igep_vmmc1,
 	.vio		= &igep_vio,
+	.power		= &igep_twl4030_power_data,
 };
 
 static struct i2c_board_info __initdata igep2_i2c3_boardinfo[] = {
-- 
1.7.9.5


^ permalink raw reply related	[flat|nested] 13+ messages in thread
* [PATCH] omap2: twl-common: Add default power configuration
@ 2013-01-23 18:50 Matthias Brugger
  2013-01-24 15:54 ` Robert Nelson
  0 siblings, 1 reply; 13+ messages in thread
From: Matthias Brugger @ 2013-01-23 18:50 UTC (permalink / raw)
  To: tony, linux, martinez.javier, eballetbo, ezequiel.garcia,
	robertcnelson, linux-omap, linux-arm-kernel
  Cc: Matthias Brugger

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@gmail.com>
---
 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


^ permalink raw reply related	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2013-03-15  9:11 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-11-15 16:06 [PATCH] mach-omap2/board-igep0020.c: Fix reboot problem Matthias Brugger
2012-11-15 16:42 ` Robert Nelson
2012-12-14 17:19   ` Tony Lindgren
2012-12-18 21:32     ` Matthias Brugger
2013-01-23 18:21       ` [PATCH] omap2: twl-common: Add default power configuration Matthias Brugger
  -- strict thread matches above, loose matches on Subject: below --
2013-01-23 18:50 Matthias Brugger
2013-01-24 15:54 ` Robert Nelson
2013-02-01 22:42   ` Tony Lindgren
2013-02-15 15:59     ` Matthias Brugger
2013-02-19 10:37       ` Peter Ujfalusi
2013-03-08 18:58         ` Matthias Brugger
2013-03-12 16:57           ` Tony Lindgren
2013-03-15  9:11             ` Peter Ujfalusi

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