From: Matthias Brugger <matthias.bgg@googlemail.com>
To: Russell King <linux@arm.linux.org.uk>,
Tony Lindgren <tony@atomide.com>,
linux-omap@vger.kernel.org
Cc: martinez.javier@gmail.com, eballetbo@iseebcn.com,
Matthias Brugger <matthias.bgg@gmail.com>
Subject: [PATCH] mach-omap2/board-igep0020.c: Fix reboot problem
Date: Thu, 15 Nov 2012 17:06:53 +0100 [thread overview]
Message-ID: <1352995613-17994-1-git-send-email-matthias.bgg@gmail.com> (raw)
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
next reply other threads:[~2012-11-15 16:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-15 16:06 Matthias Brugger [this message]
2012-11-15 16:42 ` [PATCH] mach-omap2/board-igep0020.c: Fix reboot problem 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1352995613-17994-1-git-send-email-matthias.bgg@gmail.com \
--to=matthias.bgg@googlemail.com \
--cc=eballetbo@iseebcn.com \
--cc=linux-omap@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=martinez.javier@gmail.com \
--cc=matthias.bgg@gmail.com \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).