* [PATCH] ARM: OMAP: Fix MMC gpio_wp for BeagleBoard C2 and above
@ 2009-09-18 9:32 Jarkko Nikula
2009-09-18 10:22 ` Jarkko Nikula
0 siblings, 1 reply; 4+ messages in thread
From: Jarkko Nikula @ 2009-09-18 9:32 UTC (permalink / raw)
To: linux-omap; +Cc: Jarkko Nikula
Earlier BeagleBoards were using pad AH8 muxed to GPIO29 for MMC write-protect.
However, this signal has been changed to pad AG9 in board revision C2.
Fix this by adding mux configuration for pad AG9, runtime check for board
revisions and set the gpio number and pad muxing accordingly.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
---
arch/arm/mach-omap2/board-omap3beagle.c | 7 ++++++-
arch/arm/mach-omap2/mux.c | 2 ++
arch/arm/plat-omap/include/mach/mux.h | 1 +
3 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index a661fe3..ea7db8a 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -139,8 +139,13 @@ static struct gpio_led gpio_leds[];
static int beagle_twl_gpio_setup(struct device *dev,
unsigned gpio, unsigned ngpio)
{
+ if (system_rev >= 0x20 && system_rev <= 0x34301000) {
+ omap_cfg_reg(AG9_34XX_GPIO23);
+ mmc[0].gpio_wp = 23;
+ } else {
+ omap_cfg_reg(AH8_34XX_GPIO29);
+ }
/* gpio + 0 is "mmc0_cd" (input/IRQ) */
- omap_cfg_reg(AH8_34XX_GPIO29);
mmc[0].gpio_cd = gpio + 0;
twl4030_mmc_init(mmc);
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index 2daa595..8045b61 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -460,6 +460,8 @@ MUX_CFG_34XX("AF26_34XX_GPIO0", 0x1e0,
OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
MUX_CFG_34XX("AF22_34XX_GPIO9", 0xa18,
OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
+MUX_CFG_34XX("AH8_34XX_GPIO23", 0x5ee,
+ OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
MUX_CFG_34XX("AH8_34XX_GPIO29", 0x5fa,
OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
MUX_CFG_34XX("U8_34XX_GPIO54_OUT", 0x0b4,
diff --git a/arch/arm/plat-omap/include/mach/mux.h b/arch/arm/plat-omap/include/mach/mux.h
index 98dfab6..9fd6171 100644
--- a/arch/arm/plat-omap/include/mach/mux.h
+++ b/arch/arm/plat-omap/include/mach/mux.h
@@ -840,6 +840,7 @@ enum omap34xx_index {
*/
AF26_34XX_GPIO0,
AF22_34XX_GPIO9,
+ AG9_34XX_GPIO23,
AH8_34XX_GPIO29,
U8_34XX_GPIO54_OUT,
U8_34XX_GPIO54_DOWN,
--
1.6.3.3
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] ARM: OMAP: Fix MMC gpio_wp for BeagleBoard C2 and above
2009-09-18 9:32 [PATCH] ARM: OMAP: Fix MMC gpio_wp for BeagleBoard C2 and above Jarkko Nikula
@ 2009-09-18 10:22 ` Jarkko Nikula
2009-09-18 10:27 ` [PATCHv2] " jhnikula
0 siblings, 1 reply; 4+ messages in thread
From: Jarkko Nikula @ 2009-09-18 10:22 UTC (permalink / raw)
To: linux-omap
On Fri, 18 Sep 2009 12:32:52 +0300
Jarkko Nikula <jhnikula@gmail.com> wrote:
> Earlier BeagleBoards were using pad AH8 muxed to GPIO29 for MMC write-protect.
> However, this signal has been changed to pad AG9 in board revision C2.
>
> Fix this by adding mux configuration for pad AG9, runtime check for board
> revisions and set the gpio number and pad muxing accordingly.
>
...
> +MUX_CFG_34XX("AH8_34XX_GPIO23", 0x5ee,
> + OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
> MUX_CFG_34XX("AH8_34XX_GPIO29", 0x5fa,
> OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
Stupid copy-paste error here. Will print the wrong pad. I'll resend
in a minute.
--
Jarkko
^ permalink raw reply [flat|nested] 4+ messages in thread* [PATCHv2] ARM: OMAP: Fix MMC gpio_wp for BeagleBoard C2 and above
2009-09-18 10:22 ` Jarkko Nikula
@ 2009-09-18 10:27 ` jhnikula
2009-09-22 21:10 ` [APPLIED] " Tony Lindgren
0 siblings, 1 reply; 4+ messages in thread
From: jhnikula @ 2009-09-18 10:27 UTC (permalink / raw)
To: linux-omap; +Cc: Jarkko Nikula
From: Jarkko Nikula <jhnikula@gmail.com>
Earlier BeagleBoards were using pad AH8 muxed to GPIO29 for MMC write-protect.
However, this signal has been changed to pad AG9 in board revision C2.
Fix this by adding mux configuration for pad AG9, runtime check for board
revisions and set the gpio number and pad muxing accordingly.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
---
arch/arm/mach-omap2/board-omap3beagle.c | 7 ++++++-
arch/arm/mach-omap2/mux.c | 2 ++
arch/arm/plat-omap/include/mach/mux.h | 1 +
3 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index a661fe3..ea7db8a 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -139,8 +139,13 @@ static struct gpio_led gpio_leds[];
static int beagle_twl_gpio_setup(struct device *dev,
unsigned gpio, unsigned ngpio)
{
+ if (system_rev >= 0x20 && system_rev <= 0x34301000) {
+ omap_cfg_reg(AG9_34XX_GPIO23);
+ mmc[0].gpio_wp = 23;
+ } else {
+ omap_cfg_reg(AH8_34XX_GPIO29);
+ }
/* gpio + 0 is "mmc0_cd" (input/IRQ) */
- omap_cfg_reg(AH8_34XX_GPIO29);
mmc[0].gpio_cd = gpio + 0;
twl4030_mmc_init(mmc);
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index 2daa595..8d773e8 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -460,6 +460,8 @@ MUX_CFG_34XX("AF26_34XX_GPIO0", 0x1e0,
OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
MUX_CFG_34XX("AF22_34XX_GPIO9", 0xa18,
OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
+MUX_CFG_34XX("AG9_34XX_GPIO23", 0x5ee,
+ OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
MUX_CFG_34XX("AH8_34XX_GPIO29", 0x5fa,
OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT)
MUX_CFG_34XX("U8_34XX_GPIO54_OUT", 0x0b4,
diff --git a/arch/arm/plat-omap/include/mach/mux.h b/arch/arm/plat-omap/include/mach/mux.h
index 98dfab6..9fd6171 100644
--- a/arch/arm/plat-omap/include/mach/mux.h
+++ b/arch/arm/plat-omap/include/mach/mux.h
@@ -840,6 +840,7 @@ enum omap34xx_index {
*/
AF26_34XX_GPIO0,
AF22_34XX_GPIO9,
+ AG9_34XX_GPIO23,
AH8_34XX_GPIO29,
U8_34XX_GPIO54_OUT,
U8_34XX_GPIO54_DOWN,
--
1.6.3.3
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2009-09-22 21:10 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2009-09-18 9:32 [PATCH] ARM: OMAP: Fix MMC gpio_wp for BeagleBoard C2 and above Jarkko Nikula
2009-09-18 10:22 ` Jarkko Nikula
2009-09-18 10:27 ` [PATCHv2] " jhnikula
2009-09-22 21:10 ` [APPLIED] " Tony Lindgren
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