mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 01:11:14 +00:00
119 lines
3.3 KiB
Diff
Executable File
119 lines
3.3 KiB
Diff
Executable File
From fffb5d650929cf49a3e3f200bea1d5472de56794 Mon Sep 17 00:00:00 2001
|
|
From: Andy Green <andy@openmoko.com>
|
|
Date: Fri, 25 Jul 2008 23:06:02 +0100
|
|
Subject: [PATCH] add-gta02-pcb-revision-detect.patch
|
|
|
|
Add function
|
|
|
|
int gta02_get_pcb_revision(void)
|
|
|
|
which returns state of GTA02 PCB revision pins. It is also called
|
|
and logged during boot with KERN_INFO. The results look like:
|
|
|
|
b9 b8 b2 b1 b0
|
|
GPD4 GPD3 GPD0 GPC15 GPC13
|
|
|
|
GTA02 A5 and before: 0x000
|
|
GTA02 A6 : 0x001
|
|
|
|
Signed-off-by: Andy Green <andy@openmoko.com>
|
|
---
|
|
arch/arm/mach-s3c2440/mach-gta02.c | 55 +++++++++++++++++++++++++++++++++-
|
|
include/asm-arm/arch-s3c2410/gta02.h | 9 +++++
|
|
2 files changed, 63 insertions(+), 1 deletions(-)
|
|
|
|
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
|
|
index 99206ee..a2a63fe 100644
|
|
--- a/arch/arm/mach-s3c2440/mach-gta02.c
|
|
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
|
|
@@ -320,6 +320,59 @@ FIQ_HANDLER_ENTRY(256, 512)
|
|
FIQ_HANDLER_END()
|
|
|
|
|
|
+/**
|
|
+ * returns PCB revision information in b9,b8 and b2,b1,b0
|
|
+ * Pre-GTA02 A6 returns 0x000
|
|
+ * GTA02 A6 returns 0x101
|
|
+ * ...
|
|
+ */
|
|
+
|
|
+int gta02_get_pcb_revision(void)
|
|
+{
|
|
+ int n;
|
|
+ int u = 0;
|
|
+ static unsigned long pinlist[] = {
|
|
+ GTA02_PCB_ID1_0,
|
|
+ GTA02_PCB_ID1_1,
|
|
+ GTA02_PCB_ID1_2,
|
|
+ GTA02_PCB_ID2_0,
|
|
+ GTA02_PCB_ID2_1,
|
|
+ };
|
|
+ static int pin_offset[] = {
|
|
+ 0, 1, 2, 8, 9
|
|
+ };
|
|
+
|
|
+ for (n = 0 ; n < ARRAY_SIZE(pinlist); n++) {
|
|
+ /*
|
|
+ * set the PCB version GPIO to be pulled-down input
|
|
+ * force low briefly first
|
|
+ */
|
|
+ s3c2410_gpio_cfgpin(pinlist[n], S3C2410_GPIO_OUTPUT);
|
|
+ s3c2410_gpio_setpin(pinlist[n], 0);
|
|
+ /* misnomer: it is a pullDOWN in 2442 */
|
|
+ s3c2410_gpio_pullup(pinlist[n], 1);
|
|
+ s3c2410_gpio_cfgpin(pinlist[n], S3C2410_GPIO_INPUT);
|
|
+
|
|
+ udelay(10);
|
|
+
|
|
+ if (s3c2410_gpio_getpin(pinlist[n]))
|
|
+ u |= 1 << pin_offset[n];
|
|
+
|
|
+ /*
|
|
+ * when not being interrogated, all of the revision GPIO
|
|
+ * are set to output HIGH without pulldown so no current flows
|
|
+ * if they are NC or pulled up.
|
|
+ */
|
|
+ s3c2410_gpio_setpin(pinlist[n], 1);
|
|
+ s3c2410_gpio_cfgpin(pinlist[n], S3C2410_GPIO_OUTPUT);
|
|
+ /* misnomer: it is a pullDOWN in 2442 */
|
|
+ s3c2410_gpio_pullup(pinlist[n], 0);
|
|
+ }
|
|
+
|
|
+ return u;
|
|
+}
|
|
+
|
|
+
|
|
static struct map_desc gta02_iodesc[] __initdata = {
|
|
{
|
|
.virtual = 0xe0000000,
|
|
@@ -911,7 +964,7 @@ void gat02_lis302dl_suspend_io(struct lis302dl_info *lis, int resume)
|
|
s3c2410_gpio_pullup(pdata->pin_miso, 0);
|
|
}
|
|
|
|
-const struct lis302dl_platform_data lis302_pdata[] = {
|
|
+struct lis302dl_platform_data lis302_pdata[] = {
|
|
{
|
|
.name = "lis302-1 (top)",
|
|
.pin_chip_select= S3C2410_GPD12,
|
|
diff --git a/include/asm-arm/arch-s3c2410/gta02.h b/include/asm-arm/arch-s3c2410/gta02.h
|
|
index f686a7a..791ea4f 100644
|
|
--- a/include/asm-arm/arch-s3c2410/gta02.h
|
|
+++ b/include/asm-arm/arch-s3c2410/gta02.h
|
|
@@ -97,4 +97,13 @@
|
|
#define GTA02v3_IRQ_nUSB_FLT IRQ_EINT18 /* v3 + v4 only */
|
|
#define GTA02v3_IRQ_nGSM_OC IRQ_EINT19 /* v3 + v4 only */
|
|
|
|
+/* returns 00 000 on GTA02 A5 and earlier, A6 returns 01 001 */
|
|
+#define GTA02_PCB_ID1_0 S3C2410_GPC13
|
|
+#define GTA02_PCB_ID1_1 S3C2410_GPC15
|
|
+#define GTA02_PCB_ID1_2 S3C2410_GPD0
|
|
+#define GTA02_PCB_ID2_0 S3C2410_GPD3
|
|
+#define GTA02_PCB_ID2_1 S3C2410_GPD4
|
|
+
|
|
+int gta02_get_pcb_revision(void);
|
|
+
|
|
#endif /* _GTA02_H */
|
|
--
|
|
1.5.6.3
|
|
|