summaryrefslogtreecommitdiffstats
path: root/target/linux/s3c24xx/patches-2.6.24/1103-add-gta02-pcb-revision-detect.patch.patch
diff options
context:
space:
mode:
authormirko <mirko@3c298f89-4303-0410-b956-a3cf2f4a3e73>2008-12-12 11:58:53 +0000
committermirko <mirko@3c298f89-4303-0410-b956-a3cf2f4a3e73>2008-12-12 11:58:53 +0000
commitfc54b9bf158eea9cae647ce2c58f7d9989af173a (patch)
tree54644c1229434d7ee13c5872bda4129e34337fc0 /target/linux/s3c24xx/patches-2.6.24/1103-add-gta02-pcb-revision-detect.patch.patch
parentd9f49b62b28ebd245587854efa484974d90debbf (diff)
changed Makefile and profiles, added patches for kernel 2.6.24
(stable-branch of Openmoko) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13613 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.24/1103-add-gta02-pcb-revision-detect.patch.patch')
-rw-r--r--target/linux/s3c24xx/patches-2.6.24/1103-add-gta02-pcb-revision-detect.patch.patch118
1 files changed, 118 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.24/1103-add-gta02-pcb-revision-detect.patch.patch b/target/linux/s3c24xx/patches-2.6.24/1103-add-gta02-pcb-revision-detect.patch.patch
new file mode 100644
index 000000000..523edf0a2
--- /dev/null
+++ b/target/linux/s3c24xx/patches-2.6.24/1103-add-gta02-pcb-revision-detect.patch.patch
@@ -0,0 +1,118 @@
+From b8d251412bc4c420f33920c2d9492076fc7b9624 Mon Sep 17 00:00:00 2001
+From: Andy Green <andy@openmoko.com>
+Date: Sun, 13 Apr 2008 07:25:52 +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 */
+--
+1.5.6.5
+