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-rw-r--r--recipes/u-boot/u-boot-git/beagleboard/revision-detection.patch241
1 files changed, 241 insertions, 0 deletions
diff --git a/recipes/u-boot/u-boot-git/beagleboard/revision-detection.patch b/recipes/u-boot/u-boot-git/beagleboard/revision-detection.patch
new file mode 100644
index 0000000000..c2a41bfcc7
--- /dev/null
+++ b/recipes/u-boot/u-boot-git/beagleboard/revision-detection.patch
@@ -0,0 +1,241 @@
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+Date: Fri, 8 Jan 2010 21:07:50 +0530
+Message-ID: <a8ca84ad1001080737r2312270ao80aa04ce60cc780@mail.gmail.com>
+Subject: [beagleboard] TI:OMAP: [PATCH 1/4] OMAP3 Beagle Update revision
+ detection
+From: Khasim Syed Mohammed <khasim@beagleboard.org>
+To: u-boot@lists.denx.de, beagleboard@googlegroups.com
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+--0016e64cc3d4779e0f047ca8f8bb
+Content-Type: text/plain; charset=ISO-8859-1
+
+From 15fbe5ff9ee2fd2f8da4c16805d6c7ccf7244bae Mon Sep 17 00:00:00 2001
+From: Syed Mohammed Khasim <khasim@ti.com>
+Date: Fri, 8 Jan 2010 20:13:47 +0530
+Subject: [PATCH] OMAP3 Beagle Update revision detection
+
+New BeagleBoard revision C4 uses a new ID. Update revision detection.
+
+Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
+Signed-off-by: Syed Mohammed Khasim <khasim@ti.com>
+---
+ board/ti/beagle/beagle.c | 65 ++++++++++++++++++++++++++++-----------------
+ board/ti/beagle/beagle.h | 8 ++++-
+ 2 files changed, 46 insertions(+), 27 deletions(-)
+
+diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c
+index 32d501e..0def5a6 100644
+--- a/board/ti/beagle/beagle.c
++++ b/board/ti/beagle/beagle.c
+@@ -38,7 +38,7 @@
+ #include <asm/mach-types.h>
+ #include "beagle.h"
+
+-static int beagle_revision_c;
++static int beagle_revision;
+
+ /*
+ * Routine: board_init
+@@ -60,41 +60,57 @@ int board_init(void)
+ /*
+ * Routine: beagle_get_revision
+ * Description: Return the revision of the BeagleBoard this code is running on.
+- * If it is a revision Ax/Bx board, this function returns 0,
+- * on a revision C board you will get a 1.
+ */
+ int beagle_get_revision(void)
+ {
+- return beagle_revision_c;
++ return beagle_revision;
+ }
+
+ /*
+ * Routine: beagle_identify
+- * Description: Detect if we are running on a Beagle revision Ax/Bx or
+- * Cx. This can be done by GPIO_171. If this is low, we are
+- * running on a revision C board.
++ * Description: Detect if we are running on a Beagle revision Ax/Bx,
++ * C1/2/3, C4 or D. This can be done by reading
++ * the level of GPIO173, GPIO172 and GPIO171. This should
++ * result in
++ * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
++ * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
++ * GPIO173, GPIO172, GPIO171: 1 0 1 => C4
++ * GPIO173, GPIO172, GPIO171: 0 0 0 => D
+ */
+ void beagle_identify(void)
+ {
+- beagle_revision_c = 0;
+- if (!omap_request_gpio(171)) {
+- unsigned int val;
+-
+- omap_set_gpio_direction(171, 1);
+- val = omap_get_gpio_datain(171);
+- omap_free_gpio(171);
+-
+- if (val)
+- beagle_revision_c = 0;
+- else
+- beagle_revision_c = 1;
+- }
++ omap_request_gpio(171);
++ omap_request_gpio(172);
++ omap_request_gpio(173);
++ omap_set_gpio_direction(171, 1);
++ omap_set_gpio_direction(172, 1);
++ omap_set_gpio_direction(173, 1);
++
++ beagle_revision = omap_get_gpio_datain(173) << 2 |
++ omap_get_gpio_datain(172) << 1 |
++ omap_get_gpio_datain(171);
++ omap_free_gpio(171);
++ omap_free_gpio(172);
++ omap_free_gpio(173);
+
+ printf("Board revision ");
+- if (beagle_revision_c)
+- printf("C\n");
+- else
++
++ switch (beagle_revision) {
++ case REVISION_AXBX:
+ printf("Ax/Bx\n");
++ break;
++ case REVISION_CX:
++ printf("C1/C2/C3\n");
++ break;
++ case REVISION_C4:
++ printf("C4\n");
++ break;
++ case REVISION_D:
++ printf("D\n");
++ break;
++ default:
++ printf("unknown 0x%02x\n", beagle_revision);
++ }
+ }
+
+ /*
+@@ -137,7 +153,6 @@ void set_muxconf_regs(void)
+ {
+ MUX_BEAGLE();
+
+- if (beagle_revision_c) {
++ if (beagle_revision != REVISION_AXBX)
+ MUX_BEAGLE_C();
+- }
+ }
+diff --git a/board/ti/beagle/beagle.h b/board/ti/beagle/beagle.h
+index 7fe6275..b1720c9 100644
+--- a/board/ti/beagle/beagle.h
++++ b/board/ti/beagle/beagle.h
+@@ -33,7 +33,11 @@ const omap3_sysinfo sysinfo = {
+ #endif
+ };
+
+-#define BOARD_REVISION_MASK (0x1 << 11)
++/* BeagleBoard revisions */
++#define REVISION_AXBX 0x7
++#define REVISION_CX 0x6
++#define REVISION_C4 0x5
++#define REVISION_D 0x0
+
+ /*
+ * IEN - Input Enable
+@@ -264,7 +268,7 @@ const omap3_sysinfo sysinfo = {
+ MUX_VAL(CP(HDQ_SIO), (IDIS | PTU | EN | M4)) /*GPIO_170*/\
+ MUX_VAL(CP(MCSPI1_CLK), (IEN | PTU | EN | M4)) /*GPIO_171*/\
+ MUX_VAL(CP(MCSPI1_SIMO), (IEN | PTU | EN | M4)) /*GPIO_172*/\
+- MUX_VAL(CP(MCSPI1_SOMI), (IEN | PTD | DIS | M0)) /*McSPI1_SOMI*/\
++ MUX_VAL(CP(MCSPI1_SOMI), (IEN | PTU | EN | M4)) /*GPIO_173*/\
+ MUX_VAL(CP(MCSPI1_CS0), (IEN | PTD | EN | M0)) /*McSPI1_CS0*/\
+ MUX_VAL(CP(MCSPI1_CS1), (IDIS | PTD | EN | M0)) /*McSPI1_CS1*/\
+ MUX_VAL(CP(MCSPI1_CS2), (IDIS | PTD | DIS | M4)) /*GPIO_176*/\
+--
+1.5.6.3
+
+--0016e64cc3d4779e0f047ca8f8bb
+Content-Type: text/plain; charset=ISO-8859-1
+
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