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Diffstat (limited to 'packages/linux/linux-ezx-2.6.23/patches/ezx-enable-stuart.patch')
-rw-r--r--packages/linux/linux-ezx-2.6.23/patches/ezx-enable-stuart.patch99
1 files changed, 99 insertions, 0 deletions
diff --git a/packages/linux/linux-ezx-2.6.23/patches/ezx-enable-stuart.patch b/packages/linux/linux-ezx-2.6.23/patches/ezx-enable-stuart.patch
new file mode 100644
index 0000000000..6f1a2c1ba4
--- /dev/null
+++ b/packages/linux/linux-ezx-2.6.23/patches/ezx-enable-stuart.patch
@@ -0,0 +1,99 @@
+Index: linux-2.6.21/arch/arm/boot/compressed/head.S
+===================================================================
+--- linux-2.6.21.orig/arch/arm/boot/compressed/head.S 2007-05-19 11:22:56.000000000 -0300
++++ linux-2.6.21/arch/arm/boot/compressed/head.S 2007-05-19 11:50:29.000000000 -0300
+@@ -10,6 +10,7 @@
+ */
+ #include <linux/linkage.h>
+
++#define DEBUG
+ /*
+ * Debugging stuff
+ *
+@@ -117,6 +118,8 @@
+ mov r0, r0
+ .endr
+
++ inituart r10, r11
++
+ mov r1, #0x300 @ mach_id 0x363 is official EZX
+ orr r1, r1, #0x63 @ bootloader JUMP doesn't set r1
+
+Index: linux-2.6.21/include/asm-arm/arch-pxa/uncompress.h
+===================================================================
+--- linux-2.6.21.orig/include/asm-arm/arch-pxa/uncompress.h 2007-05-19 11:22:56.000000000 -0300
++++ linux-2.6.21/include/asm-arm/arch-pxa/uncompress.h 2007-05-19 11:30:38.000000000 -0300
+@@ -19,9 +19,9 @@
+
+ static inline void putc(char c)
+ {
+-/* while (!(UART[5] & 0x40))
++ while (!(UART[5] & 0x40))
+ barrier();
+- UART[0] = c;*/
++ UART[0] = c;
+ }
+
+ /*
+Index: linux-2.6.21/include/asm-arm/arch-pxa/debug-macro.S
+===================================================================
+--- linux-2.6.21.orig/include/asm-arm/arch-pxa/debug-macro.S 2007-05-19 11:30:54.000000000 -0300
++++ linux-2.6.21/include/asm-arm/arch-pxa/debug-macro.S 2007-05-19 11:49:35.000000000 -0300
+@@ -14,11 +14,52 @@
+ #include "hardware.h"
+
+ .macro addruart,rx
+- mrc p15, 0, \rx, c1, c0
+- tst \rx, #1 @ MMU enabled?
+- moveq \rx, #0x40000000 @ physical
+- movne \rx, #io_p2v(0x40000000) @ virtual
+- orr \rx, \rx, #0x00100000
++@ mrc p15, 0, \rx, c1, c0
++@ tst \rx, #1 @ MMU enabled?
++ mov \rx, #0x40000000
++@ moveq \rx, #0x40000000 @ physical
++@ movne \rx, #io_p2v(0x40000000) @ virtual
++ orr \rx, \rx, #0x00700000
++ .endm
++
++ .macro inituart,rd,rx
++ ldr \rd, =0x41300004 @ CKEN
++ ldr \rx, [\rd]
++ orr \rx, \rx, #0x20
++ str \rx, [\rd]
++
++ ldr \rd, =0x40E0005C
++ ldr \rx, [\rd]
++ bic \rx, \rx, #0xF0000000 @ clear GPIO46/47 config
++ orr \rx, \rx, #0x60000000 @ set GPIO46: AF2, GPIO47: AF1
++ str \rx, [\rd]
++ ldr \rd, =0x40E00010
++ ldr \rx, [\rd]
++ bic \rx, \rx, #0x0000c000 @ clear GPIO46/47 direction
++ orr \rx, \rx, #0x00008000 @ set GPIO 47 out, 46 in
++ str \rx, [\rd]
++
++ addruart \rd
++ mov \rx, #0x83 @ DLAB = 1
++ strb \rx, [\rd, #0x0c]
++
++ mov \rx, #0x08 @ Divisor 8 => 115200 bps
++ strb \rx, [\rd, #0x00]
++
++ mov \rx, #0x00
++ strb \rx, [\rd, #0x04] @ Divisor high = 0
++
++ mov \rx, #0x03
++ strb \rx, [\rd, #0x0c] @ DLAB = 0, n81
++
++ mov \rx, #0x00
++ strb \rx, [\rd, #0x10] @ MCR = 0
++
++ mov \rx, #0x00
++ strb \rx, [\rd, #0x28] @ disable autobaud
++
++ mov \rx, #0x40
++ strb \rx, [\rd, #0x04] @ IER UUE (UART Enable)
+ .endm
+
+ #define UART_SHIFT 2