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authorblogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-11-03 15:15:52 +0000
committerblogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-11-03 15:15:52 +0000
commitdfffaea839fd631ec0b3d4f58540316a04c4f2ad (patch)
treeb174b3a3d03c0c2b4a9b9c980efe38089069a2d4 /target/linux/lantiq/patches/0001-MIPS-lantiq-fix-early-printk.patch
parentde6080b7c2e5f3d2a9ed9677e3df0667bfc31842 (diff)
lantiq: bump to 3.1
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28721 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/lantiq/patches/0001-MIPS-lantiq-fix-early-printk.patch')
-rw-r--r--target/linux/lantiq/patches/0001-MIPS-lantiq-fix-early-printk.patch60
1 files changed, 60 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches/0001-MIPS-lantiq-fix-early-printk.patch b/target/linux/lantiq/patches/0001-MIPS-lantiq-fix-early-printk.patch
new file mode 100644
index 0000000000..57b330d2a7
--- /dev/null
+++ b/target/linux/lantiq/patches/0001-MIPS-lantiq-fix-early-printk.patch
@@ -0,0 +1,60 @@
+From 91f8d0c8fbb9ea70bf78a291e312157177be8ee3 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sat, 20 Aug 2011 18:55:13 +0200
+Subject: [PATCH 01/24] MIPS: lantiq: fix early printk
+
+The code was using a 32bit write operation in the early_printk code. This
+resulted in 3 zero bytes also being written to the serial port. Change the
+memory access to 8bit.
+
+Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
+Signed-off-by: John Crispin <blogic@openwrt.org>
+Cc: linux-mips@linux-mips.org
+---
+ .../mips/include/asm/mach-lantiq/xway/lantiq_soc.h | 4 ++++
+ arch/mips/lantiq/early_printk.c | 14 ++++++++------
+ 2 files changed, 12 insertions(+), 6 deletions(-)
+
+--- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
++++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
+@@ -34,6 +34,10 @@
+ #define LTQ_ASC1_BASE_ADDR 0x1E100C00
+ #define LTQ_ASC_SIZE 0x400
+
++/* during early_printk no ioremap is possible
++ lets use KSEG1 instead */
++#define LTQ_EARLY_ASC KSEG1ADDR(LTQ_ASC1_BASE_ADDR)
++
+ /* RCU - reset control unit */
+ #define LTQ_RCU_BASE_ADDR 0x1F203000
+ #define LTQ_RCU_SIZE 0x1000
+--- a/arch/mips/lantiq/early_printk.c
++++ b/arch/mips/lantiq/early_printk.c
+@@ -12,11 +12,13 @@
+ #include <lantiq.h>
+ #include <lantiq_soc.h>
+
+-/* no ioremap possible at this early stage, lets use KSEG1 instead */
+-#define LTQ_ASC_BASE KSEG1ADDR(LTQ_ASC1_BASE_ADDR)
+ #define ASC_BUF 1024
+-#define LTQ_ASC_FSTAT ((u32 *)(LTQ_ASC_BASE + 0x0048))
+-#define LTQ_ASC_TBUF ((u32 *)(LTQ_ASC_BASE + 0x0020))
++#define LTQ_ASC_FSTAT ((u32 *)(LTQ_EARLY_ASC + 0x0048))
++#ifdef __BIG_ENDIAN
++#define LTQ_ASC_TBUF ((u32 *)(LTQ_EARLY_ASC + 0x0020 + 3))
++#else
++#define LTQ_ASC_TBUF ((u32 *)(LTQ_EARLY_ASC + 0x0020))
++#endif
+ #define TXMASK 0x3F00
+ #define TXOFFSET 8
+
+@@ -27,7 +29,7 @@ void prom_putchar(char c)
+ local_irq_save(flags);
+ do { } while ((ltq_r32(LTQ_ASC_FSTAT) & TXMASK) >> TXOFFSET);
+ if (c == '\n')
+- ltq_w32('\r', LTQ_ASC_TBUF);
+- ltq_w32(c, LTQ_ASC_TBUF);
++ ltq_w8('\r', LTQ_ASC_TBUF);
++ ltq_w8(c, LTQ_ASC_TBUF);
+ local_irq_restore(flags);
+ }