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authorFelix Fietkau <nbd@openwrt.org>2012-05-06 17:08:30 +0000
committerFelix Fietkau <nbd@openwrt.org>2012-05-06 17:08:30 +0000
commit9b20187ad5a2055bcabb3ee905afade92aaa3be2 (patch)
treeeb5307a5e2a7d77d4a5f2ff535c85b957990f047 /target/linux/atheros/patches-3.3/101-early-printk-support.patch
parent9a34f9d01e04ae80e1eba30deaf7fc8382d01706 (diff)
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atheros: update to 3.3.4 (based on work by acoul), fix mvswitch driver for newer kernels
SVN-Revision: 31625
Diffstat (limited to 'target/linux/atheros/patches-3.3/101-early-printk-support.patch')
-rw-r--r--target/linux/atheros/patches-3.3/101-early-printk-support.patch68
1 files changed, 68 insertions, 0 deletions
diff --git a/target/linux/atheros/patches-3.3/101-early-printk-support.patch b/target/linux/atheros/patches-3.3/101-early-printk-support.patch
new file mode 100644
index 0000000000..90e9f2ed42
--- /dev/null
+++ b/target/linux/atheros/patches-3.3/101-early-printk-support.patch
@@ -0,0 +1,68 @@
+--- /dev/null
++++ b/arch/mips/ar231x/early_printk.c
+@@ -0,0 +1,44 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
++ */
++
++#include <linux/mm.h>
++#include <linux/io.h>
++#include <linux/serial_reg.h>
++#include <asm/addrspace.h>
++
++#include <asm/mach-ar231x/ar2315_regs.h>
++#include <asm/mach-ar231x/ar5312_regs.h>
++#include "devices.h"
++
++static inline void prom_uart_wr(void __iomem *base, unsigned reg,
++ unsigned char ch)
++{
++ __raw_writeb(ch, base + 4 * reg);
++}
++
++static inline unsigned char prom_uart_rr(void __iomem *base, unsigned reg)
++{
++ return __raw_readb(base + 4 * reg);
++}
++
++void prom_putchar(unsigned char ch)
++{
++ static void __iomem *base;
++
++ if (unlikely(base == NULL)) {
++ if (is_2315())
++ base = (void __iomem *)(KSEG1ADDR(AR2315_UART0));
++ else
++ base = (void __iomem *)(KSEG1ADDR(AR531X_UART0));
++ }
++
++ while ((prom_uart_rr(base, UART_LSR) & UART_LSR_THRE) == 0);
++ prom_uart_wr(base, UART_TX, ch);
++ while ((prom_uart_rr(base, UART_LSR) & UART_LSR_THRE) == 0);
++}
++
+--- a/arch/mips/ar231x/Makefile
++++ b/arch/mips/ar231x/Makefile
+@@ -9,5 +9,8 @@
+ #
+
+ obj-y += board.o prom.o devices.o
++
++obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
++
+ obj-$(CONFIG_ATHEROS_AR5312) += ar5312.o
+ obj-$(CONFIG_ATHEROS_AR2315) += ar2315.o
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -130,6 +130,7 @@ config ATHEROS_AR231X
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select ARCH_REQUIRE_GPIOLIB
++ select SYS_HAS_EARLY_PRINTK
+ help
+ Support for AR231x and AR531x based boards
+