[xburst] Add 2.6.35 patches

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22463 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 89 insertions, 0 deletions

diff --git a/target/linux/xburst/patches-2.6.35/013-prom.patch b/target/linux/xburst/patches-2.6.35/013-prom.patch
new file mode 100644
index 0000000000..937a9356fd
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.35/013-prom.patch
@@ -0,0 +1,89 @@
+From c615e4c64389ef138c6a13afa744e09134db2c82 Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sat, 19 Jun 2010 04:08:17 +0000
+Subject: [PATCH] MIPS: JZ4740: Add prom support
+
+Add support for initializing arcs_cmdline on JZ4740 based machines and
+provides a prom_putchar implementation.
+
+Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
+Cc: linux-mips@linux-mips.org
+Cc: linux-kernel@vger.kernel.org
+Patchwork: https://patchwork.linux-mips.org/patch/1404/
+Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+---
+ arch/mips/jz4740/prom.c |   68 +++++++++++++++++++++++++++++++++++++++++++++++
+ 1 files changed, 68 insertions(+), 0 deletions(-)
+ create mode 100644 arch/mips/jz4740/prom.c
+
+--- /dev/null
++++ b/arch/mips/jz4740/prom.c
+@@ -0,0 +1,68 @@
++/*
++ *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
++ *  JZ4740 SoC prom code
++ *
++ *  This program is free software; you can redistribute it and/or modify it
++ *  under  the terms of the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the License, or (at your
++ *  option) any later version.
++ *
++ *  You should have received a copy of the GNU General Public License along
++ *  with this program; if not, write to the Free Software Foundation, Inc.,
++ *  675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/string.h>
++
++#include <linux/serial_reg.h>
++
++#include <asm/bootinfo.h>
++#include <asm/mach-jz4740/base.h>
++
++void jz4740_init_cmdline(int argc, char *argv[])
++{
++	unsigned int count = COMMAND_LINE_SIZE - 1;
++	int i;
++	char *dst = &(arcs_cmdline[0]);
++	char *src;
++
++	for (i = 1; i < argc && count; ++i) {
++		src = argv[i];
++		while (*src && count) {
++			*dst++ = *src++;
++			--count;
++		}
++		*dst++ = ' ';
++	}
++	if (i > 1)
++		--dst;
++
++	*dst = 0;
++}
++
++void __init prom_init(void)
++{
++	jz4740_init_cmdline((int)fw_arg0, (char **)fw_arg1);
++	mips_machtype = MACH_INGENIC_JZ4740;
++}
++
++void __init prom_free_prom_memory(void)
++{
++}
++
++#define UART_REG(_reg) ((void __iomem *)CKSEG1ADDR(JZ4740_UART0_BASE_ADDR + (_reg << 2)))
++
++void prom_putchar(char c)
++{
++	uint8_t lsr;
++
++	do {
++		lsr = readb(UART_REG(UART_LSR));
++	} while ((lsr & UART_LSR_TEMT) == 0);
++
++	writeb(c, UART_REG(UART_TX));
++}