[ramips] add patches for v3.8

Signed-off-by: John Crsipin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36163 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 133 insertions, 0 deletions

diff --git a/target/linux/ramips/patches-3.8/0006-MIPS-ralink-adds-OF-code.patch b/target/linux/ramips/patches-3.8/0006-MIPS-ralink-adds-OF-code.patch
new file mode 100644
index 0000000000..d8b632d708
--- /dev/null
+++ b/target/linux/ramips/patches-3.8/0006-MIPS-ralink-adds-OF-code.patch
@@ -0,0 +1,133 @@
+From 3a5bfe7bdbfd37c9206d7c6dfd7eb9664ccc5038 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sun, 20 Jan 2013 22:02:01 +0100
+Subject: [PATCH 06/14] MIPS: ralink: adds OF code
+
+Until there is a generic MIPS way of handing the DTB over from bootloader to
+kernel we rely on a built in devicetrees. The OF code also remaps those register
+ranges that we use global in our drivers.
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+Patchwork: http://patchwork.linux-mips.org/patch/4895/
+---
+ arch/mips/ralink/of.c |  107 +++++++++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 107 insertions(+)
+ create mode 100644 arch/mips/ralink/of.c
+
+diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
+new file mode 100644
+index 0000000..4165e70
+--- /dev/null
++++ b/arch/mips/ralink/of.c
+@@ -0,0 +1,107 @@
++/*
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published
++ * by the Free Software Foundation.
++ *
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
++ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
++ */
++
++#include <linux/io.h>
++#include <linux/clk.h>
++#include <linux/init.h>
++#include <linux/of_fdt.h>
++#include <linux/kernel.h>
++#include <linux/bootmem.h>
++#include <linux/of_platform.h>
++#include <linux/of_address.h>
++
++#include <asm/reboot.h>
++#include <asm/bootinfo.h>
++#include <asm/addrspace.h>
++
++#include "common.h"
++
++__iomem void *rt_sysc_membase;
++__iomem void *rt_memc_membase;
++
++extern struct boot_param_header __dtb_start;
++
++__iomem void *plat_of_remap_node(const char *node)
++{
++	struct resource res;
++	struct device_node *np;
++
++	np = of_find_compatible_node(NULL, NULL, node);
++	if (!np)
++		panic("Failed to find %s node", node);
++
++	if (of_address_to_resource(np, 0, &res))
++		panic("Failed to get resource for %s", node);
++
++	if ((request_mem_region(res.start,
++				resource_size(&res),
++				res.name) < 0))
++		panic("Failed to request resources for %s", node);
++
++	return ioremap_nocache(res.start, resource_size(&res));
++}
++
++void __init device_tree_init(void)
++{
++	unsigned long base, size;
++	void *fdt_copy;
++
++	if (!initial_boot_params)
++		return;
++
++	base = virt_to_phys((void *)initial_boot_params);
++	size = be32_to_cpu(initial_boot_params->totalsize);
++
++	/* Before we do anything, lets reserve the dt blob */
++	reserve_bootmem(base, size, BOOTMEM_DEFAULT);
++
++	/* The strings in the flattened tree are referenced directly by the
++	 * device tree, so copy the flattened device tree from init memory
++	 * to regular memory.
++	 */
++	fdt_copy = alloc_bootmem(size);
++	memcpy(fdt_copy, initial_boot_params, size);
++	initial_boot_params = fdt_copy;
++
++	unflatten_device_tree();
++
++	/* free the space reserved for the dt blob */
++	free_bootmem(base, size);
++}
++
++void __init plat_mem_setup(void)
++{
++	set_io_port_base(KSEG1);
++
++	/*
++	 * Load the builtin devicetree. This causes the chosen node to be
++	 * parsed resulting in our memory appearing
++	 */
++	__dt_setup_arch(&__dtb_start);
++}
++
++static int __init plat_of_setup(void)
++{
++	static struct of_device_id of_ids[3];
++	int len = sizeof(of_ids[0].compatible);
++
++	if (!of_have_populated_dt())
++		panic("device tree not present");
++
++	strncpy(of_ids[0].compatible, soc_info.compatible, len);
++	strncpy(of_ids[1].compatible, "palmbus", len);
++
++	if (of_platform_populate(NULL, of_ids, NULL, NULL))
++		panic("failed to populate DT\n");
++
++	return 0;
++}
++
++arch_initcall(plat_of_setup);
+-- 
+1.7.10.4
+