mpc83xx: add 2.6.33 support

[openwrt/svn-archive/archive.git] / target / linux / mpc83xx / patches-2.6.33 / 003-boot_rb600.patch

diff --git a/target/linux/mpc83xx/patches-2.6.33/003-boot_rb600.patch b/target/linux/mpc83xx/patches-2.6.33/003-boot_rb600.patch
new file mode 100644 (file)
index 0000000..be82131
--- /dev/null
+++ b/target/linux/mpc83xx/patches-2.6.33/003-boot_rb600.patch
@@ -0,0 +1,83 @@
+--- a/arch/powerpc/boot/rb600.c        
++++ b/arch/powerpc/boot/rb600.c        
+@@ -0,0 +1,80 @@
++/*
++ * The RouterBOARD platform -- for booting RB600(A) RouterBOARDs.
++ *
++ * Author: Michael Guntsche <mike@it-loops.com>
++ *
++ * Copyright (c) 2009 Michael Guntsche
++ *
++ * 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.
++ */
++
++#include "ops.h"
++#include "types.h"
++#include "io.h"
++#include "stdio.h"
++#include <libfdt.h>
++
++BSS_STACK(4*1024);
++
++u64 memsize64;
++const void *fw_dtb;
++
++static void rb600_fixups(void)
++{
++      const u32 *reg, *timebase, *clock;
++      int node, size;
++      void *chosen;
++      const char* bootargs;
++
++      dt_fixup_memory(0, memsize64);
++
++      /* Set the MAC addresses. */
++      node = fdt_path_offset(fw_dtb, "/soc8343@e0000000/ethernet@24000");
++      reg = fdt_getprop(fw_dtb, node, "mac-address", &size);
++      dt_fixup_mac_address_by_alias("ethernet1", (const u8 *)reg);
++
++      node = fdt_path_offset(fw_dtb, "/soc8343@e0000000/ethernet@25000");
++      reg = fdt_getprop(fw_dtb, node, "mac-address", &size);
++      dt_fixup_mac_address_by_alias("ethernet0", (const u8 *)reg);
++
++      /* Find the CPU timebase and clock frequencies. */
++      node = fdt_node_offset_by_prop_value(fw_dtb, -1, "device_type", "cpu", sizeof("cpu"));
++      timebase = fdt_getprop(fw_dtb, node, "timebase-frequency", &size);
++      clock = fdt_getprop(fw_dtb, node, "clock-frequency", &size);
++      dt_fixup_cpu_clocks(*clock, *timebase, 0);
++
++      /* Fixup chosen
++       * The bootloader reads the kernelparm segment and adds the content to
++       * bootargs. This is needed to specify root and other boot flags.
++       */
++      chosen = finddevice("/chosen");
++      node = fdt_path_offset(fw_dtb, "/chosen");
++      bootargs = fdt_getprop(fw_dtb, node, "bootargs", &size);
++      setprop_str(chosen, "bootargs", bootargs);
++}
++
++void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
++                 unsigned long r6, unsigned long r7)
++{
++      const u32 *reg;
++      int node, size;
++
++      fw_dtb = (const void *)r3;
++      
++      /* Find the memory range. */
++      node = fdt_node_offset_by_prop_value(fw_dtb, -1, "device_type", "memory", sizeof("memory"));
++      reg = fdt_getprop(fw_dtb, node, "reg", &size);
++      memsize64 = reg[1];
++
++      /* Now we have the memory size; initialize the heap. */
++      simple_alloc_init(_end, memsize64 - (unsigned long)_end, 32, 64);
++
++      /* Prepare the device tree and find the console. */
++      fdt_init(_dtb_start);
++      serial_console_init();
++
++      /* Remaining fixups... */
++      platform_ops.fixups = rb600_fixups;
++}