diff options
Diffstat (limited to 'target/linux/ramips/patches-3.8/0006-MIPS-ralink-adds-OF-code.patch')
| -rw-r--r-- | target/linux/ramips/patches-3.8/0006-MIPS-ralink-adds-OF-code.patch | 133 |
1 files changed, 0 insertions, 133 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 deleted file mode 100644 index 7747c819ca..0000000000 --- a/target/linux/ramips/patches-3.8/0006-MIPS-ralink-adds-OF-code.patch +++ /dev/null @@ -1,133 +0,0 @@ -From 4b2f9abbbaf3463a0fc1a65afeb0d12f890ada35 Mon Sep 17 00:00:00 2001 -From: John Crispin <blogic@openwrt.org> -Date: Sun, 20 Jan 2013 22:02:01 +0100 -Subject: [PATCH 06/79] 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 - |