diff options
Diffstat (limited to 'arch/mips/ralink/of.c')
| -rw-r--r-- | arch/mips/ralink/of.c | 46 |
1 files changed, 17 insertions, 29 deletions
diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c index 4165e70775b..251395210e2 100644 --- a/arch/mips/ralink/of.c +++ b/arch/mips/ralink/of.c @@ -11,6 +11,7 @@ #include <linux/io.h> #include <linux/clk.h> #include <linux/init.h> +#include <linux/sizes.h> #include <linux/of_fdt.h> #include <linux/kernel.h> #include <linux/bootmem.h> @@ -20,14 +21,13 @@ #include <asm/reboot.h> #include <asm/bootinfo.h> #include <asm/addrspace.h> +#include <asm/prom.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; @@ -50,30 +50,7 @@ __iomem void *plat_of_remap_node(const char *node) 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); + unflatten_and_copy_device_tree(); } void __init plat_mem_setup(void) @@ -84,7 +61,15 @@ void __init plat_mem_setup(void) * Load the builtin devicetree. This causes the chosen node to be * parsed resulting in our memory appearing */ - __dt_setup_arch(&__dtb_start); + __dt_setup_arch(__dtb_start); + + if (soc_info.mem_size) + add_memory_region(soc_info.mem_base, soc_info.mem_size * SZ_1M, + BOOT_MEM_RAM); + else + detect_memory_region(soc_info.mem_base, + soc_info.mem_size_min * SZ_1M, + soc_info.mem_size_max * SZ_1M); } static int __init plat_of_setup(void) @@ -95,11 +80,14 @@ static int __init plat_of_setup(void) if (!of_have_populated_dt()) panic("device tree not present"); - strncpy(of_ids[0].compatible, soc_info.compatible, len); + strlcpy(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"); + panic("failed to populate DT"); + + /* make sure ithat the reset controller is setup early */ + ralink_rst_init(); return 0; } |