blob: f9eda5d8f82cd54681efbdf65c4f55123a3dfeed [file] [log] [blame]
* 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 <>
* Copyright (C) 2008-2009 Gabor Juhos <>
* Copyright (C) 2013 John Crispin <>
#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>
#include <linux/of_platform.h>
#include <linux/of_address.h>
#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;
__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), < 0))
panic("Failed to request resources for %s", node);
return ioremap_nocache(res.start, resource_size(&res));
void __init device_tree_init(void)
static int memory_dtb;
static int __init early_init_dt_find_memory(unsigned long node,
const char *uname, int depth, void *data)
if (depth == 1 && !strcmp(uname, "memory@0"))
memory_dtb = 1;
return 0;
void __init plat_mem_setup(void)
* Load the builtin devicetree. This causes the chosen node to be
* parsed resulting in our memory appearing
of_scan_flat_dt(early_init_dt_find_memory, NULL);
if (memory_dtb)
of_scan_flat_dt(early_init_dt_scan_memory, NULL);
else if (soc_info.mem_size)
add_memory_region(soc_info.mem_base, soc_info.mem_size * SZ_1M,
soc_info.mem_size_min * SZ_1M,
soc_info.mem_size_max * SZ_1M);
static int __init plat_of_setup(void)
__dt_register_buses(soc_info.compatible, "palmbus");
/* make sure that the reset controller is setup early */
return 0;