mirror of
https://github.com/torvalds/linux
synced 2024-07-21 10:41:44 +00:00
657c45b303
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it was merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
121 lines
2.9 KiB
C
121 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
*
|
|
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
|
|
* Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
|
|
* Copyright (C) 2013 John Crispin <john@phrozen.org>
|
|
*/
|
|
|
|
#include <linux/io.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/export.h>
|
|
#include <linux/init.h>
|
|
#include <linux/sizes.h>
|
|
#include <linux/of_fdt.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/memblock.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_address.h>
|
|
|
|
#include <asm/reboot.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/addrspace.h>
|
|
#include <asm/prom.h>
|
|
#include <asm/mach-ralink/ralink_regs.h>
|
|
|
|
#include "common.h"
|
|
|
|
__iomem void *rt_sysc_membase;
|
|
__iomem void *rt_memc_membase;
|
|
EXPORT_SYMBOL_GPL(rt_sysc_membase);
|
|
|
|
static const struct of_device_id mtmips_memc_match[] = {
|
|
{ .compatible = "mediatek,mt7621-memc" },
|
|
{ .compatible = "ralink,mt7620a-memc" },
|
|
{ .compatible = "ralink,rt2880-memc" },
|
|
{ .compatible = "ralink,rt3050-memc" },
|
|
{ .compatible = "ralink,rt3883-memc" },
|
|
{}
|
|
};
|
|
|
|
static const struct of_device_id mtmips_sysc_match[] = {
|
|
{ .compatible = "mediatek,mt7621-sysc" },
|
|
{ .compatible = "ralink,mt7620-sysc" },
|
|
{ .compatible = "ralink,mt7628-sysc" },
|
|
{ .compatible = "ralink,mt7688-sysc" },
|
|
{ .compatible = "ralink,rt2880-sysc" },
|
|
{ .compatible = "ralink,rt3050-sysc" },
|
|
{ .compatible = "ralink,rt3052-sysc" },
|
|
{ .compatible = "ralink,rt3352-sysc" },
|
|
{ .compatible = "ralink,rt3883-sysc" },
|
|
{ .compatible = "ralink,rt5350-sysc" },
|
|
{}
|
|
};
|
|
|
|
static __iomem void *
|
|
mtmips_of_remap_node(const struct of_device_id *match, const char *type)
|
|
{
|
|
struct resource res;
|
|
struct device_node *np;
|
|
|
|
np = of_find_matching_node(NULL, match);
|
|
if (!np)
|
|
panic("Failed to find %s controller node", type);
|
|
|
|
if (of_address_to_resource(np, 0, &res))
|
|
panic("Failed to get resource for %s node", np->name);
|
|
|
|
if (!request_mem_region(res.start,
|
|
resource_size(&res),
|
|
res.name))
|
|
panic("Failed to request resources for %s node", np->name);
|
|
|
|
of_node_put(np);
|
|
|
|
return ioremap(res.start, resource_size(&res));
|
|
}
|
|
|
|
void __init ralink_of_remap(void)
|
|
{
|
|
rt_sysc_membase = mtmips_of_remap_node(mtmips_sysc_match, "system");
|
|
rt_memc_membase = mtmips_of_remap_node(mtmips_memc_match, "memory");
|
|
|
|
if (!rt_sysc_membase || !rt_memc_membase)
|
|
panic("Failed to remap core resources");
|
|
}
|
|
|
|
void __init plat_mem_setup(void)
|
|
{
|
|
void *dtb;
|
|
|
|
set_io_port_base(KSEG1);
|
|
|
|
/*
|
|
* Load the builtin devicetree. This causes the chosen node to be
|
|
* parsed resulting in our memory appearing.
|
|
*/
|
|
dtb = get_fdt();
|
|
__dt_setup_arch(dtb);
|
|
|
|
if (early_init_dt_scan_memory())
|
|
return;
|
|
|
|
if (soc_info.mem_detect)
|
|
soc_info.mem_detect();
|
|
else if (soc_info.mem_size)
|
|
memblock_add(soc_info.mem_base, soc_info.mem_size * SZ_1M);
|
|
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)
|
|
{
|
|
__dt_register_buses(soc_info.compatible, "palmbus");
|
|
|
|
return 0;
|
|
}
|
|
|
|
arch_initcall(plat_of_setup);
|