8cad65950b
[ Upstream commit fef532ea0cd871afab7d9a7b6e9da99ac2c24371 ]
rt2880_wdt.c uses (well, attempts to use) rt_sysc_membase. However,
when this watchdog driver is built as a loadable module, there is a
build error since the rt_sysc_membase symbol is not exported.
Export it to quell the build error.
ERROR: modpost: "rt_sysc_membase" [drivers/watchdog/rt2880_wdt.ko] undefined!
Fixes: 473cf939ff ("watchdog: add ralink watchdog driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: John Crispin <john@phrozen.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-watchdog@vger.kernel.org
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
107 lines
2.4 KiB
C
107 lines
2.4 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_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;
|
|
EXPORT_SYMBOL_GPL(rt_sysc_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),
|
|
res.name))
|
|
panic("Failed to request resources for %s", node);
|
|
|
|
return ioremap(res.start, resource_size(&res));
|
|
}
|
|
|
|
void __init device_tree_init(void)
|
|
{
|
|
unflatten_and_copy_device_tree();
|
|
}
|
|
|
|
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)
|
|
{
|
|
void *dtb = NULL;
|
|
|
|
set_io_port_base(KSEG1);
|
|
|
|
/*
|
|
* Load the builtin devicetree. This causes the chosen node to be
|
|
* parsed resulting in our memory appearing. fw_passed_dtb is used
|
|
* by CONFIG_MIPS_APPENDED_RAW_DTB as well.
|
|
*/
|
|
if (fw_passed_dtb)
|
|
dtb = (void *)fw_passed_dtb;
|
|
else if (__dtb_start != __dtb_end)
|
|
dtb = (void *)__dtb_start;
|
|
|
|
__dt_setup_arch(dtb);
|
|
|
|
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)
|
|
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");
|
|
|
|
/* make sure that the reset controller is setup early */
|
|
ralink_rst_init();
|
|
|
|
return 0;
|
|
}
|
|
|
|
arch_initcall(plat_of_setup);
|