mirror of
https://github.com/torvalds/linux.git
synced 2024-12-12 14:12:51 +00:00
a9fee3a513
Add JZ4775, X1000E, X2000, and X2000E system type for cat /proc/cpuinfo to give out JZ4775, X1000E, X2000 and X2000E. Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
121 lines
3.0 KiB
C
121 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Support for Ingenic SoCs
|
|
*
|
|
* Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
|
|
* Copyright (C) 2011, Maarten ter Huurne <maarten@treewalker.org>
|
|
* Copyright (C) 2020 Paul Cercueil <paul@crapouillou.net>
|
|
*/
|
|
|
|
#include <linux/of_address.h>
|
|
#include <linux/of_fdt.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/sizes.h>
|
|
#include <linux/suspend.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/machine.h>
|
|
#include <asm/reboot.h>
|
|
|
|
static __init char *ingenic_get_system_type(unsigned long machtype)
|
|
{
|
|
switch (machtype) {
|
|
case MACH_INGENIC_X2000E:
|
|
return "X2000E";
|
|
case MACH_INGENIC_X2000:
|
|
return "X2000";
|
|
case MACH_INGENIC_X1830:
|
|
return "X1830";
|
|
case MACH_INGENIC_X1000E:
|
|
return "X1000E";
|
|
case MACH_INGENIC_X1000:
|
|
return "X1000";
|
|
case MACH_INGENIC_JZ4780:
|
|
return "JZ4780";
|
|
case MACH_INGENIC_JZ4775:
|
|
return "JZ4775";
|
|
case MACH_INGENIC_JZ4770:
|
|
return "JZ4770";
|
|
case MACH_INGENIC_JZ4725B:
|
|
return "JZ4725B";
|
|
default:
|
|
return "JZ4740";
|
|
}
|
|
}
|
|
|
|
static __init const void *ingenic_fixup_fdt(const void *fdt, const void *match_data)
|
|
{
|
|
/*
|
|
* Old devicetree files for the qi,lb60 board did not have a /memory
|
|
* node. Hardcode the memory info here.
|
|
*/
|
|
if (!fdt_node_check_compatible(fdt, 0, "qi,lb60") &&
|
|
fdt_path_offset(fdt, "/memory") < 0)
|
|
early_init_dt_add_memory_arch(0, SZ_32M);
|
|
|
|
mips_machtype = (unsigned long)match_data;
|
|
system_type = ingenic_get_system_type(mips_machtype);
|
|
|
|
return fdt;
|
|
}
|
|
|
|
static const struct of_device_id ingenic_of_match[] __initconst = {
|
|
{ .compatible = "ingenic,jz4740", .data = (void *)MACH_INGENIC_JZ4740 },
|
|
{ .compatible = "ingenic,jz4725b", .data = (void *)MACH_INGENIC_JZ4725B },
|
|
{ .compatible = "ingenic,jz4770", .data = (void *)MACH_INGENIC_JZ4770 },
|
|
{ .compatible = "ingenic,jz4775", .data = (void *)MACH_INGENIC_JZ4775 },
|
|
{ .compatible = "ingenic,jz4780", .data = (void *)MACH_INGENIC_JZ4780 },
|
|
{ .compatible = "ingenic,x1000", .data = (void *)MACH_INGENIC_X1000 },
|
|
{ .compatible = "ingenic,x1000e", .data = (void *)MACH_INGENIC_X1000E },
|
|
{ .compatible = "ingenic,x1830", .data = (void *)MACH_INGENIC_X1830 },
|
|
{ .compatible = "ingenic,x2000", .data = (void *)MACH_INGENIC_X2000 },
|
|
{ .compatible = "ingenic,x2000e", .data = (void *)MACH_INGENIC_X2000E },
|
|
{}
|
|
};
|
|
|
|
MIPS_MACHINE(ingenic) = {
|
|
.matches = ingenic_of_match,
|
|
.fixup_fdt = ingenic_fixup_fdt,
|
|
};
|
|
|
|
static void ingenic_wait_instr(void)
|
|
{
|
|
__asm__(".set push;\n"
|
|
".set mips3;\n"
|
|
"wait;\n"
|
|
".set pop;\n"
|
|
);
|
|
}
|
|
|
|
static void ingenic_halt(void)
|
|
{
|
|
for (;;)
|
|
ingenic_wait_instr();
|
|
}
|
|
|
|
static int __maybe_unused ingenic_pm_enter(suspend_state_t state)
|
|
{
|
|
ingenic_wait_instr();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct platform_suspend_ops ingenic_pm_ops __maybe_unused = {
|
|
.valid = suspend_valid_only_mem,
|
|
.enter = ingenic_pm_enter,
|
|
};
|
|
|
|
static int __init ingenic_pm_init(void)
|
|
{
|
|
if (boot_cpu_type() == CPU_XBURST) {
|
|
if (IS_ENABLED(CONFIG_PM_SLEEP))
|
|
suspend_set_ops(&ingenic_pm_ops);
|
|
_machine_halt = ingenic_halt;
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
late_initcall(ingenic_pm_init);
|