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ODROID-COMMON: cpuinfo: set system revision by the board name in DT

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Change-Id: I4ce4da547d246b3c82eb7dddb36a1d747f4d9cef
Signed-off-by: Joshua Yang <joshua.yang@hardkernel.com>
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
This commit is contained in:
Joshua Yang
2019-06-28 15:49:54 +09:00
committed by Dongjin Kim
parent 564a749f5b
commit a7ff8c728c
3 changed files with 37 additions and 3 deletions
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1
arch/arm64/kernel/cpuinfo.c
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@@ -203,7 +203,6 @@ static int c_show(struct seq_file *m, void *v)
seq_puts(m, "\n");
#endif
#endif
system_rev = 0x0400;
seq_printf(m, "Hardware\t: %s\n", machine_name);
seq_printf(m, "Revision\t: %04x\n\n", system_rev);
return 0;

24
arch/arm64/kernel/setup.c
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@@ -64,14 +64,24 @@
#include <asm/xen/hypervisor.h>
#include <asm/mmu_context.h>
#include <linux/platform_data/board_odroid.h>
phys_addr_t __fdt_pointer __initdata;
const char *machine_name;
#ifdef CONFIG_ARCH_MESON64_ODROID_COMMON
const char *machine_name = "Hardkernel ODROID Ref.";
EXPORT_SYMBOL(machine_name);
unsigned int system_rev;
unsigned int system_rev = 0;
EXPORT_SYMBOL(system_rev);
static u32 __odroid_model = 0;
u32 odroid_model(void)
{
return __odroid_model;
}
#endif
/*
* Standard memory resources
*/
@@ -206,6 +216,16 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys)
pr_info("Machine model: %s\n", name);
dump_stack_set_arch_desc("%s (DT)", name);
#ifdef CONFIG_ARCH_MESON64_ODROID_COMMON
if (!strcmp(machine_name, "Hardkernel ODROID-N2")) {
system_rev = 0x0400;
__odroid_model = BOARD_ODROIDN2;
} else if (!strcmp(machine_name, "Hardkernel ODROID-C4")) {
system_rev = 0x0500;
__odroid_model = BOARD_ODROIDC4;
}
#endif
}
static void __init request_standard_resources(void)

15
include/linux/platform_data/board_odroid.h Normal file
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@@ -0,0 +1,15 @@
#ifndef __BOARD_ODROID_H
#define __BOARD_ODROID_H
#include <linux/types.h>
#define BOARD_ODROIDN2 0x09221000
#define BOARD_ODROIDC4 0x09051000
extern bool odroid_amlogic_usb(void);
extern u32 odroid_model(void);
#define board_is_odroidn2() (odroid_model() == BOARD_ODROIDN2)
#define board_is_odroidc4() (odroid_model() == BOARD_ODROIDC4)
#endif