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ARM: rockchip: rk3288 set system serial when efuse init

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黄涛
2014-09-16 19:51:43 +08:00
parent 7dd3aa1540
commit 003de5bdd2
1 changed files with 17 additions and 0 deletions
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17
arch/arm/mach-rockchip/efuse.c
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@@ -6,9 +6,11 @@
* published by the Free Software Foundation.
*/
#include <linux/crc32.h>
#include <linux/delay.h>
#include <linux/rockchip/cpu.h>
#include <linux/rockchip/iomap.h>
#include <asm/system_info.h>
#include "efuse.h"
#define efuse_readl(offset) readl_relaxed(RK_EFUSE_VIRT + offset)
@@ -73,6 +75,20 @@ static int rk3288_get_leakage(int ch)
return efuse_buf[23+ch];
}
static void __init rk3288_set_system_serial(void)
{
int i;
u8 buf[16];
for (i = 0; i < 8; i++) {
buf[i] = efuse_buf[8 + (i << 1)];
buf[i + 8] = efuse_buf[7 + (i << 1)];
}
system_serial_low = crc32(0, buf, 8);
system_serial_high = crc32(system_serial_low, buf + 8, 8);
}
int rockchip_efuse_version(void)
{
return efuse.efuse_version;
@@ -95,6 +111,7 @@ void __init rockchip_efuse_init(void)
efuse.get_leakage = rk3288_get_leakage;
efuse.efuse_version = rk3288_get_efuse_version();
rockchip_set_cpu_version((efuse_buf[6] >> 4) & 3);
rk3288_set_system_serial();
} else {
pr_err("failed to read eFuse, return %d\n", ret);
}