redonkable
/
remarkable-uboot
1
0
Fork 0
Code Releases Activity

sunxi: Print soc-id from sram controller for sun8i boards 

As the need for various magic sram pokes has shown this maybe useful
info to have. e.g. this shows one of my a23 tablets having an id of
1661 rather then the usual 1650 for the a23.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
utp
Hans de Goede 2016-03-24 22:38:23 +01:00
parent 5f8afd704c
commit c74384c680
1 changed files with 19 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
arch/arm/cpu/armv7/sunxi/cpu_info.c
View File

@ -38,6 +38,20 @@ int sunxi_get_ss_bonding_id(void)
}
#endif
#ifdef CONFIG_MACH_SUN8I
uint sunxi_get_sram_id(void)
{
uint id;
/* Unlock sram info reg, read it, relock */
setbits_le32(SUNXI_SRAMC_BASE + 0x24, (1 << 15));
id = readl(SUNXI_SRAMC_BASE + 0x24) >> 16;
clrbits_le32(SUNXI_SRAMC_BASE + 0x24, (1 << 15));
return id;
}
#endif
#ifdef CONFIG_DISPLAY_CPUINFO
int print_cpuinfo(void)
{
@ -66,15 +80,15 @@ int print_cpuinfo(void)
#elif defined CONFIG_MACH_SUN7I
puts("CPU: Allwinner A20 (SUN7I)\n");
#elif defined CONFIG_MACH_SUN8I_A23
puts("CPU: Allwinner A23 (SUN8I)\n");
printf("CPU: Allwinner A23 (SUN8I %04x)\n", sunxi_get_sram_id());
#elif defined CONFIG_MACH_SUN8I_A33
puts("CPU: Allwinner A33 (SUN8I)\n");
printf("CPU: Allwinner A33 (SUN8I %04x)\n", sunxi_get_sram_id());
#elif defined CONFIG_MACH_SUN8I_A83T
printf("CPU: Allwinner A83T (SUN8I %04x)\n", sunxi_get_sram_id());
#elif defined CONFIG_MACH_SUN8I_H3
puts("CPU: Allwinner H3 (SUN8I)\n");
printf("CPU: Allwinner H3 (SUN8I %04x)\n", sunxi_get_sram_id());
#elif defined CONFIG_MACH_SUN9I
puts("CPU: Allwinner A80 (SUN9I)\n");
#elif defined CONFIG_MACH_SUN8I_A83T
puts("CPU: Allwinner A83T (SUN8I)\n");
#else
#warning Please update cpu_info.c with correct CPU information
puts("CPU: SUNXI Family\n");