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Merge branch 'master' of git://git.denx.de/u-boot-sunxi

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This commit is contained in:
Tom Rini 2016-12-23 18:41:56 -05:00
commit a5b24110ca
2 changed files with 45 additions and 0 deletions
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1
arch/arm/include/asm/arch-sunxi/cpu_sun4i.h
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@ -97,6 +97,7 @@
#if defined(CONFIG_MACH_SUN8I_A83T) || defined(CONFIG_MACH_SUN8I_H3) || \
defined(CONFIG_MACH_SUN50I)
/* SID address space starts at 0x01c1400, but e-fuse is at offset 0x200 */
#define SUNXI_SIDC_BASE 0x01c14000
#define SUNXI_SID_BASE 0x01c14200
#else
#define SUNXI_SID_BASE 0x01c23800

44
arch/arm/mach-sunxi/cpu_info.c
View File

@ -99,10 +99,54 @@ int print_cpuinfo(void)
}
#endif
#ifdef CONFIG_MACH_SUN8I_H3
#define SIDC_PRCTL 0x40
#define SIDC_RDKEY 0x60
#define SIDC_OP_LOCK 0xAC
uint32_t sun8i_efuse_read(uint32_t offset)
{
uint32_t reg_val;
reg_val = readl(SUNXI_SIDC_BASE + SIDC_PRCTL);
reg_val &= ~(((0x1ff) << 16) | 0x3);
reg_val |= (offset << 16);
writel(reg_val, SUNXI_SIDC_BASE + SIDC_PRCTL);
reg_val &= ~(((0xff) << 8) | 0x3);
reg_val |= (SIDC_OP_LOCK << 8) | 0x2;
writel(reg_val, SUNXI_SIDC_BASE + SIDC_PRCTL);
while (readl(SUNXI_SIDC_BASE + SIDC_PRCTL) & 0x2);
reg_val &= ~(((0x1ff) << 16) | ((0xff) << 8) | 0x3);
writel(reg_val, SUNXI_SIDC_BASE + SIDC_PRCTL);
reg_val = readl(SUNXI_SIDC_BASE + SIDC_RDKEY);
return reg_val;
}
#endif
int sunxi_get_sid(unsigned int *sid)
{
#ifdef CONFIG_AXP221_POWER
return axp_get_sid(sid);
#elif defined CONFIG_MACH_SUN8I_H3
/*
* H3 SID controller has a bug, which makes the initial value of
* SUNXI_SID_BASE at boot wrong.
* Read the value directly from SID controller, in order to get
* the correct value, and also refresh the wrong value at
* SUNXI_SID_BASE.
*/
int i;
for (i = 0; i< 4; i++)
sid[i] = sun8i_efuse_read(i * 4);
return 0;
#elif defined SUNXI_SID_BASE
int i;