u-boot/arch/arm/mach-sunxi/cpu_info.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

165 lines
4.3 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2007-2011
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
* Tom Cubie <tangliang@allwinnertech.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/clock.h>
#include <axp_pmic.h>
#include <errno.h>
#ifdef CONFIG_MACH_SUN6I
int sunxi_get_ss_bonding_id(void)
{
struct sunxi_ccm_reg * const ccm =
(struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
static int bonding_id = -1;
if (bonding_id != -1)
return bonding_id;
/* Enable Security System */
setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_SS);
setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_SS);
bonding_id = readl(SUNXI_SS_BASE);
bonding_id = (bonding_id >> 16) & 0x7;
/* Disable Security System again */
clrbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_SS);
clrbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_SS);
return bonding_id;
}
#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)
{
#ifdef CONFIG_MACH_SUN4I
puts("CPU: Allwinner A10 (SUN4I)\n");
#elif defined CONFIG_MACH_SUN5I
u32 val = readl(SUNXI_SID_BASE + 0x08);
switch ((val >> 12) & 0xf) {
case 0: puts("CPU: Allwinner A12 (SUN5I)\n"); break;
case 3: puts("CPU: Allwinner A13 (SUN5I)\n"); break;
case 7: puts("CPU: Allwinner A10s (SUN5I)\n"); break;
default: puts("CPU: Allwinner A1X (SUN5I)\n");
}
#elif defined CONFIG_MACH_SUN6I
switch (sunxi_get_ss_bonding_id()) {
case SUNXI_SS_BOND_ID_A31:
puts("CPU: Allwinner A31 (SUN6I)\n");
break;
case SUNXI_SS_BOND_ID_A31S:
puts("CPU: Allwinner A31s (SUN6I)\n");
break;
default:
printf("CPU: Allwinner A31? (SUN6I, id: %d)\n",
sunxi_get_ss_bonding_id());
}
#elif defined CONFIG_MACH_SUN7I
puts("CPU: Allwinner A20 (SUN7I)\n");
#elif defined CONFIG_MACH_SUN8I_A23
printf("CPU: Allwinner A23 (SUN8I %04x)\n", sunxi_get_sram_id());
#elif defined CONFIG_MACH_SUN8I_A33
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
printf("CPU: Allwinner H3 (SUN8I %04x)\n", sunxi_get_sram_id());
#elif defined CONFIG_MACH_SUN8I_R40
printf("CPU: Allwinner R40 (SUN8I %04x)\n", sunxi_get_sram_id());
#elif defined CONFIG_MACH_SUN8I_V3S
printf("CPU: Allwinner V3s (SUN8I %04x)\n", sunxi_get_sram_id());
#elif defined CONFIG_MACH_SUN9I
puts("CPU: Allwinner A80 (SUN9I)\n");
#elif defined CONFIG_MACH_SUN50I
puts("CPU: Allwinner A64 (SUN50I)\n");
#elif defined CONFIG_MACH_SUN50I_H5
puts("CPU: Allwinner H5 (SUN50I)\n");
#else
#warning Please update cpu_info.c with correct CPU information
puts("CPU: SUNXI Family\n");
#endif
return 0;
}
#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;
for (i = 0; i< 4; i++)
sid[i] = readl((ulong)SUNXI_SID_BASE + 4 * i);
return 0;
#else
return -ENODEV;
#endif
}