1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2007-2011
4 * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
5 * Tom Cubie <tangliang@allwinnertech.com>
6 */
7
8 #include <common.h>
9 #include <asm/io.h>
10 #include <asm/arch/cpu.h>
11 #include <asm/arch/clock.h>
12 #include <axp_pmic.h>
13 #include <errno.h>
14
15 #ifdef CONFIG_MACH_SUN6I
sunxi_get_ss_bonding_id(void)16 int sunxi_get_ss_bonding_id(void)
17 {
18 struct sunxi_ccm_reg * const ccm =
19 (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
20 static int bonding_id = -1;
21
22 if (bonding_id != -1)
23 return bonding_id;
24
25 /* Enable Security System */
26 setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_SS);
27 setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_SS);
28
29 bonding_id = readl(SUNXI_SS_BASE);
30 bonding_id = (bonding_id >> 16) & 0x7;
31
32 /* Disable Security System again */
33 clrbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_SS);
34 clrbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_SS);
35
36 return bonding_id;
37 }
38 #endif
39
40 #ifdef CONFIG_MACH_SUN8I
sunxi_get_sram_id(void)41 uint sunxi_get_sram_id(void)
42 {
43 uint id;
44
45 /* Unlock sram info reg, read it, relock */
46 setbits_le32(SUNXI_SRAMC_BASE + 0x24, (1 << 15));
47 id = readl(SUNXI_SRAMC_BASE + 0x24) >> 16;
48 clrbits_le32(SUNXI_SRAMC_BASE + 0x24, (1 << 15));
49
50 return id;
51 }
52 #endif
53
54 #ifdef CONFIG_DISPLAY_CPUINFO
print_cpuinfo(void)55 int print_cpuinfo(void)
56 {
57 #ifdef CONFIG_MACH_SUN4I
58 puts("CPU: Allwinner A10 (SUN4I)\n");
59 #elif defined CONFIG_MACH_SUN5I
60 u32 val = readl(SUNXI_SID_BASE + 0x08);
61 switch ((val >> 12) & 0xf) {
62 case 0: puts("CPU: Allwinner A12 (SUN5I)\n"); break;
63 case 3: puts("CPU: Allwinner A13 (SUN5I)\n"); break;
64 case 7: puts("CPU: Allwinner A10s (SUN5I)\n"); break;
65 default: puts("CPU: Allwinner A1X (SUN5I)\n");
66 }
67 #elif defined CONFIG_MACH_SUN6I
68 switch (sunxi_get_ss_bonding_id()) {
69 case SUNXI_SS_BOND_ID_A31:
70 puts("CPU: Allwinner A31 (SUN6I)\n");
71 break;
72 case SUNXI_SS_BOND_ID_A31S:
73 puts("CPU: Allwinner A31s (SUN6I)\n");
74 break;
75 default:
76 printf("CPU: Allwinner A31? (SUN6I, id: %d)\n",
77 sunxi_get_ss_bonding_id());
78 }
79 #elif defined CONFIG_MACH_SUN7I
80 puts("CPU: Allwinner A20 (SUN7I)\n");
81 #elif defined CONFIG_MACH_SUN8I_A23
82 printf("CPU: Allwinner A23 (SUN8I %04x)\n", sunxi_get_sram_id());
83 #elif defined CONFIG_MACH_SUN8I_A33
84 printf("CPU: Allwinner A33 (SUN8I %04x)\n", sunxi_get_sram_id());
85 #elif defined CONFIG_MACH_SUN8I_A83T
86 printf("CPU: Allwinner A83T (SUN8I %04x)\n", sunxi_get_sram_id());
87 #elif defined CONFIG_MACH_SUN8I_H3
88 printf("CPU: Allwinner H3 (SUN8I %04x)\n", sunxi_get_sram_id());
89 #elif defined CONFIG_MACH_SUN8I_R40
90 printf("CPU: Allwinner R40 (SUN8I %04x)\n", sunxi_get_sram_id());
91 #elif defined CONFIG_MACH_SUN8I_V3S
92 printf("CPU: Allwinner V3s (SUN8I %04x)\n", sunxi_get_sram_id());
93 #elif defined CONFIG_MACH_SUN9I
94 puts("CPU: Allwinner A80 (SUN9I)\n");
95 #elif defined CONFIG_MACH_SUN50I
96 puts("CPU: Allwinner A64 (SUN50I)\n");
97 #elif defined CONFIG_MACH_SUN50I_H5
98 puts("CPU: Allwinner H5 (SUN50I)\n");
99 #else
100 #warning Please update cpu_info.c with correct CPU information
101 puts("CPU: SUNXI Family\n");
102 #endif
103 return 0;
104 }
105 #endif
106
107 #ifdef CONFIG_MACH_SUN8I_H3
108
109 #define SIDC_PRCTL 0x40
110 #define SIDC_RDKEY 0x60
111
112 #define SIDC_OP_LOCK 0xAC
113
sun8i_efuse_read(uint32_t offset)114 uint32_t sun8i_efuse_read(uint32_t offset)
115 {
116 uint32_t reg_val;
117
118 reg_val = readl(SUNXI_SIDC_BASE + SIDC_PRCTL);
119 reg_val &= ~(((0x1ff) << 16) | 0x3);
120 reg_val |= (offset << 16);
121 writel(reg_val, SUNXI_SIDC_BASE + SIDC_PRCTL);
122
123 reg_val &= ~(((0xff) << 8) | 0x3);
124 reg_val |= (SIDC_OP_LOCK << 8) | 0x2;
125 writel(reg_val, SUNXI_SIDC_BASE + SIDC_PRCTL);
126
127 while (readl(SUNXI_SIDC_BASE + SIDC_PRCTL) & 0x2);
128
129 reg_val &= ~(((0x1ff) << 16) | ((0xff) << 8) | 0x3);
130 writel(reg_val, SUNXI_SIDC_BASE + SIDC_PRCTL);
131
132 reg_val = readl(SUNXI_SIDC_BASE + SIDC_RDKEY);
133 return reg_val;
134 }
135 #endif
136
sunxi_get_sid(unsigned int * sid)137 int sunxi_get_sid(unsigned int *sid)
138 {
139 #ifdef CONFIG_AXP221_POWER
140 return axp_get_sid(sid);
141 #elif defined CONFIG_MACH_SUN8I_H3
142 /*
143 * H3 SID controller has a bug, which makes the initial value of
144 * SUNXI_SID_BASE at boot wrong.
145 * Read the value directly from SID controller, in order to get
146 * the correct value, and also refresh the wrong value at
147 * SUNXI_SID_BASE.
148 */
149 int i;
150
151 for (i = 0; i< 4; i++)
152 sid[i] = sun8i_efuse_read(i * 4);
153
154 return 0;
155 #elif defined SUNXI_SID_BASE
156 int i;
157
158 for (i = 0; i< 4; i++)
159 sid[i] = readl((ulong)SUNXI_SID_BASE + 4 * i);
160
161 return 0;
162 #else
163 return -ENODEV;
164 #endif
165 }
166