2 * (C) Copyright 2007-2011
3 * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
4 * Tom Cubie <tangliang@allwinnertech.com>
6 * SPDX-License-Identifier: GPL-2.0+
11 #include <asm/arch/cpu.h>
12 #include <asm/arch/clock.h>
16 #ifdef CONFIG_MACH_SUN6I
17 int sunxi_get_ss_bonding_id(void)
19 struct sunxi_ccm_reg * const ccm =
20 (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
21 static int bonding_id = -1;
26 /* Enable Security System */
27 setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_SS);
28 setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_SS);
30 bonding_id = readl(SUNXI_SS_BASE);
31 bonding_id = (bonding_id >> 16) & 0x7;
33 /* Disable Security System again */
34 clrbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_SS);
35 clrbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_SS);
41 #ifdef CONFIG_MACH_SUN8I
42 uint sunxi_get_sram_id(void)
46 /* Unlock sram info reg, read it, relock */
47 setbits_le32(SUNXI_SRAMC_BASE + 0x24, (1 << 15));
48 id = readl(SUNXI_SRAMC_BASE + 0x24) >> 16;
49 clrbits_le32(SUNXI_SRAMC_BASE + 0x24, (1 << 15));
55 #ifdef CONFIG_DISPLAY_CPUINFO
56 int print_cpuinfo(void)
58 #ifdef CONFIG_MACH_SUN4I
59 puts("CPU: Allwinner A10 (SUN4I)\n");
60 #elif defined CONFIG_MACH_SUN5I
61 u32 val = readl(SUNXI_SID_BASE + 0x08);
62 switch ((val >> 12) & 0xf) {
63 case 0: puts("CPU: Allwinner A12 (SUN5I)\n"); break;
64 case 3: puts("CPU: Allwinner A13 (SUN5I)\n"); break;
65 case 7: puts("CPU: Allwinner A10s (SUN5I)\n"); break;
66 default: puts("CPU: Allwinner A1X (SUN5I)\n");
68 #elif defined CONFIG_MACH_SUN6I
69 switch (sunxi_get_ss_bonding_id()) {
70 case SUNXI_SS_BOND_ID_A31:
71 puts("CPU: Allwinner A31 (SUN6I)\n");
73 case SUNXI_SS_BOND_ID_A31S:
74 puts("CPU: Allwinner A31s (SUN6I)\n");
77 printf("CPU: Allwinner A31? (SUN6I, id: %d)\n",
78 sunxi_get_ss_bonding_id());
80 #elif defined CONFIG_MACH_SUN7I
81 puts("CPU: Allwinner A20 (SUN7I)\n");
82 #elif defined CONFIG_MACH_SUN8I_A23
83 printf("CPU: Allwinner A23 (SUN8I %04x)\n", sunxi_get_sram_id());
84 #elif defined CONFIG_MACH_SUN8I_A33
85 printf("CPU: Allwinner A33 (SUN8I %04x)\n", sunxi_get_sram_id());
86 #elif defined CONFIG_MACH_SUN8I_A83T
87 printf("CPU: Allwinner A83T (SUN8I %04x)\n", sunxi_get_sram_id());
88 #elif defined CONFIG_MACH_SUN8I_H3
89 printf("CPU: Allwinner H3 (SUN8I %04x)\n", sunxi_get_sram_id());
90 #elif defined CONFIG_MACH_SUN9I
91 puts("CPU: Allwinner A80 (SUN9I)\n");
93 #warning Please update cpu_info.c with correct CPU information
94 puts("CPU: SUNXI Family\n");
100 int sunxi_get_sid(unsigned int *sid)
102 #ifdef CONFIG_AXP221_POWER
103 return axp_get_sid(sid);
104 #elif defined SUNXI_SID_BASE
107 for (i = 0; i< 4; i++)
108 sid[i] = readl(SUNXI_SID_BASE + 4 * i);