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[people/ms/u-boot.git] / arch / arm / cpu / armv7 / sunxi / cpu_info.c
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1/*
2 * (C) Copyright 2007-2011
3 * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
4 * Tom Cubie <tangliang@allwinnertech.com>
5 *
6 * SPDX-License-Identifier: GPL-2.0+
7 */
8
9#include <common.h>
10#include <asm/io.h>
11#include <asm/arch/cpu.h>
10191ed0 12#include <asm/arch/clock.h>
cac5b1cc 13#include <axp221.h>
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14
15#ifdef CONFIG_MACH_SUN6I
16int 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
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39
40#ifdef CONFIG_DISPLAY_CPUINFO
41int print_cpuinfo(void)
42{
ed41e62f 43#ifdef CONFIG_MACH_SUN4I
745325a9 44 puts("CPU: Allwinner A10 (SUN4I)\n");
ed41e62f 45#elif defined CONFIG_MACH_SUN5I
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46 u32 val = readl(SUNXI_SID_BASE + 0x08);
47 switch ((val >> 12) & 0xf) {
48 case 0: puts("CPU: Allwinner A12 (SUN5I)\n"); break;
49 case 3: puts("CPU: Allwinner A13 (SUN5I)\n"); break;
50 case 7: puts("CPU: Allwinner A10s (SUN5I)\n"); break;
51 default: puts("CPU: Allwinner A1X (SUN5I)\n");
52 }
ed41e62f 53#elif defined CONFIG_MACH_SUN6I
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54 switch (sunxi_get_ss_bonding_id()) {
55 case SUNXI_SS_BOND_ID_A31:
56 puts("CPU: Allwinner A31 (SUN6I)\n");
57 break;
58 case SUNXI_SS_BOND_ID_A31S:
59 puts("CPU: Allwinner A31s (SUN6I)\n");
60 break;
61 default:
62 printf("CPU: Allwinner A31? (SUN6I, id: %d)\n",
63 sunxi_get_ss_bonding_id());
64 }
ed41e62f 65#elif defined CONFIG_MACH_SUN7I
cba69eee 66 puts("CPU: Allwinner A20 (SUN7I)\n");
5e6bacdb 67#elif defined CONFIG_MACH_SUN8I_A23
8ebe4f42 68 puts("CPU: Allwinner A23 (SUN8I)\n");
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69#else
70#warning Please update cpu_info.c with correct CPU information
71 puts("CPU: SUNXI Family\n");
72#endif
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73 return 0;
74}
75#endif
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76
77int sunxi_get_sid(unsigned int *sid)
78{
5e6bacdb 79#if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I_A23
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80#ifdef CONFIG_AXP221_POWER
81 return axp221_get_sid(sid);
82#else
83 return -ENODEV;
84#endif
85#else
86 int i;
87
88 for (i = 0; i< 4; i++)
89 sid[i] = readl(SUNXI_SID_BASE + 4 * i);
90
91 return 0;
92#endif
93}