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[karo-tx-uboot.git] / arch / arm / cpu / arm926ejs / spear / cpu.c
1 /*
2  * (C) Copyright 2010
3  * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #include <asm/io.h>
10 #include <asm/arch/hardware.h>
11 #include <asm/arch/spr_misc.h>
12
13 int arch_cpu_init(void)
14 {
15         struct misc_regs *const misc_p =
16             (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
17         u32 periph1_clken, periph_clk_cfg;
18
19         periph1_clken = readl(&misc_p->periph1_clken);
20
21 #if defined(CONFIG_SPEAR3XX)
22         periph1_clken |= MISC_GPT2ENB;
23 #elif defined(CONFIG_SPEAR600)
24         periph1_clken |= MISC_GPT3ENB;
25 #endif
26
27 #if defined(CONFIG_PL011_SERIAL)
28         periph1_clken |= MISC_UART0ENB;
29
30         periph_clk_cfg = readl(&misc_p->periph_clk_cfg);
31         periph_clk_cfg &= ~CONFIG_SPEAR_UARTCLKMSK;
32         periph_clk_cfg |= CONFIG_SPEAR_UART48M;
33         writel(periph_clk_cfg, &misc_p->periph_clk_cfg);
34 #endif
35 #if defined(CONFIG_DESIGNWARE_ETH)
36         periph1_clken |= MISC_ETHENB;
37 #endif
38 #if defined(CONFIG_DW_UDC)
39         periph1_clken |= MISC_USBDENB;
40 #endif
41 #if defined(CONFIG_SYS_I2C_DW)
42         periph1_clken |= MISC_I2CENB;
43 #endif
44 #if defined(CONFIG_ST_SMI)
45         periph1_clken |= MISC_SMIENB;
46 #endif
47 #if defined(CONFIG_NAND_FSMC)
48         periph1_clken |= MISC_FSMCENB;
49 #endif
50
51         writel(periph1_clken, &misc_p->periph1_clken);
52         return 0;
53 }
54
55 #ifdef CONFIG_DISPLAY_CPUINFO
56 int print_cpuinfo(void)
57 {
58 #ifdef CONFIG_SPEAR300
59         printf("CPU:   SPEAr300\n");
60 #elif defined(CONFIG_SPEAR310)
61         printf("CPU:   SPEAr310\n");
62 #elif defined(CONFIG_SPEAR320)
63         printf("CPU:   SPEAr320\n");
64 #elif defined(CONFIG_SPEAR600)
65         printf("CPU:   SPEAr600\n");
66 #else
67 #error CPU not supported in spear platform
68 #endif
69         return 0;
70 }
71 #endif