1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2010
4 * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
5 */
6
7 #include <common.h>
8 #include <asm/io.h>
9 #include <asm/arch/hardware.h>
10 #include <asm/arch/spr_misc.h>
11
arch_cpu_init(void)12 int arch_cpu_init(void)
13 {
14 struct misc_regs *const misc_p =
15 (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
16 u32 periph1_clken, periph_clk_cfg;
17
18 periph1_clken = readl(&misc_p->periph1_clken);
19
20 #if defined(CONFIG_SPEAR3XX)
21 periph1_clken |= MISC_GPT2ENB;
22 #elif defined(CONFIG_SPEAR600)
23 periph1_clken |= MISC_GPT3ENB;
24 #endif
25
26 #if defined(CONFIG_PL011_SERIAL)
27 periph1_clken |= MISC_UART0ENB;
28
29 periph_clk_cfg = readl(&misc_p->periph_clk_cfg);
30 periph_clk_cfg &= ~CONFIG_SPEAR_UARTCLKMSK;
31 periph_clk_cfg |= CONFIG_SPEAR_UART48M;
32 writel(periph_clk_cfg, &misc_p->periph_clk_cfg);
33 #endif
34 #if defined(CONFIG_ETH_DESIGNWARE)
35 periph1_clken |= MISC_ETHENB;
36 #endif
37 #if defined(CONFIG_DW_UDC)
38 periph1_clken |= MISC_USBDENB;
39 #endif
40 #if defined(CONFIG_SYS_I2C_DW)
41 periph1_clken |= MISC_I2CENB;
42 #endif
43 #if defined(CONFIG_ST_SMI)
44 periph1_clken |= MISC_SMIENB;
45 #endif
46 #if defined(CONFIG_NAND_FSMC)
47 periph1_clken |= MISC_FSMCENB;
48 #endif
49 #if defined(CONFIG_USB_EHCI_SPEAR)
50 periph1_clken |= PERIPH_USBH1 | PERIPH_USBH2;
51 #endif
52 #if defined(CONFIG_SPEAR_GPIO)
53 periph1_clken |= MISC_GPIO3ENB | MISC_GPIO4ENB;
54 #endif
55 #if defined(CONFIG_PL022_SPI)
56 periph1_clken |= MISC_SSP1ENB | MISC_SSP2ENB | MISC_SSP3ENB;
57 #endif
58
59 writel(periph1_clken, &misc_p->periph1_clken);
60
61 return 0;
62 }
63
64 #ifdef CONFIG_DISPLAY_CPUINFO
print_cpuinfo(void)65 int print_cpuinfo(void)
66 {
67 #ifdef CONFIG_SPEAR300
68 printf("CPU: SPEAr300\n");
69 #elif defined(CONFIG_SPEAR310)
70 printf("CPU: SPEAr310\n");
71 #elif defined(CONFIG_SPEAR320)
72 printf("CPU: SPEAr320\n");
73 #elif defined(CONFIG_SPEAR600)
74 printf("CPU: SPEAr600\n");
75 #else
76 #error CPU not supported in spear platform
77 #endif
78 return 0;
79 }
80 #endif
81
82 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_NAND_ECC_BCH) && defined(CONFIG_NAND_FSMC)
do_switch_ecc(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])83 static int do_switch_ecc(cmd_tbl_t *cmdtp, int flag, int argc,
84 char *const argv[])
85 {
86 if (argc != 2)
87 goto usage;
88
89 if (strncmp(argv[1], "hw", 2) == 0) {
90 /* 1-bit HW ECC */
91 printf("Switching to 1-bit HW ECC\n");
92 fsmc_nand_switch_ecc(1);
93 } else if (strncmp(argv[1], "bch4", 2) == 0) {
94 /* 4-bit SW ECC BCH4 */
95 printf("Switching to 4-bit SW ECC (BCH4)\n");
96 fsmc_nand_switch_ecc(4);
97 } else {
98 goto usage;
99 }
100
101 return 0;
102
103 usage:
104 printf("Usage: nandecc %s\n", cmdtp->usage);
105 return 1;
106 }
107
108 U_BOOT_CMD(
109 nandecc, 2, 0, do_switch_ecc,
110 "switch NAND ECC calculation algorithm",
111 "hw|bch4 - Switch between NAND hardware 1-bit HW and"
112 " 4-bit SW BCH\n"
113 );
114 #endif
115