1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2017 Andes Technology Corporation
4  * Rick Chen, Andes Technology Corporation <rick@andestech.com>
5  */
6 
7 #include <common.h>
8 #if defined(CONFIG_FTMAC100) && !defined(CONFIG_DM_ETH)
9 #include <netdev.h>
10 #endif
11 #include <linux/io.h>
12 #include <faraday/ftsmc020.h>
13 #include <fdtdec.h>
14 
15 DECLARE_GLOBAL_DATA_PTR;
16 
17 /*
18  * Miscellaneous platform dependent initializations
19  */
20 
21 int board_init(void)
22 {
23 	gd->bd->bi_boot_params = PHYS_SDRAM_0 + 0x400;
24 
25 	return 0;
26 }
27 
28 int dram_init(void)
29 {
30 	unsigned long sdram_base = PHYS_SDRAM_0;
31 	unsigned long expected_size = PHYS_SDRAM_0_SIZE + PHYS_SDRAM_1_SIZE;
32 	unsigned long actual_size;
33 
34 	actual_size = get_ram_size((void *)sdram_base, expected_size);
35 	gd->ram_size = actual_size;
36 
37 	if (expected_size != actual_size) {
38 		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
39 			actual_size >> 20, expected_size >> 20);
40 	}
41 
42 	return 0;
43 }
44 
45 int dram_init_banksize(void)
46 {
47 	gd->bd->bi_dram[0].start = PHYS_SDRAM_0;
48 	gd->bd->bi_dram[0].size =  PHYS_SDRAM_0_SIZE;
49 	gd->bd->bi_dram[1].start = PHYS_SDRAM_1;
50 	gd->bd->bi_dram[1].size =  PHYS_SDRAM_1_SIZE;
51 
52 	return 0;
53 }
54 
55 #if defined(CONFIG_FTMAC100) && !defined(CONFIG_DM_ETH)
56 int board_eth_init(bd_t *bd)
57 {
58 	return ftmac100_initialize(bd);
59 }
60 #endif
61 
62 ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
63 {
64 	return 0;
65 }
66 
67 void *board_fdt_blob_setup(void)
68 {
69 	void **ptr = (void *)CONFIG_SYS_SDRAM_BASE;
70 	if (fdt_magic(*ptr) == FDT_MAGIC)
71 			return (void *)*ptr;
72 
73 	return (void *)CONFIG_SYS_FDT_BASE;
74 }
75 
76 int smc_init(void)
77 {
78 	int node = -1;
79 	const char *compat = "andestech,atfsmc020";
80 	void *blob = (void *)gd->fdt_blob;
81 	fdt_addr_t addr;
82 	struct ftsmc020_bank *regs;
83 
84 	node = fdt_node_offset_by_compatible(blob, -1, compat);
85 	if (node < 0)
86 		return -FDT_ERR_NOTFOUND;
87 
88 	addr = fdtdec_get_addr(blob, node, "reg");
89 
90 	if (addr == FDT_ADDR_T_NONE)
91 		return -EINVAL;
92 
93 	regs = (struct ftsmc020_bank *)addr;
94 	regs->cr &= ~FTSMC020_BANK_WPROT;
95 
96 	return 0;
97 }
98 
99 #ifdef CONFIG_BOARD_EARLY_INIT_F
100 int board_early_init_f(void)
101 {
102 	smc_init();
103 
104 	return 0;
105 }
106 #endif
107