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 extern phys_addr_t prior_stage_fdt_address;
18 /*
19  * Miscellaneous platform dependent initializations
20  */
21 
22 int board_init(void)
23 {
24 	gd->bd->bi_boot_params = PHYS_SDRAM_0 + 0x400;
25 
26 	return 0;
27 }
28 
29 int dram_init(void)
30 {
31 	unsigned long sdram_base = PHYS_SDRAM_0;
32 	unsigned long expected_size = PHYS_SDRAM_0_SIZE + PHYS_SDRAM_1_SIZE;
33 	unsigned long actual_size;
34 
35 	actual_size = get_ram_size((void *)sdram_base, expected_size);
36 	gd->ram_size = actual_size;
37 
38 	if (expected_size != actual_size) {
39 		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
40 			actual_size >> 20, expected_size >> 20);
41 	}
42 
43 	return 0;
44 }
45 
46 int dram_init_banksize(void)
47 {
48 	gd->bd->bi_dram[0].start = PHYS_SDRAM_0;
49 	gd->bd->bi_dram[0].size =  PHYS_SDRAM_0_SIZE;
50 	gd->bd->bi_dram[1].start = PHYS_SDRAM_1;
51 	gd->bd->bi_dram[1].size =  PHYS_SDRAM_1_SIZE;
52 
53 	return 0;
54 }
55 
56 #if defined(CONFIG_FTMAC100) && !defined(CONFIG_DM_ETH)
57 int board_eth_init(bd_t *bd)
58 {
59 	return ftmac100_initialize(bd);
60 }
61 #endif
62 
63 ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
64 {
65 	return 0;
66 }
67 
68 void *board_fdt_blob_setup(void)
69 {
70 	void **ptr = (void *)&prior_stage_fdt_address;
71 	if (fdt_magic(*ptr) == FDT_MAGIC)
72 			return (void *)*ptr;
73 
74 	return (void *)CONFIG_SYS_FDT_BASE;
75 }
76 
77 int smc_init(void)
78 {
79 	int node = -1;
80 	const char *compat = "andestech,atfsmc020";
81 	void *blob = (void *)gd->fdt_blob;
82 	fdt_addr_t addr;
83 	struct ftsmc020_bank *regs;
84 
85 	node = fdt_node_offset_by_compatible(blob, -1, compat);
86 	if (node < 0)
87 		return -FDT_ERR_NOTFOUND;
88 
89 	addr = fdtdec_get_addr(blob, node, "reg");
90 
91 	if (addr == FDT_ADDR_T_NONE)
92 		return -EINVAL;
93 
94 	regs = (struct ftsmc020_bank *)addr;
95 	regs->cr &= ~FTSMC020_BANK_WPROT;
96 
97 	return 0;
98 }
99 
100 #ifdef CONFIG_BOARD_EARLY_INIT_F
101 int board_early_init_f(void)
102 {
103 	smc_init();
104 
105 	return 0;
106 }
107 #endif
108