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 <asm/mach-types.h>
8 #include <common.h>
9 #if defined(CONFIG_FTMAC100) && !defined(CONFIG_DM_ETH)
10 #include <netdev.h>
11 #endif
12 #include <linux/io.h>
13 #include <faraday/ftsmc020.h>
14 #include <fdtdec.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 /*
19  * Miscellaneous platform dependent initializations
20  */
21 
22 int board_init(void)
23 {
24 	gd->bd->bi_arch_number = MACH_TYPE_AE350;
25 	gd->bd->bi_boot_params = PHYS_SDRAM_0 + 0x400;
26 
27 	return 0;
28 }
29 
30 int dram_init(void)
31 {
32 	unsigned long sdram_base = PHYS_SDRAM_0;
33 	unsigned long expected_size = PHYS_SDRAM_0_SIZE + PHYS_SDRAM_1_SIZE;
34 	unsigned long actual_size;
35 
36 	actual_size = get_ram_size((void *)sdram_base, expected_size);
37 	gd->ram_size = actual_size;
38 
39 	if (expected_size != actual_size) {
40 		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
41 			actual_size >> 20, expected_size >> 20);
42 	}
43 
44 	return 0;
45 }
46 
47 int dram_init_banksize(void)
48 {
49 	gd->bd->bi_dram[0].start = PHYS_SDRAM_0;
50 	gd->bd->bi_dram[0].size =  PHYS_SDRAM_0_SIZE;
51 	gd->bd->bi_dram[1].start = PHYS_SDRAM_1;
52 	gd->bd->bi_dram[1].size =  PHYS_SDRAM_1_SIZE;
53 
54 	return 0;
55 }
56 
57 #if defined(CONFIG_FTMAC100) && !defined(CONFIG_DM_ETH)
58 int board_eth_init(bd_t *bd)
59 {
60 	return ftmac100_initialize(bd);
61 }
62 #endif
63 
64 ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
65 {
66 	return 0;
67 }
68 
69 void *board_fdt_blob_setup(void)
70 {
71 	void **ptr = (void *)CONFIG_SYS_SDRAM_BASE;
72 	if (fdt_magic(*ptr) == FDT_MAGIC)
73 			return (void *)*ptr;
74 
75 	return (void *)CONFIG_SYS_FDT_BASE;
76 }
77 
78 int smc_init(void)
79 {
80 	int node = -1;
81 	const char *compat = "andestech,atfsmc020";
82 	void *blob = (void *)gd->fdt_blob;
83 	fdt_addr_t addr;
84 	struct ftsmc020_bank *regs;
85 
86 	node = fdt_node_offset_by_compatible(blob, -1, compat);
87 	if (node < 0)
88 		return -FDT_ERR_NOTFOUND;
89 
90 	addr = fdtdec_get_addr(blob, node, "reg");
91 
92 	if (addr == FDT_ADDR_T_NONE)
93 		return -EINVAL;
94 
95 	regs = (struct ftsmc020_bank *)addr;
96 	regs->cr &= ~FTSMC020_BANK_WPROT;
97 
98 	return 0;
99 }
100 
101 #ifdef CONFIG_BOARD_EARLY_INIT_F
102 int board_early_init_f(void)
103 {
104 	smc_init();
105 
106 	return 0;
107 }
108 #endif
109