3 * 2N Telekomunikace, a.s. <www.2n.cz>
4 * Ladislav Michl <michl@2n.cz>
6 * SPDX-License-Identifier: GPL-2.0
13 #ifndef CONFIG_SYS_NAND_BASE_LIST
14 #define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND_BASE }
17 DECLARE_GLOBAL_DATA_PTR;
19 int nand_curr_device = -1;
22 struct mtd_info *nand_info[CONFIG_SYS_MAX_NAND_DEVICE];
24 #ifndef CONFIG_SYS_NAND_SELF_INIT
25 static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
26 static ulong base_address[CONFIG_SYS_MAX_NAND_DEVICE] = CONFIG_SYS_NAND_BASE_LIST;
29 static char dev_name[CONFIG_SYS_MAX_NAND_DEVICE][8];
31 static unsigned long total_nand_size; /* in kiB */
33 int nand_mtd_to_devnum(struct mtd_info *mtd)
37 for (i = 0; i < ARRAY_SIZE(nand_info); i++) {
38 if (mtd && nand_info[i] == mtd)
45 /* Register an initialized NAND mtd device with the U-Boot NAND command. */
46 int nand_register(int devnum, struct mtd_info *mtd)
48 if (devnum >= CONFIG_SYS_MAX_NAND_DEVICE)
51 nand_info[devnum] = mtd;
53 sprintf(dev_name[devnum], "nand%d", devnum);
54 mtd->name = dev_name[devnum];
56 #ifdef CONFIG_MTD_DEVICE
58 * Add MTD device so that we can reference it later
59 * via the mtdcore infrastructure (e.g. ubi).
64 total_nand_size += mtd->size / 1024;
66 if (nand_curr_device == -1)
67 nand_curr_device = devnum;
72 #ifndef CONFIG_SYS_NAND_SELF_INIT
73 static void nand_init_chip(int i)
75 struct nand_chip *nand = &nand_chip[i];
76 struct mtd_info *mtd = nand_to_mtd(nand);
77 ulong base_addr = base_address[i];
78 int maxchips = CONFIG_SYS_NAND_MAX_CHIPS;
83 nand->IO_ADDR_R = nand->IO_ADDR_W = (void __iomem *)base_addr;
85 if (board_nand_init(nand))
88 if (nand_scan(mtd, maxchips))
91 nand_register(i, mtd);
97 #ifdef CONFIG_SYS_NAND_SELF_INIT
102 for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
106 printf("%lu MiB\n", total_nand_size / 1024);
108 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE
110 * Select the chip in the board/cpu specific driver
112 board_nand_select_device(mtd_to_nand(nand_info[nand_curr_device]),