/* * Broadcom specific AMBA * ChipCommon NAND flash interface * * Licensed under the GNU/GPL. See COPYING for details. */ #include "bcma_private.h" #include <linux/platform_device.h> #include <linux/bcma/bcma.h> struct platform_device bcma_nflash_dev = { .name = "bcma_nflash", .num_resources = 0, }; /* Initialize NAND flash access */ int bcma_nflash_init(struct bcma_drv_cc *cc) { struct bcma_bus *bus = cc->core->bus; if (bus->chipinfo.id != BCMA_CHIP_ID_BCM4706 && cc->core->id.rev != 38) { bcma_err(bus, "NAND flash on unsupported board!\n"); return -ENOTSUPP; } if (!(cc->capabilities & BCMA_CC_CAP_NFLASH)) { bcma_err(bus, "NAND flash not present according to ChipCommon\n"); return -ENODEV; } cc->nflash.present = true; if (cc->core->id.rev == 38 && (cc->status & BCMA_CC_CHIPST_5357_NAND_BOOT)) cc->nflash.boot = true; /* Prepare platform device, but don't register it yet. It's too early, * malloc (required by device_private_init) is not available yet. */ bcma_nflash_dev.dev.platform_data = &cc->nflash; return 0; }