From 371a00448f95adaa612cf1a0b31a11e7093bc706 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Sun, 12 Aug 2012 13:08:05 +0200 Subject: bcma: detect and register NAND flash device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville --- drivers/bcma/driver_chipcommon_nflash.c | 28 +++++++++++++++++++++++++--- 1 file changed, 25 insertions(+), 3 deletions(-) (limited to 'drivers/bcma/driver_chipcommon_nflash.c') diff --git a/drivers/bcma/driver_chipcommon_nflash.c b/drivers/bcma/driver_chipcommon_nflash.c index 574d62435bc2..9042781edec3 100644 --- a/drivers/bcma/driver_chipcommon_nflash.c +++ b/drivers/bcma/driver_chipcommon_nflash.c @@ -5,15 +5,37 @@ * Licensed under the GNU/GPL. See COPYING for details. */ +#include #include -#include -#include #include "bcma_private.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) { - bcma_err(cc->core->bus, "NAND flash support is broken\n"); + struct bcma_bus *bus = cc->core->bus; + + if (bus->chipinfo.id != BCMA_CHIP_ID_BCM4706 && + cc->core->id.rev != 0x38) { + 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; + + /* 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; } -- cgit v1.2.3