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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/mtd/nand/bcm47xxnflash/main.c
Initial import
Diffstat (limited to 'drivers/mtd/nand/bcm47xxnflash/main.c')
-rw-r--r--drivers/mtd/nand/bcm47xxnflash/main.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c
new file mode 100644
index 000000000..461577cfb
--- /dev/null
+++ b/drivers/mtd/nand/bcm47xxnflash/main.c
@@ -0,0 +1,79 @@
+/*
+ * BCM47XX NAND flash driver
+ *
+ * Copyright (C) 2012 Rafał Miłecki <zajec5@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include "bcm47xxnflash.h"
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/bcma/bcma.h>
+
+MODULE_DESCRIPTION("NAND flash driver for BCMA bus");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Rafał Miłecki");
+
+static const char *probes[] = { "bcm47xxpart", NULL };
+
+static int bcm47xxnflash_probe(struct platform_device *pdev)
+{
+ struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev);
+ struct bcm47xxnflash *b47n;
+ int err = 0;
+
+ b47n = devm_kzalloc(&pdev->dev, sizeof(*b47n), GFP_KERNEL);
+ if (!b47n)
+ return -ENOMEM;
+
+ b47n->nand_chip.priv = b47n;
+ b47n->mtd.owner = THIS_MODULE;
+ b47n->mtd.priv = &b47n->nand_chip; /* Required */
+ b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash);
+
+ if (b47n->cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) {
+ err = bcm47xxnflash_ops_bcm4706_init(b47n);
+ } else {
+ pr_err("Device not supported\n");
+ err = -ENOTSUPP;
+ }
+ if (err) {
+ pr_err("Initialization failed: %d\n", err);
+ return err;
+ }
+
+ err = mtd_device_parse_register(&b47n->mtd, probes, NULL, NULL, 0);
+ if (err) {
+ pr_err("Failed to register MTD device: %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static int bcm47xxnflash_remove(struct platform_device *pdev)
+{
+ struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev);
+
+ if (nflash->mtd)
+ mtd_device_unregister(nflash->mtd);
+
+ return 0;
+}
+
+static struct platform_driver bcm47xxnflash_driver = {
+ .probe = bcm47xxnflash_probe,
+ .remove = bcm47xxnflash_remove,
+ .driver = {
+ .name = "bcma_nflash",
+ },
+};
+
+module_platform_driver(bcm47xxnflash_driver);