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@@ -0,0 +1,95 @@
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+/*
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+ * Atheros AR934X SoCs built-in NAND flash controller support
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+ *
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+ * Copyright (C) 2011-2012 Gabor Juhos <[email protected]>
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License version 2 as published
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+ * by the Free Software Foundation.
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/delay.h>
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+#include <linux/init.h>
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+#include <linux/irq.h>
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+#include <linux/dma-mapping.h>
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+#include <linux/etherdevice.h>
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+#include <linux/platform_device.h>
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+#include <linux/platform/ar934x_nfc.h>
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+
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+#include <asm/mach-ath79/ath79.h>
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+#include <asm/mach-ath79/ar71xx_regs.h>
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+
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+#include "dev-nfc.h"
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+
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+static struct resource ath79_nfc_resources[2];
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+static u64 ar934x_nfc_dmamask = DMA_BIT_MASK(32);
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+static struct ar934x_nfc_platform_data ath79_nfc_data;
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+
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+static struct platform_device ath79_nfc_device = {
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+ .name = AR934X_NFC_DRIVER_NAME,
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+ .id = -1,
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+ .resource = ath79_nfc_resources,
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+ .num_resources = ARRAY_SIZE(ath79_nfc_resources),
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+ .dev = {
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+ .dma_mask = &ar934x_nfc_dmamask,
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+ .coherent_dma_mask = DMA_BIT_MASK(32),
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+ .platform_data = &ath79_nfc_data,
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+ },
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+};
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+
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+static void ar934x_nfc_hw_reset(bool active)
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+{
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+ if (active) {
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+ ath79_device_reset_set(AR934X_RESET_NANDF);
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+ udelay(100);
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+
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+ ath79_device_reset_set(AR934X_RESET_ETH_SWITCH_ANALOG);
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+ udelay(250);
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+ } else {
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+ ath79_device_reset_clear(AR934X_RESET_ETH_SWITCH_ANALOG);
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+ udelay(250);
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+
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+ ath79_device_reset_clear(AR934X_RESET_NANDF);
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+ udelay(100);
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+ }
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+}
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+
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+static void ar934x_nfc_setup(void)
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+{
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+ ath79_nfc_resources[0].start = AR934X_NFC_BASE;
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+ ath79_nfc_resources[0].end = AR934X_NFC_BASE + AR934X_NFC_SIZE - 1;
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+ ath79_nfc_resources[0].flags = IORESOURCE_MEM;
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+
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+ ath79_nfc_resources[1].start = ATH79_MISC_IRQ(21);
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+ ath79_nfc_resources[1].end = ATH79_MISC_IRQ(21);
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+ ath79_nfc_resources[1].flags = IORESOURCE_IRQ;
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+
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+ ath79_nfc_data.hw_reset = ar934x_nfc_hw_reset;
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+
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+ platform_device_register(&ath79_nfc_device);
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+}
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+
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+void __init ath79_nfc_set_select_chip(void (*f)(int chip_no))
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+{
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+ ath79_nfc_data.select_chip = f;
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+}
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+
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+void __init ath79_nfc_set_scan_fixup(int (*f)(struct mtd_info *mtd))
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+{
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+ ath79_nfc_data.scan_fixup = f;
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+}
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+
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+void __init ath79_nfc_set_parts(struct mtd_partition *parts, int nr_parts)
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+{
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+ ath79_nfc_data.parts = parts;
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+ ath79_nfc_data.nr_parts = nr_parts;
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+}
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+
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+void __init ath79_register_nfc(void)
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+{
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+ if (soc_is_ar934x())
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+ ar934x_nfc_setup();
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+ else
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+ BUG();
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+}
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Gabor Juhos