2 * Atheros AR934X SoCs built-in NAND flash controller support
4 * Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
11 #include <linux/kernel.h>
12 #include <linux/delay.h>
13 #include <linux/init.h>
14 #include <linux/irq.h>
15 #include <linux/dma-mapping.h>
16 #include <linux/etherdevice.h>
17 #include <linux/platform_device.h>
18 #include <linux/platform/ar934x_nfc.h>
20 #include <asm/mach-ath79/ath79.h>
21 #include <asm/mach-ath79/ar71xx_regs.h>
25 static struct resource ath79_nfc_resources[2];
26 static u64 ar934x_nfc_dmamask = DMA_BIT_MASK(32);
27 static struct ar934x_nfc_platform_data ath79_nfc_data;
29 static struct platform_device ath79_nfc_device = {
30 .name = AR934X_NFC_DRIVER_NAME,
32 .resource = ath79_nfc_resources,
33 .num_resources = ARRAY_SIZE(ath79_nfc_resources),
35 .dma_mask = &ar934x_nfc_dmamask,
36 .coherent_dma_mask = DMA_BIT_MASK(32),
37 .platform_data = &ath79_nfc_data,
41 static void __init ath79_nfc_init_resource(struct resource res[2],
46 memset(res, 0, sizeof(struct resource) * 2);
48 res[0].flags = IORESOURCE_MEM;
50 res[0].end = base + size - 1;
52 res[1].flags = IORESOURCE_IRQ;
57 static void ar934x_nfc_hw_reset(bool active)
60 ath79_device_reset_set(AR934X_RESET_NANDF);
63 ath79_device_reset_set(AR934X_RESET_ETH_SWITCH_ANALOG);
66 ath79_device_reset_clear(AR934X_RESET_ETH_SWITCH_ANALOG);
69 ath79_device_reset_clear(AR934X_RESET_NANDF);
74 static void ar934x_nfc_setup(void)
76 ath79_nfc_data.hw_reset = ar934x_nfc_hw_reset;
78 ath79_nfc_init_resource(ath79_nfc_resources,
79 AR934X_NFC_BASE, AR934X_NFC_SIZE,
82 platform_device_register(&ath79_nfc_device);
85 static void qca955x_nfc_hw_reset(bool active)
88 ath79_device_reset_set(QCA955X_RESET_NANDF);
91 ath79_device_reset_clear(QCA955X_RESET_NANDF);
96 static void qca955x_nfc_setup(void)
98 ath79_nfc_data.hw_reset = qca955x_nfc_hw_reset;
100 ath79_nfc_init_resource(ath79_nfc_resources,
101 QCA955X_NFC_BASE, QCA955X_NFC_SIZE,
104 platform_device_register(&ath79_nfc_device);
107 void __init ath79_nfc_set_select_chip(void (*f)(int chip_no))
109 ath79_nfc_data.select_chip = f;
112 void __init ath79_nfc_set_scan_fixup(int (*f)(struct mtd_info *mtd))
114 ath79_nfc_data.scan_fixup = f;
117 void __init ath79_nfc_set_swap_dma(bool enable)
119 ath79_nfc_data.swap_dma = enable;
122 void __init ath79_nfc_set_ecc_mode(enum ar934x_nfc_ecc_mode mode)
124 ath79_nfc_data.ecc_mode = mode;
127 void __init ath79_nfc_set_parts(struct mtd_partition *parts, int nr_parts)
129 ath79_nfc_data.parts = parts;
130 ath79_nfc_data.nr_parts = nr_parts;
133 void __init ath79_register_nfc(void)
137 else if (soc_is_qca955x())