From 64307f7db3690140a16c6748e65068f8a279877c Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 29 Oct 2007 16:55:18 +0800
Subject: [PATCH] Blackfin arch: add NFC driver support in BF527-EZKIT board

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/mach-bf527/boards/ezkit.c   | 53 +++++++++++++++++++++++
 include/asm-blackfin/mach-bf527/dma.h     |  7 ++-
 include/asm-blackfin/mach-bf548/portmux.h | 14 ++++++
 3 files changed, 73 insertions(+), 1 deletion(-)

diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 3e884f3a81..bf1bedcc88 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -41,9 +41,11 @@
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/usb_sl811.h>
+#include <asm/cplb.h>
 #include <asm/dma.h>
 #include <asm/bfin5xx_spi.h>
 #include <asm/reboot.h>
+#include <asm/nand.h>
 #include <linux/spi/ad7877.h>
 
 /*
@@ -102,6 +104,53 @@ void __exit bfin_isp1761_exit(void)
 arch_initcall(bfin_isp1761_init);
 #endif
 
+#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+static struct mtd_partition partition_info[] = {
+	{
+		.name = "Linux Kernel",
+		.offset = 0,
+		.size = 4 * SIZE_1M,
+	},
+	{
+		.name = "File System",
+		.offset = 4 * SIZE_1M,
+		.size = (256 - 4) * SIZE_1M,
+	},
+};
+
+static struct bf5xx_nand_platform bf5xx_nand_platform = {
+	.page_size = NFC_PG_SIZE_256,
+	.data_width = NFC_NWIDTH_8,
+	.partitions = partition_info,
+	.nr_partitions = ARRAY_SIZE(partition_info),
+	.rd_dly = 3,
+	.wr_dly = 3,
+};
+
+static struct resource bf5xx_nand_resources[] = {
+	{
+		.start = NFC_CTL,
+		.end = NFC_DATA_RD + 2,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = CH_NFC,
+		.end = CH_NFC,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bf5xx_nand_device = {
+	.name = "bf5xx-nand",
+	.id = 0,
+	.num_resources = ARRAY_SIZE(bf5xx_nand_resources),
+	.resource = bf5xx_nand_resources,
+	.dev = {
+		.platform_data = &bf5xx_nand_platform,
+	},
+};
+#endif
+
 #if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
 static struct resource bfin_pcmcia_cf_resources[] = {
 	{
@@ -650,6 +699,10 @@ static struct platform_device bfin_pata_device = {
 #endif
 
 static struct platform_device *stamp_devices[] __initdata = {
+#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
+	&bf5xx_nand_device,
+#endif
+
 #if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
 	&bfin_pcmcia_cf_device,
 #endif
diff --git a/include/asm-blackfin/mach-bf527/dma.h b/include/asm-blackfin/mach-bf527/dma.h
index a41627ae91..2dfee12864 100644
--- a/include/asm-blackfin/mach-bf527/dma.h
+++ b/include/asm-blackfin/mach-bf527/dma.h
@@ -35,7 +35,6 @@
 #define MAX_BLACKFIN_DMA_CHANNEL 16
 
 #define CH_PPI 			0	/* PPI receive/transmit or NFC */
-#define CH_NFC			0	/* PPI receive/transmit or NFC */
 #define CH_EMAC_RX 		1	/* Ethernet MAC receive or HOSTDP */
 #define CH_EMAC_HOSTDP 		1	/* Ethernet MAC receive or HOSTDP */
 #define CH_EMAC_TX 		2	/* Ethernet MAC transmit or NFC */
@@ -54,6 +53,12 @@
 #define CH_MEM_STREAM1_DEST	14	/* TX */
 #define CH_MEM_STREAM1_SRC 	15	/* RX */
 
+#if defined(CONFIG_BF527_NAND_D_PORTF)
+#define CH_NFC			CH_PPI	/* PPI receive/transmit or NFC */
+#elif defined(CONFIG_BF527_NAND_D_PORTH)
+#define CH_NFC			CH_EMAC_TX /* PPI receive/transmit or NFC */
+#endif
+
 extern int channel2irq(unsigned int channel);
 extern struct dma_register *base_addr[];
 
diff --git a/include/asm-blackfin/mach-bf548/portmux.h b/include/asm-blackfin/mach-bf548/portmux.h
index b382deb501..6b48512001 100644
--- a/include/asm-blackfin/mach-bf548/portmux.h
+++ b/include/asm-blackfin/mach-bf548/portmux.h
@@ -267,4 +267,18 @@
 #define P_AMC_BG	(P_DEFINED | P_IDENT(GPIO_PJ12) | P_FUNCT(0))
 #define P_AMC_BGH	(P_DEFINED | P_IDENT(GPIO_PJ13) | P_FUNCT(0))
 
+
+#define P_NAND_D0	(P_DONTCARE)
+#define P_NAND_D1	(P_DONTCARE)
+#define P_NAND_D2	(P_DONTCARE)
+#define P_NAND_D3	(P_DONTCARE)
+#define P_NAND_D4	(P_DONTCARE)
+#define P_NAND_D5	(P_DONTCARE)
+#define P_NAND_D6	(P_DONTCARE)
+#define P_NAND_D7	(P_DONTCARE)
+#define P_NAND_WE	(P_DONTCARE)
+#define P_NAND_RE	(P_DONTCARE)
+#define P_NAND_CLE	(P_DONTCARE)
+#define P_NAND_ALE	(P_DONTCARE)
+
 #endif /* _MACH_PORTMUX_H_ */
-- 
2.39.5