ARM: platform data to use the FSMC NAND with the U300

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=93ac5a552c831096003f9bc74471300dc1710a42
Commit:     93ac5a552c831096003f9bc74471300dc1710a42
Parent:     6c009ab89a212b4364cdb74192d438f542fb291c
Author:     Linus Walleij <linus.walleij at stericsson.com>
AuthorDate: Mon Sep 13 00:35:37 2010 +0200
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Mon Oct 25 00:35:46 2010 +0100

    ARM: platform data to use the FSMC NAND with the U300
    
    Just as it says, if this is merged along with the other patch, the
    driver supports the U300 NAND flash interface.
    
    Signed-off-by: Linus Walleij <linus.walleij at stericsson.com>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
 arch/arm/mach-u300/clock.c                  |    6 ++--
 arch/arm/mach-u300/core.c                   |   47 ++++++++++++++++++++++++---
 arch/arm/mach-u300/include/mach/u300-regs.h |    2 -
 3 files changed, 45 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-u300/clock.c b/arch/arm/mach-u300/clock.c
index 60acf9e..7458fc6 100644
--- a/arch/arm/mach-u300/clock.c
+++ b/arch/arm/mach-u300/clock.c
@@ -66,7 +66,7 @@ static DEFINE_SPINLOCK(syscon_resetreg_lock);
  *  AMBA bus
  *  |
  *  +- CPU
- *  +- NANDIF NAND Flash interface
+ *  +- FSMC NANDIF NAND Flash interface
  *  +- SEMI Shared Memory interface
  *  +- ISP Image Signal Processor (U335 only)
  *  +- CDS (U335 only)
@@ -726,7 +726,7 @@ static struct clk cpu_clk = {
 };
 
 static struct clk nandif_clk = {
-	.name       = "NANDIF",
+	.name       = "FSMC",
 	.parent	    = &amba_clk,
 	.hw_ctrld   = false,
 	.reset	    = true,
@@ -1259,7 +1259,7 @@ static struct clk_lookup lookups[] = {
 	/* Connected directly to the AMBA bus */
 	DEF_LOOKUP("amba",      &amba_clk),
 	DEF_LOOKUP("cpu",       &cpu_clk),
-	DEF_LOOKUP("fsmc",      &nandif_clk),
+	DEF_LOOKUP("fsmc-nand", &nandif_clk),
 	DEF_LOOKUP("semi",      &semi_clk),
 #ifdef CONFIG_MACH_U300_BS335
 	DEF_LOOKUP("isp",       &isp_clk),
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index ea41c23..aa53ee2 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -21,7 +21,8 @@
 #include <linux/gpio.h>
 #include <linux/clk.h>
 #include <linux/err.h>
-#include <mach/coh901318.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/fsmc.h>
 
 #include <asm/types.h>
 #include <asm/setup.h>
@@ -30,6 +31,7 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
+#include <mach/coh901318.h>
 #include <mach/hardware.h>
 #include <mach/syscon.h>
 #include <mach/dma_channels.h>
@@ -285,6 +287,13 @@ static struct resource rtc_resources[] = {
  */
 static struct resource fsmc_resources[] = {
 	{
+		.name  = "nand_data",
+		.start = U300_NAND_CS0_PHYS_BASE,
+		.end   = U300_NAND_CS0_PHYS_BASE + SZ_16K - 1,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.name  = "fsmc_regs",
 		.start = U300_NAND_IF_PHYS_BASE,
 		.end   = U300_NAND_IF_PHYS_BASE + SZ_4K - 1,
 		.flags = IORESOURCE_MEM,
@@ -1429,11 +1438,39 @@ static struct platform_device rtc_device = {
 	.resource = rtc_resources,
 };
 
-static struct platform_device fsmc_device = {
-	.name = "nandif",
+static struct mtd_partition u300_partitions[] = {
+	{
+		.name = "bootrecords",
+		.offset = 0,
+		.size = SZ_128K,
+	},
+	{
+		.name = "free",
+		.offset = SZ_128K,
+		.size = 8064 * SZ_1K,
+	},
+	{
+		.name = "platform",
+		.offset = 8192 * SZ_1K,
+		.size = 253952 * SZ_1K,
+	},
+};
+
+static struct fsmc_nand_platform_data nand_platform_data = {
+	.partitions = u300_partitions,
+	.nr_partitions = ARRAY_SIZE(u300_partitions),
+	.options = NAND_SKIP_BBTSCAN,
+	.width = FSMC_NAND_BW8,
+};
+
+static struct platform_device nand_device = {
+	.name = "fsmc-nand",
 	.id = -1,
-	.num_resources = ARRAY_SIZE(fsmc_resources),
 	.resource = fsmc_resources,
+	.num_resources = ARRAY_SIZE(fsmc_resources),
+	.dev = {
+		.platform_data = &nand_platform_data,
+	},
 };
 
 static struct platform_device ave_device = {
@@ -1465,7 +1502,7 @@ static struct platform_device *platform_devs[] __initdata = {
 	&keypad_device,
 	&rtc_device,
 	&gpio_device,
-	&fsmc_device,
+	&nand_device,
 	&wdog_device,
 	&ave_device
 };
diff --git a/arch/arm/mach-u300/include/mach/u300-regs.h b/arch/arm/mach-u300/include/mach/u300-regs.h
index 56721a0..8b85df4 100644
--- a/arch/arm/mach-u300/include/mach/u300-regs.h
+++ b/arch/arm/mach-u300/include/mach/u300-regs.h
@@ -20,11 +20,9 @@
 
 /* NAND Flash CS0 */
 #define U300_NAND_CS0_PHYS_BASE		0x80000000
-#define U300_NAND_CS0_VIRT_BASE		0xff040000
 
 /* NFIF */
 #define U300_NAND_IF_PHYS_BASE		0x9f800000
-#define U300_NAND_IF_VIRT_BASE		0xff030000
 
 /* AHB Peripherals */
 #define U300_AHB_PER_PHYS_BASE		0xa0000000