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authorLinus Walleij <linus.walleij@stericsson.com>2010-09-13 00:35:37 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-10-25 00:35:46 +0100
commit93ac5a552c831096003f9bc74471300dc1710a42 (patch)
tree91f79071e37e84adbd6d0e9b66d6a53292c0dd47 /arch/arm
parentmtd: generic FSMC NAND MTD driver (diff)
downloadlinux-dev-93ac5a552c831096003f9bc74471300dc1710a42.tar.xz
linux-dev-93ac5a552c831096003f9bc74471300dc1710a42.zip
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@stericsson.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-u300/clock.c6
-rw-r--r--arch/arm/mach-u300/core.c47
-rw-r--r--arch/arm/mach-u300/include/mach/u300-regs.h2
3 files changed, 45 insertions, 10 deletions
diff --git a/arch/arm/mach-u300/clock.c b/arch/arm/mach-u300/clock.c
index 60acf9e708ae..7458fc6df5c6 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 ea41c236be0f..aa53ee22438f 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 56721a0cd2af..8b85df4c8d8f 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