[PATCH] [ARM] ep93xx: add hooks to ts7xxx NAND driver
Alexander Clouter
alex at digriz.org.uk
Sat Feb 7 07:38:43 EST 2009
Signed-off-by: Alexander Clouter <alex at digriz.org.uk>
---
arch/arm/mach-ep93xx/include/mach/ts72xx.h | 8 ++
arch/arm/mach-ep93xx/ts72xx.c | 129 +++++++++++++++++++++++++++-
2 files changed, 136 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-ep93xx/include/mach/ts72xx.h b/arch/arm/mach-ep93xx/include/mach/ts72xx.h
index 34ddec0..2244389 100644
--- a/arch/arm/mach-ep93xx/include/mach/ts72xx.h
+++ b/arch/arm/mach-ep93xx/include/mach/ts72xx.h
@@ -44,6 +44,7 @@
#define TS72XX_NOR_PHYS_BASE 0x60000000
#define TS72XX_NOR2_PHYS_BASE 0x62000000
+/* MTD_NAND_TS7250 defines */
#define TS72XX_NAND1_DATA_PHYS_BASE 0x60000000
#define TS72XX_NAND2_DATA_PHYS_BASE 0x70000000
#define TS72XX_NAND_DATA_VIRT_BASE 0xfebfc000
@@ -59,6 +60,13 @@
#define TS72XX_NAND_BUSY_VIRT_BASE 0xfebfa000
#define TS72XX_NAND_BUSY_SIZE 0x00001000
+/* MTD_NAND_TS7XXX defines */
+#define TS72XX_NAND_DATA_PHYS_BASE 0x60000000
+#define TS72XX_NAND_CONTROL_PHYS_BASE 0x60400000
+#define TS72XX_NAND_BUSY_PHYS_BASE 0x60800000
+#define TS72XX_NAND_IO_SIZE 4
+#define TS72XX_NAND1_NAND2_DIFF 0x10000000
+
#define TS72XX_RTC_INDEX_VIRT_BASE 0xfebf9000
#define TS72XX_RTC_INDEX_PHYS_BASE 0x10800000
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index 7ee024d..4c3ba22 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -19,6 +19,9 @@
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/m48t86.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand-ts7xxx.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <mach/hardware.h>
@@ -55,6 +58,7 @@ static struct map_desc ts72xx_io_desc[] __initdata = {
}
};
+#ifdef CONFIG_MTD_NAND_TS7250
static struct map_desc ts72xx_nand_io_desc[] __initdata = {
{
.virtual = TS72XX_NAND_DATA_VIRT_BASE,
@@ -92,6 +96,7 @@ static struct map_desc ts72xx_alternate_nand_io_desc[] __initdata = {
.type = MT_DEVICE,
}
};
+#endif
static void __init ts72xx_map_io(void)
{
@@ -101,6 +106,7 @@ static void __init ts72xx_map_io(void)
/*
* The TS-7200 has NOR flash, the other models have NAND flash.
*/
+#ifdef CONFIG_MTD_NAND_TS7250
if (!board_is_ts7200()) {
if (is_ts9420_installed()) {
iotable_init(ts72xx_alternate_nand_io_desc,
@@ -110,8 +116,125 @@ static void __init ts72xx_map_io(void)
ARRAY_SIZE(ts72xx_nand_io_desc));
}
}
+#endif
}
+#ifdef CONFIG_MTD_NAND_TS7XXX
+static struct mtd_partition ts72xx_nand_parts32[] = {
+ {
+ .name = "TS-BOOTROM",
+ .offset = 0,
+ .size = SZ_128K,
+ .mask_flags = MTD_WRITEABLE,
+ }, {
+ .name = "Linux",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 29 * SZ_1M,
+ }, {
+ .name = "RedBoot",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ }
+};
+
+static struct mtd_partition ts72xx_nand_parts128[] = {
+ {
+ .name = "TS-BOOTROM",
+ .offset = 0,
+ .size = SZ_128K,
+ .mask_flags = MTD_WRITEABLE,
+ }, {
+ .name = "Linux",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 125 * SZ_1M,
+ }, {
+ .name = "RedBoot",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ }
+};
+
+static struct ts7xxx_nand_data ts72xx_nand_data = {
+ .partitions = NULL,
+ .nr_partitions = 0,
+
+ .ioports = {
+ .ctrl = {
+ .res = 0,
+ .offset = 0,
+ },
+ .data = {
+ .res = 1,
+ .offset = 0,
+ },
+
+ .busy = {
+ .res = 2,
+ .offset = 0,
+ },
+ },
+};
+
+static struct resource ts72xx_nand_flash_resource[] = {
+ {
+ .flags = IORESOURCE_MEM,
+ .start = TS72XX_NAND_DATA_PHYS_BASE,
+ .end = TS72XX_NAND_DATA_PHYS_BASE
+ + TS72XX_NAND_IO_SIZE - 1,
+ }, {
+ .flags = IORESOURCE_MEM,
+ .start = TS72XX_NAND_DATA_PHYS_BASE,
+ .end = TS72XX_NAND_DATA_PHYS_BASE
+ + TS72XX_NAND_IO_SIZE - 1,
+ }, {
+ .flags = IORESOURCE_MEM,
+ .start = TS72XX_NAND_BUSY_PHYS_BASE,
+ .end = TS72XX_NAND_BUSY_PHYS_BASE
+ + TS72XX_NAND_IO_SIZE - 1,
+ },
+};
+
+static struct ts7xxx_nand_data *ts72xx_nand(unsigned int size)
+{
+ unsigned int i;
+
+ /*
+ * The TS-72[56]0's come with either 32MiB or 128MiB of NAND
+ */
+ if (size == 32 * SZ_1M) {
+ ts72xx_nand_data.partitions = ts72xx_nand_parts32;
+ ts72xx_nand_data.nr_partitions
+ = ARRAY_SIZE(ts72xx_nand_parts32);
+ } else if (size == 128 * SZ_1M) {
+ ts72xx_nand_data.partitions = ts72xx_nand_parts128;
+ ts72xx_nand_data.nr_partitions
+ = ARRAY_SIZE(ts72xx_nand_parts128);
+ }
+
+ /* we only munch this on the init (when size is zero) */
+ if (size == 0 && is_ts9420_installed()) {
+ for (i = 0; i < ARRAY_SIZE(ts72xx_nand_flash_resource); i++) {
+ ts72xx_nand_flash_resource[i].start
+ += TS72XX_NAND1_NAND2_DIFF;
+ ts72xx_nand_flash_resource[i].end
+ += TS72XX_NAND1_NAND2_DIFF;
+ }
+ }
+
+ return &ts72xx_nand_data;
+};
+
+static struct platform_device ts72xx_nand_flash = {
+ .name = "ts7xxx_nand",
+ .id = -1,
+ .dev = {
+ .platform_data = &ts72xx_nand,
+ },
+ .num_resources = ARRAY_SIZE(ts72xx_nand_flash_resource),
+ .resource = ts72xx_nand_flash_resource,
+};
+#endif
+
static struct physmap_flash_data ts72xx_flash_data = {
.width = 1,
};
@@ -165,8 +288,12 @@ static struct ep93xx_eth_data ts72xx_eth_data = {
static void __init ts72xx_init_machine(void)
{
ep93xx_init_devices();
- if (board_is_ts7200())
+ if (board_is_ts7200()) {
platform_device_register(&ts72xx_flash);
+#ifdef CONFIG_MTD_NAND_TS7XXX
+ platform_device_register(&ts72xx_nand_flash);
+#endif
+ }
platform_device_register(&ts72xx_rtc_device);
ep93xx_register_eth(&ts72xx_eth_data, 1);
--
1.5.6.5
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