[PATCH v3 06/18] ARM: clps711x: cdb89712: Special driver for handling memory is removed
Alexander Shiyan
shc_work at mail.ru
Sat Nov 17 08:57:12 EST 2012
This patch provide migration to using "physmap-flash" and "mtd-ram"
drivers instead of using special driver for handling memory.
Signed-off-by: Alexander Shiyan <shc_work at mail.ru>
---
arch/arm/mach-clps711x/cdb89712.c | 84 +++++++
arch/arm/mach-clps711x/include/mach/hardware.h | 3 +
drivers/mtd/maps/Kconfig | 7 -
drivers/mtd/maps/Makefile | 1 -
drivers/mtd/maps/cdb89712.c | 278 ------------------------
5 files changed, 87 insertions(+), 286 deletions(-)
delete mode 100644 drivers/mtd/maps/cdb89712.c
diff --git a/arch/arm/mach-clps711x/cdb89712.c b/arch/arm/mach-clps711x/cdb89712.c
index 235e625..24f573b 100644
--- a/arch/arm/mach-clps711x/cdb89712.c
+++ b/arch/arm/mach-clps711x/cdb89712.c
@@ -26,6 +26,10 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/plat-ram.h>
+#include <linux/mtd/partitions.h>
+
#include <mach/hardware.h>
#include <asm/pgtable.h>
#include <asm/page.h>
@@ -44,8 +48,88 @@ static struct resource cdb89712_cs8900_resource[] __initdata = {
DEFINE_RES_IRQ(CDB89712_CS8900_IRQ),
};
+static struct mtd_partition cdb89712_flash_partitions[] __initdata = {
+ {
+ .name = "Flash",
+ .offset = 0,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+static struct physmap_flash_data cdb89712_flash_pdata __initdata = {
+ .width = 4,
+ .probe_type = "map_rom",
+ .parts = cdb89712_flash_partitions,
+ .nr_parts = ARRAY_SIZE(cdb89712_flash_partitions),
+};
+
+static struct resource cdb89712_flash_resources[] __initdata = {
+ DEFINE_RES_MEM(CS0_PHYS_BASE, SZ_8M),
+};
+
+static struct platform_device cdb89712_flash_pdev __initdata = {
+ .name = "physmap-flash",
+ .id = 0,
+ .resource = cdb89712_flash_resources,
+ .num_resources = ARRAY_SIZE(cdb89712_flash_resources),
+ .dev = {
+ .platform_data = &cdb89712_flash_pdata,
+ },
+};
+
+static struct mtd_partition cdb89712_bootrom_partitions[] __initdata = {
+ {
+ .name = "BootROM",
+ .offset = 0,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+static struct physmap_flash_data cdb89712_bootrom_pdata __initdata = {
+ .width = 4,
+ .probe_type = "map_rom",
+ .parts = cdb89712_bootrom_partitions,
+ .nr_parts = ARRAY_SIZE(cdb89712_bootrom_partitions),
+};
+
+static struct resource cdb89712_bootrom_resources[] __initdata = {
+ DEFINE_RES_NAMED(CS7_PHYS_BASE, SZ_128, "BOOTROM", IORESOURCE_MEM |
+ IORESOURCE_CACHEABLE | IORESOURCE_READONLY),
+};
+
+static struct platform_device cdb89712_bootrom_pdev __initdata = {
+ .name = "physmap-flash",
+ .id = 1,
+ .resource = cdb89712_bootrom_resources,
+ .num_resources = ARRAY_SIZE(cdb89712_bootrom_resources),
+ .dev = {
+ .platform_data = &cdb89712_bootrom_pdata,
+ },
+};
+
+static struct platdata_mtd_ram cdb89712_sram_pdata __initdata = {
+ .bankwidth = 4,
+};
+
+static struct resource cdb89712_sram_resources[] __initdata = {
+ DEFINE_RES_MEM(CLPS711X_SRAM_BASE, CLPS711X_SRAM_SIZE),
+};
+
+static struct platform_device cdb89712_sram_pdev __initdata = {
+ .name = "mtd-ram",
+ .id = 0,
+ .resource = cdb89712_sram_resources,
+ .num_resources = ARRAY_SIZE(cdb89712_sram_resources),
+ .dev = {
+ .platform_data = &cdb89712_sram_pdata,
+ },
+};
+
static void __init cdb89712_init(void)
{
+ platform_device_register(&cdb89712_flash_pdev);
+ platform_device_register(&cdb89712_bootrom_pdev);
+ platform_device_register(&cdb89712_sram_pdev);
platform_device_register_simple("cs89x0", 0, cdb89712_cs8900_resource,
ARRAY_SIZE(cdb89712_cs8900_resource));
}
diff --git a/arch/arm/mach-clps711x/include/mach/hardware.h b/arch/arm/mach-clps711x/include/mach/hardware.h
index bd919e7..5a278cb 100644
--- a/arch/arm/mach-clps711x/include/mach/hardware.h
+++ b/arch/arm/mach-clps711x/include/mach/hardware.h
@@ -64,6 +64,9 @@
#define CS7_PHYS_BASE (0x00000000)
#endif
+#define CLPS711X_SRAM_BASE CS6_PHYS_BASE
+#define CLPS711X_SRAM_SIZE (48 * 1024)
+
#if defined (CONFIG_ARCH_EDB7211)
/* The extra 8 lines of the keyboard matrix are wired to chip select 3 */
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 2e47c2e..df30486 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -324,13 +324,6 @@ config MTD_SOLUTIONENGINE
This enables access to the flash chips on the Hitachi SolutionEngine and
similar boards. Say 'Y' if you are building a kernel for such a board.
-config MTD_CDB89712
- tristate "Cirrus CDB89712 evaluation board mappings"
- depends on MTD_CFI && ARCH_CDB89712
- help
- This enables access to the flash or ROM chips on the CDB89712 board.
- If you have such a board, say 'Y'.
-
config MTD_SA1100
tristate "CFI Flash device mapped on StrongARM SA11x0"
depends on MTD_CFI && ARCH_SA1100
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index deb43e9..a0240ed 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -7,7 +7,6 @@ obj-$(CONFIG_MTD) += map_funcs.o
endif
# Chip mappings
-obj-$(CONFIG_MTD_CDB89712) += cdb89712.o
obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o
obj-$(CONFIG_MTD_DC21285) += dc21285.o
obj-$(CONFIG_MTD_DILNETPC) += dilnetpc.o
diff --git a/drivers/mtd/maps/cdb89712.c b/drivers/mtd/maps/cdb89712.c
deleted file mode 100644
index c29cbf8..0000000
--- a/drivers/mtd/maps/cdb89712.c
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
- * Flash on Cirrus CDB89712
- *
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <mach/hardware.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-/* dynamic ioremap() areas */
-#define FLASH_START 0x00000000
-#define FLASH_SIZE 0x800000
-#define FLASH_WIDTH 4
-
-#define SRAM_START 0x60000000
-#define SRAM_SIZE 0xc000
-#define SRAM_WIDTH 4
-
-#define BOOTROM_START 0x70000000
-#define BOOTROM_SIZE 0x80
-#define BOOTROM_WIDTH 4
-
-
-static struct mtd_info *flash_mtd;
-
-struct map_info cdb89712_flash_map = {
- .name = "flash",
- .size = FLASH_SIZE,
- .bankwidth = FLASH_WIDTH,
- .phys = FLASH_START,
-};
-
-struct resource cdb89712_flash_resource = {
- .name = "Flash",
- .start = FLASH_START,
- .end = FLASH_START + FLASH_SIZE - 1,
- .flags = IORESOURCE_IO | IORESOURCE_BUSY,
-};
-
-static int __init init_cdb89712_flash (void)
-{
- int err;
-
- if (request_resource (&ioport_resource, &cdb89712_flash_resource)) {
- printk(KERN_NOTICE "Failed to reserve Cdb89712 FLASH space\n");
- err = -EBUSY;
- goto out;
- }
-
- cdb89712_flash_map.virt = ioremap(FLASH_START, FLASH_SIZE);
- if (!cdb89712_flash_map.virt) {
- printk(KERN_NOTICE "Failed to ioremap Cdb89712 FLASH space\n");
- err = -EIO;
- goto out_resource;
- }
- simple_map_init(&cdb89712_flash_map);
- flash_mtd = do_map_probe("cfi_probe", &cdb89712_flash_map);
- if (!flash_mtd) {
- flash_mtd = do_map_probe("map_rom", &cdb89712_flash_map);
- if (flash_mtd)
- flash_mtd->erasesize = 0x10000;
- }
- if (!flash_mtd) {
- printk("FLASH probe failed\n");
- err = -ENXIO;
- goto out_ioremap;
- }
-
- flash_mtd->owner = THIS_MODULE;
-
- if (mtd_device_register(flash_mtd, NULL, 0)) {
- printk("FLASH device addition failed\n");
- err = -ENOMEM;
- goto out_probe;
- }
-
- return 0;
-
-out_probe:
- map_destroy(flash_mtd);
- flash_mtd = 0;
-out_ioremap:
- iounmap((void *)cdb89712_flash_map.virt);
-out_resource:
- release_resource (&cdb89712_flash_resource);
-out:
- return err;
-}
-
-
-
-
-
-static struct mtd_info *sram_mtd;
-
-struct map_info cdb89712_sram_map = {
- .name = "SRAM",
- .size = SRAM_SIZE,
- .bankwidth = SRAM_WIDTH,
- .phys = SRAM_START,
-};
-
-struct resource cdb89712_sram_resource = {
- .name = "SRAM",
- .start = SRAM_START,
- .end = SRAM_START + SRAM_SIZE - 1,
- .flags = IORESOURCE_IO | IORESOURCE_BUSY,
-};
-
-static int __init init_cdb89712_sram (void)
-{
- int err;
-
- if (request_resource (&ioport_resource, &cdb89712_sram_resource)) {
- printk(KERN_NOTICE "Failed to reserve Cdb89712 SRAM space\n");
- err = -EBUSY;
- goto out;
- }
-
- cdb89712_sram_map.virt = ioremap(SRAM_START, SRAM_SIZE);
- if (!cdb89712_sram_map.virt) {
- printk(KERN_NOTICE "Failed to ioremap Cdb89712 SRAM space\n");
- err = -EIO;
- goto out_resource;
- }
- simple_map_init(&cdb89712_sram_map);
- sram_mtd = do_map_probe("map_ram", &cdb89712_sram_map);
- if (!sram_mtd) {
- printk("SRAM probe failed\n");
- err = -ENXIO;
- goto out_ioremap;
- }
-
- sram_mtd->owner = THIS_MODULE;
- sram_mtd->erasesize = 16;
-
- if (mtd_device_register(sram_mtd, NULL, 0)) {
- printk("SRAM device addition failed\n");
- err = -ENOMEM;
- goto out_probe;
- }
-
- return 0;
-
-out_probe:
- map_destroy(sram_mtd);
- sram_mtd = 0;
-out_ioremap:
- iounmap((void *)cdb89712_sram_map.virt);
-out_resource:
- release_resource (&cdb89712_sram_resource);
-out:
- return err;
-}
-
-
-
-
-
-
-
-static struct mtd_info *bootrom_mtd;
-
-struct map_info cdb89712_bootrom_map = {
- .name = "BootROM",
- .size = BOOTROM_SIZE,
- .bankwidth = BOOTROM_WIDTH,
- .phys = BOOTROM_START,
-};
-
-struct resource cdb89712_bootrom_resource = {
- .name = "BootROM",
- .start = BOOTROM_START,
- .end = BOOTROM_START + BOOTROM_SIZE - 1,
- .flags = IORESOURCE_IO | IORESOURCE_BUSY,
-};
-
-static int __init init_cdb89712_bootrom (void)
-{
- int err;
-
- if (request_resource (&ioport_resource, &cdb89712_bootrom_resource)) {
- printk(KERN_NOTICE "Failed to reserve Cdb89712 BOOTROM space\n");
- err = -EBUSY;
- goto out;
- }
-
- cdb89712_bootrom_map.virt = ioremap(BOOTROM_START, BOOTROM_SIZE);
- if (!cdb89712_bootrom_map.virt) {
- printk(KERN_NOTICE "Failed to ioremap Cdb89712 BootROM space\n");
- err = -EIO;
- goto out_resource;
- }
- simple_map_init(&cdb89712_bootrom_map);
- bootrom_mtd = do_map_probe("map_rom", &cdb89712_bootrom_map);
- if (!bootrom_mtd) {
- printk("BootROM probe failed\n");
- err = -ENXIO;
- goto out_ioremap;
- }
-
- bootrom_mtd->owner = THIS_MODULE;
- bootrom_mtd->erasesize = 0x10000;
-
- if (mtd_device_register(bootrom_mtd, NULL, 0)) {
- printk("BootROM device addition failed\n");
- err = -ENOMEM;
- goto out_probe;
- }
-
- return 0;
-
-out_probe:
- map_destroy(bootrom_mtd);
- bootrom_mtd = 0;
-out_ioremap:
- iounmap((void *)cdb89712_bootrom_map.virt);
-out_resource:
- release_resource (&cdb89712_bootrom_resource);
-out:
- return err;
-}
-
-
-
-
-
-static int __init init_cdb89712_maps(void)
-{
-
- printk(KERN_INFO "Cirrus CDB89712 MTD mappings:\n Flash 0x%x at 0x%x\n SRAM 0x%x at 0x%x\n BootROM 0x%x at 0x%x\n",
- FLASH_SIZE, FLASH_START, SRAM_SIZE, SRAM_START, BOOTROM_SIZE, BOOTROM_START);
-
- init_cdb89712_flash();
- init_cdb89712_sram();
- init_cdb89712_bootrom();
-
- return 0;
-}
-
-
-static void __exit cleanup_cdb89712_maps(void)
-{
- if (sram_mtd) {
- mtd_device_unregister(sram_mtd);
- map_destroy(sram_mtd);
- iounmap((void *)cdb89712_sram_map.virt);
- release_resource (&cdb89712_sram_resource);
- }
-
- if (flash_mtd) {
- mtd_device_unregister(flash_mtd);
- map_destroy(flash_mtd);
- iounmap((void *)cdb89712_flash_map.virt);
- release_resource (&cdb89712_flash_resource);
- }
-
- if (bootrom_mtd) {
- mtd_device_unregister(bootrom_mtd);
- map_destroy(bootrom_mtd);
- iounmap((void *)cdb89712_bootrom_map.virt);
- release_resource (&cdb89712_bootrom_resource);
- }
-}
-
-module_init(init_cdb89712_maps);
-module_exit(cleanup_cdb89712_maps);
-
-MODULE_AUTHOR("Ray L");
-MODULE_DESCRIPTION("ARM CDB89712 map driver");
-MODULE_LICENSE("GPL");
--
1.7.8.6
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