[MTD] MAPS: Merge Lubbock and Mainstone drivers into common PXA2xx driver
Linux-MTD Mailing List
linux-mtd at lists.infradead.org
Sun Sep 23 13:59:01 EDT 2007
Gitweb: http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=e644f7d6289456657996df4192de76c5d0a9f9c7
Commit: e644f7d6289456657996df4192de76c5d0a9f9c7
Parent: b38178ee712e8608f20c8e741adf97f75f1aea39
Author: Todd Poynor <tpoynor at mvista.com>
AuthorDate: Mon Nov 7 21:47:48 2005 +0000
Committer: David Woodhouse <dwmw2 at infradead.org>
CommitDate: Sun Sep 23 18:40:14 2007 +0100
[MTD] MAPS: Merge Lubbock and Mainstone drivers into common PXA2xx driver
Replace Lubbock and Mainstone board drivers with common PXA2xx driver,
convert to platform driver (corresponding platform device changes merged
to kernel.org for 2.6.15), add power management callbacks.
Signed-off-by: Todd Poynor <tpoynor at mvista.com>
Signed-off-by: Nicolas Pitre <npitre at mvista.com>
Signed-off-by: David Woodhouse <dwmw2 at infradead.org>
---
drivers/mtd/maps/Kconfig | 16 +--
drivers/mtd/maps/Makefile | 3 +-
drivers/mtd/maps/lubbock-flash.c | 170 ------------------------------
drivers/mtd/maps/mainstone-flash.c | 181 --------------------------------
drivers/mtd/maps/pxa2xx-flash.c | 200 ++++++++++++++++++++++++++++++++++++
5 files changed, 205 insertions(+), 365 deletions(-)
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 1c97163..7559950 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -163,20 +163,12 @@ config MTD_SBC_GXX
More info at
<http://www.arcomcontrols.com/products/icp/pc104/processors/SBC_GX1.htm>.
-config MTD_LUBBOCK
- tristate "CFI Flash device mapped on Intel Lubbock XScale eval board"
- depends on ARCH_LUBBOCK && MTD_CFI_INTELEXT && MTD_PARTITIONS
- help
- This provides a driver for the on-board flash of the Intel
- 'Lubbock' XScale evaluation board.
-
-config MTD_MAINSTONE
- tristate "CFI Flash device mapped on Intel Mainstone XScale eval board"
- depends on MACH_MAINSTONE && MTD_CFI_INTELEXT
+config MTD_PXA2XX
+ tristate "CFI Flash device mapped on Intel XScale PXA2xx based boards"
+ depends on (PXA25x || PXA27x) && MTD_CFI_INTELEXT
select MTD_PARTITIONS
help
- This provides a driver for the on-board flash of the Intel
- 'Mainstone PXA27x evaluation board.
+ This provides a driver for the NOR flash attached to a PXA2xx chip.
config MTD_OCTAGON
tristate "JEDEC Flash device mapped on Octagon 5066 SBC"
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 53fa2b5..1313eee 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -20,8 +20,7 @@ obj-$(CONFIG_MTD_ESB2ROM) += esb2rom.o
obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o
obj-$(CONFIG_MTD_CK804XROM) += ck804xrom.o
obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o
-obj-$(CONFIG_MTD_LUBBOCK) += lubbock-flash.o
-obj-$(CONFIG_MTD_MAINSTONE) += mainstone-flash.o
+obj-$(CONFIG_MTD_PXA2XX) += pxa2xx-flash.o
obj-$(CONFIG_MTD_MBX860) += mbx860.o
obj-$(CONFIG_MTD_CEIVA) += ceiva.o
obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o
diff --git a/drivers/mtd/maps/lubbock-flash.c b/drivers/mtd/maps/lubbock-flash.c
deleted file mode 100644
index 1aa0447..0000000
--- a/drivers/mtd/maps/lubbock-flash.c
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * $Id: lubbock-flash.c,v 1.21 2005/11/07 11:14:27 gleixner Exp $
- *
- * Map driver for the Lubbock developer platform.
- *
- * Author: Nicolas Pitre
- * Copyright: (C) 2001 MontaVista Software Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-
-#include <linux/dma-mapping.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-#include <asm/hardware.h>
-#include <asm/arch/pxa-regs.h>
-#include <asm/arch/lubbock.h>
-
-
-#define ROM_ADDR 0x00000000
-#define FLASH_ADDR 0x04000000
-
-#define WINDOW_SIZE 64*1024*1024
-
-static void lubbock_map_inval_cache(struct map_info *map, unsigned long from, ssize_t len)
-{
- consistent_sync((char *)map->cached + from, len, DMA_FROM_DEVICE);
-}
-
-static struct map_info lubbock_maps[2] = { {
- .size = WINDOW_SIZE,
- .phys = 0x00000000,
- .inval_cache = lubbock_map_inval_cache,
-}, {
- .size = WINDOW_SIZE,
- .phys = 0x04000000,
- .inval_cache = lubbock_map_inval_cache,
-} };
-
-static struct mtd_partition lubbock_partitions[] = {
- {
- .name = "Bootloader",
- .size = 0x00040000,
- .offset = 0,
- .mask_flags = MTD_WRITEABLE /* force read-only */
- },{
- .name = "Kernel",
- .size = 0x00100000,
- .offset = 0x00040000,
- },{
- .name = "Filesystem",
- .size = MTDPART_SIZ_FULL,
- .offset = 0x00140000
- }
-};
-
-static struct mtd_info *mymtds[2];
-static struct mtd_partition *parsed_parts[2];
-static int nr_parsed_parts[2];
-
-static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
-
-static int __init init_lubbock(void)
-{
- int flashboot = (LUB_CONF_SWITCHES & 1);
- int ret = 0, i;
-
- lubbock_maps[0].bankwidth = lubbock_maps[1].bankwidth =
- (BOOT_DEF & 1) ? 2 : 4;
-
- /* Compensate for the nROMBT switch which swaps the flash banks */
- printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
- flashboot?"Flash":"ROM", flashboot);
-
- lubbock_maps[flashboot^1].name = "Lubbock Application Flash";
- lubbock_maps[flashboot].name = "Lubbock Boot ROM";
-
- for (i = 0; i < 2; i++) {
- lubbock_maps[i].virt = ioremap(lubbock_maps[i].phys, WINDOW_SIZE);
- if (!lubbock_maps[i].virt) {
- printk(KERN_WARNING "Failed to ioremap %s\n", lubbock_maps[i].name);
- if (!ret)
- ret = -ENOMEM;
- continue;
- }
- lubbock_maps[i].cached = ioremap_cached(lubbock_maps[i].phys, WINDOW_SIZE);
- if (!lubbock_maps[i].cached)
- printk(KERN_WARNING "Failed to ioremap cached %s\n", lubbock_maps[i].name);
- simple_map_init(&lubbock_maps[i]);
-
- printk(KERN_NOTICE "Probing %s at physical address 0x%08lx (%d-bit bankwidth)\n",
- lubbock_maps[i].name, lubbock_maps[i].phys,
- lubbock_maps[i].bankwidth * 8);
-
- mymtds[i] = do_map_probe("cfi_probe", &lubbock_maps[i]);
-
- if (!mymtds[i]) {
- iounmap((void *)lubbock_maps[i].virt);
- if (lubbock_maps[i].cached)
- iounmap(lubbock_maps[i].cached);
- if (!ret)
- ret = -EIO;
- continue;
- }
- mymtds[i]->owner = THIS_MODULE;
-
- ret = parse_mtd_partitions(mymtds[i], probes,
- &parsed_parts[i], 0);
-
- if (ret > 0)
- nr_parsed_parts[i] = ret;
- }
-
- if (!mymtds[0] && !mymtds[1])
- return ret;
-
- for (i = 0; i < 2; i++) {
- if (!mymtds[i]) {
- printk(KERN_WARNING "%s is absent. Skipping\n", lubbock_maps[i].name);
- } else if (nr_parsed_parts[i]) {
- add_mtd_partitions(mymtds[i], parsed_parts[i], nr_parsed_parts[i]);
- } else if (!i) {
- printk("Using static partitions on %s\n", lubbock_maps[i].name);
- add_mtd_partitions(mymtds[i], lubbock_partitions, ARRAY_SIZE(lubbock_partitions));
- } else {
- printk("Registering %s as whole device\n", lubbock_maps[i].name);
- add_mtd_device(mymtds[i]);
- }
- }
- return 0;
-}
-
-static void __exit cleanup_lubbock(void)
-{
- int i;
- for (i = 0; i < 2; i++) {
- if (!mymtds[i])
- continue;
-
- if (nr_parsed_parts[i] || !i)
- del_mtd_partitions(mymtds[i]);
- else
- del_mtd_device(mymtds[i]);
-
- map_destroy(mymtds[i]);
- iounmap((void *)lubbock_maps[i].virt);
- if (lubbock_maps[i].cached)
- iounmap(lubbock_maps[i].cached);
-
- kfree(parsed_parts[i]);
- }
-}
-
-module_init(init_lubbock);
-module_exit(cleanup_lubbock);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Nicolas Pitre <nico at cam.org>");
-MODULE_DESCRIPTION("MTD map driver for Intel Lubbock");
diff --git a/drivers/mtd/maps/mainstone-flash.c b/drivers/mtd/maps/mainstone-flash.c
deleted file mode 100644
index eaa4bbb..0000000
--- a/drivers/mtd/maps/mainstone-flash.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * $Id: $
- *
- * Map driver for the Mainstone developer platform.
- *
- * Author: Nicolas Pitre
- * Copyright: (C) 2001 MontaVista Software Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/dma-mapping.h>
-#include <linux/slab.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-#include <asm/hardware.h>
-#include <asm/arch/pxa-regs.h>
-#include <asm/arch/mainstone.h>
-
-
-#define ROM_ADDR 0x00000000
-#define FLASH_ADDR 0x04000000
-
-#define WINDOW_SIZE 0x04000000
-
-static void mainstone_map_inval_cache(struct map_info *map, unsigned long from,
- ssize_t len)
-{
- consistent_sync((char *)map->cached + from, len, DMA_FROM_DEVICE);
-}
-
-static struct map_info mainstone_maps[2] = { {
- .size = WINDOW_SIZE,
- .phys = PXA_CS0_PHYS,
- .inval_cache = mainstone_map_inval_cache,
-}, {
- .size = WINDOW_SIZE,
- .phys = PXA_CS1_PHYS,
- .inval_cache = mainstone_map_inval_cache,
-} };
-
-static struct mtd_partition mainstone_partitions[] = {
- {
- .name = "Bootloader",
- .size = 0x00040000,
- .offset = 0,
- .mask_flags = MTD_WRITEABLE /* force read-only */
- },{
- .name = "Kernel",
- .size = 0x00400000,
- .offset = 0x00040000,
- },{
- .name = "Filesystem",
- .size = MTDPART_SIZ_FULL,
- .offset = 0x00440000
- }
-};
-
-static struct mtd_info *mymtds[2];
-static struct mtd_partition *parsed_parts[2];
-static int nr_parsed_parts[2];
-
-static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
-
-static int __init init_mainstone(void)
-{
- int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
- int ret = 0, i;
-
- mainstone_maps[0].bankwidth = (BOOT_DEF & 1) ? 2 : 4;
- mainstone_maps[1].bankwidth = 4;
-
- /* Compensate for SW7 which swaps the flash banks */
- mainstone_maps[SW7].name = "processor flash";
- mainstone_maps[SW7 ^ 1].name = "main board flash";
-
- printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
- mainstone_maps[0].name);
-
- for (i = 0; i < 2; i++) {
- mainstone_maps[i].virt = ioremap(mainstone_maps[i].phys,
- WINDOW_SIZE);
- if (!mainstone_maps[i].virt) {
- printk(KERN_WARNING "Failed to ioremap %s\n",
- mainstone_maps[i].name);
- if (!ret)
- ret = -ENOMEM;
- continue;
- }
- mainstone_maps[i].cached =
- ioremap_cached(mainstone_maps[i].phys, WINDOW_SIZE);
- if (!mainstone_maps[i].cached)
- printk(KERN_WARNING "Failed to ioremap cached %s\n",
- mainstone_maps[i].name);
- simple_map_init(&mainstone_maps[i]);
-
- printk(KERN_NOTICE
- "Probing %s at physical address 0x%08lx"
- " (%d-bit bankwidth)\n",
- mainstone_maps[i].name, mainstone_maps[i].phys,
- mainstone_maps[i].bankwidth * 8);
-
- mymtds[i] = do_map_probe("cfi_probe", &mainstone_maps[i]);
-
- if (!mymtds[i]) {
- iounmap((void *)mainstone_maps[i].virt);
- if (mainstone_maps[i].cached)
- iounmap(mainstone_maps[i].cached);
- if (!ret)
- ret = -EIO;
- continue;
- }
- mymtds[i]->owner = THIS_MODULE;
-
- ret = parse_mtd_partitions(mymtds[i], probes,
- &parsed_parts[i], 0);
-
- if (ret > 0)
- nr_parsed_parts[i] = ret;
- }
-
- if (!mymtds[0] && !mymtds[1])
- return ret;
-
- for (i = 0; i < 2; i++) {
- if (!mymtds[i]) {
- printk(KERN_WARNING "%s is absent. Skipping\n",
- mainstone_maps[i].name);
- } else if (nr_parsed_parts[i]) {
- add_mtd_partitions(mymtds[i], parsed_parts[i],
- nr_parsed_parts[i]);
- } else if (!i) {
- printk("Using static partitions on %s\n",
- mainstone_maps[i].name);
- add_mtd_partitions(mymtds[i], mainstone_partitions,
- ARRAY_SIZE(mainstone_partitions));
- } else {
- printk("Registering %s as whole device\n",
- mainstone_maps[i].name);
- add_mtd_device(mymtds[i]);
- }
- }
- return 0;
-}
-
-static void __exit cleanup_mainstone(void)
-{
- int i;
- for (i = 0; i < 2; i++) {
- if (!mymtds[i])
- continue;
-
- if (nr_parsed_parts[i] || !i)
- del_mtd_partitions(mymtds[i]);
- else
- del_mtd_device(mymtds[i]);
-
- map_destroy(mymtds[i]);
- iounmap((void *)mainstone_maps[i].virt);
- if (mainstone_maps[i].cached)
- iounmap(mainstone_maps[i].cached);
- kfree(parsed_parts[i]);
- }
-}
-
-module_init(init_mainstone);
-module_exit(cleanup_mainstone);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Nicolas Pitre <nico at cam.org>");
-MODULE_DESCRIPTION("MTD map driver for Intel Mainstone");
diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
new file mode 100644
index 0000000..cb933ac
--- /dev/null
+++ b/drivers/mtd/maps/pxa2xx-flash.c
@@ -0,0 +1,200 @@
+/*
+ * Map driver for Intel XScale PXA2xx platforms.
+ *
+ * Author: Nicolas Pitre
+ * Copyright: (C) 2001 MontaVista Software Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/io.h>
+#include <asm/hardware.h>
+
+#include <asm/mach/flash.h>
+
+static void pxa2xx_map_inval_cache(struct map_info *map, unsigned long from,
+ ssize_t len)
+{
+ consistent_sync((char *)map->cached + from, len, DMA_FROM_DEVICE);
+}
+
+struct pxa2xx_flash_info {
+ struct mtd_partition *parts;
+ int nr_parts;
+ struct mtd_info *mtd;
+ struct map_info map;
+};
+
+
+static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
+
+
+static int __init pxa2xx_flash_probe(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct flash_platform_data *flash = pdev->dev.platform_data;
+ struct pxa2xx_flash_info *info;
+ struct mtd_partition *parts;
+ struct resource *res;
+ int ret = 0;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ info = kmalloc(sizeof(struct pxa2xx_flash_info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ memset(info, 0, sizeof(struct pxa2xx_flash_info));
+ info->map.name = (char *) flash->name;
+ info->map.bankwidth = flash->width;
+ info->map.phys = res->start;
+ info->map.size = res->end - res->start + 1;
+ info->parts = flash->parts;
+ info->nr_parts = flash->nr_parts;
+
+ info->map.virt = ioremap(info->map.phys, info->map.size);
+ if (!info->map.virt) {
+ printk(KERN_WARNING "Failed to ioremap %s\n",
+ info->map.name);
+ return -ENOMEM;
+ }
+ info->map.cached =
+ ioremap_cached(info->map.phys, info->map.size);
+ if (!info->map.cached)
+ printk(KERN_WARNING "Failed to ioremap cached %s\n",
+ info->map.name);
+ info->map.inval_cache = pxa2xx_map_inval_cache;
+ simple_map_init(&info->map);
+
+ printk(KERN_NOTICE
+ "Probing %s at physical address 0x%08lx"
+ " (%d-bit bankwidth)\n",
+ info->map.name, (unsigned long)info->map.phys,
+ info->map.bankwidth * 8);
+
+ info->mtd = do_map_probe(flash->map_name, &info->map);
+
+ if (!info->mtd) {
+ iounmap((void *)info->map.virt);
+ if (info->map.cached)
+ iounmap(info->map.cached);
+ return -EIO;
+ }
+ info->mtd->owner = THIS_MODULE;
+
+#ifdef CONFIG_MTD_PARTITIONS
+ ret = parse_mtd_partitions(info->mtd, probes, &parts, 0);
+
+ if (ret > 0) {
+ info->nr_parts = ret;
+ info->parts = parts;
+ }
+#endif
+
+ if (info->nr_parts) {
+ add_mtd_partitions(info->mtd, info->parts,
+ info->nr_parts);
+ } else {
+ printk("Registering %s as whole device\n",
+ info->map.name);
+ add_mtd_device(info->mtd);
+ }
+
+ dev_set_drvdata(dev, info);
+ return 0;
+}
+
+static int __exit pxa2xx_flash_remove(struct device *dev)
+{
+ struct pxa2xx_flash_info *info = dev_get_drvdata(dev);
+
+ dev_set_drvdata(dev, NULL);
+
+#ifdef CONFIG_MTD_PARTITIONS
+ if (info->nr_parts)
+ del_mtd_partitions(info->mtd);
+ else
+#endif
+ del_mtd_device(info->mtd);
+
+ map_destroy(info->mtd);
+ iounmap(info->map.virt);
+ if (info->map.cached)
+ iounmap(info->map.cached);
+ kfree(info->parts);
+ kfree(info);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int pxa2xx_flash_suspend(struct device *dev, pm_message_t state)
+{
+ struct pxa2xx_flash_info *info = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (info->mtd && info->mtd->suspend)
+ ret = info->mtd->suspend(info->mtd);
+ return ret;
+}
+
+static int pxa2xx_flash_resume(struct device *dev)
+{
+ struct pxa2xx_flash_info *info = dev_get_drvdata(dev);
+
+ if (info->mtd && info->mtd->resume)
+ info->mtd->resume(info->mtd);
+ return 0;
+}
+static void pxa2xx_flash_shutdown(struct device *dev)
+{
+ struct pxa2xx_flash_info *info = dev_get_drvdata(dev);
+
+ if (info && info->mtd->suspend(info->mtd) == 0)
+ info->mtd->resume(info->mtd);
+}
+#else
+#define pxa2xx_flash_suspend NULL
+#define pxa2xx_flash_resume NULL
+#define pxa2xx_flash_shutdown NULL
+#endif
+
+static struct device_driver pxa2xx_flash_driver = {
+ .name = "pxa2xx-flash",
+ .bus = &platform_bus_type,
+ .probe = pxa2xx_flash_probe,
+ .remove = __exit_p(pxa2xx_flash_remove),
+ .suspend = pxa2xx_flash_suspend,
+ .resume = pxa2xx_flash_resume,
+ .shutdown = pxa2xx_flash_shutdown,
+};
+
+static int __init init_pxa2xx_flash(void)
+{
+ return driver_register(&pxa2xx_flash_driver);
+}
+
+static void __exit cleanup_pxa2xx_flash(void)
+{
+ driver_unregister(&pxa2xx_flash_driver);
+}
+
+module_init(init_pxa2xx_flash);
+module_exit(cleanup_pxa2xx_flash);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Nicolas Pitre <nico at cam.org>");
+MODULE_DESCRIPTION("MTD map driver for Intel XScale PXA2xx");
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