On Mon, Oct 19, 2009 at 11:53 AM, Manuel Lauss <manuel.lauss@xxxxxxxxxxxxxx> wrote:
Replace the devboard NOR MTD mapping driver with physmap-flash support.
Also honor the "swapboot" switch settings wrt. to the layout of the
NOR partitions.
Signed-off-by: Manuel Lauss <manuel.lauss@xxxxxxxxx>
---
on top of mips-queue, run-tested on db1200.
arch/mips/alchemy/devboards/db1x00/platform.c | 20 +++
arch/mips/alchemy/devboards/pb1000/board_setup.c | 7 +
arch/mips/alchemy/devboards/pb1100/platform.c | 7 +
arch/mips/alchemy/devboards/pb1200/platform.c | 9 ++
arch/mips/alchemy/devboards/pb1500/platform.c | 7 +
arch/mips/alchemy/devboards/pb1550/platform.c | 6 +
arch/mips/alchemy/devboards/platform.c | 104 ++++++++++++++
arch/mips/alchemy/devboards/platform.h | 3 +
drivers/mtd/maps/Kconfig | 6 -
drivers/mtd/maps/Makefile | 1 -
drivers/mtd/maps/alchemy-flash.c | 166 ----------------------
11 files changed, 163 insertions(+), 173 deletions(-)
delete mode 100644 drivers/mtd/maps/alchemy-flash.c
diff --git a/arch/mips/alchemy/devboards/db1x00/platform.c b/arch/mips/alchemy/devboards/db1x00/platform.c
index 0ac5dd0..62e2a96 100644
--- a/arch/mips/alchemy/devboards/db1x00/platform.c
+++ b/arch/mips/alchemy/devboards/db1x00/platform.c
@@ -22,6 +22,7 @@
#include <linux/platform_device.h>
#include <asm/mach-au1x00/au1xxx.h>
+#include <asm/mach-db1x00/bcsr.h>
#include "../platform.h"
/* DB1xxx PCMCIA interrupt sources:
@@ -32,6 +33,7 @@
*/
#define DB1XXX_HAS_PCMCIA
+#define F_SWAPPED (bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT)
#if defined(CONFIG_MIPS_DB1000)
#define DB1XXX_PCMCIA_CD0 AU1000_GPIO0_INT
@@ -40,6 +42,8 @@
#define DB1XXX_PCMCIA_CD1 AU1000_GPIO3_INT
#define DB1XXX_PCMCIA_STSCHG1 AU1000_GPIO4_INT
#define DB1XXX_PCMCIA_CARD1 AU1000_GPIO5_INT
+#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
#elif defined(CONFIG_MIPS_DB1100)
#define DB1XXX_PCMCIA_CD0 AU1100_GPIO0_INT
#define DB1XXX_PCMCIA_STSCHG0 AU1100_GPIO1_INT
@@ -47,6 +51,8 @@
#define DB1XXX_PCMCIA_CD1 AU1100_GPIO3_INT
#define DB1XXX_PCMCIA_STSCHG1 AU1100_GPIO4_INT
#define DB1XXX_PCMCIA_CARD1 AU1100_GPIO5_INT
+#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
#elif defined(CONFIG_MIPS_DB1500)
#define DB1XXX_PCMCIA_CD0 AU1500_GPIO0_INT
#define DB1XXX_PCMCIA_STSCHG0 AU1500_GPIO1_INT
@@ -54,6 +60,8 @@
#define DB1XXX_PCMCIA_CD1 AU1500_GPIO3_INT
#define DB1XXX_PCMCIA_STSCHG1 AU1500_GPIO4_INT
#define DB1XXX_PCMCIA_CARD1 AU1500_GPIO5_INT
+#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
#elif defined(CONFIG_MIPS_DB1550)
#define DB1XXX_PCMCIA_CD0 AU1550_GPIO0_INT
#define DB1XXX_PCMCIA_STSCHG0 AU1550_GPIO21_INT
@@ -61,9 +69,20 @@
#define DB1XXX_PCMCIA_CD1 AU1550_GPIO1_INT
#define DB1XXX_PCMCIA_STSCHG1 AU1550_GPIO22_INT
#define DB1XXX_PCMCIA_CARD1 AU1550_GPIO5_INT
+#define BOARD_FLASH_SIZE 0x08000000 /* 128MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
#else
/* other board: no PCMCIA */
#undef DB1XXX_HAS_PCMCIA
+#undef F_SWAPPED
+#define F_SWAPPED 0
+#if defined(CONFIG_MIPS_BOSPORUS)
+#define BOARD_FLASH_SIZE 0x01000000 /* 16MB */
+#define BOARD_FLASH_WIDTH 2 /* 16-bits */
+#elif defined(CONFIG_MIPS_MIRAGE)
+#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#endif
#endif
static int __init db1xxx_dev_init(void)
@@ -93,6 +112,7 @@ static int __init db1xxx_dev_init(void)
0,
1);
#endif
+ db1x_register_norflash(BOARD_FLASH_SIZE, BOARD_FLASH_WIDTH, F_SWAPPED);
return 0;
}
device_initcall(db1xxx_dev_init);
diff --git a/arch/mips/alchemy/devboards/pb1000/board_setup.c b/arch/mips/alchemy/devboards/pb1000/board_setup.c
index 287d661..c8d3789 100644
--- a/arch/mips/alchemy/devboards/pb1000/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1000/board_setup.c
@@ -31,6 +31,7 @@
#include <asm/mach-pb1x00/pb1000.h>
#include <prom.h>
+#include "../platform.h"
const char *get_system_type(void)
{
@@ -190,3 +191,9 @@ static int __init pb1000_init_irq(void)
return 0;
}
arch_initcall(pb1000_init_irq);
+
+static int __init pb1000_device_init(void)
+{
+ return db1x_register_norflash(8 * 1024 * 1024, 4, 0);
+}
+device_initcall(pb1000_device_init);
diff --git a/arch/mips/alchemy/devboards/pb1100/platform.c b/arch/mips/alchemy/devboards/pb1100/platform.c
index ec932e7..bfc5ab6 100644
--- a/arch/mips/alchemy/devboards/pb1100/platform.c
+++ b/arch/mips/alchemy/devboards/pb1100/platform.c
@@ -21,11 +21,14 @@
#include <linux/init.h>
#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-db1x00/bcsr.h>
#include "../platform.h"
static int __init pb1100_dev_init(void)
{
+ int swapped;
+
/* PCMCIA. single socket, identical to Pb1500 */
db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS,
PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
@@ -38,6 +41,10 @@ static int __init pb1100_dev_init(void)
/*AU1100_GPIO10_INT*/0, /* stschg */
0, /* eject */
0); /* id */
+
+ swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT;
+ db1x_register_norflash(64 * 1024 * 1024, 4, swapped);
+
return 0;
}
device_initcall(pb1100_dev_init);
diff --git a/arch/mips/alchemy/devboards/pb1200/platform.c b/arch/mips/alchemy/devboards/pb1200/platform.c
index c8b7ae3..736d647 100644
--- a/arch/mips/alchemy/devboards/pb1200/platform.c
+++ b/arch/mips/alchemy/devboards/pb1200/platform.c
@@ -172,6 +172,8 @@ static struct platform_device *board_platform_devices[] __initdata = {
static int __init board_register_devices(void)
{
+ int swapped;
+
#ifdef CONFIG_MIPS_PB1200
db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS,
PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
@@ -222,6 +224,13 @@ static int __init board_register_devices(void)
1);
#endif
+ swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1200_SWAPBOOT;
+#ifdef CONFIG_MIPS_PB1200
+ db1x_register_norflash(128 * 1024 * 1024, 2, swapped);
+#else
+ db1x_register_norflash(64 * 1024 * 1024, 2, swapped);
+#endif
+
return platform_add_devices(board_platform_devices,
ARRAY_SIZE(board_platform_devices));
}
diff --git a/arch/mips/alchemy/devboards/pb1500/platform.c b/arch/mips/alchemy/devboards/pb1500/platform.c
index cdce775..529acb7 100644
--- a/arch/mips/alchemy/devboards/pb1500/platform.c
+++ b/arch/mips/alchemy/devboards/pb1500/platform.c
@@ -20,11 +20,14 @@
#include <linux/init.h>
#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-db1x00/bcsr.h>
#include "../platform.h"
static int __init pb1500_dev_init(void)
{
+ int swapped;
+
/* PCMCIA. single socket, identical to Pb1500 */
db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS,
PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
@@ -37,6 +40,10 @@ static int __init pb1500_dev_init(void)
/*AU1500_GPIO10_INT*/0, /* stschg */
0, /* eject */
0); /* id */
+
+ swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT;
+ db1x_register_norflash(64 * 1024 * 1024, 4, swapped);
+
return 0;
}
device_initcall(pb1500_dev_init);
diff --git a/arch/mips/alchemy/devboards/pb1550/platform.c b/arch/mips/alchemy/devboards/pb1550/platform.c
index b496fb6..4613391 100644
--- a/arch/mips/alchemy/devboards/pb1550/platform.c
+++ b/arch/mips/alchemy/devboards/pb1550/platform.c
@@ -22,11 +22,14 @@
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-pb1x00/pb1550.h>
+#include <asm/mach-db1x00/bcsr.h>
#include "../platform.h"
static int __init pb1550_dev_init(void)
{
+ int swapped;
+
/* Pb1550, like all others, also has statuschange irqs; however they're
* wired up on one of the Au1550's shared GPIO201_205 line, which also
* services the PCMCIA card interrupts. So we ignore statuschange and
@@ -58,6 +61,9 @@ static int __init pb1550_dev_init(void)
0,
1);
+ swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_PB1550_SWAPBOOT;
+ db1x_register_norflash(128 * 1024 * 1024, 4, swapped);
+
return 0;
}
device_initcall(pb1550_dev_init);
diff --git a/arch/mips/alchemy/devboards/platform.c b/arch/mips/alchemy/devboards/platform.c
index 48c537c..7f2bcee 100644
--- a/arch/mips/alchemy/devboards/platform.c
+++ b/arch/mips/alchemy/devboards/platform.c
@@ -3,6 +3,9 @@
*/
#include <linux/init.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/physmap.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
@@ -87,3 +90,104 @@ out:
kfree(sr);
return ret;
}
+
+#define YAMON_SIZE 0x00100000
+#define YAMON_ENV_SIZE 0x00040000
+
+int __init db1x_register_norflash(unsigned long size, int width,
+ int swapped)
+{
+ struct physmap_flash_data *pfd;
+ struct platform_device *pd;
+ struct mtd_partition *parts;
+ struct resource *res;
+ int ret, i;
+
+ if (size < (8 * 1024 * 1024))
+ return -EINVAL;
+
+ ret = -ENOMEM;
+ parts = kzalloc(sizeof(struct mtd_partition) * 5, GFP_KERNEL);
+ if (!parts)
+ goto out;
+
+ res = kzalloc(sizeof(struct resource), GFP_KERNEL);
+ if (!res)
+ goto out1;
+
+ pfd = kzalloc(sizeof(struct physmap_flash_data), GFP_KERNEL);
+ if (!pfd)
+ goto out2;
+
+ pd = platform_device_alloc("physmap-flash", 0);
+ if (!pd)
+ goto out3;
+
+ /* NOR flash ends at 0x20000000, regardless of size */
+ res->start = 0x20000000 - size;
+ res->end = 0x20000000 - 1;
+ res->flags = IORESOURCE_MEM;
+
+ /* partition setup. Most Develboards have a switch which allows
+ * to swap the physical locations of the 2 NOR flash banks.
+ */
+ i = 0;
+ if (!swapped) {
+ /* first NOR chip */
+ parts[i].offset = 0;
+ parts[i].name = "User FS";
+ parts[i].size = size / 2;
+ i++;
+ }
+
+ parts[i].offset = MTDPART_OFS_APPEND;
+ parts[i].name = "User FS 2";
+ parts[i].size = (size / 2) - (0x20000000 - 0x1fc00000);
+ i++;
+
+ parts[i].offset = MTDPART_OFS_APPEND;
+ parts[i].name = "YAMON";
+ parts[i].size = YAMON_SIZE;
+ parts[i].mask_flags = MTD_WRITEABLE;
+ i++;
+
+ parts[i].offset = MTDPART_OFS_APPEND;
+ parts[i].name = "raw kernel";
+ parts[i].size = 0x00400000 - YAMON_SIZE - YAMON_ENV_SIZE;
+ i++;
+
+ parts[i].offset = MTDPART_OFS_APPEND;
+ parts[i].name = "YAMON Env";
+ parts[i].size = YAMON_ENV_SIZE;
+ parts[i].mask_flags = MTD_WRITEABLE;
+ i++;
+
+ if (swapped) {
+ parts[i].offset = MTDPART_OFS_APPEND;
+ parts[i].name = "User FS";
+ parts[i].size = size / 2;
+ i++;
+ }
+
+ pfd->width = width;
+ pfd->parts = parts;
+ pfd->nr_parts = 5;
+
+ pd->dev.platform_data = pfd;
+ pd->resource = res;
+ pd->num_resources = 1;
+
+ ret = platform_device_add(pd);
+ if (!ret)
+ return ret;
+
+ platform_device_put(pd);
+out3:
+ kfree(pfd);
+out2:
+ kfree(res);
+out1:
+ kfree(parts);
+out:
+ return ret;
+}
diff --git a/arch/mips/alchemy/devboards/platform.h b/arch/mips/alchemy/devboards/platform.h
index 55ecf7e..828c54e 100644
--- a/arch/mips/alchemy/devboards/platform.h
+++ b/arch/mips/alchemy/devboards/platform.h
@@ -15,4 +15,7 @@ int __init db1x_register_pcmcia_socket(unsigned long pseudo_attr_start,
int eject_irq,
int id);
+int __init db1x_register_norflash(unsigned long size, int width,
+ int swapped);
+
#endif
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 841e085..af0e6ef 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -253,12 +253,6 @@ config MTD_NETtel
help
Support for flash chips on NETtel/SecureEdge/SnapGear boards.
-config MTD_ALCHEMY
- tristate "AMD Alchemy Pb1xxx/Db1xxx/RDK MTD support"
- depends on SOC_AU1X00 && MTD_PARTITIONS && MTD_CFI
- help
- Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards
-
config MTD_DILNETPC
tristate "CFI Flash device mapped on DIL/Net PC"
depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 1d5cf86..0256933 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -40,7 +40,6 @@ obj-$(CONFIG_MTD_SCx200_DOCFLASH)+= scx200_docflash.o
obj-$(CONFIG_MTD_DBOX2) += dbox2-flash.o
obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o
obj-$(CONFIG_MTD_PCI) += pci.o
-obj-$(CONFIG_MTD_ALCHEMY) += alchemy-flash.o
obj-$(CONFIG_MTD_AUTCPU12) += autcpu12-nvram.o
obj-$(CONFIG_MTD_EDB7312) += edb7312.o
obj-$(CONFIG_MTD_IMPA7) += impa7.o
diff --git a/drivers/mtd/maps/alchemy-flash.c b/drivers/mtd/maps/alchemy-flash.c
deleted file mode 100644
index 845ad4f..0000000
--- a/drivers/mtd/maps/alchemy-flash.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Flash memory access on AMD Alchemy evaluation boards
- *
- * (C) 2003, 2004 Pete Popov <ppopov@xxxxxxxxxxxxxxxxx>
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-
-#ifdef CONFIG_MIPS_PB1000
-#define BOARD_MAP_NAME "Pb1000 Flash"
-#define BOARD_FLASH_SIZE 0x00800000 /* 8MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_PB1500
-#define BOARD_MAP_NAME "Pb1500 Flash"
-#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_PB1100
-#define BOARD_MAP_NAME "Pb1100 Flash"
-#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_PB1550
-#define BOARD_MAP_NAME "Pb1550 Flash"
-#define BOARD_FLASH_SIZE 0x08000000 /* 128MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_PB1200
-#define BOARD_MAP_NAME "Pb1200 Flash"
-#define BOARD_FLASH_SIZE 0x08000000 /* 128MB */
-#define BOARD_FLASH_WIDTH 2 /* 16-bits */
-#endif
-
-#ifdef CONFIG_MIPS_DB1000
-#define BOARD_MAP_NAME "Db1000 Flash"
-#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_DB1500
-#define BOARD_MAP_NAME "Db1500 Flash"
-#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_DB1100
-#define BOARD_MAP_NAME "Db1100 Flash"
-#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_DB1550
-#define BOARD_MAP_NAME "Db1550 Flash"
-#define BOARD_FLASH_SIZE 0x08000000 /* 128MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#endif
-
-#ifdef CONFIG_MIPS_DB1200
-#define BOARD_MAP_NAME "Db1200 Flash"
-#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
-#define BOARD_FLASH_WIDTH 2 /* 16-bits */
-#endif
-
-#ifdef CONFIG_MIPS_BOSPORUS
-#define BOARD_MAP_NAME "Bosporus Flash"
-#define BOARD_FLASH_SIZE 0x01000000 /* 16MB */
-#define BOARD_FLASH_WIDTH 2 /* 16-bits */
-#endif
-
-#ifdef CONFIG_MIPS_MIRAGE
-#define BOARD_MAP_NAME "Mirage Flash"
-#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
-#define BOARD_FLASH_WIDTH 4 /* 32-bits */
-#define USE_LOCAL_ACCESSORS /* why? */
-#endif
-
-static struct map_info alchemy_map = {
- .name = BOARD_MAP_NAME,
-};
-
-static struct mtd_partition alchemy_partitions[] = {
- {
- .name = "User FS",
- .size = BOARD_FLASH_SIZE - 0x00400000,
- .offset = 0x0000000
- },{
- .name = "YAMON",
- .size = 0x0100000,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = MTD_WRITEABLE
- },{
- .name = "raw kernel",
- .size = (0x300000 - 0x40000), /* last 256KB is yamon env */
- .offset = MTDPART_OFS_APPEND,
- }
-};
-
-static struct mtd_info *mymtd;
-
-static int __init alchemy_mtd_init(void)
-{
- struct mtd_partition *parts;
- int nb_parts = 0;
- unsigned long window_addr;
- unsigned long window_size;
-
- /* Default flash buswidth */
- alchemy_map.bankwidth = BOARD_FLASH_WIDTH;
-
- window_addr = 0x20000000 - BOARD_FLASH_SIZE;
- window_size = BOARD_FLASH_SIZE;
-
- /*
- * Static partition definition selection
- */
- parts = alchemy_partitions;
- nb_parts = ARRAY_SIZE(alchemy_partitions);
- alchemy_map.size = window_size;
-
- /*
- * Now let's probe for the actual flash. Do it here since
- * specific machine settings might have been set above.
- */
- printk(KERN_NOTICE BOARD_MAP_NAME ": probing %d-bit flash bus\n",
- alchemy_map.bankwidth*8);
- alchemy_map.virt = ioremap(window_addr, window_size);
- mymtd = do_map_probe("cfi_probe", &alchemy_map);
- if (!mymtd) {
- iounmap(alchemy_map.virt);
- return -ENXIO;
- }
- mymtd->owner = THIS_MODULE;
-
- add_mtd_partitions(mymtd, parts, nb_parts);
- return 0;
-}
-
-static void __exit alchemy_mtd_cleanup(void)
-{
- if (mymtd) {
- del_mtd_partitions(mymtd);
- map_destroy(mymtd);
- iounmap(alchemy_map.virt);
- }
-}
-
-module_init(alchemy_mtd_init);
-module_exit(alchemy_mtd_cleanup);
-
-MODULE_AUTHOR("Embedded Alley Solutions, Inc");
-MODULE_DESCRIPTION(BOARD_MAP_NAME " MTD driver");
-MODULE_LICENSE("GPL");
--
1.6.5
