@@ -119,8 +119,9 @@
};
flash@34000000 {
- compatible = "arm,versatile-flash";
- reg = <0x34000000 0x4000000>;
+ /* 64 MiB NOR flash in non-interleaved chips */
+ compatible = "arm,versatile-flash", "cfi-flash";
+ reg = <0x34000000 0x04000000>;
bank-width = <4>;
};
@@ -32,7 +32,6 @@
#include <linux/amba/clcd.h>
#include <linux/platform_data/video-clcd-versatile.h>
#include <linux/amba/mmci.h>
-#include <linux/mtd/physmap.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -42,27 +41,15 @@
#define __io_address(n) ((void __iomem __force *)IO_ADDRESS(n))
/*
- * Memory definitions
- */
-#define VERSATILE_FLASH_BASE 0x34000000
-#define VERSATILE_FLASH_SIZE SZ_64M
-
-/*
* ------------------------------------------------------------------------
* Versatile Registers
* ------------------------------------------------------------------------
*/
#define VERSATILE_SYS_PCICTL_OFFSET 0x44
#define VERSATILE_SYS_MCI_OFFSET 0x48
-#define VERSATILE_SYS_FLASH_OFFSET 0x4C
#define VERSATILE_SYS_CLCD_OFFSET 0x50
/*
- * VERSATILE_SYS_FLASH
- */
-#define VERSATILE_FLASHPROG_FLVPPEN (1 << 0) /* Enable writing to flash */
-
-/*
* VERSATILE peripheral addresses
*/
#define VERSATILE_MMCI0_BASE 0x10005000 /* MMC interface */
@@ -86,39 +73,6 @@
static void __iomem *versatile_sys_base;
static void __iomem *versatile_ib2_ctrl;
-static void versatile_flash_set_vpp(struct platform_device *pdev, int on)
-{
- u32 val;
-
- val = readl(versatile_sys_base + VERSATILE_SYS_FLASH_OFFSET);
- if (on)
- val |= VERSATILE_FLASHPROG_FLVPPEN;
- else
- val &= ~VERSATILE_FLASHPROG_FLVPPEN;
- writel(val, versatile_sys_base + VERSATILE_SYS_FLASH_OFFSET);
-}
-
-static struct physmap_flash_data versatile_flash_data = {
- .width = 4,
- .set_vpp = versatile_flash_set_vpp,
-};
-
-static struct resource versatile_flash_resource = {
- .start = VERSATILE_FLASH_BASE,
- .end = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
-struct platform_device versatile_flash_device = {
- .name = "physmap-flash",
- .id = 0,
- .dev = {
- .platform_data = &versatile_flash_data,
- },
- .num_resources = 1,
- .resource = &versatile_flash_resource,
-};
-
unsigned int mmc_status(struct device *dev)
{
struct amba_device *adev = container_of(dev, struct amba_device, dev);
@@ -390,7 +344,6 @@ static void __init versatile_dt_init(void)
versatile_dt_pci_init();
- platform_device_register(&versatile_flash_device);
of_platform_populate(NULL, of_default_bus_match_table,
versatile_auxdata_lookup, NULL);
}
This moves the boardfile definition of the flash memory in the Versatile board into the device tree. The flash was already defined with the property "arm,versatile-flash" which was not handled by the kernel: instead define it as compatible also with "cfi-flash" so it detects properly, and delete the corresponding boardfile code so we get a smooth transition. The old compatible string "arm,versatile-flash" is reused to indicate to the MTD physmap subsystem that this flash requires special VPP handling. (See separate patch.) Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- arch/arm/boot/dts/versatile-ab.dts | 5 ++-- arch/arm/mach-versatile/versatile_dt.c | 47 ---------------------------------- 2 files changed, 3 insertions(+), 49 deletions(-) -- 2.4.3 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/