bcmring: mtd nand driver (v3)

Hi,

I've updated the mtd nand driver for bcmring machine. It is applicable to the latest kernel.org git tree.

Is it possible for this patch to be merged into the 2.6.32 git tree?

Thanks a lot for your review.

Best,

Leo

From: Leo Chen <[email protected]>
Date: Mon, 28 Sep 2009 14:11:49 -0700
Subject: [PATCH] add bcmring mtd nand driver support

Add mtd umi driver for bcmring arm arch.
Add header files, register definition files,
add entry in Kconfig and Makefile.

remove superfluous comments from bcm nand driver.
use platform resource.
fix section mismatch warning in the driver.

---
 arch/arm/mach-bcmring/arch.c                  |   10 +
 arch/arm/mach-bcmring/include/mach/reg_nand.h |   66 +++
 arch/arm/mach-bcmring/include/mach/reg_umi.h  |  237 ++++++++++
 drivers/mtd/nand/Kconfig                      |   16 +
 drivers/mtd/nand/Makefile                     |    1 +
 drivers/mtd/nand/bcm_umi_bch.c                |  213 +++++++++
 drivers/mtd/nand/bcm_umi_nand.c               |  581 +++++++++++++++++++++++++
 drivers/mtd/nand/nand_bcm_umi.c               |  149 +++++++
 drivers/mtd/nand/nand_bcm_umi.h               |  358 +++++++++++++++
 9 files changed, 1631 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-bcmring/include/mach/reg_nand.h
 create mode 100644 arch/arm/mach-bcmring/include/mach/reg_umi.h
 create mode 100644 drivers/mtd/nand/bcm_umi_bch.c
 create mode 100644 drivers/mtd/nand/bcm_umi_nand.c
 create mode 100644 drivers/mtd/nand/nand_bcm_umi.c
 create mode 100644 drivers/mtd/nand/nand_bcm_umi.h

index 0da693b..074dad6 100644
@@ -76,9 +76,19 @@ static struct ctl_table bcmring_sysctl_reboot[] = {
 	{}
 };
 
+static struct resource nand_resource[] = {
+	[0] = {
+		.start = MM_ADDR_IO_NAND,
+		.end = MM_ADDR_IO_NAND + 0x1000 - 1,
+		.flags = IORESOURCE_MEM,
+	},
+};
+
 static struct platform_device nand_device = {
 	.name = "bcm-nand",
 	.id = -1,
+	.resource = nand_resource,
+	.num_resources	= ARRAY_SIZE(nand_resource),
 };
 
 static struct platform_device *devices[] __initdata = {

index 2fda0b6..34598e9 100644
@@ -203,6 +203,22 @@ config MTD_NAND_S3C2410_CLKSTOP
 	  when the is NAND chip selected or released, but will save
 	  approximately 5mA of power when there is nothing happening.
 
+config MTD_NAND_BCM_UMI
+	tristate "NAND Flash support for BCM Reference Boards"
+	depends on ARCH_BCMRING && MTD_NAND
+	help
+	  This enables the NAND flash controller on the BCM UMI block.
+
+	  No board specfic support is done by this driver, each board
+	  must advertise a platform_device for the driver to attach.
+
+config MTD_NAND_BCM_UMI_HWCS
+	bool "BCM UMI NAND Hardware CS"
+	depends on MTD_NAND_BCM_UMI
+	help
+	  Enable the use of the BCM UMI block's internal CS using NAND.
+	  This should only be used if you know the external NAND CS can toggle.
+
 config MTD_NAND_DISKONCHIP
 	tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
 	depends on EXPERIMENTAL

index 6950d3d..460a1f3 100644
@@ -42,5 +42,6 @@ obj-$(CONFIG_MTD_NAND_SOCRATES)		+= socrates_nand.o
 obj-$(CONFIG_MTD_NAND_TXX9NDFMC)	+= txx9ndfmc.o
 obj-$(CONFIG_MTD_NAND_W90P910)		+= w90p910_nand.o
 obj-$(CONFIG_MTD_NAND_NOMADIK)		+= nomadik_nand.o
+obj-$(CONFIG_MTD_NAND_BCM_UMI)		+= bcm_umi_nand.o nand_bcm_umi.o
 
 nand-objs := nand_base.o nand_bbt.o

1.6.0.6

-- 

Leo Hao Chen

No idea about dwmw2's plans, but I've refreshed your driver in my l2-mtd-2.6.git tree.
http://git.infradead.org/users/dedekind/l2-mtd-2.6.git/commit/005e0a0356c62edcc98ced43cf83d474df92202d

Best Regards,
Artem Bityutskiy (Артём Битюцкий)

005e0a0356c62edcc98ced43cf83d474df92202d

Hi David,

Is there anything else that needs to be done to get this
into the mainline?

Thanks,
Scott