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Nand driver for Nomadik 8815 SoC (on NHK8815 board)

PATCH/RFC Alessandro Rubini 1 participant 1 message Mar 11, 2009

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From: Alessandro Rubini <[email protected]>

The patch is based on the base Nomadik support I posted to linux-arm-kernel last week. I cleaned up the code as much as possible, but a V2 patch is definitely expected, based on some cleanup in base Nomadik support.

I didn't split the headers as those have been added for this patch alone, and I know there are unrelated changes in nhk15_defconfig, but this patch as-is applies cleanly over the previous ones.

---
 arch/arm/configs/nhk15_defconfig              |  115 ++++++++-
 arch/arm/mach-nomadik/board-8815nhk.c         |   98 +++++++-
 arch/arm/mach-nomadik/include/mach/fsmc.h     |   36 +++
 arch/arm/mach-nomadik/include/mach/hardware.h |    5 +-
 arch/arm/mach-nomadik/include/mach/nand.h     |   16 ++
 drivers/mtd/nand/Kconfig                      |    6 +
 drivers/mtd/nand/Makefile                     |    1 +
 drivers/mtd/nand/nomadik_nand.c               |  328 +++++++++++++++++++++++++
 8 files changed, 590 insertions(+), 15 deletions(-)
 create mode 100644 arch/arm/mach-nomadik/include/mach/fsmc.h
 create mode 100644 arch/arm/mach-nomadik/include/mach/nand.h
 create mode 100644 drivers/mtd/nand/nomadik_nand.c
arch/arm/configs/nhk15_defconfig +108 -7
index 00c7b8d..1ef9bf1 100644
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
 # Linux kernel version: 2.6.29-rc6
-# Wed Mar  4 13:29:20 2009
+# Tue Mar 10 11:19:10 2009
 #
 CONFIG_ARM=y
 CONFIG_SYS_SUPPORTS_APM_EMULATION=y
@@ -93,6 +93,7 @@ CONFIG_HAVE_OPROFILE=y
 # CONFIG_KPROBES is not set
 CONFIG_HAVE_KPROBES=y
 CONFIG_HAVE_KRETPROBES=y
+CONFIG_HAVE_CLK=y
 CONFIG_HAVE_GENERIC_DMA_COHERENT=y
 CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
@@ -138,8 +139,8 @@ CONFIG_FREEZER=y
 # CONFIG_ARCH_NETX is not set
 # CONFIG_ARCH_H720X is not set
 # CONFIG_ARCH_IMX is not set
-# CONFIG_ARCH_IOP13XX is not set
 CONFIG_ARCH_NOMADIK=y
+# CONFIG_ARCH_IOP13XX is not set
 # CONFIG_ARCH_IOP32X is not set
 # CONFIG_ARCH_IOP33X is not set
 # CONFIG_ARCH_IXP23XX is not set
@@ -167,6 +168,12 @@ CONFIG_ARCH_NOMADIK=y
 # CONFIG_ARCH_W90X900 is not set
 
 #
+# Nomadik boards
+#
+CONFIG_MACH_NOMADIK_8815NHK=y
+CONFIG_NOMADIK_8815=y
+
+#
 # Processor Type
 #
 CONFIG_CPU_32=y
@@ -208,7 +215,8 @@ CONFIG_VMSPLIT_3G=y
 CONFIG_PAGE_OFFSET=0xC0000000
 CONFIG_PREEMPT=y
 CONFIG_HZ=100
-# CONFIG_AEABI is not set
+CONFIG_AEABI=y
+CONFIG_OABI_COMPAT=y
 CONFIG_ARCH_FLATMEM_HAS_HOLES=y
 # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
 # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
@@ -260,7 +268,6 @@ CONFIG_BINFMT_ELF=y
 CONFIG_HAVE_AOUT=y
 # CONFIG_BINFMT_AOUT is not set
 # CONFIG_BINFMT_MISC is not set
-# CONFIG_ARTHUR is not set
 
 #
 # Power management options
@@ -399,7 +406,88 @@ CONFIG_EXTRA_FIRMWARE=""
 # CONFIG_DEBUG_DEVRES is not set
 # CONFIG_SYS_HYPERVISOR is not set
 # CONFIG_CONNECTOR is not set
-# CONFIG_MTD is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+CONFIG_MTD_TESTS=m
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_CMDLINE_PARTS is not set
+# CONFIG_MTD_AFS_PARTS is not set
+# CONFIG_MTD_AR7_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_VERIFY_WRITE=y
+# CONFIG_MTD_NAND_ECC_SMC is not set
+# CONFIG_MTD_NAND_MUSEUM_IDS is not set
+CONFIG_MTD_NAND_IDS=y
+# CONFIG_MTD_NAND_DISKONCHIP is not set
+# CONFIG_MTD_NAND_NANDSIM is not set
+# CONFIG_MTD_NAND_PLATFORM is not set
+CONFIG_MTD_NAND_NOMADIK=y
+# CONFIG_MTD_ONENAND is not set
+
+#
+# LPDDR flash memory drivers
+#
+# CONFIG_MTD_LPDDR is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
 # CONFIG_PARPORT is not set
 CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_COW_COMMON is not set
@@ -619,6 +707,8 @@ CONFIG_SSB_POSSIBLE=y
 # CONFIG_MFD_SM501 is not set
 # CONFIG_HTC_PASIC3 is not set
 # CONFIG_MFD_TMIO is not set
+# CONFIG_MFD_T7L66XB is not set
+# CONFIG_MFD_TC6387XB is not set
 
 #
 # Multimedia devices
@@ -797,6 +887,17 @@ CONFIG_MISC_FILESYSTEMS=y
 # CONFIG_BEFS_FS is not set
 # CONFIG_BFS_FS is not set
 # CONFIG_EFS_FS is not set
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_DEBUG=0
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
+# CONFIG_JFFS2_SUMMARY is not set
+# CONFIG_JFFS2_FS_XATTR is not set
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
 # CONFIG_CRAMFS is not set
 # CONFIG_SQUASHFS is not set
 # CONFIG_VXFS_FS is not set
@@ -1063,8 +1164,8 @@ CONFIG_CRC_CCITT=m
 CONFIG_CRC32=y
 # CONFIG_CRC7 is not set
 # CONFIG_LIBCRC32C is not set
-CONFIG_ZLIB_INFLATE=m
-CONFIG_ZLIB_DEFLATE=m
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
 CONFIG_PLIST=y
 CONFIG_HAS_IOMEM=y
 CONFIG_HAS_IOPORT=y
arch/arm/mach-nomadik/board-8815nhk.c +92 -6

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arch/arm/mach-nomadik/include/mach/fsmc.h new file +36 -0
new file mode 100644
index 0000000..f81621c
@@ -0,0 +1,36 @@
+
+/* Definitions for the Nomadik FSMC "Flexible Static Memory controller" */
+
+#ifndef __ASM_ARCH_FSMC_H
+#define __ASM_ARCH_FSMC_H
+
+#include <mach/hardware.h>
+/*
+ * Register list
+ */
+
+/* control and timing registers for CS0..CS3 */
+#define FSMC_BCR0	((void __iomem *)(NOMADIK_FSMC_VA + 0x00))
+#define FSMC_BTR0	((void __iomem *)(NOMADIK_FSMC_VA + 0x04))
+#define FSMC_BCR1	((void __iomem *)(NOMADIK_FSMC_VA + 0x08))
+#define FSMC_BTR1	((void __iomem *)(NOMADIK_FSMC_VA + 0x0c))
+#define FSMC_BCR2	((void __iomem *)(NOMADIK_FSMC_VA + 0x10))
+#define FSMC_BTR2	((void __iomem *)(NOMADIK_FSMC_VA + 0x14))
+#define FSMC_BCR3	((void __iomem *)(NOMADIK_FSMC_VA + 0x18))
+#define FSMC_BTR3	((void __iomem *)(NOMADIK_FSMC_VA + 0x1c))
+
+/* pc-card and nand flash */
+#define FSMC_PCR0	((void __iomem *)(NOMADIK_FSMC_VA + 0x40))
+#define FSMC_PMEM0	((void __iomem *)(NOMADIK_FSMC_VA + 0x48))
+#define FSMC_PATT0	((void __iomem *)(NOMADIK_FSMC_VA + 0x4c))
+#define FSMC_PIO0	((void __iomem *)(NOMADIK_FSMC_VA + 0x50))
+#define FSMC_PECCR0	((void __iomem *)(NOMADIK_FSMC_VA + 0x54))
+
+#define FSMC_PCR1	((void __iomem *)(NOMADIK_FSMC_VA + 0x60))
+#define FSMC_PMEM1	((void __iomem *)(NOMADIK_FSMC_VA + 0x68))
+#define FSMC_PATT1	((void __iomem *)(NOMADIK_FSMC_VA + 0x6c))
+#define FSMC_PIO1	((void __iomem *)(NOMADIK_FSMC_VA + 0x70))
+#define FSMC_PECCR1	((void __iomem *)(NOMADIK_FSMC_VA + 0x74))
+
+
+#endif /* __ASM_ARCH_FSMC_H */
arch/arm/mach-nomadik/include/mach/hardware.h +3 -2
index 2ce3679..f31439b 100644
@@ -96,7 +96,8 @@
 #define DENC_MODE_PAL		0
 #define DENC_MODE_NTSC		1
 
-#define NOMADIK_MTU0_VA (IO_ADDRESS(NOMADIK_MTU0_BASE))
-#define NOMADIK_MTU1_VA (IO_ADDRESS(NOMADIK_MTU1_BASE))
+#define NOMADIK_FSMC_VA		IO_ADDRESS(NOMADIK_FSMC_BASE)
+#define NOMADIK_MTU0_VA		IO_ADDRESS(NOMADIK_MTU0_BASE)
+#define NOMADIK_MTU1_VA		IO_ADDRESS(NOMADIK_MTU1_BASE)
 
 #endif /* __ASM_ARCH_HARDWARE_H */
arch/arm/mach-nomadik/include/mach/nand.h new file +16 -0
new file mode 100644
index 0000000..c3c8254
@@ -0,0 +1,16 @@
+#ifndef __ASM_ARCH_NAND_H
+#define __ASM_ARCH_NAND_H
+
+struct nomadik_nand_platform_data {
+	struct mtd_partition *parts;
+	int nparts;
+	int options;
+	int (*init) (void);
+	int (*exit) (void);
+};
+
+#define NAND_IO_DATA	0x40000000
+#define NAND_IO_CMD	0x40800000
+#define NAND_IO_ADDR	0x41000000
+
+#endif				/* __ASM_ARCH_NAND_H */
drivers/mtd/nand/Kconfig +6 -0
index 8b12e6e..41b4fc7 100644
@@ -420,6 +420,12 @@ config MTD_NAND_MXC
 	  This enables the driver for the NAND flash controller on the
 	  MXC processors.
 
+config MTD_NAND_NOMADIK
+	tristate "ST Nomadik 8815 NAND support"
+	depends on ARCH_NOMADIK
+	help
+	  Driver for the NAND flash controller on the Nomadik, with ECC.
+
 config MTD_NAND_SH_FLCTL
 	tristate "Support for NAND on Renesas SuperH FLCTL"
 	depends on MTD_NAND && SUPERH && CPU_SUBTYPE_SH7723
drivers/mtd/nand/Makefile +1 -0
index b661586..06acb94 100644
@@ -36,5 +36,6 @@ obj-$(CONFIG_MTD_NAND_FSL_ELBC)		+= fsl_elbc_nand.o
 obj-$(CONFIG_MTD_NAND_FSL_UPM)		+= fsl_upm.o
 obj-$(CONFIG_MTD_NAND_SH_FLCTL)		+= sh_flctl.o
 obj-$(CONFIG_MTD_NAND_MXC)		+= mxc_nand.o
+obj-$(CONFIG_MTD_NAND_NOMADIK)		+= nomadik_nand.o
 
 nand-objs := nand_base.o nand_bbt.o
drivers/mtd/nand/nomadik_nand.c new file +328 -0

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