tegra: Add NAND flash support

Simon,

Quoted 7 lines

-----Original Message-----
From: Simon Glass [mailto:sjg at chromium.org]
Sent: Sunday, July 29, 2012 11:53 PM
To: U-Boot Mailing List
Cc: Tom Warren; Stephen Warren; Scott Wood; Simon Glass
Subject: [PATCH v4 0/6] tegra: Add NAND flash support

Quoted 1 line

This series adds NAND flash support to Tegra and enables it on Seaboard.

Applied to u-boot-tegra/next, thanks. The fix for the m28evk and apx4devkit builds (moving common.h to the top in mxs_nand.c) can come from you or Marek, and I'll add it to /next later. But for now, all tegra20 boards build fine.

Tom

Quoted 89 lines

Included here is a proposed device tree binding with most of the properties private to "nvidia,". The binding includes information about the NAND controller as well as the connected NAND device. The Seaboard has a Hynix HY27UF4G2B.

The driver supports ECC-based access and uses DMA and NAND acceleration features of the Tegra SOC to provide access at reasonable speed.

Changes in v2:
- Add new patch to align default buffers in nand_base
- Added comment about the behaviour of the 'resp' register
- Call set_bus_width_page_size() at init to report errors earlier
- Change set_bus_width_page_size() to return an error when needed
- Change timing structure member to u32 to match device tree
- Check for supported bus width in board_nand_init()
- Fix tegra nand header file to remove BIT defines
- Implement a dummy nand_select_chip() instead of nand_hwcontro()
- Make nand_command() display an error on an unknown command
- Minor code tidy-ups in driver for style
- Move cache logic into a separate dma_prepare() function
- Remove CMD_TRANS_SIZE_BYTESx enum
- Remove space after casts
- Remove use of 'register' variables
- Rename struct nand_info to struct nand_drv to avoid nand_info_t confusion - Support 4096 byte page devices, drop 1024 and 2048
- Tidy up nand_waitfor_cmd_completion() logic
- Update NAND binding to add "nvidia," prefix
- Use s32 for device tree integer values

Changes in v3:
- Add reg property for unit address (should be used for chip select)
- Change note in fdt binding about the need for a hardware-specific binding - Fix up typos in fdt binding, and rename the file
- Update fdt binding to make everything Nvidia-specific

Changes in v4:
- Align buffer length to cache line size in dma_prepare()
- Fix "Write Page 0x0 timeout with ECC" error on 4.4.1
- Fix the issue that read_byte can read at most 4 times
- Get some information from Read ID data instead of from device tree
- In nand_command, set NAND_CMD_RNDOUT as unsupported command
- Modify eccoob layout
- Move to using CONFIG_SYS_NAND_SELF_INIT
- Remove "DEFAULT" from comment because that function is not default
- Remove fdt bindings related to page structure
- Remove local read_buf and write_buf functions
- Remove some fields in fdt_nand structure
- Rename CONFIG_TEGRA2_NAND to CONFIG_TEGRA_NAND
- Rename variables my_* as our_*
- Use virt_to_phys() when filling address register

Jim Lin (1):
tegra: nand: Add Tegra NAND driver

Simon Glass (5):
nand: Try to align the default buffers
tegra: Add NAND support to funcmux
tegra: fdt: Add NAND controller binding and definitions
tegra: fdt: Add NAND definitions to fdt
tegra: Enable NAND on Seaboard

 arch/arm/cpu/tegra20-common/funcmux.c              |    7 +
 arch/arm/dts/tegra20.dtsi                          |    7 +
 arch/arm/include/asm/arch-tegra20/funcmux.h        |    3 +
 arch/arm/include/asm/arch-tegra20/tegra20.h        |    1 +
 board/nvidia/dts/tegra20-seaboard.dts              |   10 +
 .../nand/nvidia,tegra20-nand.txt                   |   53 +
 drivers/mtd/nand/Makefile                          |    1 +
 drivers/mtd/nand/nand_base.c                       |    3 +-
 drivers/mtd/nand/tegra_nand.c                      | 1026

++++++++++++++++++++

 drivers/mtd/nand/tegra_nand.h                      |  257 +++++
 include/configs/seaboard.h                         |    9 +
 include/configs/tegra20-common.h                   |    2 +
 include/fdtdec.h                                   |    1 +
 include/linux/mtd/nand.h                           |    7 +-
 lib/fdtdec.c                                       |    1 +
 15 files changed, 1384 insertions(+), 4 deletions(-)  create mode 100644

doc/device-tree-bindings/nand/nvidia,tegra20-nand.txt

 create mode 100644 drivers/mtd/nand/tegra_nand.c  create mode 100644

drivers/mtd/nand/tegra_nand.h

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