[U-Boot] [PATCH v3 0/7] tegra: Add NAND flash support

Simon Glass
2012-04-17T18:50:07Z

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

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

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

Simon Glass (6):
nand: Try to align the default buffers
fdt: Add debugging to fdtdec_get_int/addr()
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/armv7/tegra2/funcmux.c | 7 +
arch/arm/dts/tegra20.dtsi | 6 +
arch/arm/include/asm/arch-tegra2/funcmux.h | 3 +
arch/arm/include/asm/arch-tegra2/tegra2.h | 1 +
board/nvidia/dts/tegra2-seaboard.dts | 16 +
.../nand/nvidia,tegra20-nand.txt | 68 ++
drivers/mtd/nand/Makefile | 1 +
drivers/mtd/nand/nand_base.c | 3 +-
drivers/mtd/nand/tegra2_nand.c | 1095 ++++++++++++++++++++
drivers/mtd/nand/tegra2_nand.h | 257 +++++
include/configs/seaboard.h | 9 +
include/fdtdec.h | 1 +
include/linux/mtd/nand.h | 7 +-
lib/fdtdec.c | 23 +-
14 files changed, 1487 insertions(+), 10 deletions(-)
create mode 100644 doc/device-tree-bindings/nand/nvidia,tegra20-nand.txt
create mode 100644 drivers/mtd/nand/tegra2_nand.c
create mode 100644 drivers/mtd/nand/tegra2_nand.h

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