Chromium: arm: tegra: Add NAND support

board/tegra2/common/nand/HY27UF084G2B/tegra2_nand.h

+/* register offset */
+#define NAND_COMMAND_0          0x00
+#define NAND_STATUS_0           0x04
+#define NAND_ISR_0              0x08
+#define NAND_IER_0              0x0C
+#define NAND_CONFIG_0           0x10
+#define NAND_TIMING_0           0x14
+#define NAND_RESP_0             0x18
+#define NAND_TIMING2_0          0x1C
+#define NAND_CMD_REG1_0         0x20
+#define NAND_CMD_REG2_0         0x24
+#define NAND_ADDR_REG1_0        0x28
+#define NAND_ADDR_REG2_0        0x2C
+
+#define LP_OPTIONS (NAND_NO_READRDY | NAND_NO_AUTOINCR)
+
+#define Bit0  0x00000001

[Tom Warren, 2011/03/08 20:43:08]

All of these are already in common/board.h. Please include that file here or in
the .c file.

+#define Bit1  0x00000002
+#define Bit2  0x00000004
+#define Bit3  0x00000008
+#define Bit4  0x00000010
+#define Bit5  0x00000020
+#define Bit6  0x00000040
+#define Bit7  0x00000080
+#define Bit8  0x00000100
+#define Bit9  0x00000200
+#define Bit10 0x00000400
+#define Bit11 0x00000800
+#define Bit12 0x00001000
+#define Bit13 0x00002000
+#define Bit14 0x00004000
+#define Bit15 0x00008000
+#define Bit16 0x00010000
+#define Bit17 0x00020000
+#define Bit18 0x00040000
+#define Bit19 0x00080000
+#define Bit20 0x00100000
+#define Bit21 0x00200000
+#define Bit22 0x00400000
+#define Bit23 0x00800000
+#define Bit24 0x01000000
+#define Bit25 0x02000000
+#define Bit26 0x04000000
+#define Bit27 0x08000000
+#define Bit28 0x10000000
+#define Bit29 0x20000000
+#define Bit30 0x40000000
+#define Bit31 0x80000000
+
+static uint8_t tegra2_nand_read_byte(struct mtd_info *mtd);
+static void tegra2_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len);
+static void tegra2_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len);
+static int tegra2_nand_waitfor_GO_cleared(struct mtd_info *mtd);
+static int tegra2_nand_dev_ready(struct mtd_info *mtd);
+
+
+