tegra: nand: Add Tegra NAND driver
A device tree is used to configure the NAND, including memory
timings and block/pages sizes.
If this node is not present or is disabled, then NAND will not
be initialized.
Signed-off-by: Jim Lin <jilin@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/drivers/mtd/nand/tegra_nand.h b/drivers/mtd/nand/tegra_nand.h
new file mode 100644
index 0000000..7e74be7
--- /dev/null
+++ b/drivers/mtd/nand/tegra_nand.h
@@ -0,0 +1,257 @@
+/*
+ * (C) Copyright 2011 NVIDIA Corporation <www.nvidia.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* register offset */
+#define COMMAND_0 0x00
+#define CMD_GO (1 << 31)
+#define CMD_CLE (1 << 30)
+#define CMD_ALE (1 << 29)
+#define CMD_PIO (1 << 28)
+#define CMD_TX (1 << 27)
+#define CMD_RX (1 << 26)
+#define CMD_SEC_CMD (1 << 25)
+#define CMD_AFT_DAT_MASK (1 << 24)
+#define CMD_AFT_DAT_DISABLE 0
+#define CMD_AFT_DAT_ENABLE (1 << 24)
+#define CMD_TRANS_SIZE_SHIFT 20
+#define CMD_TRANS_SIZE_PAGE 8
+#define CMD_A_VALID (1 << 19)
+#define CMD_B_VALID (1 << 18)
+#define CMD_RD_STATUS_CHK (1 << 17)
+#define CMD_R_BSY_CHK (1 << 16)
+#define CMD_CE7 (1 << 15)
+#define CMD_CE6 (1 << 14)
+#define CMD_CE5 (1 << 13)
+#define CMD_CE4 (1 << 12)
+#define CMD_CE3 (1 << 11)
+#define CMD_CE2 (1 << 10)
+#define CMD_CE1 (1 << 9)
+#define CMD_CE0 (1 << 8)
+#define CMD_CLE_BYTE_SIZE_SHIFT 4
+enum {
+ CMD_CLE_BYTES1 = 0,
+ CMD_CLE_BYTES2,
+ CMD_CLE_BYTES3,
+ CMD_CLE_BYTES4,
+};
+#define CMD_ALE_BYTE_SIZE_SHIFT 0
+enum {
+ CMD_ALE_BYTES1 = 0,
+ CMD_ALE_BYTES2,
+ CMD_ALE_BYTES3,
+ CMD_ALE_BYTES4,
+ CMD_ALE_BYTES5,
+ CMD_ALE_BYTES6,
+ CMD_ALE_BYTES7,
+ CMD_ALE_BYTES8
+};
+
+#define STATUS_0 0x04
+#define STATUS_RBSY0 (1 << 8)
+
+#define ISR_0 0x08
+#define ISR_IS_CMD_DONE (1 << 5)
+#define ISR_IS_ECC_ERR (1 << 4)
+
+#define IER_0 0x0C
+
+#define CFG_0 0x10
+#define CFG_HW_ECC_MASK (1 << 31)
+#define CFG_HW_ECC_DISABLE 0
+#define CFG_HW_ECC_ENABLE (1 << 31)
+#define CFG_HW_ECC_SEL_MASK (1 << 30)
+#define CFG_HW_ECC_SEL_HAMMING 0
+#define CFG_HW_ECC_SEL_RS (1 << 30)
+#define CFG_HW_ECC_CORRECTION_MASK (1 << 29)
+#define CFG_HW_ECC_CORRECTION_DISABLE 0
+#define CFG_HW_ECC_CORRECTION_ENABLE (1 << 29)
+#define CFG_PIPELINE_EN_MASK (1 << 28)
+#define CFG_PIPELINE_EN_DISABLE 0
+#define CFG_PIPELINE_EN_ENABLE (1 << 28)
+#define CFG_ECC_EN_TAG_MASK (1 << 27)
+#define CFG_ECC_EN_TAG_DISABLE 0
+#define CFG_ECC_EN_TAG_ENABLE (1 << 27)
+#define CFG_TVALUE_MASK (3 << 24)
+enum {
+ CFG_TVAL4 = 0 << 24,
+ CFG_TVAL6 = 1 << 24,
+ CFG_TVAL8 = 2 << 24
+};
+#define CFG_SKIP_SPARE_MASK (1 << 23)
+#define CFG_SKIP_SPARE_DISABLE 0
+#define CFG_SKIP_SPARE_ENABLE (1 << 23)
+#define CFG_COM_BSY_MASK (1 << 22)
+#define CFG_COM_BSY_DISABLE 0
+#define CFG_COM_BSY_ENABLE (1 << 22)
+#define CFG_BUS_WIDTH_MASK (1 << 21)
+#define CFG_BUS_WIDTH_8BIT 0
+#define CFG_BUS_WIDTH_16BIT (1 << 21)
+#define CFG_LPDDR1_MODE_MASK (1 << 20)
+#define CFG_LPDDR1_MODE_DISABLE 0
+#define CFG_LPDDR1_MODE_ENABLE (1 << 20)
+#define CFG_EDO_MODE_MASK (1 << 19)
+#define CFG_EDO_MODE_DISABLE 0
+#define CFG_EDO_MODE_ENABLE (1 << 19)
+#define CFG_PAGE_SIZE_SEL_MASK (7 << 16)
+enum {
+ CFG_PAGE_SIZE_256 = 0 << 16,
+ CFG_PAGE_SIZE_512 = 1 << 16,
+ CFG_PAGE_SIZE_1024 = 2 << 16,
+ CFG_PAGE_SIZE_2048 = 3 << 16,
+ CFG_PAGE_SIZE_4096 = 4 << 16
+};
+#define CFG_SKIP_SPARE_SEL_MASK (3 << 14)
+enum {
+ CFG_SKIP_SPARE_SEL_4 = 0 << 14,
+ CFG_SKIP_SPARE_SEL_8 = 1 << 14,
+ CFG_SKIP_SPARE_SEL_12 = 2 << 14,
+ CFG_SKIP_SPARE_SEL_16 = 3 << 14
+};
+#define CFG_TAG_BYTE_SIZE_MASK 0x1FF
+
+#define TIMING_0 0x14
+#define TIMING_TRP_RESP_CNT_SHIFT 28
+#define TIMING_TRP_RESP_CNT_MASK (0xf << TIMING_TRP_RESP_CNT_SHIFT)
+#define TIMING_TWB_CNT_SHIFT 24
+#define TIMING_TWB_CNT_MASK (0xf << TIMING_TWB_CNT_SHIFT)
+#define TIMING_TCR_TAR_TRR_CNT_SHIFT 20
+#define TIMING_TCR_TAR_TRR_CNT_MASK (0xf << TIMING_TCR_TAR_TRR_CNT_SHIFT)
+#define TIMING_TWHR_CNT_SHIFT 16
+#define TIMING_TWHR_CNT_MASK (0xf << TIMING_TWHR_CNT_SHIFT)
+#define TIMING_TCS_CNT_SHIFT 14
+#define TIMING_TCS_CNT_MASK (3 << TIMING_TCS_CNT_SHIFT)
+#define TIMING_TWH_CNT_SHIFT 12
+#define TIMING_TWH_CNT_MASK (3 << TIMING_TWH_CNT_SHIFT)
+#define TIMING_TWP_CNT_SHIFT 8
+#define TIMING_TWP_CNT_MASK (0xf << TIMING_TWP_CNT_SHIFT)
+#define TIMING_TRH_CNT_SHIFT 4
+#define TIMING_TRH_CNT_MASK (3 << TIMING_TRH_CNT_SHIFT)
+#define TIMING_TRP_CNT_SHIFT 0
+#define TIMING_TRP_CNT_MASK (0xf << TIMING_TRP_CNT_SHIFT)
+
+#define RESP_0 0x18
+
+#define TIMING2_0 0x1C
+#define TIMING2_TADL_CNT_SHIFT 0
+#define TIMING2_TADL_CNT_MASK (0xf << TIMING2_TADL_CNT_SHIFT)
+
+#define CMD_REG1_0 0x20
+#define CMD_REG2_0 0x24
+#define ADDR_REG1_0 0x28
+#define ADDR_REG2_0 0x2C
+
+#define DMA_MST_CTRL_0 0x30
+#define DMA_MST_CTRL_GO_MASK (1 << 31)
+#define DMA_MST_CTRL_GO_DISABLE 0
+#define DMA_MST_CTRL_GO_ENABLE (1 << 31)
+#define DMA_MST_CTRL_DIR_MASK (1 << 30)
+#define DMA_MST_CTRL_DIR_READ 0
+#define DMA_MST_CTRL_DIR_WRITE (1 << 30)
+#define DMA_MST_CTRL_PERF_EN_MASK (1 << 29)
+#define DMA_MST_CTRL_PERF_EN_DISABLE 0
+#define DMA_MST_CTRL_PERF_EN_ENABLE (1 << 29)
+#define DMA_MST_CTRL_REUSE_BUFFER_MASK (1 << 27)
+#define DMA_MST_CTRL_REUSE_BUFFER_DISABLE 0
+#define DMA_MST_CTRL_REUSE_BUFFER_ENABLE (1 << 27)
+#define DMA_MST_CTRL_BURST_SIZE_SHIFT 24
+#define DMA_MST_CTRL_BURST_SIZE_MASK (7 << DMA_MST_CTRL_BURST_SIZE_SHIFT)
+enum {
+ DMA_MST_CTRL_BURST_1WORDS = 2 << DMA_MST_CTRL_BURST_SIZE_SHIFT,
+ DMA_MST_CTRL_BURST_4WORDS = 3 << DMA_MST_CTRL_BURST_SIZE_SHIFT,
+ DMA_MST_CTRL_BURST_8WORDS = 4 << DMA_MST_CTRL_BURST_SIZE_SHIFT,
+ DMA_MST_CTRL_BURST_16WORDS = 5 << DMA_MST_CTRL_BURST_SIZE_SHIFT
+};
+#define DMA_MST_CTRL_IS_DMA_DONE (1 << 20)
+#define DMA_MST_CTRL_EN_A_MASK (1 << 2)
+#define DMA_MST_CTRL_EN_A_DISABLE 0
+#define DMA_MST_CTRL_EN_A_ENABLE (1 << 2)
+#define DMA_MST_CTRL_EN_B_MASK (1 << 1)
+#define DMA_MST_CTRL_EN_B_DISABLE 0
+#define DMA_MST_CTRL_EN_B_ENABLE (1 << 1)
+
+#define DMA_CFG_A_0 0x34
+#define DMA_CFG_B_0 0x38
+#define FIFO_CTRL_0 0x3C
+#define DATA_BLOCK_PTR_0 0x40
+#define TAG_PTR_0 0x44
+#define ECC_PTR_0 0x48
+
+#define DEC_STATUS_0 0x4C
+#define DEC_STATUS_A_ECC_FAIL (1 << 1)
+#define DEC_STATUS_B_ECC_FAIL (1 << 0)
+
+#define BCH_CONFIG_0 0xCC
+#define BCH_CONFIG_BCH_TVALUE_SHIFT 4
+#define BCH_CONFIG_BCH_TVALUE_MASK (3 << BCH_CONFIG_BCH_TVALUE_SHIFT)
+enum {
+ BCH_CONFIG_BCH_TVAL4 = 0 << BCH_CONFIG_BCH_TVALUE_SHIFT,
+ BCH_CONFIG_BCH_TVAL8 = 1 << BCH_CONFIG_BCH_TVALUE_SHIFT,
+ BCH_CONFIG_BCH_TVAL14 = 2 << BCH_CONFIG_BCH_TVALUE_SHIFT,
+ BCH_CONFIG_BCH_TVAL16 = 3 << BCH_CONFIG_BCH_TVALUE_SHIFT
+};
+#define BCH_CONFIG_BCH_ECC_MASK (1 << 0)
+#define BCH_CONFIG_BCH_ECC_DISABLE 0
+#define BCH_CONFIG_BCH_ECC_ENABLE (1 << 0)
+
+#define BCH_DEC_RESULT_0 0xD0
+#define BCH_DEC_RESULT_CORRFAIL_ERR_MASK (1 << 8)
+#define BCH_DEC_RESULT_PAGE_COUNT_MASK 0xFF
+
+#define BCH_DEC_STATUS_BUF_0 0xD4
+#define BCH_DEC_STATUS_FAIL_SEC_FLAG_MASK 0xFF000000
+#define BCH_DEC_STATUS_CORR_SEC_FLAG_MASK 0x00FF0000
+#define BCH_DEC_STATUS_FAIL_TAG_MASK (1 << 14)
+#define BCH_DEC_STATUS_CORR_TAG_MASK (1 << 13)
+#define BCH_DEC_STATUS_MAX_CORR_CNT_MASK (0x1f << 8)
+#define BCH_DEC_STATUS_PAGE_NUMBER_MASK 0xFF
+
+#define LP_OPTIONS (NAND_NO_READRDY | NAND_NO_AUTOINCR)
+
+struct nand_ctlr {
+ u32 command; /* offset 00h */
+ u32 status; /* offset 04h */
+ u32 isr; /* offset 08h */
+ u32 ier; /* offset 0Ch */
+ u32 config; /* offset 10h */
+ u32 timing; /* offset 14h */
+ u32 resp; /* offset 18h */
+ u32 timing2; /* offset 1Ch */
+ u32 cmd_reg1; /* offset 20h */
+ u32 cmd_reg2; /* offset 24h */
+ u32 addr_reg1; /* offset 28h */
+ u32 addr_reg2; /* offset 2Ch */
+ u32 dma_mst_ctrl; /* offset 30h */
+ u32 dma_cfg_a; /* offset 34h */
+ u32 dma_cfg_b; /* offset 38h */
+ u32 fifo_ctrl; /* offset 3Ch */
+ u32 data_block_ptr; /* offset 40h */
+ u32 tag_ptr; /* offset 44h */
+ u32 resv1; /* offset 48h */
+ u32 dec_status; /* offset 4Ch */
+ u32 hwstatus_cmd; /* offset 50h */
+ u32 hwstatus_mask; /* offset 54h */
+ u32 resv2[29];
+ u32 bch_config; /* offset CCh */
+ u32 bch_dec_result; /* offset D0h */
+ u32 bch_dec_status_buf;
+ /* offset D4h */
+};