am33xx: NAND support

[karo-tx-uboot.git] / arch / arm / include / asm / arch-am33xx / omap_gpmc.h

diff --git a/arch/arm/include/asm/arch-am33xx/omap_gpmc.h b/arch/arm/include/asm/arch-am33xx/omap_gpmc.h
new file mode 100644 (file)
index 0000000..572f9d0
--- /dev/null
+++ b/arch/arm/include/asm/arch-am33xx/omap_gpmc.h
@@ -0,0 +1,120 @@
+/*
+ * (C) Copyright 2004-2008 Texas Instruments, <www.ti.com>
+ * Rohit Choraria <rohitkc@ti.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
+ */
+#ifndef __ASM_ARCH_OMAP_GPMC_H
+#define __ASM_ARCH_OMAP_GPMC_H
+
+#define GPMC_BUF_EMPTY 0
+#define GPMC_BUF_FULL  1
+
+#define ECCCLEAR       (0x1 << 8)
+#define ECCRESULTREG1  (0x1 << 0)
+#define ECCSIZE512BYTE 0xFF
+#define ECCSIZE1       (ECCSIZE512BYTE << 22)
+#define ECCSIZE0       (ECCSIZE512BYTE << 12)
+#define ECCSIZE0SEL    (0x000 << 0)
+
+/* Generic ECC Layouts */
+/* Large Page x8 NAND device Layout */
+#ifdef GPMC_NAND_ECC_LP_x8_LAYOUT
+#define GPMC_NAND_HW_ECC_LAYOUT {\
+       .eccbytes = 12,\
+       .eccpos = {1, 2, 3, 4, 5, 6, 7, 8,\
+               9, 10, 11, 12},\
+       .oobfree = {\
+               {.offset = 13,\
+                .length = 51 } } \
+}
+#endif
+
+/* Large Page x16 NAND device Layout */
+#ifdef GPMC_NAND_ECC_LP_x16_LAYOUT
+#define GPMC_NAND_HW_ECC_LAYOUT {\
+       .eccbytes = 12,\
+       .eccpos = {2, 3, 4, 5, 6, 7, 8, 9,\
+               10, 11, 12, 13},\
+       .oobfree = {\
+               {.offset = 14,\
+                .length = 50 } } \
+}
+#endif
+
+/* Small Page x8 NAND device Layout */
+#ifdef GPMC_NAND_ECC_SP_x8_LAYOUT
+#define GPMC_NAND_HW_ECC_LAYOUT {\
+       .eccbytes = 3,\
+       .eccpos = {1, 2, 3},\
+       .oobfree = {\
+               {.offset = 4,\
+                .length = 12 } } \
+}
+#endif
+
+/* Small Page x16 NAND device Layout */
+#ifdef GPMC_NAND_ECC_SP_x16_LAYOUT
+#define GPMC_NAND_HW_ECC_LAYOUT {\
+       .eccbytes = 3,\
+       .eccpos = {2, 3, 4},\
+       .oobfree = {\
+               {.offset = 5,\
+                .length = 11 } } \
+}
+#endif
+
+#define GPMC_NAND_HW_BCH4_ECC_LAYOUT {\
+       .eccbytes = 32,\
+       .eccpos = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,\
+                               16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,\
+                               28, 29, 30, 31, 32, 33},\
+       .oobfree = {\
+               {.offset = 34,\
+                .length = 30 } } \
+}
+
+#define GPMC_NAND_HW_BCH8_ECC_LAYOUT {\
+       .eccbytes = 56,\
+       .eccpos = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,\
+                               16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,\
+                               28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,\
+                               40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,\
+                               52, 53, 54, 55, 56, 57},\
+       .oobfree = {\
+               {.offset = 58,\
+                .length = 6 } } \
+}
+
+#define GPMC_NAND_HW_BCH16_ECC_LAYOUT {\
+       .eccbytes = 104,\
+       .eccpos = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,\
+                               16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,\
+                               28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,\
+                               40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,\
+                               52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,\
+                               64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75,\
+                               76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87,\
+                               88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99,\
+                               100, 101, 102, 103, 104, 105},\
+       .oobfree = {\
+               {.offset = 106,\
+                .length = 8 } } \
+}
+#endif /* __ASM_ARCH_OMAP_GPMC_H */