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authorTom Rini <trini@ti.com>2014-03-04 21:23:42 -0500
committerTom Rini <trini@ti.com>2014-03-04 21:23:42 -0500
commite4b87e5b1d026bd010e2ba3abbf89561e8320287 (patch)
tree964bb1f7d7731e3d120e53b67baae199f2d18d48 /include/linux
parent32907339c2f533f1d59362c6100c6a0eeeca4837 (diff)
parent2eda892f00fbcf46143326f72e8ac5b472bd225a (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-nand-flash
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/mtd/omap_elm.h77
-rw-r--r--include/linux/mtd/omap_gpmc.h84
2 files changed, 161 insertions, 0 deletions
diff --git a/include/linux/mtd/omap_elm.h b/include/linux/mtd/omap_elm.h
new file mode 100644
index 0000000..45454ea
--- /dev/null
+++ b/include/linux/mtd/omap_elm.h
@@ -0,0 +1,77 @@
+/*
+ * (C) Copyright 2010-2011 Texas Instruments, <www.ti.com>
+ * Mansoor Ahamed <mansoor.ahamed@ti.com>
+ *
+ * Derived from work done by Rohit Choraria <rohitkc@ti.com> for omap3
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#ifndef __ASM_ARCH_ELM_H
+#define __ASM_ARCH_ELM_H
+/*
+ * ELM Module Registers
+ */
+
+/* ELM registers bit fields */
+#define ELM_SYSCONFIG_SOFTRESET_MASK (0x2)
+#define ELM_SYSCONFIG_SOFTRESET (0x2)
+#define ELM_SYSSTATUS_RESETDONE_MASK (0x1)
+#define ELM_SYSSTATUS_RESETDONE (0x1)
+#define ELM_LOCATION_CONFIG_ECC_BCH_LEVEL_MASK (0x3)
+#define ELM_LOCATION_CONFIG_ECC_SIZE_MASK (0x7FF0000)
+#define ELM_LOCATION_CONFIG_ECC_SIZE_POS (16)
+#define ELM_SYNDROME_FRAGMENT_6_SYNDROME_VALID (0x00010000)
+#define ELM_LOCATION_STATUS_ECC_CORRECTABLE_MASK (0x100)
+#define ELM_LOCATION_STATUS_ECC_NB_ERRORS_MASK (0x1F)
+
+#ifndef __ASSEMBLY__
+
+enum bch_level {
+ BCH_4_BIT = 0,
+ BCH_8_BIT,
+ BCH_16_BIT
+};
+
+
+/* BCH syndrome registers */
+struct syndrome {
+ u32 syndrome_fragment_x[7]; /* 0x400, 0x404.... 0x418 */
+ u8 res1[36]; /* 0x41c */
+};
+
+/* BCH error status & location register */
+struct location {
+ u32 location_status; /* 0x800 */
+ u8 res1[124]; /* 0x804 */
+ u32 error_location_x[16]; /* 0x880.... */
+ u8 res2[64]; /* 0x8c0 */
+};
+
+/* BCH ELM register map - do not try to allocate memmory for this structure.
+ * We have used plenty of reserved variables to fill the slots in the ELM
+ * register memory map.
+ * Directly initialize the struct pointer to ELM base address.
+ */
+struct elm {
+ u32 rev; /* 0x000 */
+ u8 res1[12]; /* 0x004 */
+ u32 sysconfig; /* 0x010 */
+ u32 sysstatus; /* 0x014 */
+ u32 irqstatus; /* 0x018 */
+ u32 irqenable; /* 0x01c */
+ u32 location_config; /* 0x020 */
+ u8 res2[92]; /* 0x024 */
+ u32 page_ctrl; /* 0x080 */
+ u8 res3[892]; /* 0x084 */
+ struct syndrome syndrome_fragments[8]; /* 0x400 */
+ u8 res4[512]; /* 0x600 */
+ struct location error_location[8]; /* 0x800 */
+};
+
+int elm_check_error(u8 *syndrome, u32 nibbles, u32 *error_count,
+ u32 *error_locations);
+int elm_config(enum bch_level level);
+void elm_reset(void);
+void elm_init(void);
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_ARCH_ELM_H */
diff --git a/include/linux/mtd/omap_gpmc.h b/include/linux/mtd/omap_gpmc.h
new file mode 100644
index 0000000..22f6573
--- /dev/null
+++ b/include/linux/mtd/omap_gpmc.h
@@ -0,0 +1,84 @@
+/*
+ * (C) Copyright 2004-2008 Texas Instruments, <www.ti.com>
+ * Rohit Choraria <rohitkc@ti.com>
+ *
+ * (C) Copyright 2013 Andreas Bießmann <andreas.devel@googlemail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#ifndef __ASM_OMAP_GPMC_H
+#define __ASM_OMAP_GPMC_H
+
+#define GPMC_BUF_EMPTY 0
+#define GPMC_BUF_FULL 1
+
+enum omap_ecc {
+ /* 1-bit ECC calculation by Software, Error detection by Software */
+ OMAP_ECC_HAM1_CODE_SW = 1, /* avoid un-initialized int can be 0x0 */
+ /* 1-bit ECC calculation by GPMC, Error detection by Software */
+ /* ECC layout compatible to legacy ROMCODE. */
+ OMAP_ECC_HAM1_CODE_HW,
+ /* 4-bit ECC calculation by GPMC, Error detection by Software */
+ OMAP_ECC_BCH4_CODE_HW_DETECTION_SW,
+ /* 4-bit ECC calculation by GPMC, Error detection by ELM */
+ OMAP_ECC_BCH4_CODE_HW,
+ /* 8-bit ECC calculation by GPMC, Error detection by Software */
+ OMAP_ECC_BCH8_CODE_HW_DETECTION_SW,
+ /* 8-bit ECC calculation by GPMC, Error detection by ELM */
+ OMAP_ECC_BCH8_CODE_HW,
+};
+
+struct gpmc_cs {
+ u32 config1; /* 0x00 */
+ u32 config2; /* 0x04 */
+ u32 config3; /* 0x08 */
+ u32 config4; /* 0x0C */
+ u32 config5; /* 0x10 */
+ u32 config6; /* 0x14 */
+ u32 config7; /* 0x18 */
+ u32 nand_cmd; /* 0x1C */
+ u32 nand_adr; /* 0x20 */
+ u32 nand_dat; /* 0x24 */
+ u8 res[8]; /* blow up to 0x30 byte */
+};
+
+struct bch_res_0_3 {
+ u32 bch_result_x[4];
+};
+
+struct gpmc {
+ u8 res1[0x10];
+ u32 sysconfig; /* 0x10 */
+ u8 res2[0x4];
+ u32 irqstatus; /* 0x18 */
+ u32 irqenable; /* 0x1C */
+ u8 res3[0x20];
+ u32 timeout_control; /* 0x40 */
+ u8 res4[0xC];
+ u32 config; /* 0x50 */
+ u32 status; /* 0x54 */
+ u8 res5[0x8]; /* 0x58 */
+ struct gpmc_cs cs[8]; /* 0x60, 0x90, .. */
+ u8 res6[0x14]; /* 0x1E0 */
+ u32 ecc_config; /* 0x1F4 */
+ u32 ecc_control; /* 0x1F8 */
+ u32 ecc_size_config; /* 0x1FC */
+ u32 ecc1_result; /* 0x200 */
+ u32 ecc2_result; /* 0x204 */
+ u32 ecc3_result; /* 0x208 */
+ u32 ecc4_result; /* 0x20C */
+ u32 ecc5_result; /* 0x210 */
+ u32 ecc6_result; /* 0x214 */
+ u32 ecc7_result; /* 0x218 */
+ u32 ecc8_result; /* 0x21C */
+ u32 ecc9_result; /* 0x220 */
+ u8 res7[12]; /* 0x224 */
+ u32 testmomde_ctrl; /* 0x230 */
+ u8 res8[12]; /* 0x234 */
+ struct bch_res_0_3 bch_result_0_3[2]; /* 0x240 */
+};
+
+/* Used for board specific gpmc initialization */
+extern struct gpmc *gpmc_cfg;
+
+#endif /* __ASM_OMAP_GPMC_H */