Merge branch 'master' of git://git.denx.de/u-boot-nand-flash

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 */