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-rw-r--r--arch/arm/boot/dts/imx27.dtsi9
-rw-r--r--arch/arm/mach-ep93xx/snappercl15.c4
-rw-r--r--arch/arm/mach-ep93xx/ts72xx.c3
-rw-r--r--arch/arm/mach-imx/imx27-dt.c1
-rw-r--r--arch/arm/mach-ixp4xx/ixdp425-setup.c4
-rw-r--r--arch/arm/mach-nomadik/board-nhk8815.c2
-rw-r--r--arch/arm/mach-omap1/board-fsample.c3
-rw-r--r--arch/arm/mach-omap1/board-h2.c3
-rw-r--r--arch/arm/mach-omap1/board-h3.c3
-rw-r--r--arch/arm/mach-omap1/board-perseus2.c3
-rw-r--r--arch/arm/mach-omap2/gpmc.c184
-rw-r--r--arch/arm/mach-orion5x/ts78xx-setup.c3
-rw-r--r--arch/arm/mach-pxa/balloon3.c3
-rw-r--r--arch/arm/mach-pxa/em-x270.c3
-rw-r--r--arch/arm/mach-pxa/palmtx.c3
-rw-r--r--arch/arm/plat-omap/include/plat/gpmc.h11
16 files changed, 206 insertions, 36 deletions
diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi
index 2b1a166d41f..386c769c38d 100644
--- a/arch/arm/boot/dts/imx27.dtsi
+++ b/arch/arm/boot/dts/imx27.dtsi
@@ -213,5 +213,14 @@
status = "disabled";
};
};
+ nand@d8000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ compatible = "fsl,imx27-nand";
+ reg = <0xd8000000 0x1000>;
+ interrupts = <29>;
+ status = "disabled";
+ };
};
};
diff --git a/arch/arm/mach-ep93xx/snappercl15.c b/arch/arm/mach-ep93xx/snappercl15.c
index eb282378fa7..01abd3516a7 100644
--- a/arch/arm/mach-ep93xx/snappercl15.c
+++ b/arch/arm/mach-ep93xx/snappercl15.c
@@ -82,8 +82,6 @@ static int snappercl15_nand_dev_ready(struct mtd_info *mtd)
return !!(__raw_readw(NAND_CTRL_ADDR(chip)) & SNAPPERCL15_NAND_RDY);
}
-static const char *snappercl15_nand_part_probes[] = {"cmdlinepart", NULL};
-
static struct mtd_partition snappercl15_nand_parts[] = {
{
.name = "Kernel",
@@ -100,10 +98,8 @@ static struct mtd_partition snappercl15_nand_parts[] = {
static struct platform_nand_data snappercl15_nand_data = {
.chip = {
.nr_chips = 1,
- .part_probe_types = snappercl15_nand_part_probes,
.partitions = snappercl15_nand_parts,
.nr_partitions = ARRAY_SIZE(snappercl15_nand_parts),
- .options = NAND_NO_AUTOINCR,
.chip_delay = 25,
},
.ctrl = {
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index d4ef339d961..75cab2d7ec7 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -105,8 +105,6 @@ static int ts72xx_nand_device_ready(struct mtd_info *mtd)
return !!(__raw_readb(addr) & 0x20);
}
-static const char *ts72xx_nand_part_probes[] = { "cmdlinepart", NULL };
-
#define TS72XX_BOOTROM_PART_SIZE (SZ_16K)
#define TS72XX_REDBOOT_PART_SIZE (SZ_2M + SZ_1M)
@@ -134,7 +132,6 @@ static struct platform_nand_data ts72xx_nand_data = {
.nr_chips = 1,
.chip_offset = 0,
.chip_delay = 15,
- .part_probe_types = ts72xx_nand_part_probes,
.partitions = ts72xx_nand_parts,
.nr_partitions = ARRAY_SIZE(ts72xx_nand_parts),
},
diff --git a/arch/arm/mach-imx/imx27-dt.c b/arch/arm/mach-imx/imx27-dt.c
index ed38d03c61f..eee0cc8d92a 100644
--- a/arch/arm/mach-imx/imx27-dt.c
+++ b/arch/arm/mach-imx/imx27-dt.c
@@ -29,6 +29,7 @@ static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI2_BASE_ADDR, "imx27-cspi.1", NULL),
OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI3_BASE_ADDR, "imx27-cspi.2", NULL),
OF_DEV_AUXDATA("fsl,imx27-wdt", MX27_WDOG_BASE_ADDR, "imx2-wdt.0", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-nand", MX27_NFC_BASE_ADDR, "mxc_nand.0", NULL),
{ /* sentinel */ }
};
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 3d742aee177..108a9d3f382 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -60,8 +60,6 @@ static struct platform_device ixdp425_flash = {
#if defined(CONFIG_MTD_NAND_PLATFORM) || \
defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
-const char *part_probes[] = { "cmdlinepart", NULL };
-
static struct mtd_partition ixdp425_partitions[] = {
{
.name = "ixp400 NAND FS 0",
@@ -100,8 +98,6 @@ static struct platform_nand_data ixdp425_flash_nand_data = {
.chip = {
.nr_chips = 1,
.chip_delay = 30,
- .options = NAND_NO_AUTOINCR,
- .part_probe_types = part_probes,
.partitions = ixdp425_partitions,
.nr_partitions = ARRAY_SIZE(ixdp425_partitions),
},
diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c
index 58cacafcf66..2e8d3e176bc 100644
--- a/arch/arm/mach-nomadik/board-nhk8815.c
+++ b/arch/arm/mach-nomadik/board-nhk8815.c
@@ -111,7 +111,7 @@ static struct nomadik_nand_platform_data nhk8815_nand_data = {
.parts = nhk8815_partitions,
.nparts = ARRAY_SIZE(nhk8815_partitions),
.options = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING \
- | NAND_NO_READRDY | NAND_NO_AUTOINCR,
+ | NAND_NO_READRDY,
.init = nhk8815_nand_init,
};
diff --git a/arch/arm/mach-omap1/board-fsample.c b/arch/arm/mach-omap1/board-fsample.c
index c7364fdbda0..6872f3fd400 100644
--- a/arch/arm/mach-omap1/board-fsample.c
+++ b/arch/arm/mach-omap1/board-fsample.c
@@ -192,14 +192,11 @@ static int nand_dev_ready(struct mtd_info *mtd)
return gpio_get_value(FSAMPLE_NAND_RB_GPIO_PIN);
}
-static const char *part_probes[] = { "cmdlinepart", NULL };
-
static struct platform_nand_data nand_data = {
.chip = {
.nr_chips = 1,
.chip_offset = 0,
.options = NAND_SAMSUNG_LP_OPTIONS,
- .part_probe_types = part_probes,
},
.ctrl = {
.cmd_ctrl = omap1_nand_cmd_ctl,
diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index 7e503686f7a..a28e989a63f 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -186,8 +186,6 @@ static int h2_nand_dev_ready(struct mtd_info *mtd)
return gpio_get_value(H2_NAND_RB_GPIO_PIN);
}
-static const char *h2_part_probes[] = { "cmdlinepart", NULL };
-
static struct platform_nand_data h2_nand_platdata = {
.chip = {
.nr_chips = 1,
@@ -195,7 +193,6 @@ static struct platform_nand_data h2_nand_platdata = {
.nr_partitions = ARRAY_SIZE(h2_nand_partitions),
.partitions = h2_nand_partitions,
.options = NAND_SAMSUNG_LP_OPTIONS,
- .part_probe_types = h2_part_probes,
},
.ctrl = {
.cmd_ctrl = omap1_nand_cmd_ctl,
diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
index 9fb03f189d9..108a8640fc6 100644
--- a/arch/arm/mach-omap1/board-h3.c
+++ b/arch/arm/mach-omap1/board-h3.c
@@ -188,8 +188,6 @@ static int nand_dev_ready(struct mtd_info *mtd)
return gpio_get_value(H3_NAND_RB_GPIO_PIN);
}
-static const char *part_probes[] = { "cmdlinepart", NULL };
-
static struct platform_nand_data nand_platdata = {
.chip = {
.nr_chips = 1,
@@ -197,7 +195,6 @@ static struct platform_nand_data nand_platdata = {
.nr_partitions = ARRAY_SIZE(nand_partitions),
.partitions = nand_partitions,
.options = NAND_SAMSUNG_LP_OPTIONS,
- .part_probe_types = part_probes,
},
.ctrl = {
.cmd_ctrl = omap1_nand_cmd_ctl,
diff --git a/arch/arm/mach-omap1/board-perseus2.c b/arch/arm/mach-omap1/board-perseus2.c
index f2cb24387c2..703d55ecffe 100644
--- a/arch/arm/mach-omap1/board-perseus2.c
+++ b/arch/arm/mach-omap1/board-perseus2.c
@@ -150,14 +150,11 @@ static int nand_dev_ready(struct mtd_info *mtd)
return gpio_get_value(P2_NAND_RB_GPIO_PIN);
}
-static const char *part_probes[] = { "cmdlinepart", NULL };
-
static struct platform_nand_data nand_data = {
.chip = {
.nr_chips = 1,
.chip_offset = 0,
.options = NAND_SAMSUNG_LP_OPTIONS,
- .part_probe_types = part_probes,
},
.ctrl = {
.cmd_ctrl = omap1_nand_cmd_ctl,
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 46b09dae770..2286410671e 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -49,6 +49,7 @@
#define GPMC_ECC_CONTROL 0x1f8
#define GPMC_ECC_SIZE_CONFIG 0x1fc
#define GPMC_ECC1_RESULT 0x200
+#define GPMC_ECC_BCH_RESULT_0 0x240 /* not available on OMAP2 */
/* GPMC ECC control settings */
#define GPMC_ECC_CTRL_ECCCLEAR 0x100
@@ -935,3 +936,186 @@ int gpmc_calculate_ecc(int cs, const u_char *dat, u_char *ecc_code)
return 0;
}
EXPORT_SYMBOL_GPL(gpmc_calculate_ecc);
+
+#ifdef CONFIG_ARCH_OMAP3
+
+/**
+ * gpmc_init_hwecc_bch - initialize hardware BCH ecc functionality
+ * @cs: chip select number
+ * @nsectors: how many 512-byte sectors to process
+ * @nerrors: how many errors to correct per sector (4 or 8)
+ *
+ * This function must be executed before any call to gpmc_enable_hwecc_bch.
+ */
+int gpmc_init_hwecc_bch(int cs, int nsectors, int nerrors)
+{
+ /* check if ecc module is in use */
+ if (gpmc_ecc_used != -EINVAL)
+ return -EINVAL;
+
+ /* support only OMAP3 class */
+ if (!cpu_is_omap34xx()) {
+ printk(KERN_ERR "BCH ecc is not supported on this CPU\n");
+ return -EINVAL;
+ }
+
+ /*
+ * For now, assume 4-bit mode is only supported on OMAP3630 ES1.x, x>=1.
+ * Other chips may be added if confirmed to work.
+ */
+ if ((nerrors == 4) &&
+ (!cpu_is_omap3630() || (GET_OMAP_REVISION() == 0))) {
+ printk(KERN_ERR "BCH 4-bit mode is not supported on this CPU\n");
+ return -EINVAL;
+ }
+
+ /* sanity check */
+ if (nsectors > 8) {
+ printk(KERN_ERR "BCH cannot process %d sectors (max is 8)\n",
+ nsectors);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(gpmc_init_hwecc_bch);
+
+/**
+ * gpmc_enable_hwecc_bch - enable hardware BCH ecc functionality
+ * @cs: chip select number
+ * @mode: read/write mode
+ * @dev_width: device bus width(1 for x16, 0 for x8)
+ * @nsectors: how many 512-byte sectors to process
+ * @nerrors: how many errors to correct per sector (4 or 8)
+ */
+int gpmc_enable_hwecc_bch(int cs, int mode, int dev_width, int nsectors,
+ int nerrors)
+{
+ unsigned int val;
+
+ /* check if ecc module is in use */
+ if (gpmc_ecc_used != -EINVAL)
+ return -EINVAL;
+
+ gpmc_ecc_used = cs;
+
+ /* clear ecc and enable bits */
+ gpmc_write_reg(GPMC_ECC_CONTROL, 0x1);
+
+ /*
+ * When using BCH, sector size is hardcoded to 512 bytes.
+ * Here we are using wrapping mode 6 both for reading and writing, with:
+ * size0 = 0 (no additional protected byte in spare area)
+ * size1 = 32 (skip 32 nibbles = 16 bytes per sector in spare area)
+ */
+ gpmc_write_reg(GPMC_ECC_SIZE_CONFIG, (32 << 22) | (0 << 12));
+
+ /* BCH configuration */
+ val = ((1 << 16) | /* enable BCH */
+ (((nerrors == 8) ? 1 : 0) << 12) | /* 8 or 4 bits */
+ (0x06 << 8) | /* wrap mode = 6 */
+ (dev_width << 7) | /* bus width */
+ (((nsectors-1) & 0x7) << 4) | /* number of sectors */
+ (cs << 1) | /* ECC CS */
+ (0x1)); /* enable ECC */
+
+ gpmc_write_reg(GPMC_ECC_CONFIG, val);
+ gpmc_write_reg(GPMC_ECC_CONTROL, 0x101);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(gpmc_enable_hwecc_bch);
+
+/**
+ * gpmc_calculate_ecc_bch4 - Generate 7 ecc bytes per sector of 512 data bytes
+ * @cs: chip select number
+ * @dat: The pointer to data on which ecc is computed
+ * @ecc: The ecc output buffer
+ */
+int gpmc_calculate_ecc_bch4(int cs, const u_char *dat, u_char *ecc)
+{
+ int i;
+ unsigned long nsectors, reg, val1, val2;
+
+ if (gpmc_ecc_used != cs)
+ return -EINVAL;
+
+ nsectors = ((gpmc_read_reg(GPMC_ECC_CONFIG) >> 4) & 0x7) + 1;
+
+ for (i = 0; i < nsectors; i++) {
+
+ reg = GPMC_ECC_BCH_RESULT_0 + 16*i;
+
+ /* Read hw-computed remainder */
+ val1 = gpmc_read_reg(reg + 0);
+ val2 = gpmc_read_reg(reg + 4);
+
+ /*
+ * Add constant polynomial to remainder, in order to get an ecc
+ * sequence of 0xFFs for a buffer filled with 0xFFs; and
+ * left-justify the resulting polynomial.
+ */
+ *ecc++ = 0x28 ^ ((val2 >> 12) & 0xFF);
+ *ecc++ = 0x13 ^ ((val2 >> 4) & 0xFF);
+ *ecc++ = 0xcc ^ (((val2 & 0xF) << 4)|((val1 >> 28) & 0xF));
+ *ecc++ = 0x39 ^ ((val1 >> 20) & 0xFF);
+ *ecc++ = 0x96 ^ ((val1 >> 12) & 0xFF);
+ *ecc++ = 0xac ^ ((val1 >> 4) & 0xFF);
+ *ecc++ = 0x7f ^ ((val1 & 0xF) << 4);
+ }
+
+ gpmc_ecc_used = -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(gpmc_calculate_ecc_bch4);
+
+/**
+ * gpmc_calculate_ecc_bch8 - Generate 13 ecc bytes per block of 512 data bytes
+ * @cs: chip select number
+ * @dat: The pointer to data on which ecc is computed
+ * @ecc: The ecc output buffer
+ */
+int gpmc_calculate_ecc_bch8(int cs, const u_char *dat, u_char *ecc)
+{
+ int i;
+ unsigned long nsectors, reg, val1, val2, val3, val4;
+
+ if (gpmc_ecc_used != cs)
+ return -EINVAL;
+
+ nsectors = ((gpmc_read_reg(GPMC_ECC_CONFIG) >> 4) & 0x7) + 1;
+
+ for (i = 0; i < nsectors; i++) {
+
+ reg = GPMC_ECC_BCH_RESULT_0 + 16*i;
+
+ /* Read hw-computed remainder */
+ val1 = gpmc_read_reg(reg + 0);
+ val2 = gpmc_read_reg(reg + 4);
+ val3 = gpmc_read_reg(reg + 8);
+ val4 = gpmc_read_reg(reg + 12);
+
+ /*
+ * Add constant polynomial to remainder, in order to get an ecc
+ * sequence of 0xFFs for a buffer filled with 0xFFs.
+ */
+ *ecc++ = 0xef ^ (val4 & 0xFF);
+ *ecc++ = 0x51 ^ ((val3 >> 24) & 0xFF);
+ *ecc++ = 0x2e ^ ((val3 >> 16) & 0xFF);
+ *ecc++ = 0x09 ^ ((val3 >> 8) & 0xFF);
+ *ecc++ = 0xed ^ (val3 & 0xFF);
+ *ecc++ = 0x93 ^ ((val2 >> 24) & 0xFF);
+ *ecc++ = 0x9a ^ ((val2 >> 16) & 0xFF);
+ *ecc++ = 0xc2 ^ ((val2 >> 8) & 0xFF);
+ *ecc++ = 0x97 ^ (val2 & 0xFF);
+ *ecc++ = 0x79 ^ ((val1 >> 24) & 0xFF);
+ *ecc++ = 0xe5 ^ ((val1 >> 16) & 0xFF);
+ *ecc++ = 0x24 ^ ((val1 >> 8) & 0xFF);
+ *ecc++ = 0xb5 ^ (val1 & 0xFF);
+ }
+
+ gpmc_ecc_used = -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(gpmc_calculate_ecc_bch8);
+
+#endif /* CONFIG_ARCH_OMAP3 */
diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c
index a74f3cf54cc..b4203277f3c 100644
--- a/arch/arm/mach-orion5x/ts78xx-setup.c
+++ b/arch/arm/mach-orion5x/ts78xx-setup.c
@@ -251,8 +251,6 @@ static void ts78xx_ts_nand_read_buf(struct mtd_info *mtd,
readsb(io_base, buf, len);
}
-const char *ts_nand_part_probes[] = { "cmdlinepart", NULL };
-
static struct mtd_partition ts78xx_ts_nand_parts[] = {
{
.name = "mbr",
@@ -277,7 +275,6 @@ static struct mtd_partition ts78xx_ts_nand_parts[] = {
static struct platform_nand_data ts78xx_ts_nand_data = {
.chip = {
.nr_chips = 1,
- .part_probe_types = ts_nand_part_probes,
.partitions = ts78xx_ts_nand_parts,
.nr_partitions = ARRAY_SIZE(ts78xx_ts_nand_parts),
.chip_delay = 15,
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index 56e8cebeb7d..9244493dbcb 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -679,8 +679,6 @@ static struct mtd_partition balloon3_partition_info[] = {
},
};
-static const char *balloon3_part_probes[] = { "cmdlinepart", NULL };
-
struct platform_nand_data balloon3_nand_pdata = {
.chip = {
.nr_chips = 4,
@@ -688,7 +686,6 @@ struct platform_nand_data balloon3_nand_pdata = {
.nr_partitions = ARRAY_SIZE(balloon3_partition_info),
.partitions = balloon3_partition_info,
.chip_delay = 50,
- .part_probe_types = balloon3_part_probes,
},
.ctrl = {
.hwcontrol = 0,
diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c
index a3a4a38d497..97f82ad341b 100644
--- a/arch/arm/mach-pxa/em-x270.c
+++ b/arch/arm/mach-pxa/em-x270.c
@@ -338,8 +338,6 @@ static struct mtd_partition em_x270_partition_info[] = {
},
};
-static const char *em_x270_part_probes[] = { "cmdlinepart", NULL };
-
struct platform_nand_data em_x270_nand_platdata = {
.chip = {
.nr_chips = 1,
@@ -347,7 +345,6 @@ struct platform_nand_data em_x270_nand_platdata = {
.nr_partitions = ARRAY_SIZE(em_x270_partition_info),
.partitions = em_x270_partition_info,
.chip_delay = 20,
- .part_probe_types = em_x270_part_probes,
},
.ctrl = {
.hwcontrol = 0,
diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c
index 9507605ed54..0da35dccfd8 100644
--- a/arch/arm/mach-pxa/palmtx.c
+++ b/arch/arm/mach-pxa/palmtx.c
@@ -268,8 +268,6 @@ static struct mtd_partition palmtx_partition_info[] = {
},
};
-static const char *palmtx_part_probes[] = { "cmdlinepart", NULL };
-
struct platform_nand_data palmtx_nand_platdata = {
.chip = {
.nr_chips = 1,
@@ -277,7 +275,6 @@ struct platform_nand_data palmtx_nand_platdata = {
.nr_partitions = ARRAY_SIZE(palmtx_partition_info),
.partitions = palmtx_partition_info,
.chip_delay = 20,
- .part_probe_types = palmtx_part_probes,
},
.ctrl = {
.cmd_ctrl = palmtx_nand_cmd_ctl,
diff --git a/arch/arm/plat-omap/include/plat/gpmc.h b/arch/arm/plat-omap/include/plat/gpmc.h
index 1527929b445..f37764a3607 100644
--- a/arch/arm/plat-omap/include/plat/gpmc.h
+++ b/arch/arm/plat-omap/include/plat/gpmc.h
@@ -92,6 +92,8 @@ enum omap_ecc {
OMAP_ECC_HAMMING_CODE_HW, /* gpmc to detect the error */
/* 1-bit ecc: stored at beginning of spare area as romcode */
OMAP_ECC_HAMMING_CODE_HW_ROMCODE, /* gpmc method & romcode layout */
+ OMAP_ECC_BCH4_CODE_HW, /* 4-bit BCH ecc code */
+ OMAP_ECC_BCH8_CODE_HW, /* 8-bit BCH ecc code */
};
/*
@@ -157,4 +159,13 @@ extern int gpmc_nand_write(int cs, int cmd, int wval);
int gpmc_enable_hwecc(int cs, int mode, int dev_width, int ecc_size);
int gpmc_calculate_ecc(int cs, const u_char *dat, u_char *ecc_code);
+
+#ifdef CONFIG_ARCH_OMAP3
+int gpmc_init_hwecc_bch(int cs, int nsectors, int nerrors);
+int gpmc_enable_hwecc_bch(int cs, int mode, int dev_width, int nsectors,
+ int nerrors);
+int gpmc_calculate_ecc_bch4(int cs, const u_char *dat, u_char *ecc);
+int gpmc_calculate_ecc_bch8(int cs, const u_char *dat, u_char *ecc);
+#endif /* CONFIG_ARCH_OMAP3 */
+
#endif
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