driver/mtd/IFC: Add support of 8K page size NAND flash
Current IFC driver supports till 4K page size NAND flash. Add support of 8K Page size NAND flash - Add nand_ecclayout for 4 bit & 8 bit ecc - Defines constants - also fix ecc.strength for 8bit ecc of 8K page size NAND Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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@ -93,6 +93,7 @@
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#define CSOR_NAND_PGS_512 0x00000000
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#define CSOR_NAND_PGS_2K 0x00080000
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#define CSOR_NAND_PGS_4K 0x00100000
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#define CSOR_NAND_PGS_8K 0x00180000
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/* Spare region Size */
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#define CSOR_NAND_SPRZ_MASK 0x0000E000
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#define CSOR_NAND_SPRZ_SHIFT 13
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@ -102,6 +103,7 @@
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#define CSOR_NAND_SPRZ_210 0x00006000
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#define CSOR_NAND_SPRZ_218 0x00008000
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#define CSOR_NAND_SPRZ_224 0x0000A000
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#define CSOR_NAND_SPRZ_CSOR_EXT 0x0000C000
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/* Pages Per Block */
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#define CSOR_NAND_PB_MASK 0x00000700
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#define CSOR_NAND_PB_SHIFT 8
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@ -135,6 +135,69 @@ static struct nand_ecclayout oob_4096_ecc8 = {
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.oobfree = { {2, 6}, {136, 82} },
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};
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/* 8192-byte page size with 4-bit ECC */
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static struct nand_ecclayout oob_8192_ecc4 = {
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.eccbytes = 128,
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.eccpos = {
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8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23,
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24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39,
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40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55,
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56, 57, 58, 59, 60, 61, 62, 63,
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64, 65, 66, 67, 68, 69, 70, 71,
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72, 73, 74, 75, 76, 77, 78, 79,
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80, 81, 82, 83, 84, 85, 86, 87,
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88, 89, 90, 91, 92, 93, 94, 95,
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96, 97, 98, 99, 100, 101, 102, 103,
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104, 105, 106, 107, 108, 109, 110, 111,
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112, 113, 114, 115, 116, 117, 118, 119,
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120, 121, 122, 123, 124, 125, 126, 127,
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128, 129, 130, 131, 132, 133, 134, 135,
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},
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.oobfree = { {2, 6}, {136, 208} },
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};
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/* 8192-byte page size with 8-bit ECC -- requires 218-byte OOB */
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static struct nand_ecclayout oob_8192_ecc8 = {
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.eccbytes = 256,
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.eccpos = {
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8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23,
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24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39,
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40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55,
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56, 57, 58, 59, 60, 61, 62, 63,
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64, 65, 66, 67, 68, 69, 70, 71,
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72, 73, 74, 75, 76, 77, 78, 79,
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80, 81, 82, 83, 84, 85, 86, 87,
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88, 89, 90, 91, 92, 93, 94, 95,
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96, 97, 98, 99, 100, 101, 102, 103,
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104, 105, 106, 107, 108, 109, 110, 111,
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112, 113, 114, 115, 116, 117, 118, 119,
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120, 121, 122, 123, 124, 125, 126, 127,
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128, 129, 130, 131, 132, 133, 134, 135,
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136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151,
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152, 153, 154, 155, 156, 157, 158, 159,
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160, 161, 162, 163, 164, 165, 166, 167,
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168, 169, 170, 171, 172, 173, 174, 175,
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176, 177, 178, 179, 180, 181, 182, 183,
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184, 185, 186, 187, 188, 189, 190, 191,
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192, 193, 194, 195, 196, 197, 198, 199,
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200, 201, 202, 203, 204, 205, 206, 207,
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208, 209, 210, 211, 212, 213, 214, 215,
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216, 217, 218, 219, 220, 221, 222, 223,
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224, 225, 226, 227, 228, 229, 230, 231,
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232, 233, 234, 235, 236, 237, 238, 239,
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240, 241, 242, 243, 244, 245, 246, 247,
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248, 249, 250, 251, 252, 253, 254, 255,
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256, 257, 258, 259, 260, 261, 262, 263,
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},
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.oobfree = { {2, 6}, {264, 80} },
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};
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/*
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* Generic flash bbt descriptors
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@ -870,11 +933,25 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
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} else {
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layout = &oob_4096_ecc8;
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chip->ecc.bytes = 16;
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chip->ecc.strength = 8;
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}
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priv->bufnum_mask = 1;
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break;
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case CSOR_NAND_PGS_8K:
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if ((csor & CSOR_NAND_ECC_MODE_MASK) ==
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CSOR_NAND_ECC_MODE_4) {
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layout = &oob_8192_ecc4;
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} else {
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layout = &oob_8192_ecc8;
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chip->ecc.bytes = 16;
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chip->ecc.strength = 8;
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}
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priv->bufnum_mask = 0;
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break;
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default:
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dev_err(priv->dev, "bad csor %#x: bad page size\n", csor);
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return -ENODEV;
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