mtd/ifc: Add support of 8K page size NAND flash

Current IFC driver supports till 4K page size NAND flash.
Add support of 8K NAND flash
  - Program Spare region size in csor_ext
  - Add nand_ecclayout for 4 bit & 8 bit ecc
  - Defines constants
  - Add support of 8K NAND boot.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
CC: Liu Po <po.liu@freescale.com>

arch/powerpc/cpu/mpc8xxx/fsl_ifc.c

@@ -33,6 +33,9 @@ void init_early_memctl_regs(void)
 #ifndef CONFIG_A003399_NOR_WORKAROUND
 #ifdef CONFIG_SYS_CSPR0_EXT
 	set_ifc_cspr_ext(IFC_CS0, CONFIG_SYS_CSPR0_EXT);
+#endif
+#ifdef CONFIG_SYS_CSOR0_EXT
+	set_ifc_csor_ext(IFC_CS0, CONFIG_SYS_CSOR0_EXT);
 #endif
 	set_ifc_cspr(IFC_CS0, CONFIG_SYS_CSPR0);
 	set_ifc_amask(IFC_CS0, CONFIG_SYS_AMASK0);
@@ -43,6 +46,9 @@ void init_early_memctl_regs(void)
 #ifdef CONFIG_SYS_CSPR1_EXT
 	set_ifc_cspr_ext(IFC_CS1, CONFIG_SYS_CSPR1_EXT);
 #endif
+#ifdef CONFIG_SYS_CSOR1_EXT
+	set_ifc_csor_ext(IFC_CS1, CONFIG_SYS_CSOR1_EXT);
+#endif
 #if defined(CONFIG_SYS_CSPR1) && defined(CONFIG_SYS_CSOR1)
 	set_ifc_ftim(IFC_CS1, IFC_FTIM0, CONFIG_SYS_CS1_FTIM0);
 	set_ifc_ftim(IFC_CS1, IFC_FTIM1, CONFIG_SYS_CS1_FTIM1);
@@ -57,6 +63,9 @@ void init_early_memctl_regs(void)
 #ifdef CONFIG_SYS_CSPR2_EXT
 	set_ifc_cspr_ext(IFC_CS2, CONFIG_SYS_CSPR2_EXT);
 #endif
+#ifdef CONFIG_SYS_CSOR2_EXT
+	set_ifc_csor_ext(IFC_CS2, CONFIG_SYS_CSOR2_EXT);
+#endif
 #if defined(CONFIG_SYS_CSPR2) && defined(CONFIG_SYS_CSOR2)
 	set_ifc_ftim(IFC_CS2, IFC_FTIM0, CONFIG_SYS_CS2_FTIM0);
 	set_ifc_ftim(IFC_CS2, IFC_FTIM1, CONFIG_SYS_CS2_FTIM1);
@@ -71,6 +80,9 @@ void init_early_memctl_regs(void)
 #ifdef CONFIG_SYS_CSPR3_EXT
 	set_ifc_cspr_ext(IFC_CS3, CONFIG_SYS_CSPR3_EXT);
 #endif
+#ifdef CONFIG_SYS_CSOR3_EXT
+	set_ifc_csor_ext(IFC_CS3, CONFIG_SYS_CSOR3_EXT);
+#endif
 #if defined(CONFIG_SYS_CSPR3) && defined(CONFIG_SYS_CSOR3)
 	set_ifc_ftim(IFC_CS3, IFC_FTIM0, CONFIG_SYS_CS3_FTIM0);
 	set_ifc_ftim(IFC_CS3, IFC_FTIM1, CONFIG_SYS_CS3_FTIM1);
@@ -85,6 +97,9 @@ void init_early_memctl_regs(void)
 #ifdef CONFIG_SYS_CSPR4_EXT
 	set_ifc_cspr_ext(IFC_CS4, CONFIG_SYS_CSPR4_EXT);
 #endif
+#ifdef CONFIG_SYS_CSOR4_EXT
+	set_ifc_csor_ext(IFC_CS4, CONFIG_SYS_CSOR4_EXT);
+#endif
 #if defined(CONFIG_SYS_CSPR4) && defined(CONFIG_SYS_CSOR4)
 	set_ifc_ftim(IFC_CS4, IFC_FTIM0, CONFIG_SYS_CS4_FTIM0);
 	set_ifc_ftim(IFC_CS4, IFC_FTIM1, CONFIG_SYS_CS4_FTIM1);
@@ -99,6 +114,9 @@ void init_early_memctl_regs(void)
 #ifdef CONFIG_SYS_CSPR5_EXT
 	set_ifc_cspr_ext(IFC_CS5, CONFIG_SYS_CSPR5_EXT);
 #endif
+#ifdef CONFIG_SYS_CSOR5_EXT
+	set_ifc_csor_ext(IFC_CS5, CONFIG_SYS_CSOR5_EXT);
+#endif
 #if defined(CONFIG_SYS_CSPR5) && defined(CONFIG_SYS_CSOR5)
 	set_ifc_ftim(IFC_CS5, IFC_FTIM0, CONFIG_SYS_CS5_FTIM0);
 	set_ifc_ftim(IFC_CS5, IFC_FTIM1, CONFIG_SYS_CS5_FTIM1);
@@ -113,6 +131,9 @@ void init_early_memctl_regs(void)
 #ifdef CONFIG_SYS_CSPR6_EXT
 	set_ifc_cspr_ext(IFC_CS6, CONFIG_SYS_CSPR6_EXT);
 #endif
+#ifdef CONFIG_SYS_CSOR6_EXT
+	set_ifc_csor_ext(IFC_CS6, CONFIG_SYS_CSOR6_EXT);
+#endif
 #if defined(CONFIG_SYS_CSPR6) && defined(CONFIG_SYS_CSOR6)
 	set_ifc_ftim(IFC_CS6, IFC_FTIM0, CONFIG_SYS_CS6_FTIM0);
 	set_ifc_ftim(IFC_CS6, IFC_FTIM1, CONFIG_SYS_CS6_FTIM1);
@@ -127,6 +148,9 @@ void init_early_memctl_regs(void)
 #ifdef CONFIG_SYS_CSPR7_EXT
 	set_ifc_cspr_ext(IFC_CS7, CONFIG_SYS_CSPR7_EXT);
 #endif
+#ifdef CONFIG_SYS_CSOR7_EXT
+	set_ifc_csor_ext(IFC_CS7, CONFIG_SYS_CSOR7_EXT);
+#endif
 #if defined(CONFIG_SYS_CSPR7) && defined(CONFIG_SYS_CSOR7)
 	set_ifc_ftim(IFC_CS7, IFC_FTIM0, CONFIG_SYS_CS7_FTIM0);
 	set_ifc_ftim(IFC_CS7, IFC_FTIM1, CONFIG_SYS_CS7_FTIM1);

arch/powerpc/include/asm/fsl_ifc.h

@@ -77,6 +77,7 @@
 #define CSOR_NAND_PGS_512		0x00000000
 #define CSOR_NAND_PGS_2K		0x00080000
 #define CSOR_NAND_PGS_4K		0x00100000
+#define CSOR_NAND_PGS_8K		0x00180000
 /* Spare region Size */
 #define CSOR_NAND_SPRZ_MASK		0x0000E000
 #define CSOR_NAND_SPRZ_SHIFT		13
@@ -86,6 +87,7 @@
 #define CSOR_NAND_SPRZ_210		0x00006000
 #define CSOR_NAND_SPRZ_218		0x00008000
 #define CSOR_NAND_SPRZ_224		0x0000A000
+#define CSOR_NAND_SPRZ_CSOR_EXT	0x0000C000
 /* Pages Per Block */
 #define CSOR_NAND_PB_MASK		0x00000700
 #define CSOR_NAND_PB_SHIFT		8

drivers/mtd/nand/fsl_ifc_nand.c

@@ -125,6 +125,69 @@ static struct nand_ecclayout oob_4096_ecc8 = {
 	.oobfree = { {2, 6}, {136, 82} },
 };
 
+/* 8192-byte page size with 4-bit ECC */
+static struct nand_ecclayout oob_8192_ecc4 = {
+	.eccbytes = 128,
+	.eccpos = {
+		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, 106, 107, 108, 109, 110, 111,
+		112, 113, 114, 115, 116, 117, 118, 119,
+		120, 121, 122, 123, 124, 125, 126, 127,
+		128, 129, 130, 131, 132, 133, 134, 135,
+	},
+	.oobfree = { {2, 6}, {136, 208} },
+};
+
+/* 8192-byte page size with 8-bit ECC -- requires 218-byte OOB */
+static struct nand_ecclayout oob_8192_ecc8 = {
+	.eccbytes = 256,
+	.eccpos = {
+		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, 106, 107, 108, 109, 110, 111,
+		112, 113, 114, 115, 116, 117, 118, 119,
+		120, 121, 122, 123, 124, 125, 126, 127,
+		128, 129, 130, 131, 132, 133, 134, 135,
+		136, 137, 138, 139, 140, 141, 142, 143,
+		144, 145, 146, 147, 148, 149, 150, 151,
+		152, 153, 154, 155, 156, 157, 158, 159,
+		160, 161, 162, 163, 164, 165, 166, 167,
+		168, 169, 170, 171, 172, 173, 174, 175,
+		176, 177, 178, 179, 180, 181, 182, 183,
+		184, 185, 186, 187, 188, 189, 190, 191,
+		192, 193, 194, 195, 196, 197, 198, 199,
+		200, 201, 202, 203, 204, 205, 206, 207,
+		208, 209, 210, 211, 212, 213, 214, 215,
+		216, 217, 218, 219, 220, 221, 222, 223,
+		224, 225, 226, 227, 228, 229, 230, 231,
+		232, 233, 234, 235, 236, 237, 238, 239,
+		240, 241, 242, 243, 244, 245, 246, 247,
+		248, 249, 250, 251, 252, 253, 254, 255,
+		256, 257, 258, 259, 260, 261, 262, 263,
+	},
+	.oobfree = { {2, 6}, {264, 80} },
+};
 
 /*
  * Generic flash bbt descriptors
@@ -913,6 +976,21 @@ static int fsl_ifc_chip_init(int devnum, u8 *addr)
 		priv->bufnum_mask = 1;
 		break;
 
+	case CSOR_NAND_PGS_8K:
+		if ((csor & CSOR_NAND_ECC_MODE_MASK) ==
+		    CSOR_NAND_ECC_MODE_4) {
+			layout = &oob_8192_ecc4;
+			nand->ecc.strength = 4;
+		} else {
+			layout = &oob_8192_ecc8;
+			nand->ecc.strength = 8;
+			nand->ecc.bytes = 16;
+		}
+
+		priv->bufnum_mask = 0;
+		break;
+
+
 	default:
 		printf("ifc nand: bad csor %#x: bad page size\n", csor);
 		return -ENODEV;

drivers/mtd/nand/fsl_ifc_spl.c

@@ -112,10 +112,13 @@ static void nand_load(unsigned int offs, int uboot_size, uchar *dst)
 
 	port_size = (cspr & CSPR_PORT_SIZE_16) ? 16 : 8;
 
-	if (csor & CSOR_NAND_PGS_4K) {
+	if ((csor & CSOR_NAND_PGS_MASK) == CSOR_NAND_PGS_8K) {
+		page_size = 8192;
+		bufnum_mask = 0x0;
+	} else if ((csor & CSOR_NAND_PGS_MASK) == CSOR_NAND_PGS_4K) {
 		page_size = 4096;
 		bufnum_mask = 0x1;
-	} else if (csor & CSOR_NAND_PGS_2K) {
+	} else if ((csor & CSOR_NAND_PGS_MASK) == CSOR_NAND_PGS_2K) {
 		page_size = 2048;
 		bufnum_mask = 0x3;
 	} else {