#define NFC_CTL_EN (1 << 0)
#define NFC_CTL_RESET (1 << 1)
#define NFC_CTL_RAM_METHOD (1 << 14)
+#define NFC_CTL_PAGE_SIZE_MASK (0xf << 8)
+#define NFC_CTL_PAGE_SIZE(a) ((fls(a) - 11) << 8)
#define NFC_ECC_EN (1 << 0)
int syndrome, uint32_t *ecc_errors)
{
uint32_t val;
- int ecc_off = 0;
+ int i, ecc_off = 0;
uint16_t ecc_mode = 0;
uint16_t rand_seed;
uint32_t page;
uint16_t column;
uint32_t oob_offset;
+ static const u8 strengths[] = { 16, 24, 28, 32, 40, 48, 56, 60, 64 };
- switch (CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH) {
- case 16:
- ecc_mode = 0;
- ecc_off = 0x20;
- break;
- case 24:
- ecc_mode = 1;
- ecc_off = 0x2e;
- break;
- case 28:
- ecc_mode = 2;
- ecc_off = 0x32;
- break;
- case 32:
- ecc_mode = 3;
- ecc_off = 0x3c;
- break;
- case 40:
- ecc_mode = 4;
- ecc_off = 0x4a;
- break;
- case 48:
- ecc_mode = 4;
- ecc_off = 0x52;
- break;
- case 56:
- ecc_mode = 4;
- ecc_off = 0x60;
- break;
- case 60:
- ecc_mode = 4;
- ecc_off = 0x0;
- break;
- case 64:
- ecc_mode = 4;
- ecc_off = 0x0;
- break;
- default:
- ecc_mode = 0;
- ecc_off = 0;
+ for (i = 0; i < ARRAY_SIZE(strengths); i++) {
+ if (CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH == strengths[i]) {
+ ecc_mode = i;
+ break;
+ }
}
- if (ecc_off == 0) {
- printf("Unsupported ECC strength (%d)!\n",
- CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH);
- return;
- }
+ /* HW ECC always request ECC bytes for 1024 bytes blocks */
+ ecc_off = DIV_ROUND_UP(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH * fls(8 * 1024), 8);
+ /* HW ECC always work with even numbers of ECC bytes */
+ ecc_off += (ecc_off & 1);
+ ecc_off += 4; /* prepad */
page = real_addr / CONFIG_NAND_SUNXI_SPL_PAGE_SIZE;
column = real_addr % CONFIG_NAND_SUNXI_SPL_PAGE_SIZE;
writel(oob_offset, SUNXI_NFC_BASE + NFC_SPARE_AREA);
}
+ flush_dcache_range(dst,
+ ALIGN(dst + CONFIG_NAND_SUNXI_SPL_ECC_PAGE_SIZE,
+ ARCH_DMA_MINALIGN));
+
/* SUNXI_DMA */
writel(0x0, SUNXI_DMA_BASE + SUNXI_DMA_CFG_REG0); /* clr dma cmd */
/* read from REG_IO_DATA */
return;
}
+ invalidate_dcache_range(dst,
+ ALIGN(dst + CONFIG_NAND_SUNXI_SPL_ECC_PAGE_SIZE,
+ ARCH_DMA_MINALIGN));
+
if (readl(SUNXI_NFC_BASE + NFC_ECC_ST))
(*ecc_errors)++;
}
void *current_dest;
uint32_t ecc_errors = 0;
+ clrsetbits_le32(SUNXI_NFC_BASE + NFC_CTL, NFC_CTL_PAGE_SIZE_MASK,
+ NFC_CTL_PAGE_SIZE(CONFIG_NAND_SUNXI_SPL_PAGE_SIZE));
+
for (current_dest = dest;
current_dest < (dest + size);
current_dest += CONFIG_NAND_SUNXI_SPL_ECC_PAGE_SIZE) {