- uint32_t val;
- int i, ecc_off = 0;
- uint16_t ecc_mode = 0;
- uint16_t rand_seed;
- uint32_t page;
- uint16_t column;
- static const u8 strengths[] = { 16, 24, 28, 32, 40, 48, 56, 60, 64 };
-
- for (i = 0; i < ARRAY_SIZE(strengths); i++) {
- if (ecc_strength == strengths[i]) {
- ecc_mode = i;
- break;
- }
+ u32 val;
+
+ val = readl(SUNXI_NFC_BASE + NFC_CTL);
+ val &= ~NFC_CTL_PAGE_SIZE_MASK;
+ writel(val | NFC_CTL_RAM_METHOD | NFC_CTL_PAGE_SIZE(conf->page_size),
+ SUNXI_NFC_BASE + NFC_CTL);
+ writel(conf->ecc_size, SUNXI_NFC_BASE + NFC_CNT);
+ writel(conf->page_size, SUNXI_NFC_BASE + NFC_SPARE_AREA);
+}
+
+static int nand_load_page(const struct nfc_config *conf, u32 offs)
+{
+ int page = offs / conf->page_size;
+
+ writel((NFC_CMD_RNDOUTSTART << NFC_RANDOM_READ_CMD1_OFFSET) |
+ (NFC_CMD_RNDOUT << NFC_RANDOM_READ_CMD0_OFFSET) |
+ (NFC_CMD_READSTART << NFC_READ_CMD_OFFSET),
+ SUNXI_NFC_BASE + NFC_RCMD_SET);
+ writel(((page & 0xFFFF) << 16), SUNXI_NFC_BASE + NFC_ADDR_LOW);
+ writel((page >> 16) & 0xFF, SUNXI_NFC_BASE + NFC_ADDR_HIGH);
+ writel(NFC_ST_CMD_INT_FLAG, SUNXI_NFC_BASE + NFC_ST);
+ writel(NFC_SEND_CMD1 | NFC_SEND_CMD2 | NFC_RAW_CMD | NFC_WAIT_FLAG |
+ ((conf->addr_cycles - 1) << NFC_ADDR_NUM_OFFSET) | NFC_SEND_ADR,
+ SUNXI_NFC_BASE + NFC_CMD);
+
+ if (!check_value(SUNXI_NFC_BASE + NFC_ST, NFC_ST_CMD_INT_FLAG,
+ DEFAULT_TIMEOUT_US)) {
+ printf("Error while initializing dma interrupt\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int nand_reset_column(void)
+{
+ writel((NFC_CMD_RNDOUTSTART << NFC_RANDOM_READ_CMD1_OFFSET) |
+ (NFC_CMD_RNDOUT << NFC_RANDOM_READ_CMD0_OFFSET) |
+ (NFC_CMD_RNDOUTSTART << NFC_READ_CMD_OFFSET),
+ SUNXI_NFC_BASE + NFC_RCMD_SET);
+ writel(0, SUNXI_NFC_BASE + NFC_ADDR_LOW);
+ writel(NFC_SEND_CMD1 | NFC_SEND_CMD2 | NFC_RAW_CMD |
+ (1 << NFC_ADDR_NUM_OFFSET) | NFC_SEND_ADR | NFC_CMD_RNDOUT,
+ SUNXI_NFC_BASE + NFC_CMD);
+
+ if (!check_value(SUNXI_NFC_BASE + NFC_ST, NFC_ST_CMD_INT_FLAG,
+ DEFAULT_TIMEOUT_US)) {
+ printf("Error while initializing dma interrupt\n");
+ return -1;