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ARM: OMAP2+: gpmc: nand register helper bch update
Update helper function that provides gpmc-nand register details for nand driver with bch register information. Using this nand driver can be made self sufficient to handle remaining gpmc-nand operations by itself instead of relying on gpmc exported nand functions. Signed-off-by: Afzal Mohammed <afzal@ti.com>
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@ -61,6 +61,9 @@
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#define GPMC_ECC_SIZE_CONFIG 0x1fc
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#define GPMC_ECC1_RESULT 0x200
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#define GPMC_ECC_BCH_RESULT_0 0x240 /* not available on OMAP2 */
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#define GPMC_ECC_BCH_RESULT_1 0x244 /* not available on OMAP2 */
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#define GPMC_ECC_BCH_RESULT_2 0x248 /* not available on OMAP2 */
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#define GPMC_ECC_BCH_RESULT_3 0x24c /* not available on OMAP2 */
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/* GPMC ECC control settings */
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#define GPMC_ECC_CTRL_ECCCLEAR 0x100
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@ -77,6 +80,7 @@
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#define GPMC_CS0_OFFSET 0x60
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#define GPMC_CS_SIZE 0x30
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#define GPMC_BCH_SIZE 0x10
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#define GPMC_MEM_START 0x00000000
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#define GPMC_MEM_END 0x3FFFFFFF
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@ -731,6 +735,8 @@ EXPORT_SYMBOL(gpmc_prefetch_reset);
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void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs)
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{
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int i;
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reg->gpmc_status = gpmc_base + GPMC_STATUS;
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reg->gpmc_nand_command = gpmc_base + GPMC_CS0_OFFSET +
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GPMC_CS_NAND_COMMAND + GPMC_CS_SIZE * cs;
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@ -746,7 +752,17 @@ void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs)
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reg->gpmc_ecc_control = gpmc_base + GPMC_ECC_CONTROL;
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reg->gpmc_ecc_size_config = gpmc_base + GPMC_ECC_SIZE_CONFIG;
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reg->gpmc_ecc1_result = gpmc_base + GPMC_ECC1_RESULT;
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reg->gpmc_bch_result0 = gpmc_base + GPMC_ECC_BCH_RESULT_0;
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for (i = 0; i < GPMC_BCH_NUM_REMAINDER; i++) {
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reg->gpmc_bch_result0[i] = gpmc_base + GPMC_ECC_BCH_RESULT_0 +
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GPMC_BCH_SIZE * i;
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reg->gpmc_bch_result1[i] = gpmc_base + GPMC_ECC_BCH_RESULT_1 +
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GPMC_BCH_SIZE * i;
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reg->gpmc_bch_result2[i] = gpmc_base + GPMC_ECC_BCH_RESULT_2 +
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GPMC_BCH_SIZE * i;
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reg->gpmc_bch_result3[i] = gpmc_base + GPMC_ECC_BCH_RESULT_3 +
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GPMC_BCH_SIZE * i;
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}
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}
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int gpmc_get_client_irq(unsigned irq_config)
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@ -13,6 +13,8 @@
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#include <linux/mtd/partitions.h>
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#define GPMC_BCH_NUM_REMAINDER 8
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enum nand_io {
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NAND_OMAP_PREFETCH_POLLED = 0, /* prefetch polled mode, default */
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NAND_OMAP_POLLED, /* polled mode, without prefetch */
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@ -43,7 +45,10 @@ struct gpmc_nand_regs {
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void __iomem *gpmc_ecc_control;
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void __iomem *gpmc_ecc_size_config;
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void __iomem *gpmc_ecc1_result;
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void __iomem *gpmc_bch_result0;
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void __iomem *gpmc_bch_result0[GPMC_BCH_NUM_REMAINDER];
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void __iomem *gpmc_bch_result1[GPMC_BCH_NUM_REMAINDER];
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void __iomem *gpmc_bch_result2[GPMC_BCH_NUM_REMAINDER];
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void __iomem *gpmc_bch_result3[GPMC_BCH_NUM_REMAINDER];
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};
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struct omap_nand_platform_data {
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