ARM: OMAP2+: gpmc: update nand register helper
Provide helper function for updating NAND register details for
the necessary chip select. NAND drivers platform data can be
updated with this information so that NAND driver can handle
GPMC NAND operations by itself.
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index b2b5759..5cce9b0 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -682,6 +682,26 @@
}
EXPORT_SYMBOL(gpmc_prefetch_reset);
+void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs)
+{
+ reg->gpmc_status = gpmc_base + GPMC_STATUS;
+ reg->gpmc_nand_command = gpmc_base + GPMC_CS0_OFFSET +
+ GPMC_CS_NAND_COMMAND + GPMC_CS_SIZE * cs;
+ reg->gpmc_nand_address = gpmc_base + GPMC_CS0_OFFSET +
+ GPMC_CS_NAND_ADDRESS + GPMC_CS_SIZE * cs;
+ reg->gpmc_nand_data = gpmc_base + GPMC_CS0_OFFSET +
+ GPMC_CS_NAND_DATA + GPMC_CS_SIZE * cs;
+ reg->gpmc_prefetch_config1 = gpmc_base + GPMC_PREFETCH_CONFIG1;
+ reg->gpmc_prefetch_config2 = gpmc_base + GPMC_PREFETCH_CONFIG2;
+ reg->gpmc_prefetch_control = gpmc_base + GPMC_PREFETCH_CONTROL;
+ reg->gpmc_prefetch_status = gpmc_base + GPMC_PREFETCH_STATUS;
+ reg->gpmc_ecc_config = gpmc_base + GPMC_ECC_CONFIG;
+ reg->gpmc_ecc_control = gpmc_base + GPMC_ECC_CONTROL;
+ reg->gpmc_ecc_size_config = gpmc_base + GPMC_ECC_SIZE_CONFIG;
+ reg->gpmc_ecc1_result = gpmc_base + GPMC_ECC1_RESULT;
+ reg->gpmc_bch_result0 = gpmc_base + GPMC_ECC_BCH_RESULT_0;
+}
+
static void __init gpmc_mem_init(void)
{
int cs;