ARM: OMAP2+: nand: unify init functions
Helper function for updating nand platform data has been
added the capability to take timing structure arguement.
Usage of omap_nand_flash_init() has been replaced by modifed
one, omap_nand_flash_init was doing things similar to
board_nand_init except that NAND CS# were being acquired
based on bootloader setting. As CS# is hardwired for a given
board, acquiring gpmc CS# has been removed, and updated with
the value on board.
NAND CS# used in beagle board & omap3evm was found to be CS0.
Thomas Weber <thomas.weber.linux@googlemail.com> reported
that value of devkit8000 to be CS0. Overo board was found
to be using CS0 based on u-boot, while google grep says
omap3touchbook too has CS0.
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Reviewed-by: Jon Hunter <jon-hunter@ti.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
diff --git a/arch/arm/mach-omap2/board-flash.c b/arch/arm/mach-omap2/board-flash.c
index e642acf..d4ac5352 100644
--- a/arch/arm/mach-omap2/board-flash.c
+++ b/arch/arm/mach-omap2/board-flash.c
@@ -104,41 +104,41 @@
defined(CONFIG_MTD_NAND_OMAP2_MODULE)
/* Note that all values in this struct are in nanoseconds */
-static struct gpmc_timings nand_timings = {
+struct gpmc_timings nand_default_timings[1] = {
+ {
+ .sync_clk = 0,
- .sync_clk = 0,
+ .cs_on = 0,
+ .cs_rd_off = 36,
+ .cs_wr_off = 36,
- .cs_on = 0,
- .cs_rd_off = 36,
- .cs_wr_off = 36,
+ .adv_on = 6,
+ .adv_rd_off = 24,
+ .adv_wr_off = 36,
- .adv_on = 6,
- .adv_rd_off = 24,
- .adv_wr_off = 36,
+ .we_off = 30,
+ .oe_off = 48,
- .we_off = 30,
- .oe_off = 48,
+ .access = 54,
+ .rd_cycle = 72,
+ .wr_cycle = 72,
- .access = 54,
- .rd_cycle = 72,
- .wr_cycle = 72,
-
- .wr_access = 30,
- .wr_data_mux_bus = 0,
+ .wr_access = 30,
+ .wr_data_mux_bus = 0,
+ },
};
-static struct omap_nand_platform_data board_nand_data = {
- .gpmc_t = &nand_timings,
-};
+static struct omap_nand_platform_data board_nand_data;
void
-__init board_nand_init(struct mtd_partition *nand_parts,
- u8 nr_parts, u8 cs, int nand_type)
+__init board_nand_init(struct mtd_partition *nand_parts, u8 nr_parts, u8 cs,
+ int nand_type, struct gpmc_timings *gpmc_t)
{
board_nand_data.cs = cs;
board_nand_data.parts = nand_parts;
board_nand_data.nr_parts = nr_parts;
board_nand_data.devsize = nand_type;
+ board_nand_data.gpmc_t = gpmc_t;
board_nand_data.ecc_opt = OMAP_ECC_HAMMING_CODE_DEFAULT;
gpmc_nand_init(&board_nand_data);
@@ -238,5 +238,6 @@
pr_err("NAND: Unable to find configuration in GPMC\n");
else
board_nand_init(partition_info[2].parts,
- partition_info[2].nr_parts, nandcs, nand_type);
+ partition_info[2].nr_parts, nandcs,
+ nand_type, nand_default_timings);
}