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authorMatthias Ludwig <mludwig@ultratronik.de>2009-05-19 09:09:31 +0200
committerWolfgang Denk <wd@denx.de>2009-08-07 23:31:51 +0200
commit187af954cf7958c24efcf0fd62289bbdb4f1f24e (patch)
tree7ad4bfe95128e7a7907ad8aa537817287e6cd69d /drivers/mtd/nand/omap_gpmc.c
parentcb32ed1fc298875845f166d326a3f2704a0d5364 (diff)
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omap3: embedd gpmc_cs into gpmc config struct
Embedd chip select configuration into struct for gpmc config instead of having it completely separated as suggested by Wolfgang Denk on http://lists.denx.de/pipermail/u-boot/2009-May/052247.html Signed-off-by: Matthias Ludwig <mludwig@ultratronik.de>
Diffstat (limited to 'drivers/mtd/nand/omap_gpmc.c')
-rw-r--r--drivers/mtd/nand/omap_gpmc.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/mtd/nand/omap_gpmc.c b/drivers/mtd/nand/omap_gpmc.c
index 5f8ed39..c2dee25 100644
--- a/drivers/mtd/nand/omap_gpmc.c
+++ b/drivers/mtd/nand/omap_gpmc.c
@@ -31,7 +31,6 @@
static uint8_t cs;
static gpmc_t *gpmc_base = (gpmc_t *)GPMC_BASE;
-static gpmc_csx_t *gpmc_cs_base;
static struct nand_ecclayout hw_nand_oob = GPMC_NAND_HW_ECC_LAYOUT;
/*
@@ -49,13 +48,13 @@ static void omap_nand_hwcontrol(struct mtd_info *mtd, int32_t cmd,
*/
switch (ctrl) {
case NAND_CTRL_CHANGE | NAND_CTRL_CLE:
- this->IO_ADDR_W = (void __iomem *)&gpmc_cs_base->nand_cmd;
+ this->IO_ADDR_W = (void __iomem *)&gpmc_base->cs[cs].nand_cmd;
break;
case NAND_CTRL_CHANGE | NAND_CTRL_ALE:
- this->IO_ADDR_W = (void __iomem *)&gpmc_cs_base->nand_adr;
+ this->IO_ADDR_W = (void __iomem *)&gpmc_base->cs[cs].nand_adr;
break;
case NAND_CTRL_CHANGE | NAND_NCE:
- this->IO_ADDR_W = (void __iomem *)&gpmc_cs_base->nand_dat;
+ this->IO_ADDR_W = (void __iomem *)&gpmc_base->cs[cs].nand_dat;
break;
}
@@ -311,15 +310,8 @@ int board_nand_init(struct nand_chip *nand)
* devices.
*/
while (cs < GPMC_MAX_CS) {
- /*
- * Each GPMC set for a single CS is at offset 0x30
- * - already remapped for us
- */
- gpmc_cs_base = (gpmc_csx_t *)(GPMC_CONFIG_CS0_BASE +
- (cs * GPMC_CONFIG_WIDTH));
/* Check if NAND type is set */
- if ((readl(&gpmc_cs_base->config1) & 0xC00) ==
- 0x800) {
+ if ((readl(&gpmc_base->cs[cs].config1) & 0xC00) == 0x800) {
/* Found it!! */
break;
}
@@ -336,13 +328,13 @@ int board_nand_init(struct nand_chip *nand)
gpmc_config |= 0x10;
writel(gpmc_config, &gpmc_base->config);
- nand->IO_ADDR_R = (void __iomem *)&gpmc_cs_base->nand_dat;
- nand->IO_ADDR_W = (void __iomem *)&gpmc_cs_base->nand_cmd;
+ nand->IO_ADDR_R = (void __iomem *)&gpmc_base->cs[cs].nand_dat;
+ nand->IO_ADDR_W = (void __iomem *)&gpmc_base->cs[cs].nand_cmd;
nand->cmd_ctrl = omap_nand_hwcontrol;
nand->options = NAND_NO_PADDING | NAND_CACHEPRG | NAND_NO_AUTOINCR;
/* If we are 16 bit dev, our gpmc config tells us that */
- if ((readl(gpmc_cs_base) & 0x3000) == 0x1000)
+ if ((readl(&gpmc_base->cs[cs].config1) & 0x3000) == 0x1000)
nand->options |= NAND_BUSWIDTH_16;
nand->chip_delay = 100;