diff options
| author | Scott Wood <scottwood@freescale.com> | 2012-01-12 19:42:58 -0600 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2012-01-26 16:09:06 -0600 |
| commit | c17834749279b02f31c1d9ce5ca8427b795bb90d (patch) | |
| tree | 36882f14651882379cbfaca64bf46e9a1b08cce5 | |
| parent | 578931b34d0a26974f14640fa4ec3aadeb2145cd (diff) | |
| download | u-boot-imx-c17834749279b02f31c1d9ce5ca8427b795bb90d.zip u-boot-imx-c17834749279b02f31c1d9ce5ca8427b795bb90d.tar.gz u-boot-imx-c17834749279b02f31c1d9ce5ca8427b795bb90d.tar.bz2 | |
nand/fsl_elbc: Convert to self-init
This driver doesn't yet make use of the added flexibility (not that that
should stop anyone from converting...), but it will with the in-progress
hack to support 4k-page NAND.
Signed-off-by: Scott Wood <scottwood@freescale.com>
| -rw-r--r-- | drivers/mtd/nand/fsl_elbc_nand.c | 43 | ||||
| -rw-r--r-- | include/nand.h | 11 |
2 files changed, 49 insertions, 5 deletions
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index 99d1061..9076ad4 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -22,6 +22,7 @@ #include <common.h> #include <malloc.h> +#include <nand.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> @@ -57,7 +58,6 @@ struct fsl_elbc_ctrl; /* mtd information per set */ struct fsl_elbc_mtd { - struct mtd_info mtd; struct nand_chip chip; struct fsl_elbc_ctrl *ctrl; @@ -686,10 +686,13 @@ static void fsl_elbc_ctrl_init(void) elbc_ctrl->addr = NULL; } -int board_nand_init(struct nand_chip *nand) +static int fsl_elbc_chip_init(int devnum, u8 *addr) { + struct mtd_info *mtd = &nand_info[devnum]; + struct nand_chip *nand; struct fsl_elbc_mtd *priv; uint32_t br = 0, or = 0; + int ret; if (!elbc_ctrl) { fsl_elbc_ctrl_init(); @@ -702,19 +705,19 @@ int board_nand_init(struct nand_chip *nand) return -ENOMEM; priv->ctrl = elbc_ctrl; - priv->vbase = nand->IO_ADDR_R; + priv->vbase = addr; /* Find which chip select it is connected to. It'd be nice * if we could pass more than one datum to the NAND driver... */ for (priv->bank = 0; priv->bank < MAX_BANKS; priv->bank++) { - phys_addr_t base_addr = virt_to_phys(nand->IO_ADDR_R); + phys_addr_t phys_addr = virt_to_phys(addr); br = in_be32(&elbc_ctrl->regs->bank[priv->bank].br); or = in_be32(&elbc_ctrl->regs->bank[priv->bank].or); if ((br & BR_V) && (br & BR_MSEL) == BR_MS_FCM && - (br & or & BR_BA) == BR_PHYS_ADDR(base_addr)) + (br & or & BR_BA) == BR_PHYS_ADDR(phys_addr)) break; } @@ -724,6 +727,9 @@ int board_nand_init(struct nand_chip *nand) return -ENODEV; } + nand = &priv->chip; + mtd->priv = nand; + elbc_ctrl->chips[priv->bank] = priv; /* fill in nand_chip structure */ @@ -794,5 +800,32 @@ int board_nand_init(struct nand_chip *nand) } } + ret = nand_scan_ident(mtd, 1, NULL); + if (ret) + return ret; + + ret = nand_scan_tail(mtd); + if (ret) + return ret; + + ret = nand_register(devnum); + if (ret) + return ret; + return 0; } + +#ifndef CONFIG_SYS_NAND_BASE_LIST +#define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND_BASE } +#endif + +static unsigned long base_address[CONFIG_SYS_MAX_NAND_DEVICE] = + CONFIG_SYS_NAND_BASE_LIST; + +void board_nand_init(void) +{ + int i; + + for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) + fsl_elbc_chip_init(i, (u8 *)base_address[i]); +} diff --git a/include/nand.h b/include/nand.h index 5dd1710..8b3a1a7 100644 --- a/include/nand.h +++ b/include/nand.h @@ -24,6 +24,17 @@ #ifndef _NAND_H_ #define _NAND_H_ +#include <config.h> + +/* + * All boards using a given driver must convert to self-init + * at the same time, so do it here. When all drivers are + * converted, this will go away. + */ +#if defined(CONFIG_NAND_FSL_ELBC) +#define CONFIG_SYS_NAND_SELF_INIT +#endif + extern void nand_init(void); #include <linux/mtd/compat.h> |