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mtd mxc nand: Merge init functions 

Merge mxc_setup_config1() into board_nand_init() in order to ease the addition
of i.MX5 support in the following patches.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Benoît Thébaudeau 2012-08-13 22:50:30 +02:00 committed by Scott Wood
parent 7c28a1cfdf
commit 13927f0733
1 changed files with 23 additions and 30 deletions
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53
drivers/mtd/nand/mxc_nand.c
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@ -1137,24 +1137,6 @@ void mxc_nand_command(struct mtd_info *mtd, unsigned command,
}
}
#ifdef MXC_NFC_V1_1
static void mxc_setup_config1(void)
{
uint16_t tmp;
tmp = readw(&host->regs->config1);
tmp |= NFC_ONE_CYCLE;
tmp |= NFC_4_8N_ECC;
writew(tmp, &host->regs->config1);
if (host->pagesize_2k)
writew(64/2, &host->regs->spare_area_size);
else
writew(16/2, &host->regs->spare_area_size);
}
#else
#define mxc_setup_config1()
#endif
#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
static u8 bbt_pattern[] = {'B', 'b', 't', '0' };
@ -1244,6 +1226,29 @@ int board_nand_init(struct nand_chip *this)
/* Reset NAND */
this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
/* NAND bus width determines access functions used by upper layer */
if (is_16bit_nand())
this->options |= NAND_BUSWIDTH_16;
#ifdef CONFIG_SYS_NAND_LARGEPAGE
host->pagesize_2k = 1;
this->ecc.layout = &nand_hw_eccoob2k;
#else
host->pagesize_2k = 0;
this->ecc.layout = &nand_hw_eccoob;
#endif
#ifdef MXC_NFC_V1_1
tmp = readw(&host->regs->config1);
tmp |= NFC_ONE_CYCLE;
tmp |= NFC_4_8N_ECC;
writew(tmp, &host->regs->config1);
if (host->pagesize_2k)
writew(64/2, &host->regs->spare_area_size);
else
writew(16/2, &host->regs->spare_area_size);
#endif
/*
* preset operation
* Unlock the internal RAM Buffer
@ -1268,17 +1273,5 @@ int board_nand_init(struct nand_chip *this)
/* Unlock Block Command for given address range */
writew(0x4, &host->regs->wrprot);
/* NAND bus width determines access functions used by upper layer */
if (is_16bit_nand())
this->options |= NAND_BUSWIDTH_16;
#ifdef CONFIG_SYS_NAND_LARGEPAGE
host->pagesize_2k = 1;
this->ecc.layout = &nand_hw_eccoob2k;
#else
host->pagesize_2k = 0;
this->ecc.layout = &nand_hw_eccoob;
#endif
mxc_setup_config1();
return 0;
}