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Add multi-chip NAND support for the TQM8548 modules

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This patches configures the NAND UPM-FSL driver with multi-chip
support for the Micron MT29F8G08FAB NAND flash memory on the
TQM8548 modules.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Wolfgang Grandegger 2009-02-11 18:38:24 +01:00 • committed by Scott Wood
parent 33846df28f
commit 16f2f5a351
2 changed files with 10 additions and 25 deletions
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5
board/tqc/tqm85xx/nand.c
View file

@ -385,7 +385,7 @@ static void upmb_write (u_char addr, ulong val)
MxMR_OP_WARR | (addr & MxMR_MAD_MSK));
/* dummy access to perform write */
out_8 ((void __iomem *)CONFIG_SYS_NAND0_BASE, 0);
out_8 ((void __iomem *)CONFIG_SYS_NAND_BASE, 0);
clrbits_be32(&lbc->mbmr, MxMR_OP_WARR);
}
@ -446,7 +446,10 @@ static struct fsl_upm_nand fun = {
.width = 8,
.upm_cmd_offset = 0x08,
.upm_addr_offset = 0x10,
.upm_mar_chip_offset = CONFIG_SYS_NAND_CS_DIST,
.chip_offset = CONFIG_SYS_NAND_CS_DIST,
.chip_delay = NAND_BIG_DELAY_US,
.wait_flags = FSL_UPM_WAIT_RUN_PATTERN | FSL_UPM_WAIT_WRITE_BUFFER,
};
void board_nand_select_device (struct nand_chip *nand, int chip)

30
include/configs/TQM85xx.h
View file

@ -371,35 +371,17 @@
#define CONFIG_SYS_NAND_CS_DIST 0x200
#define CONFIG_SYS_NAND_SIZE 0x8000
#define CONFIG_SYS_NAND0_BASE (CONFIG_SYS_CCSRBAR + 0x03010000)
#define CONFIG_SYS_NAND1_BASE (CONFIG_SYS_NAND0_BASE + CONFIG_SYS_NAND_CS_DIST)
#define CONFIG_SYS_NAND2_BASE (CONFIG_SYS_NAND1_BASE + CONFIG_SYS_NAND_CS_DIST)
#define CONFIG_SYS_NAND3_BASE (CONFIG_SYS_NAND2_BASE + CONFIG_SYS_NAND_CS_DIST)
#define CONFIG_SYS_NAND_BASE (CONFIG_SYS_CCSRBAR + 0x03010000)
#define CONFIG_SYS_MAX_NAND_DEVICE 2 /* Max number of NAND devices */
#if (CONFIG_SYS_MAX_NAND_DEVICE == 1)
#define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND0_BASE }
#elif (CONFIG_SYS_MAX_NAND_DEVICE == 2)
#define CONFIG_SYS_NAND_QUIET_TEST 1
#define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND0_BASE, \
CONFIG_SYS_NAND1_BASE, \
}
#elif (CONFIG_SYS_MAX_NAND_DEVICE == 4)
#define CONFIG_SYS_NAND_QUIET_TEST 1
#define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND0_BASE, \
CONFIG_SYS_NAND1_BASE, \
CONFIG_SYS_NAND2_BASE, \
CONFIG_SYS_NAND3_BASE, \
}
#endif
#define CONFIG_SYS_MAX_NAND_DEVICE 1 /* Max number of NAND devices */
#define CONFIG_SYS_NAND_MAX_CHIPS 2 /* Number of chips per device */
/* CS3 for NAND Flash */
#define CONFIG_SYS_BR3_PRELIM ((CONFIG_SYS_NAND0_BASE & BR_BA) | BR_PS_8 | \
BR_MS_UPMB | BR_V)
#define CONFIG_SYS_BR3_PRELIM ((CONFIG_SYS_NAND_BASE & BR_BA) | \
BR_PS_8 | BR_MS_UPMB | BR_V)
#define CONFIG_SYS_OR3_PRELIM (P2SZ_TO_AM(CONFIG_SYS_NAND_SIZE) | OR_UPM_BI)
#define NAND_BIG_DELAY_US 25 /* max tR for Samsung devices */
#define NAND_BIG_DELAY_US 25 /* max tR for Samsung devices */
#endif /* CONFIG_NAND */