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Blackfin: bf537-stamp: comment CF-Flash Card Support better

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Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Michael Hennerich 2009-06-18 09:12:50 +00:00 committed by Tom Rix
parent 8e5dc6f986
commit 05d89091ca
1 changed files with 24 additions and 5 deletions
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29
include/configs/bf537-stamp.h
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@ -178,9 +178,28 @@
/* /*
* CF-CARD IDE-HDD Support * CF-CARD IDE-HDD Support
*/ */
/* #define CONFIG_BFIN_TRUE_IDE */ /* Add CF flash card support */
/* #define CONFIG_BFIN_CF_IDE */ /* Add CF flash card support */ /*
/* #define CONFIG_BFIN_HDD_IDE */ /* Add IDE Disk Drive (HDD) support */ * Add CF flash card support in TRUE-IDE Mode (CF-IDE-NAND Card)
* Strange address mapping Blackfin A13 connects to CF_A0
*/
/* #define CONFIG_BFIN_TRUE_IDE */
/*
* Add CF flash card support in Common Memory Mode (CF-IDE-NAND Card)
* This should be the preferred mode
*/
/* #define CONFIG_BFIN_CF_IDE */
/*
* Add IDE Disk Drive (HDD) support
* See example interface here:
* http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:drivers:ide-blackfin
*/
/* #define CONFIG_BFIN_HDD_IDE */
#if defined(CONFIG_BFIN_CF_IDE) || \ #if defined(CONFIG_BFIN_CF_IDE) || \
defined(CONFIG_BFIN_HDD_IDE) || \ defined(CONFIG_BFIN_HDD_IDE) || \
@ -218,7 +237,7 @@
#define CONFIG_SYS_ATA_DATA_OFFSET 0x0020 /* data I/O */ #define CONFIG_SYS_ATA_DATA_OFFSET 0x0020 /* data I/O */
#define CONFIG_SYS_ATA_REG_OFFSET 0x0020 /* normal register accesses */ #define CONFIG_SYS_ATA_REG_OFFSET 0x0020 /* normal register accesses */
#define CONFIG_SYS_ATA_ALT_OFFSET 0x001C /* alternate registers */ #define CONFIG_SYS_ATA_ALT_OFFSET 0x001C /* alternate registers */
#define CONFIG_SYS_ATA_STRIDE 2 /* CF.A0 --> Blackfin.Ax */ #define CONFIG_SYS_ATA_STRIDE 2 /* CF.A0 --> Blackfin.A13 */
#elif defined(CONFIG_BFIN_CF_IDE) #elif defined(CONFIG_BFIN_CF_IDE)
#define CONFIG_SYS_ATA_BASE_ADDR 0x20211800 #define CONFIG_SYS_ATA_BASE_ADDR 0x20211800
@ -226,7 +245,7 @@
#define CONFIG_SYS_ATA_DATA_OFFSET 0x0000 /* data I/O */ #define CONFIG_SYS_ATA_DATA_OFFSET 0x0000 /* data I/O */
#define CONFIG_SYS_ATA_REG_OFFSET 0x0000 /* normal register accesses */ #define CONFIG_SYS_ATA_REG_OFFSET 0x0000 /* normal register accesses */
#define CONFIG_SYS_ATA_ALT_OFFSET 0x000E /* alternate registers */ #define CONFIG_SYS_ATA_ALT_OFFSET 0x000E /* alternate registers */
#define CONFIG_SYS_ATA_STRIDE 1 /* CF.A0 --> Blackfin.Ax */ #define CONFIG_SYS_ATA_STRIDE 1 /* CF_A0=0, with /CE1 /CE2 odd/even byte selects */
#elif defined(CONFIG_BFIN_HDD_IDE) #elif defined(CONFIG_BFIN_HDD_IDE)
#define CONFIG_SYS_ATA_BASE_ADDR 0x20314000 #define CONFIG_SYS_ATA_BASE_ADDR 0x20314000