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Configuration changes for ADS5121 Rev 3

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ADS5121 Rev 3 board is now the default config

config targets are now

ads5121_config
    Rev 3 board with
	PCI
	M41T62 on board RTC
	512MB DRAM

ads5121_rev2_config
    Rev 2 board with
	No PCI
	256MB DRAM

Signed-off-by: Martha Marx <mmarx@silicontkx.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: John Rigby <jrigby@freescale.com>
This commit is contained in:
Martha Marx
2008-05-29 14:23:25 -04:00
committed by John Rigby
parent 16bee7b0dc
commit f31c49db2a
5 changed files with 67 additions and 16 deletions
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9
board/ads5121/README Normal file
View File

@@ -0,0 +1,9 @@
To configure for the current (Rev 3.x) ADS5121
make ads5121_config
This will automatically include PCI, the Real Time CLock, add backup flash
ability and set the correct frequency and memory configuration.
To configure for the older Rev 2 ADS5121 type (this will not have PCI)
make ads5121_rev2_config

19
board/ads5121/ads5121.c
View File

@@ -26,7 +26,9 @@
#include <asm/bitops.h>
#include <command.h>
#include <fdt_support.h>
#ifdef CONFIG_MISC_INIT_R
#include <i2c.h>
#endif
/* Clocks in use */
#define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN | \
CLOCK_SCCR1_LPC_EN | \
@@ -75,8 +77,21 @@ int board_early_init_f (void)
* Without this the flash identification routine fails, as it needs to issue
* write commands in order to establish the device ID.
*/
*((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0xC1;
#ifdef CONFIG_ADS5121_REV2
*((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0xC1;
#else
if (*((u8 *)(CFG_CPLD_BASE + 0x08)) & 0x04) {
*((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0xC1;
} else {
/* running from Backup flash */
*((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0x32;
}
#endif
/*
* Configure Flash Speed
*/
*((volatile u32 *)(CFG_IMMR + LPC_OFFSET + CS0_CONFIG)) = CFG_CS0_CFG;
/*
* Enable clocks
*/