diff options
Diffstat (limited to 'board/ads5121')
| -rw-r--r-- | board/ads5121/README | 9 | ||||
| -rw-r--r-- | board/ads5121/ads5121.c | 19 |
2 files changed, 26 insertions, 2 deletions
diff --git a/board/ads5121/README b/board/ads5121/README new file mode 100644 index 0000000..f2d1df3 --- /dev/null +++ b/board/ads5121/README @@ -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 + + diff --git a/board/ads5121/ads5121.c b/board/ads5121/ads5121.c index 130b81d..de59991 100644 --- a/board/ads5121/ads5121.c +++ b/board/ads5121/ads5121.c @@ -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 */ |