diff options
Diffstat (limited to 'include/configs/sbc8349.h')
| -rw-r--r-- | include/configs/sbc8349.h | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/include/configs/sbc8349.h b/include/configs/sbc8349.h index 868bd54..088b283 100644 --- a/include/configs/sbc8349.h +++ b/include/configs/sbc8349.h @@ -40,24 +40,28 @@ #define CONFIG_MPC8349 1 /* MPC8349 specific */ #define CONFIG_SBC8349 1 /* WRS SBC8349 board specific */ -#undef CONFIG_PCI /* Don't enable PCI2 on sbc834x - it doesn't exist physically. */ #undef CONFIG_MPC83XX_PCI2 /* support for 2nd PCI controller */ -#define PCI_66M -#ifdef PCI_66M -#define CONFIG_83XX_CLKIN 66000000 /* in Hz */ -#else +/* + * The default if PCI isn't enabled, or if no PCI clk setting is given + * is 66MHz; this is what the board defaults to when the PCI slot is + * physically empty. The board will automatically (i.e w/o jumpers) + * clock down to 33MHz if you insert a 33MHz PCI card. + */ +#ifdef PCI_33M #define CONFIG_83XX_CLKIN 33000000 /* in Hz */ +#else /* 66M */ +#define CONFIG_83XX_CLKIN 66000000 /* in Hz */ #endif #ifndef CONFIG_SYS_CLK_FREQ -#ifdef PCI_66M -#define CONFIG_SYS_CLK_FREQ 66000000 -#define HRCWL_CSB_TO_CLKIN HRCWL_CSB_TO_CLKIN_4X1 -#else +#ifdef PCI_33M #define CONFIG_SYS_CLK_FREQ 33000000 #define HRCWL_CSB_TO_CLKIN HRCWL_CSB_TO_CLKIN_8X1 +#else /* 66M */ +#define CONFIG_SYS_CLK_FREQ 66000000 +#define HRCWL_CSB_TO_CLKIN HRCWL_CSB_TO_CLKIN_4X1 #endif #endif |