diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/gen5200/include/bsp.h')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/gen5200/include/bsp.h | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/c/src/lib/libbsp/powerpc/gen5200/include/bsp.h b/c/src/lib/libbsp/powerpc/gen5200/include/bsp.h index 998349c55f..f106e8b3c2 100644 --- a/c/src/lib/libbsp/powerpc/gen5200/include/bsp.h +++ b/c/src/lib/libbsp/powerpc/gen5200/include/bsp.h @@ -61,13 +61,15 @@ */ /* ROM definitions (2 MB) */ #define ROM_START 0xFFE00000 -#define ROM_END 0xFFFFFFFF +#define ROM_SIZE 0x00200000 +#define ROM_END (ROM_START+ROM_SIZE-1) #define BOOT_START ROM_START #define BOOT_END ROM_END /* SDRAM definitions (256 MB) */ -#define RAM_START 0x00000000 -#define RAM_END 0x0FFFFFFF +#define RAM_START 0x00000000 +#define RAM_SIZE 0x10000000 +#define RAM_END (RAM_START+RAM_SIZE-1) /* DPRAM definitions (64 KB) */ #define DPRAM_START 0xFF000000 @@ -198,7 +200,8 @@ void bsp_cleanup(void); #define UARTS_USE_TERMIOS_INT 1 /* ata modes */ -#undef ATA_USE_INT +/* #undef ATA_USE_INT */ +#define ATA_USE_INT /* clock settings */ #if defined(HAS_UBOOT) @@ -211,6 +214,21 @@ void bsp_cleanup(void); #define G2_CLOCK 231000000 /* 231 MHz */ #endif +/* + * Convert decrement value to tenths of microsecnds (used by + * shared timer driver). + * + * + CPU has a XLB_CLOCK bus, + * + There are 4 bus cycles per click + * + We return value in 1/10 microsecond units. + * Modified following equation to integer equation to remove + * floating point math. + * (int) ((float)(_value) / ((XLB_CLOCK/1000000 * 0.1) / 4.0)) + */ + +#define BSP_Convert_decrementer( _value ) \ + (int) (((_value) * 4000) / (XLB_CLOCK/10000)) + /* slicetimer settings */ #define USE_SLICETIMER_0 TRUE #define USE_SLICETIMER_1 FALSE |