powerpc/85xx: Change timebase divisor to be defined per processor

[karo-tx-uboot.git] / arch / powerpc / cpu / mpc85xx / cpu.c

diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index f5b39c067c73843e1aeeacdea3fd392bc9d1700f..f863f4aad02958f4c35c18c1d14c4e36272156f5 100644 (file)
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -234,13 +234,14 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 /*
  * Get timebase clock frequency
  */
+#ifndef CONFIG_SYS_FSL_TBCLK_DIV
+#define CONFIG_SYS_FSL_TBCLK_DIV 8
+#endif
 unsigned long get_tbclk (void)
 {
-#ifdef CONFIG_FSL_CORENET
-       return (gd->bus_clk + 8) / 16;
-#else
-       return (gd->bus_clk + 4UL)/8UL;
-#endif
+       unsigned long tbclk_div = CONFIG_SYS_FSL_TBCLK_DIV;
+
+       return (gd->bus_clk + (tbclk_div >> 1)) / tbclk_div;
 }