diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc8xx/speed.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc8xx/speed.c | 25 |
1 files changed, 3 insertions, 22 deletions
diff --git a/arch/powerpc/cpu/mpc8xx/speed.c b/arch/powerpc/cpu/mpc8xx/speed.c index 8d43efff6c..fa8f87cbc5 100644 --- a/arch/powerpc/cpu/mpc8xx/speed.c +++ b/arch/powerpc/cpu/mpc8xx/speed.c @@ -12,27 +12,6 @@ DECLARE_GLOBAL_DATA_PTR; -void get_brgclk(uint sccr) -{ - uint divider = 0; - - switch ((sccr & SCCR_DFBRG11) >> 11) { - case 0: - divider = 1; - break; - case 1: - divider = 4; - break; - case 2: - divider = 16; - break; - case 3: - divider = 64; - break; - } - gd->arch.brg_clk = gd->cpu_clk / divider; -} - /* * get_clocks() fills in gd->cpu_clock depending on CONFIG_8xx_GCLK_FREQ */ @@ -41,6 +20,8 @@ int get_clocks(void) uint immr = get_immr(0); /* Return full IMMR contents */ immap_t __iomem *immap = (immap_t __iomem *)(immr & 0xFFFF0000); uint sccr = in_be32(&immap->im_clkrst.car_sccr); + uint divider = 1 << (((sccr & SCCR_DFBRG11) >> 11) * 2); + /* * If for some reason measuring the gclk frequency won't * work, we return the hardwired value. @@ -57,7 +38,7 @@ int get_clocks(void) gd->bus_clk = gd->cpu_clk / 2; } - get_brgclk(sccr); + gd->arch.brg_clk = gd->cpu_clk / divider; return 0; } |