diff options
| author | Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> | 2017-02-02 15:02:00 +0530 |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2017-02-03 14:31:45 -0800 |
| commit | add63f94a9c3bbe1af3fdf3f4c56a5185a4c0504 (patch) | |
| tree | 42764dc1d5255e15910c9df403ed2969379cdb96 /arch/powerpc/cpu/mpc86xx | |
| parent | 068789773d0b369a6a64120776932f912d183f61 (diff) | |
arch: powerpc: update the eLBC IP input clock
eLBC IP clock is always a constant divisor of platform clock
pre-defined per SoC. Clock ratio register (LCRR) used in
current implementation governs eLBC IP output cloc.
Update sys_info->freq_localbus to represent eLBC input clock with
value constant divisor of platform clock.
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch/powerpc/cpu/mpc86xx')
| -rw-r--r-- | arch/powerpc/cpu/mpc86xx/speed.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/arch/powerpc/cpu/mpc86xx/speed.c b/arch/powerpc/cpu/mpc86xx/speed.c index 05f23db457..51b47b823b 100644 --- a/arch/powerpc/cpu/mpc86xx/speed.c +++ b/arch/powerpc/cpu/mpc86xx/speed.c @@ -24,7 +24,6 @@ void get_sys_info(sys_info_t *sys_info) volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; volatile ccsr_gur_t *gur = &immap->im_gur; uint plat_ratio, e600_ratio; - uint lcrr_div; plat_ratio = (gur->porpllsr) & 0x0000003e; plat_ratio >>= 1; @@ -78,19 +77,7 @@ void get_sys_info(sys_info_t *sys_info) break; } -#if defined(CONFIG_SYS_LBC_LCRR) - /* We will program LCRR to this value later */ - lcrr_div = CONFIG_SYS_LBC_LCRR & LCRR_CLKDIV; -#else - lcrr_div = in_be32(&immap->im_lbc.lcrr) & LCRR_CLKDIV; -#endif - if (lcrr_div == 2 || lcrr_div == 4 || lcrr_div == 8) { - sys_info->freq_localbus = sys_info->freq_systembus - / (lcrr_div * 2); - } else { - /* In case anyone cares what the unknown value is */ - sys_info->freq_localbus = lcrr_div; - } + sys_info->freq_localbus = sys_info->freq_systembus; } |