summaryrefslogtreecommitdiffstats
path: root/arch/mips/netlogic/xlp/nlm_hal.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/netlogic/xlp/nlm_hal.c')
-rw-r--r--arch/mips/netlogic/xlp/nlm_hal.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/arch/mips/netlogic/xlp/nlm_hal.c b/arch/mips/netlogic/xlp/nlm_hal.c
index 885f687..9428e71 100644
--- a/arch/mips/netlogic/xlp/nlm_hal.c
+++ b/arch/mips/netlogic/xlp/nlm_hal.c
@@ -86,20 +86,26 @@ int nlm_irt_to_irq(int irt)
}
}
-unsigned int nlm_get_cpu_frequency(void)
+unsigned int nlm_get_core_frequency(int core)
{
- unsigned int pll_divf, pll_divr, dfs_div, denom;
- unsigned int val;
+ unsigned int pll_divf, pll_divr, dfs_div, ext_div;
+ unsigned int rstval, dfsval, denom;
uint64_t num;
- val = nlm_read_sys_reg(nlm_sys_base, SYS_POWER_ON_RESET_CFG);
- pll_divf = (val >> 10) & 0x7f;
- pll_divr = (val >> 8) & 0x3;
- dfs_div = (val >> 17) & 0x3;
+ rstval = nlm_read_sys_reg(nlm_sys_base, SYS_POWER_ON_RESET_CFG);
+ dfsval = nlm_read_sys_reg(nlm_sys_base, SYS_CORE_DFS_DIV_VALUE);
+ pll_divf = ((rstval >> 10) & 0x7f) + 1;
+ pll_divr = ((rstval >> 8) & 0x3) + 1;
+ ext_div = ((rstval >> 30) & 0x3) + 1;
+ dfs_div = ((dfsval >> (core * 4)) & 0xf) + 1;
- num = pll_divf + 1;
- denom = 3 * (pll_divr + 1) * (1 << (dfs_div + 1));
- num = num * 800000000ULL;
+ num = 800000000ULL * pll_divf;
+ denom = 3 * pll_divr * ext_div * dfs_div;
do_div(num, denom);
return (unsigned int)num;
}
+
+unsigned int nlm_get_cpu_frequency(void)
+{
+ return nlm_get_core_frequency(0);
+}
OpenPOWER on IntegriCloud