diff options
| -rw-r--r-- | firmware/target/arm/imx233/system-imx233.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/firmware/target/arm/imx233/system-imx233.c b/firmware/target/arm/imx233/system-imx233.c index 68f0635..dfa6b56 100644 --- a/firmware/target/arm/imx233/system-imx233.c +++ b/firmware/target/arm/imx233/system-imx233.c @@ -163,6 +163,16 @@ void udelay(unsigned us) while(!imx233_us_elapsed(ref, us)); } +void imx233_digctl_set_arm_cache_timings(unsigned timings) +{ + HW_DIGCTL_ARMCACHE = + timings << HW_DIGCTL_ARMCACHE__ITAG_SS_BP | + timings << HW_DIGCTL_ARMCACHE__DTAG_SS_BP | + timings << HW_DIGCTL_ARMCACHE__CACHE_SS_BP | + timings << HW_DIGCTL_ARMCACHE__DRTY_SS_BP | + timings << HW_DIGCTL_ARMCACHE__VALID_SS_BP; +} + #ifdef HAVE_ADJUSTABLE_CPU_FREQ void set_cpu_frequency(long frequency) { @@ -185,6 +195,7 @@ void set_cpu_frequency(long frequency) * changes are safe too */ imx233_clkctrl_set_clock_divisor(CLK_HBUS, 4); imx233_clkctrl_set_bypass_pll(CLK_CPU, true); + imx233_digctl_set_arm_cache_timings(0); switch(frequency) { @@ -233,6 +244,7 @@ void set_cpu_frequency(long frequency) imx233_clkctrl_set_bypass_pll(CLK_CPU, false); imx233_emi_set_frequency(IMX233_EMIFREQ_64_MHz); + imx233_digctl_set_arm_cache_timings(3); /* ref_cpu@480 MHz * ref_emi@480 MHz * clk_emi@64 MHz |