diff options
| author | Amaury Pouly <amaury.pouly@gmail.com> | 2014-06-22 12:56:21 +0200 |
|---|---|---|
| committer | Amaury Pouly <amaury.pouly@gmail.com> | 2014-06-24 18:07:56 +0200 |
| commit | 55c5c7ea669a60980fa9d17055b74cbca7be3f58 (patch) | |
| tree | 07060ad29192b99a9e1eab59d30f79b370646ed6 | |
| parent | 32219513aa61787be91b6e785738c91858123d7f (diff) | |
| download | rockbox-55c5c7ea669a60980fa9d17055b74cbca7be3f58.zip rockbox-55c5c7ea669a60980fa9d17055b74cbca7be3f58.tar.gz rockbox-55c5c7ea669a60980fa9d17055b74cbca7be3f58.tar.bz2 rockbox-55c5c7ea669a60980fa9d17055b74cbca7be3f58.tar.xz | |
imx233/emi: cleanup and don't change emi freq if not needed
Change-Id: I19f633a85bb12f880215905482934e34da549a13
| -rw-r--r-- | firmware/target/arm/imx233/emi-imx233.c | 6 | ||||
| -rw-r--r-- | firmware/target/arm/imx233/emi-imx233.h | 2 |
2 files changed, 6 insertions, 2 deletions
diff --git a/firmware/target/arm/imx233/emi-imx233.c b/firmware/target/arm/imx233/emi-imx233.c index 259ada0..fcdb6d2 100644 --- a/firmware/target/arm/imx233/emi-imx233.c +++ b/firmware/target/arm/imx233/emi-imx233.c @@ -135,6 +135,12 @@ void imx233_emi_set_frequency(unsigned long freq) * WARNING DANGER don't call any external function when sdram is disabled * otherwise you'll poke sdram and trigger a fatal data abort ! */ + static unsigned long cur_freq = -1; + /* avoid changes if unneeded */ + if(cur_freq == freq) + return; + cur_freq = freq; + /* first disable all interrupts */ int oldstatus = disable_interrupt_save(IRQ_FIQ_STATUS); /* flush the cache */ diff --git a/firmware/target/arm/imx233/emi-imx233.h b/firmware/target/arm/imx233/emi-imx233.h index 71aae3e..9f66d40 100644 --- a/firmware/target/arm/imx233/emi-imx233.h +++ b/firmware/target/arm/imx233/emi-imx233.h @@ -46,9 +46,7 @@ struct imx233_emi_info_t * Absolute minimum CPU speed: 24 MHz */ #define IMX233_EMIFREQ_151_MHz 151580 #define IMX233_EMIFREQ_130_MHz 130910 -#define IMX233_EMIFREQ_120_MHz 120000 #define IMX233_EMIFREQ_64_MHz 64000 -#define IMX233_EMIFREQ_24_MHz 24000 void imx233_emi_set_frequency(unsigned long freq); struct imx233_emi_info_t imx233_emi_get_info(void); |