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-rw-r--r--firmware/target/arm/imx233/system-imx233.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/firmware/target/arm/imx233/system-imx233.c b/firmware/target/arm/imx233/system-imx233.c
index 3cac826319..f34eab66e2 100644
--- a/firmware/target/arm/imx233/system-imx233.c
+++ b/firmware/target/arm/imx233/system-imx233.c
@@ -263,17 +263,27 @@ struct cpufreq_profile_t
int arm_cache_timings;
};
+/* Some devices don't handle very well memory frequency changes, so avoid them
+ * by running at highest speed at all time */
+#if defined(CREATIVE_ZEN) || defined(CREATIVE_ZENXFI)
+#define EMIFREQ_NORMAL IMX233_EMIFREQ_130_MHz
+#define EMIFREQ_MAX IMX233_EMIFREQ_130_MHz
+#else /* weird targets */
+#define EMIFREQ_NORMAL IMX233_EMIFREQ_64_MHz
+#define EMIFREQ_MAX IMX233_EMIFREQ_130_MHz
+#endif
+
#if IMX233_SUBTARGET >= 3700
static struct cpufreq_profile_t cpu_profiles[] =
{
/* clk_p@454.74 MHz, clk_h@151.58 MHz, clk_emi@130.91 MHz, VDDD@1.550 V */
- {IMX233_CPUFREQ_454_MHz, 1550, 1450, 3, 1, 19, IMX233_EMIFREQ_130_MHz, 0},
+ {IMX233_CPUFREQ_454_MHz, 1550, 1450, 3, 1, 19, EMIFREQ_MAX, 0},
/* clk_p@320.00 MHz, clk_h@106.66 MHz, clk_emi@130.91 MHz, VDDD@1.450 V */
- {IMX233_CPUFREQ_320_MHz, 1450, 1350, 3, 1, 27, IMX233_EMIFREQ_130_MHz, 0},
+ {IMX233_CPUFREQ_320_MHz, 1450, 1350, 3, 1, 27, EMIFREQ_MAX, 0},
/* clk_p@261.82 MHz, clk_h@130.91 MHz, clk_emi@130.91 MHz, VDDD@1.275 V */
- {IMX233_CPUFREQ_261_MHz, 1275, 1175, 2, 1, 33, IMX233_EMIFREQ_130_MHz, 0},
+ {IMX233_CPUFREQ_261_MHz, 1275, 1175, 2, 1, 33, EMIFREQ_MAX, 0},
/* clk_p@64 MHz, clk_h@64 MHz, clk_emi@64 MHz, VDDD@1.050 V */
- {IMX233_CPUFREQ_64_MHz, 1050, 975, 1, 5, 27, IMX233_EMIFREQ_64_MHz, 3},
+ {IMX233_CPUFREQ_64_MHz, 1050, 975, 1, 5, 27, EMIFREQ_NORMAL, 3},
/* dummy */
{0, 0, 0, 0, 0, 0, 0, 0}
};