[U-Boot] [PATCH] sunxi: Set AHB1 clock to PLL6/3 on all clock_sun6i.h using SoCs
Hans de Goede
hdegoede at redhat.com
Fri Nov 20 19:32:03 CET 2015
According to the datasheets the max speed of AHB1 is 276 MHz, so
setting it to PLL6 / 3 which gives us 200MHz everywhere is fine,
and gives us a nice speed-up in certain workloads.
Suggested-by: Chen-Yu Tsai <wens at csie.org>
Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
arch/arm/include/asm/arch-sunxi/clock_sun6i.h | 4 ----
1 file changed, 4 deletions(-)
diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
index 09337a1..5c76275 100644
--- a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
+++ b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
@@ -220,11 +220,7 @@ struct sunxi_ccm_reg {
#define CCM_PLL11_CTRL_UPD (0x1 << 30)
#define CCM_PLL11_CTRL_EN (0x1 << 31)
-#if defined CONFIG_MACH_SUN8I_H3
#define AHB1_ABP1_DIV_DEFAULT 0x00003180 /* AHB1=PLL6/3,APB1=AHB1/2 */
-#else
-#define AHB1_ABP1_DIV_DEFAULT 0x00002020 /* AHB1=AXI/4, APB1=AHB1/2 */
-#endif
#define AXI_GATE_OFFSET_DRAM 0
--
2.5.0
More information about the U-Boot
mailing list