[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



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