diff mbox

[U-Boot] topic-miamiplus: Run CPU at 800MHz for speedgrade-2

Message ID 1499344356-7459-1-git-send-email-mike.looijmans@topic.nl
State Deferred
Delegated to: Michal Simek
Headers show

Commit Message

Mike Looijmans July 6, 2017, 12:32 p.m. UTC 
The miamiplus contains a speedgrade-2 device, which may run the CPU at 800MHz.
Change the PLL setting to 800MHz, and adapt the setpoints in the devicetree.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
---
 arch/arm/dts/zynq-topic-miamiplus.dts                | 9 +++++++++
 board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c | 4 ++--
 2 files changed, 11 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/arch/arm/dts/zynq-topic-miamiplus.dts b/arch/arm/dts/zynq-topic-miamiplus.dts
index 3036f6e..fef5941 100644
--- a/arch/arm/dts/zynq-topic-miamiplus.dts
+++ b/arch/arm/dts/zynq-topic-miamiplus.dts
@@ -12,6 +12,15 @@ 
 	compatible = "topic,miamiplus", "xlnx,zynq-7000";
 };
 
+/* The miamiplus contains a speedgrade-2 device and runs at 800MHz */
+&cpu0 {
+	operating-points = <
+		/* kHz    uV */
+		800000  1000000
+		400000  1000000
+	>;
+};
+
 &qspi {
 	is-dual = <1>;
 };
diff --git a/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c b/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c
index 5a92336..97a59a5 100644
--- a/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c
+++ b/board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c
@@ -9,8 +9,8 @@ 
 
 static unsigned long ps7_pll_init_data_3_0[] = {
 	EMIT_MASKWRITE(0XF8000008, 0x0000FFFFU, 0x0000DF0DU),
-	EMIT_MASKWRITE(0XF8000110, 0x003FFFF0U, 0x000FA220U),
-	EMIT_MASKWRITE(0XF8000100, 0x0007F000U, 0x00028000U),
+	EMIT_MASKWRITE(0XF8000110, 0x003FFFF0U, 0x000FA240U),
+	EMIT_MASKWRITE(0XF8000100, 0x0007F000U, 0x00030000U),
 	EMIT_MASKWRITE(0XF8000100, 0x00000010U, 0x00000010U),
 	EMIT_MASKWRITE(0XF8000100, 0x00000001U, 0x00000001U),
 	EMIT_MASKWRITE(0XF8000100, 0x00000001U, 0x00000000U),