brain-hackers_pepepper-mirror
/
u-boot-brain
mirror of https://github.com/brain-hackers/u-boot-brain
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

topic-miamiplus: Run CPU at 800MHz for speedgrade-2 

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>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Mike Looijmans 2019-01-18 09:02:47 +01:00 committed by Michal Simek
parent 84de0f9188
commit 5820590309
2 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
arch/arm/dts/zynq-topic-miamiplus.dts
View File

@ -11,6 +11,15 @@
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>;
};

4
board/topic/zynq/zynq-topic-miamiplus/ps7_init_gpl.c
View File

@ -8,8 +8,8 @@
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),