| Message ID | 20200526082026.18898-1-mike.looijmans@topic.nl |
|---|---|
| State | Deferred |
| Delegated to: | Tom Rini |
| Headers | show |
| Series | board: xilinx/zynqmp: Remove 1-second delay at boot | expand |
On 26. 05. 20 10:20, Mike Looijmans wrote: > SPL boot is slow on the ZynqMP because of this delay. The initialization done > in psu_init no longer requires an external delay, so this can be removed to > speed up the SPL boot flow considerably. > > Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> > --- > board/xilinx/zynqmp/zynqmp.c | 4 ---- > 1 file changed, 4 deletions(-) > > diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c > index cb72914adb..d00235f236 100644 > --- a/board/xilinx/zynqmp/zynqmp.c > +++ b/board/xilinx/zynqmp/zynqmp.c > @@ -32,7 +32,6 @@ > #include <zynqmp_firmware.h> > #include <g_dnl.h> > #include <linux/bitops.h> > -#include <linux/delay.h> > #include <linux/sizes.h> > #include "../common/board.h" > > @@ -334,9 +333,6 @@ int board_early_init_f(void) > ret = psu_init(); > if (ret) > return ret; > - > - /* Delay is required for clocks to be propagated */ > - udelay(1000000); > #endif > > #ifdef CONFIG_DEBUG_UART > Mike reported me that removing this 1s is causing issue in SD boot mode that's why I am not applying this patch till we root caused it. Thanks, Michal
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c index cb72914adb..d00235f236 100644 --- a/board/xilinx/zynqmp/zynqmp.c +++ b/board/xilinx/zynqmp/zynqmp.c @@ -32,7 +32,6 @@ #include <zynqmp_firmware.h> #include <g_dnl.h> #include <linux/bitops.h> -#include <linux/delay.h> #include <linux/sizes.h> #include "../common/board.h" @@ -334,9 +333,6 @@ int board_early_init_f(void) ret = psu_init(); if (ret) return ret; - - /* Delay is required for clocks to be propagated */ - udelay(1000000); #endif #ifdef CONFIG_DEBUG_UART
SPL boot is slow on the ZynqMP because of this delay. The initialization done in psu_init no longer requires an external delay, so this can be removed to speed up the SPL boot flow considerably. Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> --- board/xilinx/zynqmp/zynqmp.c | 4 ---- 1 file changed, 4 deletions(-)