[U-Boot] [PATCH] ARM: omapl138_lcdk: Allow early init to start instruction cache
Currently the omapl138_lcdk has SKIP_LOWLEVEL_INIT set. The README states there is a variation of this for the ARM926EJ-S which allows the board to just skip the call to lowlevel_init() and do the normal CP15 init which enables the instruction cache.
On the da850evm, this was shown to improve startup time.
This patch switches SKIP_LOWLEVEL_INIT to SKIP_LOWLEVEL_INIT_ONLY thus, enabling the cache.
Signed-off-by: Adam Ford aford173@gmail.com
diff --git a/include/configs/omapl138_lcdk.h b/include/configs/omapl138_lcdk.h index 1c41e7e97a..3b5c085a24 100644 --- a/include/configs/omapl138_lcdk.h +++ b/include/configs/omapl138_lcdk.h @@ -23,7 +23,7 @@ #define CONFIG_SYS_TIMERBASE DAVINCI_TIMER0_BASE #define CONFIG_SYS_HZ_CLOCK clk_get(DAVINCI_AUXCLK_CLKID) #define CONFIG_SYS_HZ 1000 -#define CONFIG_SKIP_LOWLEVEL_INIT +#define CONFIG_SKIP_LOWLEVEL_INIT_ONLY
/* * Memory Info
niedz., 10 lis 2019 o 17:18 Adam Ford aford173@gmail.com napisał(a):
Currently the omapl138_lcdk has SKIP_LOWLEVEL_INIT set. The README states there is a variation of this for the ARM926EJ-S which allows the board to just skip the call to lowlevel_init() and do the normal CP15 init which enables the instruction cache.
On the da850evm, this was shown to improve startup time.
This patch switches SKIP_LOWLEVEL_INIT to SKIP_LOWLEVEL_INIT_ONLY thus, enabling the cache.
Signed-off-by: Adam Ford aford173@gmail.com
diff --git a/include/configs/omapl138_lcdk.h b/include/configs/omapl138_lcdk.h index 1c41e7e97a..3b5c085a24 100644 --- a/include/configs/omapl138_lcdk.h +++ b/include/configs/omapl138_lcdk.h @@ -23,7 +23,7 @@ #define CONFIG_SYS_TIMERBASE DAVINCI_TIMER0_BASE #define CONFIG_SYS_HZ_CLOCK clk_get(DAVINCI_AUXCLK_CLKID) #define CONFIG_SYS_HZ 1000 -#define CONFIG_SKIP_LOWLEVEL_INIT +#define CONFIG_SKIP_LOWLEVEL_INIT_ONLY
/*
- Memory Info
-- 2.20.1
Tested-by: Bartosz Golaszewski bgolaszewski@baylibre.com Reviewed-by: Bartosz Golaszewski bgolaszewski@baylibre.com
On Sun, Nov 10, 2019 at 10:17:58AM -0600, Adam Ford wrote:
Currently the omapl138_lcdk has SKIP_LOWLEVEL_INIT set. The README states there is a variation of this for the ARM926EJ-S which allows the board to just skip the call to lowlevel_init() and do the normal CP15 init which enables the instruction cache.
On the da850evm, this was shown to improve startup time.
This patch switches SKIP_LOWLEVEL_INIT to SKIP_LOWLEVEL_INIT_ONLY thus, enabling the cache.
Signed-off-by: Adam Ford aford173@gmail.com Tested-by: Bartosz Golaszewski bgolaszewski@baylibre.com Reviewed-by: Bartosz Golaszewski bgolaszewski@baylibre.com
diff --git a/include/configs/omapl138_lcdk.h b/include/configs/omapl138_lcdk.h index 1c41e7e97a..3b5c085a24 100644
Applied to u-boot/master, thanks!
participants (3)
-
Adam Ford -
Bartosz Golaszewski -
Tom Rini