exynos: Enable PSHOLD in SPL

There is quite a tight deadline in enabling PSHOLD, less than a second. In some cases (e.g. with USB download), U-Boot takes longer than that to load, so the board powers off before U-Boot starts. Add a call in SPL to enable PSHOLD. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

exynos: Enable PSHOLD in SPL
There is quite a tight deadline in enabling PSHOLD, less than a second. In some cases (e.g. with USB download), U-Boot takes longer than that to load, so the board powers off before U-Boot starts. Add a call in SPL to enable PSHOLD. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Simon Glass · Minkyu Kang · Eric Lee · Eric Lee · Eric Lee · Eric Lee
1 parent 0f2e739c99
Showing 1 changed file with 2 additions and 0 deletions Side-by-side Diff
arch/arm/cpu/armv7/exynos/lowlevel_init.c
@@ -48,6 +48,8 @@
  
 	arch_cpu_init();
  
+	set_ps_hold_ctrl();
+
 	reset_status = get_reset_status();
  
 	switch (reset_status) {
...	...	@@ -48,6 +48,8 @@
48	48
49	49	arch_cpu_init();
50	50
	51	+ set_ps_hold_ctrl();
	52	+
51	53	reset_status = get_reset_status();
52	54
53	55	switch (reset_status) {