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authorMichal Simek <michal.simek@xilinx.com>2019-01-28 11:12:41 +0100
committerMichal Simek <michal.simek@xilinx.com>2019-02-14 14:31:10 +0100
commit47a766f95015e17f32f2467984a1e018964bcffc (patch)
tree5d076abc6a218e398d77d6dc776ef8069075f9a1
parentfb771793bd5daa8b4dcf5664ea0cf02b1ca2ae0f (diff)
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arm64: versal: Move IOU_SWITCH_DIVISOR0 to Kconfig
Move hardcoded IOU_SWITCH_DIVISOR0 to Kconfig to be able to set it up for different platforms. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
-rw-r--r--arch/arm/mach-versal/Kconfig6
-rw-r--r--board/xilinx/versal/board.c5
2 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/mach-versal/Kconfig b/arch/arm/mach-versal/Kconfig
index f291800..26d1756 100644
--- a/arch/arm/mach-versal/Kconfig
+++ b/arch/arm/mach-versal/Kconfig
@@ -41,6 +41,12 @@ config VERSAL_OF_BOARD_DTB_ADDR
default 0x1000
depends on OF_BOARD
+config IOU_SWITCH_DIVISOR0
+ hex "IOU switch divisor0"
+ default 0x20
+ help
+ Setup time clock divisor for input clock.
+
config SYS_MEM_RSVD_FOR_MMU
bool "Reserve memory for MMU Table"
help
diff --git a/board/xilinx/versal/board.c b/board/xilinx/versal/board.c
index fe61125..9075147 100644
--- a/board/xilinx/versal/board.c
+++ b/board/xilinx/versal/board.c
@@ -26,8 +26,11 @@ int board_early_init_r(void)
if (current_el() != 3)
return 0;
+ debug("iou_switch ctrl div0 %x\n",
+ readl(&crlapb_base->iou_switch_ctrl));
+
writel(IOU_SWITCH_CTRL_CLKACT_BIT |
- (0x20 << IOU_SWITCH_CTRL_DIVISOR0_SHIFT),
+ (CONFIG_IOU_SWITCH_DIVISOR0 << IOU_SWITCH_CTRL_DIVISOR0_SHIFT),
&crlapb_base->iou_switch_ctrl);
/* Global timer init - Program time stamp reference clk */