diff mbox series

[U-Boot,5/6] arm64: versal: Move IOU_SWITCH_DIVISOR0 to Kconfig

Message ID e6ef2602d22d4122706443c57e3db213706ebbe1.1549360198.git.michal.simek@xilinx.com
State Accepted
Commit 47a766f95015e17f32f2467984a1e018964bcffc
Delegated to: Michal Simek
Headers show
Series arm64: versal: Misc patches | expand

Commit Message

Michal Simek Feb. 5, 2019, 9:50 a.m. UTC 
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>
---

 arch/arm/mach-versal/Kconfig | 6 ++++++
 board/xilinx/versal/board.c  | 5 ++++-
 2 files changed, 10 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/arm/mach-versal/Kconfig b/arch/arm/mach-versal/Kconfig
index f291800bc971..26d175637101 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 b49a4f473a72..b5ddd0c5ad24 100644
--- a/board/xilinx/versal/board.c
+++ b/board/xilinx/versal/board.c
@@ -28,8 +28,11 @@  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 */