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>

diff --git a/arch/arm/mach-versal/Kconfig b/arch/arm/mach-versal/Kconfig
index f291800..26d1756 100644 (file)
--- 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
 
        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
 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 (file)
--- 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;
 
        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 |
        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 */
               &crlapb_base->iou_switch_ctrl);
 
        /* Global timer init - Program time stamp reference clk */