board: beagle: beagleplay: Configure debounce registers
Configure the debounce configuration that makes sense for BeaglePlay
usage model.
Signed-off-by: Nishanth Menon <nm@ti.com>
diff --git a/board/beagle/beagleplay/beagleplay.c b/board/beagle/beagleplay/beagleplay.c
index 2adb251..fe1c4f9 100644
--- a/board/beagle/beagleplay/beagleplay.c
+++ b/board/beagle/beagleplay/beagleplay.c
@@ -59,8 +59,32 @@
}
}
+static void debounce_configure(void)
+{
+ /* Configure debounce one time from R5 */
+ if (IS_ENABLED(CONFIG_CPU_V7R)) {
+ /*
+ * Setup debounce time registers.
+ * arbitrary values. Times are approx
+ */
+ /* 1.9ms debounce @ 32k */
+ writel(0x1, CTRLMMR_DBOUNCE_CFG(1));
+ /* 5ms debounce @ 32k */
+ writel(0x5, CTRLMMR_DBOUNCE_CFG(2));
+ /* 20ms debounce @ 32k */
+ writel(0x14, CTRLMMR_DBOUNCE_CFG(3));
+ /* 46ms debounce @ 32k */
+ writel(0x18, CTRLMMR_DBOUNCE_CFG(4));
+ /* 100ms debounce @ 32k */
+ writel(0x1c, CTRLMMR_DBOUNCE_CFG(5));
+ /* 156ms debounce @ 32k */
+ writel(0x1f, CTRLMMR_DBOUNCE_CFG(6));
+ }
+}
+
void spl_board_init(void)
{
crystal_32k_enable();
+ debounce_configure();
}
#endif