[PATCH V2 4/5] board: beagle: beagleplay: Configure debounce registers
Nishanth Menon
nm at ti.com
Tue Feb 20 19:39:51 CET 2024
Configure the debounce configuration that makes sense for BeaglePlay
usage model.
Signed-off-by: Nishanth Menon <nm at ti.com>
---
Changes since V1:
* No change
V1: https://lore.kernel.org/r/20240212155332.541949-5-nm@ti.com
board/beagle/beagleplay/beagleplay.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/board/beagle/beagleplay/beagleplay.c b/board/beagle/beagleplay/beagleplay.c
index 2adb2517ef00..fe1c4f920329 100644
--- a/board/beagle/beagleplay/beagleplay.c
+++ b/board/beagle/beagleplay/beagleplay.c
@@ -59,8 +59,32 @@ static void crystal_32k_enable(void)
}
}
+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
--
2.43.0
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