From: Nishanth Menon <nm@ti.com>
Date: Tue, 20 Feb 2024 18:39:51 +0000 (-0600)
Subject: board: beagle: beagleplay: Configure debounce registers
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=1b61f76a876031b465314c0a09a37247a5544f88;p=u-boot.git

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 2adb2517ef..fe1c4f9203 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