From 196afe62d6b3e720295bbda046d260ccc6292a28 Mon Sep 17 00:00:00 2001
From: Angelo Dureghello <angelo@sysam.it>
Date: Wed, 13 Mar 2019 21:46:53 +0100
Subject: m68k: add dspi chip-select support

Signed-off-by: Angelo Dureghello <angelo@sysam.it>

Changes for v5:
- new patch
---
 arch/m68k/cpu/mcf5227x/dspi.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 arch/m68k/cpu/mcf5227x/dspi.c

(limited to 'arch/m68k/cpu/mcf5227x/dspi.c')

diff --git a/arch/m68k/cpu/mcf5227x/dspi.c b/arch/m68k/cpu/mcf5227x/dspi.c
new file mode 100644
index 0000000000..8fc4da271e
--- /dev/null
+++ b/arch/m68k/cpu/mcf5227x/dspi.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2019
+ * Angelo Dureghello <angleo@sysam.it>
+ *
+ * CPU specific dspi routines
+ */
+
+#include <common.h>
+#include <asm/immap.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_CF_DSPI
+void dspi_chip_select(int cs)
+{
+	struct gpio *gpio = (struct gpio *)MMAP_GPIO;
+
+	switch (cs) {
+	case 0:
+		clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_UNMASK);
+		setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
+		break;
+	case 2:
+		clrbits_8(&gpio->par_timer, ~GPIO_PAR_TIMER_T2IN_UNMASK);
+		setbits_8(&gpio->par_timer, GPIO_PAR_TIMER_T2IN_DSPIPCS2);
+		break;
+	}
+}
+
+void dspi_chip_unselect(int cs)
+{
+	struct gpio *gpio = (struct gpio *)MMAP_GPIO;
+
+	switch (cs) {
+	case 0:
+		clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
+		break;
+	case 2:
+		clrbits_8(&gpio->par_timer, ~GPIO_PAR_TIMER_T2IN_UNMASK);
+		break;
+	}
+}
+#endif /* CONFIG_CF_DSPI */
-- 
cgit