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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/arm/plat-mxc/audmux-v1.c
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/plat-mxc/audmux-v1.c')
-rw-r--r--arch/arm/plat-mxc/audmux-v1.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/audmux-v1.c b/arch/arm/plat-mxc/audmux-v1.c
new file mode 100644
index 00000000000..1180bef7664
--- /dev/null
+++ b/arch/arm/plat-mxc/audmux-v1.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * Initial development of this code was funded by
+ * Phytec Messtechnik GmbH, http://www.phytec.de
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <mach/audmux.h>
+#include <mach/hardware.h>
+
+static void __iomem *audmux_base;
+
+static unsigned char port_mapping[] = {
+ 0x0, 0x4, 0x8, 0x10, 0x14, 0x1c,
+};
+
+int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr)
+{
+ if (!audmux_base) {
+ printk("%s: not configured\n", __func__);
+ return -ENOSYS;
+ }
+
+ if (port >= ARRAY_SIZE(port_mapping))
+ return -EINVAL;
+
+ writel(pcr, audmux_base + port_mapping[port]);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mxc_audmux_v1_configure_port);
+
+static int mxc_audmux_v1_init(void)
+{
+#ifdef CONFIG_MACH_MX21
+ if (cpu_is_mx21())
+ audmux_base = MX21_IO_ADDRESS(MX21_AUDMUX_BASE_ADDR);
+ else
+#endif
+#ifdef CONFIG_MACH_MX27
+ if (cpu_is_mx27())
+ audmux_base = MX27_IO_ADDRESS(MX27_AUDMUX_BASE_ADDR);
+ else
+#endif
+ (void)0;
+
+ return 0;
+}
+
+postcore_initcall(mxc_audmux_v1_init);