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authorSascha Hauer <s.hauer@pengutronix.de>2008-07-05 10:02:48 +0200
committerRobert Schwebel <r.schwebel@pengutronix.de>2008-07-05 10:02:48 +0200
commite3d13ff4b9d3b05d7a969153e2c049548e25deea (patch)
tree34210b2efa3d3c614f1a13797fb133e05d391045 /arch/arm
parentdf1bf4bdb2a3a26d4bde8ae1aefc16385dd4898f (diff)
mxc: add MX3 support for i.MX internal UART driver
This patch adds MX3 support for the i.MX internal uart driver. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-mx3/Makefile2
-rw-r--r--arch/arm/mach-mx3/devices.c153
2 files changed, 154 insertions, 1 deletions
diff --git a/arch/arm/mach-mx3/Makefile b/arch/arm/mach-mx3/Makefile
index febb37f2393..a788cb0b793 100644
--- a/arch/arm/mach-mx3/Makefile
+++ b/arch/arm/mach-mx3/Makefile
@@ -4,5 +4,5 @@
# Object file lists.
-obj-y := mm.o time.o clock.o
+obj-y := mm.o time.o clock.o devices.o
obj-$(CONFIG_MACH_MX31ADS) += mx31ads.o
diff --git a/arch/arm/mach-mx3/devices.c b/arch/arm/mach-mx3/devices.c
new file mode 100644
index 00000000000..1bc6d23a1d5
--- /dev/null
+++ b/arch/arm/mach-mx3/devices.c
@@ -0,0 +1,153 @@
+/*
+ * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Sascha Hauer, kernel@pengutronix.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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/serial.h>
+#include <asm/hardware.h>
+#include <asm/arch/imx-uart.h>
+
+static struct resource uart0[] = {
+ {
+ .start = UART1_BASE_ADDR,
+ .end = UART1_BASE_ADDR + 0x0B5,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = MXC_INT_UART1,
+ .end = MXC_INT_UART1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device mxc_uart_device0 = {
+ .name = "imx-uart",
+ .id = 0,
+ .resource = uart0,
+ .num_resources = ARRAY_SIZE(uart0),
+};
+
+static struct resource uart1[] = {
+ {
+ .start = UART2_BASE_ADDR,
+ .end = UART2_BASE_ADDR + 0x0B5,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = MXC_INT_UART2,
+ .end = MXC_INT_UART2,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device mxc_uart_device1 = {
+ .name = "imx-uart",
+ .id = 1,
+ .resource = uart1,
+ .num_resources = ARRAY_SIZE(uart1),
+};
+
+static struct resource uart2[] = {
+ {
+ .start = UART3_BASE_ADDR,
+ .end = UART3_BASE_ADDR + 0x0B5,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = MXC_INT_UART3,
+ .end = MXC_INT_UART3,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device mxc_uart_device2 = {
+ .name = "imx-uart",
+ .id = 2,
+ .resource = uart2,
+ .num_resources = ARRAY_SIZE(uart2),
+};
+
+static struct resource uart3[] = {
+ {
+ .start = UART4_BASE_ADDR,
+ .end = UART4_BASE_ADDR + 0x0B5,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = MXC_INT_UART4,
+ .end = MXC_INT_UART4,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device mxc_uart_device3 = {
+ .name = "imx-uart",
+ .id = 3,
+ .resource = uart3,
+ .num_resources = ARRAY_SIZE(uart3),
+};
+
+static struct resource uart4[] = {
+ {
+ .start = UART5_BASE_ADDR,
+ .end = UART5_BASE_ADDR + 0x0B5,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = MXC_INT_UART5,
+ .end = MXC_INT_UART5,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device mxc_uart_device4 = {
+ .name = "imx-uart",
+ .id = 4,
+ .resource = uart4,
+ .num_resources = ARRAY_SIZE(uart4),
+};
+
+/*
+ * Register only those UARTs that physically exist
+ */
+int __init imx_init_uart(int uart_no, struct imxuart_platform_data *pdata)
+{
+ switch (uart_no) {
+ case 0:
+ mxc_uart_device0.dev.platform_data = pdata;
+ platform_device_register(&mxc_uart_device0);
+ break;
+ case 1:
+ mxc_uart_device1.dev.platform_data = pdata;
+ platform_device_register(&mxc_uart_device1);
+ break;
+ case 2:
+ mxc_uart_device2.dev.platform_data = pdata;
+ platform_device_register(&mxc_uart_device2);
+ break;
+ case 3:
+ mxc_uart_device3.dev.platform_data = pdata;
+ platform_device_register(&mxc_uart_device3);
+ break;
+ case 4:
+ mxc_uart_device4.dev.platform_data = pdata;
+ platform_device_register(&mxc_uart_device4);
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ return 0;
+}
+