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>

2 files changed, 154 insertions, 1 deletions

diff --git a/arch/arm/mach-mx3/Makefile b/arch/arm/mach-mx3/Makefile
index febb37f23935..a788cb0b793e 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 000000000000..1bc6d23a1d58
--- /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;
+}
+