openwrt-xburst/target/linux/ixp4xx/patches-2.6.27/191-cambria_optional_uart.patch

--- a/arch/arm/mach-ixp4xx/cambria-setup.c
+++ b/arch/arm/mach-ixp4xx/cambria-setup.c
@@ -36,6 +36,7 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/flash.h>
+#include <linux/irq.h>
 
 struct cambria_board_info {
 	unsigned char	*model;
@@ -105,6 +106,43 @@
 	.resource	= &cambria_uart_resource,
 };
 
+static struct resource cambria_optional_uart_resources[] = {
+	{
+		.start	= 0x52000000,
+		.end	= 0x52000fff,
+		.flags	= IORESOURCE_MEM
+	},
+	{
+		.start	= 0x53000000,
+		.end	= 0x53000fff,
+		.flags	= IORESOURCE_MEM
+	}
+};
+
+static struct plat_serial8250_port cambria_optional_uart_data[] = {
+	{
+		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_BUGGY_UART,
+		.iotype		= UPIO_MEM,
+		.regshift	= 0,
+		.uartclk	= 1843200,
+	},
+	{
+		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_BUGGY_UART,
+		.iotype		= UPIO_MEM,
+		.regshift	= 0,
+		.uartclk	= 1843200,
+	},
+  { },
+};
+
+static struct platform_device cambria_optional_uart = {
+	.name		= "serial8250",
+	.id		= PLAT8250_DEV_PLATFORM1,
+	.dev.platform_data	= cambria_optional_uart_data,
+	.num_resources	= 2,
+	.resource	= cambria_optional_uart_resources,
+};
+
 static struct resource cambria_pata_resources[] = {
 	{
 		.flags	= IORESOURCE_MEM
@@ -287,6 +325,19 @@
 #ifdef CONFIG_SENSORS_EEPROM
 static void __init cambria_gw2350_setup(void)
 {
+	*IXP4XX_EXP_CS2 = 0xbfff0003;
+	set_irq_type(IRQ_IXP4XX_GPIO3, IRQ_TYPE_EDGE_BOTH);
+	cambria_optional_uart_data[0].mapbase	= IXP4XX_EXP_BUS_BASE(2);
+	cambria_optional_uart_data[0].membase	= (void __iomem *)ioremap(IXP4XX_EXP_BUS_BASE(2), 0x0fff);
+	cambria_optional_uart_data[0].irq		= IRQ_IXP4XX_GPIO3;
+
+	*IXP4XX_EXP_CS3 = 0xbfff0003;
+	set_irq_type(IRQ_IXP4XX_GPIO4, IRQ_TYPE_EDGE_BOTH);
+	cambria_optional_uart_data[1].mapbase	= IXP4XX_EXP_BUS_BASE(3);
+	cambria_optional_uart_data[1].membase	= (void __iomem *)ioremap(IXP4XX_EXP_BUS_BASE(3), 0x0fff);
+	cambria_optional_uart_data[1].irq		= IRQ_IXP4XX_GPIO4;
+
+	platform_device_register(&cambria_optional_uart);
 	platform_device_register(&cambria_npec_device);
 	platform_device_register(&cambria_npea_device);
 
@@ -298,6 +349,20 @@
 
 static void __init cambria_gw2358_setup(void)
 {
+	*IXP4XX_EXP_CS3 = 0xbfff0003;
+	set_irq_type(IRQ_IXP4XX_GPIO3, IRQ_TYPE_EDGE_BOTH);
+	cambria_optional_uart_data[0].mapbase	= 0x53FC0000;
+	cambria_optional_uart_data[0].membase	= (void __iomem *)ioremap(0x53FC0000, 0x0fff);
+	cambria_optional_uart_data[0].irq		= IRQ_IXP4XX_GPIO3;
+
+	*IXP4XX_EXP_CS3 = 0xbfff0003;
+	set_irq_type(IRQ_IXP4XX_GPIO4, IRQ_TYPE_EDGE_BOTH);
+	cambria_optional_uart_data[1].mapbase	= 0x53F80000;
+	cambria_optional_uart_data[1].membase	= (void __iomem *)ioremap(0x53F80000, 0x0fff);
+	cambria_optional_uart_data[1].irq		= IRQ_IXP4XX_GPIO4;
+
+	platform_device_register(&cambria_optional_uart);
+
 	platform_device_register(&cambria_npec_device);
 	platform_device_register(&cambria_npea_device);