preliminary ixp4xx 2.6.28 support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13548 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 101 insertions, 0 deletions

diff --git a/target/linux/ixp4xx/patches-2.6.28/191-cambria_optional_uart.patch b/target/linux/ixp4xx/patches-2.6.28/191-cambria_optional_uart.patch
new file mode 100644
index 000000000..946d685a1
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.28/191-cambria_optional_uart.patch
@@ -0,0 +1,101 @@
+--- a/arch/arm/mach-ixp4xx/cambria-setup.c
++++ b/arch/arm/mach-ixp4xx/cambria-setup.c
+@@ -34,6 +34,7 @@
+ #include <asm/mach/arch.h>
+ #include <asm/mach/flash.h>
+ #include <asm/setup.h>
++#include <linux/irq.h>
+ 
+ struct cambria_board_info {
+ 	unsigned char	*model;
+@@ -127,6 +128,43 @@ static struct platform_device cambria_ua
+ 	.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
+@@ -283,6 +321,19 @@ static void __init cambria_gw23xx_setup(
+ 
+ static void __init cambria_gw2350_setup(void)
+ {
++	*IXP4XX_EXP_CS2 = 0xbfff0003;
++	set_irq_type(IRQ_IXP4XX_GPIO3, IRQ_TYPE_EDGE_RISING);
++	cambria_optional_uart_data[0].mapbase	= 0x52FF0000;
++	cambria_optional_uart_data[0].membase	= (void __iomem *)ioremap(0x52FF0000, 0x0fff);
++	cambria_optional_uart_data[0].irq		= IRQ_IXP4XX_GPIO3;
++
++	*IXP4XX_EXP_CS3 = 0xbfff0003;
++	set_irq_type(IRQ_IXP4XX_GPIO4, IRQ_TYPE_EDGE_RISING);
++	cambria_optional_uart_data[1].mapbase	= 0x53FF0000;
++	cambria_optional_uart_data[1].membase	= (void __iomem *)ioremap(0x53FF0000, 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);
+ 
+@@ -290,10 +341,26 @@ static void __init cambria_gw2350_setup(
+ 	platform_device_register(&cambria_usb1_device);
+ 
+ 	platform_device_register(&cambria_gpio_leds_device);
++
++	*IXP4XX_EXP_CS2 = 0xBFFF3C43;
++	*IXP4XX_EXP_CS3 = 0xBFFF3C43;
+ }
+ 
+ static void __init cambria_gw2358_setup(void)
+ {
++	*IXP4XX_EXP_CS3 = 0xbfff0003;
++	set_irq_type(IRQ_IXP4XX_GPIO3, IRQ_TYPE_EDGE_RISING);
++	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;
++
++	set_irq_type(IRQ_IXP4XX_GPIO4, IRQ_TYPE_EDGE_RISING);
++	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);
+