[ARM] 3217/1: iop331 uarts as platform devices

Patch from Dan Williams

Convert old-style serial devices to platform devices so that printk's are visible during the boot process.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 68 insertions, 26 deletions

diff --git a/arch/arm/mach-iop3xx/iop331-setup.c b/arch/arm/mach-iop3xx/iop331-setup.c
index 53f60614498b..e6ea1cba6a17 100644
--- a/arch/arm/mach-iop3xx/iop331-setup.c
+++ b/arch/arm/mach-iop3xx/iop331-setup.c
@@ -18,7 +18,7 @@
 #include <linux/platform_device.h>
 #include <linux/serial.h>
 #include <linux/tty.h>
-#include <linux/serial_core.h>
+#include <linux/serial_8250.h>
 
 #include <asm/io.h>
 #include <asm/pgtable.h>
@@ -50,32 +50,74 @@ static struct map_desc iop331_std_desc[] __initdata = {
         }
 };
 
-static struct uart_port iop331_serial_ports[] = {
-        {
-                .membase        = (char*)(IOP331_UART0_VIRT),
-                .mapbase        = (IOP331_UART0_PHYS),
-                .irq            = IRQ_IOP331_UART0,
-                .flags          = UPF_SKIP_TEST,
-                .iotype         = UPIO_MEM,
-                .regshift       = 2,
-                .uartclk        = IOP331_UART_XTAL,
-                .line           = 0,
-                .type           = PORT_XSCALE,
-                .fifosize       = 32
-        } , {
-                .membase        = (char*)(IOP331_UART1_VIRT),
-                .mapbase        = (IOP331_UART1_PHYS),
-                .irq            = IRQ_IOP331_UART1,
-                .flags          = UPF_SKIP_TEST,
-                .iotype         = UPIO_MEM,
-                .regshift       = 2,
-                .uartclk        = IOP331_UART_XTAL,
-                .line           = 1,
-                .type           = PORT_XSCALE,
-                .fifosize       = 32
+static struct resource iop33x_uart0_resources[] = {
+        [0] = {
+                .start = IOP331_UART0_PHYS,
+                .end = IOP331_UART0_PHYS + 0x3f,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = IRQ_IOP331_UART0,
+                .end = IRQ_IOP331_UART0,
+                .flags = IORESOURCE_IRQ
+        }
+};
+
+static struct resource iop33x_uart1_resources[] = {
+        [0] = {
+                .start = IOP331_UART1_PHYS,
+                .end = IOP331_UART1_PHYS + 0x3f,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = IRQ_IOP331_UART1,
+                .end = IRQ_IOP331_UART1,
+                .flags = IORESOURCE_IRQ
         }
 };
 
+static struct plat_serial8250_port iop33x_uart0_data[] = {
+        {
+       .membase     = (char*)(IOP331_UART0_VIRT),
+       .mapbase     = (IOP331_UART0_PHYS),
+       .irq         = IRQ_IOP331_UART0,
+       .uartclk     = IOP331_UART_XTAL,
+       .regshift    = 2,
+       .iotype      = UPIO_MEM,
+       .flags       = UPF_SKIP_TEST,
+        },
+        {  },
+};
+
+static struct plat_serial8250_port iop33x_uart1_data[] = {
+        {
+       .membase     = (char*)(IOP331_UART1_VIRT),
+       .mapbase     = (IOP331_UART1_PHYS),
+       .irq         = IRQ_IOP331_UART1,
+       .uartclk     = IOP331_UART_XTAL,
+       .regshift    = 2,
+       .iotype      = UPIO_MEM,
+       .flags       = UPF_SKIP_TEST,
+        },
+        {  },
+};
+
+static struct platform_device iop33x_uart0 = {
+       .name = "serial8250",
+       .id = 0,
+       .dev.platform_data = iop33x_uart0_data,
+       .num_resources = 2,
+       .resource = iop33x_uart0_resources,
+};
+
+static struct platform_device iop33x_uart1 = {
+       .name = "serial8250",
+       .id = 1,
+       .dev.platform_data = iop33x_uart1_data,
+       .num_resources = 2,
+       .resource = iop33x_uart1_resources,
+};
+
 static struct resource iop33x_i2c_0_resources[] = {
         [0] = {
                 .start = 0xfffff680,
@@ -117,6 +159,8 @@ static struct platform_device iop33x_i2c_1_controller = {
 };
 
 static struct platform_device *iop33x_devices[] __initdata = {
+        &iop33x_uart0,
+        &iop33x_uart1,
         &iop33x_i2c_0_controller,
         &iop33x_i2c_1_controller
 };
@@ -133,8 +177,6 @@ void __init iop33x_init(void)
 void __init iop331_map_io(void)
 {
         iotable_init(iop331_std_desc, ARRAY_SIZE(iop331_std_desc));
-        early_serial_setup(&iop331_serial_ports[0]);
-        early_serial_setup(&iop331_serial_ports[1]);
 }
 
 #ifdef CONFIG_ARCH_IOP331