davinci: Move serial platform_device into SoC-specific files

Currently, there is one set of platform_device and platform_data
structures for all DaVinci SoCs.  The differences in the data
between the various SoCs is handled by davinci_serial_init()
by checking the SoC type.  However, as new SoCs appear, this
routine will become more & more cluttered.

To clean up the routine and make it easier to add support for new
SoCs, move the platform_device and platform_data structures into the
SoC-specific code and use the SoC infrastructure to provide access
to the data.

In the process, fix a bug where the wrong irq is used for uart2
of the dm646x.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index f980c2f95de4..544658e58854 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/clk.h>
+#include <linux/serial_8250.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 
@@ -24,6 +25,7 @@
 #include <mach/psc.h>
 #include <mach/mux.h>
 #include <mach/time.h>
+#include <mach/serial.h>
 #include <mach/common.h>
 
 #include "clock.h"
@@ -552,6 +554,44 @@ struct davinci_timer_info dm646x_timer_info = {
         .clocksource_id = T0_TOP,
 };
 
+static struct plat_serial8250_port dm646x_serial_platform_data[] = {
+        {
+                .mapbase        = DAVINCI_UART0_BASE,
+                .irq            = IRQ_UARTINT0,
+                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
+                                  UPF_IOREMAP,
+                .iotype         = UPIO_MEM32,
+                .regshift       = 2,
+        },
+        {
+                .mapbase        = DAVINCI_UART1_BASE,
+                .irq            = IRQ_UARTINT1,
+                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
+                                  UPF_IOREMAP,
+                .iotype         = UPIO_MEM32,
+                .regshift       = 2,
+        },
+        {
+                .mapbase        = DAVINCI_UART2_BASE,
+                .irq            = IRQ_DM646X_UARTINT2,
+                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
+                                  UPF_IOREMAP,
+                .iotype         = UPIO_MEM32,
+                .regshift       = 2,
+        },
+        {
+                .flags          = 0
+        },
+};
+
+static struct platform_device dm646x_serial_device = {
+        .name                   = "serial8250",
+        .id                     = PLAT8250_DEV_PLATFORM,
+        .dev                    = {
+                .platform_data  = dm646x_serial_platform_data,
+        },
+};
+
 static struct davinci_soc_info davinci_soc_info_dm646x = {
         .io_desc                = dm646x_io_desc,
         .io_desc_num            = ARRAY_SIZE(dm646x_io_desc),
@@ -573,6 +613,7 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
         .gpio_base              = IO_ADDRESS(DAVINCI_GPIO_BASE),
         .gpio_num               = 43, /* Only 33 usable */
         .gpio_irq               = IRQ_DM646X_GPIOBNK0,
+        .serial_dev             = &dm646x_serial_device,
 };
 
 void __init dm646x_init(void)