Blackfin: add UART/SPORT early platform resources

This lets people easily select the UART/SPORT consoles for early printk
while leveraging the pins declared in the boards file.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index df4b6b5c08d4..3cb20d7efbdb 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -1969,6 +1969,34 @@ static int __init stamp_init(void)
 
 arch_initcall(stamp_init);
 
+
+static struct platform_device *stamp_early_devices[] __initdata = {
+#if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
+#ifdef CONFIG_SERIAL_BFIN_UART0
+        &bfin_uart0_device,
+#endif
+#ifdef CONFIG_SERIAL_BFIN_UART1
+        &bfin_uart1_device,
+#endif
+#endif
+
+#if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
+#ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
+        &bfin_sport0_uart_device,
+#endif
+#ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
+        &bfin_sport1_uart_device,
+#endif
+#endif
+};
+
+void __init native_machine_early_platform_add_devices(void)
+{
+        printk(KERN_INFO "register early platform devices\n");
+        early_platform_add_devices(stamp_early_devices,
+                ARRAY_SIZE(stamp_early_devices));
+}
+
 void native_machine_restart(char *cmd)
 {
         /* workaround reboot hang when booting from SPI */