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Commit ef21b491 authored by Pavel Machek's avatar Pavel Machek Committed by Olof Johansson
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socfpga: map uart into virtual address space so that early_printk() works 



Early printk code needs UART to be mapped early during
boot. early_printk() is left there during the start-up; it is useful
as our emulators are fairly slow.

Signed-off-by: default avatarPavel Machek <pavel@denx.de>
Acked-by: default avatarDinh Nguyen <dinguyen@altera.com>
[olof: removed redundant newlines]
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parent ad208d03

arch/arm/mach-socfpga/socfpga.c

+9 −0
Original line number Diff line number Diff line
@@ -37,6 +37,13 @@ static struct map_desc scu_io_desc __initdata = { 
	.type		= MT_DEVICE,

};



static struct map_desc uart_io_desc __initdata = {

	.virtual	= 0xfec02000,

	.pfn		= __phys_to_pfn(0xffc02000),

	.length		= SZ_8K,

	.type		= MT_DEVICE,

};



static void __init socfpga_scu_map_io(void)

{

	unsigned long base;
@@ -51,6 +58,8 @@ static void __init socfpga_scu_map_io(void) 
static void __init socfpga_map_io(void)

{

	socfpga_scu_map_io();

	iotable_init(&uart_io_desc, 1);

	early_printk("Early printk initialized\n");

}



const static struct of_device_id irq_match[] = {