openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ARM: ux500: Create a new of_dev_auxdata structure for u8540 enablement 

If we attempt to use the existing u8500 of_dev_auxdata struct to boot
the u8540, we fail to obtain a console, due to a lack of DMA support
on the platform.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Lee Jones 2013-04-02 14:21:53 +01:00 committed by Linus Walleij
parent 6c1d25b0b7
commit c21a43b775
1 changed files with 17 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
arch/arm/mach-ux500/cpu-db8500.c
View File

@ -292,6 +292,16 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
{},
};
static struct of_dev_auxdata u8540_auxdata_lookup[] __initdata = {
/* Requires DMA bindings. */
OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", NULL),
OF_DEV_AUXDATA("arm,pl011", 0x80121000, "uart1", NULL),
OF_DEV_AUXDATA("arm,pl011", 0x80007000, "uart2", NULL),
OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu",
&db8500_prcmu_pdata),
{},
};
static const struct of_device_id u8500_local_bus_nodes[] = {
/* only create devices below soc node */
{ .compatible = "stericsson,db8500", },
@ -318,8 +328,13 @@ static void __init u8500_init_machine(void)
/* TODO: Export SoC, USB, cpu-freq and DMA40 */
parent = u8500_of_init_devices();
/* automatically probe child nodes of db8500 device */
of_platform_populate(NULL, u8500_local_bus_nodes, u8500_auxdata_lookup, parent);
/* automatically probe child nodes of dbx5x0 devices */
if (of_machine_is_compatible("st-ericsson,u8540"))
of_platform_populate(NULL, u8500_local_bus_nodes,
u8540_auxdata_lookup, parent);
else
of_platform_populate(NULL, u8500_local_bus_nodes,
u8500_auxdata_lookup, parent);
}
static const char * stericsson_dt_platform_compat[] = {