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.jo...@linaro.org>
---
arch/arm/mach-ux500/cpu-db8500.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index f1a5818..e027865 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -297,6 +297,16 @@ 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", },
@@ -323,8 +333,13 @@ 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[] = {
--
1.7.10.4
--
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