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author | Simon Glass <sjg@chromium.org> | 2015-03-26 09:29:27 -0600 |
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committer | Simon Glass <sjg@chromium.org> | 2015-04-18 11:11:14 -0600 |
commit | 452f5487536e9d5bf9bb7e515368f6deac7d61f5 (patch) | |
tree | f8ccb7bc81be57f8998bfcb6e64c4fd4f8620931 /arch/x86/lib | |
parent | ba4575626eddef71b5a8dc26dc4b267918b9438c (diff) | |
download | u-boot-imx-452f5487536e9d5bf9bb7e515368f6deac7d61f5.zip u-boot-imx-452f5487536e9d5bf9bb7e515368f6deac7d61f5.tar.gz u-boot-imx-452f5487536e9d5bf9bb7e515368f6deac7d61f5.tar.bz2 |
dm: x86: Add a uclass for a Platform Controller Hub
Add a simple uclass for this chip which is often found in x86 systems
where the CPU is a separate device.
The device can have children, so make it scan the device tree for these.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/lib')
-rw-r--r-- | arch/x86/lib/Makefile | 1 | ||||
-rw-r--r-- | arch/x86/lib/pch-uclass.c | 28 |
2 files changed, 29 insertions, 0 deletions
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 67a34d8..fe022f6 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_SYS_PCAT_TIMER) += pcat_timer.o ifndef CONFIG_DM_PCI obj-$(CONFIG_PCI) += pci_type1.o endif +obj-y += pch-uclass.o obj-y += relocate.o obj-y += physmem.o obj-$(CONFIG_X86_RAMTEST) += ramtest.o diff --git a/arch/x86/lib/pch-uclass.c b/arch/x86/lib/pch-uclass.c new file mode 100644 index 0000000..d1082e1 --- /dev/null +++ b/arch/x86/lib/pch-uclass.c @@ -0,0 +1,28 @@ +/* + * Copyright (c) 2015 Google, Inc + * Written by Simon Glass <sjg@chromium.org> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <dm/root.h> + +static int pch_uclass_post_bind(struct udevice *bus) +{ + /* + * Scan the device tree for devices + * + * Before relocation, only bind devices marked for pre-relocation + * use. + */ + return dm_scan_fdt_node(bus, gd->fdt_blob, bus->of_offset, + gd->flags & GD_FLG_RELOC ? false : true); +} + +UCLASS_DRIVER(pch) = { + .id = UCLASS_PCH, + .name = "pch", + .post_bind = pch_uclass_post_bind, +}; |