From: Simon Glass Date: Tue, 19 Jan 2016 03:19:19 +0000 (-0700) Subject: dm: x86: Add a driver for Intel PCH9 X-Git-Tag: v2016.03-rc1~143 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=81afac123896cdd560411f78f673d5bdccbcafbb;p=oweals%2Fu-boot.git dm: x86: Add a driver for Intel PCH9 At some point we may need to distinguish between different types of PCHs, but for existing supported platforms we only need to worry about version 7 and version 9 bridges. Add a driver for the PCH9. Signed-off-by: Simon Glass Reviewed-by: Bin Meng --- diff --git a/drivers/pch/Makefile b/drivers/pch/Makefile index 33aa727017..dde9e86d4e 100644 --- a/drivers/pch/Makefile +++ b/drivers/pch/Makefile @@ -4,3 +4,4 @@ obj-y += pch-uclass.o obj-y += pch7.o +obj-y += pch9.o diff --git a/drivers/pch/pch9.c b/drivers/pch/pch9.c new file mode 100644 index 0000000000..529cb023e2 --- /dev/null +++ b/drivers/pch/pch9.c @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2014 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include + +#define SBASE_ADDR 0x54 + +static int pch9_get_sbase(struct udevice *dev, ulong *sbasep) +{ + uint32_t sbase_addr; + + dm_pci_read_config32(dev, SBASE_ADDR, &sbase_addr); + *sbasep = sbase_addr & 0xfffffe00; + + return 0; +} + +static enum pch_version pch9_get_version(struct udevice *dev) +{ + return PCHV_9; +} + +static const struct pch_ops pch9_ops = { + .get_sbase = pch9_get_sbase, + .get_version = pch9_get_version, +}; + +static const struct udevice_id pch9_ids[] = { + { .compatible = "intel,pch9" }, + { } +}; + +U_BOOT_DRIVER(pch9_drv) = { + .name = "intel-pch9", + .id = UCLASS_PCH, + .of_match = pch9_ids, + .ops = &pch9_ops, +};