diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index cd5ecb60ea44da4b1a8f8d948b7b679dcc756804..43792bc80ade28844adcc6e49bac3d78e88759af 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -24,7 +24,6 @@ obj-$(CONFIG_I8254_TIMER) += i8254.o ifndef CONFIG_DM_PCI obj-$(CONFIG_PCI) += pci_type1.o endif -obj-y += pch-uclass.o obj-y += pirq_routing.o obj-y += relocate.o obj-y += physmem.o diff --git a/drivers/Makefile b/drivers/Makefile index 00da40b704a705c2ac4645b68b61b294f7dcddc8..6294048f2611488d30b7623a7a0a3a8321c36830 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -51,6 +51,7 @@ obj-y += hwmon/ obj-y += misc/ obj-y += pcmcia/ obj-y += dfu/ +obj-$(CONFIG_X86) += pch/ obj-y += rtc/ obj-y += sound/ obj-y += timer/ diff --git a/drivers/pch/Makefile b/drivers/pch/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..d69a99c22685c0cd93ee89c7a5b8704f33348666 --- /dev/null +++ b/drivers/pch/Makefile @@ -0,0 +1,5 @@ +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += pch-uclass.o diff --git a/arch/x86/lib/pch-uclass.c b/drivers/pch/pch-uclass.c similarity index 50% rename from arch/x86/lib/pch-uclass.c rename to drivers/pch/pch-uclass.c index 20dfa815d20c3847ec5cbceb74fdf86a11688def..4579ed12f65b5fb33809d2dc1d70d83e6623af22 100644 --- a/arch/x86/lib/pch-uclass.c +++ b/drivers/pch/pch-uclass.c @@ -7,10 +7,42 @@ #include <common.h> #include <dm.h> +#include <pch.h> #include <dm/root.h> DECLARE_GLOBAL_DATA_PTR; +int pch_get_sbase(struct udevice *dev, ulong *sbasep) +{ + struct pch_ops *ops = pch_get_ops(dev); + + *sbasep = 0; + if (!ops->get_sbase) + return -ENOSYS; + + return ops->get_sbase(dev, sbasep); +} + +enum pch_version pch_get_version(struct udevice *dev) +{ + struct pch_ops *ops = pch_get_ops(dev); + + if (!ops->get_version) + return -ENOSYS; + + return ops->get_version(dev); +} + +int pch_set_spi_protect(struct udevice *dev, bool protect) +{ + struct pch_ops *ops = pch_get_ops(dev); + + if (!ops->set_spi_protect) + return -ENOSYS; + + return ops->set_spi_protect(dev, protect); +} + static int pch_uclass_post_bind(struct udevice *bus) { /* diff --git a/include/pch.h b/include/pch.h new file mode 100644 index 0000000000000000000000000000000000000000..ff2686504593895ecc73726e7baabaffc975d0a2 --- /dev/null +++ b/include/pch.h @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2015 Google, Inc + * Written by Simon Glass <sjg@chromium.org> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __pch_h +#define __pch_h + +enum pch_version { + PCHV_UNKNOWN, + PCHV_7, + PCHV_9, +}; + +/* Operations for the Platform Controller Hub */ +struct pch_ops { + /** + * get_sbase() - get the address of SPI base + * + * @dev: PCH device to check + * @sbasep: Returns address of SPI base if available, else 0 + * @return 0 if OK, -ve on error (e.g. there is no SPI base) + */ + int (*get_sbase)(struct udevice *dev, ulong *sbasep); + + /** + * get_version() - get the PCH version + * + * @return version, or -ENOSYS if unknown + */ + enum pch_version (*get_version)(struct udevice *dev); + + /** + * set_spi_protect() - set whether SPI flash is protected or not + * + * @dev: PCH device to adjust + * @protect: true to protect, false to unprotect + * + * @return 0 on success, -ENOSYS if not implemented + */ + int (*set_spi_protect)(struct udevice *dev, bool protect); +}; + +#define pch_get_ops(dev) ((struct pch_ops *)(dev)->driver->ops) + +/** + * pch_get_sbase() - get the address of SPI base + * + * @dev: PCH device to check + * @sbasep: Returns address of SPI base if available, else 0 + * @return 0 if OK, -ve on error (e.g. there is no SPI base) + */ +int pch_get_sbase(struct udevice *dev, ulong *sbasep); + +/** + * pch_get_version() - get the PCH version + * + * @return version, or -ENOSYS if unknown + */ +enum pch_version pch_get_version(struct udevice *dev); + +/** + * set_spi_protect() - set whether SPI flash is protected or not + * + * @dev: PCH device to adjust + * @protect: true to protect, false to unprotect + * + * @return 0 on success, -ENOSYS if not implemented + */ +int pch_set_spi_protect(struct udevice *dev, bool protect); + +#endif