diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/Makefile | 1 | ||||
| -rw-r--r-- | drivers/cache/Kconfig | 16 | ||||
| -rw-r--r-- | drivers/cache/Makefile | 3 | ||||
| -rw-r--r-- | drivers/cache/cache-uclass.c | 24 | ||||
| -rw-r--r-- | drivers/cache/sandbox_cache.c | 34 |
6 files changed, 80 insertions, 0 deletions
diff --git a/drivers/Kconfig b/drivers/Kconfig index e6702eced4..96ff4f566a 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -14,6 +14,8 @@ source "drivers/block/Kconfig" source "drivers/bootcount/Kconfig" +source "drivers/cache/Kconfig" + source "drivers/clk/Kconfig" source "drivers/cpu/Kconfig" diff --git a/drivers/Makefile b/drivers/Makefile index a7bba3ed56..0a00096332 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -77,6 +77,7 @@ obj-$(CONFIG_BIOSEMU) += bios_emulator/ obj-y += block/ obj-y += board/ obj-$(CONFIG_BOOTCOUNT_LIMIT) += bootcount/ +obj-y += cache/ obj-$(CONFIG_CPU) += cpu/ obj-y += crypto/ obj-$(CONFIG_FASTBOOT) += fastboot/ diff --git a/drivers/cache/Kconfig b/drivers/cache/Kconfig new file mode 100644 index 0000000000..8b7c9c7f9f --- /dev/null +++ b/drivers/cache/Kconfig @@ -0,0 +1,16 @@ +# +# Cache controllers +# + +menu "Cache Controller drivers" + +config CACHE + bool "Enable Driver Model for Cache controllers" + depends on DM + help + Enable driver model for cache controllers that are found on + most CPU's. Cache is memory that the CPU can access directly and + is usually located on the same chip. This uclass can be used for + configuring settings that be found from a device tree file. + +endmenu diff --git a/drivers/cache/Makefile b/drivers/cache/Makefile new file mode 100644 index 0000000000..2ba68060c1 --- /dev/null +++ b/drivers/cache/Makefile @@ -0,0 +1,3 @@ + +obj-$(CONFIG_CACHE) += cache-uclass.o +obj-$(CONFIG_SANDBOX) += sandbox_cache.o diff --git a/drivers/cache/cache-uclass.c b/drivers/cache/cache-uclass.c new file mode 100644 index 0000000000..97ce0249a4 --- /dev/null +++ b/drivers/cache/cache-uclass.c @@ -0,0 +1,24 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +#include <common.h> +#include <cache.h> +#include <dm.h> + +int cache_get_info(struct udevice *dev, struct cache_info *info) +{ + struct cache_ops *ops = cache_get_ops(dev); + + if (!ops->get_info) + return -ENOSYS; + + return ops->get_info(dev, info); +} + +UCLASS_DRIVER(cache) = { + .id = UCLASS_CACHE, + .name = "cache", + .post_bind = dm_scan_fdt_dev, +}; diff --git a/drivers/cache/sandbox_cache.c b/drivers/cache/sandbox_cache.c new file mode 100644 index 0000000000..14cc6b0c0a --- /dev/null +++ b/drivers/cache/sandbox_cache.c @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +#include <common.h> +#include <cache.h> +#include <dm.h> +#include <errno.h> + +DECLARE_GLOBAL_DATA_PTR; + +static int sandbox_get_info(struct udevice *dev, struct cache_info *info) +{ + info->base = 0x11223344; + + return 0; +} + +static const struct cache_ops sandbox_cache_ops = { + .get_info = sandbox_get_info, +}; + +static const struct udevice_id sandbox_cache_ids[] = { + { .compatible = "sandbox,cache" }, + { } +}; + +U_BOOT_DRIVER(cache_sandbox) = { + .name = "cache_sandbox", + .id = UCLASS_CACHE, + .of_match = sandbox_cache_ids, + .ops = &sandbox_cache_ops, +}; |