From ca2ed9f450682c5f23ee1f3affac8b6dba7fdc0b Mon Sep 17 00:00:00 2001 From: Justin TerAvest Date: Wed, 17 Jan 2018 16:36:30 -0800 Subject: sconfig: Add a new mmio resource type Add support for a mmio resource in the devicetree to allow memory-mapped IO addresses to be assigned to given values. AMD platforms perform a significant amount of configuration through these MMIO addresses, including I2C bus configuration. BUG=b:72121803 Change-Id: I5608721c22c1b229f527815b5f17fff3a080c3c8 Signed-off-by: Justin TerAvest Reviewed-on: https://review.coreboot.org/23319 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin Reviewed-by: Furquan Shaikh --- src/include/device/path.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/include/device/path.h') diff --git a/src/include/device/path.h b/src/include/device/path.h index 5109fdaec3..eaa9cc7d67 100644 --- a/src/include/device/path.h +++ b/src/include/device/path.h @@ -15,6 +15,7 @@ enum device_path_type { DEVICE_PATH_IOAPIC, DEVICE_PATH_GENERIC, DEVICE_PATH_SPI, + DEVICE_PATH_MMIO, /* * When adding path types to this table, please also update the @@ -36,6 +37,7 @@ enum device_path_type { "DEVICE_PATH_IOAPIC", \ "DEVICE_PATH_GENERIC", \ "DEVICE_PATH_SPI", \ + "DEVICE_PATH_MMIO", \ } struct domain_path { @@ -89,6 +91,9 @@ struct generic_path { unsigned int subid; }; +struct mmio_path { + uintptr_t addr; +}; struct device_path { enum device_path_type type; @@ -104,6 +109,7 @@ struct device_path { struct cpu_bus_path cpu_bus; struct generic_path generic; struct spi_path spi; + struct mmio_path mmio; }; }; -- cgit v1.2.3