diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2014-08-12 17:55:02 -0500 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-03-26 00:27:08 +0100 |
| commit | 6941b77c879b5411844914dd87796a28b04e3caa (patch) | |
| tree | 7b138b36106717660b44b7ed48b35783f1523d68 /src/mainboard | |
| parent | 4633dc1887057ac0b27502c6c719b332b46eb352 (diff) | |
ryu: support for DMA region
Currently ryu needs a DMA region in order to communicate with
USB devices. Therefore, add that region to the memory map.
BUG=chrome-os-partner:31293
BRANCH=None
TEST=With usb added am able to talk to a USB mass storage device
albeit inconsistently.
Change-Id: I7efaf2ba44cc94dc64af3f1cd916bdc5c7ff0795
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: e93389479518ee28dc3477da0c6e6e33fa8a47d1
Original-Change-Id: I6b5c052ccaafce30705349e07639dffbb994901f
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/212162
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/8926
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/rush_ryu/Kconfig | 8 | ||||
| -rw-r--r-- | src/mainboard/google/rush_ryu/mainboard.c | 20 |
2 files changed, 28 insertions, 0 deletions
diff --git a/src/mainboard/google/rush_ryu/Kconfig b/src/mainboard/google/rush_ryu/Kconfig index ec6eadb86b..c6929af589 100644 --- a/src/mainboard/google/rush_ryu/Kconfig +++ b/src/mainboard/google/rush_ryu/Kconfig @@ -91,4 +91,12 @@ config EC_GOOGLE_CHROMEEC_I2C_BUS hex default 1 +config DRAM_DMA_START + hex + default 0xc0000000 + +config DRAM_DMA_SIZE + hex + default 0x00200000 + endif # BOARD_GOOGLE_RUSH_RYU diff --git a/src/mainboard/google/rush_ryu/mainboard.c b/src/mainboard/google/rush_ryu/mainboard.c index 93ffca9adc..1e80b5b9b2 100644 --- a/src/mainboard/google/rush_ryu/mainboard.c +++ b/src/mainboard/google/rush_ryu/mainboard.c @@ -17,8 +17,10 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include <arch/mmu.h> #include <device/device.h> #include <boot/coreboot_tables.h> +#include <memrange.h> #include <soc/addressmap.h> #include <soc/clock.h> @@ -63,3 +65,21 @@ struct chip_operations mainboard_ops = { .name = "rush_ryu", .enable_dev = mainboard_enable, }; + +void mainboard_add_memory_ranges(struct memranges *map) +{ + /* Create non-cacheable region for DMA operations. */ + memranges_insert(map, CONFIG_DRAM_DMA_START, CONFIG_DRAM_DMA_SIZE, + MA_MEM | MA_MEM_NC | MA_NS | MA_RW); +} + +void lb_board(struct lb_header *header) +{ + struct lb_range *dma; + + dma = (struct lb_range *)lb_new_record(header); + dma->tag = LB_TAB_DMA; + dma->size = sizeof(*dma); + dma->range_start = CONFIG_DRAM_DMA_START; + dma->range_size = CONFIG_DRAM_DMA_SIZE; +} |