diff options
| author | Furquan Shaikh <furquan@google.com> | 2014-08-12 17:20:42 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-03-26 00:27:10 +0100 |
| commit | 1fb6c01688d2728317f6a533302e51ef6c9c5fd1 (patch) | |
| tree | 8c220880ad23699b79bcfb3f2b05e2405f48e78c | |
| parent | 2296774af67f2fd728c662d5120e29b849b4d685 (diff) | |
rush: support for DMA region
Currently rush 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 the changes for adding non-cacheable memory range and adding DMA
region, booting from USB reaches same point as MMC.
Change-Id: I82d97840fad8cc96bf958c6efa13d2fdc1233d79
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: b182651a1b6db1a7adbf315b6865467590a0785c
Original-Change-Id: I6a465eaa77e0d5ab4d5fb22161e88e7a5fd9c4a8
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/212193
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/8928
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
| -rw-r--r-- | src/mainboard/google/rush/Kconfig | 8 | ||||
| -rw-r--r-- | src/mainboard/google/rush/mainboard.c | 21 |
2 files changed, 29 insertions, 0 deletions
diff --git a/src/mainboard/google/rush/Kconfig b/src/mainboard/google/rush/Kconfig index eaae86ce8c..f723a6c10d 100644 --- a/src/mainboard/google/rush/Kconfig +++ b/src/mainboard/google/rush/Kconfig @@ -95,4 +95,12 @@ config EC_GOOGLE_CHROMEEC_SPI_BUS hex default 1 +config DRAM_DMA_START + hex + default 0xc0000000 + +config DRAM_DMA_SIZE + hex + default 0x00200000 + endif # BOARD_GOOGLE_RUSH diff --git a/src/mainboard/google/rush/mainboard.c b/src/mainboard/google/rush/mainboard.c index c4b0b441c4..35417f07ce 100644 --- a/src/mainboard/google/rush/mainboard.c +++ b/src/mainboard/google/rush/mainboard.c @@ -17,9 +17,11 @@ * 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/clock.h> #include <soc/nvidia/tegra132/clk_rst.h> #include <soc/nvidia/tegra132/spi.h> @@ -86,3 +88,22 @@ struct chip_operations mainboard_ops = { .name = "rush", .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; +} |