diff options
| author | Vincent Palatin <vpalatin@chromium.org> | 2018-05-18 15:47:45 +0200 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-06-04 17:23:27 -0700 |
| commit | eee7778fcfc5e555d119cff65caa7c045343e356 (patch) | |
| tree | a5e43bc8e5f85345f204b725a68cbdfcadd9f6a1 /chip/stm32/spi.c | |
| parent | b49d5872e9eacae9cee17c9bf011835bc5e3eb45 (diff) | |
| download | chrome-ec-eee7778fcfc5e555d119cff65caa7c045343e356.tar.gz | |
stm32: use D-cache on STM32H7
Enable the D-cache on STM32H7.
Use the ahb4 RAM region as uncached memory for DMA buffers.
Mark the serial, SPI and fingerprint DMA buffers as uncached for proper
operations.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=poppy
BUG=b:78535052, b:75068419
TEST=On ZerbleBarn, run fingerprint match.
CQ-DEPEND=CL:*616448
Change-Id: Ia33496ebde3508d3427e522cc7ba060829f8f3fd
Reviewed-on: https://chromium-review.googlesource.com/1065822
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Diffstat (limited to 'chip/stm32/spi.c')
| -rw-r--r-- | chip/stm32/spi.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/chip/stm32/spi.c b/chip/stm32/spi.c index 6cbb1a80e5..2cf604891e 100644 --- a/chip/stm32/spi.c +++ b/chip/stm32/spi.c @@ -15,6 +15,7 @@ #include "gpio.h" #include "hooks.h" #include "host_command.h" +#include "link_defs.h" #include "registers.h" #include "spi.h" #include "stm32-dma.h" @@ -111,8 +112,8 @@ static const uint8_t out_preamble[4] = { * message, including protocol overhead, and must be 32-bit aligned. */ static uint8_t out_msg[SPI_MAX_RESPONSE_SIZE + sizeof(out_preamble) + - EC_SPI_PAST_END_LENGTH] __aligned(4); -static uint8_t in_msg[SPI_MAX_REQUEST_SIZE] __aligned(4); + EC_SPI_PAST_END_LENGTH] __aligned(4) __uncached; +static uint8_t in_msg[SPI_MAX_REQUEST_SIZE] __aligned(4) __uncached; static uint8_t enabled; #ifdef CONFIG_SPI_PROTOCOL_V2 static struct host_cmd_handler_args args; |