diff options
| author | Marius Schilder <mschilder@google.com> | 2018-03-26 22:15:14 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-03-27 20:34:42 -0700 |
| commit | 62cd2cb56cee0655ce7ef18661058db7738d096e (patch) | |
| tree | f0d8c02fa2ff0146caca037bfbf2561f92d7b5ca /chip/g/spi_master.c | |
| parent | e23e0cf3c002a7ed40a6334b5e5141815691c612 (diff) | |
| download | chrome-ec-62cd2cb56cee0655ce7ef18661058db7738d096e.tar.gz | |
g: add stream sniffing for DUT spiflash content.
Use the stream signing mechanism to hook outgoing spiflash content.
This is (only?) used by Mn50 during chip production flows.
BUG=None
BRANCH=none
TEST=make buildall -j8
Signed-off-by: mschilder@google.com
Change-Id: Iccfee173865f587f088a31fcbc7b939823884c31
Reviewed-on: https://chromium-review.googlesource.com/981892
Commit-Ready: Marius Schilder <mschilder@chromium.org>
Tested-by: Marius Schilder <mschilder@chromium.org>
Reviewed-by: Marius Schilder <mschilder@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Diffstat (limited to 'chip/g/spi_master.c')
| -rw-r--r-- | chip/g/spi_master.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/chip/g/spi_master.c b/chip/g/spi_master.c index e3547d0d97..96acfa4315 100644 --- a/chip/g/spi_master.c +++ b/chip/g/spi_master.c @@ -12,6 +12,10 @@ #include "timer.h" #include "util.h" +#ifdef CONFIG_STREAM_SIGNATURE +#include "signing.h" +#endif + /* Not defined in the hardware register spec, the RX and TX buffers are 128B. */ #define SPI_BUF_SIZE 0x80 @@ -69,6 +73,13 @@ int spi_transaction(const struct spi_device_t *spi_device, /* Grab the port's mutex. */ mutex_lock(&spi_mutex[port]); +#ifdef CONFIG_STREAM_SIGNATURE + /* + * This hook allows mn50 to sniff data written to target + * manufactured H1 devices. + */ + sig_append(stream_spiflash, txdata, txlen); +#endif /* Copy the txdata into the 128B Transmit Buffer. */ memmove((uint8_t *)GREG32_ADDR_I(SPI, port, TX_DATA), txdata, txlen); |