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This CL adds scripts to support updating ec image to the SPI flash by UUT(UART Update Tool) for npcx ec. A new array BOARDS_NPCX_UUT is introduced to include the board name which will use the UUT mechanism. The detail of test setup/procedure is listed below: 1. Connect the following singals between npcx7 evb and Servo board v2. NPCX7 EVB Servo V2 --------------------------------------- GPIO64/CR_SIN <--> UART1_SERVO_DUT_TX GPIO65/CR_SOUT <--> UART1_DUT_SERVO_TX VDD_3.3V <--> PPDUT_UART1_VREF 2. Manually pull the UUT mode strap pin(GPIO65/CR_SOUT) to ground with a 10 KOhm resistor. 3. Assert a EC VCC1_RST reset or issue a Power-Up reset. 4. Remove the pull-down in step 2. 5. Move npcx7_evb from array BOARDS_NPCX_7M6X_JTAG to BOARDS_NPCX_UUT in flash_ec. 6. ./util/flash_ec --board=npcx7_evb. BRANCH=none BUG=none TEST=Follow the steps above. Dump the SPI flash content to a file via JTAG. Compare the file and ec image. Make sure their content is all the same. Check the ec can reboot after programming. Run "sysjump rw"; make sure RW image works well. Change-Id: Iada5acb53179bdb78459c4fea7488fd2691575b6 Signed-off-by: CHLin <CHLIN56@nuvoton.com> Reviewed-on: https://chromium-review.googlesource.com/826763 Commit-Ready: CH Lin <chlin56@nuvoton.com> Tested-by: CH Lin <chlin56@nuvoton.com> Reviewed-by: Shawn N <shawnn@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly