3 Commits

Author	SHA1	Message	Date
Edward O'Callaghan	76c582d972	realtek_mst_i2c_spi.c: Fix _spi_send_command cb for erasures ... Before issuing SPI opcodes into 0x61 the top three BITS of 0x60 need to be carefully crafted. Correctly craft these in the case of SPI erasures and document this registers expectations. Clean up remaining debug comments while we are here. BUG=b:152558985,b:148745673 BRANCH=none TEST=flashrom -p realtek_mst_i2c_spi:bus=8 -E && flashrom -p realtek_mst_i2c_spi:bus=8 -r foo && hexdump -C foo Change-Id: Ib11ba8f63b11a1c5ebaa68deb7971648de8c2ecd Signed-off-by: Edward O'Callaghan <quasisec@google.com> Reviewed-on: https://review.coreboot.org/c/flashrom/+/41079 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Sam McNally <sammc@google.com>	2020-05-06 12:20:40 +00:00
Edward O'Callaghan	413d6ec673	realtek_mst_i2c_spi.c: Define some register names ... Try to document some of the register magics with plausible names for readability. BUG=b:152558985,b:148745673 BRANCH=none TEST=builds Change-Id: I97313f6f14438e4cbfc62faa7242cf6fc271f387 Signed-off-by: Edward O'Callaghan <quasisec@google.com> Reviewed-on: https://review.coreboot.org/c/flashrom/+/41022 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>	2020-05-05 00:41:38 +00:00
Edward O'Callaghan	d97f87b00c	Initial Realtek MST i2c_spi support ... This spi master allows for programming of a Realtek RTD2142 MST with external SPI flash chip routed via its internal i2c transport mechanism. BUG=b:152558985,b:148745673 BRANCH=none TEST=echo "00000000:0004ffff fw" > layout && \ flashrom -p realtek_mst_i2c_spi:bus=8 -l layout -i fw:dump.bin -r && \ flashrom -p realtek_mst_i2c_spi:bus=8 -l layout -i fw:dump.bin -w && \ flashrom -p realtek_mst_i2c_spi:bus=8 --flash-size && \ flashrom -p realtek_mst_i2c_spi:bus=8 --flash-name Change-Id: I892e0be776fe605e69fb39c77abf3016591d7123 Signed-off-by: Edward O'Callaghan <quasisec@google.com> Reviewed-on: https://review.coreboot.org/c/flashrom/+/40667 Reviewed-by: Edward Hill <ecgh@chromium.org> Reviewed-by: Shiyu Sun <sshiyu@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>	2020-05-04 00:52:42 +00:00