Edward O'Callaghan submitted this change.
flashrom.8.tmpl: document lspcon_i2c_spi
This programmer operates much the same as realtek_mst_i2c_spi, so the
I2C options are moved to a new section describing both programmers
and a short description is added for this programmer itself.
Signed-off-by: Peter Marheine <pmarheine@chromium.org>
Change-Id: I9ccb9694fdea29e68f062cc049efc0204917a139
Reviewed-on: https://review.coreboot.org/c/flashrom/+/63104
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Nikolai Artemiev <nartemiev@google.com>
---
M flashrom.8.tmpl
1 file changed, 22 insertions(+), 11 deletions(-)
diff --git a/flashrom.8.tmpl b/flashrom.8.tmpl
index 92dff68..bf8960f 100644
--- a/flashrom.8.tmpl
+++ b/flashrom.8.tmpl
@@ -395,6 +395,8 @@
.sp
.BR "* realtek_mst_i2c_spi" " (for SPI flash ROMs attached to Realtek DisplayPort hubs accessible through I2C)"
.sp
+.BR "* lspcon_i2c_spi" " (for SPI flash ROMs attached to Parade Technologies LSPCONs)"
+.sp
Some programmers have optional or mandatory parameters which are described
in detail in the
.B PROGRAMMER-SPECIFIC INFORMATION
@@ -1417,21 +1419,25 @@
If the passed frequency is not supported by the adapter the nearest lower
supported frequency will be used.
.SS
-.BR "realtek_mst_i2c_spi " programmer
+.BR "realtek_mst_i2c_spi " and " lspcon_i2c_spi " programmers
.IP
-This programmer supports SPI flash programming for chips attached to Realtek
-DisplayPort MST hubs, themselves accessed through I2C (tunneling SPI flash
-commands through the MST hub's I2C connection with the host).
-
-The I2C bus on which the hub is reachable must be specified by either a device
-path with the \fBdevpath\fP option:
+These programmers tunnel SPI commands through I2C-connected devices. The I2C
+bus over which communication occurs must be specified either by device path
+with the \fBdevpath\fP option:
.sp
.B " flashrom \-p realtek_mst_i2c_spi:devpath=/dev/i2c-8"
.sp
or by a bus number with the \fBbus\fP option, which implies a device path like
/dev/i2c-N where N is the specified bus number:
.sp
-.B " flashrom \-p realtek_mst_i2c_spi:bus=8"
+.B " flashrom \-p lspcon_i2c_spi:bus=8"
+
+.SS
+.BR "realtek_mst_i2c_spi " programmer
+.IP
+This programmer supports SPI flash programming for chips attached to Realtek
+DisplayPort MST hubs, themselves accessed through I2C (tunneling SPI flash
+commands through the MST hub's I2C connection with the host).
.TP
.B In-system programming (ISP) mode
.sp
@@ -1456,7 +1462,12 @@
.B " flashrom -p realtek_mst_i2c_spi:bus=0,enter-isp=1,reset-mcu=0 -E"
.br
.B " flashrom -p realtek_mst_i2c_spi:bus=0,enter-isp=0,reset-mcu=1 -w new.bin"
-.sp
+.SS
+.BR "lspcon_i2c_spi " programmer
+.IP
+This programmer supports SPI flash programming for chips attached to Parade
+Technologies DisplayPort-to-HDMI level shifter/protocol converters (LSPCONs).
+Communication to the SPI flash is tunneled through the LSPCON over I2C.
.SH EXAMPLES
To back up and update your BIOS, run
@@ -1535,8 +1546,8 @@
.B ogp
needs PCI configuration space read access and raw memory access.
.sp
-.B realtek_mst_i2c_spi
-needs userspace access to the selected I2C bus.
+.BR realtek_mst_i2c_spi " and " lspcon_i2c_spi
+need userspace access to the selected I2C bus.
.sp
On OpenBSD, you can obtain raw access permission by setting
.B "securelevel=-1"
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