CROS_EC_DEV_IOCRDMEM must be used on architecture where legacy IO mapped
registers are accessed inderectly via EMI. The kernel is taking care of
the translation.
TEST=Check on reks that we need to use the IOCTL.
BUG=chrome-os-partner:52550,chromium:602832
BRANCH=none
This reverts commit de45353bbd ("ectool: Remove CROS_EC_DEV_IOCRDMEM").
Change-Id: I8efad56df90c58c25bdc9ccd70a508547e629a77
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/340348
Reviewed-by: Shawn N <shawnn@chromium.org>
On !LPC EC, we can read memory via CROS_EC_DEV_IOCXCMD ioctl,
using command EC_CMD_READ_MEMMAP.
On platform that supports direct memory access (lpc), we access
the memory directly, bypassing the ioctl.
BUG=chromium:602832
TEST=On gnawty and veyron, check 'ectool battery' works.
Verify that gnawty use io mapped registers.
BRANCH=none
Change-Id: I9bfcddcf450bf8df63ead78e1df97dd7392289e6
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/338853
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Rather than hardcode a specific mips toolchain, do a build-time test to
see if the target is x86 based.
BUG=chromium:443783
TEST=link still includes comm-lpc
TEST=arm64 omits comm-lpc
BRANCH=none
Change-Id: I0253df6cbe89bee231ec643dd6bb3498eb040708
Reviewed-on: https://chromium-review.googlesource.com/265793
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
When ec_command fails because of transport issue,
it should returns an error between -1 and -EECRESULT.
If the command fails because of the EC, the error should be less
than -EECRESULT.
Unify all transports to return the error in the same manner.
BRANCH=ToT
BUG=None
TEST=Samus: Check that unsupported command fails with the correct error
number over dev transport.
Qwarks: Check the same command with a 3.10 kernel (no dev transport,
just LPC) fails with the same error code.
Change-Id: I2e43d0cb003d75318b0edd3745e534c700d7d7d8
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/228295
Reviewed-by: Alec Berg <alecaberg@chromium.org>
This allows sending host commands to the PD chip through the EC.
The --interface option allows forcing a particular host interface.
This is necessary at present because the crosec device driver doesn't
support host protocol v3 so only has 8-bit command numbers.
BUG=chrome-os-partner:30079
BRANCH=none
TEST=from EC console,
ectool version -> prints EC version
ectool --interface=lpc --dev=0 version -> prints EC version
ectool --interface=lpc --dev=1 version -> prints PD version
ectool --interface=lpc --dev=2 version -> prints error
ectool --interface=i2c version -> can't find EC
ectool --interface=dev version -> prints EC version
Change-Id: I9dd10578dac77e3e104d19e2f37759814eec6ca2
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/207948
The EC LPC implementation guarantees that the status byte will have at
least one zero bit, so there's no need to scan the parameter space as
well. Removing this unneeded check will slightly speed up ectool.
BUG=chrome-os-partner:10963
BRANCH=none
TEST=on an x86 chromebook (e.g. link), ectool hello still works
iotools io_read8 0x200 && iotools io_read8 0x204 -> not both 0xff
Change-Id: Ic02ca0ee686ab10e50093807717ec638aaa468c6
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174059
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
These constants are scattered around the various interface
implementations and should be in one place. This will also clean up
the u-boot side when ec_commands.h is copied there.
BUG=chrome-os-partner:20257
BRANCH=none
TEST=build link, spring, pit; test 'ectool hello'
Change-Id: Ib1425db00ec8220538d8c5c65107ac9548009516
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/60810
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
The maximum packet / param size differs depending on interface and
protocol version. Commands can now ask the comm interface what the
limits are, and can use preallocated buffers to avoid needless
malloc/free.
BUG=chrome-os-partner:20571
BRANCH=none
TEST=the following all work on link
burn_my_ec
ectool version
ectool chargedump
ectool console
ectool i2cxfer 5 0x41 2
Change-Id: Ib847994da3f79721e7fb4e347231b9147a3f485f
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/60275
The maximum packet length for LPC is limited by the I/O space window
size. But that's not the case for SPI or LPC. Rename LPC constant
before adding a SPI constant.
BUG=chrome-os-partner:20257
BRANCH=none
TEST=build link
Change-Id: I088327a11eff18d401c773db953700a36f9c1bb4
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/59959
This will fix EC flash commands on pit, once the host side (u-boot and
cros_ec driver) are upgraded to match.
This change is backwards-compatible the EC still supports the existing
version 2 protocols for talking to existing AP/kernel/ectool.
Once the AP-side supports version 3 for SPI (and existing systems are
upgraded), we will remove older SPI support since we haven't shipped a
product which uses SPI.
BUG=chrome-os-partner:20257
BRANCH=none
TEST=disable cros_ec driver support in ectool; 'ectool hello' works on link
And with an old ectool which predates this CL, 'ectool hello' also works.
On pit, from u-boot prompt, 'crosec test' and 'crosec version' work, and
keyboard works.
Change-Id: I01f193e316e9aa442fe50d632dc8a4681723e282
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58908
Reviewed-by: Simon Glass <sjg@chromium.org>
Commit-Queue: Doug Anderson <dianders@chromium.org>
This is preparation for the common userspace EC interface. If/when that
appears, this will be ready.
BUG=chromium:239197
BRANCH=all
TEST=manual
Build, install, run it. Shouldn't be any change.
Change-Id: I9fa78515ec5443ba659f10a66bbaadcb7f4802b0
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56131
Nothing has used this since link EVT, so it's just dead code at this point.
BUG=chrome-os-partner:13213
BRANCH=none
TEST=manual
- Update ectool but leave old firmware
- ectool version -> works
- ectool flashread 0 0x10000 foo -> puts the first 64KB of EC flash into foo
- Update firmware
- ectool version -> works
- ectool flashread 0 0x10000 foo -> puts the first 64KB of EC flash into foo
- power+esc+refresh -> recovery mode
Change-Id: Ib25a705bcd8280d5295c8e7890969d796542b6c9
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/47866
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Assorted minor cleanup; make protocol a bit more efficient, and add a
missing line of output to flash protect status.
BUG=none
TEST=ectool flashprotect; should print valid bits = 0x3f on link
Change-Id: I9bea78506b3ed367df731d358982d3e2febb13af
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/28097
Reviewed-by: Vic Yang <victoryang@chromium.org>
Both EC and ectool are still backwards-compatible to the old interface.
BUG=chrome-os-partner:11275
TEST=manual
From U-boot prompt: mkbp hash // test old host talking to new EC
From root shell: ectool echash // test new host talking to new EC
You can also update just the OS and use an old EC, and verify that
'ectool echash' still works, which tests a new host talking to an old
EC.
Change-Id: I2afbb208cb16836f842ba119b74b1ab6a38ce5d5
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/27313
And retain compatibility for old requests.
BUG=chrome-os-partner:11275
TEST=from u-boot prompt, 'mkbp hash'
from root shell, 'ectool flashread 0 68084 /tmp/foo'
then compare to first 68084 bytes of ec.bin
Change-Id: Id82068773703543febde79fc820af7486502e01f
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/27226
And fix returning memory-mapped string length on LPC as well.
BUG=chrome-os-partner:11090
TEST=manual
from EC, 'hostevent set 0x40000'
from host, 'ectool eventget' --> should print 0x40000
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Change-Id: I9edbd0a1468b5d4160ce67c471332226e51fa868
Reviewed-on: https://gerrit.chromium.org/gerrit/26719
Reviewed-by: Simon Glass <sjg@chromium.org>
In preparation for being able to copy ec_commands.h to u-boot, which
is itself in preparation for u-boot picking it up from /usr/src/ec/
BUG=none
TEST=make link, snow, bds
Change-Id: If256434b6722ff0787ce21a8ed4c7035c28024a8
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/26451
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
This is more compatible with kernel and u-boot, and will make it
easier to share code between the ec project and those.
BUG=none
TEST=manual:
ectool version -> should work normally
on ec, do 'hostevent set 0x40000'. Then at root shell
ectool queryec
EC returned error result code 19
ectool flashread 0x100000 16 foo
Reading 16 bytes at offset 1048576...
EC returned error result code 2
Read error at offset 0
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Change-Id: I5e2a85f96c874d0730c14e1438a533649cd594f8
Reviewed-on: https://gerrit.chromium.org/gerrit/26359
Commit-Ready: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Tested-by: Randall Spangler <rspangler@chromium.org>
1) Smaller start delay for commands
2) Reads can use the entire 128 byte parameter space
This improves read speed from 350ms/64kb to 210ms/64kb.
BUG=none
TEST=ectool flashread 81920 81920 then compare with ec.A.bin
Change-Id: I53d460bace5f21db845a3f8ec681507fca0f7b0e
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/25562
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
The udelay() has big overhead so that repeating calling leads big errors
(expect 1 sec of timeout, but actually 12 secs of timeout).
So, the improvement is to double the udelay count when BUSY bit is set.
Even better, if we can check the I/O port content before really running
the EC command, it can save more time.
BUG=chrome-os-partner:10003
TEST=tested on link, alex, zgb, lumpy, stumpy and mario.
Only mario takes 1 second to timeout.
Others stop when checking ports (takes around 0.01 second).
Change-Id: I96c6d8cbe6226d05428a2ab126815e934942f5a9
Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>
Preparatory work to re-use the tools on ARM boards using I2C
communications.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BUG=None
TEST=make BOARD=link && make BOARD=bds && make BOard=DAISY
Change-Id: I31d41f30c3231a4a9349b939bf6bba871ed4c383
