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Change in flashrom[master]: programmer: Add Developerbox/CP2104 bit bang driver
by build bot (Jenkins) (Code Review) 07 Jun '18

07 Jun '18

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/26948 ) Change subject: programmer: Add Developerbox/CP2104 bit bang driver ...................................................................... Patch Set 2: Verified+1 Build Successful https://qa.coreboot.org/job/flashrom-customrules/1326/ : SUCCESS https://qa.coreboot.org/job/flashrom_gerrit/1097/ : SUCCESS -- To view, visit https://review.coreboot.org/26948 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I2547a96c1a2259ad0d52cd4b6ef42261b37cccf3 Gerrit-Change-Number: 26948 Gerrit-PatchSet: 2 Gerrit-Owner: Daniel Thompson <daniel.thompson(a)linaro.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Comment-Date: Thu, 07 Jun 2018 15:09:04 +0000 Gerrit-HasComments: No Gerrit-HasLabels: Yes

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Change in flashrom[master]: flashchips: Add Macronix MX25U51245G
by build bot (Jenkins) (Code Review) 07 Jun '18

07 Jun '18

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/26949 ) Change subject: flashchips: Add Macronix MX25U51245G ...................................................................... Patch Set 2: Verified+1 Build Successful https://qa.coreboot.org/job/flashrom-customrules/1329/ : SUCCESS https://qa.coreboot.org/job/flashrom_gerrit/1098/ : SUCCESS -- To view, visit https://review.coreboot.org/26949 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I2117fc205006088967f3d97644375d10db1791f1 Gerrit-Change-Number: 26949 Gerrit-PatchSet: 2 Gerrit-Owner: Daniel Thompson <daniel.thompson(a)linaro.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Comment-Date: Thu, 07 Jun 2018 15:09:04 +0000 Gerrit-HasComments: No Gerrit-HasLabels: Yes

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Change in flashrom[master]: bitbang_spi: Add functions to optimize xfers
by build bot (Jenkins) (Code Review) 07 Jun '18

07 Jun '18

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/26946 ) Change subject: bitbang_spi: Add functions to optimize xfers ...................................................................... Patch Set 2: Verified+1 Build Successful https://qa.coreboot.org/job/flashrom-customrules/1328/ : SUCCESS -- To view, visit https://review.coreboot.org/26946 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: Ic3430a9df34844cdfa82e109456be788eaa1789a Gerrit-Change-Number: 26946 Gerrit-PatchSet: 2 Gerrit-Owner: Daniel Thompson <daniel.thompson(a)linaro.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Comment-Date: Thu, 07 Jun 2018 15:09:04 +0000 Gerrit-HasComments: No Gerrit-HasLabels: Yes

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Change in flashrom[master]: bitbang_spi: Add half-duplex optimizations
by build bot (Jenkins) (Code Review) 07 Jun '18

07 Jun '18

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/26947 ) Change subject: bitbang_spi: Add half-duplex optimizations ...................................................................... Patch Set 2: Verified+1 Build Successful https://qa.coreboot.org/job/flashrom-customrules/1327/ : SUCCESS -- To view, visit https://review.coreboot.org/26947 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I33b9f363716f651146c09113bda5fffe53b16738 Gerrit-Change-Number: 26947 Gerrit-PatchSet: 2 Gerrit-Owner: Daniel Thompson <daniel.thompson(a)linaro.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Comment-Date: Thu, 07 Jun 2018 15:09:03 +0000 Gerrit-HasComments: No Gerrit-HasLabels: Yes

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Change in flashrom[master]: bitbang_spi: Add functions to optimize xfers
by Daniel Thompson (Code Review) 07 Jun '18

07 Jun '18

Hello Paul Menzel, build bot (Jenkins), I'd like you to reexamine a change. Please visit https://review.coreboot.org/26946 to look at the new patch set (#2). Change subject: bitbang_spi: Add functions to optimize xfers ...................................................................... bitbang_spi: Add functions to optimize xfers On systems where the overhead of getting/setting pins is much greater than the half period (for example, USB bit banging) it significantly boosts performance if we can bang more than one bit at the same time. Add support for setting sck at the same time as mosi or miso activity. The speed up varies depending on how much the overhead of getting/setting pins dominates execution time. For a USB bit bang driver running on a 7th generation Core i5, the time to probe drops from ~9.2 seconds to ~7.7 seconds when set_clk_set_mosi() is implemented. Change-Id: Ic3430a9df34844cdfa82e109456be788eaa1789a Signed-off-by: Daniel Thompson <daniel.thompson(a)linaro.org> --- M bitbang_spi.c M programmer.h 2 files changed, 27 insertions(+), 16 deletions(-) git pull ssh://review.coreboot.org:29418/flashrom refs/changes/46/26946/2 -- To view, visit https://review.coreboot.org/26946 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: Ic3430a9df34844cdfa82e109456be788eaa1789a Gerrit-Change-Number: 26946 Gerrit-PatchSet: 2 Gerrit-Owner: Daniel Thompson <daniel.thompson(a)linaro.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org>

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Change in flashrom[master]: programmer: Add Developerbox/CP2104 bit bang driver
by Daniel Thompson (Code Review) 07 Jun '18

07 Jun '18

Hello Paul Menzel, build bot (Jenkins), I'd like you to reexamine a change. Please visit https://review.coreboot.org/26948 to look at the new patch set (#2). Change subject: programmer: Add Developerbox/CP2104 bit bang driver ...................................................................... programmer: Add Developerbox/CP2104 bit bang driver The 96Boards Developerbox (a.k.a. Synquacer E-series) provides a CP2102 debug UART with its GPIO pins hooked up to the SPI NOR FLASH. The circuit is intended to provide emergency recovery functions without requiring any additional tools (such as a JTAG or SPI programmer). This was expected to be very slow (and it is) but CP2102 is much cheaper than a full dual channel USB comms chip. Read performance is roughly on par with a 2400 baud modem (between 60 and 70 minutes per megabyte if you prefer) and write performance is 50% slower still. The full recovery process, with backup and verification of 4MB data written takes between 14 and 15 hours. Thus it is only really practical as an emergency recovery tool, firmware developers will need to use an alternative programmer. Change-Id: I2547a96c1a2259ad0d52cd4b6ef42261b37cccf3 Signed-off-by: Daniel Thompson <daniel.thompson(a)linaro.org> --- M Makefile A developerbox_spi.c M flashrom.c M programmer.h 4 files changed, 282 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/flashrom refs/changes/48/26948/2 -- To view, visit https://review.coreboot.org/26948 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: I2547a96c1a2259ad0d52cd4b6ef42261b37cccf3 Gerrit-Change-Number: 26948 Gerrit-PatchSet: 2 Gerrit-Owner: Daniel Thompson <daniel.thompson(a)linaro.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org>

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Change in flashrom[master]: bitbang_spi: Add half-duplex optimizations
by Daniel Thompson (Code Review) 07 Jun '18

07 Jun '18

Hello Paul Menzel, build bot (Jenkins), I'd like you to reexamine a change. Please visit https://review.coreboot.org/26947 to look at the new patch set (#2). Change subject: bitbang_spi: Add half-duplex optimizations ...................................................................... bitbang_spi: Add half-duplex optimizations Currently, the core of bitbang_spi is a full-duplex SPI loop but in practice this code is only ever used half-duplex. Spliting this code into two half duplex loops allows us to optimize performance by reducing communications and/or CPU pipeline stalls. The speed up varies depending on how much the overhead of getting/setting pins dominates execution time. For a USB bit bang driver running on a 7th generation Core i5, the time to probe drops from ~7.7 seconds to ~6.7 seconds when this patch is applied. Change-Id: I33b9f363716f651146c09113bda5fffe53b16738 Signed-off-by: Daniel Thompson <daniel.thompson(a)linaro.org> --- M bitbang_spi.c 1 file changed, 20 insertions(+), 5 deletions(-) git pull ssh://review.coreboot.org:29418/flashrom refs/changes/47/26947/2 -- To view, visit https://review.coreboot.org/26947 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: I33b9f363716f651146c09113bda5fffe53b16738 Gerrit-Change-Number: 26947 Gerrit-PatchSet: 2 Gerrit-Owner: Daniel Thompson <daniel.thompson(a)linaro.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org>

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Change in flashrom[master]: bitbang_spi: Add functions to optimize xfers
by Paul Menzel (Code Review) 07 Jun '18

07 Jun '18

Paul Menzel has posted comments on this change. ( https://review.coreboot.org/26946 ) Change subject: bitbang_spi: Add functions to optimize xfers ...................................................................... Patch Set 1: Code-Review+1 (1 comment) https://review.coreboot.org/#/c/26946/1//COMMIT_MSG Commit Message: https://review.coreboot.org/#/c/26946/1//COMMIT_MSG@13 PS1, Line 13: Did you do measurements? If yes, could you add them here? -- To view, visit https://review.coreboot.org/26946 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: Ic3430a9df34844cdfa82e109456be788eaa1789a Gerrit-Change-Number: 26946 Gerrit-PatchSet: 1 Gerrit-Owner: Daniel Thompson <daniel.thompson(a)linaro.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Comment-Date: Thu, 07 Jun 2018 14:29:27 +0000 Gerrit-HasComments: Yes Gerrit-HasLabels: Yes

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Change in flashrom[master]: bitbang_spi: Half-duplex optimization
by Paul Menzel (Code Review) 07 Jun '18

07 Jun '18

Paul Menzel has posted comments on this change. ( https://review.coreboot.org/26947 ) Change subject: bitbang_spi: Half-duplex optimization ...................................................................... Patch Set 1: (1 comment) https://review.coreboot.org/#/c/26947/1//COMMIT_MSG Commit Message: https://review.coreboot.org/#/c/26947/1//COMMIT_MSG@7 PS1, Line 7: bitbang_spi: Half-duplex optimization Please make it a statement by adding a verb (in imperative mood). Maybe: > Optimize half-duplex mode > Add half-duplex optimization -- To view, visit https://review.coreboot.org/26947 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I33b9f363716f651146c09113bda5fffe53b16738 Gerrit-Change-Number: 26947 Gerrit-PatchSet: 1 Gerrit-Owner: Daniel Thompson <daniel.thompson(a)linaro.org> Gerrit-Reviewer: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Comment-Date: Thu, 07 Jun 2018 14:25:45 +0000 Gerrit-HasComments: Yes Gerrit-HasLabels: No

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Change in flashrom[master]: bitbang_spi: Half-duplex optimization
by build bot (Jenkins) (Code Review) 07 Jun '18

07 Jun '18

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/26947 ) Change subject: bitbang_spi: Half-duplex optimization ...................................................................... Patch Set 1: Verified+1 Build Successful https://qa.coreboot.org/job/flashrom-customrules/1323/ : SUCCESS https://qa.coreboot.org/job/flashrom_gerrit/1094/ : SUCCESS -- To view, visit https://review.coreboot.org/26947 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I33b9f363716f651146c09113bda5fffe53b16738 Gerrit-Change-Number: 26947 Gerrit-PatchSet: 1 Gerrit-Owner: Daniel Thompson <daniel.thompson(a)linaro.org> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Comment-Date: Thu, 07 Jun 2018 13:49:37 +0000 Gerrit-HasComments: No Gerrit-HasLabels: Yes

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