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path: root/src/soc/mediatek/mt8173/flash_controller.c
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2016-12-07soc/mediatek/mt8173: Do not initialize static variables to 0Furquan Shaikh
Change-Id: Ibf0bd772bfdb3bbf6482a0ec9ff90a5c0a8945d2 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17765 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-12-06spi_flash: Make a deep copy of spi_slave structureFurquan Shaikh
Commit 36b81af (spi: Pass pointer to spi_slave structure in spi_setup_slave) changes the way spi_setup_slave handles the spi_slave structure. Instead of expecting spi controller drivers to maintain spi_slave structure in CAR_GLOBAL/data section, caller is expected to manage the spi_slave structure. This requires that spi_flash drivers maintain spi_slave structure and flash probe function needs to make a copy of the passed in spi_slave structure. This change fixes the regression on Lenovo X230 and other mainboards. Change-Id: I0ad971eecaf3bfe301e9f95badc043193cc27cab Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17728 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Iru Cai <mytbk920423@gmail.com>
2016-11-22spi: Get rid of flash_programmer_probe in spi_slave structureFurquan Shaikh
flash_programmer_probe is a property of the spi flash driver and does not belong in the spi_slave structure. Thus, make spi_flash_programmer_probe a callback from the spi_flash_probe function. Logic still remains the same as before (order matters): 1. Try spi_flash_programmer_probe without force option 2. Try generic flash probing 3. Try spi_flash_programmer_probe with force option If none of the above steps work, fail probing. Flash controller is expected to honor force option to decide whether to perform specialized probing or to defer to generic probing. BUG=None BRANCH=None TEST=Compiles successfully Change-Id: I4163593eea034fa044ec2216e56d0ea3fbc86c7d Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17465 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-11-22spi: Clean up SPI flash driver interfaceFurquan Shaikh
RW flag was added to spi_slave structure to get around a requirement on some AMD flash controllers that need to group together all spi volatile operations (write/erase). This rw flag is not a property or attribute of the SPI slave or controller. Thus, instead of saving it in spi_slave structure, clean up the SPI flash driver interface. This allows chipsets/mainboards (that require volatile operations to be grouped) to indicate beginning and end of such grouped operations. New user APIs are added to allow users to perform probe, read, write, erase, volatile group begin and end operations. Callbacks defined in spi_flash structure are expected to be used only by the SPI flash driver. Any chipset that requires grouping of volatile operations can select the newly added Kconfig option SPI_FLASH_HAS_VOLATILE_GROUP and define callbacks for chipset_volatile_group_{begin,end}. spi_claim_bus/spi_release_bus calls have been removed from the SPI flash chip drivers which end up calling do_spi_flash_cmd since it already has required calls for claiming and releasing SPI bus before performing a read/write operation. BUG=None BRANCH=None TEST=Compiles successfully. Change-Id: Idfc052e82ec15b6c9fa874cee7a61bd06e923fbf Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17462 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-03-12mediatek/mt8173: memlayout: Create DRAM DMA region for NOR flash DMA read.Yidi Lin
NOR flash has a hardware limitation that it can't access SRAM region after 4GB mode is enabled. We add a DRAM DMA region after 0x40000000 for NOR flash driver. So that the NOR flash driver can use this region after 4GB mode is enabled. BRANCH=none BUG=chormoe-os-partner:49229 TEST=Boot to kernel on rev4 w/ 2GB ram and rev3 w/ 4GB ram. And check /proc/meminfo. Change-Id: I4a86f0028b26509589ec8d09e2d077920446ece1 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: dc61ec55187959101a9e891fe5e93928e9b8176e Original-Change-Id: Ifedc9e2dfba5d294297b3a28134997ac1dd38f94 Original-Signed-off-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/327962 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/331177 Original-Commit-Ready: Patrick Georgi <pgeorgi@chromium.org> Original-Tested-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/13989 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-03-12mediatek/mt8173: add NOR DMA readBayi Cheng
BRANCH=none BUG=none TEST=boot oak to kernel on rev2 Change-Id: I368fcac1cf5e2261d00a34882a7341733ebd0732 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 6ea0407f7273bc88613bc23a6fc4c41f9cca1adb Original-Change-Id: Ic422e7265fdd35c573d8cd44280a1f7dc163a6db Original-Signed-off-by: Bayi Cheng <bayi.cheng@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/323932 Original-Commit-Ready: Yidi Lin <yidi.lin@mediatek.com> Original-Tested-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/13979 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-03-12mt8173: add SPI NOR supportmtk05962
BRANCH=none BUG=none TEST=boot oak to kernel on rev1 Change-Id: I0773c81398df445aec16bcfcd0c5a8fe5a588b5c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: ae15c42c2f7d9c2a716e5b6098d85e17279f5eae Original-Change-Id: I65abf810d35ae5e7156cf6f5730117e690183d18 Original-Signed-off-by: mtk05962 <bayi.cheng@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/292693 Original-Commit-Ready: Yidi Lin <yidi.lin@mediatek.com> Original-Tested-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/13102 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>