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2014-09-25snow: Rename snow to daisy.Gabe Black
The name snow goes by in many places in chromeos is daisy. Snow is technically a variant of daisy and should really be called daisy_snow, but for historical reasons the daisy board with no variant was used instead. To make it easier to work with within chromeos, this change renames the snow board to daisy. Change-Id: I569b31bf417db55be91832f15271bea4bc30f163 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/183553 Reviewed-by: David Hendricks <dhendrix@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 13f24d967251c18dce2a00bcea915f448c4c6aa7) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6929 Tested-by: build bot (Jenkins)
2014-09-22snow/pit: include chromeos.c in romstageIsaac Christensen
When CONFIG_CHROMEOS is enabled, both systems currently fail to build romstage due to undefined symbols. Change-Id: I0edcb141b9a79fad6b1a629bf77cae656c3d6319 Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6873 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2014-09-13arm: Move exception_init() close to console_init()Julius Werner
This patch adds stub implementations of exception_init() to all archs so that it can be called from src/lib/hardwaremain.c. It also moves/adds all other invocations of exception_init() (which needs to be rerun in every stage) close to console_init(), in the hopes that it will be less likely overlooked when creating future boards. Also added (an ineffective) one to the armv4 bootblock implementations for consistency and in case we want to implement it later. Change-Id: Iecad10172d25f6c1fc54b0fec8165d7ef60e3414 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/176764 Reviewed-by: Gabe Black <gabeblack@chromium.org> Reviewed-by: David Hendricks <dhendrix@chromium.org> (cherry picked from commit 2960623f4a59d841a13793ee906db8d1b1c16c5d) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6884 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins)
2014-08-26armv7: Move Exynos from 'cpu' to 'soc'.Hung-Te Lin
The Exynos family and most ARM products are SoC, not just CPU. We used to put ARM code in src/cpu to avoid polluting the code base for what was essentially an experiment at the time. Now that it's past the experimental phase and we're going to see more SoCs (including intel/baytrail) in coreboot. Change-Id: I5ea1f822664244edf5f77087bc8018d7c535f81c Reviewed-on: https://chromium-review.googlesource.com/170891 Tested-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Ronald Minnich <rminnich@chromium.org> Commit-Queue: Hung-Te Lin <hungte@chromium.org> (cherry picked from commit c8bb8fe0b20be37465f93c738d80e7e43033670a) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6739 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2014-08-25intel/gma: Clarify code and use dedicated init for Google PeppyRonald G. Minnich
Peppy had some issues with FUI. We decided it was time to create peppy-specific gma.c and i915io.c files. Using yabel and the i915tool, we generated a replay attack, then interpolated against the slippy i915io.c to get something working. Also, in preparation for moving code out of the mainboard gma.c to generic driver code, we got rid of some hardcodes in the mainboard gma.c that have no business being there. The worst were the computation of gmch_[m,n] and it turns out that we had some long-standing bugs related to confusion about 'bpp'. I've killed the word bpp everywhere I could because there are at least 3 things that correspond to bpp. We now have framebuffer, pipe, and panel bpp. The names are long because I want to avoid all the mistakes we've all been making in the last year :-) Sadly, that means a lot of changes not just peppy-related, but they are simple and in a good cause. The test pattern generation is driven by a global variable in mainboard/peppy/gma.c. I've found in the past that it's very useful to have a function like this available, as one can activate it while using a jtag debugger: halt at the right place in ramstage, set the variable to 1, continue. It's not enough code to worry about always including. The last hard-codes for M and N registers are gone, and the function to set from generic intel_dp.c code works. To avoid screen trash on a dev mode boot, which we liked but nobody else did :-), we now take the time to put a pleasing background color that sort of doubles as a power LED. Rough timing is ramstage start is at 2.2, and dev setup is done at 3.3. These new platforms are depressingly slow to boot. Rom init alone is taking 1.9 seconds. 13 years ago it was 3 seconds from power on to bash prompt. These CPUs are at least 10x faster and take much longer to get going. Future work, once we get this through, is to move more functions to the intel driver, and combine the mainboard i915io.c into the mainboard gma.c. That separation only existed because i915io.c was generated by a tool, and it had lots of ugliness. Most ugliness is gone. Old-Change-Id: I6a6295b423a41e263f82cef33eacb92a14163321 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: https://chromium-review.googlesource.com/170013 Reviewed-by: Stefan Reinauer <reinauer@google.com> Commit-Queue: Ronald Minnich <rminnich@chromium.org> Tested-by: Ronald Minnich <rminnich@chromium.org> Reviewed-by: Furquan Shaikh <furquan.m.shaikh@gmail.com> (cherry picked from commit 8cdaf73e3602e15925859866714db4d5ec6c947d) snow: Fix a typo in devicetree.cb that was breaking the snow build. A typo in a recent change broke the snow build. Old-Change-Id: I93074e68eb3d21510d974fd8e9c63b3947285afd Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/171014 Reviewed-by: Ronald Minnich <rminnich@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 154876c126a6690930141df178485658533096d2) Squashed a fix into the initial patch and updated nehalem/gma.c to have a non-static gtt_poll. Change-Id: I2f4342c610d87335411da1d6d405171dc80c1f14 Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6657 Tested-by: build bot (Jenkins)
2014-08-18trustzone: Pull trustzone init out of cpu.c and do it in romstage.Gabe Black
Trustzone needs to be initialized/disabled both on boot and on wake, so it needs to be done before ramstage which doesn't run on wake. cpu.c isn't compiled into romstage and fixing that causes other problems, so the trustzone functions were split out. Change-Id: I8fc630237ebec1f02a91600f8baf3d4e9ea66d0e Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/169817 Reviewed-by: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 055ed0e28476123b0bd666109af90baf40aadcee) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6666 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2014-08-18exynos5: Implement support for USB 3.0 DRD PHYs/controllersJulius Werner
This patch adds support for the DesignWare3 USB 3.0 DRD controller and PHY to the Exynos5250 and Exynos5420 CPUs. It also adds code to the Google Snow and Pit boards to turn these controllers on where applicable. Change-Id: Idcca627363a69f1d65402e1acb9a62b439f077ff Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/169452 Reviewed-by: Stefan Reinauer <reinauer@google.com> (cherry picked from commit e9809ae12ef8b8bd6cd61d3f604cb9e4718cf7eb) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6642 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2014-08-14pit: snow: Fix snow, fix up pit write protect.Gabe Black
A recent change to support early firmware selection on ARM broke snow and was incompletely implemented on pit. This change fixes snow by applying the remaining part of the change that had been applied to pit, and also hooks up real values in the get_write_protect_state function. Change-Id: Ifef7ad1bf399f79353daec3dd46973f2b2022e37 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/169120 Reviewed-by: David Hendrix <dhendrix@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 841773e048cd9cfbb64782059c24e29c467f17c8) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6635 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2014-08-14exynos5: Refactor crazy old U-Boot base address macros awayJulius Werner
All this samsung_get_base_address_of_device_with_a_really_long_name() boilerplate makes my eyes bleed... I think there are so much cleaner ways to do this. Unfortunately changing this ends up touching nearly every Exynos5 file, but I hope you agree that it's worth it (and the sooner we get it over with, the better... I can't bring myself to make another device fit into that ugly scheme). This also removes the redundant EXYNOS5 base address definitions from the 5420 directory when there are EXYNOS5420 ones, to avoid complete confusion. The new scheme tries to use EXYNOS5 for base addresses and exynos5 for types that are common between the two processors, and EXYNOS5420/exynos5420 for things that have changes (although I probably didn't catch all differences). Change-Id: I87e58434490ed55a9bbe743af1f9bf2520dec13f Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/167579 Reviewed-by: Stefan Reinauer <reinauer@google.com> Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: ron minnich <rminnich@chromium.org> (cherry picked from commit 66c87693352c248eec029c1ce83fb295059e6b5b) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6632 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2014-08-13arm: libpayload: Add cache coherent DMA memory definition and managementJulius Werner
This patch adds a mechanism to set aside a region of cache-coherent (i.e. usually uncached) virtual memory, which can be used to communicate with DMA devices without automatic cache snooping (common on ARM) without the need of explicit flush/invalidation instructions in the driver code. This works by setting aside said region in the (board-specific) page table setup, as exemplary done in this patch for the Snow and Pit boards. It uses a new mechanism for adding board-specific Coreboot table entries to describe this region in an entry with the LB_DMA tag. Libpayload's memory allocator is enhanced to be able to operate on distinct types/regions of memory. It provides dma_malloc() and dma_memalign() functions for use in drivers, which by default just operate on the same heap as their traditional counterparts. However, if the Coreboot table parsing code finds a CB_DMA section, further requests through the dma_xxx() functions will return memory from the region described therein instead. Change-Id: Ia9c249249e936bbc3eb76e7b4822af2230ffb186 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/167155 (cherry picked from commit d142ccdcd902a9d6ab4d495fbe6cbe85c61a5f01) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6622 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-08-12exynos5: Refactor board-specific parts out of USB PHY codeJulius Werner
This patch moves around some of the existing Exynos5 USB 2.0 PHY code to make it cleaner in preparation of the 3.0 PHYs. It moves the VBUS GPIOs (which are completely board-specific) into the mainboard code and makes sure to only initialize PHYs on the boards that actually need them. It also removes the USB 3.0 PLL hack that was needed on Snow from the Pit and Kirby boards (which do not have that PLL anymore). Change-Id: Ia35f47a765acff60481f0907f7448ec4f78e0937 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/66887 Reviewed-by: Stefan Reinauer <reinauer@google.com> (cherry picked from commit c3b1a8b687b535f4d5ac1b3bd2a4760151698fdb) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6609 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-08-12exynos5420: Make USB A-A booting work with early data cacheJulius Werner
Apparently the IROM doesn't like data caches... the recently added dcache-in-bootblock makes A-A booting fail, and flushes/invalidations alone don't seem to fix it. It's pretty fast anyway, so we just disable the cache again for the duration of the IROM call. Also removes a superfluous invalidation line from the bootblock code... dcache_mmu_enable/disable already take care of that. Old-Change-Id: I35580d15664c7b4197d4ed14028720147adbf918 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/66602 Reviewed-by: Gabe Black <gabeblack@chromium.org> Reviewed-by: David Hendricks <dhendrix@chromium.org> (cherry picked from commit e9c28a6a7a88c8286e62764ee5ad2694da2e822f) exynos5: Implement booting from SDMMC media This patch augments the alternative CBFS media source implementation for Exynos5250 and Exynos5420 to allow booting from SDMMC devices (such as an SD or uSD card reader, if available). It also moves MMC initialization for the Snow, Pit and Kirby boards from romstage to ramstage (mainboard_init) to prevent it from interfering with the IROM during SDMMC boot. Old-Change-Id: Ic4adef80c28262d084a53c28ec59aa7ac3af50c8 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/66154 (cherry picked from commit 08de13b72432c076e3327c048df93d89d52b0ecc) snow and pit: turn on FET4 (for SD card) at bootup Explictly enable FET4 on Snow and Pit. Historically we haven't needed to do this because: * On snow there's a bypass around FET4 which effectively eliminates it. Even if we don't turn on FET4 the SD card is still powered. Turning on FET4 doesn't hurt though and is technically correct. * On pit the EC turns on FET4 on cold bootup. On pit we run into a problem if the kernel turns off FET4 like in <https://gerrit.chromium.org/gerrit/#/c/65332/> and then we get a software reset or warm reset. In this case the EC won't know to turn it back on. This was ported from: https://gerrit.chromium.org/gerrit/#/c/65673 Signed-off-by: David Hendricks <dhendrix@chromium.org> Old-Change-Id: I57337f12b38889e6afee8577cf8807ec4c41e91c Reviewed-on: https://gerrit.chromium.org/gerrit/66786 Commit-Queue: David Hendricks <dhendrix@chromium.org> Tested-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Ronald G. Minnich <rminnich@chromium.org> (cherry picked from commit e910117047d898b6b1d0dc965ef2ec0237d17646) Squashed three commits for alternate cbfs SD support. Change-Id: Idbd1fd4776cbf8cb20d03e6b691104cd8540a1ec Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6530 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-07-08mainboard: Trivial - drop trailing blank lines at EOF in .hEdward O'Callaghan
Change-Id: I4a4ee99468e5f1dae8412ae565a34290493db726 Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-on: http://review.coreboot.org/6201 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins)
2014-07-08mainboard: Trivial - drop trailing blank lines at EOFEdward O'Callaghan
Change-Id: I05d6d22664155ac8478e665733f816776e277c22 Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-on: http://review.coreboot.org/6200 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2014-05-19Add aliases for Chromebooks in board_infoKyösti Mälkki
This defines new board_info entry 'Vendor name' to be displayed in place of, or in addition to, the CONFIG_VENDOR string 'Google'. Also flag these as flashrom accessible SPI without socket. Instructions to disable flash write-protection can be found at Chromium developer documentation. Change-Id: I69791a091417a80d01e0ba2c6462417730a07be0 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5750 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2014-05-08ChromeOS boards: Fix includesKyösti Mälkki
Change-Id: Ib8448f3d36a23538cd9fea897f09da3ec4ad007a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5647 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2014-05-03Move ARCH_* from board/Kconfig to cpu or soc Kconfig.Furquan Shaikh
CONFIG_ARCH is a property of the cpu or soc rather than a property of the board. Hence, move ARCH_* from every single board to respective cpu or soc Kconfigs. Also update abuild to ignore ARCH_ from mainboards. Change-Id: I6ec1206de5a20601c32d001a384a47f46e6ce479 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: http://review.coreboot.org/5570 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2014-05-01ChromeOS: Use common fill_lb_gpio()Kyösti Mälkki
Change-Id: I2ba7a1c2b2e6ce2c00c9a2916141bed67930ba2d Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5586 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2014-04-30console: Move UART port defaults to mainboardKyösti Mälkki
Correct selection of UART depends of board layout, not the CPU internals, so default setting should originate from mainboard. Change-Id: Ibf0ab0847ccce73c22704e86983dbe3d24ebc8a0 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5618 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2014-04-26Rename coreboot_ram stage to ramstageFurquan Shaikh
Rename coreboot_ram stage to ramstage. This is done in order to provide consistency with other stage names (bootblock, romstage) and to allow any Makefile rule generalization, required for patches to be submitted later. Change-Id: Ib66e43b7e17b9c48b2d099670ba7e7d857673386 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: http://review.coreboot.org/5567 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2014-03-04uart: Drop HAVE_UART_MEMORY_MAPPEDKyösti Mälkki
This option is used to make uart8250mem option visible in menuconfig. Showing it for these ARMs is incorrect. Change-Id: I2c28e1c3781df41c09c365355a5105c9fe4945ed Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5259 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2014-02-06ARMv7: Remove static CBMEM allocationKyösti Mälkki
The calculations for static allocation are no longer valid. Change-Id: I6740cdcec789abddf78485a0edaf24882ef8c2a5 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/4569 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: David Hendricks <dhendrix@chromium.org>
2014-01-19board_info.txt: declare chromebooks as laptops.Vladimir Serbinenko
Change-Id: I4a3ed7e9b6aaec8aba8ffc47eafdbcca31e4c700 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4734 Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Tested-by: build bot (Jenkins)
2013-12-21exynos5250: Implement support to boot with USB A-A firmware uploadJulius Werner
This patch implements the basic infrastructure required to use the USB A-A firmware upload feature on Exynos5 processors with Coreboot. It will require a corresponding host-side script that activates the feature and uploads the correct image parts in the correct order to harcoded target addresses, as described in the comments of alternate_cbfs.c. Also fixes a bug in the Google Snow mainboard where it would not correctly initialize the pinmux configuration for the SPI flash bus. During a normal SPI boot the IROM would already do that for you, but when booting from USB you have to do it yourself. Change-Id: I40a39f8f5d1d70b58dbf258015c1653a27097d67 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/64875 Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/4456 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-12-21snow: Set up the i2s0 pins during bootGabe Black
Change-Id: I6729a139091b40d8fd9ba2aa7a8c4e14216d95c5 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://gerrit.chromium.org/gerrit/64879 Reviewed-by: Stefan Reinauer <reinauer@google.com> Commit-Queue: Stefan Reinauer <reinauer@google.com> Tested-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/4440 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-12-21armv7/exynos: Fix and remove memory reset workaroundsHung-Te Lin
The memory corruption problem in Exynos suspend/resume process is caused by two things together: PHY_RESET and MRS command. After stop sending MRS on resume, we can now remove the workaround of skipping PHY_RESET. Change-Id: I64acc27c1d2bb549ae6ad7d32ecda94b0355972c Reviewed-on: https://gerrit.chromium.org/gerrit/64736 Tested-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: David Hendricks <dhendrix@chromium.org> Commit-Queue: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/4433 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-12-21snow: TPS69050 -> TPS65090David Hendricks
This corrects a minor typo used for a part number. Signed-off-by: David Hendricks <dhendrix@chromium.org> Change-Id: I8583cbfc3b4a6c3ad06419f5aab3ba7a8f685575 Reviewed-on: https://gerrit.chromium.org/gerrit/64301 Reviewed-by: Ronald G. Minnich <rminnich@chromium.org> Commit-Queue: David Hendricks <dhendrix@chromium.org> Tested-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/4424 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-12-21Exynos 5250: Enable dynamic CBMEMStefan Reinauer
... In order to do this, the graphics memory has to move into the resource allocator and out of CBMEM. Change-Id: I7396da4a7068404b0d2e4d308becab4dd6ea59bb Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: https://gerrit.chromium.org/gerrit/59326 Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/4390 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-12-12snow: Fix the edid data structure definition so depthcharge works again.Gabe Black
Some new fields were added to the edid data structure, and the edid code was changed to put estimated values into those fields which were ultimately passed into depthcharge or other payloads. On snow we do things different and just declare an edid structure statically which didn't have those members. The rows and columns of the graphics console were 0, and that confused the framebuffer driver and made it loop forever. Change-Id: I6ca3bd948482b347a6a981e83b82b10dca995e5e Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://gerrit.chromium.org/gerrit/61057 Reviewed-by: Ronald G. Minnich <rminnich@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/4341 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-12-02Add option to disable ChromeOSKyösti Mälkki
Those building Chromebook firmware from coreboot git might be more interested in building without ChromeOS extras. Change-Id: I2f176d059fd45bf4eb02cc0f3f1dcc353095d0ce Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3977 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2013-09-17Fix whitespace leaked into treeKyösti Mälkki
Clean whitespace errors that have gotten past lint-stable-003-whitespace and gerrit review. Change-Id: Id76fc68e9d32d1b2b672d519b75cdc80cc4f1ad9 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3920 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Bruce Griffith <Bruce.Griffith@se-eng.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-09-11CBMEM ARM: Prefer get_cbmem_table() over cbmem_late_set_table()Kyösti Mälkki
Implementing get_cbmem_table() allows initializing CBMEM earlier. Change-Id: I973f3a84dd9aaa2839959df5dda22909fdb9edeb Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3560 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-09-11CBMEM: Add cbmem_late_set_table() and drop references to high_tables_baseKyösti Mälkki
This helper function is for compatibility only for chipsets that do not implement get_top_of_ram() to support early CBMEM. Also remove references to globals high_tables_base and _size under arch/ and from two ARMv7 boards. Change-Id: I17eee30635a0368b2ada06e0698425c5ef0ecc53 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3902 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-07-10armv7/exynos: Prevent unexpected reboots in resume.Hung-Te Lin
In resume path, if memory setup takes too long without setting PS_HOLD, EC watch dog may power off or reboot the system. To prevent that, we should enable PS_HOLD in same timing as cold boot - right before starting memory setup. Change-Id: I5c294fa7ae015f8cff57b1fd81e5b80902647b15 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3718 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10Exynos5250: Initialize USB PHYStefan Reinauer
... this is needed for libpayload to talk to USB devices. Change-Id: I7eb19003c9e96efb5fa7a3f97c7b15f3ef332687 Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3696 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10exynos5250: De-switch-ify the pinmux configuration code.Gabe Black
The pinmux code for the exynos5250 was all bundled into a single, large function which contained a switch statement that would set up the pins for different peripherals within the SOC. There was also a "flags" parameter, the meaning of which, if any, depended on which peripheral was being set up. There are several problems with that approach. First, the code is inefficient in both time and space. The caller knows which peripheral it wants to set up, but that information is encoded in a constant which has to be unpacked within the function before any action can be taken. If there were a function per peripheral, that information would be implicit. Also, the compiler and linker are forced to include the entire function with all its cases even if most of them are never called. If each peripheral was a function, the unused ones could be garbage collected. Second, it would be possible to try to set up a peripheral which that function doesn't know about, so there has to be additional error checking/handling. If each peripheral had a function, the fact that there was a function to call at all would imply that the call would be understood. Third, the flags parameter is fairly opaque, usually doesn't do anything, and sometimes has to have multiple values embedded in it. By having separate functions, you can have only the parameters you actually want, give them names that make sense, and pass in values directly. Fourth, having one giant function pretends to be a generic, portable API, but in reality, the only way it's useful is to call it with constants which are specific to a particular implementation of that API. It's highly unlikely that a bit of code will need to set up a peripheral but have no idea what that peripheral actually is. Call sights for the prior pinmux API have been updated. Also, pinmux initialization within the i2c driver was moved to be in the board setup code where it really probably belongs. The function block that implements the I2C controller may be shared between multiple SOCs (and in fact is), and those SOCs may have different pinmuxes (which they do). Other places this same sort of change can be made are the pinmux code for the 5420, and the clock configuration code for both the 5250 and the 5420. Change-Id: Ie9133a895e0dd861cb06a6d5f995b8770b6dc8cf Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3673 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10google/snow: Don't spew output with GPIO configStefan Reinauer
There are hundreds of GPIOs on the Exynos5250. Don't always print all of them per default. Change-Id: Ie349f2a4117883302b743027ed13cc9705b804f8 Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3661 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10exynos5250: Simplify the graphics code by eliminating the unused color map.Gabe Black
The code that allocated space for the framebuffer was adding space for a vestigial color map which was never used. It was also passing around a structure which was used to calculate a single value which was already known when that structure was put together. Eliminate the extra space, and pass the single value instead of the structure. Change-Id: Ia6a41cefdf8b29fe7d68f9596a156eced6eb5df8 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3652 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10snow: Make coreboot set up pins for busses it knows are hooked up as suchGabe Black
Coreboot knows that, for the snow board, certain pins are to be connected to bus controllers in the SOC and to the wires of a bus external to the SOC. It can configure them as such and free its payload from having to know how to set everything up. Change-Id: I1bb127c810e9ee077afc4227a6f316eaa53d6498 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3650 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
2013-07-10ARMv7: Clean up console codeStefan Reinauer
- Guard console_init() with CONFIG_EARLY_CONSOLE in bootblock - Don't initialize console twice in the bootblock - remove printk in memory init that would mess up the UART - unconditionally run console_init() in romstage, as it is also unconditionally run in the bootblock. Change-Id: I8f0d60877433162367074d0e55e01f935fd81f8e Signed-off-by: Stefan Reinauer <reinauer@google.com> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3647 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10pit: Create an exynos5420 directory which is nearly a copy of exynos5250.Gabe Black
This change creates an exynos5420 directory with code that will eventually implement support for the exynos5420 cpu from Samsung. Currently it's a copy of the exynos5250 directory with the name changed. There are going to be some problems where headers in src/cpu/samsung/exynos-common include headers in the exynos5250 directory directly. Change-Id: Ia8d7244310d32499238bbc171c0c668ec48178e1 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3644 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10ARMv7: De-uboot-ify Exynos5250 GPIO codeStefan Reinauer
The Exynos GPIO code has three different APIs that, unfortunately, were widely used throughout the code base. This patch is cleaning up the mess. Change-Id: I09ccc7819fb892dbace9693c786dacc62f3f8eac Signed-off-by: Stefan Reinauer <reinauer@google.com> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3643 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10ARMv7: De-uboot-ify Exynos5250 codeStefan Reinauer
When starting the Exynos5250 port, a lot of unneeded u-boot code was imported. This is an attempt to get rid of a lot of unneeded code before the port is used as a basis for further ARM ports. There is a lot more that can be done, including cleaning up the 5250's Kconfig file. Change-Id: I2d88676c436eea4b21bcb62f40018af9fabb3016 Signed-off-by: Stefan Reinauer <reinauer@google.com> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3642 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10samsung/exynos5250: unify codeStefan Reinauer
It turns out that the exynos5-common code previously imported from u-boot is not common code at all but very specific to the 5250 and not compatible with the 5450. Hence, unify the directories exynos5250 and exynos5-common. We will try to factor out common code while progressing with the 5450 port. Change-Id: Iab595e66fcd01eda8365c96fb8bef896f7602f03 Signed-off-by: Stefan Reinauer <reinauer@google.com> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3641 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10Wield battle axe at ARM portStefan Reinauer
This patch unfortunately incorporates a number of changes, all of which are making future ARM ports easier. - drop cruft that came in with u-boot - move serial console from mainboard Kconfig to Exynos Kconfig - factor out non-board specific wakeup code - move generic bootblock code from mainboard to Exynos - actually call arch_cpu_init() - remove dead code - fix up copyright messages - remove snow_ prefix from a lot of code to reduce the noise when creating a new mainboard based on that code. Change-Id: Ic05326edf5a7e1a691c5ff841a604cb9e351b562 Signed-off-by: Stefan Reinauer <reinauer@google.com> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3640 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10Rename hardwaremain() to main()Stefan Reinauer
... and drop the wrapper on ARMv7 Change-Id: If3ffe953cee9e61d4dcbb38f4e5e2ca74b628ccc Signed-off-by: Stefan Reinauer <reinauer@google.com> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3639 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10ARMv7: normalize ramstage code flowStefan Reinauer
In ram stage, all code flow should be tied to the resource allocator. Stuff that has to happen before everything else goes into the mainboard enable function in mainboard.c. This patch empties the main() wrapper around hardwaremain.c, allowing to get rid of this special case in the ARM port. Change-Id: Ide91a23f1043b64acf64471f180a2297f0f40d97 Signed-off-by: Stefan Reinauer <reinauer@google.com> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3638 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10Provide support for setting up the framebuffer from EDIDRonald G. Minnich
Add three functions to edid.c: void set_vbe_mode_info_valid(struct edid *edid, uintptr_t fb_addr) takes an edid and uintptr_t, and fills in a static lb_framebuffer struct as well as setting the static vbe_valid to 1 unless some problem is found in the edid. The intent here is that this could be called from the native graphics setup code on both ARM and x86. int vbe_mode_info_valid(void) returns value of the static vbe_valid. void fill_lb_framebuffer(struct lb_framebuffer *framebuffer) copies the static edid_fb to lb_framebuffer. There is now a common vbe.h in src/include, removed the two special ones. In general, graphics in coreboot is a mess, but graphics is always a mess. We don't have a clean way to try two different ways to turn on a device and use the one that works. One battle at a time. Overall, things are much better. The best part: this code would also work for ARM, which also uses EDID. Change-Id: Id23eb61498b331d44ab064b8fb4cb10f07cff7f3 Signed-off-by: Ronald G. Minnich <rminnich@google.com> Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3636 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-03Move select MMCONF_SUPPORT under northbridgeKyösti Mälkki
Move/remove MMCONF_SUPPORT reference under mainboard Kconfig, as that feature originates from northbridge and cannot be disabled for a single mainboard. Change-Id: I6d6861079876ddddaff90b10f18edb6936e93bd0 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3589 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-05-26snow: Add a name to the serial console UART choice block.Gabe Black
This allows other boards to have the same choice block without confusing kconfig. Change-Id: Iea5a7f2d1c263aa7992f504b832ca9c862833c3f Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3293 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-05-08hardwaremain: drop boot_complete parameterStefan Reinauer
it has been unused since 9 years or so, hence drop it. Change-Id: I0706feb7b3f2ada8ecb92176a94f6a8df53eaaa1 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/3212 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-05-06exynos5250/snow: deprecate time.hDavid Hendricks
This re-introduces 2fde966 (http://review.coreboot.org/#/c/3177/) which was reverted due to unsatisfied dependencies. time.h We Hardly Knew Ye. This deprecates time.h which is currently only used by Exynos5250 and Snow. The original idea was to try and unify some of the various timer interfaces and has been supplanted by the monotonic timer API. timer_us() is now obsolete. timer_start() is now mct_start() and is exposed in exynos5250/clk.h. Change-Id: I8e60105629d9da68ed622e89209b3ef6c8e2445b Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3201 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-05-04Revert "exynos5250/snow: deprecate time.h"David Hendricks
This reverts commit 2fde9668b47e74d1bfad2f1688a4481e6b966d04 Somehow this got merged before its dependencies. 3190 must be merged first, followed by 3176. However 3190 will fail while this patch is in. So the situation can't correct itself. Reverting this until the other two go in. Change-Id: I176f37c12711849c96f1889eacad38c00a8142c4 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3195 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-05-03exynos5250/snow: deprecate time.hDavid Hendricks
time.h We Hardly Knew Ye. This deprecates time.h which is currently only used by Exynos5250 and Snow. The original idea was to try and unify some of the various timer interfaces and has been supplanted by the monotonic timer API. timer_us() is now obsolete. timer_start() is now mct_start() and is exposed in exynos5250/clk.h. Signed-off-by: David Hendricks <dhendrix@chromium.org> Change-Id: I14ebf75649d101491252c9aafea12f73ccf446b5 Reviewed-on: http://review.coreboot.org/3177 Reviewed-by: Aaron Durbin <adurbin@google.com> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-05-01Google/Snow: Revise bootblock initialization.Hung-Te Lin
It's fine to always start timer even in suspend/resume mode, so we can move the timer_start() back to the very beginning of boot procedure. That provides more precise boot time information. With that timer change, the wake up state test procedure can be simplified. Verified by building and booting firmware image on Google/Snow successfully, and then suspend-resume without problem (suspend_stress_test). Change-Id: I0d739650dbff4eb3a75acbbf1e4356f2569b487d Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3151 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-05-01Google/Snow: Remove duplicated SPI1 initialization in bootblock.Hung-Te Lin
The firmware media source (SPI1) is already initialized by Exynos iROM. There is no need to do it again. Verified by building and booting Google/Snow successfully. Change-Id: I89390506aa825397c0d7e52ad7503f1cb808f7db Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3147 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-30Google/Snow: Remove unnecessary serial console init code.Hung-Te Lin
The "console_init" does initialize UART driver (which will setup peripheral and pinmux) and print starting message. Duplicated initialization can be removed. Also, console_init (from console.c) is always linked to bootblock (and will do nothing if CONFIG_EARLY_CONSOLE is not defined) so it's safe to remove #ifdef. Verified by building and booting on Google/Snow, with and without CONFIG_EARLY_CONSOLE. Change-Id: I0c6b4d4eb1a4e81af0f65bcb032978dfb945c63d Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3150 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-30Google/Snow: Temporary fix for resume failure.Hung-Te Lin
The DDR3 memory initialization (with "mem_reset" set on normal boot) will cause resume to be unstable, especially when X is running. System may show X screen for few seconds, then crash randomly and unable to recover - although text console may still work for a while. Probably caused by corrupted memory pages. 'mem_reset' (which refers to RESET# in DDR3 spec) should be enabled according to DDR3 spec. But it seems that on Exynos 5, memory can be initialized without setting mem_reset for both normal boot and resume - at least no known failure cases are found yet. So this can be a temporary workaround. Verified by booting a Google/Snow device with X Window and ChromeOS, entering browser session with fancy web pages, closing LID to suspend for 5 seconds, then re-opening to resume. Suspend/resume worked as expected. Also tried the "suspend_stress_test" with X running and finished 100 iterations of suspend/resume test without failure. Change-Id: I7185b362ce8b545fe77b35a552245736c89d465e Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3148 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-29Google/Snow: Enable suspend/resume.Hung-Te Lin
Add the suspend/resume feature into bootblock and romstage. Note, resuming with X and touchpad driver may be still unstable. Verified by building and booting successfully on Google/Snow, and then executing the "suspend_stress_test" in text mode ("stop ui; suspend_stress_test") in Chromium OS, passed at least 20 iterations. Change-Id: I65681c42eeef2736e55bb906595f42a5b1dfdf11 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3102 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-04-26google/snow: Revise romstage initialization code.Hung-Te Lin
Move board setup procedure to snow_setup_* functions, and Snow board-specific (wakeup) code to snow_* for better function names and comments. Verified by successfully building and booting on Google/Snow. Change-Id: I2942d75064135093eeb1c1da188a005fd255111d Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3130 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-04-25google/snow: Add "wakeup" module for suspend/resume.Hung-Te Lin
The "wakeup" procedure will be shared by bootblock and romstage for different types of resume processes. Note, this commit does not include changes in romstage/bootblock to enable suspend/resume feature. Simply adding functions to handle suspend/resume. Verified by successfully building and booting Google/Snow firmware image. Change-Id: I17a256afb99f2f8b5e0eac3393cdf6959b239341 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3129 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-25arm/exynos: Allow DRAM controller to be initialized without clearing RAM ↵Hung-Te Lin
content. To support suspend/resume, PHY control must be reset only on normal boot path. So add a new param "mem_reset" to specify that. Verified to boot successfully on Google/Snow. Change-Id: Id49bc6c6239cf71a67ba091092dd3ebf18e83e33 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3128 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-23GOOGLE/SNOW: get graphics workingRonald G. Minnich
This adds support for display bring-up on Snow. It includes framebuffer initialization and LCD enable functions. Change-Id: I16e711c97e9d02c916824f621e2313297448732b Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3116 Tested-by: build bot (Jenkins)
2013-04-19google/snow: disable unused USB3.0 PLL to save powerDavid Hendricks
This PLL is unused and can be disabled to save about 250mW. Change-Id: I1be37304d6ea5ff78696e05ad1023ce3c57f636c Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3109 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-19google/snow: Minor clean-ups for display setup code in ramstageDavid Hendricks
This just cleans up a few areas: - Removed an unnecessary delay from exynos_dp_bridge_setup() - The delay at the end of exynos_dp_bridge_init() is necessary, so removed the comment suggesting that it might not be. - Simplified exynos_dp_hotplug Change-Id: I44150f5ef3958e333985440c1022b4f1544a93aa Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3113 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-19google/snow: enable clock gating to save powerDavid Hendricks
This enables clock gating to save power on unused IPs. Change-Id: I9ab2a2535ebb91bb4110390a6f055a67146bdbf9 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3110 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-19[3/3] google/snow: enable TMUDavid Hendricks
This enables the thermal management unit (TMU) on Snow. Change-Id: Idd76af40bf0a5408baf61ef2665fd52ae4e260ba Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3108 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2013-04-17google/snow: enable 32KHz sleep clockDavid Hendricks
Change-Id: I9db91826e4534b8a6eea2b13bcf7c6abd848b4e4 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3075 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-16snow: Return 0 from get_recovery_mode_from_vbnv.Gabe Black
This function isn't yet used for much, or perhaps anything, but where it appears in the code it's ored with other values. Since we're not actually retrieving anything, it might be best to return 0 so that the other values that are being ored in can be expressed and this function can stay dormant until it actually has something to do. Change-Id: I6edc222a5c2d00ece2ecfad5191a615331eeaf16 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3098 Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins)
2013-04-16snow: Report the state of the power button GPIO in the coreboot tables.Gabe Black
Change-Id: Ia7ce2b7342e186c565b92211e3ac15d80ce24b38 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3097 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins)
2013-04-16snow: Configure the power button as an input GPIO.Gabe Black
We need to read it to report its value to the payload. The kernel will reconfigure it as an external interrupt, but we'll make it a regular input for now. Change-Id: I019bd2c2731144d3b7bb53fad0c2c903874f616c Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3096 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-04-16snow: Fix the name of some constants in romstage.c.Gabe Black
These names were inherited from chromeos.c where they've already been fixed. Change-Id: I7ad57b979b7b8f42f6bd68d1ecf887caba3fa3f1 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3095 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins)
2013-04-16snow: Get rid of the oprom loaded GPIO.Gabe Black
ARM doesn't use option ROMs, so this value doesn't make sense. Change-Id: I1a0f0854e1dd4b9594ca0c147e590337520436da Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3094 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins)
2013-04-16snow: Tidy up chromeos.c.Gabe Black
Got rid of a lot of #defines, some of which were converted to enums and the rest which were eliminated entirely. Got rid of cruft in get_developer_mode_switch and started using it for the dev mode GPIO. Instead of a macro defining how many GPIOs are expected, now the code actually counts the GPIOs as they're added. Change-Id: I97b6b9f52a72d1276eb3cf36d7f9dd7b335b4d19 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3093 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins)
2013-04-16snow: Add support for EC based recovery.Gabe Black
Implement the get_recovery_mode_switch function using the newly added I2C based Chrome EC support. Change-Id: I9d0200629887f202edf017cba3222a7d7f5b053e Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3092 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins)
2013-04-16snow: Fix some comments in chromeos.c.Gabe Black
The comment about the lid switch was left over from when this file was copied from another board and was incorrect. Also fixed a capitalization inconsistency. Change-Id: Icefd19047971e13c08f615578e4a181e82a2997f Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3091 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins)
2013-04-16ec/google: Support Google's Chrome EC on I2C interface.Hung-Te Lin
Google's Chrome EC can be installed on LPC or I2C bus, using different command protocol. This commit adds I2C support for devices like Google/Snow. Note: I2C interface cannot be automatically probed so the bus and chip number must be explicitly set. Verified by booting Google/Snow, with following console output: Google Chrome EC: Hello got back 11223344 status (0) Google Chrome EC: version: ro: snow_v1.3.108-30f8374 rw: snow_v1.3.128-e35f60e running image: 1 Change-Id: I8023eb96cf477755d277fd7991bdb7d9392f10f7 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3074 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-13exynos5/snow: remove wait_ms arg from dp_controller_init()David Hendricks
This removes the wait_ms argument from the dp_controller_init(). The only delay involved is a constant 60ms delay that happens if everything else goes well. This delay is derived from the LCD spec so there's no reason it should be baked into the controller code. (This patch also has the side-effect of fixing a bug where we were delaying on an undefined value for wait_ms). Change-Id: I03aa19f2ac2f720524fcb7c795e10cc57f0a226e Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3078 Reviewed-by: Gabe Black <gabeblack@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-13Exynos5250: add a microsecond timerRonald G. Minnich
Add a microsecond timer, its declaration, the function to start it, and its usage. To start it, one calls timer_start(). From that point on, one can call timer_us() to find microseconds since the timer was started. We show its use in the bootblock. You want it started very early. Finally, the delay.h change having been (ironically) delayed, we create time.h and have it hold one declaration, for the timer_us() and timer_start() prototype. We feel that these two functions should become the hardware specific functions, allowing us to finally move udelay() into src/lib where it belongs. Change-Id: I19cbc2bb0089a3de88cfb94276266af38b9363c5 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/3073 Tested-by: build bot (Jenkins)
2013-04-11Snow: Set up the ChromeOS GPIOs as inputs during the ROM stage.Gabe Black
We need these to be inputs so they can be read when populating the coreboot tables. It seems like a good idea to do this early to ensure that the input gate capacitance has had a chance to charge, and if we decide to use actually use that information during the ROM stage to do earlier RW firmware selection. It is not guarded by a ChromeOS config variable because those lines are always intended to be input GPIOs, regardless of whether we're running ChromeOS or not. Change-Id: Id76008931b5081253737c6676980a1bdb476ac09 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3067 Tested-by: build bot (Jenkins)
2013-04-11Snow: Fix the recovery GPIO polarity, and lid GPIO polarity and number.Gabe Black
Change-Id: I34097f878291367b28962048190e11ccaacfc514 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3066 Tested-by: build bot (Jenkins)
2013-04-10GOOGLE/SNOW: add edp support to ramstageRonald G. Minnich
Add basic edp support to the ramstage. Not working. Change-Id: I15086e03417edca7426c214e67b51719d8ed9341 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/3055 Tested-by: build bot (Jenkins)
2013-04-10GOOGLE/SNOW: clean up the device treeRonald G. Minnich
This is a simpler device tree that is also more correct, and has graphics settings as well. Change-Id: I342d8be7dddb76e6992876c73f5c625c926977d3 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/3053 Tested-by: build bot (Jenkins)
2013-04-10exynos5: Re-factor I2C codeDavid Hendricks
This re-factors the Exynos5 I2C code to be simpler and use the new API, and updates users accordingly. - i2c_read() and i2c_write() functions updated to take bus number as an argument. - Get rid of the EEPROM_ADDR_OVERFLOW stuff in i2c_read() and i2c_write(). If a chip needs special handling we should take care of it elsewhere, not in every low-level i2c driver. - All the confusing bus config functions eliminated. No more i2c_set_early_config() or i2c_set_bus() or i2c_get_bus(). All this is handled automatically when the caller does a transaction and specifies the desired bus number. - i2c_probe() eliminated. We're not a command-line utility. - Let the compiler place static variables automatically. We don't need any of this fancy manual data placement. - Remove dead code while we're at it. This stuff was ported early on and much of it was left commented out in case we needed it. Some also includes nested macros which caused gcc to complain. - Clean up #includes (no more common.h, woohoo!), replace debug() with printk(). Change-Id: I8e1f974ea4c6c7db9f33b77bbc4fb16008ed0d2a Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3044 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-09replace device/i2c.h with simpler versionDavid Hendricks
The existing header was imported along with the Exynos code and left mostly unchanged. This is the first patch in a series intended to replace the imported u-boot I2C API with a much simpler and cleaner interface: - We only need to expose i2c_read() and i2c_write() in our public API. Everything else is board/chip-dependent and should remain hidden away. - i2c_read and i2c_write functions will take bus number as an arg and we'll eliminate i2c_get_bus and i2c_set_bus. Those are prone to error and end up cluttering the code since the user needs to save the old bus number, set the new one, do the read/write, and restore the old value (3 added steps to do a simple transaction). - Stop setting default values for board-specific things like SPD and RTC bus numbers (as if we always have an SPD or RTC on I2C). - Death to all the trivial inline wrappers. And in case there was any doubt, we really don't care about the MPC8xx. Though if we did then we would not pollute the public API with its idiosyncrasies. Change-Id: I4410a3c82ed5a6b2e80e3d8c0163464a9ca7c3b0 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3043 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-08snow/exynos5250: move board-specific power stuff to mainboard dirDavid Hendricks
This moves highly board-specific code out from the Exynos5250 power_init() into Snow's romstage.c. There's no reason the CPU- specific code should care about which PMIC we are using and which bus it is on. Change-Id: I52313177395519cddcab11225fc23d5e50c4c4e3 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/3034 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-05exynos5-common: get rid of displayport trial codeRonald G. Minnich
This was a first pass at display port support, we have realized that it was ultimately a bad path. The display hardware is intimately tied into a specific cpu and mainboard combination, and the code has to be elsewhere. The devicetree formatting is ugly, but it matters not: it's changing soon. Change-Id: Iddce54f9e7219a7569315565fac65afbbe0edd29 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/3029 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-03-29snow: explicitly configure L2 cacheDavid Hendricks
This adds a call to explicitly configure L2 cache (though defaults should be set correctly). Change-Id: I120e29c986918c2904a0332e46fcf9f1c5380d85 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2950 Reviewed-by: Gabe Black <gabe.black@gmail.com> Tested-by: build bot (Jenkins)
2013-03-26Revert "samsung/exynos5: add resource functions for the display port"David Hendricks
This reverts commit 9427ca151e44644238b1b52138894195a9f5175f Looks like we were a bit too anxious to see this one get in. The devicetree.cb change seems to have broken things. coreboot memory table: 0. 0000000050000000-000000005000ffff: RESERVED 1. 00000000bff00000-00000000bfffffff: CONFIGURATION TABLES 2. 0000014004000000-00000140044007ff: RESERVED Before this patch: coreboot memory table: 0. 0000000040000000-00000000bfefffff: RAM 1. 00000000bff00000-00000000bfffffff: CONFIGURATION TABLES Change-Id: I618e4f1976265d56cfd6a61d0c5736c55a0f3cec Reviewed-on: http://review.coreboot.org/2914 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2013-03-26samsung/exynos5: add resource functions for the display portRonald G. Minnich
This does NOT turn on the graphics. The device tree has been changed enough so that, at the very least, the correct functions are called at the correct time, with the correct paramaters. We decided to yank the I2C entries as they did not obvious function and might not even have been correct. Not working, seemingly, but we need to add a 4M resource for memory, and it seems it needs to be fixed at the address shown. This address was chosen from current hardware. We realized that the display code should be part of the cpu -- that's how the hardware works! Change-Id: Ied65a554f833566be817540702f79a02e7b6cb6e Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/2615 Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
2013-03-26armv7: add new dcache and MMU setup functionsDavid Hendricks
This adds new MMU setup code. Most notably, this version uses cbmem_add() to determine the translation table base address, which in turn is necessary to ensure payloads which wipe memory can tell which regions to wipe out. TODOs: - Finish cleaning up references to old cache/MMU stuff - Add L2 setup (from exynos_cache.c) - Set up ranges dynamically rather than in ramstage's main(). Change-Id: Iba5295a801e8058a3694e4ec5b94bbe9a69d3ee6 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2877 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-22Unify coreboot table generationStefan Reinauer
coreboot tables are, unlike general system tables, a platform independent concept. Hence, use the same code for coreboot table generation on all platforms. lib/coreboot_tables.c is based on the x86 version of the file, because some important fixes were missed on the ARMv7 version lately. Change-Id: Icc38baf609f10536a320d21ac64408bef44bb77d Signed-off-by: Stefan Reinauer <reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/2863 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-by: Aaron Durbin <adurbin@google.com> Tested-by: build bot (Jenkins)
2013-03-19armv7/exynos/snow: new cache maintenance APIDavid Hendricks
This adds a new API for cache maintenance operations. The idea is to be more explicit about operations that are going on so it's easier to manage branch predictor, cache, and TLB cleans and invalidations. Also, this adds some operations that were missing but required early on, such as branch predictor invalidation. Instruction and sync barriers were wrong earlier as well since the imported API assumed we compield with -march=armv5 (which we don't) and was missing wrappers for the native ARMv7 ISB/DSB/DMB instructions. For now, this is a start and it gives us something we can easily use in libpayload for doing things like cleaning and invalidating dcache when doing DMA transfers. TODO: - Set cache policy explicitly before re-enabling. Right now it's left at default. - Finish deprecating old cache maintenance API. - We do an extra icache/dcache flush when going from bootblock to romstage. Change-Id: I7390981190e3213f4e1431f8e56746545c5cc7c9 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2729 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-19google/snow: fix a GPIO array indexDavid Hendricks
This fixes a trivial error with the recovery mode GPIO index. Change-Id: I7290c1e23cdddaf91c9021d4e4252c0c772b6eab Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2825 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-03-13exynos5250/snow: enable branch predictionDavid Hendricks
This enables branch prediction. We can probably find a better place to do this, but for now we'll do it in snow's romstage main(). Change-Id: I86c7b6bc9e897a7a432c490fb96a126e81b8ce72 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2701 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-13exynos5250/snow: call PMIC's power_init() functionDavid Hendricks
Call the power_init() function. We appear to have forgotten about it when deprecating lowlevel_init_subsystems(), but it didn't seem to cause problems until we got to doing more interesting stuff recently. There are some clean-ups to do from the original code, such as not attempting to configure I2C from PMIC code, which we'll get around to in follow-up patches. (Credit to Gabe for spotting this) Change-Id: I6a59379e9323277d0b61469de9abe6d651ac5bfb Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2699 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-08ARMV7 and Google/Snow: Add exception support code to the ramstageRonald G. Minnich
This is previously used exception code from libpayload. On startup it installs and then tests an exception handler. The test is an unaligned memory operation. Yes, we've seen what might be exceptions in the ramstage, and it makes sense to handle them. This code is identical in structure and operation to the previously committed payload exception handler, though we reserve the right to change it as circumstances require. The remaining question is whether we need it in romstage. Change-Id: I24484686c33c9757af8ba171ebae9773828fb69d Signed-off-by: Gabe Black <gabeblack@google.com> Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/2614 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2013-03-07snow: add real values for GPIOs in fill_lb_gpios()David Hendricks
This adds some real GPIO mappings where virtual GPIOs were used before. Change-Id: I25d4be45f986c8d622b97151f8bdae2651baf3e6 Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2603 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-07google/snow: fix coding styleStefan Reinauer
cosmetics Change-Id: Iea33768d901641861aa7b2c76af8753a848f584d Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2601 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
2013-03-06samsung/exynos5: add display port and framebuffer defines and initializationRonald G. Minnich
These are essential functions for setting up the display port and framebuffer, and also enable such things as aux channel communications. We do some very simple initialization in romstage, mainly set a GPIO so that the graphics is powering up, but the complex parts are done in the ramstage. This mirrors the way in which graphics is done in the x86 size. I've added a first pass at a real device, and put it in the mainboard Kconfig, hoping for corrections. Because startup is so complex, depending on device type, I've created a 'displayport' device that removes some of the complexity and makes the flow *much* clearer. You can actually follow the flow by looking at the code, which is not true on other implementations. Since display port is perhaps the main port used on these chips, that's a reasonable compromise. All parameters of importance are now in the device tree. Change-Id: I56400ec9016ecb8716ec5a5dae41fdfbfff4817a Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/2570 Tested-by: build bot (Jenkins)
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