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2016-10-06rockchip: spi: Add support for 16-bit APB readsSimon Glass
With a SPI clock above about 24MHz the APB cannot keep up when doing individual byte transfers. Adjust the driver to use 16-bit reads when it can, to remove this bottleneck. Any transaction which involves writing bytes still uses 8-bit transfers, to simplify the code. These are the transfers that are not time-critical since they tend to be small. The case that really matters is reading from SPI flash. In general we can use 16-bit reads anytime we are transferring an even number of bytes. If the code detects an odd number of bytes, it tries to perform the operation in two steps: once in 16-bit mode with an even number of bytes, and once in 8-bit mode for the final byte. This allow us to use 16-bit reads even if asked to transfer (for example) 0xf423 bytes. The limit on in_now and out_now is adjusted to 0xfffe to avoid an extra transfer when transferring ~>=64KB. CQ-DEPEND=CL:383232 BUG=chrome-os-partner:56556 BRANCH=none TEST=boot on gru and see that things still work correctly. I tested (with extra debugging) that the 16-bit case is being picked when it should be. Change-Id: If5effae9a84e4de06537fd594bedf7f01d6a9c88 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: ec250b4931c7d99cc014e32ab597fca948299d08 Original-Change-Id: Idc5b7e5d82cdbdc1e8fe8b2d6da819edf2d5570c Original-Signed-off-by: Simon Glass <sjg@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/381312 Original-Commit-Ready: Julius Werner <jwerner@chromium.org> Original-Tested-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/16712 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2016-10-04rockchip: spi: Set rxd sample delay when using high speedSimon Glass
At higher SPI bus speeds the SPI RX value is not available in time for sampling at the normal time. Add a delay to ensure that we read the correct data. The value of 40ns is chosen arbitrarily. In my testing I can use a sample delay of 1 even at 24MHz. But since it is not necessary, I have left that case alone. It kicks in at 25MHz and up. BUG=chrome-os-partner:56556 BRANCH=none TEST=boot on gru and see no change at current speed Change-Id: I3ef335d9a532eaef1e76034bd02e185acf11176a Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: e9b620c47fc3e39211487507fadb8657afdebee7 Original-Change-Id: I65d66d752cbbbee4d02f475de23a52069a0e9782 Original-Signed-off-by: Simon Glass <sjg@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/381311 Original-Commit-Ready: Julius Werner <jwerner@chromium.org> Original-Tested-by: Simon Glass <sjg@google.com> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/16707 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-10-04rockchip: Remove pulls for gpio_output(), clean up codeJulius Werner
Output GPIOs should never have a pull-up or pull-down resistor attached since they're actively driven. Since some GPIOs get initialized with a pull at power-on reset, we should explicitly overwrite that setting. Most other platforms do this on gpio_output, but Rockchip hadn't yet. Also, shuffle some code around to make things cleaner and allow for easier code reuse. BRANCH=None BUG=chrome-os-partner:52526 TEST=Booted Kevin. Change-Id: I1425d074ea1e90f4484e1e84a8002b057192c5f7 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: df5b236bfd58b172435043c1cb792b917a4ec4ab Original-Change-Id: I044266d71ef8bd0518316ff72d829d1ca1e30f35 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/382531 Original-Reviewed-by: Simon Glass <sjg@google.com> Reviewed-on: https://review.coreboot.org/16710 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-09-20rockchip: spi: Improve SPI read efficiencySimon Glass
The SPI driver is quite slow at reading data. For example, with a 24MHz clock on gru it achieves a read speed of only 13.9Mbps. We can correct this by reading the status registers once, then reading as many bytes as are available before checking the status registers again. It seems likely that a status register read requires synchronizing with the SPI FIFO clock domain, which takes a while. BUG=chrome-os-partner:56556 BRANCH=none TEST=run on gru and see the speed increase from 13.920 Mbps to 24.712 Mbps Change-Id: I24aed0c9c6c5445634c4e056922afaee4e9a7b33 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 49c2fc20d7d7d703763e9b0a6f68313a349a84b9 Original-Change-Id: I42745f01f0fe069f6ae26d866004d36bb257e6b2 Original-Signed-off-by: Simon Glass <sjg@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/376945 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/16582 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-08-10rockchip/common: Set weekday to unknown in rtc_get()Martin Roth
Prior to this patch, time->wday was not being initialized in rtc_get(), but was still being used by rtc_display() to print a day. Set to -1 which gets printed as "unknown ". Fixes coverity issue 1357459 - Uninitialized scalar variable Change-Id: Idecb7968f854df997b58a342e1a06a879f299394 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/15899 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Julius Werner <jwerner@chromium.org>
2016-07-12rockchip/rk3399: Fix pinctrl pull bias settingsShunqian Zheng
The pull bias settings for GPIO0_A, GPIO0_B, GPIO2_C and GPIO2_D are different from the other GPIO banks. This patch adds a callback function to get the GPIO pull value of each SoC(rk3288 and rk3399) so we can still use the common GPIO driver. BRANCH=none BUG=chrome-os-partner:53251 TEST=Jerry and Gru still boot Change-Id: I2a00b7ffd2699190582f5f50a1e21b61c500bf4f Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 46d5fa7297693216a2da9bcf15ccce4af796e80e Original-Change-Id: If53f47181bdc235a1ccfefeeb2a77e0eb0e3b1ca Original-Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com> Original-Reviewed-on: https://chromium-review.googlesource.com/358110 Original-Commit-Ready: Julius Werner <jwerner@chromium.org> Original-Tested-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/15587 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-06-21rockchip: gpio: add macro so we can get gpio numberLin Huang
sometimes we need gpio number, so add this macro so we can get the gpio number if we need. BRANCH=None BUG=chrome-os-partner:51924 TEST=Build gru Change-Id: I0c8c6cc0643a66e9ae1f21b02c7364c641b9805d Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: Original-Change-Id: I98e8cf15543179904295a86e9f720c2d7c8b443a Original-Signed-off-by: Lin Huang <hl@rock-chips.com> Original-Reviewed-on: https://chromium-review.googlesource.com/349701 Original-Commit-Ready: Douglas Anderson <dianders@chromium.org> Original-Tested-by: Douglas Anderson <dianders@chromium.org> Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/15117 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-05-18rockchip: revert the common tsadc headerShunqian Zheng
The tsadc of rk3288 and rk3399 are similar but not enough to share the same common driver, and we also decide to add a polarity setting for mainboards on rk3399 tsadc header. So we'd better split the tsadc header for each SoC. BRANCH=none BUG=chrome-os-partner:51537 TEST=build veyron_jerry Change-Id: I41f08965e6d7ce16da1754d4d2512c826cf8aff5 Signed-off-by: Martin Roth <martinroth@google.com> Original-Commit-Id: b36ee54c4146623bcacd83fe7d55a4fc78bae792 Original-Change-Id: I629599f9e30d863cabf764e1372c38f0f39d5480 Original-Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com> Original-Reviewed-on: https://chromium-review.googlesource.com/342796 Original-Tested-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/14847 Tested-by: build bot (Jenkins) Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
2016-05-09rockchip: move vop driver from rk3288 to rockchip commonShunqian Zheng
The rk3288 and rk3399 can use a common driver even that there are some different registers. BRANCH=none BUG=chrome-os-partner:51537 TEST=boot from veyron_jerry and check display Change-Id: I510f68ba00308e47608d6e9921154a5c66ad8858 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 1d857a7aa68d831a5007210255b121fed7a9e8de Original-Change-Id: I063e3eebc836debc01c450d8ab9f1524c9a47c56 Original-Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com> Original-Reviewed-on: https://chromium-review.googlesource.com/341633 Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/14731 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-05-09rockchip/*: refactor edp driverLin Huang
rk3288 and rk3399 use same edp IP, move soc specific setting to soc/display, and move edp driver to common, so rk3399 can reuse this driver. BUG=chrome-os-partner:52460 BRANCH=none TEST= test on jerry and mighty, edp panel can work Change-Id: Ie3f3e8468b2323994af8a002413bf93b3edc8026 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 64bb4b2c7ed373d9730c9aa0b0896a32164fc7ee Original-Change-Id: Ie5c15a81849a02d1c0457e36ed00fbe2d47961fb Original-Signed-off-by: Lin Huang <hl@rock-chips.com> Original-Reviewed-on: https://chromium-review.googlesource.com/340504 Original-Commit-Ready: Vadim Bendebury <vbendeb@chromium.org> Original-Tested-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/14725 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-05-09rockchip/spi: Allow SPI buses > 2Patrick Georgi
If SPI_BASEx is defined (for 2 < x <= 5), allow selecting it. Since the bus number translates into an offset into an array, require that all earlier buses are defined, too. Also assert() that the array is properly sized instead of blindly exceeding its bounds when called with a too big bus number. TEST=initializing bus 5 doesn't trap anymore on kevin BRANCH=none BUG=none Change-Id: I69f8ebe10854976608197a13d223ee8a555a9545 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: c4af2a4ad4d6eea551653ca300ea6d04f1280919 Original-Change-Id: I27724d64d822ed0ec824a69ed611140bfbe08f5a Original-Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Original-Reviewed-on: https://chromium-review.googlesource.com/341034 Original-Commit-Ready: Vadim Bendebury <vbendeb@chromium.org> Original-Tested-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/14723 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-05-09rockchip: make sure sdram top does not spill into MMIO spaceLin Huang
The base address of MMIO space is different for different Rockchip SOCs. Define them in the appropriate address map files and use the definition in common code. BRANCH=none BUG=chrome-os-partner:51537 TEST=emerge-kevin coreboot Change-Id: I615f3cadd6d5d994b7dd1defbd10d02ad5c994da Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 24f941e960e4a2cfb9fc26415f56e240de3d00d9 Original-Change-Id: Ia48d75e7de546b17636cde7829ee09837b9d7ac9 Original-Signed-off-by: Lin Huang <hl@rock-chips.com> Original-Reviewed-on: https://chromium-review.googlesource.com/337190 Original-Commit-Ready: Vadim Bendebury <vbendeb@chromium.org> Original-Tested-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/14717 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-05-09rockchip: refactor gpio driverShunqian Zheng
The gpio of rockchip SoCs(rk3288 & rk3399) are the same IP, moving the gpio code of rk3288 to common then can be reused on rk3399. BRANCH=none BUG=chrome-os-partner:51537 TEST=build and boot into chromeos on veyron_jerry Change-Id: I10a4b9d32afe60fd52512f2ad0007e9d2785033b Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 1c0c4b4b999790b0be7b0eeb70d2a7a86158f779 Original-Change-Id: If13b7760108831d81e8e8c950cdf61724d497b17 Original-Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com> Original-Reviewed-on: https://chromium-review.googlesource.com/339846 Original-Commit-Ready: Vadim Bendebury <vbendeb@chromium.org> Original-Tested-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/14712 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-05-09rockchip/rk*: replace UART special snowflake with standard driverPatrick Georgi
The standard uart8250mem_32 driver is now usable on ARM, so use it. BUG=none BRANCH=none TEST=see that serial firmware builds still log on serial in all stages on veyron_minnie. Also verified that a 9600 baud console is functional. Change-Id: I653b70a0d51a8d136e1da17537988f5b33c7a160 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: fa27c60fd38002775072d11fca431d4788b4d1d7 Original-Change-Id: I047d74ac2d5c311f303955e62391114e16ec087a Original-Signed-off-by: Patrick Georgi <pgeorgi@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/337551 Original-Commit-Ready: Patrick Georgi <pgeorgi@chromium.org> Original-Tested-by: Patrick Georgi <pgeorgi@chromium.org> Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/14319 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-04-13rockchip/common: do not retrieve register pointer twiceVadim Bendebury
The driver interface function derives the driver specific pointer from the API provided handle, no need to use the handle in the local functions. BRANCH=none BUG=none TEST=SPI interface with the flash ROM is still working properly. Change-Id: I7725b658365473c733698ca050e780d1dd5072d9 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: a2b42779785623bd1234ab2dfb0b4db76c890fc7 Original-Change-Id: I9d657dc23540e9eac52d2dbfc551ed32b7fa98f0 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/338090 Original-Reviewed-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/14318 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2016-04-13rockchip/rk3288: refactor pwm driverLin Huang
3288 and 3399 use the same pwm controller. With this patch in place it is easy to add support for 3399. BRANCH=none BUG=none TEST=booted veyron_jerry to kernel login prompt Change-Id: If8f5697b4003d078b46de3fa3cebad6c8310a688 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: acf6132619167743c0c991b75f0f49c8d0e51ca7 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Change-Id: I79428f9ec71017ad8f3ad67dac1468178ccc3a1e Original-Reviewed-on: https://chromium-review.googlesource.com/338019 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/14336 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-04-13rockchip/rk3288: refactor i2c interface to allow support of rk3399huang lin
Both SOCs use the same base i2c controller, the difference mostly being the number of interfaces and distribution of the interfaces' registers between register files. Upload check was complaining about misspelled labels, fixed them to pacify the check. With this patch in place it is easy to add support for 3399. BUG=none BRANCH=none TEST=brought up veyron_mickey all the way to booting the kernel. It properly recognized the TPM and the edid of the panel, proving that i2c interface is operational. Change-Id: I656640feabd0fc01d2c3b98bc5bd1e5f76f063f6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 82832dfd4948ce9a5034ea8ec0463ab82f0f5754 Original-Change-Id: I4829ea53e5f4cb055793d9a7c9957d6438138956 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/337971 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/14335 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-04-07rockchip: refactor to sharing code among similar SOCsVadim Bendebury
Upcoming designs are based on similar SOCs, this patch moves code which can be reused into a common directory under soc/rockchip. Changing spi.h to include stdder.h, as this is were check_member() is defined, this becomes necessary later when the new SOC code is added. Renaming UART driver private functions not to be bound to any particular SOC. BUG=none BRANCH=none TEST=the refactored code works fine on the new platform (with the rest of the patches applied). Change-Id: I39a505aecda8849daa58a8eca0e44a5243664423 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: f63f2582042ac115481207ddf329ea2e3260e55e Original-Change-Id: I3a1139305354d460492b25a45f3da315a9a0b49e Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/335408 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/14235 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
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