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* soc/sifive/fu540: Get SDRAM controller out of resetPhilipp Hug2018-09-131-0/+34
| | | | | | | | Change-Id: Ifa6faffbaf353379f57e0f80c1c4ca2fc380f874 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/28583 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
* soc/sifive/fu540: Update clock settings according SiFive bootloaderPhilipp Hug2018-09-131-8/+30
| | | | | | | | | | | The documentation unfortunately doesn't match what SiFive uses in their FSBL. Use the same values as in FSBL to make DDR RAM work. Change-Id: I844cc41ed197333adeae495e71ea70b4a9603650 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/28582 Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
* uart/sifive: make divisor configurablePhilipp Hug2018-09-132-1/+9
| | | | | | | | | | | | | | The SiFive UART on the HiFive Unleashed uses the tlclk as input clock which runs at coreclk / 2. The input frequency is configured in the board code depending on the current stage. (bootblock + romstage run at 33.33Mhz, ramstage at 1Ghz) Change-Id: Iaf66723dba3d308f809fde5b05dfc3e43f43bd42 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/27440 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
* soc/sifive/fu540: Initialize PLL and clockPhilipp Hug2018-09-122-0/+202
| | | | | | | | Change-Id: Iba0669e08940e373aaf42cbba3a1ceffd68a4f52 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/27439 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
* soc/sifive: fix compiler warningPhilipp Hug2018-09-101-1/+1
| | | | | | | | | | | | | Fix the following compiler warning on the latest toolchain: src/soc/sifive/fu540/otp.c:48:1: error: useless storage class specifier in empty declaration [-Werror] } __packed; ^ Change-Id: Ice87c821de7650ac547394efa2a4bcc5ae1ea668 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/28553 Tested-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
* soc/sifive/fu540: Makefile: include mtime_init in ramstagePhilipp Hug2018-09-101-0/+1
| | | | | | | | | | | Fix compilation issue clint.c/mtime.c is needed as well in ramstage due to CR 28372 and 28355 Change-Id: I7c7768744a165b97978bb8f7f95acf7b32ca4aa4 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/28551 Tested-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
* soc/sifive/fu540: Add driver for OTP memoryPhilipp Hug2018-09-103-0/+129
| | | | | | | | | | | Provides minimal functionality to read the SOC s/n from the NeoFuse one time programmable memory. Change-Id: I14b010ad9958931e0a98a76f76090fd7c66f19a0 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/27435 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
* soc/sifive/fu540: add CLINT supportXiang Wang2018-09-104-7/+42
| | | | | | | | Change-Id: Ibc3a8644dcb83d5697d9d6e551c7682377285116 Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/28355 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
* riscv: update mtime initializationXiang Wang2018-09-102-0/+23
| | | | | | | | | | Add a interface, which is implemented by SoC. Change-Id: I5524732f6eb3841e43afd176644119b03b5e5e27 Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/28372 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
* riscv: separately define stack locations at different stagesXiang Wang2018-09-021-2/+3
| | | | | | | | | | | | BOOTBLOCK/ROMSTAGE run in CAR/scratchpad. When RAMSTAGE begins execution will enable cache, then CAR will disappear. So the Stack will be separated. Change-Id: I37a0c1928052cabf61ba5c25b440363b75726782 Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/28383 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
* sifive/fu540: add empty sdram init and size functionsPhilipp Hug2018-07-183-0/+59
| | | | | | | | Change-Id: I65f900a3277bc8a4a83ebc8883d4a325bd690bf8 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/27438 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
* riscv: add support for modifying compiler optionsXiang Wang2018-07-171-0/+12
| | | | | | | | | | | | | | Each HART of a SoC like fu540 supports a different ISA. In order for the coreboot's code can run on each core, need to modify the compile options. So add this code. Change-Id: Ie33edc175e612846d4a74f3cbf7520d4145cb68b Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/27442 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Philipp Hug <philipp@hug.cx>
* src/sifive: Add the SiFive Freedom Unleashed 540 SoCJonathan Neuschäfer2018-04-269-0/+226
The FU540 is the first RISC-V SoC with the necessary resources to run Linux (an external memory interface, MMU, etc). More information is available on SiFive's website: https://www.sifive.com/products/hifive-unleashed/ Change-Id: Ic2a3c7b1dfa56b67cc0571969cc9cf67a770ae43 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/25789 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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