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2018-12-05soc/sifive/fu540: Add helper function to get tlclk frequencyJonathan Neuschäfer
tlclk is not specific to the UART block in the FU540, so let's calculate its frequency in clock.c. Change-Id: I270920027f1132253e413a1bf9feb4fe279b651a Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/c/29335 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Philipp Hug <philipp@hug.cx>
2018-11-05riscv: add support smp_pause / smp_resumeXiang Wang
See https://doc.coreboot.org/arch/riscv/ we know that we need to execute smp_pause at the start of each stage and smp_resume at the end of each stage. Change-Id: I6f8159637bfb15f54f0abeb335de2ba6e9cf82fb Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/29023 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Philipp Hug <philipp@hug.cx>
2018-10-30sifive/fu540: correct cbmem supportPhilipp Hug
Return correct memory location for cbmem instead of incorrectly returning memory size. Change-Id: If7f490a46edebb04c2280bf317d1adacef08f30d Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/29197 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Xiang Wang <wxjstz@126.com> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-09-14soc/sifive/fu540: Initialize SDRAMPhilipp Hug
Based on SiFive bootloader code Change-Id: I71043ce9e458e25e64da28d53cd36b02d2e22acc Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/28604 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-09-12soc/sifive/fu540: Initialize PLL and clockPhilipp Hug
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>
2018-09-10soc/sifive/fu540: Add driver for OTP memoryPhilipp Hug
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>
2018-09-10soc/sifive/fu540: add CLINT supportXiang Wang
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>
2018-09-02riscv: separately define stack locations at different stagesXiang Wang
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>
2018-07-18sifive/fu540: add empty sdram init and size functionsPhilipp Hug
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>
2018-04-26src/sifive: Add the SiFive Freedom Unleashed 540 SoCJonathan Neuschäfer
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>