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| author | Ronald G. Minnich <rminnich@gmail.com> | 2016-10-24 16:27:19 -0700 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2016-10-25 22:31:06 +0200 |
| commit | 5817a1555754709da92cae7f254d540e2b488cec (patch) | |
| tree | 4532053e80cb462f0d5a9493ae8c08c93a1470dc /src/soc/lowrisc | |
| parent | 64e341ec1654645b77c9ec158b01fb992a44b882 (diff) | |
| download | coreboot-5817a1555754709da92cae7f254d540e2b488cec.tar.xz | |
riscv: add the lowrisc System On Chip support
Change-Id: I8d81b9cf280e724c935106c8f00692300094ad3f
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://review.coreboot.org/17119
Tested-by: build bot (Jenkins)
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Diffstat (limited to 'src/soc/lowrisc')
| -rw-r--r-- | src/soc/lowrisc/lowrisc/Kconfig | 14 | ||||
| -rw-r--r-- | src/soc/lowrisc/lowrisc/Makefile.inc | 6 | ||||
| -rw-r--r-- | src/soc/lowrisc/lowrisc/cbmem.c | 23 |
3 files changed, 43 insertions, 0 deletions
diff --git a/src/soc/lowrisc/lowrisc/Kconfig b/src/soc/lowrisc/lowrisc/Kconfig new file mode 100644 index 0000000000..528e7444f7 --- /dev/null +++ b/src/soc/lowrisc/lowrisc/Kconfig @@ -0,0 +1,14 @@ +config SOC_LOWRISC_LOWRISC + select ARCH_RISCV + select ARCH_BOOTBLOCK_RISCV + select ARCH_VERSTAGE_RISCV + select ARCH_ROMSTAGE_RISCV + select ARCH_RAMSTAGE_RISCV + select BOOTBLOCK_CONSOLE + select DRIVERS_UART_8250MEM_32 + bool + default n + +if SOC_LOWRISC_LOWRISC + +endif diff --git a/src/soc/lowrisc/lowrisc/Makefile.inc b/src/soc/lowrisc/lowrisc/Makefile.inc new file mode 100644 index 0000000000..343c909377 --- /dev/null +++ b/src/soc/lowrisc/lowrisc/Makefile.inc @@ -0,0 +1,6 @@ +ifeq ($(CONFIG_SOC_LOWRISC_LOWRISC),y) + +romstage-y += cbmem.c +ramstage-y += cbmem.c + +endif diff --git a/src/soc/lowrisc/lowrisc/cbmem.c b/src/soc/lowrisc/lowrisc/cbmem.c new file mode 100644 index 0000000000..ea7ad7027c --- /dev/null +++ b/src/soc/lowrisc/lowrisc/cbmem.c @@ -0,0 +1,23 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <console/console.h> +#include <cbmem.h> + +void *cbmem_top(void) +{ + // TODO: find out how the lowrisc SOC decides to provide + // this information, when they know. + printk(BIOS_SPEW, "Returning hard-coded 128M; fix me\n"); + return (void *)((uintptr_t)(2ULL*GiB+128*MiB)); +} |