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574df1ba67
These functions will allow us to remove hardcodes, as long as we can verify the qemu and lowrisc targets implement the configstring correctly. Hence, for the most part, we'll start with mainboard changes first. Define a new config variable, CONFIG_RISCV_CONFIGSTRING, which has a default value that works on all existing systems but which can be changed as needed for a new SOC or mainboard. Change-Id: I7dd3f553d3e61f1c49752fb04402b134fdfdf979 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: https://review.coreboot.org/17256 Tested-by: build bot (Jenkins) Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
54 lines
2.1 KiB
C
54 lines
2.1 KiB
C
/*
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* Copyright (c) 2013-2016, The Regents of the University of California
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*(Regents).
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* All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Regents nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
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* SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
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* ARISING
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* OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
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* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
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* HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
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* MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*/
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#include <config.h>
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#include <string.h>
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#include <commonlib/configstring.h>
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void query_mem(const char *config_string, uintptr_t *base, size_t *size)
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{
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query_result res = query_config_string(config_string, "ram{0{addr");
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*base = get_uint(res);
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res = query_config_string(config_string, "ram{0{size");
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*size = get_uint(res);
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}
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/* query_rtc returns the physical address of the rtc. */
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void query_rtc(const char *config_string, uintptr_t *mtime)
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{
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query_result res = query_config_string(config_string, "rtc{addr");
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*mtime = (uintptr_t)get_uint(res);
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}
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const char *configstring(void)
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{
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uint32_t addr = *(uint32_t *)CONFIG_RISCV_CONFIGSTRING;
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return (const char *)(uintptr_t)addr;
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}
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