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riscv: bring in the configstring parsing functions from UCB

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I've tested this with commits to come later.

This is from the lowrisc bbl distribution, 87588c4,
with fixes so it builds.

Change-Id: I87893638872259c94d6972e1971578b633155e7e
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://review.coreboot.org/17255
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Ronald G. Minnich
2016-11-06 20:51:18 -08:00
parent 96b3c6f937
commit 04c94ded3a
2 changed files with 263 additions and 0 deletions
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54
src/commonlib/configstring.c Normal file
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/*
* Copyright (c) 2013-2016, The Regents of the University of California
*(Regents).
* All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Regents nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
* SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
* ARISING
* OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
* HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
* MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*/
#include <config.h>
#include <assert.h>
#include <string.h>
#include <commonlib/configstring.h>
void query_mem(const char *config_string, uintptr_t *base, size_t *size)
{
query_result res = query_config_string(config_string, "ram{0{addr");
*base = get_uint(res);
res = query_config_string(config_string, "ram{0{size");
*size = get_uint(res);
}
/* query_rtc returns the physical address of the rtc. */
void query_rtc(const char *config_string, uintptr_t *mtime)
{
query_result res = query_config_string(config_string, "rtc{addr");
*mtime = (uintptr_t)get_uint(res);
}
const char *configstring(void)
{
uint32_t addr = *(uint32_t *)CONFIG_ARCH_CONFIGSTRING_RISCV;
return (const char *)(uintptr_t)addr;
}