211a5d56db
This patch does a few things to get us into romstage: - Add romstage as a stage (a later patch adds it as a binary, which is probably wrong). The Makefile magic is complex enough that we let it build the XIP file for now, but we no longer use it. - Replace findstage with loadstage. Loadstage will find a stage, load the code to memory, and zero the remaining part of memory. Now we can link the romstage to go anywhere! - Eliminate magic offsets from code/ldscripts and centralize Kconfig variables in src/cpu/samsung/exynos5250/Kconfig. - Tidy up code and serial output Change-Id: Iae4d2f9e7f429cb1df15d49daf9a08b88d75d79d Signed-off-by: David Hendricks <dhendrix@chromium.org> Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/2174 Tested-by: build bot (Jenkins)
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/*
|
|
* This file is part of the coreboot project.
|
|
*
|
|
* Copyright (C) 2013 The Chromium OS Authors
|
|
*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#if 0
|
|
/*
|
|
* Set/clear program flow prediction and return the previous state.
|
|
*/
|
|
static int config_branch_prediction(int set_cr_z)
|
|
{
|
|
unsigned int cr;
|
|
|
|
/* System Control Register: 11th bit Z Branch prediction enable */
|
|
cr = get_cr();
|
|
set_cr(set_cr_z ? cr | CR_Z : cr & ~CR_Z);
|
|
|
|
return cr & CR_Z;
|
|
}
|
|
#endif
|
|
|
|
void bootblock_cpu_init(void);
|
|
void bootblock_cpu_init(void)
|
|
{
|
|
volatile unsigned long *pshold = (unsigned long *)0x1004330c;
|
|
*pshold |= 0x100;
|
|
}
|