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ti/am335x: switch to generic udelay 

Change-Id: Iac1ddbb95768dea98917211aa995f4111bf82647
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/9617
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Patrick Georgi 2015-04-13 18:21:21 +02:00 committed by Patrick Georgi
parent 8fa8f4bdc3
commit d1707b0152
3 changed files with 1 additions and 52 deletions
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1
src/cpu/ti/am335x/Kconfig
View File

@ -7,6 +7,7 @@ config CPU_TI_AM335X
select HAVE_UART_SPECIAL
select BOOTBLOCK_CONSOLE
select CPU_HAS_BOOTBLOCK_INIT
select GENERIC_UDELAY
bool
default n

1
src/cpu/ti/am335x/Makefile.inc
View File

@ -9,7 +9,6 @@ romstage-y += cbmem.c
ramstage-y += dmtimer.c
ramstage-y += monotonic_timer.c
ramstage-y += nand.c
ramstage-y += timer.c
ramstage-y += cbmem.c
ifeq ($(CONFIG_DRIVERS_UART),y)

51
src/cpu/ti/am335x/timer.c
View File

@ -1,51 +0,0 @@
/*
* Copyright (C) 2013 Google Inc.
*
* See file CREDITS for list of people who contributed to this
* 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; either version 2 of
* the License, or (at your option) any later version.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <console/console.h>
#include <delay.h>
#include <timer.h>
void init_timer(void)
{
}
/* delay x useconds */
void udelay(unsigned usec)
{
struct mono_time current, end;
timer_monotonic_get(&current);
end = current;
mono_time_add_usecs(&end, usec);
if (mono_time_after(&current, &end)) {
printk(BIOS_EMERG, "udelay: 0x%08x is impossibly large\n",
usec);
/* There's not much we can do if usec is too big. Use a long,
* paranoid delay value and hope for the best... */
end = current;
mono_time_add_usecs(&end, USECS_PER_SEC);
}
while (mono_time_before(&current, &end))
timer_monotonic_get(&current);
}