mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-01 00:49:43 +00:00
777544085d
Add minimal support for Altera's SOCFPGA Cyclone 5 hardware. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Signed-off-by: Chin Liang See <clsee@altera.com> Signed-off-by: Pavel Machek <pavel@denx.de> Reviewed-by: Marek Vasut <marex@denx.de> Acked-by: Tom Trini <trini@ti.com> Cc: Wolfgang Denx <wd@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Stefan Roese <sr@denx.de> ---- v8: Remove no_return attribute for reset_cpu Based on v2012.10-rc2
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
|
|
* Copyright (C) 2012 Altera Corporation <www.altera.com>
|
|
*
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/reset_manager.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static const struct socfpga_reset_manager *reset_manager_base =
|
|
(void *)SOCFPGA_RSTMGR_ADDRESS;
|
|
|
|
/*
|
|
* Write the reset manager register to cause reset
|
|
*/
|
|
void reset_cpu(ulong addr)
|
|
{
|
|
/* request a warm reset */
|
|
writel(RSTMGR_CTRL_SWWARMRSTREQ_LSB, &reset_manager_base->ctrl);
|
|
/*
|
|
* infinite loop here as watchdog will trigger and reset
|
|
* the processor
|
|
*/
|
|
while (1)
|
|
;
|
|
}
|
|
|
|
/*
|
|
* Release peripherals from reset based on handoff
|
|
*/
|
|
void reset_deassert_peripherals_handoff(void)
|
|
{
|
|
writel(0, &reset_manager_base->per_mod_reset);
|
|
}
|
|
|
|
int dram_init(void)
|
|
{
|
|
gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
|
|
return 0;
|
|
}
|