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/*
* 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.
*
*/
#include <common.h>
#include <bootsource.h>
#include <environment.h>
#include <init.h>
#include <io.h>
#include <mach/cyclone5-system-manager.h>
#include <mach/cyclone5-regs.h>
#include <mach/arria10-system-manager.h>
#define CYCLONE5_SYSMGR_BOOTINFO 0x14
static int cyclone5_boot_save_loc(void)
{
enum bootsource src = BOOTSOURCE_UNKNOWN;
uint32_t val;
val = readl(CYCLONE5_SYSMGR_ADDRESS + CYCLONE5_SYSMGR_BOOTINFO);
switch (val & 0x7) {
case 0:
/* reserved */
break;
case 1:
/* FPGA, currently not decoded */
break;
case 2:
case 3:
src = BOOTSOURCE_NAND;
break;
case 4:
case 5:
src = BOOTSOURCE_MMC;
break;
case 6:
case 7:
src = BOOTSOURCE_SPI;
break;
}
bootsource_set(src);
bootsource_set_instance(0);
return 0;
}
static int arria10_boot_save_loc(void)
{
enum bootsource src = BOOTSOURCE_UNKNOWN;
uint32_t val;
val = readl(ARRIA10_SYSMGR_BOOTINFO);
switch ((val & 0x7000) >> 12) {
case 0:
/* reserved */
break;
case 1:
/* FPGA, currently not decoded */
break;
case 2:
case 3:
src = BOOTSOURCE_NAND;
break;
case 4:
case 5:
src = BOOTSOURCE_MMC;
break;
case 6:
case 7:
src = BOOTSOURCE_SPI;
break;
}
bootsource_set(src);
bootsource_set_instance(0);
return 0;
}
static int socfpga_boot_save_loc(void)
{
if (IS_ENABLED(CONFIG_ARCH_SOCFPGA_ARRIA10))
return arria10_boot_save_loc();
else
return cyclone5_boot_save_loc();
}
core_initcall(socfpga_boot_save_loc);
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