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// SPDX-License-Identifier: GPL-2.0+
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <asm/arch/j721s2_spl.h>
static u32 __get_backup_bootmedia(u32 main_devstat)
{
u32 bkup_boot = (main_devstat & MAIN_DEVSTAT_BKUP_BOOTMODE_MASK) >>
MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT;
switch (bkup_boot) {
case BACKUP_BOOT_DEVICE_USB:
return BOOT_DEVICE_DFU;
case BACKUP_BOOT_DEVICE_UART:
return BOOT_DEVICE_UART;
case BACKUP_BOOT_DEVICE_ETHERNET:
return BOOT_DEVICE_ETHERNET;
case BACKUP_BOOT_DEVICE_MMC2:
{
u32 port = (main_devstat & MAIN_DEVSTAT_BKUP_MMC_PORT_MASK) >>
MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT;
if (port == 0x0)
return BOOT_DEVICE_MMC1;
return BOOT_DEVICE_MMC2;
}
case BACKUP_BOOT_DEVICE_SPI:
return BOOT_DEVICE_SPI;
case BACKUP_BOOT_DEVICE_I2C:
return BOOT_DEVICE_I2C;
}
return BOOT_DEVICE_RAM;
}
static u32 __get_primary_bootmedia(u32 main_devstat, u32 wkup_devstat)
{
u32 bootmode = (wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT;
bootmode |= (main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) <<
BOOT_MODE_B_SHIFT;
if (bootmode == BOOT_DEVICE_OSPI || bootmode == BOOT_DEVICE_QSPI ||
bootmode == BOOT_DEVICE_XSPI)
bootmode = BOOT_DEVICE_SPI;
if (bootmode == BOOT_DEVICE_MMC2) {
u32 port = (main_devstat &
MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK) >>
MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT;
if (port == 0x0)
bootmode = BOOT_DEVICE_MMC1;
}
return bootmode;
}
u32 get_boot_device(void)
{
u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);
u32 main_devstat;
u32 bootindex = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
if (wkup_devstat & WKUP_DEVSTAT_MCU_ONLY_MASK) {
printf("ERROR: MCU only boot is not yet supported\n");
return BOOT_DEVICE_RAM;
}
/* MAIN CTRL MMR can only be read if MCU ONLY is 0 */
main_devstat = readl(CTRLMMR_MAIN_DEVSTAT);
if (bootindex == K3_PRIMARY_BOOTMODE)
return __get_primary_bootmedia(main_devstat, wkup_devstat);
else
return __get_backup_bootmedia(main_devstat);
}
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