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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2014 Gateworks Corporation
* Copyright (C) 2011-2012 Freescale Semiconductor, Inc.
*
* Author: Tim Harvey <tharvey@gateworks.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/sys_proto.h>
#include <asm/spl.h>
#include <spl.h>
#include <asm/mach-imx/hab.h>
#include <asm/mach-imx/boot_mode.h>
#include <g_dnl.h>
DECLARE_GLOBAL_DATA_PTR;
__weak int spl_board_boot_device(enum boot_device boot_dev_spl)
{
return 0;
}
#if defined(CONFIG_MX6)
/* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */
u32 spl_boot_device(void)
{
unsigned int bmode = readl(&src_base->sbmr2);
u32 reg = imx6_src_get_boot_mode();
u32 mmc_index = ((reg >> 11) & 0x03);
/*
* Check for BMODE if serial downloader is enabled
* BOOT_MODE - see IMX6DQRM Table 8-1
*/
if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
return BOOT_DEVICE_BOARD;
/*
* The above method does not detect that the boot ROM used
* serial downloader in case the boot ROM decided to use the
* serial downloader as a fall back (primary boot source failed).
*
* Infer that the boot ROM used the USB serial downloader by
* checking whether the USB PHY is currently active... This
* assumes that SPL did not (yet) initialize the USB PHY...
*/
if (is_usbotg_phy_active())
return BOOT_DEVICE_BOARD;
/* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */
switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) {
/* EIM: See 8.5.1, Table 8-9 */
case IMX6_BMODE_EMI:
/* BOOT_CFG1[3]: NOR/OneNAND Selection */
switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) {
case IMX6_BMODE_ONENAND:
return BOOT_DEVICE_ONENAND;
case IMX6_BMODE_NOR:
return BOOT_DEVICE_NOR;
break;
}
/* Reserved: Used to force Serial Downloader */
case IMX6_BMODE_RESERVED:
return BOOT_DEVICE_BOARD;
/* SATA: See 8.5.4, Table 8-20 */
#if !defined(CONFIG_MX6UL) && !defined(CONFIG_MX6ULL)
case IMX6_BMODE_SATA:
return BOOT_DEVICE_SATA;
#endif
/* Serial ROM: See 8.5.5.1, Table 8-22 */
case IMX6_BMODE_SERIAL_ROM:
/* BOOT_CFG4[2:0] */
switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >>
IMX6_BMODE_SERIAL_ROM_SHIFT) {
case IMX6_BMODE_ECSPI1:
case IMX6_BMODE_ECSPI2:
case IMX6_BMODE_ECSPI3:
case IMX6_BMODE_ECSPI4:
case IMX6_BMODE_ECSPI5:
return BOOT_DEVICE_SPI;
case IMX6_BMODE_I2C1:
case IMX6_BMODE_I2C2:
case IMX6_BMODE_I2C3:
return BOOT_DEVICE_I2C;
}
break;
/* SD/eSD: 8.5.3, Table 8-15 */
case IMX6_BMODE_SD:
case IMX6_BMODE_ESD:
case IMX6_BMODE_MMC:
case IMX6_BMODE_EMMC:
if (mmc_index == 1)
return BOOT_DEVICE_MMC2;
else
return BOOT_DEVICE_MMC1;
/* NAND Flash: 8.5.2, Table 8-10 */
case IMX6_BMODE_NAND_MIN ... IMX6_BMODE_NAND_MAX:
return BOOT_DEVICE_NAND;
#if defined(CONFIG_MX6UL) || defined(CONFIG_MX6ULL)
/* QSPI boot */
case IMX6_BMODE_QSPI:
return BOOT_DEVICE_SPI;
#endif
}
return BOOT_DEVICE_NONE;
}
#elif defined(CONFIG_MX7) || defined(CONFIG_IMX8M) || defined(CONFIG_IMX8)
/* Translate iMX7/i.MX8M boot device to the SPL boot device enumeration */
u32 spl_boot_device(void)
{
#if defined(CONFIG_MX7)
unsigned int bmode = readl(&src_base->sbmr2);
/*
* Check for BMODE if serial downloader is enabled
* BOOT_MODE - see IMX7DRM Table 6-24
*/
if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
return BOOT_DEVICE_BOARD;
/*
* The above method does not detect that the boot ROM used
* serial downloader in case the boot ROM decided to use the
* serial downloader as a fall back (primary boot source failed).
*
* Infer that the boot ROM used the USB serial downloader by
* checking whether the USB PHY is currently active... This
* assumes that SPL did not (yet) initialize the USB PHY...
*/
if (is_boot_from_usb())
return BOOT_DEVICE_BOARD;
#endif
enum boot_device boot_device_spl = get_boot_device();
if (IS_ENABLED(CONFIG_IMX8MM))
return spl_board_boot_device(boot_device_spl);
switch (boot_device_spl) {
#if defined(CONFIG_MX7)
case SD1_BOOT:
case MMC1_BOOT:
case SD2_BOOT:
case MMC2_BOOT:
case SD3_BOOT:
case MMC3_BOOT:
return BOOT_DEVICE_MMC1;
#elif defined(CONFIG_IMX8)
case MMC1_BOOT:
return BOOT_DEVICE_MMC1;
case SD2_BOOT:
return BOOT_DEVICE_MMC2_2;
case SD3_BOOT:
return BOOT_DEVICE_MMC1;
case FLEXSPI_BOOT:
return BOOT_DEVICE_SPI;
#elif defined(CONFIG_IMX8M)
case SD1_BOOT:
case MMC1_BOOT:
return BOOT_DEVICE_MMC1;
case SD2_BOOT:
case MMC2_BOOT:
return BOOT_DEVICE_MMC2;
#endif
case NAND_BOOT:
return BOOT_DEVICE_NAND;
case SPI_NOR_BOOT:
return BOOT_DEVICE_SPI;
case USB_BOOT:
return BOOT_DEVICE_USB;
default:
return BOOT_DEVICE_NONE;
}
}
#endif /* CONFIG_MX7 || CONFIG_IMX8M || CONFIG_IMX8 */
#ifdef CONFIG_SPL_USB_GADGET
int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
{
put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM + 0xfff, &dev->idProduct);
return 0;
}
#endif
#if defined(CONFIG_SPL_MMC_SUPPORT)
/* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */
u32 spl_boot_mode(const u32 boot_device)
{
/*
* When CONFIG_SPL_FORCE_MMC_BOOT is defined the 'boot_device' is used
* unconditionally to decide about device to use for booting.
* This is crucial for falcon boot mode, when board boots up (i.e. ROM
* loads SPL) from slow SPI-NOR memory and afterwards the SPL's 'falcon' boot
* mode is used to load Linux OS from eMMC partition.
*/
#ifdef CONFIG_SPL_FORCE_MMC_BOOT
switch (boot_device) {
#else
switch (spl_boot_device()) {
#endif
/* for MMC return either RAW or FAT mode */
case BOOT_DEVICE_MMC1:
case BOOT_DEVICE_MMC2:
case BOOT_DEVICE_MMC2_2:
#if defined(CONFIG_SPL_FS_FAT)
return MMCSD_MODE_FS;
#elif defined(CONFIG_SUPPORT_EMMC_BOOT)
return MMCSD_MODE_EMMCBOOT;
#else
return MMCSD_MODE_RAW;
#endif
break;
default:
puts("spl: ERROR: unsupported device\n");
hang();
}
}
#endif
#if defined(CONFIG_SECURE_BOOT)
/*
* +------------+ 0x0 (DDR_UIMAGE_START) -
* | Header | |
* +------------+ 0x40 |
* | | |
* | | |
* | | |
* | | |
* | Image Data | |
* . | |
* . | > Stuff to be authenticated ----+
* . | | |
* | | | |
* | | | |
* +------------+ | |
* | | | |
* | Fill Data | | |
* | | | |
* +------------+ Align to ALIGN_SIZE | |
* | IVT | | |
* +------------+ + IVT_SIZE - |
* | | |
* | CSF DATA | <---------------------------------------------------------+
* | |
* +------------+
* | |
* | Fill Data |
* | |
* +------------+ + CSF_PAD_SIZE
*/
__weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
{
typedef void __noreturn (*image_entry_noargs_t)(void);
uint32_t offset;
image_entry_noargs_t image_entry =
(image_entry_noargs_t)(unsigned long)spl_image->entry_point;
debug("image entry point: 0x%lX\n", spl_image->entry_point);
if (spl_image->flags & SPL_FIT_FOUND) {
image_entry();
} else {
/*
* HAB looks for the CSF at the end of the authenticated
* data therefore, we need to subtract the size of the
* CSF from the actual filesize
*/
offset = spl_image->size - CONFIG_CSF_SIZE;
if (!imx_hab_authenticate_image(spl_image->load_addr,
offset + IVT_SIZE +
CSF_PAD_SIZE, offset)) {
image_entry();
} else {
puts("spl: ERROR: image authentication fail\n");
hang();
}
}
}
#if !defined(CONFIG_SPL_FIT_SIGNATURE)
ulong board_spl_fit_size_align(ulong size)
{
/*
* HAB authenticate_image requests the IVT offset is
* aligned to 0x1000
*/
size = ALIGN(size, 0x1000);
size += CONFIG_CSF_SIZE;
return size;
}
void board_spl_fit_post_load(ulong load_addr, size_t length)
{
u32 offset = length - CONFIG_CSF_SIZE;
if (imx_hab_authenticate_image(load_addr,
offset + IVT_SIZE + CSF_PAD_SIZE,
offset)) {
puts("spl: ERROR: image authentication unsuccessful\n");
hang();
}
}
#endif
#endif
#if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT)
int dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
gd->bd->bi_dram[0].size = imx_ddr_size();
return 0;
}
#endif
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