mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-13 23:02:59 +00:00
c0c56f64b3
Makes it possible to use e.g mcu_spi0 for custom board detection. Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Reviewed-by: Bryan Brattlof <bb@ti.com>
346 lines
8.1 KiB
C
346 lines
8.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* AM642: SoC specific initialization
|
|
*
|
|
* Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
|
|
* Keerthy <j-keerthy@ti.com>
|
|
* Dave Gerlach <d-gerlach@ti.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <fdt_support.h>
|
|
#include <spl.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include "sysfw-loader.h"
|
|
#include "common.h"
|
|
#include <linux/soc/ti/ti_sci_protocol.h>
|
|
#include <dm.h>
|
|
#include <dm/uclass-internal.h>
|
|
#include <dm/pinctrl.h>
|
|
#include <mmc.h>
|
|
#include <dm/root.h>
|
|
|
|
#define CTRLMMR_MCU_RST_CTRL 0x04518170
|
|
|
|
static void ctrl_mmr_unlock(void)
|
|
{
|
|
/* Unlock all PADCFG_MMR1 module registers */
|
|
mmr_unlock(PADCFG_MMR1_BASE, 1);
|
|
|
|
/* Unlock all MCU_CTRL_MMR0 module registers */
|
|
mmr_unlock(MCU_CTRL_MMR0_BASE, 0);
|
|
mmr_unlock(MCU_CTRL_MMR0_BASE, 1);
|
|
mmr_unlock(MCU_CTRL_MMR0_BASE, 2);
|
|
mmr_unlock(MCU_CTRL_MMR0_BASE, 3);
|
|
mmr_unlock(MCU_CTRL_MMR0_BASE, 4);
|
|
mmr_unlock(MCU_CTRL_MMR0_BASE, 6);
|
|
|
|
/* Unlock all CTRL_MMR0 module registers */
|
|
mmr_unlock(CTRL_MMR0_BASE, 0);
|
|
mmr_unlock(CTRL_MMR0_BASE, 1);
|
|
mmr_unlock(CTRL_MMR0_BASE, 2);
|
|
mmr_unlock(CTRL_MMR0_BASE, 3);
|
|
mmr_unlock(CTRL_MMR0_BASE, 5);
|
|
mmr_unlock(CTRL_MMR0_BASE, 6);
|
|
|
|
/* Unlock all MCU_PADCFG_MMR1 module registers */
|
|
mmr_unlock(MCU_PADCFG_MMR1_BASE, 1);
|
|
}
|
|
|
|
/*
|
|
* This uninitialized global variable would normal end up in the .bss section,
|
|
* but the .bss is cleared between writing and reading this variable, so move
|
|
* it to the .data section.
|
|
*/
|
|
u32 bootindex __section(".data");
|
|
static struct rom_extended_boot_data bootdata __section(".data");
|
|
|
|
static void store_boot_info_from_rom(void)
|
|
{
|
|
bootindex = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
|
|
memcpy(&bootdata, (uintptr_t *)ROM_EXTENDED_BOOT_DATA_INFO,
|
|
sizeof(struct rom_extended_boot_data));
|
|
}
|
|
|
|
#if defined(CONFIG_K3_LOAD_SYSFW) && CONFIG_IS_ENABLED(DM_MMC)
|
|
void k3_mmc_stop_clock(void)
|
|
{
|
|
if (spl_boot_device() == BOOT_DEVICE_MMC1) {
|
|
struct mmc *mmc = find_mmc_device(0);
|
|
|
|
if (!mmc)
|
|
return;
|
|
|
|
mmc->saved_clock = mmc->clock;
|
|
mmc_set_clock(mmc, 0, true);
|
|
}
|
|
}
|
|
|
|
void k3_mmc_restart_clock(void)
|
|
{
|
|
if (spl_boot_device() == BOOT_DEVICE_MMC1) {
|
|
struct mmc *mmc = find_mmc_device(0);
|
|
|
|
if (!mmc)
|
|
return;
|
|
|
|
mmc_set_clock(mmc, mmc->saved_clock, false);
|
|
}
|
|
}
|
|
#else
|
|
void k3_mmc_stop_clock(void) {}
|
|
void k3_mmc_restart_clock(void) {}
|
|
#endif
|
|
|
|
#ifdef CONFIG_SPL_OF_LIST
|
|
void do_dt_magic(void)
|
|
{
|
|
int ret, rescan;
|
|
|
|
/* Perform board detection */
|
|
do_board_detect();
|
|
|
|
/*
|
|
* Board detection has been done.
|
|
* Let us see if another dtb wouldn't be a better match
|
|
* for our board
|
|
*/
|
|
if (IS_ENABLED(CONFIG_CPU_V7R)) {
|
|
ret = fdtdec_resetup(&rescan);
|
|
if (!ret && rescan) {
|
|
dm_uninit();
|
|
dm_init_and_scan(true);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if CONFIG_IS_ENABLED(USB_STORAGE)
|
|
static int fixup_usb_boot(const void *fdt_blob)
|
|
{
|
|
int ret = 0;
|
|
|
|
switch (spl_boot_device()) {
|
|
case BOOT_DEVICE_USB:
|
|
/*
|
|
* If the boot mode is host, fixup the dr_mode to host
|
|
* before cdns3 bind takes place
|
|
*/
|
|
ret = fdt_find_and_setprop((void *)fdt_blob,
|
|
"/bus@f4000/cdns-usb@f900000/usb@f400000",
|
|
"dr_mode", "host", 5, 0);
|
|
if (ret)
|
|
printf("%s: fdt_find_and_setprop() failed:%d\n",
|
|
__func__, ret);
|
|
fallthrough;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int fdtdec_board_setup(const void *fdt_blob)
|
|
{
|
|
/* Can use the pointer from the function parameters */
|
|
return fixup_usb_boot(fdt_blob);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_ESM_K3)
|
|
static void enable_mcu_esm_reset(void)
|
|
{
|
|
/* Set CTRLMMR_MCU_RST_CTRL:MCU_ESM_ERROR_RST_EN_Z to '0' (low active) */
|
|
u32 stat = readl(CTRLMMR_MCU_RST_CTRL);
|
|
|
|
stat &= 0xFFFDFFFF;
|
|
writel(stat, CTRLMMR_MCU_RST_CTRL);
|
|
}
|
|
#endif
|
|
|
|
void board_init_f(ulong dummy)
|
|
{
|
|
#if defined(CONFIG_K3_LOAD_SYSFW) || defined(CONFIG_K3_AM64_DDRSS) || defined(CONFIG_ESM_K3)
|
|
struct udevice *dev;
|
|
int ret;
|
|
#endif
|
|
|
|
#if defined(CONFIG_CPU_V7R)
|
|
setup_k3_mpu_regions();
|
|
#endif
|
|
|
|
/*
|
|
* Cannot delay this further as there is a chance that
|
|
* K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
|
|
*/
|
|
store_boot_info_from_rom();
|
|
|
|
ctrl_mmr_unlock();
|
|
|
|
/* Init DM early */
|
|
spl_early_init();
|
|
|
|
preloader_console_init();
|
|
|
|
#if defined(CONFIG_K3_LOAD_SYSFW)
|
|
/*
|
|
* Process pinctrl for serial3 a.k.a. MAIN UART1 module and continue
|
|
* regardless of the result of pinctrl. Do this without probing the
|
|
* device, but instead by searching the device that would request the
|
|
* given sequence number if probed. The UART will be used by the system
|
|
* firmware (SYSFW) image for various purposes and SYSFW depends on us
|
|
* to initialize its pin settings.
|
|
*/
|
|
ret = uclass_find_device_by_seq(UCLASS_SERIAL, 3, &dev);
|
|
if (!ret)
|
|
pinctrl_select_state(dev, "default");
|
|
|
|
/*
|
|
* Load, start up, and configure system controller firmware.
|
|
* This will determine whether or not ROM has already loaded
|
|
* system firmware and if so, will only perform needed config
|
|
* and not attempt to load firmware again.
|
|
*/
|
|
k3_sysfw_loader(is_rom_loaded_sysfw(&bootdata), k3_mmc_stop_clock,
|
|
k3_mmc_restart_clock);
|
|
#endif
|
|
|
|
/* Output System Firmware version info */
|
|
k3_sysfw_print_ver();
|
|
|
|
do_dt_magic();
|
|
|
|
#if defined(CONFIG_ESM_K3)
|
|
/* Probe/configure ESM0 */
|
|
ret = uclass_get_device_by_name(UCLASS_MISC, "esm@420000", &dev);
|
|
if (ret)
|
|
printf("esm main init failed: %d\n", ret);
|
|
|
|
/* Probe/configure MCUESM */
|
|
ret = uclass_get_device_by_name(UCLASS_MISC, "esm@4100000", &dev);
|
|
if (ret)
|
|
printf("esm mcu init failed: %d\n", ret);
|
|
|
|
enable_mcu_esm_reset();
|
|
#endif
|
|
|
|
#if defined(CONFIG_K3_AM64_DDRSS)
|
|
ret = uclass_get_device(UCLASS_RAM, 0, &dev);
|
|
if (ret)
|
|
panic("DRAM init failed: %d\n", ret);
|
|
#endif
|
|
if (IS_ENABLED(CONFIG_SPL_ETH) && IS_ENABLED(CONFIG_TI_AM65_CPSW_NUSS) &&
|
|
spl_boot_device() == BOOT_DEVICE_ETHERNET) {
|
|
struct udevice *cpswdev;
|
|
|
|
if (uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(am65_cpsw_nuss), &cpswdev))
|
|
printf("Failed to probe am65_cpsw_nuss driver\n");
|
|
}
|
|
}
|
|
|
|
u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device)
|
|
{
|
|
switch (boot_device) {
|
|
case BOOT_DEVICE_MMC1:
|
|
return MMCSD_MODE_EMMCBOOT;
|
|
|
|
case BOOT_DEVICE_MMC2:
|
|
return MMCSD_MODE_FS;
|
|
|
|
default:
|
|
return MMCSD_MODE_RAW;
|
|
}
|
|
}
|
|
|
|
static u32 __get_backup_bootmedia(u32 main_devstat)
|
|
{
|
|
u32 bkup_bootmode =
|
|
(main_devstat & MAIN_DEVSTAT_BACKUP_BOOTMODE_MASK) >>
|
|
MAIN_DEVSTAT_BACKUP_BOOTMODE_SHIFT;
|
|
u32 bkup_bootmode_cfg =
|
|
(main_devstat & MAIN_DEVSTAT_BACKUP_BOOTMODE_CFG_MASK) >>
|
|
MAIN_DEVSTAT_BACKUP_BOOTMODE_CFG_SHIFT;
|
|
|
|
switch (bkup_bootmode) {
|
|
case BACKUP_BOOT_DEVICE_UART:
|
|
return BOOT_DEVICE_UART;
|
|
|
|
case BACKUP_BOOT_DEVICE_DFU:
|
|
if (bkup_bootmode_cfg & MAIN_DEVSTAT_BACKUP_USB_MODE_MASK)
|
|
return BOOT_DEVICE_USB;
|
|
return BOOT_DEVICE_DFU;
|
|
|
|
|
|
case BACKUP_BOOT_DEVICE_ETHERNET:
|
|
return BOOT_DEVICE_ETHERNET;
|
|
|
|
case BACKUP_BOOT_DEVICE_MMC:
|
|
if (bkup_bootmode_cfg)
|
|
return BOOT_DEVICE_MMC2;
|
|
return BOOT_DEVICE_MMC1;
|
|
|
|
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 bootmode = (main_devstat & MAIN_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
|
|
MAIN_DEVSTAT_PRIMARY_BOOTMODE_SHIFT;
|
|
u32 bootmode_cfg =
|
|
(main_devstat & MAIN_DEVSTAT_PRIMARY_BOOTMODE_CFG_MASK) >>
|
|
MAIN_DEVSTAT_PRIMARY_BOOTMODE_CFG_SHIFT;
|
|
|
|
switch (bootmode) {
|
|
case BOOT_DEVICE_OSPI:
|
|
fallthrough;
|
|
case BOOT_DEVICE_QSPI:
|
|
fallthrough;
|
|
case BOOT_DEVICE_XSPI:
|
|
fallthrough;
|
|
case BOOT_DEVICE_SPI:
|
|
return BOOT_DEVICE_SPI;
|
|
|
|
case BOOT_DEVICE_ETHERNET_RGMII:
|
|
fallthrough;
|
|
case BOOT_DEVICE_ETHERNET_RMII:
|
|
return BOOT_DEVICE_ETHERNET;
|
|
|
|
case BOOT_DEVICE_EMMC:
|
|
return BOOT_DEVICE_MMC1;
|
|
|
|
case BOOT_DEVICE_MMC:
|
|
if ((bootmode_cfg & MAIN_DEVSTAT_PRIMARY_MMC_PORT_MASK) >>
|
|
MAIN_DEVSTAT_PRIMARY_MMC_PORT_SHIFT)
|
|
return BOOT_DEVICE_MMC2;
|
|
return BOOT_DEVICE_MMC1;
|
|
|
|
case BOOT_DEVICE_DFU:
|
|
if ((bootmode_cfg & MAIN_DEVSTAT_PRIMARY_USB_MODE_MASK) >>
|
|
MAIN_DEVSTAT_PRIMARY_USB_MODE_SHIFT)
|
|
return BOOT_DEVICE_USB;
|
|
return BOOT_DEVICE_DFU;
|
|
|
|
case BOOT_DEVICE_NOBOOT:
|
|
return BOOT_DEVICE_RAM;
|
|
}
|
|
|
|
return bootmode;
|
|
}
|
|
|
|
u32 spl_boot_device(void)
|
|
{
|
|
u32 devstat = readl(CTRLMMR_MAIN_DEVSTAT);
|
|
|
|
if (bootindex == K3_PRIMARY_BOOTMODE)
|
|
return __get_primary_bootmedia(devstat);
|
|
else
|
|
return __get_backup_bootmedia(devstat);
|
|
}
|