340 lines
8.8 KiB
C
340 lines
8.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* AM6: SoC specific initialization
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*
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* Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
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* Lokesh Vutla <lokeshvutla@ti.com>
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*/
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#include <common.h>
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#include <init.h>
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#include <asm/io.h>
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#include <spl.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/sysfw-loader.h>
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#include <asm/arch/sys_proto.h>
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#include "common.h"
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#include <dm.h>
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#include <dm/uclass-internal.h>
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#include <dm/pinctrl.h>
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#include <linux/soc/ti/ti_sci_protocol.h>
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#include <mmc.h>
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#ifdef CONFIG_SPL_BUILD
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#ifdef CONFIG_K3_LOAD_SYSFW
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#ifdef CONFIG_TI_SECURE_DEVICE
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struct fwl_data main_cbass_fwls[] = {
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{ "MMCSD1_CFG", 2057, 1 },
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{ "MMCSD0_CFG", 2058, 1 },
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{ "USB3SS0_SLV0", 2176, 2 },
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{ "PCIE0_SLV", 2336, 8 },
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{ "PCIE1_SLV", 2337, 8 },
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{ "PCIE0_CFG", 2688, 1 },
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{ "PCIE1_CFG", 2689, 1 },
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}, mcu_cbass_fwls[] = {
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{ "MCU_ARMSS0_CORE0_SLV", 1024, 1 },
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{ "MCU_ARMSS0_CORE1_SLV", 1028, 1 },
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{ "MCU_FSS0_S1", 1033, 8 },
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{ "MCU_FSS0_S0", 1036, 8 },
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{ "MCU_CPSW0", 1220, 1 },
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};
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#endif
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#endif
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static void mmr_unlock(u32 base, u32 partition)
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{
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/* Translate the base address */
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phys_addr_t part_base = base + partition * CTRL_MMR0_PARTITION_SIZE;
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/* Unlock the requested partition if locked using two-step sequence */
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writel(CTRLMMR_LOCK_KICK0_UNLOCK_VAL, part_base + CTRLMMR_LOCK_KICK0);
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writel(CTRLMMR_LOCK_KICK1_UNLOCK_VAL, part_base + CTRLMMR_LOCK_KICK1);
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}
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static void ctrl_mmr_unlock(void)
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{
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/* Unlock all WKUP_CTRL_MMR0 module registers */
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mmr_unlock(WKUP_CTRL_MMR0_BASE, 0);
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mmr_unlock(WKUP_CTRL_MMR0_BASE, 1);
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mmr_unlock(WKUP_CTRL_MMR0_BASE, 2);
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mmr_unlock(WKUP_CTRL_MMR0_BASE, 3);
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mmr_unlock(WKUP_CTRL_MMR0_BASE, 6);
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mmr_unlock(WKUP_CTRL_MMR0_BASE, 7);
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/* Unlock all MCU_CTRL_MMR0 module registers */
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mmr_unlock(MCU_CTRL_MMR0_BASE, 0);
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mmr_unlock(MCU_CTRL_MMR0_BASE, 1);
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mmr_unlock(MCU_CTRL_MMR0_BASE, 2);
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mmr_unlock(MCU_CTRL_MMR0_BASE, 6);
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/* Unlock all CTRL_MMR0 module registers */
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mmr_unlock(CTRL_MMR0_BASE, 0);
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mmr_unlock(CTRL_MMR0_BASE, 1);
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mmr_unlock(CTRL_MMR0_BASE, 2);
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mmr_unlock(CTRL_MMR0_BASE, 3);
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mmr_unlock(CTRL_MMR0_BASE, 6);
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mmr_unlock(CTRL_MMR0_BASE, 7);
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}
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/*
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* This uninitialized global variable would normal end up in the .bss section,
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* but the .bss is cleared between writing and reading this variable, so move
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* it to the .data section.
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*/
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u32 bootindex __attribute__((section(".data")));
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static void store_boot_index_from_rom(void)
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{
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bootindex = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
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}
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#if defined(CONFIG_K3_LOAD_SYSFW)
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void k3_mmc_stop_clock(void)
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{
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if (spl_boot_device() == BOOT_DEVICE_MMC1) {
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struct mmc *mmc = find_mmc_device(0);
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if (!mmc)
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return;
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mmc->saved_clock = mmc->clock;
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mmc_set_clock(mmc, 0, true);
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}
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}
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void k3_mmc_restart_clock(void)
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{
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if (spl_boot_device() == BOOT_DEVICE_MMC1) {
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struct mmc *mmc = find_mmc_device(0);
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if (!mmc)
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return;
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mmc_set_clock(mmc, mmc->saved_clock, false);
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}
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}
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#endif
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void board_init_f(ulong dummy)
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{
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#if defined(CONFIG_K3_LOAD_SYSFW) || defined(CONFIG_K3_AM654_DDRSS)
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struct udevice *dev;
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int ret;
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#endif
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/*
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* Cannot delay this further as there is a chance that
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* K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
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*/
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store_boot_index_from_rom();
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/* Make all control module registers accessible */
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ctrl_mmr_unlock();
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#ifdef CONFIG_CPU_V7R
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disable_linefill_optimization();
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setup_k3_mpu_regions();
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#endif
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/* Init DM early in-order to invoke system controller */
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spl_early_init();
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#ifdef CONFIG_K3_EARLY_CONS
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/*
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* Allow establishing an early console as required for example when
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* doing a UART-based boot. Note that this console may not "survive"
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* through a SYSFW PM-init step and will need a re-init in some way
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* due to changing module clock frequencies.
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*/
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early_console_init();
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#endif
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#ifdef CONFIG_K3_LOAD_SYSFW
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/*
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* Process pinctrl for the serial0 a.k.a. WKUP_UART0 module and continue
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* regardless of the result of pinctrl. Do this without probing the
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* device, but instead by searching the device that would request the
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* given sequence number if probed. The UART will be used by the system
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* firmware (SYSFW) image for various purposes and SYSFW depends on us
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* to initialize its pin settings.
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*/
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ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, true, &dev);
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if (!ret)
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pinctrl_select_state(dev, "default");
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/*
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* Load, start up, and configure system controller firmware while
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* also populating the SYSFW post-PM configuration callback hook.
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*/
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k3_sysfw_loader(k3_mmc_stop_clock, k3_mmc_restart_clock);
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/* Prepare console output */
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preloader_console_init();
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/* Disable ROM configured firewalls right after loading sysfw */
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#ifdef CONFIG_TI_SECURE_DEVICE
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remove_fwl_configs(main_cbass_fwls, ARRAY_SIZE(main_cbass_fwls));
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remove_fwl_configs(mcu_cbass_fwls, ARRAY_SIZE(mcu_cbass_fwls));
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#endif
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#else
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/* Prepare console output */
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preloader_console_init();
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#endif
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/* Output System Firmware version info */
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k3_sysfw_print_ver();
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/* Perform EEPROM-based board detection */
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do_board_detect();
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#if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0)
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ret = uclass_get_device_by_driver(UCLASS_MISC, DM_GET_DRIVER(k3_avs),
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&dev);
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if (ret)
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printf("AVS init failed: %d\n", ret);
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#endif
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#ifdef CONFIG_K3_AM654_DDRSS
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ret = uclass_get_device(UCLASS_RAM, 0, &dev);
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if (ret)
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panic("DRAM init failed: %d\n", ret);
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#endif
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}
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u32 spl_mmc_boot_mode(const u32 boot_device)
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{
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#if defined(CONFIG_SUPPORT_EMMC_BOOT)
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u32 devstat = readl(CTRLMMR_MAIN_DEVSTAT);
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u32 bootmode = (devstat & CTRLMMR_MAIN_DEVSTAT_BOOTMODE_MASK) >>
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CTRLMMR_MAIN_DEVSTAT_BOOTMODE_SHIFT;
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/* eMMC boot0 mode is only supported for primary boot */
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if (bootindex == K3_PRIMARY_BOOTMODE &&
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bootmode == BOOT_DEVICE_MMC1)
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return MMCSD_MODE_EMMCBOOT;
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#endif
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/* Everything else use filesystem if available */
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#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
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return MMCSD_MODE_FS;
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#else
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return MMCSD_MODE_RAW;
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#endif
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}
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static u32 __get_backup_bootmedia(u32 devstat)
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{
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u32 bkup_boot = (devstat & CTRLMMR_MAIN_DEVSTAT_BKUP_BOOTMODE_MASK) >>
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CTRLMMR_MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT;
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switch (bkup_boot) {
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case BACKUP_BOOT_DEVICE_USB:
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return BOOT_DEVICE_USB;
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case BACKUP_BOOT_DEVICE_UART:
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return BOOT_DEVICE_UART;
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case BACKUP_BOOT_DEVICE_ETHERNET:
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return BOOT_DEVICE_ETHERNET;
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case BACKUP_BOOT_DEVICE_MMC2:
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{
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u32 port = (devstat & CTRLMMR_MAIN_DEVSTAT_BKUP_MMC_PORT_MASK) >>
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CTRLMMR_MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT;
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if (port == 0x0)
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return BOOT_DEVICE_MMC1;
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return BOOT_DEVICE_MMC2;
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}
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case BACKUP_BOOT_DEVICE_SPI:
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return BOOT_DEVICE_SPI;
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case BACKUP_BOOT_DEVICE_HYPERFLASH:
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return BOOT_DEVICE_HYPERFLASH;
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case BACKUP_BOOT_DEVICE_I2C:
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return BOOT_DEVICE_I2C;
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};
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return BOOT_DEVICE_RAM;
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}
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static u32 __get_primary_bootmedia(u32 devstat)
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{
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u32 bootmode = (devstat & CTRLMMR_MAIN_DEVSTAT_BOOTMODE_MASK) >>
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CTRLMMR_MAIN_DEVSTAT_BOOTMODE_SHIFT;
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if (bootmode == BOOT_DEVICE_OSPI || bootmode == BOOT_DEVICE_QSPI)
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bootmode = BOOT_DEVICE_SPI;
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if (bootmode == BOOT_DEVICE_MMC2) {
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u32 port = (devstat & CTRLMMR_MAIN_DEVSTAT_MMC_PORT_MASK) >>
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CTRLMMR_MAIN_DEVSTAT_MMC_PORT_SHIFT;
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if (port == 0x0)
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bootmode = BOOT_DEVICE_MMC1;
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} else if (bootmode == BOOT_DEVICE_MMC1) {
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u32 port = (devstat & CTRLMMR_MAIN_DEVSTAT_EMMC_PORT_MASK) >>
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CTRLMMR_MAIN_DEVSTAT_EMMC_PORT_SHIFT;
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if (port == 0x1)
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bootmode = BOOT_DEVICE_MMC2;
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}
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return bootmode;
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}
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u32 spl_boot_device(void)
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{
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u32 devstat = readl(CTRLMMR_MAIN_DEVSTAT);
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if (bootindex == K3_PRIMARY_BOOTMODE)
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return __get_primary_bootmedia(devstat);
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else
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return __get_backup_bootmedia(devstat);
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}
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#endif
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#ifdef CONFIG_SYS_K3_SPL_ATF
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#define AM6_DEV_MCU_RTI0 134
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#define AM6_DEV_MCU_RTI1 135
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#define AM6_DEV_MCU_ARMSS0_CPU0 159
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#define AM6_DEV_MCU_ARMSS0_CPU1 245
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void release_resources_for_core_shutdown(void)
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{
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struct ti_sci_handle *ti_sci = get_ti_sci_handle();
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struct ti_sci_dev_ops *dev_ops = &ti_sci->ops.dev_ops;
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struct ti_sci_proc_ops *proc_ops = &ti_sci->ops.proc_ops;
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int ret;
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u32 i;
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const u32 put_device_ids[] = {
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AM6_DEV_MCU_RTI0,
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AM6_DEV_MCU_RTI1,
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};
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/* Iterate through list of devices to put (shutdown) */
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for (i = 0; i < ARRAY_SIZE(put_device_ids); i++) {
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u32 id = put_device_ids[i];
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ret = dev_ops->put_device(ti_sci, id);
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if (ret)
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panic("Failed to put device %u (%d)\n", id, ret);
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}
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const u32 put_core_ids[] = {
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AM6_DEV_MCU_ARMSS0_CPU1,
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AM6_DEV_MCU_ARMSS0_CPU0, /* Handle CPU0 after CPU1 */
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};
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/* Iterate through list of cores to put (shutdown) */
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for (i = 0; i < ARRAY_SIZE(put_core_ids); i++) {
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u32 id = put_core_ids[i];
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/*
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* Queue up the core shutdown request. Note that this call
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* needs to be followed up by an actual invocation of an WFE
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* or WFI CPU instruction.
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*/
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ret = proc_ops->proc_shutdown_no_wait(ti_sci, id);
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if (ret)
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panic("Failed sending core %u shutdown message (%d)\n",
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id, ret);
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}
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}
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#endif
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