SPL checks for a magic word in the system manager's scratch register to determine if an L2 reset has occurred. If detected, SPL places all slave CPUs (CPU1–3) into WFI mode. The master CPU (CPU0) then initiates a warm reset by writing to the RMR_EL3 system register and also enters WFI mode. This warm reset flow is handled entirely within the HPS. The function `socfpga_sysreset_request()` triggers the warm reset, and upon SPL re-entry, the updated `lowlevel_init_soc64.S` handles the necessary initialization. Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
305 lines
9.5 KiB
C
305 lines
9.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* Copyright (C) 2017-2024 Intel Corporation <www.intel.com>
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* Copyright (C) 2025 Altera Corporation <www.altera.com>
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*
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*/
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#ifndef __CONFIG_SOCFPGA_SOC64_COMMON_H__
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#define __CONFIG_SOCFPGA_SOC64_COMMON_H__
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#include <asm/arch/base_addr_soc64.h>
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#include <asm/arch/handoff_soc64.h>
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#include <linux/stringify.h>
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/*
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* U-Boot general configurations
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*/
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/* sysmgr.boot_scratch_cold4 & 5 (64bit) will be used for PSCI_CPU_ON call */
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#define CPU_RELEASE_ADDR 0xFFD12210
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/*
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* Share sysmgr.boot_scratch_cold6 & 7 (64bit) with VBAR_LE3_BASE_ADDR
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* Indicate L2 reset is done. HPS should trigger warm reset via RMR_EL3.
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*/
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#define L2_RESET_DONE_REG 0xFFD12218
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/* sysmgr.boot_scratch_cold8 bit 17 (1bit) will be used to check whether CPU0
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* is being powered off/on from kernel
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*/
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#define BOOT_SCRATCH_COLD8 0xFFD12220
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/* Magic word to indicate L2 reset is completed */
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#define L2_RESET_DONE_STATUS 0x1228E5E7
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/*
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* U-Boot console configurations
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*/
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/* Extend size of kernel image for uncompression */
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/*
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* U-Boot run time memory configurations
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*/
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#if IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX5)
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#define CFG_SYS_INIT_RAM_ADDR 0x0
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#define CFG_SYS_INIT_RAM_SIZE 0x80000
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#else
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#define CFG_SYS_INIT_RAM_ADDR 0xFFE00000
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#define CFG_SYS_INIT_RAM_SIZE 0x40000
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#endif
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/*
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* U-Boot environment configurations
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*/
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#define CFG_SYS_NAND_U_BOOT_SIZE (1 * 1024 * 1024)
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#define CFG_SYS_NAND_U_BOOT_DST CONFIG_TEXT_BASE
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/*
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* Environment variable
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*/
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#if IS_ENABLED(CONFIG_DISTRO_DEFAULTS)
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#if IS_ENABLED(CONFIG_CMD_MMC)
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#define BOOT_TARGET_DEVICES_MMC(func) func(MMC, mmc, 0)
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#else
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#define BOOT_TARGET_DEVICES_MMC(func)
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#endif
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#if IS_ENABLED(CONFIG_CMD_SF)
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#define BOOT_TARGET_DEVICES_QSPI(func) func(QSPI, qspi, na)
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#else
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#define BOOT_TARGET_DEVICES_QSPI(func)
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#endif
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#define BOOTENV_DEV_QSPI(devtypeu, devtypel, instance) \
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"bootcmd_qspi=ubi detach; sf probe && " \
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"setenv mtdids 'nor0=nor0,nand0=nand.0' && " \
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"setenv mtdparts 'mtdparts=nor0:66m(u-boot),190m(root); " \
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"nand.0:2m(nand_uboot),500m(nand_root)' && " \
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"env select UBI; saveenv && " \
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"ubi part root && " \
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"if ubi part root && ubi readvol ${scriptaddr} script; " \
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"then echo QSPI: Running script from UBIFS; " \
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"elif sf read ${scriptaddr} ${qspiscriptaddr} ${scriptsize}; " \
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"then echo QSPI: Running script from JFFS2; fi; " \
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"echo QSPI: Trying to boot script at ${scriptaddr} && " \
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"source ${scriptaddr}; " \
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"echo QSPI: SCRIPT FAILED: continuing...; ubi detach;\0"
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#define BOOTENV_DEV_NAME_QSPI(devtypeu, devtypel, instance) \
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"qspi "
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#if IS_ENABLED(CONFIG_CMD_NAND)
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#define BOOT_TARGET_DEVICES_NAND(func) func(NAND, nand, na)
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#else
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#define BOOT_TARGET_DEVICES_NAND(func)
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#endif
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#define BOOTENV_DEV_NAND(devtypeu, devtypel, instance) \
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"bootcmd_nand=ubi detach && " \
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"setenv mtdids 'nor0=nor0,nand0=nand.0' && " \
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"setenv mtdparts 'mtdparts=nor0:66m(qspi_uboot),190m(qspi_root);" \
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"nand.0:2m(u-boot),500m(root)' && " \
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"env select UBI; saveenv && " \
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"ubi part root && " \
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"ubi readvol ${scriptaddr} script && " \
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"echo NAND: Trying to boot script at ${scriptaddr} && " \
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"source ${scriptaddr}; " \
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"echo NAND: SCRIPT FAILED: continuing...; ubi detach;\0"
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#define BOOTENV_DEV_NAME_NAND(devtypeu, devtypel, instance) \
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"nand "
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#define BOOT_TARGET_DEVICES(func) \
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BOOT_TARGET_DEVICES_MMC(func) \
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BOOT_TARGET_DEVICES_QSPI(func) \
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BOOT_TARGET_DEVICES_NAND(func)
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#include <config_distro_bootcmd.h>
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#if IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX5)
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#define CFG_EXTRA_ENV_SETTINGS \
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"kernel_addr_r=0x82000000\0" \
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"fdt_addr_r=0x86000000\0" \
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"qspiscriptaddr=0x02110000\0" \
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"scriptsize=0x00010000\0" \
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"qspibootimageaddr=0x02120000\0" \
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"bootimagesize=0x03200000\0" \
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"loadaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
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"bootfile=" CONFIG_BOOTFILE "\0" \
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"mmcroot=/dev/mmcblk0p2\0" \
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"mtdids=" CONFIG_MTDIDS_DEFAULT "\0" \
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"mtdparts=" CONFIG_MTDPARTS_DEFAULT "\0" \
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"linux_qspi_enable=if sf probe; then " \
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"echo Enabling QSPI at Linux DTB...;" \
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"fdt addr ${fdt_addr}; fdt resize;" \
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"fdt set /soc/spi@108d2000 status okay;" \
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"if fdt set /clocks/qspi-clk clock-frequency" \
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" ${qspi_clock}; then echo QSPI clock frequency updated;" \
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" elif fdt set /soc/clkmgr/clocks/qspi_clk clock-frequency" \
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" ${qspi_clock}; then echo QSPI clock frequency updated;" \
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" else fdt set /clocks/qspi-clk clock-frequency" \
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" ${qspi_clock}; echo QSPI clock frequency updated; fi; fi\0" \
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"scriptaddr=0x81000000\0" \
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"scriptfile=boot.scr\0" \
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"socfpga_legacy_reset_compat=1\0" \
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"smc_fid_rd=0xC2000007\0" \
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"smc_fid_wr=0xC2000008\0" \
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"smc_fid_upd=0xC2000009\0 " \
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BOOTENV
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#else
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#define CFG_EXTRA_ENV_SETTINGS \
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"kernel_addr_r=0x2000000\0" \
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"fdt_addr_r=0x6000000\0" \
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"qspiscriptaddr=0x02110000\0" \
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"scriptsize=0x00010000\0" \
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"qspibootimageaddr=0x02120000\0" \
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"bootimagesize=0x03200000\0" \
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"loadaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
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"bootfile=" CONFIG_BOOTFILE "\0" \
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"mmcroot=/dev/mmcblk0p2\0" \
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"mtdids=" CONFIG_MTDIDS_DEFAULT "\0" \
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"mtdparts=" CONFIG_MTDPARTS_DEFAULT "\0" \
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"linux_qspi_enable=if sf probe; then " \
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"echo Enabling QSPI at Linux DTB...;" \
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"fdt addr ${fdt_addr}; fdt resize;" \
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"fdt set /soc/spi@ff8d2000 status okay;" \
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"if fdt set /soc/clocks/qspi-clk clock-frequency" \
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" ${qspi_clock}; then echo QSPI clock frequency updated;" \
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" elif fdt set /soc/clkmgr/clocks/qspi_clk clock-frequency" \
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" ${qspi_clock}; then echo QSPI clock frequency updated;" \
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" else fdt set /clocks/qspi-clk clock-frequency" \
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" ${qspi_clock}; echo QSPI clock frequency updated; fi; fi\0" \
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"scriptaddr=0x05FF0000\0" \
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"scriptfile=boot.scr\0" \
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"nandroot=ubi0:rootfs\0" \
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"socfpga_legacy_reset_compat=1\0" \
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"smc_fid_rd=0xC2000007\0" \
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"smc_fid_wr=0xC2000008\0" \
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"smc_fid_upd=0xC2000009\0 " \
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BOOTENV
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#endif /*#IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX5)*/
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#else
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#define CFG_EXTRA_ENV_SETTINGS \
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"kernel_comp_addr_r=0x9000000\0" \
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"kernel_comp_size=0x01000000\0" \
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"qspibootimageaddr=0x020E0000\0" \
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"qspifdtaddr=0x020D0000\0" \
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"bootimagesize=0x01F00000\0" \
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"fdtimagesize=0x00010000\0" \
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"qspiload=sf read ${loadaddr} ${qspibootimageaddr} ${bootimagesize};" \
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"sf read ${fdt_addr} ${qspifdtaddr} ${fdtimagesize}\0" \
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"qspiboot=setenv bootargs earlycon root=/dev/mtdblock1 rw " \
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"rootfstype=jffs2 rootwait;booti ${loadaddr} - ${fdt_addr}\0" \
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"qspifitload=sf read ${loadaddr} ${qspibootimageaddr} ${bootimagesize}\0" \
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"qspifitboot=setenv bootargs earlycon root=/dev/mtdblock1 rw " \
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"rootfstype=jffs2 rootwait;bootm ${loadaddr}\0" \
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"loadaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
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"bootfile=" CONFIG_BOOTFILE "\0" \
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"fdt_addr=8000000\0" \
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"fdtimage=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
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"mmcroot=/dev/mmcblk0p2\0" \
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"mmcboot=setenv bootargs " CONFIG_BOOTARGS \
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" root=${mmcroot} rw rootwait;" \
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"booti ${loadaddr} - ${fdt_addr}\0" \
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"mmcload=mmc rescan;" \
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"load mmc 0:1 ${loadaddr} ${bootfile};" \
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"load mmc 0:1 ${fdt_addr} ${fdtimage}\0" \
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"mmcfitboot=setenv bootargs " CONFIG_BOOTARGS \
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" root=${mmcroot} rw rootwait;" \
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"bootm ${loadaddr}\0" \
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"mmcfitload=mmc rescan;" \
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"load mmc 0:1 ${loadaddr} ${bootfile}\0" \
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"mtdids=" CONFIG_MTDIDS_DEFAULT "\0" \
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"mtdparts=" CONFIG_MTDPARTS_DEFAULT "\0" \
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"linux_qspi_enable=if sf probe; then " \
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"echo Enabling QSPI at Linux DTB...;" \
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"fdt addr ${fdt_addr}; fdt resize;" \
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"fdt set /soc/spi@ff8d2000 status okay;" \
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"if fdt set /soc/clocks/qspi-clk clock-frequency" \
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" ${qspi_clock}; then echo QSPI clock frequency updated;" \
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" elif fdt set /soc/clkmgr/clocks/qspi_clk clock-frequency" \
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" ${qspi_clock}; then echo QSPI clock frequency updated;" \
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" else fdt set /clocks/qspi-clk clock-frequency" \
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" ${qspi_clock}; echo QSPI clock frequency updated; fi; fi\0" \
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"scriptaddr=0x02100000\0" \
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"scriptfile=u-boot.scr\0" \
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"fatscript=if fatload mmc 0:1 ${scriptaddr} ${scriptfile};" \
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"then source ${scriptaddr}:script; fi\0" \
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"nandfitboot=setenv bootargs " CONFIG_BOOTARGS \
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" root=${nandroot} rw rootwait rootfstype=ubifs ubi.mtd=1; " \
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"bootm ${loadaddr}\0" \
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"nandfitload=ubi part root; ubi readvol ${loadaddr} kernel\0" \
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"socfpga_legacy_reset_compat=1\0" \
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"smc_fid_rd=0xC2000007\0" \
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"smc_fid_wr=0xC2000008\0" \
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"smc_fid_upd=0xC2000009\0 "
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#endif /*#if IS_ENABLED(CONFIG_DISTRO_DEFAULTS)*/
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/*
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* External memory configurations
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*/
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#if IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX5)
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#define PHYS_SDRAM_1 0x80000000
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#define PHYS_SDRAM_1_SIZE (1 * 1024 * 1024 * 1024)
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#define CFG_SYS_SDRAM_BASE 0x80000000
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#else
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#define PHYS_SDRAM_1 0x0
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#define PHYS_SDRAM_1_SIZE (1 * 1024 * 1024 * 1024)
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#define CFG_SYS_SDRAM_BASE 0
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#endif
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/*
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* Serial / UART configurations
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*/
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#define CFG_SYS_NS16550_CLK 100000000
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/*
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* SDMMC configurations
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*/
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/*
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* Flash configurations
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*/
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/*
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* L4 Watchdog
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*/
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#ifdef CONFIG_TARGET_SOCFPGA_STRATIX10
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#ifndef __ASSEMBLY__
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unsigned int cm_get_l4_sys_free_clk_hz(void);
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#define CFG_DW_WDT_CLOCK_KHZ (cm_get_l4_sys_free_clk_hz() / 1000)
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#endif
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#else
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#define CFG_DW_WDT_CLOCK_KHZ 100000
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#endif
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/*
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* SPL memory layout
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*
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* On chip RAM
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* 0xFFE0_0000 ...... Start of OCRAM
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* SPL code, rwdata
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* empty space
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* 0xFFEx_xxxx ...... Top of stack (grows down)
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* 0xFFEy_yyyy ...... Global Data
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* 0xFFEz_zzzz ...... Malloc prior relocation (size CONFIG_SYS_MALLOC_F_LEN)
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* 0xFFE3_F000 ...... Hardware handdoff blob (size 4KB)
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* 0xFFE3_FFFF ...... End of OCRAM
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*
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* SDRAM
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* 0x0000_0000 ...... Start of SDRAM_1
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* unused / empty space for image loading
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* Size 64MB ...... MALLOC (size CONFIG_SPL_SYS_MALLOC_SIZE)
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* Size 1MB ...... BSS (size CONFIG_SPL_BSS_MAX_SIZE)
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* 0x8000_0000 ...... End of SDRAM_1 (assume 2GB)
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*
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*/
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#endif /* __CONFIG_SOCFPGA_SOC64_COMMON_H__ */
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