diff options
Diffstat (limited to 'roms/u-boot/board/xilinx/versal/board.c')
| -rw-r--r-- | roms/u-boot/board/xilinx/versal/board.c | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/roms/u-boot/board/xilinx/versal/board.c b/roms/u-boot/board/xilinx/versal/board.c new file mode 100644 index 000000000..6045eb2ba --- /dev/null +++ b/roms/u-boot/board/xilinx/versal/board.c @@ -0,0 +1,277 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2014 - 2018 Xilinx, Inc. + * Michal Simek <michal.simek@xilinx.com> + */ + +#include <common.h> +#include <cpu_func.h> +#include <env.h> +#include <fdtdec.h> +#include <init.h> +#include <env_internal.h> +#include <log.h> +#include <malloc.h> +#include <time.h> +#include <asm/cache.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> +#include <dm/device.h> +#include <dm/uclass.h> +#include <versalpl.h> +#include "../common/board.h" + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_FPGA_VERSALPL) +static xilinx_desc versalpl = XILINX_VERSAL_DESC; +#endif + +int board_init(void) +{ + printf("EL Level:\tEL%d\n", current_el()); + +#if defined(CONFIG_FPGA_VERSALPL) + fpga_init(); + fpga_add(fpga_xilinx, &versalpl); +#endif + + if (CONFIG_IS_ENABLED(DM_I2C) && CONFIG_IS_ENABLED(I2C_EEPROM)) + xilinx_read_eeprom(); + + return 0; +} + +int board_early_init_r(void) +{ + u32 val; + + if (current_el() != 3) + return 0; + + debug("iou_switch ctrl div0 %x\n", + readl(&crlapb_base->iou_switch_ctrl)); + + writel(IOU_SWITCH_CTRL_CLKACT_BIT | + (CONFIG_IOU_SWITCH_DIVISOR0 << IOU_SWITCH_CTRL_DIVISOR0_SHIFT), + &crlapb_base->iou_switch_ctrl); + + /* Global timer init - Program time stamp reference clk */ + val = readl(&crlapb_base->timestamp_ref_ctrl); + val |= CRL_APB_TIMESTAMP_REF_CTRL_CLKACT_BIT; + writel(val, &crlapb_base->timestamp_ref_ctrl); + + debug("ref ctrl 0x%x\n", + readl(&crlapb_base->timestamp_ref_ctrl)); + + /* Clear reset of timestamp reg */ + writel(0, &crlapb_base->rst_timestamp); + + /* + * Program freq register in System counter and + * enable system counter. + */ + writel(COUNTER_FREQUENCY, + &iou_scntr_secure->base_frequency_id_register); + + debug("counter val 0x%x\n", + readl(&iou_scntr_secure->base_frequency_id_register)); + + writel(IOU_SCNTRS_CONTROL_EN, + &iou_scntr_secure->counter_control_register); + + debug("scntrs control 0x%x\n", + readl(&iou_scntr_secure->counter_control_register)); + debug("timer 0x%llx\n", get_ticks()); + debug("timer 0x%llx\n", get_ticks()); + + return 0; +} + +static u8 versal_get_bootmode(void) +{ + u8 bootmode; + u32 reg = 0; + + reg = readl(&crp_base->boot_mode_usr); + + if (reg >> BOOT_MODE_ALT_SHIFT) + reg >>= BOOT_MODE_ALT_SHIFT; + + bootmode = reg & BOOT_MODES_MASK; + + return bootmode; +} + +int board_late_init(void) +{ + u8 bootmode; + struct udevice *dev; + int bootseq = -1; + int bootseq_len = 0; + int env_targets_len = 0; + const char *mode; + char *new_targets; + char *env_targets; + + if (!(gd->flags & GD_FLG_ENV_DEFAULT)) { + debug("Saved variables - Skipping\n"); + return 0; + } + + if (!CONFIG_IS_ENABLED(ENV_VARS_UBOOT_RUNTIME_CONFIG)) + return 0; + + bootmode = versal_get_bootmode(); + + puts("Bootmode: "); + switch (bootmode) { + case USB_MODE: + puts("USB_MODE\n"); + mode = "usb_dfu0 usb_dfu1"; + break; + case JTAG_MODE: + puts("JTAG_MODE\n"); + mode = "jtag pxe dhcp"; + break; + case QSPI_MODE_24BIT: + puts("QSPI_MODE_24\n"); + mode = "xspi0"; + break; + case QSPI_MODE_32BIT: + puts("QSPI_MODE_32\n"); + mode = "xspi0"; + break; + case OSPI_MODE: + puts("OSPI_MODE\n"); + mode = "xspi0"; + break; + case EMMC_MODE: + puts("EMMC_MODE\n"); + if (uclass_get_device_by_name(UCLASS_MMC, + "sdhci@f1050000", &dev)) { + puts("Boot from EMMC but without SD1 enabled!\n"); + return -1; + } + debug("mmc1 device found at %p, seq %d\n", dev, dev_seq(dev)); + mode = "mmc"; + bootseq = dev_seq(dev); + break; + case SD_MODE: + puts("SD_MODE\n"); + if (uclass_get_device_by_name(UCLASS_MMC, + "sdhci@f1040000", &dev)) { + puts("Boot from SD0 but without SD0 enabled!\n"); + return -1; + } + debug("mmc0 device found at %p, seq %d\n", dev, dev_seq(dev)); + + mode = "mmc"; + bootseq = dev_seq(dev); + break; + case SD1_LSHFT_MODE: + puts("LVL_SHFT_"); + /* fall through */ + case SD_MODE1: + puts("SD_MODE1\n"); + if (uclass_get_device_by_name(UCLASS_MMC, + "sdhci@f1050000", &dev)) { + puts("Boot from SD1 but without SD1 enabled!\n"); + return -1; + } + debug("mmc1 device found at %p, seq %d\n", dev, dev_seq(dev)); + + mode = "mmc"; + bootseq = dev_seq(dev); + break; + default: + mode = ""; + printf("Invalid Boot Mode:0x%x\n", bootmode); + break; + } + + if (bootseq >= 0) { + bootseq_len = snprintf(NULL, 0, "%i", bootseq); + debug("Bootseq len: %x\n", bootseq_len); + } + + /* + * One terminating char + one byte for space between mode + * and default boot_targets + */ + env_targets = env_get("boot_targets"); + if (env_targets) + env_targets_len = strlen(env_targets); + + new_targets = calloc(1, strlen(mode) + env_targets_len + 2 + + bootseq_len); + if (!new_targets) + return -ENOMEM; + + if (bootseq >= 0) + sprintf(new_targets, "%s%x %s", mode, bootseq, + env_targets ? env_targets : ""); + else + sprintf(new_targets, "%s %s", mode, + env_targets ? env_targets : ""); + + env_set("boot_targets", new_targets); + + return board_late_init_xilinx(); +} + +int dram_init_banksize(void) +{ + int ret; + + ret = fdtdec_setup_memory_banksize(); + if (ret) + return ret; + + mem_map_fill(); + + return 0; +} + +int dram_init(void) +{ + if (fdtdec_setup_mem_size_base_lowest() != 0) + return -EINVAL; + + return 0; +} + +void reset_cpu(void) +{ +} + +enum env_location env_get_location(enum env_operation op, int prio) +{ + u32 bootmode = versal_get_bootmode(); + + if (prio) + return ENVL_UNKNOWN; + + switch (bootmode) { + case EMMC_MODE: + case SD_MODE: + case SD1_LSHFT_MODE: + case SD_MODE1: + if (IS_ENABLED(CONFIG_ENV_IS_IN_FAT)) + return ENVL_FAT; + if (IS_ENABLED(CONFIG_ENV_IS_IN_EXT4)) + return ENVL_EXT4; + return ENVL_UNKNOWN; + case OSPI_MODE: + case QSPI_MODE_24BIT: + case QSPI_MODE_32BIT: + if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH)) + return ENVL_SPI_FLASH; + return ENVL_UNKNOWN; + case JTAG_MODE: + default: + return ENVL_NOWHERE; + } +} |