mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-02 17:41:08 +00:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
134 lines
2.8 KiB
C
134 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2015 - 2016 Xilinx, Inc.
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*
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* Michal Simek <michal.simek@xilinx.com>
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*/
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#include <common.h>
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#include <debug_uart.h>
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#include <spl.h>
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#include <asm/io.h>
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#include <asm/spl.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/sys_proto.h>
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void board_init_f(ulong dummy)
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{
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board_early_init_f();
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board_early_init_r();
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#ifdef CONFIG_DEBUG_UART
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/* Uart debug for sure */
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debug_uart_init();
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puts("Debug uart enabled\n"); /* or printch() */
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#endif
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/* Delay is required for clocks to be propagated */
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udelay(1000000);
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/* Clear the BSS */
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memset(__bss_start, 0, __bss_end - __bss_start);
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/* No need to call timer init - it is empty for ZynqMP */
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board_init_r(NULL, 0);
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}
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static void ps_mode_reset(ulong mode)
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{
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writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT,
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&crlapb_base->boot_pin_ctrl);
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udelay(5);
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writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_VAL_SHIFT |
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mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT,
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&crlapb_base->boot_pin_ctrl);
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}
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/*
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* Set default PS_MODE1 which is used for USB ULPI phy reset
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* Also other resets can be connected to this certain pin
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*/
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#ifndef MODE_RESET
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# define MODE_RESET PS_MODE1
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#endif
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#ifdef CONFIG_SPL_BOARD_INIT
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void spl_board_init(void)
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{
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preloader_console_init();
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ps_mode_reset(MODE_RESET);
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board_init();
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}
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#endif
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u32 spl_boot_device(void)
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{
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u32 reg = 0;
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u8 bootmode;
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#if defined(CONFIG_SPL_ZYNQMP_ALT_BOOTMODE_ENABLED)
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/* Change default boot mode at run-time */
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writel(CONFIG_SPL_ZYNQMP_ALT_BOOTMODE << BOOT_MODE_ALT_SHIFT,
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&crlapb_base->boot_mode);
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#endif
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reg = readl(&crlapb_base->boot_mode);
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if (reg >> BOOT_MODE_ALT_SHIFT)
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reg >>= BOOT_MODE_ALT_SHIFT;
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bootmode = reg & BOOT_MODES_MASK;
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switch (bootmode) {
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case JTAG_MODE:
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return BOOT_DEVICE_RAM;
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#ifdef CONFIG_SPL_MMC_SUPPORT
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case SD_MODE1:
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case SD1_LSHFT_MODE: /* not working on silicon v1 */
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/* if both controllers enabled, then these two are the second controller */
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#if defined(CONFIG_ZYNQ_SDHCI0) && defined(CONFIG_ZYNQ_SDHCI1)
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return BOOT_DEVICE_MMC2;
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/* else, fall through, the one SDHCI controller that is enabled is number 1 */
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#endif
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case SD_MODE:
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case EMMC_MODE:
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return BOOT_DEVICE_MMC1;
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#endif
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#ifdef CONFIG_SPL_DFU_SUPPORT
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case USB_MODE:
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return BOOT_DEVICE_DFU;
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#endif
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#ifdef CONFIG_SPL_SATA_SUPPORT
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case SW_SATA_MODE:
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return BOOT_DEVICE_SATA;
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#endif
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#ifdef CONFIG_SPL_SPI_SUPPORT
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case QSPI_MODE_24BIT:
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case QSPI_MODE_32BIT:
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return BOOT_DEVICE_SPI;
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#endif
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default:
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printf("Invalid Boot Mode:0x%x\n", bootmode);
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break;
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}
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return 0;
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}
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#ifdef CONFIG_SPL_OS_BOOT
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int spl_start_uboot(void)
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{
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handoff_setup();
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return 0;
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}
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#endif
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#ifdef CONFIG_SPL_LOAD_FIT
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int board_fit_config_name_match(const char *name)
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{
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/* Just empty function now - can't decide what to choose */
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debug("%s: %s\n", __func__, name);
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return 0;
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}
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#endif
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