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https://github.com/smaeul/u-boot.git
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84c7204bd1
Add basic Xilinx ZynqMP arm64 support. Serial and SD is supported. It supports emulation platfrom ep108 and QEMU. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@konsulko.com>
91 lines
1.5 KiB
C
91 lines
1.5 KiB
C
/*
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* (C) Copyright 2014 - 2015 Xilinx, Inc.
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* Michal Simek <michal.simek@xilinx.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <netdev.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/io.h>
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DECLARE_GLOBAL_DATA_PTR;
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int board_init(void)
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{
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return 0;
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}
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int board_early_init_r(void)
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{
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u32 val;
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val = readl(&crlapb_base->timestamp_ref_ctrl);
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val |= ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT;
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writel(val, &crlapb_base->timestamp_ref_ctrl);
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/* Program freq register in System counter and enable system counter */
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writel(gd->cpu_clk, &iou_scntr->base_frequency_id_register);
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writel(ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_HDBG |
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ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN,
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&iou_scntr->counter_control_register);
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return 0;
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}
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int dram_init(void)
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{
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gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
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return 0;
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}
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int timer_init(void)
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{
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return 0;
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}
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void reset_cpu(ulong addr)
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{
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}
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#ifdef CONFIG_CMD_MMC
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int board_mmc_init(bd_t *bd)
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{
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int ret = 0;
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#if defined(CONFIG_ZYNQ_SDHCI)
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# if defined(CONFIG_ZYNQ_SDHCI0)
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ret = zynq_sdhci_init(ZYNQ_SDHCI_BASEADDR0);
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# endif
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# if defined(CONFIG_ZYNQ_SDHCI1)
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ret |= zynq_sdhci_init(ZYNQ_SDHCI_BASEADDR1);
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# endif
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#endif
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return ret;
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}
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#endif
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int board_late_init(void)
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{
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u32 reg = 0;
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u8 bootmode;
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reg = readl(&crlapb_base->boot_mode);
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bootmode = reg & BOOT_MODES_MASK;
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switch (bootmode) {
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case SD_MODE:
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setenv("modeboot", "sdboot");
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break;
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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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