xref: /openbmc/u-boot/board/xilinx/zynqmp/zynqmp.c (revision 657fd2d0)
1 /*
2  * (C) Copyright 2014 - 2015 Xilinx, Inc.
3  * Michal Simek <michal.simek@xilinx.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <common.h>
9 #include <netdev.h>
10 #include <asm/arch/hardware.h>
11 #include <asm/arch/sys_proto.h>
12 #include <asm/io.h>
13 
14 DECLARE_GLOBAL_DATA_PTR;
15 
16 int board_init(void)
17 {
18 	return 0;
19 }
20 
21 int board_early_init_r(void)
22 {
23 	u32 val;
24 
25 	val = readl(&crlapb_base->timestamp_ref_ctrl);
26 	val |= ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT;
27 	writel(val, &crlapb_base->timestamp_ref_ctrl);
28 
29 	/* Program freq register in System counter and enable system counter */
30 	writel(gd->cpu_clk, &iou_scntr->base_frequency_id_register);
31 	writel(ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_HDBG |
32 	       ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN,
33 	       &iou_scntr->counter_control_register);
34 
35 	return 0;
36 }
37 
38 int dram_init(void)
39 {
40 	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
41 
42 	return 0;
43 }
44 
45 int timer_init(void)
46 {
47 	return 0;
48 }
49 
50 void reset_cpu(ulong addr)
51 {
52 }
53 
54 #ifdef CONFIG_CMD_MMC
55 int board_mmc_init(bd_t *bd)
56 {
57 	int ret = 0;
58 
59 	u32 ver = zynqmp_get_silicon_version();
60 
61 	if (ver != ZYNQMP_CSU_VERSION_VELOCE) {
62 #if defined(CONFIG_ZYNQ_SDHCI)
63 # if defined(CONFIG_ZYNQ_SDHCI0)
64 		ret = zynq_sdhci_init(ZYNQ_SDHCI_BASEADDR0);
65 # endif
66 # if defined(CONFIG_ZYNQ_SDHCI1)
67 		ret |= zynq_sdhci_init(ZYNQ_SDHCI_BASEADDR1);
68 # endif
69 #endif
70 	}
71 
72 	return ret;
73 }
74 #endif
75 
76 int board_late_init(void)
77 {
78 	u32 reg = 0;
79 	u8 bootmode;
80 
81 	reg = readl(&crlapb_base->boot_mode);
82 	bootmode = reg & BOOT_MODES_MASK;
83 
84 	switch (bootmode) {
85 	case SD_MODE:
86 	case EMMC_MODE:
87 		setenv("modeboot", "sdboot");
88 		break;
89 	default:
90 		printf("Invalid Boot Mode:0x%x\n", bootmode);
91 		break;
92 	}
93 
94 	return 0;
95 }
96