1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2013 Freescale Semiconductor, Inc.
4  */
5 
6 #include <common.h>
7 #include <command.h>
8 #include <i2c.h>
9 #include <netdev.h>
10 #include <linux/compiler.h>
11 #include <asm/mmu.h>
12 #include <asm/processor.h>
13 #include <asm/cache.h>
14 #include <asm/immap_85xx.h>
15 #include <asm/fsl_law.h>
16 #include <asm/fsl_serdes.h>
17 #include <asm/fsl_liodn.h>
18 
19 DECLARE_GLOBAL_DATA_PTR;
20 
21 int checkboard(void)
22 {
23 	struct cpu_type *cpu = gd->arch.cpu;
24 
25 	printf("Board: %sEMU\n", cpu->name);
26 
27 	return 0;
28 }
29 
30 int board_early_init_r(void)
31 {
32 	const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
33 	int flash_esel = find_tlb_idx((void *)flashbase, 1);
34 
35 	/*
36 	 * Remap Boot flash + PROMJET region to caching-inhibited
37 	 * so that flash can be erased properly.
38 	 */
39 
40 	/* Flush d-cache and invalidate i-cache of any FLASH data */
41 	flush_dcache();
42 	invalidate_icache();
43 
44 	if (flash_esel == -1) {
45 		/* very unlikely unless something is messed up */
46 		puts("Error: Could not find TLB for FLASH BASE\n");
47 		flash_esel = 2;	/* give our best effort to continue */
48 	} else {
49 		/* invalidate existing TLB entry for flash */
50 		disable_tlb(flash_esel);
51 	}
52 
53 	set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
54 		MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
55 		0, flash_esel, BOOKE_PAGESZ_256M, 1);
56 
57 	return 0;
58 }
59 
60 int misc_init_r(void)
61 {
62 	return 0;
63 }
64 
65 int ft_board_setup(void *blob, bd_t *bd)
66 {
67 	phys_addr_t base;
68 	phys_size_t size;
69 
70 	ft_cpu_setup(blob, bd);
71 
72 	base = env_get_bootm_low();
73 	size = env_get_bootm_size();
74 
75 	fdt_fixup_memory(blob, (u64)base, (u64)size);
76 
77 	fdt_fixup_liodn(blob);
78 	fsl_fdt_fixup_dr_usb(blob, bd);
79 
80 	return 0;
81 }
82