1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2000-2003
4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5  *
6  * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
7  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
8  */
9 
10 #include <config.h>
11 #include <common.h>
12 #include <pci.h>
13 #include <asm/immap.h>
14 #include <asm/io.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 int checkboard(void)
19 {
20 	puts("Board: ");
21 	puts("Freescale FireEngine 5485 EVB\n");
22 	return 0;
23 };
24 
25 int dram_init(void)
26 {
27 	siu_t *siu = (siu_t *) (MMAP_SIU);
28 	sdram_t *sdram = (sdram_t *)(MMAP_SDRAM);
29 	u32 dramsize, i;
30 #ifdef CONFIG_SYS_DRAMSZ1
31 	u32 temp;
32 #endif
33 
34 	out_be32(&siu->drv, CONFIG_SYS_SDRAM_DRVSTRENGTH);
35 
36 	dramsize = CONFIG_SYS_DRAMSZ * 0x100000;
37 	for (i = 0x13; i < 0x20; i++) {
38 		if (dramsize == (1 << i))
39 			break;
40 	}
41 	i--;
42 	out_be32(&siu->cs0cfg, CONFIG_SYS_SDRAM_BASE | i);
43 
44 #ifdef CONFIG_SYS_DRAMSZ1
45 	temp = CONFIG_SYS_DRAMSZ1 * 0x100000;
46 	for (i = 0x13; i < 0x20; i++) {
47 		if (temp == (1 << i))
48 			break;
49 	}
50 	i--;
51 	dramsize += temp;
52 	out_be32(&siu->cs1cfg, (CONFIG_SYS_SDRAM_BASE + temp) | i);
53 #endif
54 
55 	out_be32(&sdram->cfg1, CONFIG_SYS_SDRAM_CFG1);
56 	out_be32(&sdram->cfg2, CONFIG_SYS_SDRAM_CFG2);
57 
58 	/* Issue PALL */
59 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
60 
61 	/* Issue LEMR */
62 	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_EMOD);
63 	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE | 0x04000000);
64 
65 	udelay(500);
66 
67 	/* Issue PALL */
68 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
69 
70 	/* Perform two refresh cycles */
71 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
72 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
73 
74 	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE);
75 
76 	out_be32(&sdram->ctrl,
77 		(CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00);
78 
79 	udelay(100);
80 
81 	gd->ram_size = dramsize;
82 
83 	return 0;
84 };
85 
86 int testdram(void)
87 {
88 	/* TODO: XXX XXX XXX */
89 	printf("DRAM test not implemented!\n");
90 
91 	return (0);
92 }
93 
94 #if defined(CONFIG_PCI)
95 /*
96  * Initialize PCI devices, report devices found.
97  */
98 static struct pci_controller hose;
99 extern void pci_mcf547x_8x_init(struct pci_controller *hose);
100 
101 void pci_init_board(void)
102 {
103 	pci_mcf547x_8x_init(&hose);
104 }
105 #endif				/* CONFIG_PCI */
106