1 /*
2  * (C) Copyright 2000-2003
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
6  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
7  *
8  * SPDX-License-Identifier:	GPL-2.0+
9  */
10 
11 #include <config.h>
12 #include <common.h>
13 #include <pci.h>
14 #include <asm/immap.h>
15 #include <asm/io.h>
16 
17 DECLARE_GLOBAL_DATA_PTR;
18 
19 int checkboard(void)
20 {
21 	puts("Board: ");
22 	puts("Freescale FireEngine 5475 EVB\n");
23 	return 0;
24 };
25 
26 int dram_init(void)
27 {
28 	siu_t *siu = (siu_t *) (MMAP_SIU);
29 	sdram_t *sdram = (sdram_t *)(MMAP_SDRAM);
30 	u32 dramsize, i;
31 #ifdef CONFIG_SYS_DRAMSZ1
32 	u32 temp;
33 #endif
34 
35 	out_be32(&siu->drv, CONFIG_SYS_SDRAM_DRVSTRENGTH);
36 
37 	dramsize = CONFIG_SYS_DRAMSZ * 0x100000;
38 	for (i = 0x13; i < 0x20; i++) {
39 		if (dramsize == (1 << i))
40 			break;
41 	}
42 	i--;
43 	out_be32(&siu->cs0cfg, CONFIG_SYS_SDRAM_BASE | i);
44 
45 #ifdef CONFIG_SYS_DRAMSZ1
46 	temp = CONFIG_SYS_DRAMSZ1 * 0x100000;
47 	for (i = 0x13; i < 0x20; i++) {
48 		if (temp == (1 << i))
49 			break;
50 	}
51 	i--;
52 	dramsize += temp;
53 	out_be32(&siu->cs1cfg, (CONFIG_SYS_SDRAM_BASE + temp) | i);
54 #endif
55 
56 	out_be32(&sdram->cfg1, CONFIG_SYS_SDRAM_CFG1);
57 	out_be32(&sdram->cfg2, CONFIG_SYS_SDRAM_CFG2);
58 
59 	/* Issue PALL */
60 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
61 
62 	/* Issue LEMR */
63 	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_EMOD);
64 	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE | 0x04000000);
65 
66 	udelay(500);
67 
68 	/* Issue PALL */
69 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
70 
71 	/* Perform two refresh cycles */
72 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
73 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
74 
75 	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE);
76 
77 	out_be32(&sdram->ctrl,
78 		(CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00);
79 
80 	udelay(100);
81 
82 	gd->ram_size = dramsize;
83 
84 	return 0;
85 };
86 
87 int testdram(void)
88 {
89 	/* TODO: XXX XXX XXX */
90 	printf("DRAM test not implemented!\n");
91 
92 	return (0);
93 }
94 
95 #if defined(CONFIG_PCI)
96 /*
97  * Initialize PCI devices, report devices found.
98  */
99 static struct pci_controller hose;
100 extern void pci_mcf547x_8x_init(struct pci_controller *hose);
101 
102 void pci_init_board(void)
103 {
104 	pci_mcf547x_8x_init(&hose);
105 }
106 #endif				/* CONFIG_PCI */
107