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
checkboard(void)18 int checkboard(void)
19 {
20 puts("Board: ");
21 puts("Freescale FireEngine 5475 EVB\n");
22 return 0;
23 };
24
dram_init(void)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
testdram(void)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
pci_init_board(void)101 void pci_init_board(void)
102 {
103 pci_mcf547x_8x_init(&hose);
104 }
105 #endif /* CONFIG_PCI */
106