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 <init.h>
13 #include <pci.h>
14 #include <asm/global_data.h>
15 #include <asm/immap.h>
16 #include <asm/io.h>
17 #include <linux/delay.h>
18
19 DECLARE_GLOBAL_DATA_PTR;
20
checkboard(void)21 int checkboard(void)
22 {
23 puts("Board: ");
24 puts("Freescale FireEngine 5485 EVB\n");
25 return 0;
26 };
27
dram_init(void)28 int dram_init(void)
29 {
30 siu_t *siu = (siu_t *) (MMAP_SIU);
31 sdram_t *sdram = (sdram_t *)(MMAP_SDRAM);
32 u32 dramsize, i;
33 #ifdef CONFIG_SYS_DRAMSZ1
34 u32 temp;
35 #endif
36
37 out_be32(&siu->drv, CONFIG_SYS_SDRAM_DRVSTRENGTH);
38
39 dramsize = CONFIG_SYS_DRAMSZ * 0x100000;
40 for (i = 0x13; i < 0x20; i++) {
41 if (dramsize == (1 << i))
42 break;
43 }
44 i--;
45 out_be32(&siu->cs0cfg, CONFIG_SYS_SDRAM_BASE | i);
46
47 #ifdef CONFIG_SYS_DRAMSZ1
48 temp = CONFIG_SYS_DRAMSZ1 * 0x100000;
49 for (i = 0x13; i < 0x20; i++) {
50 if (temp == (1 << i))
51 break;
52 }
53 i--;
54 dramsize += temp;
55 out_be32(&siu->cs1cfg, (CONFIG_SYS_SDRAM_BASE + temp) | i);
56 #endif
57
58 out_be32(&sdram->cfg1, CONFIG_SYS_SDRAM_CFG1);
59 out_be32(&sdram->cfg2, CONFIG_SYS_SDRAM_CFG2);
60
61 /* Issue PALL */
62 out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
63
64 /* Issue LEMR */
65 out_be32(&sdram->mode, CONFIG_SYS_SDRAM_EMOD);
66 out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE | 0x04000000);
67
68 udelay(500);
69
70 /* Issue PALL */
71 out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
72
73 /* Perform two refresh cycles */
74 out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
75 out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
76
77 out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE);
78
79 out_be32(&sdram->ctrl,
80 (CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00);
81
82 udelay(100);
83
84 gd->ram_size = dramsize;
85
86 return 0;
87 };
88
testdram(void)89 int testdram(void)
90 {
91 /* TODO: XXX XXX XXX */
92 printf("DRAM test not implemented!\n");
93
94 return (0);
95 }
96
97 #if defined(CONFIG_PCI)
98 /*
99 * Initialize PCI devices, report devices found.
100 */
101 static struct pci_controller hose;
102 extern void pci_mcf547x_8x_init(struct pci_controller *hose);
103
pci_init_board(void)104 void pci_init_board(void)
105 {
106 pci_mcf547x_8x_init(&hose);
107 }
108 #endif /* CONFIG_PCI */
109