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 <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 5329 EVB\n");
22 	return 0;
23 };
24 
25 phys_size_t initdram(int board_type)
26 {
27 	sdram_t *sdram = (sdram_t *)(MMAP_SDRAM);
28 	u32 dramsize, i;
29 
30 	dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000;
31 
32 	for (i = 0x13; i < 0x20; i++) {
33 		if (dramsize == (1 << i))
34 			break;
35 	}
36 	i--;
37 
38 	out_be32(&sdram->cs0, CONFIG_SYS_SDRAM_BASE | i);
39 	out_be32(&sdram->cfg1, CONFIG_SYS_SDRAM_CFG1);
40 	out_be32(&sdram->cfg2, CONFIG_SYS_SDRAM_CFG2);
41 
42 	/* Issue PALL */
43 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
44 
45 	/* Issue LEMR */
46 	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_EMOD);
47 	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE | 0x04000000);
48 
49 	udelay(500);
50 
51 	/* Issue PALL */
52 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
53 
54 	/* Perform two refresh cycles */
55 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
56 	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
57 
58 	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE);
59 
60 	out_be32(&sdram->ctrl,
61 		(CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000c00);
62 
63 	udelay(100);
64 
65 	return dramsize;
66 };
67 
68 int testdram(void)
69 {
70 	/* TODO: XXX XXX XXX */
71 	printf("DRAM test not implemented!\n");
72 
73 	return (0);
74 }
75