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Prabhakar Kushwaha83e0c2b2013-04-16 13:28:40 +05301/*
2 * Copyright 2013 Freescale Semiconductor, Inc.
3 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02004 * SPDX-License-Identifier: GPL-2.0+
Prabhakar Kushwaha83e0c2b2013-04-16 13:28:40 +05305 */
6
7#include <common.h>
8#include <ns16550.h>
9#include <asm/io.h>
10#include <nand.h>
11#include <linux/compiler.h>
12#include <asm/fsl_law.h>
York Sun5614e712013-09-30 09:22:09 -070013#include <fsl_ddr_sdram.h>
Prabhakar Kushwaha83e0c2b2013-04-16 13:28:40 +053014#include <asm/global_data.h>
15
16DECLARE_GLOBAL_DATA_PTR;
17
18static void sdram_init(void)
19{
York Sun9a17eb52013-11-18 10:29:32 -080020 struct ccsr_ddr __iomem *ddr =
21 (struct ccsr_ddr __iomem *)CONFIG_SYS_FSL_DDR_ADDR;
Prabhakar Kushwaha83e0c2b2013-04-16 13:28:40 +053022#if CONFIG_DDR_CLK_FREQ == 100000000
23 __raw_writel(CONFIG_SYS_DDR_CS0_BNDS, &ddr->cs0_bnds);
24 __raw_writel(CONFIG_SYS_DDR_CS0_CONFIG, &ddr->cs0_config);
25 __raw_writel(CONFIG_SYS_DDR_CONTROL_800 | SDRAM_CFG_32_BE, &ddr->sdram_cfg);
26 __raw_writel(CONFIG_SYS_DDR_CONTROL_2_800, &ddr->sdram_cfg_2);
27 __raw_writel(CONFIG_SYS_DDR_DATA_INIT, &ddr->sdram_data_init);
28
29 __raw_writel(CONFIG_SYS_DDR_TIMING_3_800, &ddr->timing_cfg_3);
30 __raw_writel(CONFIG_SYS_DDR_TIMING_0_800, &ddr->timing_cfg_0);
31 __raw_writel(CONFIG_SYS_DDR_TIMING_1_800, &ddr->timing_cfg_1);
32 __raw_writel(CONFIG_SYS_DDR_TIMING_2_800, &ddr->timing_cfg_2);
33 __raw_writel(CONFIG_SYS_DDR_MODE_1_800, &ddr->sdram_mode);
34 __raw_writel(CONFIG_SYS_DDR_MODE_2_800, &ddr->sdram_mode_2);
35 __raw_writel(CONFIG_SYS_DDR_INTERVAL_800, &ddr->sdram_interval);
36 __raw_writel(CONFIG_SYS_DDR_CLK_CTRL_800, &ddr->sdram_clk_cntl);
37 __raw_writel(CONFIG_SYS_DDR_WRLVL_CONTROL_800, &ddr->ddr_wrlvl_cntl);
38
39 __raw_writel(CONFIG_SYS_DDR_TIMING_4_800, &ddr->timing_cfg_4);
40 __raw_writel(CONFIG_SYS_DDR_TIMING_5_800, &ddr->timing_cfg_5);
41 __raw_writel(CONFIG_SYS_DDR_ZQ_CONTROL, &ddr->ddr_zq_cntl);
42#elif CONFIG_DDR_CLK_FREQ == 133000000
43 __raw_writel(CONFIG_SYS_DDR_CS0_BNDS, &ddr->cs0_bnds);
44 __raw_writel(CONFIG_SYS_DDR_CS0_CONFIG, &ddr->cs0_config);
45 __raw_writel(CONFIG_SYS_DDR_CONTROL_1333 | SDRAM_CFG_32_BE, &ddr->sdram_cfg);
46 __raw_writel(CONFIG_SYS_DDR_CONTROL_2_1333, &ddr->sdram_cfg_2);
47 __raw_writel(CONFIG_SYS_DDR_DATA_INIT, &ddr->sdram_data_init);
48
49 __raw_writel(CONFIG_SYS_DDR_TIMING_3_1333, &ddr->timing_cfg_3);
50 __raw_writel(CONFIG_SYS_DDR_TIMING_0_1333, &ddr->timing_cfg_0);
51 __raw_writel(CONFIG_SYS_DDR_TIMING_1_1333, &ddr->timing_cfg_1);
52 __raw_writel(CONFIG_SYS_DDR_TIMING_2_1333, &ddr->timing_cfg_2);
53 __raw_writel(CONFIG_SYS_DDR_MODE_1_1333, &ddr->sdram_mode);
54 __raw_writel(CONFIG_SYS_DDR_MODE_2_1333, &ddr->sdram_mode_2);
55 __raw_writel(CONFIG_SYS_DDR_INTERVAL_1333, &ddr->sdram_interval);
56 __raw_writel(CONFIG_SYS_DDR_CLK_CTRL_1333, &ddr->sdram_clk_cntl);
57 __raw_writel(CONFIG_SYS_DDR_WRLVL_CONTROL_1333, &ddr->ddr_wrlvl_cntl);
58
59 __raw_writel(CONFIG_SYS_DDR_TIMING_4_1333, &ddr->timing_cfg_4);
60 __raw_writel(CONFIG_SYS_DDR_TIMING_5_1333, &ddr->timing_cfg_5);
61 __raw_writel(CONFIG_SYS_DDR_ZQ_CONTROL, &ddr->ddr_zq_cntl);
62#else
63 puts("Not a valid DDR Freq Found! Please Reset\n");
64#endif
65 asm volatile("sync;isync");
66 udelay(500);
67
68 /* Let the controller go */
69 out_be32(&ddr->sdram_cfg, in_be32(&ddr->sdram_cfg) | SDRAM_CFG_MEM_EN);
70
71 set_next_law(CONFIG_SYS_NAND_DDR_LAW, LAW_SIZE_1G, LAW_TRGT_IF_DDR_1);
72}
73
74void board_init_f(ulong bootflag)
75{
76 u32 plat_ratio;
77 ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
78
79 /* initialize selected port with appropriate baud rate */
80 plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
81 plat_ratio >>= 1;
82 gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
83
84 NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
85 gd->bus_clk / 16 / CONFIG_BAUDRATE);
86
87 puts("\nNAND boot... ");
88
89 /* Initialize the DDR3 */
90 sdram_init();
91
92 /* copy code to RAM and jump to it - this should not return */
93 /* NOTE - code has to be copied out of NAND buffer before
94 * other blocks can be read.
95 */
96 relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
97}
98
99void board_init_r(gd_t *gd, ulong dest_addr)
100{
101 nand_boot();
102}
103
104void putc(char c)
105{
106 if (c == '\n')
107 NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
108
109 NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
110}
111
112void puts(const char *str)
113{
114 while (*str)
115 putc(*str++);
116}