1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2013 Freescale Semiconductor, Inc.
*/
#include <common.h>
#include <ns16550.h>
#include <asm/io.h>
#include <nand.h>
#include <linux/compiler.h>
#include <asm/fsl_law.h>
#include <fsl_ddr_sdram.h>
#include <asm/global_data.h>
DECLARE_GLOBAL_DATA_PTR;
static void sdram_init(void)
{
struct ccsr_ddr __iomem *ddr =
(struct ccsr_ddr __iomem *)CONFIG_SYS_FSL_DDR_ADDR;
#if CONFIG_DDR_CLK_FREQ == 100000000
__raw_writel(CONFIG_SYS_DDR_CS0_BNDS, &ddr->cs0_bnds);
__raw_writel(CONFIG_SYS_DDR_CS0_CONFIG, &ddr->cs0_config);
__raw_writel(CONFIG_SYS_DDR_CONTROL_800 | SDRAM_CFG_32_BE, &ddr->sdram_cfg);
__raw_writel(CONFIG_SYS_DDR_CONTROL_2_800, &ddr->sdram_cfg_2);
__raw_writel(CONFIG_SYS_DDR_DATA_INIT, &ddr->sdram_data_init);
__raw_writel(CONFIG_SYS_DDR_TIMING_3_800, &ddr->timing_cfg_3);
__raw_writel(CONFIG_SYS_DDR_TIMING_0_800, &ddr->timing_cfg_0);
__raw_writel(CONFIG_SYS_DDR_TIMING_1_800, &ddr->timing_cfg_1);
__raw_writel(CONFIG_SYS_DDR_TIMING_2_800, &ddr->timing_cfg_2);
__raw_writel(CONFIG_SYS_DDR_MODE_1_800, &ddr->sdram_mode);
__raw_writel(CONFIG_SYS_DDR_MODE_2_800, &ddr->sdram_mode_2);
__raw_writel(CONFIG_SYS_DDR_INTERVAL_800, &ddr->sdram_interval);
__raw_writel(CONFIG_SYS_DDR_CLK_CTRL_800, &ddr->sdram_clk_cntl);
__raw_writel(CONFIG_SYS_DDR_WRLVL_CONTROL_800, &ddr->ddr_wrlvl_cntl);
__raw_writel(CONFIG_SYS_DDR_TIMING_4_800, &ddr->timing_cfg_4);
__raw_writel(CONFIG_SYS_DDR_TIMING_5_800, &ddr->timing_cfg_5);
__raw_writel(CONFIG_SYS_DDR_ZQ_CONTROL, &ddr->ddr_zq_cntl);
#elif CONFIG_DDR_CLK_FREQ == 133000000
__raw_writel(CONFIG_SYS_DDR_CS0_BNDS, &ddr->cs0_bnds);
__raw_writel(CONFIG_SYS_DDR_CS0_CONFIG, &ddr->cs0_config);
__raw_writel(CONFIG_SYS_DDR_CONTROL_1333 | SDRAM_CFG_32_BE, &ddr->sdram_cfg);
__raw_writel(CONFIG_SYS_DDR_CONTROL_2_1333, &ddr->sdram_cfg_2);
__raw_writel(CONFIG_SYS_DDR_DATA_INIT, &ddr->sdram_data_init);
__raw_writel(CONFIG_SYS_DDR_TIMING_3_1333, &ddr->timing_cfg_3);
__raw_writel(CONFIG_SYS_DDR_TIMING_0_1333, &ddr->timing_cfg_0);
__raw_writel(CONFIG_SYS_DDR_TIMING_1_1333, &ddr->timing_cfg_1);
__raw_writel(CONFIG_SYS_DDR_TIMING_2_1333, &ddr->timing_cfg_2);
__raw_writel(CONFIG_SYS_DDR_MODE_1_1333, &ddr->sdram_mode);
__raw_writel(CONFIG_SYS_DDR_MODE_2_1333, &ddr->sdram_mode_2);
__raw_writel(CONFIG_SYS_DDR_INTERVAL_1333, &ddr->sdram_interval);
__raw_writel(CONFIG_SYS_DDR_CLK_CTRL_1333, &ddr->sdram_clk_cntl);
__raw_writel(CONFIG_SYS_DDR_WRLVL_CONTROL_1333, &ddr->ddr_wrlvl_cntl);
__raw_writel(CONFIG_SYS_DDR_TIMING_4_1333, &ddr->timing_cfg_4);
__raw_writel(CONFIG_SYS_DDR_TIMING_5_1333, &ddr->timing_cfg_5);
__raw_writel(CONFIG_SYS_DDR_ZQ_CONTROL, &ddr->ddr_zq_cntl);
#else
puts("Not a valid DDR Freq Found! Please Reset\n");
#endif
asm volatile("sync;isync");
udelay(500);
/* Let the controller go */
out_be32(&ddr->sdram_cfg, in_be32(&ddr->sdram_cfg) | SDRAM_CFG_MEM_EN);
set_next_law(CONFIG_SYS_NAND_DDR_LAW, LAW_SIZE_1G, LAW_TRGT_IF_DDR_1);
}
void board_init_f(ulong bootflag)
{
u32 plat_ratio;
ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
/* initialize selected port with appropriate baud rate */
plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
plat_ratio >>= 1;
gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
gd->bus_clk / 16 / CONFIG_BAUDRATE);
puts("\nNAND boot... ");
/* Initialize the DDR3 */
sdram_init();
/* copy code to RAM and jump to it - this should not return */
/* NOTE - code has to be copied out of NAND buffer before
* other blocks can be read.
*/
relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
}
void board_init_r(gd_t *gd, ulong dest_addr)
{
nand_boot();
}
void putc(char c)
{
if (c == '\n')
NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
}
void puts(const char *str)
{
while (*str)
putc(*str++);
}
|
