blob: fd54ea979d78176a685517ddff69148d46695cfc (
plain)
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
116
117
118
119
120
121
|
/*
* Copyright (C) 2012 Altera Corporation <www.altera.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/pl310.h>
#include <asm/u-boot.h>
#include <asm/utils.h>
#include <image.h>
#include <asm/arch/reset_manager.h>
#include <spl.h>
#include <asm/arch/system_manager.h>
#include <asm/arch/freeze_controller.h>
#include <asm/arch/clock_manager.h>
#include <asm/arch/scan_manager.h>
#include <asm/arch/sdram.h>
DECLARE_GLOBAL_DATA_PTR;
static struct pl310_regs *const pl310 =
(struct pl310_regs *)CONFIG_SYS_PL310_BASE;
void board_init_f(ulong dummy)
{
struct socfpga_system_manager *sysmgr_regs =
(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
unsigned long reg;
/*
* First C code to run. Clear fake OCRAM ECC first as SBE
* and DBE might triggered during power on
*/
reg = readl(&sysmgr_regs->eccgrp_ocram);
if (reg & SYSMGR_ECC_OCRAM_SERR)
writel(SYSMGR_ECC_OCRAM_SERR | SYSMGR_ECC_OCRAM_EN,
&sysmgr_regs->eccgrp_ocram);
if (reg & SYSMGR_ECC_OCRAM_DERR)
writel(SYSMGR_ECC_OCRAM_DERR | SYSMGR_ECC_OCRAM_EN,
&sysmgr_regs->eccgrp_ocram);
memset(__bss_start, 0, __bss_end - __bss_start);
/* Remap SDRAM to 0x0 */
writel(0x1, &pl310->pl310_addr_filter_start);
board_init_r(NULL, 0);
}
u32 spl_boot_device(void)
{
return BOOT_DEVICE_RAM;
}
/*
* Board initialization after bss clearance
*/
void spl_board_init(void)
{
unsigned long sdram_size;
#ifndef CONFIG_SOCFPGA_VIRTUAL_TARGET
const struct cm_config *cm_default_cfg = cm_get_default_config();
#endif
debug("Freezing all I/O banks\n");
/* freeze all IO banks */
sys_mgr_frzctrl_freeze_req();
socfpga_per_reset(SOCFPGA_RESET(SDR), 0);
socfpga_per_reset(SOCFPGA_RESET(UART0), 0);
socfpga_per_reset(SOCFPGA_RESET(OSC1TIMER0), 0);
timer_init();
debug("Reconfigure Clock Manager\n");
/* reconfigure the PLLs */
cm_basic_init(cm_default_cfg);
/* Enable bootrom to configure IOs. */
sysmgr_config_warmrstcfgio(1);
/* configure the IOCSR / IO buffer settings */
if (scan_mgr_configure_iocsr())
hang();
/* configure the pin muxing through system manager */
sysmgr_pinmux_init();
#endif /* CONFIG_SOCFPGA_VIRTUAL_TARGET */
/* de-assert reset for peripherals and bridges based on handoff */
reset_deassert_peripherals_handoff();
debug("Unfreezing/Thaw all I/O banks\n");
/* unfreeze / thaw all IO banks */
sys_mgr_frzctrl_thaw_req();
/* enable console uart printing */
preloader_console_init();
if (sdram_mmr_init_full(0xffffffff) != 0) {
puts("SDRAM init failed.\n");
hang();
}
debug("SDRAM: Calibrating PHY\n");
/* SDRAM calibration */
if (sdram_calibration_full() == 0) {
puts("SDRAM calibration failed.\n");
hang();
}
sdram_size = sdram_calculate_size();
debug("SDRAM: %ld MiB\n", sdram_size >> 20);
/* Sanity check ensure correct SDRAM size specified */
if (get_ram_size(0, sdram_size) != sdram_size) {
puts("SDRAM size check failed!\n");
hang();
}
}
|