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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2016-2018 Intel Corporation <www.intel.com>
*
*/
#include <asm/io.h>
#include <asm/u-boot.h>
#include <asm/utils.h>
#include <common.h>
#include <debug_uart.h>
#include <image.h>
#include <spl.h>
#include <asm/arch/clock_manager.h>
#include <asm/arch/firewall_s10.h>
#include <asm/arch/mailbox_s10.h>
#include <asm/arch/reset_manager.h>
#include <asm/arch/sdram_s10.h>
#include <asm/arch/system_manager.h>
#include <watchdog.h>
DECLARE_GLOBAL_DATA_PTR;
static struct socfpga_system_manager *sysmgr_regs =
(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
u32 spl_boot_device(void)
{
/* TODO: Get from SDM or handoff */
return BOOT_DEVICE_MMC1;
}
#ifdef CONFIG_SPL_MMC_SUPPORT
u32 spl_boot_mode(const u32 boot_device)
{
#if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
return MMCSD_MODE_FS;
#else
return MMCSD_MODE_RAW;
#endif
}
#endif
void spl_disable_firewall_l4_per(void)
{
const struct socfpga_firwall_l4_per *firwall_l4_per_base =
(struct socfpga_firwall_l4_per *)SOCFPGA_FIREWALL_L4_PER;
u32 i;
const u32 *addr[] = {
&firwall_l4_per_base->nand,
&firwall_l4_per_base->nand_data,
&firwall_l4_per_base->usb0,
&firwall_l4_per_base->usb1,
&firwall_l4_per_base->spim0,
&firwall_l4_per_base->spim1,
&firwall_l4_per_base->emac0,
&firwall_l4_per_base->emac1,
&firwall_l4_per_base->emac2,
&firwall_l4_per_base->sdmmc,
&firwall_l4_per_base->gpio0,
&firwall_l4_per_base->gpio1,
&firwall_l4_per_base->i2c0,
&firwall_l4_per_base->i2c1,
&firwall_l4_per_base->i2c2,
&firwall_l4_per_base->i2c3,
&firwall_l4_per_base->i2c4,
&firwall_l4_per_base->timer0,
&firwall_l4_per_base->timer1,
&firwall_l4_per_base->uart0,
&firwall_l4_per_base->uart1
};
/*
* The following lines of code will enable non-secure access
* to nand, usb, spi, emac, sdmmc, gpio, i2c, timers and uart. This
* is needed as most OS run in non-secure mode. Thus we need to
* enable non-secure access to these peripherals in order for the
* OS to use these peripherals.
*/
for (i = 0; i < ARRAY_SIZE(addr); i++)
writel(FIREWALL_L4_DISABLE_ALL, addr[i]);
}
void spl_disable_firewall_l4_sys(void)
{
const struct socfpga_firwall_l4_sys *firwall_l4_sys_base =
(struct socfpga_firwall_l4_sys *)SOCFPGA_FIREWALL_L4_SYS;
u32 i;
const u32 *addr[] = {
&firwall_l4_sys_base->dma_ecc,
&firwall_l4_sys_base->emac0rx_ecc,
&firwall_l4_sys_base->emac0tx_ecc,
&firwall_l4_sys_base->emac1rx_ecc,
&firwall_l4_sys_base->emac1tx_ecc,
&firwall_l4_sys_base->emac2rx_ecc,
&firwall_l4_sys_base->emac2tx_ecc,
&firwall_l4_sys_base->nand_ecc,
&firwall_l4_sys_base->nand_read_ecc,
&firwall_l4_sys_base->nand_write_ecc,
&firwall_l4_sys_base->ocram_ecc,
&firwall_l4_sys_base->sdmmc_ecc,
&firwall_l4_sys_base->usb0_ecc,
&firwall_l4_sys_base->usb1_ecc,
&firwall_l4_sys_base->clock_manager,
&firwall_l4_sys_base->io_manager,
&firwall_l4_sys_base->reset_manager,
&firwall_l4_sys_base->system_manager,
&firwall_l4_sys_base->watchdog0,
&firwall_l4_sys_base->watchdog1,
&firwall_l4_sys_base->watchdog2,
&firwall_l4_sys_base->watchdog3
};
for (i = 0; i < ARRAY_SIZE(addr); i++)
writel(FIREWALL_L4_DISABLE_ALL, addr[i]);
}
void board_init_f(ulong dummy)
{
const struct cm_config *cm_default_cfg = cm_get_default_config();
int ret;
#ifdef CONFIG_HW_WATCHDOG
/* Ensure watchdog is paused when debugging is happening */
writel(SYSMGR_WDDBG_PAUSE_ALL_CPU, &sysmgr_regs->wddbg);
/* Enable watchdog before initializing the HW */
socfpga_per_reset(SOCFPGA_RESET(L4WD0), 1);
socfpga_per_reset(SOCFPGA_RESET(L4WD0), 0);
hw_watchdog_init();
#endif
/* ensure all processors are not released prior Linux boot */
writeq(0, CPU_RELEASE_ADDR);
socfpga_per_reset(SOCFPGA_RESET(OSC1TIMER0), 0);
timer_init();
populate_sysmgr_pinmux();
/* configuring the HPS clocks */
cm_basic_init(cm_default_cfg);
#ifdef CONFIG_DEBUG_UART
socfpga_per_reset(SOCFPGA_RESET(UART0), 0);
debug_uart_init();
#endif
ret = spl_early_init();
if (ret) {
debug("spl_early_init() failed: %d\n", ret);
hang();
}
preloader_console_init();
cm_print_clock_quick_summary();
/* enable non-secure interface to DMA330 DMA and peripherals */
writel(SYSMGR_DMA_IRQ_NS | SYSMGR_DMA_MGR_NS, &sysmgr_regs->dma);
writel(SYSMGR_DMAPERIPH_ALL_NS, &sysmgr_regs->dma_periph);
spl_disable_firewall_l4_per();
spl_disable_firewall_l4_sys();
/* disable lwsocf2fpga and soc2fpga bridge security */
writel(FIREWALL_BRIDGE_DISABLE_ALL, SOCFPGA_FIREWALL_SOC2FPGA);
writel(FIREWALL_BRIDGE_DISABLE_ALL, SOCFPGA_FIREWALL_LWSOC2FPGA);
/* disable SMMU security */
writel(FIREWALL_L4_DISABLE_ALL, SOCFPGA_FIREWALL_TCU);
/* disable ocram security at CCU for non secure access */
clrbits_le32(CCU_REG_ADDR(CCU_CPU0_MPRT_ADMASK_MEM_RAM0),
CCU_ADMASK_P_MASK | CCU_ADMASK_NS_MASK);
clrbits_le32(CCU_REG_ADDR(CCU_IOM_MPRT_ADMASK_MEM_RAM0),
CCU_ADMASK_P_MASK | CCU_ADMASK_NS_MASK);
debug("DDR: Initializing Hard Memory Controller\n");
if (sdram_mmr_init_full(0)) {
puts("DDR: Initialization failed.\n");
hang();
}
gd->ram_size = sdram_calculate_size();
printf("DDR: %d MiB\n", (int)(gd->ram_size >> 20));
/* Sanity check ensure correct SDRAM size specified */
debug("DDR: Running SDRAM size sanity check\n");
if (get_ram_size(0, gd->ram_size) != gd->ram_size) {
puts("DDR: SDRAM size check failed!\n");
hang();
}
debug("DDR: SDRAM size check passed!\n");
mbox_init();
#ifdef CONFIG_CADENCE_QSPI
mbox_qspi_open();
#endif
}
|
