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git.ipfire.org Git - people/ms/u-boot.git/blob - arch/arm/mach-socfpga/spl.c
2 * Copyright (C) 2012 Altera Corporation <www.altera.com>
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/u-boot.h>
11 #include <asm/utils.h>
13 #include <asm/arch/reset_manager.h>
15 #include <asm/arch/system_manager.h>
16 #include <asm/arch/freeze_controller.h>
17 #include <asm/arch/clock_manager.h>
18 #include <asm/arch/scan_manager.h>
19 #include <asm/arch/sdram.h>
20 #include <asm/arch/scu.h>
21 #include <asm/arch/nic301.h>
22 #include <asm/sections.h>
25 #if defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
26 #include <asm/arch/pinmux.h>
29 DECLARE_GLOBAL_DATA_PTR
;
31 #if defined(CONFIG_TARGET_SOCFPGA_GEN5)
32 static struct pl310_regs
*const pl310
=
33 (struct pl310_regs
*)CONFIG_SYS_PL310_BASE
;
34 static struct scu_registers
*scu_regs
=
35 (struct scu_registers
*)SOCFPGA_MPUSCU_ADDRESS
;
36 static struct nic301_registers
*nic301_regs
=
37 (struct nic301_registers
*)SOCFPGA_L3REGS_ADDRESS
;
40 static const struct socfpga_system_manager
*sysmgr_regs
=
41 (struct socfpga_system_manager
*)SOCFPGA_SYSMGR_ADDRESS
;
43 u32
spl_boot_device(void)
45 const u32 bsel
= readl(&sysmgr_regs
->bootinfo
);
47 switch (SYSMGR_GET_BOOTINFO_BSEL(bsel
)) {
48 case 0x1: /* FPGA (HPS2FPGA Bridge) */
49 return BOOT_DEVICE_RAM
;
50 case 0x2: /* NAND Flash (1.8V) */
51 case 0x3: /* NAND Flash (3.0V) */
52 socfpga_per_reset(SOCFPGA_RESET(NAND
), 0);
53 return BOOT_DEVICE_NAND
;
54 case 0x4: /* SD/MMC External Transceiver (1.8V) */
55 case 0x5: /* SD/MMC Internal Transceiver (3.0V) */
56 socfpga_per_reset(SOCFPGA_RESET(SDMMC
), 0);
57 socfpga_per_reset(SOCFPGA_RESET(DMA
), 0);
58 return BOOT_DEVICE_MMC1
;
59 case 0x6: /* QSPI Flash (1.8V) */
60 case 0x7: /* QSPI Flash (3.0V) */
61 socfpga_per_reset(SOCFPGA_RESET(QSPI
), 0);
62 return BOOT_DEVICE_SPI
;
64 printf("Invalid boot device (bsel=%08x)!\n", bsel
);
69 #ifdef CONFIG_SPL_MMC_SUPPORT
70 u32
spl_boot_mode(const u32 boot_device
)
72 #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
75 return MMCSD_MODE_RAW
;
80 #if defined(CONFIG_TARGET_SOCFPGA_GEN5)
81 static void socfpga_nic301_slave_ns(void)
83 writel(0x1, &nic301_regs
->lwhps2fpgaregs
);
84 writel(0x1, &nic301_regs
->hps2fpgaregs
);
85 writel(0x1, &nic301_regs
->acp
);
86 writel(0x1, &nic301_regs
->rom
);
87 writel(0x1, &nic301_regs
->ocram
);
88 writel(0x1, &nic301_regs
->sdrdata
);
91 void board_init_f(ulong dummy
)
93 #ifndef CONFIG_SOCFPGA_VIRTUAL_TARGET
94 const struct cm_config
*cm_default_cfg
= cm_get_default_config();
96 unsigned long sdram_size
;
100 * First C code to run. Clear fake OCRAM ECC first as SBE
101 * and DBE might triggered during power on
103 reg
= readl(&sysmgr_regs
->eccgrp_ocram
);
104 if (reg
& SYSMGR_ECC_OCRAM_SERR
)
105 writel(SYSMGR_ECC_OCRAM_SERR
| SYSMGR_ECC_OCRAM_EN
,
106 &sysmgr_regs
->eccgrp_ocram
);
107 if (reg
& SYSMGR_ECC_OCRAM_DERR
)
108 writel(SYSMGR_ECC_OCRAM_DERR
| SYSMGR_ECC_OCRAM_EN
,
109 &sysmgr_regs
->eccgrp_ocram
);
111 memset(__bss_start
, 0, __bss_end
- __bss_start
);
113 socfpga_nic301_slave_ns();
115 /* Configure ARM MPU SNSAC register. */
116 setbits_le32(&scu_regs
->sacr
, 0xfff);
118 /* Remap SDRAM to 0x0 */
119 writel(0x1, &nic301_regs
->remap
); /* remap.mpuzero */
120 writel(0x1, &pl310
->pl310_addr_filter_start
);
122 #ifndef CONFIG_SOCFPGA_VIRTUAL_TARGET
123 debug("Freezing all I/O banks\n");
124 /* freeze all IO banks */
125 sys_mgr_frzctrl_freeze_req();
127 /* Put everything into reset but L4WD0. */
128 socfpga_per_reset_all();
129 /* Put FPGA bridges into reset too. */
130 socfpga_bridges_reset(1);
132 socfpga_per_reset(SOCFPGA_RESET(SDR
), 0);
133 socfpga_per_reset(SOCFPGA_RESET(UART0
), 0);
134 socfpga_per_reset(SOCFPGA_RESET(OSC1TIMER0
), 0);
138 debug("Reconfigure Clock Manager\n");
139 /* reconfigure the PLLs */
140 if (cm_basic_init(cm_default_cfg
))
143 /* Enable bootrom to configure IOs. */
144 sysmgr_config_warmrstcfgio(1);
146 /* configure the IOCSR / IO buffer settings */
147 if (scan_mgr_configure_iocsr())
150 sysmgr_config_warmrstcfgio(0);
152 /* configure the pin muxing through system manager */
153 sysmgr_config_warmrstcfgio(1);
154 sysmgr_pinmux_init();
155 sysmgr_config_warmrstcfgio(0);
157 #endif /* CONFIG_SOCFPGA_VIRTUAL_TARGET */
159 /* De-assert reset for peripherals and bridges based on handoff */
160 reset_deassert_peripherals_handoff();
161 socfpga_bridges_reset(0);
163 debug("Unfreezing/Thaw all I/O banks\n");
164 /* unfreeze / thaw all IO banks */
165 sys_mgr_frzctrl_thaw_req();
167 /* enable console uart printing */
168 preloader_console_init();
170 if (sdram_mmr_init_full(0xffffffff) != 0) {
171 puts("SDRAM init failed.\n");
175 debug("SDRAM: Calibrating PHY\n");
176 /* SDRAM calibration */
177 if (sdram_calibration_full() == 0) {
178 puts("SDRAM calibration failed.\n");
182 sdram_size
= sdram_calculate_size();
183 debug("SDRAM: %ld MiB\n", sdram_size
>> 20);
185 /* Sanity check ensure correct SDRAM size specified */
186 if (get_ram_size(0, sdram_size
) != sdram_size
) {
187 puts("SDRAM size check failed!\n");
191 socfpga_bridges_reset(1);
193 /* Configure simple malloc base pointer into RAM. */
194 gd
->malloc_base
= CONFIG_SYS_TEXT_BASE
+ (1024 * 1024);
196 #elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
197 void spl_board_init(void)
199 /* configuring the clock based on handoff */
200 cm_basic_init(gd
->fdt_blob
);
203 config_dedicated_pins(gd
->fdt_blob
);
206 /* Release UART from reset */
207 socfpga_reset_uart(0);
209 /* enable console uart printing */
210 preloader_console_init();
213 void board_init_f(ulong dummy
)
216 * Configure Clock Manager to use intosc clock instead external osc to
217 * ensure success watchdog operation. We do it as early as possible.
221 socfpga_watchdog_disable();
225 #ifdef CONFIG_HW_WATCHDOG
226 /* release osc1 watchdog timer 0 from reset */
227 socfpga_reset_deassert_osc1wd0();
229 /* reconfigure and enable the watchdog */
232 #endif /* CONFIG_HW_WATCHDOG */