1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2016-2018 Intel Corporation <www.intel.com> 4 * 5 */ 6 7 #include <asm/io.h> 8 #include <asm/u-boot.h> 9 #include <asm/utils.h> 10 #include <common.h> 11 #include <debug_uart.h> 12 #include <image.h> 13 #include <spl.h> 14 #include <asm/arch/clock_manager.h> 15 #include <asm/arch/firewall_s10.h> 16 #include <asm/arch/mailbox_s10.h> 17 #include <asm/arch/reset_manager.h> 18 #include <asm/arch/sdram_s10.h> 19 #include <asm/arch/system_manager.h> 20 #include <watchdog.h> 21 22 DECLARE_GLOBAL_DATA_PTR; 23 24 static struct socfpga_system_manager *sysmgr_regs = 25 (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS; 26 27 u32 spl_boot_device(void) 28 { 29 /* TODO: Get from SDM or handoff */ 30 return BOOT_DEVICE_MMC1; 31 } 32 33 #ifdef CONFIG_SPL_MMC_SUPPORT 34 u32 spl_boot_mode(const u32 boot_device) 35 { 36 #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT) 37 return MMCSD_MODE_FS; 38 #else 39 return MMCSD_MODE_RAW; 40 #endif 41 } 42 #endif 43 44 void spl_disable_firewall_l4_per(void) 45 { 46 const struct socfpga_firwall_l4_per *firwall_l4_per_base = 47 (struct socfpga_firwall_l4_per *)SOCFPGA_FIREWALL_L4_PER; 48 u32 i; 49 const u32 *addr[] = { 50 &firwall_l4_per_base->nand, 51 &firwall_l4_per_base->nand_data, 52 &firwall_l4_per_base->usb0, 53 &firwall_l4_per_base->usb1, 54 &firwall_l4_per_base->spim0, 55 &firwall_l4_per_base->spim1, 56 &firwall_l4_per_base->emac0, 57 &firwall_l4_per_base->emac1, 58 &firwall_l4_per_base->emac2, 59 &firwall_l4_per_base->sdmmc, 60 &firwall_l4_per_base->gpio0, 61 &firwall_l4_per_base->gpio1, 62 &firwall_l4_per_base->i2c0, 63 &firwall_l4_per_base->i2c1, 64 &firwall_l4_per_base->i2c2, 65 &firwall_l4_per_base->i2c3, 66 &firwall_l4_per_base->i2c4, 67 &firwall_l4_per_base->timer0, 68 &firwall_l4_per_base->timer1, 69 &firwall_l4_per_base->uart0, 70 &firwall_l4_per_base->uart1 71 }; 72 73 /* 74 * The following lines of code will enable non-secure access 75 * to nand, usb, spi, emac, sdmmc, gpio, i2c, timers and uart. This 76 * is needed as most OS run in non-secure mode. Thus we need to 77 * enable non-secure access to these peripherals in order for the 78 * OS to use these peripherals. 79 */ 80 for (i = 0; i < ARRAY_SIZE(addr); i++) 81 writel(FIREWALL_L4_DISABLE_ALL, addr[i]); 82 } 83 84 void spl_disable_firewall_l4_sys(void) 85 { 86 const struct socfpga_firwall_l4_sys *firwall_l4_sys_base = 87 (struct socfpga_firwall_l4_sys *)SOCFPGA_FIREWALL_L4_SYS; 88 u32 i; 89 const u32 *addr[] = { 90 &firwall_l4_sys_base->dma_ecc, 91 &firwall_l4_sys_base->emac0rx_ecc, 92 &firwall_l4_sys_base->emac0tx_ecc, 93 &firwall_l4_sys_base->emac1rx_ecc, 94 &firwall_l4_sys_base->emac1tx_ecc, 95 &firwall_l4_sys_base->emac2rx_ecc, 96 &firwall_l4_sys_base->emac2tx_ecc, 97 &firwall_l4_sys_base->nand_ecc, 98 &firwall_l4_sys_base->nand_read_ecc, 99 &firwall_l4_sys_base->nand_write_ecc, 100 &firwall_l4_sys_base->ocram_ecc, 101 &firwall_l4_sys_base->sdmmc_ecc, 102 &firwall_l4_sys_base->usb0_ecc, 103 &firwall_l4_sys_base->usb1_ecc, 104 &firwall_l4_sys_base->clock_manager, 105 &firwall_l4_sys_base->io_manager, 106 &firwall_l4_sys_base->reset_manager, 107 &firwall_l4_sys_base->system_manager, 108 &firwall_l4_sys_base->watchdog0, 109 &firwall_l4_sys_base->watchdog1, 110 &firwall_l4_sys_base->watchdog2, 111 &firwall_l4_sys_base->watchdog3 112 }; 113 114 for (i = 0; i < ARRAY_SIZE(addr); i++) 115 writel(FIREWALL_L4_DISABLE_ALL, addr[i]); 116 } 117 118 void board_init_f(ulong dummy) 119 { 120 const struct cm_config *cm_default_cfg = cm_get_default_config(); 121 int ret; 122 123 #ifdef CONFIG_HW_WATCHDOG 124 /* Ensure watchdog is paused when debugging is happening */ 125 writel(SYSMGR_WDDBG_PAUSE_ALL_CPU, &sysmgr_regs->wddbg); 126 127 /* Enable watchdog before initializing the HW */ 128 socfpga_per_reset(SOCFPGA_RESET(L4WD0), 1); 129 socfpga_per_reset(SOCFPGA_RESET(L4WD0), 0); 130 hw_watchdog_init(); 131 #endif 132 133 /* ensure all processors are not released prior Linux boot */ 134 writeq(0, CPU_RELEASE_ADDR); 135 136 socfpga_per_reset(SOCFPGA_RESET(OSC1TIMER0), 0); 137 timer_init(); 138 139 sysmgr_pinmux_init(); 140 141 /* configuring the HPS clocks */ 142 cm_basic_init(cm_default_cfg); 143 144 #ifdef CONFIG_DEBUG_UART 145 socfpga_per_reset(SOCFPGA_RESET(UART0), 0); 146 debug_uart_init(); 147 #endif 148 ret = spl_early_init(); 149 if (ret) { 150 debug("spl_early_init() failed: %d\n", ret); 151 hang(); 152 } 153 154 preloader_console_init(); 155 cm_print_clock_quick_summary(); 156 157 /* enable non-secure interface to DMA330 DMA and peripherals */ 158 writel(SYSMGR_DMA_IRQ_NS | SYSMGR_DMA_MGR_NS, &sysmgr_regs->dma); 159 writel(SYSMGR_DMAPERIPH_ALL_NS, &sysmgr_regs->dma_periph); 160 161 spl_disable_firewall_l4_per(); 162 163 spl_disable_firewall_l4_sys(); 164 165 /* disable lwsocf2fpga and soc2fpga bridge security */ 166 writel(FIREWALL_BRIDGE_DISABLE_ALL, SOCFPGA_FIREWALL_SOC2FPGA); 167 writel(FIREWALL_BRIDGE_DISABLE_ALL, SOCFPGA_FIREWALL_LWSOC2FPGA); 168 169 /* disable SMMU security */ 170 writel(FIREWALL_L4_DISABLE_ALL, SOCFPGA_FIREWALL_TCU); 171 172 /* disable ocram security at CCU for non secure access */ 173 clrbits_le32(CCU_REG_ADDR(CCU_CPU0_MPRT_ADMASK_MEM_RAM0), 174 CCU_ADMASK_P_MASK | CCU_ADMASK_NS_MASK); 175 clrbits_le32(CCU_REG_ADDR(CCU_IOM_MPRT_ADMASK_MEM_RAM0), 176 CCU_ADMASK_P_MASK | CCU_ADMASK_NS_MASK); 177 178 debug("DDR: Initializing Hard Memory Controller\n"); 179 if (sdram_mmr_init_full(0)) { 180 puts("DDR: Initialization failed.\n"); 181 hang(); 182 } 183 184 gd->ram_size = sdram_calculate_size(); 185 printf("DDR: %d MiB\n", (int)(gd->ram_size >> 20)); 186 187 /* Sanity check ensure correct SDRAM size specified */ 188 debug("DDR: Running SDRAM size sanity check\n"); 189 if (get_ram_size(0, gd->ram_size) != gd->ram_size) { 190 puts("DDR: SDRAM size check failed!\n"); 191 hang(); 192 } 193 debug("DDR: SDRAM size check passed!\n"); 194 195 mbox_init(); 196 197 #ifdef CONFIG_CADENCE_QSPI 198 mbox_qspi_open(); 199 #endif 200 } 201