1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2014-2015 Freescale Semiconductor, Inc.
7 #include <clock_legacy.h>
9 #include <debug_uart.h>
15 #include <semihosting.h>
17 #include <asm/cache.h>
18 #include <asm/global_data.h>
23 #include <asm/arch/fdt.h>
24 #include <asm/arch/ppa.h>
25 #include <asm/arch/soc.h>
27 DECLARE_GLOBAL_DATA_PTR;
29 u32 spl_boot_device(void)
31 if (semihosting_enabled())
32 return BOOT_DEVICE_SMH;
34 return BOOT_DEVICE_MMC1;
36 #ifdef CONFIG_SPL_NAND_SUPPORT
37 return BOOT_DEVICE_NAND;
39 #ifdef CONFIG_QSPI_BOOT
40 return BOOT_DEVICE_NOR;
45 #ifdef CONFIG_SPL_BUILD
47 void spl_board_init(void)
49 #if defined(CONFIG_NXP_ESBC) && defined(CONFIG_FSL_LSCH2)
51 * In case of Secure Boot, the IBR configures the SMMU
52 * to allow only Secure transactions.
53 * SMMU must be reset in bypass mode.
54 * Set the ClientPD bit and Clear the USFCFG Bit
57 val = (in_le32(SMMU_SCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
58 out_le32(SMMU_SCR0, val);
59 val = (in_le32(SMMU_NSCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
60 out_le32(SMMU_NSCR0, val);
62 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
63 enable_layerscape_ns_access();
65 #ifdef CONFIG_SPL_FSL_LS_PPA
73 * Mark the whole OCRAM as non-secure, otherwise DMA devices cannot
74 * access it. This is for example necessary for MMC boot.
76 #ifdef TZPCR0SIZE_BASE
77 out_le32(TZPCR0SIZE_BASE, 0);
81 void board_init_f(ulong dummy)
88 /* Clear global data */
89 memset((void *)gd, 0, sizeof(gd_t));
90 if (IS_ENABLED(CONFIG_DEBUG_UART))
93 ret = spl_early_init();
95 debug("spl_early_init() failed: %d\n", ret);
99 #ifdef CONFIG_ARCH_LS2080A
104 preloader_console_init();
107 #if CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
108 #ifdef CONFIG_SPL_I2C
112 #if defined(CONFIG_VID) && (defined(CONFIG_ARCH_LS1088A) || \
113 defined(CONFIG_ARCH_LX2160A) || \
114 defined(CONFIG_ARCH_LX2162A))
118 #ifdef CONFIG_SPL_FSL_LS_PPA
119 #ifndef CFG_SYS_MEM_RESERVE_SECURE
120 #error Need secure RAM for PPA
123 * Secure memory location is determined in dram_init_banksize().
124 * gd->ram_size is deducted by the size of secure ram.
126 dram_init_banksize();
129 * After dram_init_bank_size(), we know U-Boot only uses the first
130 * memory bank regardless how big the memory is.
132 gd->ram_top = gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;
135 * If PPA is loaded, U-Boot will resume running at EL2.
136 * Cache and MMU will be enabled. Need a place for TLB.
137 * U-Boot will be relocated to the end of available memory
138 * in first bank. At this point, we cannot know how much
139 * memory U-Boot uses. Put TLB table lower by SPL_TLB_SETBACK
140 * to avoid overlapping. As soon as the RAM version U-Boot sets
141 * up new MMU, this space is no longer needed.
143 gd->ram_top -= SPL_TLB_SETBACK;
144 gd->arch.tlb_size = PGTABLE_SIZE;
145 gd->arch.tlb_addr = (gd->ram_top - gd->arch.tlb_size) & ~(0x10000 - 1);
146 gd->arch.tlb_allocated = gd->arch.tlb_addr;
147 #endif /* CONFIG_SPL_FSL_LS_PPA */
148 #if defined(CONFIG_QSPI_AHB_INIT) && defined(CONFIG_QSPI_BOOT)
153 #ifdef CONFIG_SPL_OS_BOOT
156 * 0 if booting into OS is selected
157 * 1 if booting into U-Boot is selected
159 int spl_start_uboot(void)
162 if (env_get_yesno("boot_os") != 0)
167 #endif /* CONFIG_SPL_OS_BOOT */
168 #endif /* CONFIG_SPL_BUILD */