]> Git Repo - u-boot.git/blob - board/emulation/qemu-arm/qemu-arm.c
fdt: Swap the signature for board_fdt_blob_setup()
[u-boot.git] / board / emulation / qemu-arm / qemu-arm.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 2017 Tuomas Tynkkynen
4  */
5
6 #include <config.h>
7 #include <cpu_func.h>
8 #include <dm.h>
9 #include <efi.h>
10 #include <efi_loader.h>
11 #include <fdtdec.h>
12 #include <init.h>
13 #include <log.h>
14 #include <usb.h>
15 #include <virtio_types.h>
16 #include <virtio.h>
17
18 #include <linux/kernel.h>
19 #include <linux/sizes.h>
20
21 /* GUIDs for capsule updatable firmware images */
22 #define QEMU_ARM_UBOOT_IMAGE_GUID \
23         EFI_GUID(0xf885b085, 0x99f8, 0x45af, 0x84, 0x7d, \
24                  0xd5, 0x14, 0x10, 0x7a, 0x4a, 0x2c)
25
26 #define QEMU_ARM64_UBOOT_IMAGE_GUID \
27         EFI_GUID(0x058b7d83, 0x50d5, 0x4c47, 0xa1, 0x95, \
28                  0x60, 0xd8, 0x6a, 0xd3, 0x41, 0xc4)
29
30 #ifdef CONFIG_ARM64
31 #include <asm/armv8/mmu.h>
32
33 #if IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT)
34 struct efi_fw_image fw_images[] = {
35 #if defined(CONFIG_TARGET_QEMU_ARM_32BIT)
36         {
37                 .image_type_id = QEMU_ARM_UBOOT_IMAGE_GUID,
38                 .fw_name = u"Qemu-Arm-UBOOT",
39                 .image_index = 1,
40         },
41 #elif defined(CONFIG_TARGET_QEMU_ARM_64BIT)
42         {
43                 .image_type_id = QEMU_ARM64_UBOOT_IMAGE_GUID,
44                 .fw_name = u"Qemu-Arm-UBOOT",
45                 .image_index = 1,
46         },
47 #endif
48 };
49
50 struct efi_capsule_update_info update_info = {
51         .num_images = ARRAY_SIZE(fw_images),
52         .images = fw_images,
53 };
54
55 #endif /* EFI_HAVE_CAPSULE_SUPPORT */
56
57 static struct mm_region qemu_arm64_mem_map[] = {
58         {
59                 /* Flash */
60                 .virt = 0x00000000UL,
61                 .phys = 0x00000000UL,
62                 .size = 0x08000000UL,
63                 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
64                          PTE_BLOCK_INNER_SHARE
65         }, {
66                 /* Lowmem peripherals */
67                 .virt = 0x08000000UL,
68                 .phys = 0x08000000UL,
69                 .size = 0x38000000,
70                 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
71                          PTE_BLOCK_NON_SHARE |
72                          PTE_BLOCK_PXN | PTE_BLOCK_UXN
73         }, {
74                 /* RAM */
75                 .virt = 0x40000000UL,
76                 .phys = 0x40000000UL,
77                 .size = 255UL * SZ_1G,
78                 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
79                          PTE_BLOCK_INNER_SHARE
80         }, {
81                 /* Highmem PCI-E ECAM memory area */
82                 .virt = 0x4010000000ULL,
83                 .phys = 0x4010000000ULL,
84                 .size = 0x10000000,
85                 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
86                          PTE_BLOCK_NON_SHARE |
87                          PTE_BLOCK_PXN | PTE_BLOCK_UXN
88         }, {
89                 /* Highmem PCI-E MMIO memory area */
90                 .virt = 0x8000000000ULL,
91                 .phys = 0x8000000000ULL,
92                 .size = 0x8000000000ULL,
93                 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
94                          PTE_BLOCK_NON_SHARE |
95                          PTE_BLOCK_PXN | PTE_BLOCK_UXN
96         }, {
97                 /* List terminator */
98                 0,
99         }
100 };
101
102 struct mm_region *mem_map = qemu_arm64_mem_map;
103 #endif
104
105 int board_init(void)
106 {
107         return 0;
108 }
109
110 int board_late_init(void)
111 {
112         /*
113          * Make sure virtio bus is enumerated so that peripherals
114          * on the virtio bus can be discovered by their drivers
115          */
116         virtio_init();
117
118         /* start usb so that usb keyboard can be used as input device */
119         if (CONFIG_IS_ENABLED(USB_KEYBOARD))
120                 usb_init();
121
122         return 0;
123 }
124
125 int dram_init(void)
126 {
127         if (fdtdec_setup_mem_size_base() != 0)
128                 return -EINVAL;
129
130         /*
131          * When LPAE is enabled (ARMv7),
132          * 1:1 mapping is created using 2 MB blocks.
133          *
134          * In case amount of memory provided to QEMU
135          * is not multiple of 2 MB, round down the amount
136          * of available memory to avoid hang during MMU
137          * initialization.
138          */
139         if (CONFIG_IS_ENABLED(ARMV7_LPAE))
140                 gd->ram_size -= (gd->ram_size % 0x200000);
141
142         return 0;
143 }
144
145 int dram_init_banksize(void)
146 {
147         fdtdec_setup_memory_banksize();
148
149         return 0;
150 }
151
152 int board_fdt_blob_setup(void **fdtp)
153 {
154         /* QEMU loads a generated DTB for us at the start of RAM. */
155         *fdtp = (void *)CFG_SYS_SDRAM_BASE;
156
157         return 0;
158 }
159
160 void enable_caches(void)
161 {
162          icache_enable();
163          dcache_enable();
164 }
165
166 #ifdef CONFIG_ARM64
167 #define __W     "w"
168 #else
169 #define __W
170 #endif
171
172 u8 flash_read8(void *addr)
173 {
174         u8 ret;
175
176         asm("ldrb %" __W "0, %1" : "=r"(ret) : "m"(*(u8 *)addr));
177         return ret;
178 }
179
180 u16 flash_read16(void *addr)
181 {
182         u16 ret;
183
184         asm("ldrh %" __W "0, %1" : "=r"(ret) : "m"(*(u16 *)addr));
185         return ret;
186 }
187
188 u32 flash_read32(void *addr)
189 {
190         u32 ret;
191
192         asm("ldr %" __W "0, %1" : "=r"(ret) : "m"(*(u32 *)addr));
193         return ret;
194 }
195
196 void flash_write8(u8 value, void *addr)
197 {
198         asm("strb %" __W "1, %0" : "=m"(*(u8 *)addr) : "r"(value));
199 }
200
201 void flash_write16(u16 value, void *addr)
202 {
203         asm("strh %" __W "1, %0" : "=m"(*(u16 *)addr) : "r"(value));
204 }
205
206 void flash_write32(u32 value, void *addr)
207 {
208         asm("str %" __W "1, %0" : "=m"(*(u32 *)addr) : "r"(value));
209 }
This page took 0.039936 seconds and 4 git commands to generate.