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0d04f34a | 1 | /* |
fe84ebf0 | 2 | * (C) Copyright 2012-2016 Stephen Warren |
0d04f34a | 3 | * |
a033171b | 4 | * SPDX-License-Identifier: GPL-2.0 |
0d04f34a SW |
5 | */ |
6 | ||
7 | #ifndef __CONFIG_H | |
8 | #define __CONFIG_H | |
9 | ||
fe84ebf0 SW |
10 | #include <linux/sizes.h> |
11 | #include <asm/arch/timer.h> | |
12 | ||
13 | #if defined(CONFIG_TARGET_RPI_2) || defined(CONFIG_TARGET_RPI_3_32B) | |
14 | #define CONFIG_SKIP_LOWLEVEL_INIT | |
15 | #endif | |
16 | ||
fe84ebf0 SW |
17 | /* Architecture, CPU, etc.*/ |
18 | #define CONFIG_ARCH_CPU_INIT | |
19 | ||
20 | /* Use SoC timer for AArch32, but architected timer for AArch64 */ | |
21 | #ifndef CONFIG_ARM64 | |
22 | #define CONFIG_SYS_TIMER_RATE 1000000 | |
23 | #define CONFIG_SYS_TIMER_COUNTER \ | |
24 | (&((struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR)->clo) | |
25 | #endif | |
26 | ||
fe84ebf0 SW |
27 | /* Memory layout */ |
28 | #define CONFIG_NR_DRAM_BANKS 1 | |
29 | #define CONFIG_SYS_SDRAM_BASE 0x00000000 | |
108f8418 SW |
30 | #ifdef CONFIG_ARM64 |
31 | #define CONFIG_SYS_TEXT_BASE 0x00080000 | |
32 | #else | |
fe84ebf0 | 33 | #define CONFIG_SYS_TEXT_BASE 0x00008000 |
108f8418 | 34 | #endif |
fe84ebf0 SW |
35 | #define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE |
36 | /* | |
37 | * The board really has 256M. However, the VC (VideoCore co-processor) shares | |
38 | * the RAM, and uses a configurable portion at the top. We tell U-Boot that a | |
39 | * smaller amount of RAM is present in order to avoid stomping on the area | |
40 | * the VC uses. | |
41 | */ | |
42 | #define CONFIG_SYS_SDRAM_SIZE SZ_128M | |
43 | #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \ | |
44 | CONFIG_SYS_SDRAM_SIZE - \ | |
45 | GENERATED_GBL_DATA_SIZE) | |
46 | #define CONFIG_SYS_MALLOC_LEN SZ_4M | |
47 | #define CONFIG_SYS_MEMTEST_START 0x00100000 | |
48 | #define CONFIG_SYS_MEMTEST_END 0x00200000 | |
49 | #define CONFIG_LOADADDR 0x00200000 | |
50 | ||
51 | /* Flash */ | |
52 | #define CONFIG_SYS_NO_FLASH | |
53 | ||
54 | /* Devices */ | |
55 | /* GPIO */ | |
56 | #define CONFIG_BCM2835_GPIO | |
57 | /* LCD */ | |
fe84ebf0 | 58 | #define CONFIG_LCD_DT_SIMPLEFB |
8b82dd9a | 59 | #define LCD_BPP LCD_COLOR32 |
fe84ebf0 SW |
60 | /* |
61 | * Prevent allocation of RAM for FB; the real FB address is queried | |
62 | * dynamically from the VideoCore co-processor, and comes from RAM | |
63 | * not owned by the ARM CPU. | |
64 | */ | |
65 | #define CONFIG_FB_ADDR 0 | |
66 | #define CONFIG_VIDEO_BCM2835 | |
67 | #define CONFIG_SYS_WHITE_ON_BLACK | |
fe84ebf0 SW |
68 | |
69 | /* SD/MMC configuration */ | |
70 | #define CONFIG_GENERIC_MMC | |
fe84ebf0 | 71 | |
fe84ebf0 SW |
72 | #ifdef CONFIG_CMD_USB |
73 | #define CONFIG_USB_DWC2 | |
74 | #ifndef CONFIG_BCM2835 | |
75 | #define CONFIG_USB_DWC2_REG_ADDR 0x3f980000 | |
76 | #else | |
77 | #define CONFIG_USB_DWC2_REG_ADDR 0x20980000 | |
78 | #endif | |
fe84ebf0 SW |
79 | #define CONFIG_USB_HOST_ETHER |
80 | #define CONFIG_USB_ETHER_SMSC95XX | |
d0375f3c | 81 | #define CONFIG_TFTP_TSIZE |
fe84ebf0 | 82 | #define CONFIG_MISC_INIT_R |
fe84ebf0 | 83 | #define CONFIG_SYS_USB_EVENT_POLL |
fe84ebf0 SW |
84 | #endif |
85 | ||
86 | /* Console UART */ | |
87 | #ifdef CONFIG_BCM2837 | |
88 | #define CONFIG_BCM283X_MU_SERIAL | |
89 | #else | |
90 | #define CONFIG_PL01X_SERIAL | |
91 | #endif | |
92 | #define CONFIG_CONS_INDEX 0 | |
93 | #define CONFIG_BAUDRATE 115200 | |
94 | ||
95 | /* Console configuration */ | |
96 | #define CONFIG_SYS_CBSIZE 1024 | |
97 | #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ | |
98 | sizeof(CONFIG_SYS_PROMPT) + 16) | |
99 | ||
100 | /* Environment */ | |
101 | #define CONFIG_ENV_SIZE SZ_16K | |
102 | #define CONFIG_ENV_IS_IN_FAT | |
103 | #define FAT_ENV_INTERFACE "mmc" | |
104 | #define FAT_ENV_DEVICE_AND_PART "0:1" | |
105 | #define FAT_ENV_FILE "uboot.env" | |
106 | #define CONFIG_FAT_WRITE | |
107 | #define CONFIG_ENV_VARS_UBOOT_CONFIG | |
108 | #define CONFIG_SYS_LOAD_ADDR 0x1000000 | |
fe84ebf0 SW |
109 | #define CONFIG_PREBOOT "usb start" |
110 | ||
111 | /* Shell */ | |
112 | #define CONFIG_SYS_MAXARGS 16 | |
113 | #define CONFIG_COMMAND_HISTORY | |
114 | ||
115 | /* Commands */ | |
fe84ebf0 SW |
116 | #define CONFIG_PARTITION_UUIDS |
117 | #define CONFIG_CMD_PART | |
118 | ||
119 | /* ATAGs support for bootm/bootz */ | |
120 | #define CONFIG_SETUP_MEMORY_TAGS | |
121 | #define CONFIG_CMDLINE_TAG | |
122 | #define CONFIG_INITRD_TAG | |
123 | ||
124 | #include <config_distro_defaults.h> | |
125 | ||
126 | /* Environment */ | |
127 | #define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG | |
128 | #define ENV_DEVICE_SETTINGS \ | |
129 | "stdin=serial,usbkbd\0" \ | |
130 | "stdout=serial,lcd\0" \ | |
131 | "stderr=serial,lcd\0" | |
132 | ||
133 | /* | |
134 | * Memory layout for where various images get loaded by boot scripts: | |
135 | * | |
136 | * I suspect address 0 is used as the SMP pen on the RPi2, so avoid this. | |
137 | * | |
138 | * fdt_addr_r simply shouldn't overlap anything else. However, the RPi's | |
139 | * binary firmware loads a DT to address 0x100, so we choose this address to | |
140 | * match it. This allows custom boot scripts to pass this DT on to Linux | |
141 | * simply by not over-writing the data at this address. When using U-Boot, | |
142 | * U-Boot (and scripts it executes) typicaly ignore the DT loaded by the FW | |
143 | * and loads its own DT from disk (triggered by boot.scr or extlinux.conf). | |
144 | * | |
145 | * pxefile_addr_r can be pretty much anywhere that doesn't conflict with | |
146 | * something else. Put it low in memory to avoid conflicts. | |
147 | * | |
148 | * kernel_addr_r must be within the first 128M of RAM in order for the | |
149 | * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will | |
150 | * decompress itself to 0x8000 after the start of RAM, kernel_addr_r | |
151 | * should not overlap that area, or the kernel will have to copy itself | |
152 | * somewhere else before decompression. Similarly, the address of any other | |
153 | * data passed to the kernel shouldn't overlap the start of RAM. Pushing | |
154 | * this up to 16M allows for a sizable kernel to be decompressed below the | |
155 | * compressed load address. | |
156 | * | |
157 | * scriptaddr can be pretty much anywhere that doesn't conflict with something | |
158 | * else. Choosing 32M allows for the compressed kernel to be up to 16M. | |
159 | * | |
160 | * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows | |
161 | * for any boot script to be up to 1M, which is hopefully plenty. | |
162 | */ | |
163 | #define ENV_MEM_LAYOUT_SETTINGS \ | |
164 | "fdt_high=ffffffff\0" \ | |
165 | "initrd_high=ffffffff\0" \ | |
166 | "fdt_addr_r=0x00000100\0" \ | |
167 | "pxefile_addr_r=0x00100000\0" \ | |
168 | "kernel_addr_r=0x01000000\0" \ | |
169 | "scriptaddr=0x02000000\0" \ | |
170 | "ramdisk_addr_r=0x02100000\0" \ | |
171 | ||
172 | #define BOOT_TARGET_DEVICES(func) \ | |
173 | func(MMC, mmc, 0) \ | |
174 | func(USB, usb, 0) \ | |
175 | func(PXE, pxe, na) \ | |
176 | func(DHCP, dhcp, na) | |
177 | #include <config_distro_bootcmd.h> | |
178 | ||
179 | #define CONFIG_EXTRA_ENV_SETTINGS \ | |
180 | "dhcpuboot=usb start; dhcp u-boot.uimg; bootm\0" \ | |
181 | ENV_DEVICE_SETTINGS \ | |
182 | ENV_MEM_LAYOUT_SETTINGS \ | |
183 | BOOTENV | |
060f9bf5 | 184 | |
0d04f34a | 185 | |
0d04f34a | 186 | #endif |