]>
Commit | Line | Data |
---|---|---|
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 | ||
17 | #ifdef CONFIG_BCM2835 | |
060f9bf5 | 18 | #define CONFIG_SYS_CACHELINE_SIZE 32 |
fe84ebf0 SW |
19 | #else |
20 | #define CONFIG_SYS_CACHELINE_SIZE 64 | |
21 | #endif | |
22 | ||
23 | /* Architecture, CPU, etc.*/ | |
24 | #define CONFIG_ARCH_CPU_INIT | |
25 | ||
26 | /* Use SoC timer for AArch32, but architected timer for AArch64 */ | |
27 | #ifndef CONFIG_ARM64 | |
28 | #define CONFIG_SYS_TIMER_RATE 1000000 | |
29 | #define CONFIG_SYS_TIMER_COUNTER \ | |
30 | (&((struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR)->clo) | |
31 | #endif | |
32 | ||
33 | /* | |
34 | * 2835 is a SKU in a series for which the 2708 is the first or primary SoC, | |
35 | * so 2708 has historically been used rather than a dedicated 2835 ID. | |
36 | * | |
37 | * We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation | |
38 | * chose to use someone else's previously registered machine ID (3139, MX51_GGC) | |
39 | * rather than obtaining a valid ID:-/ | |
40 | * | |
41 | * For the bcm2837, hopefully a machine type is not needed, since everything | |
42 | * is DT. | |
43 | */ | |
44 | #ifdef CONFIG_BCM2835 | |
45 | #define CONFIG_MACH_TYPE MACH_TYPE_BCM2708 | |
46 | #endif | |
47 | ||
48 | /* Memory layout */ | |
49 | #define CONFIG_NR_DRAM_BANKS 1 | |
50 | #define CONFIG_SYS_SDRAM_BASE 0x00000000 | |
108f8418 SW |
51 | #ifdef CONFIG_ARM64 |
52 | #define CONFIG_SYS_TEXT_BASE 0x00080000 | |
53 | #else | |
fe84ebf0 | 54 | #define CONFIG_SYS_TEXT_BASE 0x00008000 |
108f8418 | 55 | #endif |
fe84ebf0 SW |
56 | #define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE |
57 | /* | |
58 | * The board really has 256M. However, the VC (VideoCore co-processor) shares | |
59 | * the RAM, and uses a configurable portion at the top. We tell U-Boot that a | |
60 | * smaller amount of RAM is present in order to avoid stomping on the area | |
61 | * the VC uses. | |
62 | */ | |
63 | #define CONFIG_SYS_SDRAM_SIZE SZ_128M | |
64 | #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \ | |
65 | CONFIG_SYS_SDRAM_SIZE - \ | |
66 | GENERATED_GBL_DATA_SIZE) | |
67 | #define CONFIG_SYS_MALLOC_LEN SZ_4M | |
68 | #define CONFIG_SYS_MEMTEST_START 0x00100000 | |
69 | #define CONFIG_SYS_MEMTEST_END 0x00200000 | |
70 | #define CONFIG_LOADADDR 0x00200000 | |
71 | ||
72 | /* Flash */ | |
73 | #define CONFIG_SYS_NO_FLASH | |
74 | ||
75 | /* Devices */ | |
76 | /* GPIO */ | |
77 | #define CONFIG_BCM2835_GPIO | |
78 | /* LCD */ | |
79 | #define CONFIG_LCD | |
80 | #define CONFIG_LCD_DT_SIMPLEFB | |
81 | #define LCD_BPP LCD_COLOR16 | |
82 | /* | |
83 | * Prevent allocation of RAM for FB; the real FB address is queried | |
84 | * dynamically from the VideoCore co-processor, and comes from RAM | |
85 | * not owned by the ARM CPU. | |
86 | */ | |
87 | #define CONFIG_FB_ADDR 0 | |
88 | #define CONFIG_VIDEO_BCM2835 | |
89 | #define CONFIG_SYS_WHITE_ON_BLACK | |
90 | #define CONFIG_CONSOLE_SCROLL_LINES 10 | |
91 | ||
92 | /* SD/MMC configuration */ | |
93 | #define CONFIG_GENERIC_MMC | |
94 | #define CONFIG_MMC | |
95 | #define CONFIG_SDHCI | |
96 | #define CONFIG_MMC_SDHCI_IO_ACCESSORS | |
97 | #define CONFIG_BCM2835_SDHCI | |
98 | ||
fe84ebf0 SW |
99 | #ifdef CONFIG_CMD_USB |
100 | #define CONFIG_USB_DWC2 | |
101 | #ifndef CONFIG_BCM2835 | |
102 | #define CONFIG_USB_DWC2_REG_ADDR 0x3f980000 | |
103 | #else | |
104 | #define CONFIG_USB_DWC2_REG_ADDR 0x20980000 | |
105 | #endif | |
106 | #define CONFIG_USB_STORAGE | |
107 | #define CONFIG_USB_HOST_ETHER | |
108 | #define CONFIG_USB_ETHER_SMSC95XX | |
109 | #define CONFIG_MISC_INIT_R | |
110 | #define CONFIG_USB_KEYBOARD | |
111 | #define CONFIG_SYS_USB_EVENT_POLL | |
112 | #define CONFIG_SYS_STDIO_DEREGISTER | |
113 | #endif | |
114 | ||
115 | /* Console UART */ | |
116 | #ifdef CONFIG_BCM2837 | |
117 | #define CONFIG_BCM283X_MU_SERIAL | |
118 | #else | |
119 | #define CONFIG_PL01X_SERIAL | |
120 | #endif | |
121 | #define CONFIG_CONS_INDEX 0 | |
122 | #define CONFIG_BAUDRATE 115200 | |
123 | ||
124 | /* Console configuration */ | |
125 | #define CONFIG_SYS_CBSIZE 1024 | |
126 | #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ | |
127 | sizeof(CONFIG_SYS_PROMPT) + 16) | |
128 | ||
129 | /* Environment */ | |
130 | #define CONFIG_ENV_SIZE SZ_16K | |
131 | #define CONFIG_ENV_IS_IN_FAT | |
132 | #define FAT_ENV_INTERFACE "mmc" | |
133 | #define FAT_ENV_DEVICE_AND_PART "0:1" | |
134 | #define FAT_ENV_FILE "uboot.env" | |
135 | #define CONFIG_FAT_WRITE | |
136 | #define CONFIG_ENV_VARS_UBOOT_CONFIG | |
137 | #define CONFIG_SYS_LOAD_ADDR 0x1000000 | |
138 | #define CONFIG_CONSOLE_MUX | |
139 | #define CONFIG_SYS_CONSOLE_IS_IN_ENV | |
140 | #define CONFIG_PREBOOT "usb start" | |
141 | ||
142 | /* Shell */ | |
143 | #define CONFIG_SYS_MAXARGS 16 | |
144 | #define CONFIG_COMMAND_HISTORY | |
145 | ||
146 | /* Commands */ | |
fe84ebf0 SW |
147 | #define CONFIG_PARTITION_UUIDS |
148 | #define CONFIG_CMD_PART | |
149 | ||
150 | /* ATAGs support for bootm/bootz */ | |
151 | #define CONFIG_SETUP_MEMORY_TAGS | |
152 | #define CONFIG_CMDLINE_TAG | |
153 | #define CONFIG_INITRD_TAG | |
154 | ||
155 | #include <config_distro_defaults.h> | |
156 | ||
157 | /* Environment */ | |
158 | #define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG | |
159 | #define ENV_DEVICE_SETTINGS \ | |
160 | "stdin=serial,usbkbd\0" \ | |
161 | "stdout=serial,lcd\0" \ | |
162 | "stderr=serial,lcd\0" | |
163 | ||
164 | /* | |
165 | * Memory layout for where various images get loaded by boot scripts: | |
166 | * | |
167 | * I suspect address 0 is used as the SMP pen on the RPi2, so avoid this. | |
168 | * | |
169 | * fdt_addr_r simply shouldn't overlap anything else. However, the RPi's | |
170 | * binary firmware loads a DT to address 0x100, so we choose this address to | |
171 | * match it. This allows custom boot scripts to pass this DT on to Linux | |
172 | * simply by not over-writing the data at this address. When using U-Boot, | |
173 | * U-Boot (and scripts it executes) typicaly ignore the DT loaded by the FW | |
174 | * and loads its own DT from disk (triggered by boot.scr or extlinux.conf). | |
175 | * | |
176 | * pxefile_addr_r can be pretty much anywhere that doesn't conflict with | |
177 | * something else. Put it low in memory to avoid conflicts. | |
178 | * | |
179 | * kernel_addr_r must be within the first 128M of RAM in order for the | |
180 | * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will | |
181 | * decompress itself to 0x8000 after the start of RAM, kernel_addr_r | |
182 | * should not overlap that area, or the kernel will have to copy itself | |
183 | * somewhere else before decompression. Similarly, the address of any other | |
184 | * data passed to the kernel shouldn't overlap the start of RAM. Pushing | |
185 | * this up to 16M allows for a sizable kernel to be decompressed below the | |
186 | * compressed load address. | |
187 | * | |
188 | * scriptaddr can be pretty much anywhere that doesn't conflict with something | |
189 | * else. Choosing 32M allows for the compressed kernel to be up to 16M. | |
190 | * | |
191 | * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows | |
192 | * for any boot script to be up to 1M, which is hopefully plenty. | |
193 | */ | |
194 | #define ENV_MEM_LAYOUT_SETTINGS \ | |
195 | "fdt_high=ffffffff\0" \ | |
196 | "initrd_high=ffffffff\0" \ | |
197 | "fdt_addr_r=0x00000100\0" \ | |
198 | "pxefile_addr_r=0x00100000\0" \ | |
199 | "kernel_addr_r=0x01000000\0" \ | |
200 | "scriptaddr=0x02000000\0" \ | |
201 | "ramdisk_addr_r=0x02100000\0" \ | |
202 | ||
203 | #define BOOT_TARGET_DEVICES(func) \ | |
204 | func(MMC, mmc, 0) \ | |
205 | func(USB, usb, 0) \ | |
206 | func(PXE, pxe, na) \ | |
207 | func(DHCP, dhcp, na) | |
208 | #include <config_distro_bootcmd.h> | |
209 | ||
210 | #define CONFIG_EXTRA_ENV_SETTINGS \ | |
211 | "dhcpuboot=usb start; dhcp u-boot.uimg; bootm\0" \ | |
212 | ENV_DEVICE_SETTINGS \ | |
213 | ENV_MEM_LAYOUT_SETTINGS \ | |
214 | BOOTENV | |
060f9bf5 | 215 | |
fe84ebf0 | 216 | #define CONFIG_BOOTDELAY 2 |
0d04f34a | 217 | |
0d04f34a | 218 | #endif |