3 * Corscience GmbH & Co.KG, Andreas Bießmann <biessmann@corscience.de>
5 * Configuration settings for the grasshopper (ICnova AP7000) board
7 * SPDX-License-Identifier: GPL-2.0+
9 #ifndef __GRASSHOPPER_CONFIG_H
10 #define __GRASSHOPPER_CONFIG_H
12 #include <asm/arch/hardware.h>
15 #define CONFIG_AT32AP7000
18 * Set up the PLL to run at 140 MHz, the CPU to run at the PLL
19 * frequency, the HSB and PBB at 1/2, and the PBA to run at 1/4 the
21 * (CONFIG_SYS_OSC0_HZ * CONFIG_SYS_PLL0_MUL) / CONFIG_SYS_PLL0_DIV = PLL MHz
24 #define CONFIG_SYS_POWER_MANAGER
25 #define CONFIG_SYS_OSC0_HZ 20000000
26 #define CONFIG_SYS_PLL0_DIV 1
27 #define CONFIG_SYS_PLL0_MUL 7
28 #define CONFIG_SYS_PLL0_SUPPRESS_CYCLES 16
30 * Set the CPU running at:
31 * PLL / (2^CONFIG_SYS_CLKDIV_CPU) = CPU MHz
33 #define CONFIG_SYS_CLKDIV_CPU 0
35 * Set the HSB running at:
36 * PLL / (2^CONFIG_SYS_CLKDIV_HSB) = HSB MHz
38 #define CONFIG_SYS_CLKDIV_HSB 1
40 * Set the PBA running at:
41 * PLL / (2^CONFIG_SYS_CLKDIV_PBA) = PBA MHz
43 #define CONFIG_SYS_CLKDIV_PBA 2
45 * Set the PBB running at:
46 * PLL / (2^CONFIG_SYS_CLKDIV_PBB) = PBB MHz
48 #define CONFIG_SYS_CLKDIV_PBB 1
50 /* Reserve VM regions for SDRAM and NOR flash */
51 #define CONFIG_SYS_NR_VM_REGIONS 2
54 * The PLLOPT register controls the PLL like this:
58 * We want icp=1 (default) and ivco=0 (80-160 MHz) or ivco=2 (150-240MHz).
60 #define CONFIG_SYS_PLL0_OPT 0x04
62 #define CONFIG_USART_BASE ATMEL_BASE_USART1
63 #define CONFIG_USART_ID 1
65 /* User serviceable stuff */
66 #define CONFIG_CMDLINE_TAG
67 #define CONFIG_SETUP_MEMORY_TAGS
68 #define CONFIG_INITRD_TAG
70 #define CONFIG_STACKSIZE (2048)
72 #define CONFIG_BAUDRATE 115200
75 * Only interrupt autoboot if <space> is pressed. Otherwise, garbage
76 * data on the serial line may interrupt the boot sequence.
78 #define CONFIG_BOOTDELAY 1
79 #define CONFIG_AUTOBOOT
80 #define CONFIG_AUTOBOOT_KEYED
81 #define CONFIG_AUTOBOOT_PROMPT "Press SPACE to abort autoboot in %d" \
82 " seconds\n", bootdelay
83 #define CONFIG_AUTOBOOT_DELAY_STR "d"
84 #define CONFIG_AUTOBOOT_STOP_STR " "
87 * After booting the board for the first time, new ethernet addresses
88 * should be generated and assigned to the environment variables
89 * "ethaddr". This is normally done during production.
91 #define CONFIG_OVERWRITE_ETHADDR_ONCE
96 #define CONFIG_BOOTP_SUBNETMASK
97 #define CONFIG_BOOTP_GATEWAY
100 * Command line configuration.
102 #include <config_cmd_default.h>
104 /* remove unneeded commands */
105 #undef CONFIG_CMD_FPGA
106 #undef CONFIG_CMD_SETGETDCR
108 /* add useful commands */
109 #define CONFIG_CMD_ASKENV
110 #define CONFIG_CMD_DHCP
111 #define CONFIG_CMD_JFFS2
112 #define CONFIG_CMD_PING
113 #define CONFIG_CMD_REGINFO
115 #define CONFIG_SYS_HUSH_PARSER
116 #define CONFIG_AUTO_COMPLETE
117 #define CONFIG_CMDLINE_EDITING
119 #define CONFIG_ATMEL_USART
121 #define CONFIG_PORTMUX_PIO
122 #define CONFIG_SYS_NR_PIOS 5
123 #define CONFIG_SYS_HSDRAMC
125 #define CONFIG_SYS_DCACHE_LINESZ 32
126 #define CONFIG_SYS_ICACHE_LINESZ 32
128 #define CONFIG_NR_DRAM_BANKS 1
130 #define CONFIG_SYS_FLASH_CFI
131 #define CONFIG_FLASH_CFI_DRIVER
133 #define CONFIG_SYS_FLASH_BASE 0x00000000
134 #define CONFIG_SYS_FLASH_SIZE 0x800000
135 #define CONFIG_SYS_MAX_FLASH_BANKS 1
136 #define CONFIG_SYS_MAX_FLASH_SECT 135
138 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
139 #define CONFIG_SYS_TEXT_BASE 0x00000000
141 #define CONFIG_SYS_INTRAM_BASE INTERNAL_SRAM_BASE
142 #define CONFIG_SYS_INTRAM_SIZE INTERNAL_SRAM_SIZE
143 #define CONFIG_SYS_SDRAM_BASE EBI_SDRAM_BASE
145 #define CONFIG_ENV_IS_IN_FLASH
146 /* place u-boot env in flash sector after u-boot */
147 #define CONFIG_ENV_SIZE 0x10000
148 #define CONFIG_ENV_ADDR 0x20000
150 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_INTRAM_BASE + \
151 CONFIG_SYS_INTRAM_SIZE)
153 #define CONFIG_SYS_MALLOC_LEN (256*1024)
154 #define CONFIG_SYS_DMA_ALLOC_LEN (16384)
156 /* Allow 4MB for the kernel run-time image */
157 #define CONFIG_SYS_LOAD_ADDR (EBI_SDRAM_BASE + 0x00400000)
158 #define CONFIG_SYS_BOOTPARAMS_LEN (16 * 1024)
160 /* Other configuration settings that shouldn't have to change all that often */
161 #define CONFIG_SYS_PROMPT "U-Boot> "
162 #define CONFIG_SYS_CBSIZE 256
163 #define CONFIG_SYS_MAXARGS 16
164 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
165 sizeof(CONFIG_SYS_PROMPT) + 16)
166 #define CONFIG_SYS_LONGHELP
168 #define CONFIG_SYS_MEMTEST_START EBI_SDRAM_BASE
169 #define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_MEMTEST_START + 0x700000)
171 #endif /* __GRASSHOPPER_CONFIG_H */
172 /* vim: set ts=8 noet: */