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1/*
2 * (C) Copyright 2010
3 * Reinhard Meyer, EMK Elektronik, reinhard.meyer@emk-elektronik.de
4 *
5 * Configuation settings for the TOP9000 CPU module with AT91SAM9XE.
6 *
1a459660 7 * SPDX-License-Identifier: GPL-2.0+
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8 */
9/*
10 * top9000 with at91sam9xe256 or at91sam9xe512
11 *
12 * Initial Bootloader is in embedded flash.
13 * Vital Product Data, U-Boot Environment are in I2C-EEPROM.
14 * U-Boot is in embedded flash, a backup U-Boot can be in NAND flash.
15 * kernel and file system are either in NAND flash or on a micro SD card.
16 * NAND flash is optional.
17 * I2C EEPROM is never optional.
18 * SPI FRAM is optional.
19 * SPI ENC28J60 is optional.
20 * 16 or 32 bit wide SDRAM.
21 */
22#ifndef __CONFIG_H
23#define __CONFIG_H
24
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25/* SoC must be defined first, before hardware.h is included */
26#define CONFIG_AT91SAM9XE
27#include <asm/hardware.h>
28
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29/*
30 * Warning: changing CONFIG_SYS_TEXT_BASE requires
f805548b 31 * adapting the initial boot program.
d55c5c3f 32 */
f805548b 33#define CONFIG_SYS_TEXT_BASE 0x20000000 /* start of SDRAM */
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34
35/* Command line configuration */
36#include <config_cmd_default.h>
37#undef CONFIG_CMD_FPGA
38#undef CONFIG_CMD_SETGETDCR
39#undef CONFIG_CMD_XIMG
40#define CONFIG_CMD_ASKENV
41#define CONFIG_SYS_CBSIZE 256
42#define CONFIG_SYS_MAXARGS 16
43#define CONFIG_SYS_PBSIZE \
44 (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
45#define CONFIG_SYS_PROMPT "TOP9000> "
46#define CONFIG_SYS_LONGHELP
47#define CONFIG_CMDLINE_EDITING
48#define CONFIG_CMD_BDI
49#define CONFIG_CMD_CACHE
50
51/* ARM asynchronous clock */
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52#define CONFIG_SYS_AT91_SLOW_CLOCK 32768 /* slow clock xtal */
53#define CONFIG_SYS_AT91_MAIN_CLOCK 18432000 /* main clock xtal */
d55c5c3f 54
d55c5c3f 55/* Misc CPU related */
d55c5c3f 56#define CONFIG_ARCH_CPU_INIT
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57#define CONFIG_CMDLINE_TAG /* enable passing of ATAGs */
58#define CONFIG_SETUP_MEMORY_TAGS
59#define CONFIG_INITRD_TAG
60#define CONFIG_SKIP_LOWLEVEL_INIT
61#define CONFIG_BOARD_EARLY_INIT_F
62#define CONFIG_DISPLAY_CPUINFO
63#define CONFIG_AT91RESET_EXTRST /* assert external reset */
64
65/* general purpose I/O */
9b372b2c 66#define CONFIG_ATMEL_LEGACY /* required until (g)pio is fixed */
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67#define CONFIG_AT91_GPIO
68#define CONFIG_AT91_GPIO_PULLUP 1 /* keep pullups on peripheral pins */
69
70/* serial console */
71#define CONFIG_ATMEL_USART
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72#define CONFIG_USART_BASE ATMEL_BASE_DBGU
73#define CONFIG_USART_ID ATMEL_ID_SYS
d55c5c3f 74#define CONFIG_BAUDRATE 115200
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75
76/* SD/MMC card */
77#define CONFIG_MMC
78#define CONFIG_GENERIC_MMC
79#define CONFIG_GENERIC_ATMEL_MCI
80#define CONFIG_SYS_MMC_CD_PIN AT91_PIN_PC9
81#define CONFIG_CMD_MMC
82
83/* Ethernet */
84#define CONFIG_MACB
85#define CONFIG_SYS_PHY_ID 1
86#define CONFIG_RMII
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87#define CONFIG_NET_RETRY_COUNT 20
88
89/* real time clock */
90#define CONFIG_RTC_AT91SAM9_RTT
91#define CONFIG_CMD_DATE
92
93#if defined(CONFIG_AT91SAM9XE)
94/*
95 * NOR flash - use embedded flash of SAM9XE256/512
96 * U-Boot will not fit into 128K !
97 * 2010.09 will not fit into 256K with all options enabled !
98 *
99 * Layout:
100 * 16kB 1st Bootloader
101 * Rest U-Boot
102 * the first sector (16kB) of EFLASH cannot be unprotected
103 * with u-boot commands
104 */
105# define CONFIG_AT91_EFLASH
9b372b2c 106# define CONFIG_SYS_FLASH_BASE ATMEL_BASE_FLASH
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107# define CONFIG_SYS_MAX_FLASH_SECT 32
108# define CONFIG_SYS_MAX_FLASH_BANKS 1
109# define CONFIG_SYS_FLASH_PROTECTION
110# define CONFIG_EFLASH_PROTSECTORS 1 /* protect first sector */
111#endif
112
113/* SPI */
114#define CONFIG_ATMEL_SPI
115#define CONFIG_CMD_SPI
116
117/* RAMTRON FRAM */
118#define CONFIG_CMD_SF
119#define CONFIG_ATMEL_SPI0 /* SPI used for FRAM is SPI0 */
120#define FRAM_SPI_BUS 0
121#define FRAM_CS_NUM 0
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122#define CONFIG_SPI_FRAM_RAMTRON
123#define CONFIG_SF_DEFAULT_SPEED 1000000 /* be conservative here... */
124#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
125#define CONFIG_SPI_FRAM_RAMTRON_NON_JEDEC "FM25H20"
126
127/* Microchip ENC28J60 (second LAN) */
128#if defined(CONFIG_EVAL9000)
129# define CONFIG_ENC28J60
130# define CONFIG_ATMEL_SPI1 /* SPI used for ENC28J60 is SPI1 */
131# define ENC_SPI_BUS 1
132# define ENC_CS_NUM 0
133# define ENC_SPI_CLOCK 1000000
134#endif /* CONFIG_EVAL9000 */
135
136/*
137 * SDRAM: 1 bank, min 32, max 128 MB
138 * Initialized before u-boot gets started.
139 */
140#define CONFIG_NR_DRAM_BANKS 1
9b372b2c 141#define CONFIG_SYS_SDRAM_BASE ATMEL_BASE_CS1
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142#define CONFIG_SYS_SDRAM_SIZE 0x08000000
143#define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE
9b372b2c 144#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_SDRAM_BASE + 0x01e00000)
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145#define CONFIG_SYS_LOAD_ADDR \
146 (CONFIG_SYS_SDRAM_BASE + 0x01000000)
147/*
148 * Initial stack pointer: 16k - GENERATED_GBL_DATA_SIZE in internal SRAM,
149 * leaving the correct space for initial global data structure above
150 * that address while providing maximum stack area below.
151 */
152#define CONFIG_SYS_INIT_SP_ADDR \
9b372b2c 153 (ATMEL_BASE_SRAM + 0x4000 - GENERATED_GBL_DATA_SIZE)
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154
155/*
156 * NAND flash: 256 MB (optional)
157 *
158 * Layout:
159 * 640kB: u-boot (includes space for spare sectors, handled by
160 * initial loader)
161 * 2MB: kernel
162 * rest: file system
163 */
164#define CONFIG_NAND_ATMEL
165#define CONFIG_SYS_MAX_NAND_DEVICE 1
9b372b2c 166#define CONFIG_SYS_NAND_BASE ATMEL_BASE_CS3
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167#define CONFIG_SYS_NAND_DBW_8
168#define CONFIG_SYS_NAND_MASK_ALE (1 << 21)
169#define CONFIG_SYS_NAND_MASK_CLE (1 << 22)
170#define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PC14
171#define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PC13
172#define CONFIG_CMD_NAND
173
174/* USB */
175#define CONFIG_USB_ATMEL
176#define CONFIG_USB_OHCI_NEW
177#define CONFIG_DOS_PARTITION
178#define CONFIG_SYS_USB_OHCI_CPU_INIT
9b372b2c 179#define CONFIG_SYS_USB_OHCI_REGS_BASE ATMEL_UHP_BASE
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180#define CONFIG_SYS_USB_OHCI_SLOT_NAME "top9000"
181#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 2
182#define CONFIG_USB_STORAGE
183#define CONFIG_CMD_USB
184
185/* I2C support must always be enabled */
d55c5c3f 186#define CONFIG_CMD_I2C
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187#define CONFIG_SYS_I2C
188#define CONFIG_SYS_I2C_SOFT /* I2C bit-banged */
189#define CONFIG_SYS_I2C_SOFT_SPEED 400000
190#define CONFIG_SYS_I2C_SOFT_SLAVE 0x7F
191
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192#define I2C0_PORT AT91_PIO_PORTA
193#define SDA0_PIN 23
194#define SCL0_PIN 24
195#define I2C1_PORT AT91_PIO_PORTB
196#define SDA1_PIN 12
197#define SCL1_PIN 13
198#define I2C_SOFT_DECLARATIONS void iic_init(void);\
199 int iic_read(void);\
200 void iic_sda(int);\
201 void iic_scl(int);
202#define I2C_ACTIVE
203#define I2C_TRISTATE
204#define I2C_INIT iic_init()
205#define I2C_READ iic_read()
206#define I2C_SDA(bit) iic_sda(bit)
207#define I2C_SCL(bit) iic_scl(bit)
208#define I2C_DELAY udelay(3)
209/* EEPROM configuration */
210#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 5
211#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 5
212#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2
213#define CONFIG_SYS_EEPROM_SIZE 0x2000
214#define CONFIG_SYS_I2C_EEPROM_ADDR 0x57
215/* later: #define CONFIG_I2C_ENV_EEPROM_BUS 0 */
216/* ENV is always in I2C-EEPROM */
217#define CONFIG_ENV_IS_IN_EEPROM
218#define CONFIG_ENV_OFFSET 0x1000
219#define CONFIG_ENV_SIZE 0x0f00
220/* VPD settings */
221#define CONFIG_SYS_I2C_FACT_ADDR 0x57
222#define CONFIG_SYS_FACT_OFFSET 0x1F00
223#define CONFIG_SYS_FACT_SIZE 0x0100
224/* later: #define CONFIG_MISC_INIT_R */
225/* define the next only if you want to allow users to enter VPD data */
226#define CONFIG_SYS_FACT_ENTRY
227#ifndef __ASSEMBLY__
228extern void read_factory_r(void);
229#endif
230
231/*
232 * Only interrupt autoboot if <space> is pressed. Otherwise, garbage
233 * data on the serial line may interrupt the boot sequence.
234 */
235#define CONFIG_BOOTDELAY 1
236#define CONFIG_AUTOBOOT
237#define CONFIG_AUTOBOOT_KEYED
238#define CONFIG_AUTOBOOT_PROMPT \
239 "Press SPACE to abort autoboot in %d seconds\n", bootdelay
240#define CONFIG_AUTOBOOT_DELAY_STR "d"
241#define CONFIG_AUTOBOOT_STOP_STR " "
242
243/*
244 * add filesystem commands if we have at least 1 storage
245 * media with filesystem
246 */
247#if defined(CONFIG_NAND_ATMEL) \
248 || defined(CONFIG_USB_ATMEL) \
249 || defined(CONFIG_MMC)
250# define CONFIG_DOS_PARTITION
251# define CONFIG_CMD_FAT
252# define CONFIG_CMD_EXT2
253/* later: #define CONFIG_CMD_JFFS2 */
254#endif
255
256/* add NET commands if we have at least 1 LAN */
257#if defined(CONFIG_MACB) || defined(CONFIG_ENC28J60)
258# define CONFIG_CMD_PING
259# define CONFIG_CMD_DHCP
260# define CONFIG_CMD_MII
261/* is this really needed ? */
262# define CONFIG_RESET_PHY_R
263/* BOOTP options */
264# define CONFIG_BOOTP_BOOTFILESIZE
265# define CONFIG_BOOTP_BOOTPATH
266# define CONFIG_BOOTP_GATEWAY
267# define CONFIG_BOOTP_HOSTNAME
268#endif
269
270/* linux in NAND flash */
271#define CONFIG_BOOTCOUNT_LIMIT 1
272#define CONFIG_BOOTCOMMAND \
273 "nand read 0x21000000 0xA0000 0x200000; bootm"
274#define CONFIG_BOOTARGS \
275 "console=ttyS0,115200 " \
276 "root=/dev/mtdblock2 " \
277 "mtdparts=atmel_nand:" \
278 "640k(uboot)ro," \
279 "2M(linux)," \
280 "16M(root)," \
281 "-(rest) " \
282 "rw "\
283 "rootfstype=jffs2"
284
285/* Size of malloc() pool */
286#define CONFIG_SYS_MALLOC_LEN \
287 ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
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288
289#endif