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arm: mx5: clock: add support for changing CPU clock via cmdline
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1 /*
2  * (C) Copyright 2007-2008
3  * Stelian Pop <stelian@popies.net>
4  * Lead Tech Design <www.leadtechdesign.com>
5  *
6  * Configuation settings for the AT91SAM9260EK & AT91SAM9G20EK boards.
7  *
8  * SPDX-License-Identifier:     GPL-2.0+
9  */
10
11 #ifndef __CONFIG_H
12 #define __CONFIG_H
13
14 /*
15  * SoC must be defined first, before hardware.h is included.
16  * In this case SoC is defined in boards.cfg.
17  */
18 #include <asm/hardware.h>
19
20 /*
21  * Warning: changing CONFIG_SYS_TEXT_BASE requires
22  * adapting the initial boot program.
23  * Since the linker has to swallow that define, we must use a pure
24  * hex number here!
25  */
26 #define CONFIG_SYS_TEXT_BASE            0x21f00000
27
28 /* ARM asynchronous clock */
29 #define CONFIG_SYS_AT91_SLOW_CLOCK      32768           /* slow clock xtal */
30 #define CONFIG_SYS_AT91_MAIN_CLOCK      18432000        /* main clock xtal */
31 #define CONFIG_SYS_HZ                   1000
32
33 /* Define actual evaluation board type from used processor type */
34 #ifdef CONFIG_AT91SAM9G20
35 # define CONFIG_AT91SAM9G20EK   /* It's an Atmel AT91SAM9G20 EK */
36 #else
37 # define CONFIG_AT91SAM9260EK   /* It's an Atmel AT91SAM9260 EK */
38 #endif
39
40 /* Misc CPU related */
41 #define CONFIG_ARCH_CPU_INIT
42 #define CONFIG_CMDLINE_TAG              /* enable passing of ATAGs */
43 #define CONFIG_SETUP_MEMORY_TAGS
44 #define CONFIG_INITRD_TAG
45 #define CONFIG_SKIP_LOWLEVEL_INIT
46 #define CONFIG_BOARD_EARLY_INIT_F
47 #define CONFIG_DISPLAY_CPUINFO
48
49 #define CONFIG_CMD_BOOTZ
50 #define CONFIG_OF_LIBFDT
51
52 /* general purpose I/O */
53 #define CONFIG_ATMEL_LEGACY             /* required until (g)pio is fixed */
54 #define CONFIG_AT91_GPIO
55 #define CONFIG_AT91_GPIO_PULLUP 1       /* keep pullups on peripheral pins */
56
57 /* serial console */
58 #define CONFIG_ATMEL_USART
59 #define CONFIG_USART_BASE               ATMEL_BASE_DBGU
60 #define CONFIG_USART_ID                 ATMEL_ID_SYS
61 #define CONFIG_BAUDRATE                 115200
62
63 /* LED */
64 #define CONFIG_AT91_LED
65 #define CONFIG_RED_LED          AT91_PIN_PA9    /* this is the power led */
66 #define CONFIG_GREEN_LED        AT91_PIN_PA6    /* this is the user led */
67
68 #define CONFIG_BOOTDELAY        3
69
70 /*
71  * BOOTP options
72  */
73 #define CONFIG_BOOTP_BOOTFILESIZE       1
74 #define CONFIG_BOOTP_BOOTPATH           1
75 #define CONFIG_BOOTP_GATEWAY            1
76 #define CONFIG_BOOTP_HOSTNAME           1
77
78 /*
79  * Command line configuration.
80  */
81 #include <config_cmd_default.h>
82 #undef CONFIG_CMD_BDI
83 #undef CONFIG_CMD_FPGA
84 #undef CONFIG_CMD_IMI
85 #undef CONFIG_CMD_IMLS
86 #undef CONFIG_CMD_LOADS
87 #undef CONFIG_CMD_SOURCE
88
89 #define CONFIG_CMD_PING         1
90 #define CONFIG_CMD_DHCP         1
91 #define CONFIG_CMD_NAND         1
92 #define CONFIG_CMD_MMC
93 #define CONFIG_CMD_FAT
94 #define CONFIG_CMD_USB          1
95
96 /*
97  * SDRAM: 1 bank, min 32, max 128 MB
98  * Initialized before u-boot gets started.
99  */
100 #define CONFIG_NR_DRAM_BANKS            1
101 #define CONFIG_SYS_SDRAM_BASE           ATMEL_BASE_CS1
102 #define CONFIG_SYS_SDRAM_SIZE           0x04000000
103
104 /*
105  * Initial stack pointer: 4k - GENERATED_GBL_DATA_SIZE in internal SRAM,
106  * leaving the correct space for initial global data structure above
107  * that address while providing maximum stack area below.
108  */
109 #ifdef CONFIG_AT91SAM9XE
110 # define CONFIG_SYS_INIT_SP_ADDR \
111         (ATMEL_BASE_SRAM + 0x1000 - GENERATED_GBL_DATA_SIZE)
112 #else
113 # define CONFIG_SYS_INIT_SP_ADDR \
114         (ATMEL_BASE_SRAM1 + 0x1000 - GENERATED_GBL_DATA_SIZE)
115 #endif
116
117 /*
118  * The (arm)linux board id set by generic code depending on configured board
119  * (see boards.cfg for different boards)
120  */
121 #ifdef CONFIG_AT91SAM9G20
122         /* the sam9g20 variants have two different board ids */
123 # ifdef CONFIG_AT91SAM9G20EK_2MMC
124         /* we may be setup for the 2MMC variant of at91sam9g20ek */
125 #  define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9G20EK_2MMC
126 # else
127         /* or the normal at91sam9g20ek */
128 #  define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9G20EK
129 # endif
130 #else
131         /* otherwise default to good old at91sam9260ek */
132 # define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9260EK
133 #endif
134
135 /* DataFlash */
136 #ifndef CONFIG_AT91SAM9G20EK_2MMC
137 #define CONFIG_ATMEL_DATAFLASH_SPI
138 #define CONFIG_HAS_DATAFLASH            1
139 #define CONFIG_SYS_SPI_WRITE_TOUT               (5*CONFIG_SYS_HZ)
140 #define CONFIG_SYS_MAX_DATAFLASH_BANKS          2
141 #define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0     0xC0000000      /* CS0 */
142 #define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS1     0xD0000000      /* CS1 */
143 #define AT91_SPI_CLK                    15000000
144 #endif
145
146 #ifdef CONFIG_AT91SAM9G20EK
147 #define DATAFLASH_TCSS                  (0x22 << 16)
148 #else
149 #define DATAFLASH_TCSS                  (0x1a << 16)
150 #endif
151 #define DATAFLASH_TCHS                  (0x1 << 24)
152
153 /* NAND flash */
154 #ifdef CONFIG_CMD_NAND
155 #define CONFIG_NAND_ATMEL
156 #define CONFIG_SYS_MAX_NAND_DEVICE      1
157 #define CONFIG_SYS_NAND_BASE            ATMEL_BASE_CS3
158 #define CONFIG_SYS_NAND_DBW_8
159 #define CONFIG_SYS_NAND_MASK_ALE        (1 << 21)
160 #define CONFIG_SYS_NAND_MASK_CLE        (1 << 22)
161 #define CONFIG_SYS_NAND_ENABLE_PIN      AT91_PIN_PC14
162 #define CONFIG_SYS_NAND_READY_PIN       AT91_PIN_PC13
163 #endif
164
165 /* MMC */
166 #ifdef CONFIG_CMD_MMC
167 #define CONFIG_MMC
168 #define CONFIG_GENERIC_MMC
169 #define CONFIG_GENERIC_ATMEL_MCI
170 #endif
171
172 /* FAT */
173 #ifdef CONFIG_CMD_FAT
174 #define CONFIG_DOS_PARTITION
175 #endif
176
177 /* NOR flash - no real flash on this board */
178 #define CONFIG_SYS_NO_FLASH                     1
179
180 /* Ethernet */
181 #define CONFIG_MACB                     1
182 #define CONFIG_RMII                     1
183 #define CONFIG_NET_RETRY_COUNT          20
184 #define CONFIG_RESET_PHY_R              1
185
186 /* USB */
187 #define CONFIG_USB_ATMEL
188 #define CONFIG_USB_OHCI_NEW             1
189 #define CONFIG_SYS_USB_OHCI_CPU_INIT            1
190 #define CONFIG_SYS_USB_OHCI_REGS_BASE           0x00500000      /* AT91SAM9260_UHP_BASE */
191 #define CONFIG_SYS_USB_OHCI_SLOT_NAME           "at91sam9260"
192 #define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS      2
193 #define CONFIG_USB_STORAGE              1
194
195 #define CONFIG_SYS_LOAD_ADDR                    0x22000000      /* load address */
196
197 #define CONFIG_SYS_MEMTEST_START                CONFIG_SYS_SDRAM_BASE
198 #define CONFIG_SYS_MEMTEST_END                  0x23e00000
199
200 #ifdef CONFIG_SYS_USE_DATAFLASH_CS0
201
202 /* bootstrap + u-boot + env + linux in dataflash on CS0 */
203 #define CONFIG_ENV_IS_IN_DATAFLASH      1
204 #define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + 0x8400)
205 #define CONFIG_ENV_OFFSET               0x4200
206 #define CONFIG_ENV_ADDR         (CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + CONFIG_ENV_OFFSET)
207 #define CONFIG_ENV_SIZE         0x4200
208 #define CONFIG_BOOTCOMMAND      "cp.b 0xC0084000 0x22000000 0x210000; bootm"
209 #define CONFIG_BOOTARGS         "console=ttyS0,115200 "                 \
210                                 "root=/dev/mtdblock0 "                  \
211                                 "mtdparts=atmel_nand:-(root) "          \
212                                 "rw rootfstype=jffs2"
213
214 #elif CONFIG_SYS_USE_DATAFLASH_CS1
215
216 /* bootstrap + u-boot + env + linux in dataflash on CS1 */
217 #define CONFIG_ENV_IS_IN_DATAFLASH      1
218 #define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS1 + 0x8400)
219 #define CONFIG_ENV_OFFSET               0x4200
220 #define CONFIG_ENV_ADDR         (CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS1 + CONFIG_ENV_OFFSET)
221 #define CONFIG_ENV_SIZE         0x4200
222 #define CONFIG_BOOTCOMMAND      "cp.b 0xD0084000 0x22000000 0x210000; bootm"
223 #define CONFIG_BOOTARGS         "console=ttyS0,115200 "                 \
224                                 "root=/dev/mtdblock0 "                  \
225                                 "mtdparts=atmel_nand:-(root) "          \
226                                 "rw rootfstype=jffs2"
227
228 #elif defined(CONFIG_SYS_USE_NANDFLASH)
229
230 /* bootstrap + u-boot + env + linux in nandflash */
231 #define CONFIG_ENV_IS_IN_NAND   1
232 #define CONFIG_ENV_OFFSET               0xc0000
233 #define CONFIG_ENV_OFFSET_REDUND        0x100000
234 #define CONFIG_ENV_SIZE         0x20000         /* 1 sector = 128 kB */
235 #define CONFIG_BOOTCOMMAND      "nand read 0x22000000 0x200000 0x300000; bootm"
236 #define CONFIG_BOOTARGS                                                 \
237         "console=ttyS0,115200 earlyprintk "                             \
238         "mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro,"          \
239         "256k(env),256k(env_redundant),256k(spare),"                    \
240         "512k(dtb),6M(kernel)ro,-(rootfs) "                             \
241         "root=/dev/mtdblock7 rw rootfstype=jffs2"
242
243 #else   /* CONFIG_SYS_USE_MMC */
244 /* bootstrap + u-boot + env + linux in mmc */
245 #define CONFIG_ENV_IS_IN_MMC
246 /* For FAT system, most cases it should be in the reserved sector */
247 #define CONFIG_ENV_OFFSET               0x2000
248 #define CONFIG_ENV_SIZE                 0x1000
249 #define CONFIG_SYS_MMC_ENV_DEV          0
250
251 #define CONFIG_BOOTCOMMAND                                              \
252         "fatload mmc 0:1 0x22000000 uImage; bootm"
253 #define CONFIG_BOOTARGS                                                 \
254         "console=ttyS0,115200 earlyprintk "                             \
255         "mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro,"          \
256         "256k(env),256k(env_redundant),256k(spare),"                    \
257         "512k(dtb),6M(kernel)ro,-(rootfs) "                             \
258         "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait"
259 #endif
260
261 #define CONFIG_SYS_PROMPT               "U-Boot> "
262 #define CONFIG_SYS_CBSIZE               256
263 #define CONFIG_SYS_MAXARGS              16
264 #define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
265 #define CONFIG_SYS_LONGHELP             1
266 #define CONFIG_CMDLINE_EDITING  1
267 #define CONFIG_AUTO_COMPLETE
268
269 /*
270  * Size of malloc() pool
271  */
272 #define CONFIG_SYS_MALLOC_LEN           ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
273
274 #endif