xref: /openbmc/u-boot/include/configs/mxs.h (revision f6ae1ca0)
1 /*
2  * Copyright (C) 2013 Marek Vasut <marex@denx.de>
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of
7  * the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
17  * MA 02111-1307 USA
18  */
19 #ifndef __CONFIGS_MXS_H__
20 #define __CONFIGS_MXS_H__
21 
22 /*
23  * Includes
24  */
25 
26 #if defined(CONFIG_MX23) && defined(CONFIG_MX28)
27 #error Select either CONFIG_MX23 or CONFIG_MX28 , never both!
28 #elif !defined(CONFIG_MX23) && !defined(CONFIG_MX28)
29 #error Select one of CONFIG_MX23 or CONFIG_MX28 !
30 #endif
31 
32 #include <asm/arch/regs-base.h>
33 
34 #if defined(CONFIG_MX23)
35 #include <asm/arch/iomux-mx23.h>
36 #elif defined(CONFIG_MX28)
37 #include <asm/arch/iomux-mx28.h>
38 #endif
39 
40 /*
41  * CPU specifics
42  */
43 
44 /* MXS uses FDT */
45 #define CONFIG_OF_LIBFDT
46 
47 /* Startup hooks */
48 #define CONFIG_BOARD_EARLY_INIT_F
49 #define CONFIG_ARCH_MISC_INIT
50 
51 /* SPL */
52 #define CONFIG_SPL
53 #define CONFIG_SPL_NO_CPU_SUPPORT_CODE
54 #define CONFIG_SPL_START_S_PATH	"arch/arm/cpu/arm926ejs/mxs"
55 #define CONFIG_SPL_LDSCRIPT	"arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds"
56 #define CONFIG_SPL_LIBCOMMON_SUPPORT
57 #define CONFIG_SPL_LIBGENERIC_SUPPORT
58 #define CONFIG_SPL_GPIO_SUPPORT
59 
60 /* Memory sizes */
61 #define CONFIG_SYS_MALLOC_LEN		0x00400000	/* 4 MB for malloc */
62 #define CONFIG_SYS_MEMTEST_START	0x40000000	/* Memtest start adr */
63 #define CONFIG_SYS_MEMTEST_END		0x40400000	/* 4 MB RAM test */
64 
65 /* OCRAM at 0x0 ; 32kB on MX23 ; 128kB on MX28 */
66 #define CONFIG_SYS_INIT_RAM_ADDR	0x00000000
67 #if defined(CONFIG_MX23)
68 #define CONFIG_SYS_INIT_RAM_SIZE	(32 * 1024)
69 #elif defined(CONFIG_MX28)
70 #define CONFIG_SYS_INIT_RAM_SIZE	(128 * 1024)
71 #endif
72 
73 /* Point initial SP in SRAM so SPL can use it too. */
74 #define CONFIG_SYS_INIT_SP_OFFSET \
75 	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
76 #define CONFIG_SYS_INIT_SP_ADDR \
77 	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
78 
79 /*
80  * We need to sacrifice first 4 bytes of RAM here to avoid triggering some
81  * strange BUG in ROM corrupting first 4 bytes of RAM when loading U-Boot
82  * binary. In case there was more of this mess, 0x100 bytes are skipped.
83  *
84  * In case of a HAB boot, we cannot for some weird reason use the first 4KiB
85  * of DRAM when loading. Moreover, we use the first 4 KiB for IVT and CST
86  * blocks, thus U-Boot starts at offset +8 KiB of DRAM start.
87  *
88  * As for the SPL, we must avoid the first 4 KiB as well, but we load the
89  * IVT and CST to 0x8000, so we don't need to waste the subsequent 4 KiB.
90  */
91 #define CONFIG_SYS_TEXT_BASE		0x40002000
92 #define CONFIG_SPL_TEXT_BASE		0x00001000
93 
94 /* U-Boot general configuration */
95 #define CONFIG_SYS_LONGHELP
96 #ifndef CONFIG_SYS_PROMPT
97 #endif
98 #define CONFIG_SYS_CBSIZE	1024		/* Console I/O buffer size */
99 #define CONFIG_SYS_PBSIZE	\
100 	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
101 						/* Print buffer size */
102 #define CONFIG_SYS_MAXARGS	32		/* Max number of command args */
103 #define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE
104 						/* Boot argument buffer size */
105 #define CONFIG_VERSION_VARIABLE			/* U-BOOT version */
106 #define CONFIG_AUTO_COMPLETE			/* Command auto complete */
107 #define CONFIG_CMDLINE_EDITING			/* Command history etc */
108 #define CONFIG_SYS_HUSH_PARSER
109 #define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
110 
111 /* Booting Linux */
112 #define CONFIG_CMDLINE_TAG
113 #define CONFIG_SETUP_MEMORY_TAGS
114 
115 /*
116  * Drivers
117  */
118 
119 /* APBH DMA */
120 #define CONFIG_APBH_DMA
121 
122 /* GPIO */
123 #define CONFIG_MXS_GPIO
124 
125 /*
126  * DUART Serial Driver.
127  * Conflicts with AUART driver which can be set by board.
128  */
129 #ifndef CONFIG_MXS_AUART
130 #define CONFIG_PL011_SERIAL
131 #define CONFIG_PL011_CLOCK		24000000
132 #define CONFIG_PL01x_PORTS		{ (void *)MXS_UARTDBG_BASE }
133 #define CONFIG_CONS_INDEX		0
134 #endif
135 /* Default baudrate can be overriden by board! */
136 #ifndef CONFIG_BAUDRATE
137 #define CONFIG_BAUDRATE			115200
138 #endif
139 
140 /* FEC Ethernet on SoC */
141 #ifdef CONFIG_FEC_MXC
142 #define CONFIG_MII
143 #ifndef CONFIG_ETHPRIME
144 #define CONFIG_ETHPRIME			"FEC0"
145 #endif
146 #ifndef CONFIG_FEC_XCV_TYPE
147 #define CONFIG_FEC_XCV_TYPE		RMII
148 #endif
149 #endif
150 
151 /* I2C */
152 #ifdef CONFIG_CMD_I2C
153 #define CONFIG_I2C_MXS
154 #define CONFIG_HARD_I2C
155 #ifndef CONFIG_SYS_I2C_SPEED
156 #define CONFIG_SYS_I2C_SPEED		400000
157 #endif
158 #endif
159 
160 /* LCD */
161 #ifdef CONFIG_VIDEO
162 #define CONFIG_CFB_CONSOLE
163 #define CONFIG_VIDEO_MXS
164 #define CONFIG_VIDEO_SW_CURSOR
165 #define CONFIG_VGA_AS_SINGLE_DEVICE
166 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
167 #endif
168 
169 /* MMC */
170 #ifdef CONFIG_CMD_MMC
171 #define CONFIG_MMC
172 #define CONFIG_GENERIC_MMC
173 #define CONFIG_BOUNCE_BUFFER
174 #define CONFIG_MXS_MMC
175 #endif
176 
177 /* NAND */
178 #ifdef CONFIG_CMD_NAND
179 #define CONFIG_NAND_MXS
180 #define CONFIG_SYS_MAX_NAND_DEVICE	1
181 #define CONFIG_SYS_NAND_BASE		0x60000000
182 #define CONFIG_SYS_NAND_5_ADDR_CYCLE
183 #endif
184 
185 /* OCOTP */
186 #ifdef CONFIG_CMD_FUSE
187 #define CONFIG_MXS_OCOTP
188 #endif
189 
190 /* SPI */
191 #ifdef CONFIG_CMD_SPI
192 #define CONFIG_HARD_SPI
193 #define CONFIG_MXS_SPI
194 #define CONFIG_SPI_HALF_DUPLEX
195 #endif
196 
197 /* USB */
198 #ifdef CONFIG_CMD_USB
199 #define CONFIG_USB_EHCI
200 #define CONFIG_USB_EHCI_MXS
201 #define CONFIG_EHCI_IS_TDI
202 #endif
203 
204 #endif	/* __CONFIGS_MXS_H__ */
205