1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright 2013 Freescale Semiconductor, Inc.
5 * Configuration settings for the phytec PCM-052 SoM.
11 #include <asm/arch/imx-regs.h>
12 #include <linux/sizes.h>
13 #include <linux/stringify.h>
15 #define CONFIG_SKIP_LOWLEVEL_INIT
17 /* Enable passing of ATAGs */
18 #define CONFIG_CMDLINE_TAG
20 /* Size of malloc() pool */
21 #define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 2 * SZ_1M)
24 #define CONFIG_SYS_NAND_ONFI_DETECTION
26 #define CONFIG_SYS_MAX_NAND_DEVICE 1
28 /* We boot from the gfxRAM area of the OCRAM. */
29 #define CONFIG_BOARD_SIZE_LIMIT 520192
31 /* if no target-specific extra environment settings were defined by the
32 target, define an empty one */
33 #ifndef PCM052_EXTRA_ENV_SETTINGS
34 #define PCM052_EXTRA_ENV_SETTINGS
37 /* if no target-specific boot command was defined by the target,
38 define an empty one */
39 #ifndef PCM052_BOOTCOMMAND
40 #define PCM052_BOOTCOMMAND
43 /* if no target-specific extra environment settings were defined by the
44 target, define an empty one */
45 #ifndef PCM052_NET_INIT
46 #define PCM052_NET_INIT
49 /* boot command, including the target-defined one if any */
50 #define CONFIG_BOOTCOMMAND PCM052_BOOTCOMMAND "run bootcmd_nand"
52 /* Extra env settings (including the target-defined ones if any) */
53 #define CONFIG_EXTRA_ENV_SETTINGS \
54 PCM052_EXTRA_ENV_SETTINGS \
56 "fdt_high=0xffffffff\0" \
57 "initrd_high=0xffffffff\0" \
58 "blimg_file=u-boot.vyb\0" \
59 "blimg_addr=0x81000000\0" \
60 "kernel_file=zImage\0" \
61 "kernel_addr=0x82000000\0" \
62 "fdt_file=zImage.dtb\0" \
63 "fdt_addr=0x81000000\0" \
64 "ram_file=uRamdisk\0" \
65 "ram_addr=0x83000000\0" \
66 "filesys=rootfs.ubifs\0" \
67 "sys_addr=0x81000000\0" \
68 "tftploc=/path/to/tftp/directory/\0" \
69 "nfs_root=/path/to/nfs/root\0" \
70 "tftptimeout=1000\0" \
71 "tftptimeoutcountmax=1000000\0" \
72 "mtdparts=" CONFIG_MTDPARTS_DEFAULT "\0" \
73 "bootargs_base=setenv bootargs rw " \
74 " mem=" __stringify(CONFIG_PCM052_DDR_SIZE) "M " \
75 "console=ttyLP1,115200n8\0" \
76 "bootargs_sd=setenv bootargs ${bootargs} " \
77 "root=/dev/mmcblk0p2 rootwait\0" \
78 "bootargs_net=setenv bootargs ${bootargs} root=/dev/nfs ip=dhcp " \
79 "nfsroot=${serverip}:${nfs_root},v3,tcp\0" \
80 "bootargs_nand=setenv bootargs ${bootargs} " \
81 "ubi.mtd=5 rootfstype=ubifs root=ubi0:rootfs\0" \
82 "bootargs_ram=setenv bootargs ${bootargs} " \
83 "root=/dev/ram rw initrd=${ram_addr}\0" \
84 "bootargs_mtd=setenv bootargs ${bootargs} ${mtdparts}\0" \
85 "bootcmd_sd=run bootargs_base bootargs_sd bootargs_mtd; " \
86 "fatload mmc 0:1 ${kernel_addr} ${kernel_file}; " \
87 "fatload mmc 0:1 ${fdt_addr} ${fdt_file}; " \
88 "bootz ${kernel_addr} - ${fdt_addr}\0" \
89 "bootcmd_net=run bootargs_base bootargs_net bootargs_mtd; " \
90 "tftpboot ${kernel_addr} ${tftpdir}${kernel_file}; " \
91 "tftpboot ${fdt_addr} ${tftpdir}${fdt_file}; " \
92 "bootz ${kernel_addr} - ${fdt_addr}\0" \
93 "bootcmd_nand=run bootargs_base bootargs_nand bootargs_mtd; " \
94 "nand read ${fdt_addr} dtb; " \
95 "nand read ${kernel_addr} kernel; " \
96 "bootz ${kernel_addr} - ${fdt_addr}\0" \
97 "bootcmd_ram=run bootargs_base bootargs_ram bootargs_mtd; " \
98 "nand read ${fdt_addr} dtb; " \
99 "nand read ${kernel_addr} kernel; " \
100 "nand read ${ram_addr} root; " \
101 "bootz ${kernel_addr} ${ram_addr} ${fdt_addr}\0" \
102 "update_bootloader_from_tftp=" PCM052_NET_INIT \
103 "if tftp ${blimg_addr} "\
104 "${tftpdir}${blimg_file}; then " \
105 "mtdparts default; " \
106 "nand erase.part bootloader; " \
107 "nand write ${blimg_addr} bootloader ${filesize}; fi\0" \
108 "update_kernel_from_sd=if fatload mmc 0:2 ${kernel_addr} " \
110 "then mtdparts default; " \
111 "nand erase.part kernel; " \
112 "nand write ${kernel_addr} kernel ${filesize}; " \
113 "if fatload mmc 0:2 ${fdt_addr} ${fdt_file}; then " \
114 "nand erase.part dtb; " \
115 "nand write ${fdt_addr} dtb ${filesize}; fi\0" \
116 "update_kernel_from_tftp=" PCM052_NET_INIT \
117 "if tftp ${fdt_addr} ${tftpdir}${fdt_file}; " \
118 "then setenv fdtsize ${filesize}; " \
119 "if tftp ${kernel_addr} ${tftpdir}${kernel_file}; then " \
120 "mtdparts default; " \
121 "nand erase.part dtb; " \
122 "nand write ${fdt_addr} dtb ${fdtsize}; " \
123 "nand erase.part kernel; " \
124 "nand write ${kernel_addr} kernel ${filesize}; fi; fi\0" \
125 "update_rootfs_from_tftp=" PCM052_NET_INIT \
126 "if tftp ${sys_addr} ${tftpdir}${filesys}; " \
127 "then mtdparts default; " \
128 "nand erase.part root; " \
130 "ubi create rootfs; " \
131 "ubi write ${sys_addr} rootfs ${filesize}; fi\0" \
132 "update_ramdisk_from_tftp=" PCM052_NET_INIT \
133 "if tftp ${ram_addr} ${tftpdir}${ram_file}; " \
134 "then mtdparts default; " \
135 "nand erase.part root; " \
136 "nand write ${ram_addr} root ${filesize}; fi\0"
138 /* Miscellaneous configurable options */
140 /* Physical memory map */
141 #define PHYS_SDRAM (0x80000000)
142 #define PHYS_SDRAM_SIZE (CONFIG_PCM052_DDR_SIZE * SZ_1M)
144 #define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM
145 #define CONFIG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR
146 #define CONFIG_SYS_INIT_RAM_SIZE IRAM_SIZE
148 #define CONFIG_SYS_INIT_SP_OFFSET \
149 (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
150 #define CONFIG_SYS_INIT_SP_ADDR \
151 (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
153 /* environment organization */