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 /* Enable passing of ATAGs */
16 #define CONFIG_CMDLINE_TAG
19 #define CONFIG_SYS_NAND_ONFI_DETECTION
21 #define CONFIG_SYS_MAX_NAND_DEVICE 1
23 /* We boot from the gfxRAM area of the OCRAM. */
24 #define CONFIG_BOARD_SIZE_LIMIT 520192
26 /* if no target-specific extra environment settings were defined by the
27 target, define an empty one */
28 #ifndef PCM052_EXTRA_ENV_SETTINGS
29 #define PCM052_EXTRA_ENV_SETTINGS
32 /* if no target-specific boot command was defined by the target,
33 define an empty one */
34 #ifndef PCM052_BOOTCOMMAND
35 #define PCM052_BOOTCOMMAND
38 /* if no target-specific extra environment settings were defined by the
39 target, define an empty one */
40 #ifndef PCM052_NET_INIT
41 #define PCM052_NET_INIT
44 /* boot command, including the target-defined one if any */
45 #define CONFIG_BOOTCOMMAND PCM052_BOOTCOMMAND "run bootcmd_nand"
47 /* Extra env settings (including the target-defined ones if any) */
48 #define CONFIG_EXTRA_ENV_SETTINGS \
49 PCM052_EXTRA_ENV_SETTINGS \
51 "fdt_high=0xffffffff\0" \
52 "initrd_high=0xffffffff\0" \
53 "blimg_file=u-boot.vyb\0" \
54 "blimg_addr=0x81000000\0" \
55 "kernel_file=zImage\0" \
56 "kernel_addr=0x82000000\0" \
57 "fdt_file=zImage.dtb\0" \
58 "fdt_addr=0x81000000\0" \
59 "ram_file=uRamdisk\0" \
60 "ram_addr=0x83000000\0" \
61 "filesys=rootfs.ubifs\0" \
62 "sys_addr=0x81000000\0" \
63 "tftploc=/path/to/tftp/directory/\0" \
64 "nfs_root=/path/to/nfs/root\0" \
65 "tftptimeout=1000\0" \
66 "tftptimeoutcountmax=1000000\0" \
67 "mtdparts=" CONFIG_MTDPARTS_DEFAULT "\0" \
68 "bootargs_base=setenv bootargs rw " \
69 " mem=" __stringify(CONFIG_PCM052_DDR_SIZE) "M " \
70 "console=ttyLP1,115200n8\0" \
71 "bootargs_sd=setenv bootargs ${bootargs} " \
72 "root=/dev/mmcblk0p2 rootwait\0" \
73 "bootargs_net=setenv bootargs ${bootargs} root=/dev/nfs ip=dhcp " \
74 "nfsroot=${serverip}:${nfs_root},v3,tcp\0" \
75 "bootargs_nand=setenv bootargs ${bootargs} " \
76 "ubi.mtd=5 rootfstype=ubifs root=ubi0:rootfs\0" \
77 "bootargs_ram=setenv bootargs ${bootargs} " \
78 "root=/dev/ram rw initrd=${ram_addr}\0" \
79 "bootargs_mtd=setenv bootargs ${bootargs} ${mtdparts}\0" \
80 "bootcmd_sd=run bootargs_base bootargs_sd bootargs_mtd; " \
81 "fatload mmc 0:1 ${kernel_addr} ${kernel_file}; " \
82 "fatload mmc 0:1 ${fdt_addr} ${fdt_file}; " \
83 "bootz ${kernel_addr} - ${fdt_addr}\0" \
84 "bootcmd_net=run bootargs_base bootargs_net bootargs_mtd; " \
85 "tftpboot ${kernel_addr} ${tftpdir}${kernel_file}; " \
86 "tftpboot ${fdt_addr} ${tftpdir}${fdt_file}; " \
87 "bootz ${kernel_addr} - ${fdt_addr}\0" \
88 "bootcmd_nand=run bootargs_base bootargs_nand bootargs_mtd; " \
89 "nand read ${fdt_addr} dtb; " \
90 "nand read ${kernel_addr} kernel; " \
91 "bootz ${kernel_addr} - ${fdt_addr}\0" \
92 "bootcmd_ram=run bootargs_base bootargs_ram bootargs_mtd; " \
93 "nand read ${fdt_addr} dtb; " \
94 "nand read ${kernel_addr} kernel; " \
95 "nand read ${ram_addr} root; " \
96 "bootz ${kernel_addr} ${ram_addr} ${fdt_addr}\0" \
97 "update_bootloader_from_tftp=" PCM052_NET_INIT \
98 "if tftp ${blimg_addr} "\
99 "${tftpdir}${blimg_file}; then " \
100 "mtdparts default; " \
101 "nand erase.part bootloader; " \
102 "nand write ${blimg_addr} bootloader ${filesize}; fi\0" \
103 "update_kernel_from_sd=if fatload mmc 0:2 ${kernel_addr} " \
105 "then mtdparts default; " \
106 "nand erase.part kernel; " \
107 "nand write ${kernel_addr} kernel ${filesize}; " \
108 "if fatload mmc 0:2 ${fdt_addr} ${fdt_file}; then " \
109 "nand erase.part dtb; " \
110 "nand write ${fdt_addr} dtb ${filesize}; fi\0" \
111 "update_kernel_from_tftp=" PCM052_NET_INIT \
112 "if tftp ${fdt_addr} ${tftpdir}${fdt_file}; " \
113 "then setenv fdtsize ${filesize}; " \
114 "if tftp ${kernel_addr} ${tftpdir}${kernel_file}; then " \
115 "mtdparts default; " \
116 "nand erase.part dtb; " \
117 "nand write ${fdt_addr} dtb ${fdtsize}; " \
118 "nand erase.part kernel; " \
119 "nand write ${kernel_addr} kernel ${filesize}; fi; fi\0" \
120 "update_rootfs_from_tftp=" PCM052_NET_INIT \
121 "if tftp ${sys_addr} ${tftpdir}${filesys}; " \
122 "then mtdparts default; " \
123 "nand erase.part root; " \
125 "ubi create rootfs; " \
126 "ubi write ${sys_addr} rootfs ${filesize}; fi\0" \
127 "update_ramdisk_from_tftp=" PCM052_NET_INIT \
128 "if tftp ${ram_addr} ${tftpdir}${ram_file}; " \
129 "then mtdparts default; " \
130 "nand erase.part root; " \
131 "nand write ${ram_addr} root ${filesize}; fi\0"
133 /* Miscellaneous configurable options */
135 /* Physical memory map */
136 #define PHYS_SDRAM (0x80000000)
137 #define PHYS_SDRAM_SIZE (CONFIG_PCM052_DDR_SIZE * SZ_1M)
139 #define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM
140 #define CONFIG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR
141 #define CONFIG_SYS_INIT_RAM_SIZE IRAM_SIZE
143 #define CONFIG_SYS_INIT_SP_OFFSET \
144 (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
145 #define CONFIG_SYS_INIT_SP_ADDR \
146 (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
148 /* environment organization */