3 * NVIDIA Corporation <www.nvidia.com>
5 * Copyright 2014 Red Hat, Inc.
7 * SPDX-License-Identifier: GPL-2.0+
10 #ifndef _CONFIG_CMD_DISTRO_BOOTCMD_H
11 #define _CONFIG_CMD_DISTRO_BOOTCMD_H
14 * A note on error handling: It is possible for BOOT_TARGET_DEVICES to
15 * reference a device that is not enabled in the U-Boot configuration, e.g.
16 * it may include MMC in the list without CONFIG_CMD_MMC being enabled. Given
17 * that BOOT_TARGET_DEVICES is a macro that's expanded by the C pre-processor
18 * at compile time, it's not possible to detect and report such problems via
19 * a simple #ifdef/#error combination. Still, the code needs to report errors.
20 * The best way I've found to do this is to make BOOT_TARGET_DEVICES expand to
21 * reference a non-existent symbol, and have the name of that symbol encode
22 * the error message. Consequently, this file contains references to e.g.
23 * BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC. Given the
24 * prevalence of capitals here, this looks like a pre-processor macro and
25 * hence seems like it should be all capitals, but it's really an error
26 * message that includes some other pre-processor symbols in the text.
29 /* We need the part command */
30 #define CONFIG_PARTITION_UUIDS
31 #define CONFIG_CMD_PART
33 #define BOOTENV_SHARED_BLKDEV_BODY(devtypel) \
34 "if " #devtypel " dev ${devnum}; then " \
35 "setenv devtype " #devtypel "; " \
36 "run scan_dev_for_boot_part; " \
39 #define BOOTENV_SHARED_BLKDEV(devtypel) \
41 BOOTENV_SHARED_BLKDEV_BODY(devtypel)
43 #define BOOTENV_DEV_BLKDEV(devtypeu, devtypel, instance) \
44 "bootcmd_" #devtypel #instance "=" \
45 "setenv devnum " #instance "; " \
46 "run " #devtypel "_boot\0"
48 #define BOOTENV_DEV_NAME_BLKDEV(devtypeu, devtypel, instance) \
49 #devtypel #instance " "
52 #define BOOTENV_SHARED_HOST BOOTENV_SHARED_BLKDEV(host)
53 #define BOOTENV_DEV_HOST BOOTENV_DEV_BLKDEV
54 #define BOOTENV_DEV_NAME_HOST BOOTENV_DEV_NAME_BLKDEV
56 #define BOOTENV_SHARED_HOST
57 #define BOOTENV_DEV_HOST \
58 BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX
59 #define BOOTENV_DEV_NAME_HOST \
60 BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX
64 #define BOOTENV_SHARED_MMC BOOTENV_SHARED_BLKDEV(mmc)
65 #define BOOTENV_DEV_MMC BOOTENV_DEV_BLKDEV
66 #define BOOTENV_DEV_NAME_MMC BOOTENV_DEV_NAME_BLKDEV
68 #define BOOTENV_SHARED_MMC
69 #define BOOTENV_DEV_MMC \
70 BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC
71 #define BOOTENV_DEV_NAME_MMC \
72 BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC
75 #ifdef CONFIG_CMD_UBIFS
76 #define BOOTENV_SHARED_UBIFS \
78 "if ubi part UBI && ubifsmount ubi${devnum}:boot; then " \
79 "setenv devtype ubi; " \
80 "setenv bootpart 0; " \
81 "run scan_dev_for_boot; " \
83 #define BOOTENV_DEV_UBIFS BOOTENV_DEV_BLKDEV
84 #define BOOTENV_DEV_NAME_UBIFS BOOTENV_DEV_NAME_BLKDEV
86 #define BOOTENV_SHARED_UBIFS
87 #define BOOTENV_DEV_UBIFS \
88 BOOT_TARGET_DEVICES_references_UBIFS_without_CONFIG_CMD_UBIFS
89 #define BOOTENV_DEV_NAME_UBIFS \
90 BOOT_TARGET_DEVICES_references_UBIFS_without_CONFIG_CMD_UBIFS
93 #ifdef CONFIG_CMD_SATA
94 #define BOOTENV_SHARED_SATA BOOTENV_SHARED_BLKDEV(sata)
95 #define BOOTENV_DEV_SATA BOOTENV_DEV_BLKDEV
96 #define BOOTENV_DEV_NAME_SATA BOOTENV_DEV_NAME_BLKDEV
98 #define BOOTENV_SHARED_SATA
99 #define BOOTENV_DEV_SATA \
100 BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA
101 #define BOOTENV_DEV_NAME_SATA \
102 BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA
105 #ifdef CONFIG_CMD_SCSI
106 #define BOOTENV_RUN_SCSI_INIT "run scsi_init; "
107 #define BOOTENV_SET_SCSI_NEED_INIT "setenv scsi_need_init; "
108 #define BOOTENV_SHARED_SCSI \
110 "if ${scsi_need_init}; then " \
111 "setenv scsi_need_init false; " \
116 BOOTENV_RUN_SCSI_INIT \
117 BOOTENV_SHARED_BLKDEV_BODY(scsi)
118 #define BOOTENV_DEV_SCSI BOOTENV_DEV_BLKDEV
119 #define BOOTENV_DEV_NAME_SCSI BOOTENV_DEV_NAME_BLKDEV
121 #define BOOTENV_RUN_SCSI_INIT
122 #define BOOTENV_SET_SCSI_NEED_INIT
123 #define BOOTENV_SHARED_SCSI
124 #define BOOTENV_DEV_SCSI \
125 BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_CMD_SCSI
126 #define BOOTENV_DEV_NAME_SCSI \
127 BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_CMD_SCSI
130 #ifdef CONFIG_CMD_IDE
131 #define BOOTENV_SHARED_IDE BOOTENV_SHARED_BLKDEV(ide)
132 #define BOOTENV_DEV_IDE BOOTENV_DEV_BLKDEV
133 #define BOOTENV_DEV_NAME_IDE BOOTENV_DEV_NAME_BLKDEV
135 #define BOOTENV_SHARED_IDE
136 #define BOOTENV_DEV_IDE \
137 BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE
138 #define BOOTENV_DEV_NAME_IDE \
139 BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE
142 #ifdef CONFIG_CMD_USB
143 #define BOOTENV_RUN_NET_USB_START "run boot_net_usb_start; "
144 #define BOOTENV_SHARED_USB \
145 "boot_net_usb_start=usb start\0" \
148 BOOTENV_SHARED_BLKDEV_BODY(usb)
149 #define BOOTENV_DEV_USB BOOTENV_DEV_BLKDEV
150 #define BOOTENV_DEV_NAME_USB BOOTENV_DEV_NAME_BLKDEV
152 #define BOOTENV_RUN_NET_USB_START
153 #define BOOTENV_SHARED_USB
154 #define BOOTENV_DEV_USB \
155 BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
156 #define BOOTENV_DEV_NAME_USB \
157 BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
160 #if defined(CONFIG_CMD_DHCP)
161 #define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \
163 BOOTENV_RUN_NET_USB_START \
164 "if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \
165 "source ${scriptaddr}; " \
167 #define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \
170 #define BOOTENV_DEV_DHCP \
171 BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
172 #define BOOTENV_DEV_NAME_DHCP \
173 BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
176 #if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE)
177 #define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \
179 BOOTENV_RUN_NET_USB_START \
181 "if pxe get; then " \
184 #define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \
187 #define BOOTENV_DEV_PXE \
188 BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
189 #define BOOTENV_DEV_NAME_PXE \
190 BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
193 #define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \
194 BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance)
195 #define BOOTENV_BOOT_TARGETS \
196 "boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0"
198 #define BOOTENV_DEV(devtypeu, devtypel, instance) \
199 BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance)
201 BOOTENV_SHARED_HOST \
204 BOOTENV_SHARED_SATA \
205 BOOTENV_SHARED_SCSI \
207 BOOTENV_SHARED_UBIFS \
208 "boot_prefixes=/ /boot/\0" \
209 "boot_scripts=boot.scr.uimg boot.scr\0" \
210 "boot_script_dhcp=boot.scr.uimg\0" \
211 BOOTENV_BOOT_TARGETS \
214 "sysboot ${devtype} ${devnum}:${distro_bootpart} any " \
215 "${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \
217 "scan_dev_for_extlinux=" \
218 "if test -e ${devtype} " \
219 "${devnum}:${distro_bootpart} " \
220 "${prefix}extlinux/extlinux.conf; then " \
221 "echo Found ${prefix}extlinux/extlinux.conf; " \
222 "run boot_extlinux; " \
223 "echo SCRIPT FAILED: continuing...; " \
227 "load ${devtype} ${devnum}:${distro_bootpart} " \
228 "${scriptaddr} ${prefix}${script}; " \
229 "source ${scriptaddr}\0" \
231 "scan_dev_for_scripts=" \
232 "for script in ${boot_scripts}; do " \
233 "if test -e ${devtype} " \
234 "${devnum}:${distro_bootpart} " \
235 "${prefix}${script}; then " \
236 "echo Found U-Boot script " \
237 "${prefix}${script}; " \
238 "run boot_a_script; " \
239 "echo SCRIPT FAILED: continuing...; " \
243 "scan_dev_for_boot=" \
244 "echo Scanning ${devtype} " \
245 "${devnum}:${distro_bootpart}...; " \
246 "for prefix in ${boot_prefixes}; do " \
247 "run scan_dev_for_extlinux; " \
248 "run scan_dev_for_scripts; " \
251 "scan_dev_for_boot_part=" \
252 "part list ${devtype} ${devnum} -bootable devplist; " \
253 "env exists devplist || setenv devplist 1; " \
254 "for distro_bootpart in ${devplist}; do " \
255 "if fstype ${devtype} " \
256 "${devnum}:${distro_bootpart} " \
257 "bootfstype; then " \
258 "run scan_dev_for_boot; " \
262 BOOT_TARGET_DEVICES(BOOTENV_DEV) \
264 "distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT \
265 "for target in ${boot_targets}; do " \
266 "run bootcmd_${target}; " \
269 #ifndef CONFIG_BOOTCOMMAND
270 #define CONFIG_BOOTCOMMAND "run distro_bootcmd"
273 #endif /* _CONFIG_CMD_DISTRO_BOOTCMD_H */