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ae95160278
This version is patched so that: * ELF and API features are enabled. * The default environment is trimmed to just what's needed to boot. * The saveenv command writes to the file u-boot.env on the FAT partition. * The DTB file name is chosen based on the board model and passed to ubldr using the fdtfile env variable. ubldr loads the DTB from /boot/dtb/ on the FreeBSD partition. * By default, it loads ELF ubldr from file ubldr on the FAT partition to address 0x42000000, and launches it. For information about running FreeBSD on Allwinner SoCs, see https://wiki.freebsd.org/FreeBSD/arm/Allwinner Differential Revision: https://reviews.freebsd.org/D2874 Reviewed by: garga Approved by: garga
29 lines
792 B
C
29 lines
792 B
C
--- common/cmd_elf.c.orig 2015-04-13 14:53:03 UTC
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+++ common/cmd_elf.c
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@@ -35,22 +35,12 @@ static unsigned long do_bootelf_exec(ulo
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unsigned long ret;
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/*
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- * QNX images require the data cache is disabled.
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- * Data cache is already flushed, so just turn it off.
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- */
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- int dcache = dcache_status();
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- if (dcache)
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- dcache_disable();
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-
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- /*
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- * pass address parameter as argv[0] (aka command name),
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- * and all remaining args
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+ * FreeBSD wants the caches enabled while ubldr runs, and as of r276397
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+ * the kernel can tolerate being entered with internal (but not external
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+ * PL310) caches enabled on armv6/7 systems. So don't disable caches
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+ * here, just launch the program directly.
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*/
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ret = entry(argc, argv);
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-
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- if (dcache)
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- dcache_enable();
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-
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return ret;
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}
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