From 6dca5e8ab5c1c896b9abf1f55e42428cb3709102 Mon Sep 17 00:00:00 2001 From: "Andrew F. Davis" Date: Fri, 7 Apr 2017 14:29:36 -0500 Subject: [PATCH] spl: net: Add FIT image support over network boot FIT support in the net boot case is much like the RAM boot case in that we load our image to "load_addr" and pass a dummy read function into "spl_load_simple_fit()". As the load address is no longer hard-coded to the final execution address, legacy image loading will require load_addr to be set correctly in the image header. Signed-off-by: Andrew F. Davis --- common/spl/spl_net.c | 34 +++++++++++++++++++++++++++++++--- 1 file changed, 31 insertions(+), 3 deletions(-) diff --git a/common/spl/spl_net.c b/common/spl/spl_net.c index 0fba0172ea..85fe508b17 100644 --- a/common/spl/spl_net.c +++ b/common/spl/spl_net.c @@ -11,19 +11,29 @@ #include #include #include +#include DECLARE_GLOBAL_DATA_PTR; #if defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT) +static ulong spl_net_load_read(struct spl_load_info *load, ulong sector, + ulong count, void *buf) +{ + debug("%s: sector %lx, count %lx, buf %lx\n", + __func__, sector, count, (ulong)buf); + memcpy(buf, (void *)(load_addr + sector), count); + return count; +} + static int spl_net_load_image(struct spl_image_info *spl_image, struct spl_boot_device *bootdev) { + struct image_header *header = (struct image_header *)load_addr; int rv; env_init(); env_relocate(); setenv("autoload", "yes"); - load_addr = CONFIG_SYS_TEXT_BASE - sizeof(struct image_header); rv = eth_initialize(); if (rv == 0) { printf("No Ethernet devices found\n"); @@ -36,8 +46,26 @@ static int spl_net_load_image(struct spl_image_info *spl_image, printf("Problem booting with BOOTP\n"); return rv; } - return spl_parse_image_header(spl_image, - (struct image_header *)load_addr); + + if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) && + image_get_magic(header) == FDT_MAGIC) { + struct spl_load_info load; + + debug("Found FIT\n"); + load.bl_len = 1; + load.read = spl_net_load_read; + rv = spl_load_simple_fit(spl_image, &load, 0, header); + } else { + debug("Legacy image\n"); + + rv = spl_parse_image_header(spl_image, header); + if (rv) + return rv; + + memcpy((void *)spl_image->load_addr, header, spl_image->size); + } + + return rv; } #endif -- 2.39.5