4218456b3f
Enable the various features needed in VPL, by adding Kconfig options. Update the defconfig for sandbox_vpl so that the build for each phase includes what is needed. Drop LZMA for now and make sure partition support is omitted in SPL, since it is not needed. Signed-off-by: Simon Glass <sjg@chromium.org>
94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Verified Boot for Embedded (VBE) loading firmware phases
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*
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* Copyright 2022 Google LLC
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#define LOG_CATEGORY LOGC_BOOT
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#include <common.h>
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#include <dm.h>
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#include <bootflow.h>
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#include <vbe.h>
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#include <version_string.h>
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#include <dm/device-internal.h>
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#include "vbe_simple.h"
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int vbe_simple_fixup_node(ofnode node, struct simple_state *state)
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{
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const char *version, *str;
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int ret;
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version = strdup(state->fw_version);
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if (!version)
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return log_msg_ret("dup", -ENOMEM);
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ret = ofnode_write_string(node, "cur-version", version);
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if (ret)
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return log_msg_ret("ver", ret);
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ret = ofnode_write_u32(node, "cur-vernum", state->fw_vernum);
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if (ret)
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return log_msg_ret("num", ret);
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/* Drop the 'U-Boot ' at the start */
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str = version_string;
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if (!strncmp("U-Boot ", str, 7))
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str += 7;
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ret = ofnode_write_string(node, "bootloader-version", str);
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if (ret)
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return log_msg_ret("bl", ret);
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return 0;
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}
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/**
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* bootmeth_vbe_simple_ft_fixup() - Write out all VBE simple data to the DT
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*
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* @ctx: Context for event
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* @event: Event to process
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* @return 0 if OK, -ve on error
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*/
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static int bootmeth_vbe_simple_ft_fixup(void *ctx, struct event *event)
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{
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oftree tree = event->data.ft_fixup.tree;
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struct udevice *dev;
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/*
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* Ideally we would have driver model support for fixups, but that does
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* not exist yet. It is a step too far to try to do this before VBE is
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* in place.
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*/
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for (vbe_find_first_device(&dev); dev; vbe_find_next_device(&dev)) {
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struct simple_state state;
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ofnode node, subnode;
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int ret;
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if (strcmp("vbe_simple", dev->driver->name))
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continue;
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/* Check if there is a node to fix up */
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node = oftree_path(tree, "/chosen/fwupd");
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if (!ofnode_valid(node))
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continue;
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subnode = ofnode_find_subnode(node, dev->name);
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if (!ofnode_valid(subnode))
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continue;
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log_debug("Fixing up: %s\n", dev->name);
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ret = device_probe(dev);
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if (ret)
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return log_msg_ret("probe", ret);
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ret = vbe_simple_read_state(dev, &state);
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if (ret)
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return log_msg_ret("read", ret);
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ret = vbe_simple_fixup_node(subnode, &state);
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if (ret)
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return log_msg_ret("fix", ret);
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}
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return 0;
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}
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EVENT_SPY(EVT_FT_FIXUP, bootmeth_vbe_simple_ft_fixup);
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