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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | // SPDX-License-Identifier: GPL-2.0+ /* * UPL handoff parsing * * Copyright 2024 Google LLC * Written by Simon Glass <sjg@chromium.org> */ #define LOG_CATEGORY UCLASS_BOOTSTD #include <alist.h> #include <bloblist.h> #include <dm.h> #include <image.h> #include <mapmem.h> #include <serial.h> #include <spl.h> #include <upl.h> #include <video.h> #include <asm/global_data.h> #include <dm/read.h> #include <dm/uclass-internal.h> DECLARE_GLOBAL_DATA_PTR; struct upl s_upl; void upl_set_fit_addr(ulong fit) { struct upl *upl = &s_upl; upl->fit = fit; } void upl_set_fit_info(ulong fit, int conf_offset, ulong entry_addr) { struct upl *upl = &s_upl; upl->fit = fit; upl->conf_offset = conf_offset; log_debug("upl: add fit %lx conf %x\n", fit, conf_offset); } int _upl_add_image(int node, ulong load_addr, ulong size, const char *desc) { struct upl *upl = &s_upl; struct upl_image img; img.load = load_addr; img.size = size; img.offset = node; img.description = desc; if (!alist_add(&upl->image, img)) return -ENOMEM; log_debug("upl: add image %s at %lx size %lx\n", desc, load_addr, size); return 0; } static int write_serial(struct upl_serial *ser) { struct udevice *dev = gd->cur_serial_dev; struct serial_device_info info; struct memregion region; int ret; if (!dev) return log_msg_ret("ser", -ENOENT); ret = serial_getinfo(dev, &info); if (ret) return log_msg_ret("inf", ret); ser->compatible = ofnode_read_string(dev_ofnode(dev), "compatible"); ser->clock_frequency = info.clock; ser->current_speed = gd->baudrate; region.base = info.addr; region.size = info.size; alist_init_struct(&ser->reg, struct memregion); if (!alist_add(&ser->reg, region)) return -ENOMEM; ser->reg_io_shift = info.reg_shift; ser->reg_offset = info.reg_offset; ser->reg_io_width = info.reg_width; ser->virtual_reg = 0; ser->access_type = info.addr_space; return 0; } static int write_graphics(struct upl_graphics *gra) { struct video_uc_plat *plat; struct video_priv *priv; struct memregion region; struct udevice *dev; alist_init_struct(&gra->reg, struct memregion); uclass_find_first_device(UCLASS_VIDEO, &dev); if (!dev || !device_active(dev)) return log_msg_ret("vid", -ENOENT); plat = dev_get_uclass_plat(dev); region.base = plat->base; region.size = plat->size; if (!alist_add(&gra->reg, region)) return log_msg_ret("reg", -ENOMEM); priv = dev_get_uclass_priv(dev); gra->width = priv->xsize; gra->height = priv->ysize; gra->stride = priv->line_length; /* private field */ switch (priv->format) { case VIDEO_RGBA8888: case VIDEO_X8R8G8B8: gra->format = UPLGF_ARGB32; break; case VIDEO_X8B8G8R8: gra->format = UPLGF_ABGR32; break; case VIDEO_X2R10G10B10: log_debug("device '%s': VIDEO_X2R10G10B10 not supported\n", dev->name); return log_msg_ret("for", -EPROTO); case VIDEO_UNKNOWN: log_debug("device '%s': Unknown video format\n", dev->name); return log_msg_ret("for", -EPROTO); } return 0; } int spl_write_upl_handoff(struct spl_image_info *spl_image) { struct upl *upl = &s_upl; struct abuf buf; ofnode root; void *ptr; int ret; log_debug("UPL: Writing handoff - image_count=%d\n", upl->image.count); upl->addr_cells = IS_ENABLED(CONFIG_PHYS_64BIT) ? 2 : 1; upl->size_cells = IS_ENABLED(CONFIG_PHYS_64BIT) ? 2 : 1; upl->bootmode = UPLBM_DEFAULT; ret = write_serial(&upl->serial); if (ret) return log_msg_ret("ser", ret); ret = write_graphics(&upl->graphics); if (ret && ret != -ENOENT) return log_msg_ret("gra", ret); root = ofnode_root(); ret = upl_write_handoff(upl, root, true); if (ret) return log_msg_ret("wr", ret); ret = oftree_to_fdt(oftree_default(), &buf); if (ret) return log_msg_ret("fdt", ret); log_debug("FDT size %zx\n", abuf_size(&buf)); ptr = bloblist_add(BLOBLISTT_CONTROL_FDT, abuf_size(&buf), 0); if (!ptr) return log_msg_ret("blo", -ENOENT); memcpy(ptr, abuf_data(&buf), abuf_size(&buf)); return 0; } void spl_upl_init(void) { upl_init(&s_upl); } |