276 lines
6.6 KiB
C
276 lines
6.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2011 OMICRON electronics GmbH
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*
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* based on drivers/mtd/nand/raw/nand_spl_load.c
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*
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* Copyright (C) 2011
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* Heiko Schocher, DENX Software Engineering, hs@denx.de.
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*/
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#include <common.h>
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#include <image.h>
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#include <log.h>
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#include <spi.h>
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#include <spi_flash.h>
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#include <errno.h>
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#include <spl.h>
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#include <dm.h>
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#include <asm/global_data.h>
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#ifdef CONFIG_AUTO_CALCULATE_PART_CONFIG
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#include <generated/image_cfg_part_config.h>
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#endif
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#ifdef CONFIG_VIDEO_ARTINCHIP
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#include <cpu_func.h>
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#include <artinchip/artinchip_fb.h>
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#include <artinchip_ve.h>
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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static ulong spl_spi_fit_read(struct spl_load_info *load, ulong sector,
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ulong count, void *buf)
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{
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struct spi_flash *flash = load->dev;
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ulong ret;
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ret = spi_flash_read(flash, sector, count, buf);
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if (!ret)
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return count;
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else
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return 0;
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}
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unsigned int __weak spl_spi_get_uboot_offs(struct spi_flash *flash)
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{
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return CONFIG_SYS_SPI_U_BOOT_OFFS;
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}
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#ifdef CONFIG_SPL_OS_BOOT
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#ifdef CONFIG_VIDEO_ARTINCHIP
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static int spi_flash_read_logo(struct spi_flash *flash, const char *name)
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{
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unsigned char *fit, *dst;
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size_t data_size;
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const void *data;
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struct udevice *dev;
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int noffset, ret;
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ret = uclass_first_device(UCLASS_VIDEO, &dev);
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if (ret) {
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pr_err("Failed to find aicfb udevice\n");
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return ret;
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}
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fit = memalign(DECODE_ALIGN, LOGO_MAX_SIZE);
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if (!fit) {
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pr_err("Failed to malloc for logo image!\n");
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return -ENOMEM;
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}
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spi_flash_read(flash, CONFIG_LOGO_PART_OFFSET, LOGO_MAX_SIZE,
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(void *)fit);
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noffset = fit_image_get_node(fit, name);
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if (noffset < 0) {
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printf("Failed to get %s node\n", name);
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ret = -EINVAL;
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goto out;
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}
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/* Load specific logo image */
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ret = fit_image_get_data(fit, noffset, &data, &data_size);
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if (ret < 0) {
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pr_err("Failed to get data\n");
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ret = -EINVAL;
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goto out;
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}
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dst = memalign(DECODE_ALIGN, data_size);
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if (!dst) {
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pr_err("Failed to alloc dst buf\n");
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ret = -ENOMEM;
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goto out;
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}
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memcpy(dst, data, data_size);
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flush_dcache_range((uintptr_t)dst, (uintptr_t)dst + data_size);
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if (dst[1] == 'P' || dst[2] == 'N' || dst[3] == 'G')
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aic_png_decode(dst, data_size);
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else
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pr_err("not support logo file format, need a png image\n");
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out:
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aicfb_update_ui_layer(dev);
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aicfb_startup_panel(dev);
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if (fit)
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free(fit);
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if (dst)
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free(dst);
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return ret;
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}
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#endif
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/*
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* Load the kernel, check for a valid header we can parse, and if found load
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* the kernel and then device tree.
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*/
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static int spi_load_image_os(struct spl_image_info *spl_image,
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struct spi_flash *flash,
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struct image_header *header)
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{
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int err;
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spi_flash_read(flash, CONFIG_SYS_SPI_ARGS_OFFS,
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CONFIG_SYS_SPI_ARGS_SIZE,
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(void *)CONFIG_SYS_SPL_ARGS_ADDR);
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spi_flash_read(flash, CONFIG_SYS_SPI_KERNEL_OFFS, sizeof(*header),
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(void *)header);
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if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
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image_get_magic(header) == FDT_MAGIC) {
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struct spl_load_info load;
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debug("Found FIT\n");
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load.dev = flash;
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load.priv = NULL;
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load.filename = NULL;
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load.bl_len = 1;
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load.read = spl_spi_fit_read;
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return spl_load_simple_fit(spl_image, &load,
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CONFIG_SYS_SPI_KERNEL_OFFS, header);
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} else {
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err = spl_parse_image_header(spl_image, header);
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if (err)
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return err;
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spi_flash_read(flash, CONFIG_SYS_SPI_KERNEL_OFFS,
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spl_image->size, (void *)spl_image->load_addr);
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}
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return 0;
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}
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#endif
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/*
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* The main entry for SPI booting. It's necessary that SDRAM is already
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* configured and available since this code loads the main U-Boot image
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* from SPI into SDRAM and starts it from there.
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*/
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static int spl_spi_load_image(struct spl_image_info *spl_image,
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struct spl_boot_device *bootdev)
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{
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int err = 0;
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unsigned int payload_offs;
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struct spi_flash *flash;
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struct image_header *header;
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char num_bus = 0, cur_bus = 0;
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spl_image->flags |= SPL_COPY_PAYLOAD_ONLY;
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/*
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* Load U-Boot image from SPI flash into RAM
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* In DM mode: defaults speed and mode will be
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* taken from DT when available
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*/
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flash = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
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CONFIG_SF_DEFAULT_CS,
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CONFIG_SF_DEFAULT_SPEED,
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CONFIG_SF_DEFAULT_MODE);
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if (!flash) {
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num_bus = uclass_id_count(UCLASS_SPI);
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for (cur_bus = 0; !flash; cur_bus++) {
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if (cur_bus == CONFIG_SF_DEFAULT_BUS)
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continue;
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flash = spi_flash_probe(cur_bus,
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CONFIG_SF_DEFAULT_CS,
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CONFIG_SF_DEFAULT_SPEED,
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CONFIG_SF_DEFAULT_MODE);
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if (cur_bus >= num_bus) {
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puts("SPI probe failed.\n");
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return -ENODEV;
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}
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}
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}
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payload_offs = spl_spi_get_uboot_offs(flash);
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header = spl_get_load_buffer(-sizeof(*header), sizeof(*header));
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#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
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payload_offs = fdtdec_get_config_int(gd->fdt_blob,
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"u-boot,spl-payload-offset",
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payload_offs);
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#endif
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#ifdef CONFIG_SPL_OS_BOOT
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if (!spl_start_uboot()) {
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err = spi_load_image_os(spl_image, flash, header);
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/* Double check after linux image is loaded. */
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if (!err && !spl_start_uboot()) {
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#ifdef CONFIG_VIDEO_ARTINCHIP
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spi_flash_read_logo(flash, "boot");
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#endif
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return 0;
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}
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}
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#endif
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{
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/* Load u-boot, mkimage header is 64 bytes. */
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err = spi_flash_read(flash, payload_offs, sizeof(*header),
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(void *)header);
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if (err) {
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debug("%s: Failed to read from SPI flash (err=%d)\n",
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__func__, err);
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return err;
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}
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if (IS_ENABLED(CONFIG_SPL_LOAD_FIT_FULL) &&
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image_get_magic(header) == FDT_MAGIC) {
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err = spi_flash_read(flash, payload_offs,
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roundup(fdt_totalsize(header), 4),
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(void *)CONFIG_SYS_LOAD_ADDR);
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if (err)
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return err;
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err = spl_parse_image_header(spl_image,
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(struct image_header *)CONFIG_SYS_LOAD_ADDR);
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} else if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
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image_get_magic(header) == FDT_MAGIC) {
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struct spl_load_info load;
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debug("Found FIT\n");
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load.dev = flash;
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load.priv = NULL;
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load.filename = NULL;
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load.bl_len = 1;
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load.read = spl_spi_fit_read;
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err = spl_load_simple_fit(spl_image, &load,
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payload_offs,
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header);
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} else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
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struct spl_load_info load;
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load.dev = flash;
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load.priv = NULL;
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load.filename = NULL;
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load.bl_len = 1;
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load.read = spl_spi_fit_read;
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err = spl_load_imx_container(spl_image, &load,
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payload_offs);
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} else {
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err = spl_parse_image_header(spl_image, header);
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if (err)
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return err;
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err = spi_flash_read(flash, payload_offs + spl_image->offset,
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spl_image->size,
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(void *)spl_image->load_addr);
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}
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}
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return err;
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}
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/* Use priorty 1 so that boards can override this */
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SPL_LOAD_IMAGE_METHOD("SPI", 1, BOOT_DEVICE_SPI, spl_spi_load_image);
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