1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright 2019 Google LLC
7 #include <binman_sym.h>
12 #include <spi_flash.h>
13 #include <asm/fast_spi.h>
15 #include <asm/arch/cpu.h>
16 #include <asm/arch/iomap.h>
17 #include <dm/device-internal.h>
18 #include <dm/uclass-internal.h>
20 /* This reads the next phase from mapped SPI flash */
21 static int rom_load_image(struct spl_image_info *spl_image,
22 struct spl_boot_device *bootdev)
24 ulong spl_pos = spl_get_image_pos();
25 ulong spl_size = spl_get_image_size();
32 spl_image->size = CONFIG_SYS_MONITOR_LEN; /* We don't know SPL size */
33 spl_image->entry_point = spl_phase() == PHASE_TPL ?
34 CONFIG_SPL_TEXT_BASE : CONFIG_SYS_TEXT_BASE;
35 spl_image->load_addr = spl_image->entry_point;
36 spl_image->os = IH_OS_U_BOOT;
37 spl_image->name = "U-Boot";
38 debug("Reading from mapped SPI %lx, size %lx", spl_pos, spl_size);
40 if (CONFIG_IS_ENABLED(SPI_FLASH_SUPPORT)) {
41 ret = uclass_find_first_device(UCLASS_SPI_FLASH, &dev);
43 return log_msg_ret("spi_flash", ret);
45 return log_msg_ret("spi_flash dev", -ENODEV);
46 ret = dm_spi_get_mmap(dev, &map_base, &map_size, &offset);
48 return log_msg_ret("mmap", ret);
50 ret = fast_spi_get_bios_mmap(PCH_DEV_SPI, &map_base, &map_size,
55 spl_pos += map_base & ~0xff000000;
56 debug(", base %lx, pos %lx\n", map_base, spl_pos);
57 bootstage_start(BOOTSTAGE_ID_ACCUM_MMAP_SPI, "mmap_spi");
58 memcpy((void *)spl_image->load_addr, (void *)spl_pos, spl_size);
59 cpu_flush_l1d_to_l2();
60 bootstage_accum(BOOTSTAGE_ID_ACCUM_MMAP_SPI);
64 SPL_LOAD_IMAGE_METHOD("Mapped SPI", 2, BOOT_DEVICE_SPI_MMAP, rom_load_image);
66 #if CONFIG_IS_ENABLED(SPI_FLASH_SUPPORT)
68 static int apl_flash_std_read(struct udevice *dev, u32 offset, size_t len,
71 struct spi_flash *flash = dev_get_uclass_priv(dev);
72 struct mtd_info *mtd = &flash->mtd;
75 return log_ret(mtd->_read(mtd, offset, len, &retlen, buf));
78 static int apl_flash_probe(struct udevice *dev)
80 return spi_flash_std_probe(dev);
84 * Manually set the parent of the SPI flash to SPI, since dtoc doesn't. We also
85 * need to allocate the parent_platdata since by the time this function is
86 * called device_bind() has already gone past that step.
88 static int apl_flash_bind(struct udevice *dev)
90 if (CONFIG_IS_ENABLED(OF_PLATDATA)) {
91 struct dm_spi_slave_platdata *plat;
95 ret = uclass_first_device_err(UCLASS_SPI, &spi);
100 plat = calloc(sizeof(*plat), 1);
103 dev->parent_platdata = plat;
109 static const struct dm_spi_flash_ops apl_flash_ops = {
110 .read = apl_flash_std_read,
113 static const struct udevice_id apl_flash_ids[] = {
114 { .compatible = "jedec,spi-nor" },
118 U_BOOT_DRIVER(winbond_w25q128fw) = {
119 .name = "winbond_w25q128fw",
120 .id = UCLASS_SPI_FLASH,
121 .of_match = apl_flash_ids,
122 .bind = apl_flash_bind,
123 .probe = apl_flash_probe,
124 .priv_auto_alloc_size = sizeof(struct spi_flash),
125 .ops = &apl_flash_ops,
128 /* This uses a SPI flash device to read the next phase */
129 static int spl_fast_spi_load_image(struct spl_image_info *spl_image,
130 struct spl_boot_device *bootdev)
132 ulong spl_pos = spl_get_image_pos();
133 ulong spl_size = spl_get_image_size();
137 ret = uclass_first_device_err(UCLASS_SPI_FLASH, &dev);
141 spl_image->size = CONFIG_SYS_MONITOR_LEN; /* We don't know SPL size */
142 spl_image->entry_point = spl_phase() == PHASE_TPL ?
143 CONFIG_SPL_TEXT_BASE : CONFIG_SYS_TEXT_BASE;
144 spl_image->load_addr = spl_image->entry_point;
145 spl_image->os = IH_OS_U_BOOT;
146 spl_image->name = "U-Boot";
147 spl_pos &= ~0xff000000;
148 debug("Reading from flash %lx, size %lx\n", spl_pos, spl_size);
149 ret = spi_flash_read_dm(dev, spl_pos, spl_size,
150 (void *)spl_image->load_addr);
151 cpu_flush_l1d_to_l2();
157 SPL_LOAD_IMAGE_METHOD("Fast SPI", 1, BOOT_DEVICE_FAST_SPI,
158 spl_fast_spi_load_image);
160 void board_boot_order(u32 *spl_boot_list)
162 bool use_spi_flash = IS_ENABLED(CONFIG_APL_BOOT_FROM_FAST_SPI_FLASH);
165 spl_boot_list[0] = BOOT_DEVICE_FAST_SPI;
166 spl_boot_list[1] = BOOT_DEVICE_SPI_MMAP;
168 spl_boot_list[0] = BOOT_DEVICE_SPI_MMAP;
169 spl_boot_list[1] = BOOT_DEVICE_FAST_SPI;
175 void board_boot_order(u32 *spl_boot_list)
177 spl_boot_list[0] = BOOT_DEVICE_SPI_MMAP;