imx: add rom api support

i.MX8MN support loading images with rom api, so we implement reuse board_return_to_bootrom to let ROM loading images. Signed-off-by: Peng Fan <peng.fan@nxp.com>

imx: add rom api support
i.MX8MN support loading images with rom api, so we implement reuse board_return_to_bootrom to let ROM loading images. Signed-off-by: Peng Fan <peng.fan@nxp.com>
Peng Fan · Stefano Babic
1 parent a92c7b144f
Showing 4 changed files with 331 additions and 0 deletions Side-by-side Diff
arch/arm/include/asm/mach-imx/sys_proto.h
arch/arm/mach-imx/Kconfig
arch/arm/mach-imx/Makefile
arch/arm/mach-imx/spl_imx_romapi.c
@@ -106,6 +106,39 @@
  
 #endif /* CONFIG_MX6 */
  
+#ifdef CONFIG_IMX8M
+struct rom_api {
+	u16 ver;
+	u16 tag;
+	u32 reserved1;
+	u32 (*download_image)(u8 *dest, u32 offset, u32 size,  u32 xor);
+	u32 (*query_boot_infor)(u32 info_type, u32 *info, u32 xor);
+};
+
+enum boot_dev_type_e {
+	BT_DEV_TYPE_SD = 1,
+	BT_DEV_TYPE_MMC = 2,
+	BT_DEV_TYPE_NAND = 3,
+	BT_DEV_TYPE_FLEXSPINOR = 4,
+
+	BT_DEV_TYPE_USB = 0xE,
+	BT_DEV_TYPE_MEM_DEV = 0xF,
+
+	BT_DEV_TYPE_INVALID = 0xFF
+};
+
+#define QUERY_ROM_VER		1
+#define QUERY_BT_DEV		2
+#define QUERY_PAGE_SZ		3
+#define QUERY_IVT_OFF		4
+#define QUERY_BT_STAGE		5
+#define QUERY_IMG_OFF		6
+
+#define ROM_API_OKAY		0xF0
+
+extern struct rom_api *g_rom_api;
+#endif
+
 u32 get_nr_cpus(void);
 u32 get_cpu_rev(void);
 u32 get_cpu_speed_grade_hz(void);
@@ -109,4 +109,8 @@
 	  NXP does NOT recommend to perform this calibration at each boot. One
 	  shall perform it on a new PCB and then use those values to program
 	  the ddrmc_cr_setting on relevant board file.
+
+config SPL_IMX_ROMAPI_LOADADDR
+	hex "Default load address to load image through ROM API"
+	depends on IMX8MN
@@ -226,4 +226,6 @@
 obj-$(CONFIG_ARCH_MX7ULP) += mx7ulp/
 obj-$(CONFIG_IMX8M) += imx8m/
 obj-$(CONFIG_ARCH_IMX8) += imx8/
+
+obj-$(CONFIG_SPL_BOOTROM_SUPPORT) += spl_imx_romapi.o
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2019 NXP
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <image.h>
+#include <linux/libfdt.h>
+#include <spl.h>
+
+#include <asm/arch/sys_proto.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int is_boot_from_stream_device(u32 boot)
+{
+	u32 interface;
+
+	interface = boot >> 16;
+	if (interface >= BT_DEV_TYPE_USB)
+		return 1;
+
+	if (interface == BT_DEV_TYPE_MMC && (boot & 1))
+		return 1;
+
+	return 0;
+}
+
+static ulong spl_romapi_read_seekable(struct spl_load_info *load,
+				      ulong sector, ulong count,
+				      void *buf)
+{
+	u32 pagesize = *(u32 *)load->priv;
+	volatile gd_t *pgd = gd;
+	ulong byte = count * pagesize;
+	int ret;
+	u32 offset;
+
+	offset = sector * pagesize;
+
+	debug("ROM API load from 0x%x, size 0x%x\n", offset, (u32)byte);
+
+	ret = g_rom_api->download_image(buf, offset, byte,
+					((uintptr_t)buf) ^ offset ^ byte);
+	gd = pgd;
+
+	if (ret == ROM_API_OKAY)
+		return count;
+
+	printf("ROM API Failure when load 0x%x\n", offset);
+
+	return 0;
+}
+
+static int spl_romapi_load_image_seekable(struct spl_image_info *spl_image,
+					  struct spl_boot_device *bootdev,
+					  u32 rom_bt_dev)
+{
+	volatile gd_t *pgd = gd;
+	int ret;
+	u32 offset;
+	u32 pagesize, size;
+	struct image_header *header;
+	u32 image_offset;
+
+	ret = g_rom_api->query_boot_infor(QUERY_IVT_OFF, &offset,
+					  ((uintptr_t)&offset) ^ QUERY_IVT_OFF);
+	ret |= g_rom_api->query_boot_infor(QUERY_PAGE_SZ, &pagesize,
+					   ((uintptr_t)&pagesize) ^ QUERY_PAGE_SZ);
+	ret |= g_rom_api->query_boot_infor(QUERY_IMG_OFF, &image_offset,
+					   ((uintptr_t)&image_offset) ^ QUERY_IMG_OFF);
+
+	gd = pgd;
+
+	if (ret != ROM_API_OKAY) {
+		puts("ROMAPI: Failure query boot infor pagesize/offset\n");
+		return -1;
+	}
+
+	header = (struct image_header *)(CONFIG_SPL_IMX_ROMAPI_LOADADDR);
+
+	printf("image offset 0x%x, pagesize 0x%x, ivt offset 0x%x\n",
+	       image_offset, pagesize, offset);
+
+	if (((rom_bt_dev >> 16) & 0xff) ==  BT_DEV_TYPE_FLEXSPINOR)
+		offset = CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR * 512;
+	else
+		offset = image_offset +
+			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR * 512 - 0x8000;
+
+	size = ALIGN(sizeof(struct image_header), pagesize);
+	ret = g_rom_api->download_image((u8 *)header, offset, size,
+					((uintptr_t)header) ^ offset ^ size);
+	gd = pgd;
+
+	if (ret != ROM_API_OKAY) {
+		printf("ROMAPI: download failure offset 0x%x size 0x%x\n",
+		       offset, size);
+		return -1;
+	}
+
+	if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
+	    image_get_magic(header) == FDT_MAGIC) {
+		struct spl_load_info load;
+
+		memset(&load, 0, sizeof(load));
+		load.bl_len = pagesize;
+		load.read = spl_romapi_read_seekable;
+		load.priv = &pagesize;
+		return spl_load_simple_fit(spl_image, &load,
+					   offset / pagesize, header);
+	} else {
+		/* TODO */
+		puts("Can't support legacy image\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static ulong spl_ram_load_read(struct spl_load_info *load, ulong sector,
+			       ulong count, void *buf)
+{
+	memcpy(buf, (void *)(sector), count);
+
+	if (load->priv) {
+		ulong *p = (ulong *)load->priv;
+		ulong total = sector + count;
+
+		if (total > *p)
+			*p = total;
+	}
+
+	return count;
+}
+
+static ulong get_fit_image_size(void *fit)
+{
+	struct spl_image_info spl_image;
+	struct spl_load_info spl_load_info;
+	ulong last = (ulong)fit;
+
+	memset(&spl_load_info, 0, sizeof(spl_load_info));
+	spl_load_info.bl_len = 1;
+	spl_load_info.read = spl_ram_load_read;
+	spl_load_info.priv = &last;
+
+	spl_load_simple_fit(&spl_image, &spl_load_info,
+			    (uintptr_t)fit, fit);
+
+	return last - (ulong)fit;
+}
+
+u8 *search_fit_header(u8 *p, int size)
+{
+	int i;
+
+	for (i = 0; i < size; i += 4)
+		if (genimg_get_format(p + i) == IMAGE_FORMAT_FIT)
+			return p + i;
+
+	return NULL;
+}
+
+static int spl_romapi_load_image_stream(struct spl_image_info *spl_image,
+					struct spl_boot_device *bootdev)
+{
+	struct spl_load_info load;
+	volatile gd_t *pgd = gd;
+	u32 pagesize, pg;
+	int ret;
+	int i = 0;
+	u8 *p = (u8 *)CONFIG_SPL_IMX_ROMAPI_LOADADDR;
+	u8 *pfit = NULL;
+	int imagesize;
+	int total;
+
+	ret = g_rom_api->query_boot_infor(QUERY_PAGE_SZ, &pagesize,
+					  ((uintptr_t)&pagesize) ^ QUERY_PAGE_SZ);
+	gd = pgd;
+
+	if (ret != ROM_API_OKAY)
+		puts("failure at query_boot_info\n");
+
+	pg = pagesize;
+	if (pg < 1024)
+		pg = 1024;
+
+	for (i = 0; i < 640; i++) {
+		ret = g_rom_api->download_image(p, 0, pg,
+						((uintptr_t)p) ^ pg);
+		gd = pgd;
+
+		if (ret != ROM_API_OKAY) {
+			puts("Steam(USB) download failure\n");
+			return -1;
+		}
+
+		pfit = search_fit_header(p, pg);
+		p += pg;
+
+		if (pfit)
+			break;
+	}
+
+	if (!pfit) {
+		puts("Can't found uboot FIT image in 640K range \n");
+		return -1;
+	}
+
+	if (p - pfit < sizeof(struct fdt_header)) {
+		ret = g_rom_api->download_image(p, 0, pg,  ((uintptr_t)p) ^ pg);
+		gd = pgd;
+
+		if (ret != ROM_API_OKAY) {
+			puts("Steam(USB) download failure\n");
+			return -1;
+		}
+
+		p += pg;
+	}
+
+	imagesize = fit_get_size(pfit);
+	printf("Find FIT header 0x&%p, size %d\n", pfit, imagesize);
+
+	if (p - pfit < imagesize) {
+		imagesize -= p - pfit;
+		/*need pagesize hear after ROM fix USB problme*/
+		imagesize += pg - 1;
+		imagesize /= pg;
+		imagesize *= pg;
+
+		printf("Need continue download %d\n", imagesize);
+
+		ret = g_rom_api->download_image(p, 0, imagesize,
+						((uintptr_t)p) ^ imagesize);
+		gd = pgd;
+
+		p += imagesize;
+
+		if (ret != ROM_API_OKAY) {
+			printf("Failure download %d\n", imagesize);
+			return -1;
+		}
+	}
+
+	total = get_fit_image_size(pfit);
+	total += 3;
+	total &= ~0x3;
+
+	imagesize = total - (p - pfit);
+
+	imagesize += pagesize - 1;
+	imagesize /= pagesize;
+	imagesize *= pagesize;
+
+	printf("Download %d, total fit %d\n", imagesize, total);
+
+	ret = g_rom_api->download_image(p, 0, imagesize,
+					((uintptr_t)p) ^ imagesize);
+	if (ret != ROM_API_OKAY)
+		printf("ROM download failure %d\n", imagesize);
+
+	memset(&load, 0, sizeof(load));
+	load.bl_len = 1;
+	load.read = spl_ram_load_read;
+
+	return spl_load_simple_fit(spl_image, &load, (ulong)pfit, pfit);
+}
+
+int board_return_to_bootrom(struct spl_image_info *spl_image,
+			    struct spl_boot_device *bootdev)
+{
+	volatile gd_t *pgd = gd;
+	int ret;
+	u32 boot;
+
+	ret = g_rom_api->query_boot_infor(QUERY_BT_DEV, &boot,
+					  ((uintptr_t)&boot) ^ QUERY_BT_DEV);
+	gd =  pgd;
+
+	if (ret != ROM_API_OKAY) {
+		puts("ROMAPI: failure at query_boot_info\n");
+		return -1;
+	}
+
+	if (is_boot_from_stream_device(boot))
+		return spl_romapi_load_image_stream(spl_image, bootdev);
+
+	return spl_romapi_load_image_seekable(spl_image, bootdev, boot);
+}
...	...	@@ -106,6 +106,39 @@
106	106
107	107	#endif /* CONFIG_MX6 */
108	108
	109	+#ifdef CONFIG_IMX8M
	110	+struct rom_api {
	111	+ u16 ver;
	112	+ u16 tag;
	113	+ u32 reserved1;
	114	+ u32 (download_image)(u8 dest, u32 offset, u32 size, u32 xor);
	115	+ u32 (query_boot_infor)(u32 info_type, u32 info, u32 xor);
	116	+};
	117	+
	118	+enum boot_dev_type_e {
	119	+ BT_DEV_TYPE_SD = 1,
	120	+ BT_DEV_TYPE_MMC = 2,
	121	+ BT_DEV_TYPE_NAND = 3,
	122	+ BT_DEV_TYPE_FLEXSPINOR = 4,
	123	+
	124	+ BT_DEV_TYPE_USB = 0xE,
	125	+ BT_DEV_TYPE_MEM_DEV = 0xF,
	126	+
	127	+ BT_DEV_TYPE_INVALID = 0xFF
	128	+};
	129	+
	130	+#define QUERY_ROM_VER 1
	131	+#define QUERY_BT_DEV 2
	132	+#define QUERY_PAGE_SZ 3
	133	+#define QUERY_IVT_OFF 4
	134	+#define QUERY_BT_STAGE 5
	135	+#define QUERY_IMG_OFF 6
	136	+
	137	+#define ROM_API_OKAY 0xF0
	138	+
	139	+extern struct rom_api *g_rom_api;
	140	+#endif
	141	+
109	142	u32 get_nr_cpus(void);
110	143	u32 get_cpu_rev(void);
111	144	u32 get_cpu_speed_grade_hz(void);
...	...	@@ -109,4 +109,8 @@
109	109	NXP does NOT recommend to perform this calibration at each boot. One
110	110	shall perform it on a new PCB and then use those values to program
111	111	the ddrmc_cr_setting on relevant board file.
	112	+
	113	+config SPL_IMX_ROMAPI_LOADADDR
	114	+ hex "Default load address to load image through ROM API"
	115	+ depends on IMX8MN
...	...	@@ -226,4 +226,6 @@
226	226	obj-$(CONFIG_ARCH_MX7ULP) += mx7ulp/
227	227	obj-$(CONFIG_IMX8M) += imx8m/
228	228	obj-$(CONFIG_ARCH_IMX8) += imx8/
	229	+
	230	+obj-$(CONFIG_SPL_BOOTROM_SUPPORT) += spl_imx_romapi.o
	1	+// SPDX-License-Identifier: GPL-2.0+
	2	+/*
	3	+ * Copyright 2019 NXP
	4	+ */
	5	+
	6	+#include <common.h>
	7	+#include <errno.h>
	8	+#include <image.h>
	9	+#include <linux/libfdt.h>
	10	+#include <spl.h>
	11	+
	12	+#include <asm/arch/sys_proto.h>
	13	+
	14	+DECLARE_GLOBAL_DATA_PTR;
	15	+
	16	+static int is_boot_from_stream_device(u32 boot)
	17	+{
	18	+ u32 interface;
	19	+
	20	+ interface = boot >> 16;
	21	+ if (interface >= BT_DEV_TYPE_USB)
	22	+ return 1;
	23	+
	24	+ if (interface == BT_DEV_TYPE_MMC && (boot & 1))
	25	+ return 1;
	26	+
	27	+ return 0;
	28	+}
	29	+
	30	+static ulong spl_romapi_read_seekable(struct spl_load_info *load,
	31	+ ulong sector, ulong count,
	32	+ void *buf)
	33	+{
	34	+ u32 pagesize = (u32 )load->priv;
	35	+ volatile gd_t *pgd = gd;
	36	+ ulong byte = count * pagesize;
	37	+ int ret;
	38	+ u32 offset;
	39	+
	40	+ offset = sector * pagesize;
	41	+
	42	+ debug("ROM API load from 0x%x, size 0x%x\n", offset, (u32)byte);
	43	+
	44	+ ret = g_rom_api->download_image(buf, offset, byte,
	45	+ ((uintptr_t)buf) ^ offset ^ byte);
	46	+ gd = pgd;
	47	+
	48	+ if (ret == ROM_API_OKAY)
	49	+ return count;
	50	+
	51	+ printf("ROM API Failure when load 0x%x\n", offset);
	52	+
	53	+ return 0;
	54	+}
	55	+
	56	+static int spl_romapi_load_image_seekable(struct spl_image_info *spl_image,
	57	+ struct spl_boot_device *bootdev,
	58	+ u32 rom_bt_dev)
	59	+{
	60	+ volatile gd_t *pgd = gd;
	61	+ int ret;
	62	+ u32 offset;
	63	+ u32 pagesize, size;
	64	+ struct image_header *header;
	65	+ u32 image_offset;
	66	+
	67	+ ret = g_rom_api->query_boot_infor(QUERY_IVT_OFF, &offset,
	68	+ ((uintptr_t)&offset) ^ QUERY_IVT_OFF);
	69	+ ret \|= g_rom_api->query_boot_infor(QUERY_PAGE_SZ, &pagesize,
	70	+ ((uintptr_t)&pagesize) ^ QUERY_PAGE_SZ);
	71	+ ret \|= g_rom_api->query_boot_infor(QUERY_IMG_OFF, &image_offset,
	72	+ ((uintptr_t)&image_offset) ^ QUERY_IMG_OFF);
	73	+
	74	+ gd = pgd;
	75	+
	76	+ if (ret != ROM_API_OKAY) {
	77	+ puts("ROMAPI: Failure query boot infor pagesize/offset\n");
	78	+ return -1;
	79	+ }
	80	+
	81	+ header = (struct image_header *)(CONFIG_SPL_IMX_ROMAPI_LOADADDR);
	82	+
	83	+ printf("image offset 0x%x, pagesize 0x%x, ivt offset 0x%x\n",
	84	+ image_offset, pagesize, offset);
	85	+
	86	+ if (((rom_bt_dev >> 16) & 0xff) == BT_DEV_TYPE_FLEXSPINOR)
	87	+ offset = CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR * 512;
	88	+ else
	89	+ offset = image_offset +
	90	+ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR * 512 - 0x8000;
	91	+
	92	+ size = ALIGN(sizeof(struct image_header), pagesize);
	93	+ ret = g_rom_api->download_image((u8 *)header, offset, size,
	94	+ ((uintptr_t)header) ^ offset ^ size);
	95	+ gd = pgd;
	96	+
	97	+ if (ret != ROM_API_OKAY) {
	98	+ printf("ROMAPI: download failure offset 0x%x size 0x%x\n",
	99	+ offset, size);
	100	+ return -1;
	101	+ }
	102	+
	103	+ if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
	104	+ image_get_magic(header) == FDT_MAGIC) {
	105	+ struct spl_load_info load;
	106	+
	107	+ memset(&load, 0, sizeof(load));
	108	+ load.bl_len = pagesize;
	109	+ load.read = spl_romapi_read_seekable;
	110	+ load.priv = &pagesize;
	111	+ return spl_load_simple_fit(spl_image, &load,
	112	+ offset / pagesize, header);
	113	+ } else {
	114	+ /* TODO */
	115	+ puts("Can't support legacy image\n");
	116	+ return -1;
	117	+ }
	118	+
	119	+ return 0;
	120	+}
	121	+
	122	+static ulong spl_ram_load_read(struct spl_load_info *load, ulong sector,
	123	+ ulong count, void *buf)
	124	+{
	125	+ memcpy(buf, (void *)(sector), count);
	126	+
	127	+ if (load->priv) {
	128	+ ulong p = (ulong )load->priv;
	129	+ ulong total = sector + count;
	130	+
	131	+ if (total > *p)
	132	+ *p = total;
	133	+ }
	134	+
	135	+ return count;
	136	+}
	137	+
	138	+static ulong get_fit_image_size(void *fit)
	139	+{
	140	+ struct spl_image_info spl_image;
	141	+ struct spl_load_info spl_load_info;
	142	+ ulong last = (ulong)fit;
	143	+
	144	+ memset(&spl_load_info, 0, sizeof(spl_load_info));
	145	+ spl_load_info.bl_len = 1;
	146	+ spl_load_info.read = spl_ram_load_read;
	147	+ spl_load_info.priv = &last;
	148	+
	149	+ spl_load_simple_fit(&spl_image, &spl_load_info,
	150	+ (uintptr_t)fit, fit);
	151	+
	152	+ return last - (ulong)fit;
	153	+}
	154	+
	155	+u8 search_fit_header(u8 p, int size)
	156	+{
	157	+ int i;
	158	+
	159	+ for (i = 0; i < size; i += 4)
	160	+ if (genimg_get_format(p + i) == IMAGE_FORMAT_FIT)
	161	+ return p + i;
	162	+
	163	+ return NULL;
	164	+}
	165	+
	166	+static int spl_romapi_load_image_stream(struct spl_image_info *spl_image,
	167	+ struct spl_boot_device *bootdev)
	168	+{
	169	+ struct spl_load_info load;
	170	+ volatile gd_t *pgd = gd;
	171	+ u32 pagesize, pg;
	172	+ int ret;
	173	+ int i = 0;
	174	+ u8 p = (u8 )CONFIG_SPL_IMX_ROMAPI_LOADADDR;
	175	+ u8 *pfit = NULL;
	176	+ int imagesize;
	177	+ int total;
	178	+
	179	+ ret = g_rom_api->query_boot_infor(QUERY_PAGE_SZ, &pagesize,
	180	+ ((uintptr_t)&pagesize) ^ QUERY_PAGE_SZ);
	181	+ gd = pgd;
	182	+
	183	+ if (ret != ROM_API_OKAY)
	184	+ puts("failure at query_boot_info\n");
	185	+
	186	+ pg = pagesize;
	187	+ if (pg < 1024)
	188	+ pg = 1024;
	189	+
	190	+ for (i = 0; i < 640; i++) {
	191	+ ret = g_rom_api->download_image(p, 0, pg,
	192	+ ((uintptr_t)p) ^ pg);
	193	+ gd = pgd;
	194	+
	195	+ if (ret != ROM_API_OKAY) {
	196	+ puts("Steam(USB) download failure\n");
	197	+ return -1;
	198	+ }
	199	+
	200	+ pfit = search_fit_header(p, pg);
	201	+ p += pg;
	202	+
	203	+ if (pfit)
	204	+ break;
	205	+ }
	206	+
	207	+ if (!pfit) {
	208	+ puts("Can't found uboot FIT image in 640K range \n");
	209	+ return -1;
	210	+ }
	211	+
	212	+ if (p - pfit < sizeof(struct fdt_header)) {
	213	+ ret = g_rom_api->download_image(p, 0, pg, ((uintptr_t)p) ^ pg);
	214	+ gd = pgd;
	215	+
	216	+ if (ret != ROM_API_OKAY) {
	217	+ puts("Steam(USB) download failure\n");
	218	+ return -1;
	219	+ }
	220	+
	221	+ p += pg;
	222	+ }
	223	+
	224	+ imagesize = fit_get_size(pfit);
	225	+ printf("Find FIT header 0x&%p, size %d\n", pfit, imagesize);
	226	+
	227	+ if (p - pfit < imagesize) {
	228	+ imagesize -= p - pfit;
	229	+ /need pagesize hear after ROM fix USB problme/
	230	+ imagesize += pg - 1;
	231	+ imagesize /= pg;
	232	+ imagesize *= pg;
	233	+
	234	+ printf("Need continue download %d\n", imagesize);
	235	+
	236	+ ret = g_rom_api->download_image(p, 0, imagesize,
	237	+ ((uintptr_t)p) ^ imagesize);
	238	+ gd = pgd;
	239	+
	240	+ p += imagesize;
	241	+
	242	+ if (ret != ROM_API_OKAY) {
	243	+ printf("Failure download %d\n", imagesize);
	244	+ return -1;
	245	+ }
	246	+ }
	247	+
	248	+ total = get_fit_image_size(pfit);
	249	+ total += 3;
	250	+ total &= ~0x3;
	251	+
	252	+ imagesize = total - (p - pfit);
	253	+
	254	+ imagesize += pagesize - 1;
	255	+ imagesize /= pagesize;
	256	+ imagesize *= pagesize;
	257	+
	258	+ printf("Download %d, total fit %d\n", imagesize, total);
	259	+
	260	+ ret = g_rom_api->download_image(p, 0, imagesize,
	261	+ ((uintptr_t)p) ^ imagesize);
	262	+ if (ret != ROM_API_OKAY)
	263	+ printf("ROM download failure %d\n", imagesize);
	264	+
	265	+ memset(&load, 0, sizeof(load));
	266	+ load.bl_len = 1;
	267	+ load.read = spl_ram_load_read;
	268	+
	269	+ return spl_load_simple_fit(spl_image, &load, (ulong)pfit, pfit);
	270	+}
	271	+
	272	+int board_return_to_bootrom(struct spl_image_info *spl_image,
	273	+ struct spl_boot_device *bootdev)
	274	+{
	275	+ volatile gd_t *pgd = gd;
	276	+ int ret;
	277	+ u32 boot;
	278	+
	279	+ ret = g_rom_api->query_boot_infor(QUERY_BT_DEV, &boot,
	280	+ ((uintptr_t)&boot) ^ QUERY_BT_DEV);
	281	+ gd = pgd;
	282	+
	283	+ if (ret != ROM_API_OKAY) {
	284	+ puts("ROMAPI: failure at query_boot_info\n");
	285	+ return -1;
	286	+ }
	287	+
	288	+ if (is_boot_from_stream_device(boot))
	289	+ return spl_romapi_load_image_stream(spl_image, bootdev);
	290	+
	291	+ return spl_romapi_load_image_seekable(spl_image, bootdev, boot);
	292	+}