image: Add boot_get_fpga() to load fpga with bootm

Add function boot_get_fpga() which find and load bitstream to
programmable logic if fpga entry is present.
Function is supported on Xilinx devices for full and partial bitstreams
in BIN and BIT format.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Remove additional blankline in image.h

common/bootm.c

@@ -246,6 +246,16 @@ int bootm_find_images(int flag, int argc, char * const argv[])
 #endif
 
 #if IMAGE_ENABLE_FIT
+#if defined(CONFIG_FPGA) && defined(CONFIG_FPGA_XILINX)
+	/* find bitstreams */
+	ret = boot_get_fpga(argc, argv, &images, IH_ARCH_DEFAULT,
+			    NULL, NULL);
+	if (ret) {
+		printf("FPGA image is corrupted or invalid\n");
+		return 1;
+	}
+#endif
+
 	/* find all of the loadables */
 	ret = boot_get_loadable(argc, argv, &images, IH_ARCH_DEFAULT,
 			       NULL, NULL);

common/image-fit.c

@@ -422,7 +422,8 @@ void fit_image_print(const void *fit, int image_noffset, const char *p)
 	}
 
 	if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
-	    (type == IH_TYPE_FIRMWARE) || (type == IH_TYPE_RAMDISK)) {
+	    (type == IH_TYPE_FIRMWARE) || (type == IH_TYPE_RAMDISK) ||
+	    (type == IH_TYPE_FPGA)) {
 		ret = fit_image_get_load(fit, image_noffset, &load);
 		printf("%s  Load Address: ", p);
 		if (ret)
@@ -1571,6 +1572,8 @@ static const char *fit_get_image_type_property(int type)
 		return FIT_SETUP_PROP;
 	case IH_TYPE_LOADABLE:
 		return FIT_LOADABLE_PROP;
+	case IH_TYPE_FPGA:
+		return FIT_FPGA_PROP;
 	}
 
 	return "unknown";
@@ -1685,7 +1688,7 @@ int fit_image_load(bootm_headers_t *images, ulong addr,
 			fit_image_check_type(fit, noffset,
 					     IH_TYPE_KERNEL_NOLOAD));
 
-	os_ok = image_type == IH_TYPE_FLATDT ||
+	os_ok = image_type == IH_TYPE_FLATDT || IH_TYPE_FPGA ||
 		fit_image_check_os(fit, noffset, IH_OS_LINUX) ||
 		fit_image_check_os(fit, noffset, IH_OS_OPENRTOS);
 

common/image.c

@@ -32,6 +32,8 @@
 #if IMAGE_ENABLE_FIT || IMAGE_ENABLE_OF_LIBFDT
 #include <libfdt.h>
 #include <fdt_support.h>
+#include <fpga.h>
+#include <xilinx.h>
 #endif
 
 #include <u-boot/md5.h>
@@ -1212,6 +1214,96 @@ int boot_get_setup(bootm_headers_t *images, uint8_t arch,
 }
 
 #if IMAGE_ENABLE_FIT
+#if defined(CONFIG_FPGA) && defined(CONFIG_FPGA_XILINX)
+int boot_get_fpga(int argc, char * const argv[], bootm_headers_t *images,
+		  uint8_t arch, const ulong *ld_start, ulong * const ld_len)
+{
+	ulong tmp_img_addr, img_data, img_len;
+	void *buf;
+	int conf_noffset;
+	int fit_img_result;
+	char *uname, *name;
+	int err;
+	int devnum = 0; /* TODO support multi fpga platforms */
+	const fpga_desc * const desc = fpga_get_desc(devnum);
+	xilinx_desc *desc_xilinx = desc->devdesc;
+
+	/* Check to see if the images struct has a FIT configuration */
+	if (!genimg_has_config(images)) {
+		debug("## FIT configuration was not specified\n");
+		return 0;
+	}
+
+	/*
+	 * Obtain the os FIT header from the images struct
+	 * copy from dataflash if needed
+	 */
+	tmp_img_addr = map_to_sysmem(images->fit_hdr_os);
+	tmp_img_addr = genimg_get_image(tmp_img_addr);
+	buf = map_sysmem(tmp_img_addr, 0);
+	/*
+	 * Check image type. For FIT images get FIT node
+	 * and attempt to locate a generic binary.
+	 */
+	switch (genimg_get_format(buf)) {
+	case IMAGE_FORMAT_FIT:
+		conf_noffset = fit_conf_get_node(buf, images->fit_uname_cfg);
+
+		err = fdt_get_string_index(buf, conf_noffset, FIT_FPGA_PROP, 0,
+					   (const char **)&uname);
+		if (err < 0) {
+			debug("## FPGA image is not specified\n");
+			return 0;
+		}
+		fit_img_result = fit_image_load(images,
+						tmp_img_addr,
+						(const char **)&uname,
+						&(images->fit_uname_cfg),
+						arch,
+						IH_TYPE_FPGA,
+						BOOTSTAGE_ID_FPGA_INIT,
+						FIT_LOAD_OPTIONAL_NON_ZERO,
+						&img_data, &img_len);
+
+		debug("FPGA image (%s) loaded to 0x%lx/size 0x%lx\n",
+		      uname, img_data, img_len);
+
+		if (fit_img_result < 0) {
+			/* Something went wrong! */
+			return fit_img_result;
+		}
+
+		if (img_len >= desc_xilinx->size) {
+			name = "full";
+			err = fpga_loadbitstream(devnum, (char *)img_data,
+						 img_len, BIT_FULL);
+			if (err)
+				err = fpga_load(devnum, (const void *)img_data,
+						img_len, BIT_FULL);
+		} else {
+			name = "partial";
+			err = fpga_loadbitstream(devnum, (char *)img_data,
+						 img_len, BIT_PARTIAL);
+			if (err)
+				err = fpga_load(devnum, (const void *)img_data,
+						img_len, BIT_PARTIAL);
+		}
+
+		printf("   Programming %s bitstream... ", name);
+		if (err)
+			printf("failed\n");
+		else
+			printf("OK\n");
+		break;
+	default:
+		printf("The given image format is not supported (corrupt?)\n");
+		return 1;
+	}
+
+	return 0;
+}
+#endif
+
 int boot_get_loadable(int argc, char * const argv[], bootm_headers_t *images,
 		uint8_t arch, const ulong *ld_start, ulong * const ld_len)
 {

include/bootstage.h

@@ -198,6 +198,7 @@ enum bootstage_id {
 	BOOTSTAGE_ID_ACCUM_SCSI,
 	BOOTSTAGE_ID_ACCUM_SPI,
 	BOOTSTAGE_ID_ACCUM_DECOMP,
+	BOOTSTAGE_ID_FPGA_INIT,
 
 	/* a few spare for the user, from here */
 	BOOTSTAGE_ID_USER,

include/image.h

@@ -496,6 +496,8 @@ int genimg_get_format(const void *img_addr);
 int genimg_has_config(bootm_headers_t *images);
 ulong genimg_get_image(ulong img_addr);
 
+int boot_get_fpga(int argc, char * const argv[], bootm_headers_t *images,
+		uint8_t arch, const ulong *ld_start, ulong * const ld_len);
 int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
 		uint8_t arch, ulong *rd_start, ulong *rd_end);