[U-Boot] [PATCH 3/3] arm: socfpga: Add Arria 10 SoCFPGA programming interface

[tien.fong.chee at intel.com]

From: Tien Fong Chee <tien.fong.chee at intel.com>

Add code necessary into the FPGA driver framework in U-Boot
so it can be used via the 'fpga' command for programing Arria 10
SoCFPGA.

Signed-off-by: Tien Fong Chee <tien.fong.chee at intel.com>
---
 cmd/fpga.c            |    2 +-
 drivers/fpga/altera.c |   41 +++++++++++++++++++++++++++++++++--------
 drivers/fpga/fpga.c   |    8 ++++++++
 include/altera.h      |    2 ++
 include/fpga.h        |    2 ++
 5 files changed, 46 insertions(+), 9 deletions(-)

diff --git a/cmd/fpga.c b/cmd/fpga.c
index 14ad4e5..207cec3 100644
--- a/cmd/fpga.c
+++ b/cmd/fpga.c
@@ -362,7 +362,7 @@ U_BOOT_CMD(fpga, 6, 1, do_fpga,
 	   "(Xilinx only)\n"
 #endif
 #if defined(CONFIG_CMD_FPGA_LOADFS)
-	   "Load device from filesystem (FAT by default) (Xilinx only)\n"
+	   "Load device from filesystem (FAT by default)\n"
 	   "  loadfs [dev] [address] [image size] [blocksize] <interface>\n"
 	   "        [<dev[:part]>] <filename>\n"
 #endif
diff --git a/drivers/fpga/altera.c b/drivers/fpga/altera.c
index 9605554..3c9474c 100644
--- a/drivers/fpga/altera.c
+++ b/drivers/fpga/altera.c
@@ -12,6 +12,7 @@
  */
 #include <common.h>
 #include <errno.h>
+#include <altera.h>             /* altera specific definitions */
 #include <ACEX1K.h>
 #include <stratixII.h>
 
@@ -22,25 +23,31 @@ static const struct altera_fpga {
 	enum altera_family	family;
 	const char		*name;
 	int			(*load)(Altera_desc *, const void *, size_t);
+	int (*loadfs)(Altera_desc *, const void *, size_t, fpga_fs_info *);
 	int			(*dump)(Altera_desc *, const void *, size_t);
 	int			(*info)(Altera_desc *);
 } altera_fpga[] = {
 #if defined(CONFIG_FPGA_ACEX1K)
-	{ Altera_ACEX1K, "ACEX1K", ACEX1K_load, ACEX1K_dump, ACEX1K_info },
-	{ Altera_CYC2,   "ACEX1K", ACEX1K_load, ACEX1K_dump, ACEX1K_info },
+	{ Altera_ACEX1K, "ACEX1K", ACEX1K_load, NULL, ACEX1K_dump,
+	 ACEX1K_info },
+	{ Altera_CYC2,   "ACEX1K", ACEX1K_load, NULL, ACEX1K_dump,
+	 ACEX1K_info },
 #elif defined(CONFIG_FPGA_CYCLON2)
-	{ Altera_ACEX1K, "CycloneII", CYC2_load, CYC2_dump, CYC2_info },
-	{ Altera_CYC2,   "CycloneII", CYC2_load, CYC2_dump, CYC2_info },
+	{ Altera_ACEX1K, "CycloneII", CYC2_load, NULL, CYC2_dump, CYC2_info },
+	{ Altera_CYC2,   "CycloneII", CYC2_load, NULL, CYC2_dump, CYC2_info },
 #endif
 #if defined(CONFIG_FPGA_STRATIX_II)
-	{ Altera_StratixII, "StratixII", StratixII_load,
+	{ Altera_StratixII, "StratixII", StratixII_load, NULL,
 	  StratixII_dump, StratixII_info },
 #endif
 #if defined(CONFIG_FPGA_STRATIX_V)
-	{ Altera_StratixV, "StratixV", stratixv_load, NULL, NULL },
+	{ Altera_StratixV, "StratixV", stratixv_load, NULL, NULL, NULL },
 #endif
-#if defined(CONFIG_FPGA_SOCFPGA)
-	{ Altera_SoCFPGA, "SoC FPGA", socfpga_load, NULL, NULL },
+#if defined(CONFIG_FPGA_SOCFPGA) && defined(CONFIG_CMD_FPGA_LOADFS)
+	{ Altera_SoCFPGA, "SoC FPGA", socfpga_load, socfpga_loadfs, NULL,
+	 NULL },
+#elif defined(CONFIG_FPGA_SOCFPGA)
+	{ Altera_SoCFPGA, "SoC FPGA", socfpga_load, NULL, NULL, NULL },
 #endif
 };
 
@@ -173,3 +180,21 @@ int altera_info(Altera_desc *desc)
 
 	return FPGA_SUCCESS;
 }
+
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+int altera_loadfs(Altera_desc *desc, const void *buf, size_t bsize,
+		   fpga_fs_info *fpga_fsinfo)
+{
+	const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
+
+	if (!fpga)
+		return FPGA_FAIL;
+
+	debug_cond(FPGA_DEBUG, "%s: Launching the %s FS Loader...\n",
+		   __func__, fpga->name);
+	if (fpga->loadfs)
+		return fpga->loadfs(desc, buf, bsize, fpga_fsinfo);
+
+	return -EINVAL;
+}
+#endif
diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c
index 55bdf9e..67b772d 100644
--- a/drivers/fpga/fpga.c
+++ b/drivers/fpga/fpga.c
@@ -207,6 +207,14 @@ int fpga_fsload(int devnum, const void *buf, size_t size,
 			fpga_no_sup((char *)__func__, "Xilinx devices");
 #endif
 			break;
+#if defined(CONFIG_FPGA_ALTERA)
+		case fpga_altera:
+			ret_val = altera_loadfs(desc->devdesc, buf, size,
+						fpga_fsinfo);
+#else
+			fpga_no_sup((char *)__func__, "Altera devices");
+#endif
+			break;
 		default:
 			printf("%s: Invalid or unsupported device type %d\n",
 			       __func__, desc->devtype);
diff --git a/include/altera.h b/include/altera.h
index cf0c021..b641b8a 100644
--- a/include/altera.h
+++ b/include/altera.h
@@ -114,6 +114,8 @@ typedef struct {
 
 #ifdef CONFIG_FPGA_SOCFPGA
 int socfpga_load(Altera_desc *desc, const void *rbf_data, size_t rbf_size);
+int socfpga_loadfs(Altera_desc *desc, const void *buf, size_t bsize,
+			       fpga_fs_info *fpga_fsinfo);
 #endif
 
 #ifdef CONFIG_FPGA_STRATIX_V
diff --git a/include/fpga.h b/include/fpga.h
index f444093..eee6fed 100644
--- a/include/fpga.h
+++ b/include/fpga.h
@@ -56,8 +56,10 @@ const fpga_desc *const fpga_get_desc(int devnum);
 int fpga_is_partial_data(int devnum, size_t img_len);
 int fpga_load(int devnum, const void *buf, size_t bsize,
 	      bitstream_type bstype);
+#if defined(CONFIG_CMD_FPGA_LOADFS)
 int fpga_fsload(int devnum, const void *buf, size_t size,
 		fpga_fs_info *fpga_fsinfo);
+#endif
 int fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
 		       bitstream_type bstype);
 int fpga_dump(int devnum, const void *buf, size_t bsize);
-- 
1.7.7.4