fpga: Added support to load bit stream from SD/MMC
Added support to load a bitstream image in chunks by reading it in
chunks from SD/MMC.
Command format:
loadfs [dev] [address] [image size] [blocksize] <interface>
[<dev[:part]>] <filename>
Example: fpga loadfs 0 1000000 3dbafc 4000 mmc 0 fpga.bin
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/common/cmd_fpga.c b/common/cmd_fpga.c
index 802f3ec..bda5c8f 100644
--- a/common/cmd_fpga.c
+++ b/common/cmd_fpga.c
@@ -11,6 +11,7 @@
#include <common.h>
#include <command.h>
#include <fpga.h>
+#include <fs.h>
#include <malloc.h>
/* Local functions */
@@ -25,6 +26,7 @@
#define FPGA_LOADMK 4
#define FPGA_LOADP 5
#define FPGA_LOADBP 6
+#define FPGA_LOADFS 7
/* ------------------------------------------------------------------------- */
/* command form:
@@ -47,6 +49,10 @@
const char *fit_uname = NULL;
ulong fit_addr;
#endif
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+ fpga_fs_info fpga_fsinfo;
+ fpga_fsinfo.fstype = FS_TYPE_ANY;
+#endif
if (devstr)
dev = (int) simple_strtoul(devstr, NULL, 16);
@@ -54,6 +60,14 @@
fpga_data = (void *)simple_strtoul(datastr, NULL, 16);
switch (argc) {
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+ case 9:
+ fpga_fsinfo.blocksize = (unsigned int)
+ simple_strtoul(argv[5], NULL, 16);
+ fpga_fsinfo.interface = argv[6];
+ fpga_fsinfo.dev_part = argv[7];
+ fpga_fsinfo.filename = argv[8];
+#endif
case 5: /* fpga <op> <dev> <data> <datasize> */
data_size = simple_strtoul(argv[4], NULL, 16);
@@ -122,6 +136,13 @@
case FPGA_NONE:
case FPGA_INFO:
break;
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+ case FPGA_LOADFS:
+ /* Blocksize can be zero */
+ if (!fpga_fsinfo.interface || !fpga_fsinfo.dev_part ||
+ !fpga_fsinfo.filename)
+ wrong_parms = 1;
+#endif
case FPGA_LOAD:
case FPGA_LOADP:
case FPGA_LOADB:
@@ -171,6 +192,12 @@
break;
#endif
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+ case FPGA_LOADFS:
+ rc = fpga_fsload(dev, fpga_data, data_size, &fpga_fsinfo);
+ break;
+#endif
+
#if defined(CONFIG_CMD_FPGA_LOADMK)
case FPGA_LOADMK:
switch (genimg_get_format(fpga_data)) {
@@ -287,6 +314,10 @@
else if (!strcmp("loadbp", opstr))
op = FPGA_LOADBP;
#endif
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+ else if (!strcmp("loadfs", opstr))
+ op = FPGA_LOADFS;
+#endif
#if defined(CONFIG_CMD_FPGA_LOADMK)
else if (!strcmp("loadmk", opstr))
op = FPGA_LOADMK;
@@ -300,7 +331,11 @@
return op;
}
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+U_BOOT_CMD(fpga, 9, 1, do_fpga,
+#else
U_BOOT_CMD(fpga, 6, 1, do_fpga,
+#endif
"loadable FPGA image support",
"[operation type] [device number] [image address] [image size]\n"
"fpga operations:\n"
@@ -318,6 +353,11 @@
"Load device from bitstream buffer with partial bitstream"
"(Xilinx only)\n"
#endif
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+ "Load device from filesystem (FAT by default) (Xilinx only)\n"
+ " loadfs [dev] [address] [image size] [blocksize] <interface>\n"
+ " [<dev[:part]>] <filename>\n"
+#endif
#if defined(CONFIG_CMD_FPGA_LOADMK)
" loadmk [dev] [address]\tLoad device generated with mkimage"
#if defined(CONFIG_FIT)
diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c
index e770950..37946d5 100644
--- a/drivers/fpga/fpga.c
+++ b/drivers/fpga/fpga.c
@@ -180,6 +180,34 @@
return FPGA_FAIL;
}
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+int fpga_fsload(int devnum, const void *buf, size_t size,
+ fpga_fs_info *fpga_fsinfo)
+{
+ int ret_val = FPGA_FAIL; /* assume failure */
+ const fpga_desc *desc = fpga_validate(devnum, buf, size,
+ (char *)__func__);
+
+ if (desc) {
+ switch (desc->devtype) {
+ case fpga_xilinx:
+#if defined(CONFIG_FPGA_XILINX)
+ ret_val = xilinx_loadfs(desc->devdesc, buf, size,
+ fpga_fsinfo);
+#else
+ fpga_no_sup((char *)__func__, "Xilinx devices");
+#endif
+ break;
+ default:
+ printf("%s: Invalid or unsupported device type %d\n",
+ __func__, desc->devtype);
+ }
+ }
+
+ return ret_val;
+}
+#endif
+
/*
* Generic multiplexing code
*/
diff --git a/drivers/fpga/xilinx.c b/drivers/fpga/xilinx.c
index ab9f517..3795c1a 100644
--- a/drivers/fpga/xilinx.c
+++ b/drivers/fpga/xilinx.c
@@ -142,6 +142,22 @@
return desc->operations->load(desc, buf, bsize, bstype);
}
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+int xilinx_loadfs(xilinx_desc *desc, const void *buf, size_t bsize,
+ fpga_fs_info *fpga_fsinfo)
+{
+ if (!xilinx_validate(desc, (char *)__func__)) {
+ printf("%s: Invalid device descriptor\n", __func__);
+ return FPGA_FAIL;
+ }
+
+ if (!desc->operations->loadfs)
+ return FPGA_FAIL;
+
+ return desc->operations->loadfs(desc, buf, bsize, fpga_fsinfo);
+}
+#endif
+
int xilinx_dump(xilinx_desc *desc, const void *buf, size_t bsize)
{
if (!xilinx_validate (desc, (char *)__FUNCTION__)) {
diff --git a/drivers/fpga/zynqpl.c b/drivers/fpga/zynqpl.c
index 915f077..68fe0f3 100644
--- a/drivers/fpga/zynqpl.c
+++ b/drivers/fpga/zynqpl.c
@@ -9,6 +9,7 @@
#include <common.h>
#include <asm/io.h>
+#include <fs.h>
#include <zynqpl.h>
#include <linux/sizes.h>
#include <asm/arch/hardware.h>
@@ -398,6 +399,87 @@
return FPGA_SUCCESS;
}
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+static int zynq_loadfs(xilinx_desc *desc, const void *buf, size_t bsize,
+ fpga_fs_info *fsinfo)
+{
+ unsigned long ts; /* Timestamp */
+ u32 isr_status, swap;
+ u32 partialbit = 0;
+ u32 blocksize;
+ u32 pos = 0;
+ int fstype;
+ char *interface, *dev_part, *filename;
+
+ blocksize = fsinfo->blocksize;
+ interface = fsinfo->interface;
+ dev_part = fsinfo->dev_part;
+ filename = fsinfo->filename;
+ fstype = fsinfo->fstype;
+
+ if (fs_set_blk_dev(interface, dev_part, fstype))
+ return FPGA_FAIL;
+
+ if (fs_read(filename, (u32) buf, pos, blocksize) < 0)
+ return FPGA_FAIL;
+
+ if (zynq_validate_bitstream(desc, buf, bsize, blocksize, &swap,
+ &partialbit))
+ return FPGA_FAIL;
+
+ dcache_disable();
+
+ do {
+ buf = zynq_align_dma_buffer((u32 *)buf, blocksize, swap);
+
+ if (zynq_dma_transfer((u32)buf | 1, blocksize >> 2,
+ 0xffffffff, 0))
+ return FPGA_FAIL;
+
+ bsize -= blocksize;
+ pos += blocksize;
+
+ if (fs_set_blk_dev(interface, dev_part, fstype))
+ return FPGA_FAIL;
+
+ if (bsize > blocksize) {
+ if (fs_read(filename, (u32) buf, pos, blocksize) < 0)
+ return FPGA_FAIL;
+ } else {
+ if (fs_read(filename, (u32) buf, pos, bsize) < 0)
+ return FPGA_FAIL;
+ }
+ } while (bsize > blocksize);
+
+ buf = zynq_align_dma_buffer((u32 *)buf, blocksize, swap);
+
+ if (zynq_dma_transfer((u32)buf | 1, bsize >> 2, 0xffffffff, 0))
+ return FPGA_FAIL;
+
+ dcache_enable();
+
+ isr_status = readl(&devcfg_base->int_sts);
+
+ /* Check FPGA configuration completion */
+ ts = get_timer(0);
+ while (!(isr_status & DEVCFG_ISR_PCFG_DONE)) {
+ if (get_timer(ts) > CONFIG_SYS_FPGA_WAIT) {
+ printf("%s: Timeout wait for FPGA to config\n",
+ __func__);
+ return FPGA_FAIL;
+ }
+ isr_status = readl(&devcfg_base->int_sts);
+ }
+
+ debug("%s: FPGA config done\n", __func__);
+
+ if (!partialbit)
+ zynq_slcr_devcfg_enable();
+
+ return FPGA_SUCCESS;
+}
+#endif
+
static int zynq_dump(xilinx_desc *desc, const void *buf, size_t bsize)
{
return FPGA_FAIL;
@@ -405,6 +487,9 @@
struct xilinx_fpga_op zynq_op = {
.load = zynq_load,
+#if defined(CONFIG_CMD_FPGA_LOADFS)
+ .loadfs = zynq_loadfs,
+#endif
.dump = zynq_dump,
.info = zynq_info,
};
diff --git a/include/configs/zynq-common.h b/include/configs/zynq-common.h
index fb600b8..9763245 100644
--- a/include/configs/zynq-common.h
+++ b/include/configs/zynq-common.h
@@ -194,6 +194,7 @@
#define CONFIG_CMD_FPGA_LOADMK
#define CONFIG_CMD_FPGA_LOADP
#define CONFIG_CMD_FPGA_LOADBP
+#define CONFIG_CMD_FPGA_LOADFS
/* Open Firmware flat tree */
#define CONFIG_OF_LIBFDT
diff --git a/include/fpga.h b/include/fpga.h
index 49efd37..914024c 100644
--- a/include/fpga.h
+++ b/include/fpga.h
@@ -35,6 +35,13 @@
void *devdesc; /* real device descriptor */
} fpga_desc; /* end, typedef fpga_desc */
+typedef struct { /* typedef fpga_desc */
+ unsigned int blocksize;
+ char *interface;
+ char *dev_part;
+ char *filename;
+ int fstype;
+} fpga_fs_info;
typedef enum {
BIT_FULL = 0,
@@ -47,6 +54,8 @@
extern int fpga_count(void);
extern int fpga_load(int devnum, const void *buf, size_t bsize,
bitstream_type bstype);
+extern int fpga_fsload(int devnum, const void *buf, size_t size,
+ fpga_fs_info *fpga_fsinfo);
extern int fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
bitstream_type bstype);
extern int fpga_dump(int devnum, const void *buf, size_t bsize);
diff --git a/include/xilinx.h b/include/xilinx.h
index 7d83ba2..aebcb3b 100644
--- a/include/xilinx.h
+++ b/include/xilinx.h
@@ -46,6 +46,7 @@
struct xilinx_fpga_op {
int (*load)(xilinx_desc *, const void *, size_t, bitstream_type);
+ int (*loadfs)(xilinx_desc *, const void *, size_t, fpga_fs_info *);
int (*dump)(xilinx_desc *, const void *, size_t);
int (*info)(xilinx_desc *);
};
@@ -56,6 +57,8 @@
bitstream_type bstype);
int xilinx_dump(xilinx_desc *desc, const void *buf, size_t bsize);
int xilinx_info(xilinx_desc *desc);
+int xilinx_loadfs(xilinx_desc *desc, const void *buf, size_t bsize,
+ fpga_fs_info *fpga_fsinfo);
/* Board specific implementation specific function types
*********************************************************************/