From 1a897668ac33c57ca76f47cb940ec32b405e90dd Mon Sep 17 00:00:00 2001 From: Siva Durga Prasad Paladugu Date: Fri, 14 Mar 2014 16:35:37 +0530 Subject: 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] [] Example: fpga loadfs 0 1000000 3dbafc 4000 mmc 0 fpga.bin Signed-off-by: Siva Durga Prasad Paladugu Signed-off-by: Michal Simek --- drivers/fpga/fpga.c | 28 +++++++++++++++++ drivers/fpga/xilinx.c | 16 ++++++++++ drivers/fpga/zynqpl.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 129 insertions(+) (limited to 'drivers/fpga') diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c index e770950909..37946d5e18 100644 --- a/drivers/fpga/fpga.c +++ b/drivers/fpga/fpga.c @@ -180,6 +180,34 @@ int __weak fpga_loadbitstream(int devnum, char *fpgadata, size_t size, 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 ab9f51733e..3795c1aff6 100644 --- a/drivers/fpga/xilinx.c +++ b/drivers/fpga/xilinx.c @@ -142,6 +142,22 @@ int xilinx_load(xilinx_desc *desc, const void *buf, size_t bsize, 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 915f07735a..68fe0f3b03 100644 --- a/drivers/fpga/zynqpl.c +++ b/drivers/fpga/zynqpl.c @@ -9,6 +9,7 @@ #include #include +#include #include #include #include @@ -398,6 +399,87 @@ static int zynq_load(xilinx_desc *desc, const void *buf, size_t bsize, 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 @@ static int zynq_dump(xilinx_desc *desc, const void *buf, size_t bsize) 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, }; -- cgit v1.2.3