---
c/src/lib/libbsp/arm/xilinx-zynq/Makefile.am | 5 +
.../libbsp/arm/xilinx-zynq/devcfg/zynq-devcfg.c | 770 +++++++++++++++++++++
.../arm/xilinx-zynq/include/zynq-devcfg-regs.h | 194 ++++++
.../libbsp/arm/xilinx-zynq/include/zynq-devcfg.h | 160 +++++
c/src/lib/libbsp/arm/xilinx-zynq/preinstall.am | 8 +
5 files changed, 1137 insertions(+)
create mode 100644 c/src/lib/libbsp/arm/xilinx-zynq/devcfg/zynq-devcfg.c
create mode 100644 c/src/lib/libbsp/arm/xilinx-zynq/include/zynq-devcfg-regs.h
create mode 100644 c/src/lib/libbsp/arm/xilinx-zynq/include/zynq-devcfg.h
diff --git a/c/src/lib/libbsp/arm/xilinx-zynq/Makefile.am
b/c/src/lib/libbsp/arm/xilinx-zynq/Makefile.am
index 08024b9..439399b 100644
--- a/c/src/lib/libbsp/arm/xilinx-zynq/Makefile.am
+++ b/c/src/lib/libbsp/arm/xilinx-zynq/Makefile.am
@@ -49,6 +49,8 @@ include_bsp_HEADERS += include/i2c.h
include_bsp_HEADERS += include/irq.h
include_bsp_HEADERS += include/zynq-uart.h
include_bsp_HEADERS += include/zynq-uart-regs.h
+include_bsp_HEADERS += include/zynq-devcfg.h
+include_bsp_HEADERS += include/zynq-devcfg-regs.h
include_bsp_HEADERS += include/zynq-slcr.h
include_bsp_HEADERS += include/zynq-slcr-regs.h
@@ -120,6 +122,9 @@ libbsp_a_SOURCES += ../shared/arm-a9mpcore-clock-config.c
# I2C
libbsp_a_SOURCES += i2c/cadence-i2c.c
+# Device Config
+libbsp_a_SOURCES += devcfg/zynq-devcfg.c
+
# System Level Control Registers
libbsp_a_SOURCES += slcr/zynq-slcr.c
diff --git a/c/src/lib/libbsp/arm/xilinx-zynq/devcfg/zynq-devcfg.c
b/c/src/lib/libbsp/arm/xilinx-zynq/devcfg/zynq-devcfg.c
new file mode 100644
index 0000000..5610545
--- /dev/null
+++ b/c/src/lib/libbsp/arm/xilinx-zynq/devcfg/zynq-devcfg.c
@@ -0,0 +1,770 @@
+/*
+ * Xilinx Zynq7000 Device Configuration Driver Implementation
+ *
+ * Notes:
+ * - There will only ever be 1 of these controllers in the Zynq, so this driver
+ * is designed to be run as a single instance.
+ * - Even if an interrupt bit is already asserted, unmasking it will lead to
+ * triggering the interrupt. In several areas operations are started before
+ * unmasking an interrupt which could be triggered by those operations; this
+ * interrupt behavior allows for such code to not be racy.
+ *
+ * Copyright (c) 2016
+ * NSF Center for High-Performance Reconfigurable Computing (CHREC),
+ * University of Florida. All rights reserved.
+ * Copyright (c) 2017
+ * NSF Center for High-Performance Reconfigurable Computing (CHREC),
+ * University of Pittsburgh. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation
+ * are those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of CHREC.
+ *
+ * Author: Patrick Gauvin <gau...@hcs.ufl.edu>
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <rtems.h>
+#include <rtems/libio.h>
+#include <rtems/rtems/sem.h>
+#include <rtems/irq-extension.h>
+#include <bsp/zynq-slcr.h>
+#include <bsp/zynq-slcr-regs.h>
+#include <bsp/zynq-devcfg.h>
+#include <bsp/zynq-devcfg-regs.h>
+
+#define WARN( msg ) printf( "%s:%s: %s", __FILE__, __func__, msg )
+/* Timeout for interrupt waits, 2 seconds should be enough for any operation.
+ */
+#define INT_TIMEOUT ( 2 * rtems_clock_get_ticks_per_second() )
+
+typedef struct {
+ volatile zynq_devcfg_regs *regs;
+ rtems_id sem_id_open;
+ rtems_id sem_id_internal;
+ rtems_id sem_id_int_wait;
+ /* Indicates if the PCAP will be used for a secure bitstream. Secure
+ * bitstreams are untested with this driver. Defaults to false.
+ */
+ bool secure;
+} drvdata;
+
+static drvdata data;
+/* TODO: Abstract DMA buffer retrieval better */
+static uint8_t *dma_buf = NULL;
+
+/* Check if bit is set in reg (and not masked by mask), and if it is, write
+ * that bit to reg, returning true. Otherwise return false.
+ */
+static inline bool check_and_set(
+ volatile uint32_t *reg,
+ uint32_t mask,
+ uint32_t bit
+)
+{
+ if ( *reg & bit & ~mask )
+ {
+ *reg = bit;
+ return true;
+ }
+ return false;
+}
+
+/* Only one semaphore is used since only one interrupt is unmasked at a time.
+ * The interrupt is cleared and masked after it is caught here.
+ */
+static void zynq_devcfg_isr(
+ void *args
+)
+{
+ uint32_t intrs[] = {
+ ZYNQ_DEVCFG_INT_DMA_DONE_INT,
+ ZYNQ_DEVCFG_INT_PCFG_INIT_PE_INT,
+ ZYNQ_DEVCFG_INT_PCFG_INIT_NE_INT,
+ ZYNQ_DEVCFG_INT_PCFG_DONE_INT,
+ ZYNQ_DEVCFG_INT_PSS_CFG_RESET_B_INT
+ };
+ volatile uint32_t *int_sts = &data.regs->int_sts;
+ volatile uint32_t *int_mask = &data.regs->int_mask;
+
+ (void) args;
+
+ for ( size_t i = 0; i < RTEMS_ARRAY_SIZE( intrs ); ++i )
+ if ( check_and_set( int_sts, *int_mask, intrs[i] ) )
+ {
+ *int_mask |= intrs[i];
+ rtems_semaphore_release( data.sem_id_int_wait );
+ return;
+ }
+}
+
+static size_t get_bitstream_len( void )
+{
+ switch ( ZYNQ_SLCR_PSS_IDCODE_DEVICE_GET( zynq_slcr_pss_idcode_get() ) )
+ {
+ case ZYNQ_SLCR_PSS_IDCODE_DEVICE_7z007s:
+ return ZYNQ_DEVCFG_BITSTREAM_LEN_7z007s;
+ case ZYNQ_SLCR_PSS_IDCODE_DEVICE_7z012s:
+ return ZYNQ_DEVCFG_BITSTREAM_LEN_7z012s;
+ case ZYNQ_SLCR_PSS_IDCODE_DEVICE_7z014s:
+ return ZYNQ_DEVCFG_BITSTREAM_LEN_7z014s;
+ case ZYNQ_SLCR_PSS_IDCODE_DEVICE_7z010:
+ return ZYNQ_DEVCFG_BITSTREAM_LEN_7z010;
+ case ZYNQ_SLCR_PSS_IDCODE_DEVICE_7z015:
+ return ZYNQ_DEVCFG_BITSTREAM_LEN_7z015;
+ case ZYNQ_SLCR_PSS_IDCODE_DEVICE_7z020:
+ return ZYNQ_DEVCFG_BITSTREAM_LEN_7z020;
+ case ZYNQ_SLCR_PSS_IDCODE_DEVICE_7z030:
+ return ZYNQ_DEVCFG_BITSTREAM_LEN_7z030;
+ case ZYNQ_SLCR_PSS_IDCODE_DEVICE_7z035:
+ return ZYNQ_DEVCFG_BITSTREAM_LEN_7z035;
+ case ZYNQ_SLCR_PSS_IDCODE_DEVICE_7z045:
+ return ZYNQ_DEVCFG_BITSTREAM_LEN_7z045;
+ case ZYNQ_SLCR_PSS_IDCODE_DEVICE_7z100:
+ return ZYNQ_DEVCFG_BITSTREAM_LEN_7z100;
+ default:
+ return 0;
+ }
+}
+
+/**
+ * @brief Create an aligned buffer for the bitstream.
+ *
+ * @param Desired length of the buffer in bytes.
+ *
+ * @retval NULL malloc failed.
+ */
+static uint8_t *dma_buf_get(
+ size_t len
+)
+{
+ dma_buf = malloc( len + ZYNQ_DEVCFG_PCAP_DMA_ALIGN );
+ if ( NULL == dma_buf )
+ return NULL;
+ if ( (size_t)dma_buf % ZYNQ_DEVCFG_PCAP_DMA_ALIGN != 0 )
+ {
+ return dma_buf + ZYNQ_DEVCFG_PCAP_DMA_ALIGN
+ - ( (size_t)dma_buf % ZYNQ_DEVCFG_PCAP_DMA_ALIGN );
+ }
+ return dma_buf;
+}
+
+static void dma_buf_release( void )
+{
+ free( dma_buf );
+}
+
+/**
+ * @brief Initiates a PCAP DMA transfer.
+ *
+ * @param src[in] For programming the FPGA, this is the location of the
+ * bitstream data. For readback, it is the location of the PL readback command
+ * sequence.
+ * @param src_len Typically the length of bitstream in dwords, or the number of
+ * PL commands. The user must check this value for correctness.
+ * @param dst[in,out] For programming the FPGA use ZYNQ_DEVCFG_BITSTREAM_ADDR,
+ * for readback this is where the readback data is stored.
+ * @param dst_len Typically the Length of bitstream in dwords, or the number of
+ * readback words expected. The user must check this value for correctness.
+ *
+ * @retval 0 Transfer was started.
+ * @retval -1 src_len or dst_len invalid.
+ * @retval -2 The DMA queue was full.
+ */
+static int pcap_dma_xfer(
+ volatile zynq_devcfg_regs *regs,
+ uint32_t *src,
+ size_t src_len,
+ uint32_t *dst,
+ size_t dst_len
+)
+{
+#ifdef ZYNQ_DEVCFG_DEBUG
+ printf( "DMA TRANSFER REQUESTED:\n" );
+ printf( "Source: %p\n", src );
+ printf( "Source length: %zu\n", src_len );
+ printf( "Destination: %p\n", dst );
+ printf( "Destination length: %zu\n", dst_len );
+#endif /* ZYNQ_DEVCFG_DEBUG */
+
+ if ( ZYNQ_DEVCFG_DMA_SRC_LEN_LEN( src_len ) != src_len )
+ return -1;
+ if ( ZYNQ_DEVCFG_DMA_DEST_LEN_LEN( dst_len ) != dst_len )
+ return -1;
+
+ /* Check if the command queue is full */
+ if ( ZYNQ_DEVCFG_STATUS_DMA_CMD_Q_F( regs->status ) )
+ {
+ WARN( "Zynq DMA queue full\n" );
+ return -2;
+ }
+
+ /* Order is important */
+ regs->dma_src_addr = (uint32_t)src;
+ regs->dma_dst_addr = (uint32_t)dst;
+ regs->dma_src_len = ZYNQ_DEVCFG_DMA_SRC_LEN_LEN( src_len );
+ regs->dma_dest_len = ZYNQ_DEVCFG_DMA_DEST_LEN_LEN( dst_len );
+
+ return 0;
+}
+
+static int pcap_dma_xfer_wait_and_check(
+ volatile zynq_devcfg_regs *regs
+)
+{
+ uint32_t int_sts;
+ rtems_status_code status;
+
+ /* NOTE: The ISR will handle acknowledging the transfer. */
+ regs->int_mask &= ~ZYNQ_DEVCFG_INT_DMA_DONE_INT;
+ status = rtems_semaphore_obtain(
+ data.sem_id_int_wait,
+ RTEMS_WAIT,
+ INT_TIMEOUT
+ );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ regs->int_mask |= ZYNQ_DEVCFG_INT_DMA_DONE_INT;
+ WARN( "DMA timed out\n" );
+ return -1;
+ }
+
+ /* TODO: More descriptive error handling */
+ int_sts = regs->int_sts;
+ if (
+ ZYNQ_DEVCFG_INT_AXI_WERR_INT_GET( int_sts )
+ || ZYNQ_DEVCFG_INT_AXI_RTO_INT_GET( int_sts )
+ || ZYNQ_DEVCFG_INT_AXI_RERR_INT_GET( int_sts )
+ || ZYNQ_DEVCFG_INT_RX_FIFO_OV_INT_GET( int_sts )
+ || ZYNQ_DEVCFG_INT_DMA_CMD_ERR_INT_GET( int_sts )
+ || ZYNQ_DEVCFG_INT_DMA_Q_OV_INT_GET( int_sts )
+ || ZYNQ_DEVCFG_INT_P2D_LEN_ERR_INT_GET( int_sts )
+ || ZYNQ_DEVCFG_INT_PCFG_HMAC_ERR_INT_GET( int_sts )
+ )
+ return -2;
+
+ return 0;
+}
+
+/**
+ * @brief Configure the PCAP controller.
+ */
+static void pl_init(
+ volatile zynq_devcfg_regs *regs
+)
+{
+ regs->ctrl = ZYNQ_DEVCFG_CTRL_PCAP_MODE( 1 ) |
+ ZYNQ_DEVCFG_CTRL_PCAP_PR( ZYNQ_DEVCFG_CTRL_PCAP_PR_PCAP ) |
+ ZYNQ_DEVCFG_CTRL_RESERVED_BITS | regs->ctrl;
+ /* Disable loopback */
+ regs->mctrl = ZYNQ_DEVCFG_MCTRL_SET(
+ regs->mctrl,
+ ~ZYNQ_DEVCFG_MCTRL_INT_PCAP_LPBK( 1 ) & regs->mctrl
+ );
+ /* Clear all interrupts */
+ regs->int_sts = ZYNQ_DEVCFG_INT_ALL;
+
+ if ( !data.secure )
+ {
+ if ( ZYNQ_DEVCFG_CTRL_QUARTER_PCAP_RATE_EN( regs->ctrl ) )
+ regs->ctrl = ( ~ZYNQ_DEVCFG_CTRL_QUARTER_PCAP_RATE_EN( 1 ) & regs->ctrl )
+ | ZYNQ_DEVCFG_CTRL_RESERVED_BITS;
+ }
+ else
+ {
+ if ( !ZYNQ_DEVCFG_CTRL_QUARTER_PCAP_RATE_EN( regs->ctrl ) )
+ regs->ctrl = ZYNQ_DEVCFG_CTRL_QUARTER_PCAP_RATE_EN( 1 ) | regs->ctrl
+ | ZYNQ_DEVCFG_CTRL_RESERVED_BITS;
+ }
+}
+
+/**
+ * @brief Clear the FPGA's configuration.
+ *
+ * @retval 0 Success
+ * @retval -1 PCAP intialization timeout.
+ * @retval -2 PCAP deinitialization timeout.
+ * @retval -3 PCAP reinitialization timeout.
+ * @retval -4 Device reset timeout.
+ */
+static int pl_clear(
+ volatile zynq_devcfg_regs *regs
+)
+{
+ /* TODO: Check that controller is available */
+ rtems_status_code status;
+
+ regs->ctrl = ZYNQ_DEVCFG_CTRL_PCFG_PROG_B( 1 ) |
+ ZYNQ_DEVCFG_CTRL_RESERVED_BITS | regs->ctrl;
+ regs->int_mask &= ~ZYNQ_DEVCFG_INT_PCFG_INIT_PE_INT;
+ status = rtems_semaphore_obtain(
+ data.sem_id_int_wait,
+ RTEMS_WAIT,
+ INT_TIMEOUT
+ );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ WARN( "PCAP init timed out\n" );
+ regs->int_mask |= ZYNQ_DEVCFG_INT_PCFG_INIT_PE_INT;
+ return -1;
+ }
+
+ regs->ctrl = ( ~ZYNQ_DEVCFG_CTRL_PCFG_PROG_B( 1 ) & regs->ctrl ) |
+ ZYNQ_DEVCFG_CTRL_RESERVED_BITS;
+ regs->int_mask &= ~ZYNQ_DEVCFG_INT_PCFG_INIT_NE_INT;
+ status = rtems_semaphore_obtain(
+ data.sem_id_int_wait,
+ RTEMS_WAIT,
+ INT_TIMEOUT
+ );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ WARN( "PCAP deinit timed out\n" );
+ regs->int_mask |= ZYNQ_DEVCFG_INT_PCFG_INIT_NE_INT;
+ return -2;
+ }
+
+ regs->ctrl = ZYNQ_DEVCFG_CTRL_PCFG_PROG_B( 1 ) |
+ ZYNQ_DEVCFG_CTRL_RESERVED_BITS | regs->ctrl;
+ regs->int_mask &= ~ZYNQ_DEVCFG_INT_PCFG_INIT_PE_INT;
+ status = rtems_semaphore_obtain(
+ data.sem_id_int_wait,
+ RTEMS_WAIT,
+ INT_TIMEOUT
+ );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ WARN( "PCAP reinit timed out\n" );
+ regs->int_mask |= ZYNQ_DEVCFG_INT_PCFG_INIT_PE_INT;
+ return -3;
+ }
+
+ regs->int_mask &= ~ZYNQ_DEVCFG_INT_PSS_CFG_RESET_B_INT;
+ status = rtems_semaphore_obtain(
+ data.sem_id_int_wait,
+ RTEMS_WAIT,
+ INT_TIMEOUT
+ );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ WARN( "PSS_CFG_RESET_B_INT timed out\n" );
+ regs->int_mask |= ZYNQ_DEVCFG_INT_PSS_CFG_RESET_B_INT;
+ return -4;
+ }
+
+ return 0;
+}
+
+/* TODO: Check that PL power is on.
+ * TODO: Check for configuration differences between silicon revisions.
+ */
+rtems_device_driver zynq_devcfg_init(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+)
+{
+ rtems_status_code status;
+
+ (void) args;
+
+ status = rtems_io_register_name( ZYNQ_DEVCFG_NAME, major, minor );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ status = RTEMS_INVALID_NAME;
+ goto err;
+ }
+
+ data.regs = (zynq_devcfg_regs *)ZYNQ_DEVCFG_BASE_ADDR;
+ data.secure = false;
+ status = rtems_semaphore_create(
+ rtems_build_name( 'D', 'e', 'v', 'C' ),
+ 1,
+ RTEMS_LOCAL | RTEMS_SIMPLE_BINARY_SEMAPHORE,
+ RTEMS_NO_PRIORITY,
+ &data.sem_id_open
+ );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ status = RTEMS_UNSATISFIED;
+ goto err;
+ }
+ status = rtems_semaphore_create(
+ rtems_build_name( 'D', 'v', 'C', 'i' ),
+ 1,
+ RTEMS_LOCAL | RTEMS_SIMPLE_BINARY_SEMAPHORE,
+ RTEMS_NO_PRIORITY,
+ &data.sem_id_internal
+ );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ status = RTEMS_UNSATISFIED;
+ goto err_sem_internal;
+ }
+ status = rtems_semaphore_create(
+ rtems_build_name( 'D', 'v', 'C', 'w' ),
+ 0,
+ RTEMS_LOCAL | RTEMS_SIMPLE_BINARY_SEMAPHORE,
+ RTEMS_NO_PRIORITY,
+ &data.sem_id_int_wait
+ );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ status = RTEMS_UNSATISFIED;
+ goto err_sem_wait;
+ }
+
+ /* Mask and clear all interrupts and install handler */
+ data.regs->int_mask |= ZYNQ_DEVCFG_INT_ALL;
+ data.regs->int_sts = ZYNQ_DEVCFG_INT_ALL;
+ status = rtems_interrupt_handler_install(
+ ZYNQ_DEVCFG_INTERRUPT_VECTOR,
+ "DevC ISR",
+ RTEMS_INTERRUPT_UNIQUE,
+ zynq_devcfg_isr,
+ NULL
+ );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ WARN( "Failed to assign interrupt handler\n" );
+ status = RTEMS_INTERNAL_ERROR;
+ goto err_intr;
+ }
+
+ return RTEMS_SUCCESSFUL;
+err_intr:
+ rtems_semaphore_delete( data.sem_id_int_wait );
+err_sem_wait:
+ rtems_semaphore_delete( data.sem_id_internal );
+err_sem_internal:
+ rtems_semaphore_delete( data.sem_id_open );
+err:
+ return status;
+}
+
+rtems_device_driver zynq_devcfg_open(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+)
+{
+ rtems_status_code rstatus;
+
+ (void) major;
+ (void) minor;
+ (void) args;
+
+ rstatus = rtems_semaphore_obtain(
+ data.sem_id_open,
+ RTEMS_NO_WAIT,
+ 0
+ );
+ if ( RTEMS_SUCCESSFUL == rstatus )
+ return RTEMS_SUCCESSFUL;
+ else if ( RTEMS_UNSATISFIED == rstatus )
+ return RTEMS_RESOURCE_IN_USE;
+ else
+ return RTEMS_INTERNAL_ERROR;
+}
+
+rtems_device_driver zynq_devcfg_close(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+)
+{
+ rtems_status_code rstatus;
+
+ (void) major;
+ (void) minor;
+ (void) args;
+
+ rstatus = rtems_semaphore_release( data.sem_id_open );
+ if ( RTEMS_SUCCESSFUL != rstatus )
+ {
+ WARN( rtems_status_text( rstatus ) );
+ return RTEMS_INTERNAL_ERROR;
+ }
+ else
+ return RTEMS_SUCCESSFUL;
+}
+
+rtems_device_driver zynq_devcfg_read(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+)
+{
+ rtems_libio_rw_args_t *rw_args;
+ int status;
+ rtems_status_code rstatus;
+ rtems_status_code final_status;
+ uint8_t *data_buf;
+
+ (void) major;
+ (void) minor;
+ rw_args = args;
+ rw_args->bytes_moved = 0;
+
+ rstatus = rtems_semaphore_obtain( data.sem_id_internal, RTEMS_NO_WAIT, 0 );
+ if ( RTEMS_SUCCESSFUL != rstatus )
+ {
+ final_status = RTEMS_RESOURCE_IN_USE;
+ goto err_obtain;
+ }
+
+ if ( rw_args->count < 4 )
+ {
+ final_status = RTEMS_INVALID_SIZE;
+ goto err_insane;
+ }
+ /* TODO: It might be valid to read configuration registers while the PL is
+ * not programmed.
+ */
+ /* PCFG_DONE must be asserted before readback */
+ if ( !ZYNQ_DEVCFG_INT_PCFG_DONE_INT_GET( data.regs->int_sts ) )
+ {
+ WARN( "read attempted when FPGA configuration not done\n" );
+ final_status = RTEMS_IO_ERROR;
+ goto err_insane;
+ }
+
+ if ( 0 != (size_t)rw_args->buffer % ZYNQ_DEVCFG_PCAP_DMA_ALIGN )
+ data_buf = dma_buf_get( rw_args->count );
+ else
+ data_buf = (uint8_t *)rw_args->buffer;
+
+ status = pcap_dma_xfer(
+ data.regs,
+ (uint32_t *)ZYNQ_DEVCFG_BITSTREAM_ADDR,
+ rw_args->count / 4,
+ (uint32_t *)( (uint32_t)data_buf | 1 ),
+ rw_args->count / 4
+ );
+ if ( status )
+ {
+ WARN( "DMA setup FAILED\n" );
+ final_status = RTEMS_IO_ERROR;
+ goto err_dma;
+ }
+ else
+ {
+ status = pcap_dma_xfer_wait_and_check( data.regs );
+ if ( status )
+ {
+ WARN( "DMA FAILED\n" );
+ final_status = RTEMS_IO_ERROR;
+ goto err_dma;
+ }
+ }
+
+ /* Ensure stale data is not read */
+ rtems_cache_invalidate_multiple_data_lines( data_buf, rw_args->count );
+
+ final_status = RTEMS_SUCCESSFUL;
+ rw_args->bytes_moved = rw_args->count;
+ if ( data_buf != (uint8_t *)rw_args->buffer )
+ memcpy( rw_args->buffer, data_buf, rw_args->count );
+err_dma:
+ if ( data_buf != (uint8_t *)rw_args->buffer )
+ dma_buf_release();
+ rstatus = rtems_semaphore_release( data.sem_id_internal );
+err_insane:
+ if ( RTEMS_SUCCESSFUL != rstatus )
+ final_status = RTEMS_INTERNAL_ERROR;
+err_obtain:
+ return final_status;
+}
+
+rtems_device_driver zynq_devcfg_write(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+)
+{
+ rtems_libio_rw_args_t *rw_args;
+ int status;
+ rtems_status_code rstatus;
+ rtems_status_code final_status;
+ uint8_t *data_buf;
+
+ (void) major;
+ (void) minor;
+ rw_args = args;
+ rw_args->bytes_moved = 0;
+
+ rstatus = rtems_semaphore_obtain( data.sem_id_internal, RTEMS_NO_WAIT, 0 );
+ if ( RTEMS_SUCCESSFUL != rstatus )
+ {
+ final_status = RTEMS_RESOURCE_IN_USE;
+ goto err_obtain;
+ }
+
+ if ( 0 != (size_t)rw_args->buffer % ZYNQ_DEVCFG_PCAP_DMA_ALIGN )
+ {
+ data_buf = dma_buf_get( rw_args->count );
+ memcpy( data_buf, rw_args->buffer, rw_args->count );
+ }
+ else
+ data_buf = (uint8_t *)rw_args->buffer;
+
+ /* Ensure data is available to the DMA engine */
+ rtems_cache_flush_multiple_data_lines( data_buf, rw_args->count );
+
+ status = pcap_dma_xfer(
+ data.regs,
+ (uint32_t *)( (uint32_t)data_buf | 1 ),
+ rw_args->count / 4,
+ (uint32_t *)ZYNQ_DEVCFG_BITSTREAM_ADDR,
+ rw_args->count / 4
+ );
+ if ( status )
+ {
+ final_status = RTEMS_IO_ERROR;
+ goto err_dma;
+ }
+ else
+ {
+ status = pcap_dma_xfer_wait_and_check( data.regs );
+ if ( status )
+ {
+ final_status = RTEMS_IO_ERROR;
+ goto err_dma;
+ }
+ }
+
+ final_status = RTEMS_SUCCESSFUL;
+ rw_args->bytes_moved = rw_args->count;
+err_dma:
+ if ( data_buf != (uint8_t *)rw_args->buffer )
+ dma_buf_release();
+ rstatus = rtems_semaphore_release( data.sem_id_internal );
+ if ( RTEMS_SUCCESSFUL != rstatus )
+ final_status = RTEMS_INTERNAL_ERROR;
+err_obtain:
+ return final_status;
+}
+
+rtems_device_driver zynq_devcfg_control(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+)
+{
+ rtems_libio_ioctl_args_t *ioctl_args;
+ char *str;
+ int status;
+ rtems_status_code rstatus;
+ rtems_status_code final_status;
+
+ (void) major;
+ (void) minor;
+ ioctl_args = args;
+
+ rstatus = rtems_semaphore_obtain( data.sem_id_internal, RTEMS_NO_WAIT, 0 );
+ if ( RTEMS_UNSATISFIED == rstatus )
+ {
+ ioctl_args->ioctl_return = -1;
+ return RTEMS_RESOURCE_IN_USE;
+ }
+ else if ( RTEMS_SUCCESSFUL != rstatus )
+ {
+ ioctl_args->ioctl_return = -1;
+ return RTEMS_INTERNAL_ERROR;
+ }
+
+ final_status = RTEMS_SUCCESSFUL;
+ ioctl_args->ioctl_return = 0;
+ switch ( ioctl_args->command ) {
+ case ZYNQ_DEVCFG_IOCTL_VERSION:
+ str = ioctl_args->buffer;
+ switch( ZYNQ_DEVCFG_MCTRL_PS_VERSION_GET( data.regs->mctrl ) ) {
+ case ZYNQ_DEVCFG_MCTRL_PS_VERSION_1_0:
+ strncpy( str, "1.0", ZYNQ_DEVCFG_IOCTL_VERSION_MAX_LEN );
+ break;
+ case ZYNQ_DEVCFG_MCTRL_PS_VERSION_2_0:
+ strncpy( str, "2.0", ZYNQ_DEVCFG_IOCTL_VERSION_MAX_LEN );
+ break;
+ case ZYNQ_DEVCFG_MCTRL_PS_VERSION_3_0:
+ strncpy( str, "3.0", ZYNQ_DEVCFG_IOCTL_VERSION_MAX_LEN );
+ break;
+ case ZYNQ_DEVCFG_MCTRL_PS_VERSION_3_1:
+ strncpy( str, "3.1", ZYNQ_DEVCFG_IOCTL_VERSION_MAX_LEN );
+ break;
+ default:
+ strncpy( str, "???", ZYNQ_DEVCFG_IOCTL_VERSION_MAX_LEN );
+ break;
+ }
+ break;
+ case ZYNQ_DEVCFG_IOCTL_FPGA_PROGRAM_PRE:
+ pl_init( data.regs );
+ /* Hold FPGA clocks in reset */
+ zynq_slcr_fpga_clk_rst( 0xf );
+ /* Enable PS to PL level shifters */
+ zynq_slcr_level_shifter_enable( ZYNQ_SLCR_LVL_SHFTR_EN_DISABLE );
+ zynq_slcr_level_shifter_enable( ZYNQ_SLCR_LVL_SHFTR_EN_PS_TO_PL );
+ status = pl_clear( data.regs );
+ if ( 0 != status )
+ {
+ ioctl_args->ioctl_return = -1;
+ final_status = RTEMS_UNSATISFIED;
+ }
+ break;
+ case ZYNQ_DEVCFG_IOCTL_FPGA_PROGRAM_POST:
+ /* Enable all PS-PL level shifters */
+ zynq_slcr_level_shifter_enable( ZYNQ_SLCR_LVL_SHFTR_EN_ALL );
+ /* Release FPGA clocks from reset */
+ zynq_slcr_fpga_clk_rst( 0 );
+ break;
+ case ZYNQ_DEVCFG_IOCTL_FPGA_PROGRAM_WAIT_DONE:
+ data.regs->int_mask &= ~ZYNQ_DEVCFG_INT_PCFG_DONE_INT;
+ status = rtems_semaphore_obtain(
+ data.sem_id_int_wait,
+ RTEMS_WAIT,
+ INT_TIMEOUT
+ );
+ if ( RTEMS_SUCCESSFUL != status )
+ {
+ ioctl_args->ioctl_return = -1;
+ data.regs->int_mask |= ZYNQ_DEVCFG_INT_PCFG_DONE_INT;
+ final_status = RTEMS_TIMEOUT;
+ }
+ break;
+ case ZYNQ_DEVCFG_IOCTL_SET_SECURE:
+ data.secure = *(bool *)ioctl_args->buffer;
+ break;
+ case ZYNQ_DEVCFG_IOCTL_BITSTREAM_LEN_GET:
+ *(size_t *)ioctl_args->buffer = get_bitstream_len();
+ break;
+ default:
+ ioctl_args->ioctl_return = -1;
+ final_status = RTEMS_INVALID_NAME; /* Maps to EINVAL */
+ break;
+ }
+
+ rstatus = rtems_semaphore_release( data.sem_id_internal );
+ if ( rstatus != RTEMS_SUCCESSFUL )
+ WARN( "Failed to release internal semaphore\n" );
+ return final_status;
+}
diff --git a/c/src/lib/libbsp/arm/xilinx-zynq/include/zynq-devcfg-regs.h
b/c/src/lib/libbsp/arm/xilinx-zynq/include/zynq-devcfg-regs.h
new file mode 100644
index 0000000..d3601d6
--- /dev/null
+++ b/c/src/lib/libbsp/arm/xilinx-zynq/include/zynq-devcfg-regs.h
@@ -0,0 +1,194 @@
+/**
+ * @file
+ * @ingroup zynq_devcfg
+ * @brief Device configuration interface register definitions.
+ */
+
+/*
+ * Copyright (c) 2016
+ * NSF Center for High-Performance Reconfigurable Computing (CHREC),
+ * University of Florida. All rights reserved.
+ * Copyright (c) 2017
+ * NSF Center for High-Performance Reconfigurable Computing (CHREC),
+ * University of Pittsburgh. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation
+ * are those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of CHREC.
+ *
+ * Author: Patrick Gauvin <gau...@hcs.ufl.edu>
+ */
+
+/**
+ * @defgroup zynq_devcfg_regs Device Configuration Interface Register
Definitions
+ * @ingroup zynq_devcfg
+ * @brief Device Configuration Interface Register Definitions
+ */
+
+#ifndef LIBBSP_ARM_XILINX_ZYNQ_DEVCFG_REGS_H
+#define LIBBSP_ARM_XILINX_ZYNQ_DEVCFG_REGS_H
+
+#include <bsp/utility.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/* Zynq-7000 series devcfg address */
+#define ZYNQ_DEVCFG_BASE_ADDR 0xF8007000UL
+/* For use with the PCAP DMA */
+#define ZYNQ_DEVCFG_BITSTREAM_ADDR 0xFFFFFFFFUL
+/* PCAP DMA transfers must be 64-byte aligned */
+#define ZYNQ_DEVCFG_PCAP_DMA_ALIGN 64
+#define ZYNQ_DEVCFG_INTERRUPT_VECTOR 40
+
+typedef struct {
+ uint32_t ctrl;
+#define ZYNQ_DEVCFG_CTRL_FORCE_RST( val ) BSP_FLD32( val, 31, 31 )
+#define ZYNQ_DEVCFG_CTRL_FORCE_RST_GET( reg ) BSP_FLD32GET( reg, 31, 31 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_PROG_B_GET( reg ) BSP_FLD32GET( reg, 30, 30 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_PROG_B( val ) BSP_FLD32( val, 30, 30 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_POR_CNT_4K_GET( reg ) BSP_FLD32GET( reg, 29, 29 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_POR_CNT_4K( val ) BSP_FLD32( val, 29, 29 )
+#define ZYNQ_DEVCFG_CTRL_PCAP_PR( val ) BSP_FLD32( val, 27, 27 )
+#define ZYNQ_DEVCFG_CTRL_PCAP_PR_GET( reg ) BSP_FLD32GET( reg, 27, 27 )
+#define ZYNQ_DEVCFG_CTRL_PCAP_PR_ICAP ( 0 )
+#define ZYNQ_DEVCFG_CTRL_PCAP_PR_PCAP ( 1 )
+#define ZYNQ_DEVCFG_CTRL_PCAP_MODE( val ) BSP_FLD32( val, 26, 26 )
+#define ZYNQ_DEVCFG_CTRL_PCAP_MODE_GET( reg ) BSP_FLD32GET( reg, 26, 26 )
+#define ZYNQ_DEVCFG_CTRL_QUARTER_PCAP_RATE_EN( val ) BSP_FLD32( val, 25, 25 )
+#define ZYNQ_DEVCFG_CTRL_QUARTER_PCAP_RATE_EN_GET( reg ) \
+ BSP_FLD32GET( reg, 25, 25 )
+#define ZYNQ_DEVCFG_CTRL_MULTIBOOT_EN( val ) BSP_FLD32( val, 24, 24 )
+#define ZYNQ_DEVCFG_CTRL_MULTIBOOT_EN_GET( reg ) BSP_FLD32GET( reg, 24, 24 )
+#define ZYNQ_DEVCFG_CTRL_JTAG_CHAIN_DIS( val ) BSP_FLD32( val, 23, 23 )
+#define ZYNQ_DEVCFG_CTRL_JTAG_CHAIN_DIS_GET( reg ) BSP_FLD32GET( reg, 23, 23 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_AES_FUSE( val ) BSP_FLD32( val, 12, 12 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_AES_FUSE_GET( reg ) BSP_FLD32GET( reg, 12, 12 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_AES_FUSE_BBRAM ( 0 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_AES_FUSE_EFUSE ( 1 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_AES_EN( val ) BSP_FLD32( val, 9, 11 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_AES_EN_GET( reg ) BSP_FLD32GET( reg, 9, 11 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_AES_EN_ENABLE ( 0x3 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_AES_EN_DISABLE ( 0x0 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_AES_EN_LOCKDOWN ( 0x1 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_SEU_EN( val ) BSP_FLD32( val, 8, 8 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_SEU_EN_GET( reg ) BSP_FLD32GET( reg, 8, 8 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_SEC_EN_GET( reg ) BSP_FLD32GET( reg, 7, 7 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_SPNIDEN( val ) BSP_FLD32( val, 6, 6 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_SPNIDEN_GET( reg ) BSP_FLD32GET( reg, 6, 6 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_SPIDEN( val ) BSP_FLD32( val, 5, 5 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_SPIDEN_GET( reg ) BSP_FLD32GET( reg, 5, 5 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_NIDEN( val ) BSP_FLD32( val, 4, 4 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_NIDEN_GET( reg ) BSP_FLD32GET( reg, 4, 4 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_DBGEN( val ) BSP_FLD32( val, 3, 3 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_DBGEN_GET( reg ) BSP_FLD32GET( reg, 3, 3 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_DAP_EN( val ) BSP_FLD32( val, 0, 2 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_DAP_EN_GET( reg ) BSP_FLD32GET( reg, 0, 2 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_DAP_EN_ENABLE ( 0x3 )
+#define ZYNQ_DEVCFG_CTRL_PCFG_DAP_EN_BYPASS ( 0x0 )
+#define ZYNQ_DEVCFG_CTRL_RESERVED_BITS ( 0x6000 )
+ uint32_t lock;
+ uint32_t cfg;
+ /* int_sts and int_mask directly overlap, so they share the ZYNQ_DEVCFG_INT_*
+ * macros */
+ uint32_t int_sts;
+ uint32_t int_mask;
+#define ZYNQ_DEVCFG_INT_PSS_CFG_RESET_B_INT BSP_BIT32( 27 )
+#define ZYNQ_DEVCFG_INT_PSS_CFG_RESET_B_INT_GET( reg ) \
+ BSP_FLD32GET( reg, 27, 27 )
+#define ZYNQ_DEVCFG_INT_AXI_WERR_INT_GET( reg ) BSP_FLD32GET( reg, 22, 22 )
+#define ZYNQ_DEVCFG_INT_AXI_RTO_INT_GET( reg ) BSP_FLD32GET( reg, 21, 21 )
+#define ZYNQ_DEVCFG_INT_AXI_RERR_INT_GET( reg ) BSP_FLD32GET( reg, 20, 20 )
+#define ZYNQ_DEVCFG_INT_RX_FIFO_OV_INT_GET( reg ) \
+ BSP_FLD32GET( reg, 18, 18 )
+#define ZYNQ_DEVCFG_INT_DMA_CMD_ERR_INT_GET( reg ) \
+ BSP_FLD32GET( reg, 15, 15 )
+#define ZYNQ_DEVCFG_INT_DMA_Q_OV_INT_GET( reg ) BSP_FLD32GET( reg, 14, 14 )
+#define ZYNQ_DEVCFG_INT_DMA_DONE_INT BSP_BIT32( 13 )
+#define ZYNQ_DEVCFG_INT_DMA_DONE_INT_GET( reg ) BSP_FLD32GET( reg, 13, 13 )
+#define ZYNQ_DEVCFG_INT_D_P_DONE_INT BSP_BIT32( 12 )
+#define ZYNQ_DEVCFG_INT_D_P_DONE_INT_GET( reg ) BSP_FLD32GET( reg, 12, 12 )
+#define ZYNQ_DEVCFG_INT_P2D_LEN_ERR_INT_GET( reg ) \
+ BSP_FLD32GET( reg, 11, 11 )
+#define ZYNQ_DEVCFG_INT_PCFG_HMAC_ERR_INT_GET( reg ) \
+ BSP_FLD32GET( reg, 6, 6 )
+#define ZYNQ_DEVCFG_INT_PCFG_SEU_ERR_INT_GET( reg ) \
+ BSP_FLD32GET( reg, 5, 5 )
+#define ZYNQ_DEVCFG_INT_PCFG_POR_B_INT_GET( reg ) BSP_FLD32GET( reg, 4, 4 )
+#define ZYNQ_DEVCFG_INT_PCFG_CFG_RST_INT_GET( reg ) \
+ BSP_FLD32GET( reg, 3, 3 )
+#define ZYNQ_DEVCFG_INT_PCFG_DONE_INT BSP_BIT32( 2 )
+#define ZYNQ_DEVCFG_INT_PCFG_DONE_INT_GET( reg ) BSP_FLD32GET( reg, 2, 2 )
+#define ZYNQ_DEVCFG_INT_PCFG_INIT_PE_INT BSP_BIT32( 1 )
+#define ZYNQ_DEVCFG_INT_PCFG_INIT_PE_INT_GET( reg ) \
+ BSP_FLD32GET( reg, 1, 1 )
+#define ZYNQ_DEVCFG_INT_PCFG_INIT_NE_INT BSP_BIT32( 0 )
+#define ZYNQ_DEVCFG_INT_PCFG_INIT_NE_INT_GET( reg ) \
+ BSP_FLD32GET( reg, 0, 0 )
+#define ZYNQ_DEVCFG_INT_ALL ( 0xf8f7f87f )
+ uint32_t status;
+#define ZYNQ_DEVCFG_STATUS_DMA_CMD_Q_F( val ) BSP_FLD32( val, 31, 31 )
+#define ZYNQ_DEVCFG_STATUS_DMA_CMD_Q_F_GET( reg ) BSP_FLD32GET( reg, 31, 31 )
+#define ZYNQ_DEVCFG_STATUS_PCFG_INIT_GET( reg ) BSP_FLD32GET( reg, 4, 4 )
+ uint32_t dma_src_addr;
+ uint32_t dma_dst_addr;
+ uint32_t dma_src_len;
+#define ZYNQ_DEVCFG_DMA_SRC_LEN_LEN( val ) BSP_FLD32( val, 0, 26 )
+ uint32_t dma_dest_len; /* (sic) */
+#define ZYNQ_DEVCFG_DMA_DEST_LEN_LEN( val ) BSP_FLD32( val, 0, 26 )
+ uint32_t reserved0;
+ uint32_t multiboot_addr;
+ uint32_t reserved1;
+ uint32_t unlock;
+ uint32_t reserved2[18];
+ uint32_t mctrl;
+#define ZYNQ_DEVCFG_MCTRL_PS_VERSION_GET( reg ) BSP_FLD32GET( reg, 28, 31 )
+#define ZYNQ_DEVCFG_MCTRL_PS_VERSION_1_0 0x0
+#define ZYNQ_DEVCFG_MCTRL_PS_VERSION_2_0 0x1
+#define ZYNQ_DEVCFG_MCTRL_PS_VERSION_3_0 0x2
+#define ZYNQ_DEVCFG_MCTRL_PS_VERSION_3_1 0x3
+#define ZYNQ_DEVCFG_MCTRL_PCFG_POR_B_GET( reg ) BSP_FLD32GET( reg, 8, 8 )
+#define ZYNQ_DEVCFG_MCTRL_INT_PCAP_LPBK_GET( reg ) BSP_FLD32GET( reg, 4, 4 )
+#define ZYNQ_DEVCFG_MCTRL_INT_PCAP_LPBK( val ) BSP_FLD32( val, 4, 4 )
+#define ZYNQ_DEVCFG_MCTRL_RESERVED_SET_BITS ( 0x800000 )
+#define ZYNQ_DEVCFG_MCTRL_RESERVED_UNSET_BITS ( 0x3 )
+#define ZYNQ_DEVCFG_MCTRL_SET( reg, val ) ( ( ( reg ) & \
+ ~ZYNQ_DEVCFG_MCTRL_RESERVED_UNSET_BITS ) | \
+ ZYNQ_DEVCFG_MCTRL_RESERVED_SET_BITS | ( val ) )
+ uint32_t reserved3[32];
+ uint32_t xadcif_cfg;
+ uint32_t xadcif_int_sts;
+ uint32_t xadcif_int_mask;
+ uint32_t xadcif_msts;
+ uint32_t xadcif_cmdfifo;
+ uint32_t xadcif_rdfifo;
+ uint32_t xadcif_mctrl;
+} zynq_devcfg_regs;
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* LIBBSP_ARM_XILINX_ZYNQ_DEVCFG_REGS_H */
diff --git a/c/src/lib/libbsp/arm/xilinx-zynq/include/zynq-devcfg.h
b/c/src/lib/libbsp/arm/xilinx-zynq/include/zynq-devcfg.h
new file mode 100644
index 0000000..9da7e2b
--- /dev/null
+++ b/c/src/lib/libbsp/arm/xilinx-zynq/include/zynq-devcfg.h
@@ -0,0 +1,160 @@
+/**
+ * @file
+ * @ingroup zynq_devcfg
+ * @brief Device configuration support.
+ *
+ * Provides support for the Zynq7000 series device configuration interface
+ * controller. PCAP command sequences are written using the write interface,
+ * and PCAP responses are retrieved with the read interface. The driver can be
+ * used for reconfiguration of the FPGA, and also reading FPGA configuration
+ * data for error checking.
+ */
+
+/*
+ * Copyright (c) 2016
+ * NSF Center for High-Performance Reconfigurable Computing (CHREC),
+ * University of Florida. All rights reserved.
+ * Copyright (c) 2017
+ * NSF Center for High-Performance Reconfigurable Computing (CHREC),
+ * University of Pittsburgh. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation
+ * are those of the authors and should not be interpreted as representing
+ * official policies, either expressed or implied, of CHREC.
+ *
+ * Author: Patrick Gauvin <gau...@hcs.ufl.edu>
+ */
+
+/**
+ * @defgroup zynq_devcfg Device Configuration Interface Support
+ * @ingroup arm_zynq
+ * @brief Device Configuration Interface Support
+ */
+
+#ifndef LIBBSP_ARM_XILINX_ZYNQ_DEVCFG_H
+#define LIBBSP_ARM_XILINX_ZYNQ_DEVCFG_H
+
+#include <rtems/libio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#define ZYNQ_DEVCFG_NAME "/dev/devcfg"
+#define ZYNQ_DEVCFG_DRIVER_TABLE_ENTRY \
+ { zynq_devcfg_init, zynq_devcfg_open, zynq_devcfg_close, zynq_devcfg_read, \
+ zynq_devcfg_write, zynq_devcfg_control }
+
+/** @brief Zynq configuration frame length in bytes */
+#define ZYNQ_DEVCFG_CONFIG_FRAME_LEN ( 101 * 4 )
+
+#define ZYNQ_DEVCFG_IOCTL_VERSION_MAX_LEN 16
+
+/** @brief Bitstream lengths in bytes */
+enum zynq_devcfg_bitstream_length {
+ ZYNQ_DEVCFG_BITSTREAM_LEN_7z007s = 16669920UL / 8,
+ ZYNQ_DEVCFG_BITSTREAM_LEN_7z012s = 28085344UL / 8,
+ ZYNQ_DEVCFG_BITSTREAM_LEN_7z014s = 32364512UL / 8,
+ ZYNQ_DEVCFG_BITSTREAM_LEN_7z010 = 16669920UL / 8,
+ ZYNQ_DEVCFG_BITSTREAM_LEN_7z015 = 28085344UL / 8,
+ ZYNQ_DEVCFG_BITSTREAM_LEN_7z020 = 32364512UL / 8,
+ ZYNQ_DEVCFG_BITSTREAM_LEN_7z030 = 47839328UL / 8,
+ ZYNQ_DEVCFG_BITSTREAM_LEN_7z035 = 106571232UL / 8,
+ ZYNQ_DEVCFG_BITSTREAM_LEN_7z045 = 106571232UL / 8,
+ ZYNQ_DEVCFG_BITSTREAM_LEN_7z100 = 139330784UL / 8
+};
+
+enum zynq_devcfg_ioctl {
+ /** @brief Argument: Buffer for character string of at least
+ * ZYNQ_DEVCFG_IOCTL_VERSION_MAX_LEN bytes.
+ */
+ ZYNQ_DEVCFG_IOCTL_VERSION,
+ /** @brief Argument: size_t. */
+ ZYNQ_DEVCFG_IOCTL_BITSTREAM_LEN_GET,
+ /** @brief Argument: None. */
+ ZYNQ_DEVCFG_IOCTL_FPGA_PROGRAM_PRE,
+ /** @brief Argument: None. */
+ ZYNQ_DEVCFG_IOCTL_FPGA_PROGRAM_POST,
+ /** @brief Agument: None. */
+ ZYNQ_DEVCFG_IOCTL_FPGA_PROGRAM_WAIT_DONE,
+ /** @brief Argument: bool. */
+ ZYNQ_DEVCFG_IOCTL_SET_SECURE
+};
+
+rtems_device_driver zynq_devcfg_init(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+);
+
+rtems_device_driver zynq_devcfg_open(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+);
+
+rtems_device_driver zynq_devcfg_close(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+);
+
+/**
+ * @brief Read from the PCAP controller.
+ *
+ * Readback reads cannot be split into multiple DMA reads, this may cause the
+ * PCAP DMA to exhibit unexpected behavior. Therefore, the read length must
+ * match the preceding command sequence's expected data output length.
+ */
+rtems_device_driver zynq_devcfg_read(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+);
+
+/**
+ * @brief Write to the PCAP controller.
+ *
+ * Data format: dword aligned bistream data or PCAP commands. Bitstream data is
+ * expected to be formatted as Vivado 2016.4 outputs BIN-format bitstreams by
+ * default (not bit-swapped) BUT with the byte order within each dword changed
+ * to little endian. See UG470 for information on data ordering.
+ */
+rtems_device_driver zynq_devcfg_write(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+);
+
+rtems_device_driver zynq_devcfg_control(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *args
+);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* LIBBSP_ARM_XILINX_ZYNQ_DEVCFG_H */
diff --git a/c/src/lib/libbsp/arm/xilinx-zynq/preinstall.am
b/c/src/lib/libbsp/arm/xilinx-zynq/preinstall.am
index 814095f..4eaab68 100644
--- a/c/src/lib/libbsp/arm/xilinx-zynq/preinstall.am
+++ b/c/src/lib/libbsp/arm/xilinx-zynq/preinstall.am
@@ -150,6 +150,14 @@ $(PROJECT_INCLUDE)/bsp/zynq-uart-regs.h:
include/zynq-uart-regs.h $(PROJECT_INCL
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/zynq-uart-regs.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/zynq-uart-regs.h
+$(PROJECT_INCLUDE)/bsp/zynq-devcfg.h: include/zynq-devcfg.h
$(PROJECT_INCLUDE)/bsp/$(dirstamp)
+ $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/zynq-devcfg.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/zynq-devcfg.h
+
+$(PROJECT_INCLUDE)/bsp/zynq-devcfg-regs.h: include/zynq-devcfg-regs.h
$(PROJECT_INCLUDE)/bsp/$(dirstamp)
+ $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/zynq-devcfg-regs.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/zynq-devcfg-regs.h
+
$(PROJECT_INCLUDE)/bsp/zynq-slcr.h: include/zynq-slcr.h
$(PROJECT_INCLUDE)/bsp/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/zynq-slcr.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/zynq-slcr.h
--
2.7.4
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