Took a while to get to but here is a new patch incorporating the feedback.
Sorry to drop this and run but I'm on vacation for a week as soon as I send
this. So don't expect to see responses from me until July 10th or later.
Once I'm back and this is through, expect to see some follow-on patches for
enabling MPU, cache, and lwip support. I have that working and tested but
it needs some cleanup before I'll feel good about a patch.
---
diff --git a/bsps/arm/xilinx-zynqmp-rpu/console/console-config.c
b/bsps/arm/xilinx-zynqmp-rpu/console/console-config.c
new file mode 100644
index 0000000000..469178fd86
--- /dev/null
+++ b/bsps/arm/xilinx-zynqmp-rpu/console/console-config.c
@@ -0,0 +1,128 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2013, 2017 embedded brains GmbH
+ *
+ * Copyright (C) 2019 DornerWorks
+ *
+ * Written by Jeff Kubascik <jeff.kubas...@dornerworks.com>
+ * and Josh Whitehead <josh.whiteh...@dornerworks.com>
+ *
+ * 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.
+ */
+
+#include <rtems/console.h>
+#include <rtems/bspIo.h>
+#include <rtems/sysinit.h>
+
+#include <bsp/irq.h>
+#include <dev/serial/zynq-uart.h>
+
+#include <bspopts.h>
+
+static zynq_uart_context zynqmp_uart_instances[2] = {
+ {
+ .base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER( "Zynq UART 0" ),
+ .regs = (volatile struct zynq_uart *) 0xff000000,
+ .irq = ZYNQMP_IRQ_UART_0
+ }, {
+ .base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER( "Zynq UART 1" ),
+ .regs = (volatile struct zynq_uart *) 0xff010000,
+ .irq = ZYNQMP_IRQ_UART_1
+ }
+};
+
+rtems_status_code console_initialize(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *arg
+)
+{
+ size_t i;
+
+ for (i = 0; i < RTEMS_ARRAY_SIZE(zynqmp_uart_instances); ++i) {
+ char uart[] = "/dev/ttySX";
+
+ uart[sizeof(uart) - 2] = (char) ('0' + i);
+ rtems_termios_device_install(
+ &uart[0],
+ &zynq_uart_handler,
+ NULL,
+ &zynqmp_uart_instances[i].base
+ );
+
+ if (i == BSP_CONSOLE_MINOR) {
+ link(&uart[0], CONSOLE_DEVICE_NAME);
+ }
+ }
+
+ return RTEMS_SUCCESSFUL;
+}
+
+void zynqmp_debug_console_flush(void)
+{
+ zynq_uart_reset_tx_flush(&zynqmp_uart_instances[BSP_CONSOLE_MINOR]);
+}
+
+static void zynqmp_debug_console_out(char c)
+{
+ rtems_termios_device_context *base =
+ &zynqmp_uart_instances[BSP_CONSOLE_MINOR].base;
+
+ zynq_uart_write_polled(base, c);
+}
+
+static void zynqmp_debug_console_init(void)
+{
+ rtems_termios_device_context *base =
+ &zynqmp_uart_instances[BSP_CONSOLE_MINOR].base;
+
+ zynq_uart_initialize(base);
+ BSP_output_char = zynqmp_debug_console_out;
+}
+
+static void zynqmp_debug_console_early_init(char c)
+{
+ rtems_termios_device_context *base =
+ &zynqmp_uart_instances[BSP_CONSOLE_MINOR].base;
+
+ zynq_uart_initialize(base);
+ zynqmp_debug_console_out(c);
+}
+
+static int zynqmp_debug_console_in(void)
+{
+ rtems_termios_device_context *base =
+ &zynqmp_uart_instances[BSP_CONSOLE_MINOR].base;
+
+ return zynq_uart_read_polled(base);
+}
+
+BSP_output_char_function_type BSP_output_char =
zynqmp_debug_console_early_init;
+
+BSP_polling_getchar_function_type BSP_poll_char = zynqmp_debug_console_in;
+
+RTEMS_SYSINIT_ITEM(
+ zynqmp_debug_console_init,
+ RTEMS_SYSINIT_BSP_START,
+ RTEMS_SYSINIT_ORDER_LAST_BUT_5
+);
diff --git a/bsps/arm/xilinx-zynqmp-rpu/include/bsp.h
b/bsps/arm/xilinx-zynqmp-rpu/include/bsp.h
new file mode 100644
index 0000000000..9b71487999
--- /dev/null
+++ b/bsps/arm/xilinx-zynqmp-rpu/include/bsp.h
@@ -0,0 +1,93 @@
+/**
+ * @file
+ * @ingroup RTEMSBSPsARMZynqMP
+ * @brief Global BSP definitions.
+ */
+
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2013, 2014 embedded brains GmbH
+ *
+ * Copyright (C) 2019 DornerWorks
+ *
+ * Written by Jeff Kubascik <jeff.kubas...@dornerworks.com>
+ * and Josh Whitehead <josh.whiteh...@dornerworks.com>
+ *
+ * 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.
+ */
+
+#ifndef LIBBSP_ARM_XILINX_ZYNQMP_BSP_H
+#define LIBBSP_ARM_XILINX_ZYNQMP_BSP_H
+
+/**
+ * @defgroup RTEMSBSPsARMZynqMP Xilinx Zynq UltraScale+ MPSoC
+ *
+ * @ingroup RTEMSBSPsARM
+ *
+ * @brief Xilinx Zynq UltraScale+ MPSoC Board Support Package.
+ *
+ * @{
+ */
+
+#include <bspopts.h>
+
+#define BSP_FEATURE_IRQ_EXTENSION
+
+#ifndef ASM
+
+#include <rtems.h>
+
+#include <bsp/default-initial-extension.h>
+#include <bsp/start.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+#define BSP_ARM_GIC_CPUIF_BASE 0x00F9001000
+
+#define BSP_ARM_GIC_DIST_BASE 0xF9000000
+
+#define BSP_ARM_A9MPCORE_SCU_BASE 0
+
+#define BSP_ARM_A9MPCORE_GT_BASE 0
+
+/**
+ * @brief Zynq UltraScale+ MPSoC specific set up of the MMU.
+ *
+ * Provide in the application to override the defaults in the BSP.
+ */
+BSP_START_TEXT_SECTION void zynqmp_setup_mmu_and_cache(void);
+
+void zynqmp_debug_console_flush(void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* ASM */
+
+/** @} */
+
+#endif /* LIBBSP_ARM_XILINX_ZYNQMP_BSP_H */
diff --git a/bsps/arm/xilinx-zynqmp-rpu/include/bsp/irq.h
b/bsps/arm/xilinx-zynqmp-rpu/include/bsp/irq.h
new file mode 100644
index 0000000000..681ccfb48c
--- /dev/null
+++ b/bsps/arm/xilinx-zynqmp-rpu/include/bsp/irq.h
@@ -0,0 +1,81 @@
+/**
+ * @file
+ * @ingroup zynqmp_interrupt
+ * @brief Interrupt definitions.
+ */
+
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2013 embedded brains GmbH
+ *
+ * Copyright (C) 2019 DornerWorks
+ *
+ * Written by Jeff Kubascik <jeff.kubas...@dornerworks.com>
+ * and Josh Whitehead <josh.whiteh...@dornerworks.com>
+ *
+ * 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.
+ */
+
+#ifndef LIBBSP_ARM_XILINX_ZYNQMP_IRQ_H
+#define LIBBSP_ARM_XILINX_ZYNQMP_IRQ_H
+
+#ifndef ASM
+
+#include <rtems/irq.h>
+#include <rtems/irq-extension.h>
+
+#include <dev/irq/arm-gic-irq.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/* SPIs */
+#define ZYNQMP_IRQ_UART_0 53
+#define ZYNQMP_IRQ_UART_1 54
+
+#define ZYNQMP_IRQ_TTC_0_0 68
+#define ZYNQMP_IRQ_TTC_0_1 69
+#define ZYNQMP_IRQ_TTC_0_2 70
+#define ZYNQMP_IRQ_TTC_1_0 71
+#define ZYNQMP_IRQ_TTC_1_1 72
+#define ZYNQMP_IRQ_TTC_1_2 73
+#define ZYNQMP_IRQ_TTC_2_0 74
+#define ZYNQMP_IRQ_TTC_2_1 75
+#define ZYNQMP_IRQ_TTC_2_2 76
+#define ZYNQMP_IRQ_TTC_3_0 77
+#define ZYNQMP_IRQ_TTC_3_1 78
+#define ZYNQMP_IRQ_TTC_3_2 79
+
+
+#define BSP_INTERRUPT_VECTOR_COUNT 188
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* ASM */
+
+#endif /* LIBBSP_ARM_XILINX_ZYNQMP_IRQ_H */
diff --git a/bsps/arm/xilinx-zynqmp-rpu/include/tm27.h
b/bsps/arm/xilinx-zynqmp-rpu/include/tm27.h
new file mode 100644
index 0000000000..14214fe151
--- /dev/null
+++ b/bsps/arm/xilinx-zynqmp-rpu/include/tm27.h
@@ -0,0 +1,54 @@
+/**
+ * @file
+ * @ingroup zynqmp_tm27
+ * @brief Interrupt mechanisms for tm27 test.
+ */
+
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2013 embedded brains GmbH
+ *
+ * Copyright (C) 2019 DornerWorks
+ *
+ * Written by Jeff Kubascik <jeff.kubas...@dornerworks.com>
+ * and Josh Whitehead <josh.whiteh...@dornerworks.com>
+ *
+ * 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.
+ */
+
+#ifndef _RTEMS_TMTEST27
+#error "This is an RTEMS internal file you must not include directly."
+#endif
+
+#ifndef __tm27_h
+#define __tm27_h
+
+/**
+ * @defgroup zynqmp_tm27 TM27 Test Support
+ * @ingroup RTEMSBSPsARMZynqMP
+ * @brief Interrupt Mechanisms for tm27 test
+ */
+
+#include <dev/irq/arm-gic-tm27.h>
+
+#endif /* __tm27_h */
diff --git a/bsps/arm/xilinx-zynqmp-rpu/start/bspreset.c
b/bsps/arm/xilinx-zynqmp-rpu/start/bspreset.c
new file mode 100644
index 0000000000..14f7d32436
--- /dev/null
+++ b/bsps/arm/xilinx-zynqmp-rpu/start/bspreset.c
@@ -0,0 +1,42 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2013 embedded brains GmbH
+ *
+ * Copyright (C) 2019 DornerWorks
+ *
+ * Written by Jeff Kubascik <jeff.kubas...@dornerworks.com>
+ * and Josh Whitehead <josh.whiteh...@dornerworks.com>
+ *
+ * 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.
+ */
+
+#include <bsp.h>
+
+void bsp_reset(void)
+{
+ zynqmp_debug_console_flush();
+
+ while (true) {
+ /* Wait */
+ }
+}
diff --git a/bsps/arm/xilinx-zynqmp-rpu/start/bspstart.c
b/bsps/arm/xilinx-zynqmp-rpu/start/bspstart.c
new file mode 100644
index 0000000000..a3cc498d7e
--- /dev/null
+++ b/bsps/arm/xilinx-zynqmp-rpu/start/bspstart.c
@@ -0,0 +1,50 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2013, 2015 embedded brains GmbH
+ *
+ * Copyright (C) 2019 DornerWorks
+ *
+ * Written by Jeff Kubascik <jeff.kubas...@dornerworks.com>
+ * and Josh Whitehead <josh.whiteh...@dornerworks.com>
+ *
+ * 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.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <bsp/irq-generic.h>
+#include <bsp/linker-symbols.h>
+
+#include <libcpu/arm-cp15.h>
+
+void bsp_start(void)
+{
+ bsp_interrupt_initialize();
+ // TODO: enable cache
+#if 0
+ rtems_cache_coherent_add_area(
+ bsp_section_nocacheheap_begin,
+ (uintptr_t) bsp_section_nocacheheap_size
+ );
+#endif
+}
diff --git a/bsps/arm/xilinx-zynqmp-rpu/start/bspstarthooks.c
b/bsps/arm/xilinx-zynqmp-rpu/start/bspstarthooks.c
new file mode 100644
index 0000000000..c0d35d31b7
--- /dev/null
+++ b/bsps/arm/xilinx-zynqmp-rpu/start/bspstarthooks.c
@@ -0,0 +1,66 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2013, 2014 embedded brains GmbH
+ *
+ * Copyright (C) 2019 DornerWorks
+ *
+ * Written by Jeff Kubascik <jeff.kubas...@dornerworks.com>
+ * and Josh Whitehead <josh.whiteh...@dornerworks.com>
+ *
+ * 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.
+ */
+
+#include <bsp.h>
+#include <bsp/start.h>
+
+BSP_START_TEXT_SECTION void bsp_start_hook_0(void)
+{
+ /*
+ * On reset, V will be set. This points the exceptions to the FSBL's
vectors. The FSBL
+ * should clear this bit before booting RTEMS but in some debugging
+ * configurations the bit may not be. The other bits should already
be clear
+ * on reset. Since the correct settings in these bits are critical,
+ * make sure SCTLR[M, I, A, C, V] are cleared. Afterwards, exceptions
are
+ * handled by RTEMS.
+ * Note 1: The APU also does these steps in start.S in _start in the
#if block:
+ * `#if (__ARM_ARCH >= 7 && __ARM_ARCH_PROFILE == 'A') ||
__ARM_ARCH >= 8`
+ * Note 2: Not all Arm R cores need this (like the TMS570). So, this
probably should
+ * be in this hook and not in start.S
+ *
+ * Ref:
https://developer.arm.com/documentation/ddi0460/c/System-Control/Register-descriptions/c1--System-Control-Register?lang=en
+ */
+
+ __asm__ volatile(
+ "mrc p15, 0, r0, c1, c0, 0 \n"
+ "bic r1, r0, #0x3000 \n" // Clear V[13] and I[12]
+ "bic r1, r1, #0x7 \n" // Clear C[2] A[1] and M[0]
+ "mcr p15, 0, r1, c1, c0, 0 \n"
+ : :);
+}
+
+BSP_START_TEXT_SECTION void bsp_start_hook_1(void)
+{
+ bsp_start_copy_sections();
+ // TODO: Setup/enable cache HERE
+ bsp_start_clear_bss();
+}
diff --git a/bsps/include/xil/xttcps_hw.h b/bsps/include/xil/xttcps_hw.h
new file mode 100644
index 0000000000..0872e66c8f
--- /dev/null
+++ b/bsps/include/xil/xttcps_hw.h
@@ -0,0 +1,223 @@
+/******************************************************************************
+* Copyright (C) 2010 - 2021 Xilinx, Inc. All rights reserved.
+* SPDX-License-Identifier: MIT
+******************************************************************************/
+
+/*****************************************************************************/
+/**
+*
+* @file xttcps_hw.h
+* @addtogroup ttcps_v3_14
+* @{
+*
+* This file defines the hardware interface to one of the three timer
counters
+* in the Ps block.
+*
+*
+* <pre>
+* MODIFICATION HISTORY:
+*
+* Ver Who Date Changes
+* ----- ------ -------- -------------------------------------------------
+* 1.00a drg/jz 01/21/10 First release
+* 3.00 kvn 02/13/15 Modified code for MISRA-C:2012 compliance.
+* 3.5 srm 10/06/17 Updated XTTCPS_COUNT_VALUE_MASK,
+* XTTCPS_INTERVAL_VAL_MASK, XTTCPS_MATCH_MASK macros
to
+* mask 16 bit values for zynq and 32 bit values for
+* zynq ultrascale+mpsoc "
+* </pre>
+*
+******************************************************************************/
+
+#ifndef XTTCPS_HW_H /* prevent circular inclusions */
+#define XTTCPS_HW_H /* by using protection macros */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/***************************** Include Files
*********************************/
+
+
+#ifndef __rtems__
+#include "xil_types.h"
+#include "xil_assert.h"
+#include "xil_io.h"
+#else
+#include "xil_types.h"
+static inline u32 Xil_In32(UINTPTR Addr)
+{
+ return *(volatile u32 *) Addr;
+}
+static inline void Xil_Out32(UINTPTR Addr, u32 Value)
+{
+ volatile u32 *LocalAddr = (volatile u32 *)Addr;
+ *LocalAddr = Value;
+}
+#endif /* __rtems__ */
+
+/************************** Constant Definitions
*****************************/
+/*
+ * Flag for a9 processor
+ */
+#ifndef __rtems__
+ #if !defined (ARMR5) && !defined (__aarch64__) && !defined (ARMA53_32)
+ #define ARMA9
+ #endif
+#endif
+
+/** @name Register Map
+ *
+ * Register offsets from the base address of the device.
+ *
+ * @{
+ */
+#define XTTCPS_CLK_CNTRL_OFFSET 0x00000000U /**< Clock Control Register */
+#define XTTCPS_CNT_CNTRL_OFFSET 0x0000000CU /**< Counter Control
Register*/
+#define XTTCPS_COUNT_VALUE_OFFSET 0x00000018U /**< Current Counter Value
*/
+#define XTTCPS_INTERVAL_VAL_OFFSET 0x00000024U /**< Interval Count Value
*/
+#define XTTCPS_MATCH_0_OFFSET 0x00000030U /**< Match 1 value */
+#define XTTCPS_MATCH_1_OFFSET 0x0000003CU /**< Match 2 value */
+#define XTTCPS_MATCH_2_OFFSET 0x00000048U /**< Match 3 value */
+#define XTTCPS_ISR_OFFSET 0x00000054U /**< Interrupt Status Register */
+#define XTTCPS_IER_OFFSET 0x00000060U /**< Interrupt Enable Register */
+/* @} */
+
+/** @name Clock Control Register
+ * Clock Control Register definitions
+ * @{
+ */
+#define XTTCPS_CLK_CNTRL_PS_EN_MASK 0x00000001U /**< Prescale enable */
+#define XTTCPS_CLK_CNTRL_PS_VAL_MASK 0x0000001EU /**< Prescale value */
+#define XTTCPS_CLK_CNTRL_PS_VAL_SHIFT 1U /**< Prescale shift */
+#define XTTCPS_CLK_CNTRL_PS_DISABLE 16U /**< Prescale disable */
+#define XTTCPS_CLK_CNTRL_SRC_MASK 0x00000020U /**< Clock source */
+#define XTTCPS_CLK_CNTRL_EXT_EDGE_MASK 0x00000040U /**< External Clock
edge */
+/* @} */
+
+/** @name Counter Control Register
+ * Counter Control Register definitions
+ * @{
+ */
+#define XTTCPS_CNT_CNTRL_DIS_MASK 0x00000001U /**< Disable the counter */
+#define XTTCPS_CNT_CNTRL_INT_MASK 0x00000002U /**< Interval mode */
+#define XTTCPS_CNT_CNTRL_DECR_MASK 0x00000004U /**< Decrement mode */
+#define XTTCPS_CNT_CNTRL_MATCH_MASK 0x00000008U /**< Match mode */
+#define XTTCPS_CNT_CNTRL_RST_MASK 0x00000010U /**< Reset counter */
+#define XTTCPS_CNT_CNTRL_EN_WAVE_MASK 0x00000020U /**< Enable waveform */
+#define XTTCPS_CNT_CNTRL_POL_WAVE_MASK 0x00000040U /**< Waveform polarity
*/
+#define XTTCPS_CNT_CNTRL_RESET_VALUE 0x00000021U /**< Reset value */
+/* @} */
+
+/** @name Current Counter Value Register
+ * Current Counter Value Register definitions
+ * @{
+ */
+#if defined(ARMA9)
+#define XTTCPS_COUNT_VALUE_MASK 0x0000FFFFU /**< 16-bit counter value */
+#else
+#define XTTCPS_COUNT_VALUE_MASK 0xFFFFFFFFU /**< 32-bit counter value */
+#endif
+/* @} */
+
+/** @name Interval Value Register
+ * Interval Value Register is the maximum value the counter will count up
or
+ * down to.
+ * @{
+ */
+#if defined(ARMA9)
+#define XTTCPS_INTERVAL_VAL_MASK (u32)(0x0000FFFF) /**< 16-bit Interval
value*/
+#else
+#define XTTCPS_INTERVAL_VAL_MASK (u32)(0xFFFFFFFF) /**< 32-bit Interval
value*/
+#endif
+/* @} */
+
+/** @name Match Registers
+ * Definitions for Match registers, each timer counter has three match
+ * registers.
+ * @{
+ */
+#if defined(ARMA9)
+#define XTTCPS_MATCH_MASK 0x0000FFFFU /**< 16-bit Match value */
+#else
+#define XTTCPS_MATCH_MASK 0xFFFFFFFFU /**< 32-bit Match value */
+#endif
+#define XTTCPS_NUM_MATCH_REG 3U /**< Num of Match reg */
+/* @} */
+
+/** @name Interrupt Registers
+ * Following register bit mask is for all interrupt registers.
+ *
+ * @{
+ */
+#define XTTCPS_IXR_INTERVAL_MASK 0x00000001U /**< Interval Interrupt */
+#define XTTCPS_IXR_MATCH_0_MASK 0x00000002U /**< Match 1 Interrupt */
+#define XTTCPS_IXR_MATCH_1_MASK 0x00000004U /**< Match 2 Interrupt */
+#define XTTCPS_IXR_MATCH_2_MASK 0x00000008U /**< Match 3 Interrupt */
+#define XTTCPS_IXR_CNT_OVR_MASK 0x00000010U /**< Counter Overflow */
+#define XTTCPS_IXR_ALL_MASK 0x0000001FU /**< All valid Interrupts */
+/* @} */
+
+
+/***************** Macros (Inline Functions) Definitions
*********************/
+
+/****************************************************************************/
+/**
+*
+* Read the given Timer Counter register.
+*
+* @param BaseAddress is the base address of the timer counter device.
+* @param RegOffset is the register offset to be read
+*
+* @return The 32-bit value of the register
+*
+* @note C-style signature:
+* u32 XTtcPs_ReadReg(u32 BaseAddress, u32 RegOffset)
+*
+*****************************************************************************/
+#define XTtcPs_ReadReg(BaseAddress, RegOffset) \
+ (Xil_In32((BaseAddress) + (u32)(RegOffset)))
+
+/****************************************************************************/
+/**
+*
+* Write the given Timer Counter register.
+*
+* @param BaseAddress is the base address of the timer counter device.
+* @param RegOffset is the register offset to be written
+* @param Data is the 32-bit value to write to the register
+*
+* @return None.
+*
+* @note C-style signature:
+* void XTtcPs_WriteReg(XTtcPs BaseAddress, u32 RegOffset,
+* u32 Data)
+*
+*****************************************************************************/
+#define XTtcPs_WriteReg(BaseAddress, RegOffset, Data) \
+ (Xil_Out32((BaseAddress) + (u32)(RegOffset), (u32)(Data)))
+
+/****************************************************************************/
+/**
+*
+* Calculate a match register offset using the Match Register index.
+*
+* @param MatchIndex is the 0-2 value of the match register
+*
+* @return MATCH_N_OFFSET.
+*
+* @note C-style signature:
+* u32 XTtcPs_Match_N_Offset(u8 MatchIndex)
+*
+*****************************************************************************/
+#define XTtcPs_Match_N_Offset(MatchIndex) \
+ ((u32)XTTCPS_MATCH_0_OFFSET + ((u32)(12U) * (u32)(MatchIndex)))
+
+/************************** Function Prototypes
******************************/
+
+/************************** Variable Definitions
*****************************/
+#ifdef __cplusplus
+}
+#endif
+#endif /* end of protection macro */
+/** @} */
diff --git a/bsps/include/xil/zynqmp.h b/bsps/include/xil/zynqmp.h
new file mode 100644
index 0000000000..34051c525a
--- /dev/null
+++ b/bsps/include/xil/zynqmp.h
@@ -0,0 +1,99 @@
+/**
+ * @file
+ * @ingroup RTEMSBSPsARMZynqMP
+ * @brief Peripheral memory map.
+ */
+
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2023 Reflex Aerospace GmbH
+ *
+ * Written by Philip Kirkpatrick <p.kirkpatr...@reflexaerospace.com>
+ *
+ * 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.
+ */
+
+#ifndef LIBBSP_ARM_ZYNQMP
+#define LIBBSP_ARM_ZYNQMP
+
+/* Data derived from
https://docs.xilinx.com/r/en-US/ug1085-zynq-ultrascale-trm/PS-I/O-Peripherals-Registers
*/
+
+/* LPD IO Peripherals */
+#define ZYNQMP_UART0 (0xFF000000)
+#define ZYNQMP_UART1 (0xFF010000)
+#define ZYNQMP_I2C0 (0xFF020000)
+#define ZYNQMP_I2C1 (0xFF030000)
+#define ZYNQMP_SPI0 (0xFF040000)
+#define ZYNQMP_SPI1 (0xFF050000)
+#define ZYNQMP_CAN0 (0xFF060000)
+#define ZYNQMP_CAN1 (0xFF070000)
+#define ZYNQMP_GPIO (0xFF0A0000)
+#define ZYNQMP_GEM0 (0xFF0B0000)
+#define ZYNQMP_GEM1 (0xFF0C0000)
+#define ZYNQMP_GEM2 (0xFF0D0000)
+#define ZYNQMP_GEM3 (0xFF0E0000)
+#define ZYNQMP_QSPI (0xFF0F0000)
+#define ZYNQMP_NAND (0xFF100000)
+#define ZYNQMP_SD0 (0xFF160000)
+#define ZYNQMP_SD1 (0xFF170000)
+#define ZYNQMP_IPI_MSG (0xFF990000)
+#define ZYNQMP_USB0 (0xFF9D0000)
+#define ZYNQMP_USB1 (0xFF9E0000)
+#define ZYNQMP_AMS (0xFFA50000)
+#define ZYNQMP_PSSYSMON (0xFFA50800)
+#define ZYNQMP_PLSYSMON (0xFFA50C00)
+#define ZYNQMP_CSU_SWDT (0xFFCB0000)
+
+/* FPD IO Peripherals */
+#define ZYNQMP_SATA (0xFD0C0000)
+#define ZYNQMP_PCIE (0xFD0E0000)
+#define ZYNQMP_PCIE_IN (0xFD0E0800)
+#define ZYNQMP_PCIE_EG (0xFD0E0C00)
+#define ZYNQMP_PCIE_DMA (0xFD0F0000)
+#define ZYNQMP_SIOU (0xFD3D0000)
+#define ZYNQMP_GTR (0xFD400000)
+#define ZYNQMP_PCIE_ATTR (0xFD480000)
+#define ZYNQMP_DP (0xFD4A0000)
+#define ZYNQMP_GPU (0xFD4B0000)
+#define ZYNQMP_DP_DMA (0xFD4C0000)
+
+/* LPD System Registers */
+#define ZYNQMP_IPI (0xFF300000)
+#define ZYNQMP_TTC0 (0xFF110000)
+#define ZYNQMP_TTC1 (0xFF120000)
+#define ZYNQMP_TTC2 (0xFF130000)
+#define ZYNQMP_TTC3 (0xFF140000)
+#define ZYNQMP_LPD_SWDT (0xFF150000)
+#define ZYNQMP_XPPU (0xFF980000)
+#define ZYNQMP_XPPU_SINK (0xFF9C0000)
+#define ZYNQMP_PL_LPD (0xFF9B0000)
+#define ZYNQMP_OCM (0xFFA00000)
+#define ZYNQMP_LPD_FPD (0xFFA10000)
+#define ZYNQMP_RTC (0xFFA60000)
+#define ZYNQMP_OCM_XMPU (0xFFA70000)
+#define ZYNQMP_LPD_DMA (0xFFA80000)
+#define ZYNQMP_CSU_DMA (0xFFC80000)
+#define ZYNQMP_CSU (0xFFCA0000)
+#define ZYNQMP_BBRAM (0xFFCD0000)
+
+#endif /* LIBBSP_ARM_ZYNQMP */
diff --git a/bsps/shared/dev/clock/xil-ttc.c
b/bsps/shared/dev/clock/xil-ttc.c
new file mode 100644
index 0000000000..c6aaaa9f91
--- /dev/null
+++ b/bsps/shared/dev/clock/xil-ttc.c
@@ -0,0 +1,214 @@
+/**
+ * @file
+ *
+ * @ingroup RTEMSBSPsARMZynqMP
+ *
+ * @brief Triple Timer Counter clock functions definitions.
+ */
+
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2023 Reflex Aerospace GmbH
+ *
+ * Written by Philip Kirkpatrick <p.kirkpatr...@reflexaerospace.com>
+ *
+ * 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.
+ */
+
+#include <stdlib.h>
+
+#include <rtems.h>
+#include <bsp.h>
+#include <bsp/irq.h>
+#include <zynqmp.h>
+#include <xttcps_hw.h>
+#include <rtems/timecounter.h>
+
+static struct timecounter zynqmp_ttc_tc;
+
+#define TTC_REFERENCE_CLOCK 100000000
+
+/* This is defined in dev/clock/clockimpl.h */
+void Clock_isr(rtems_irq_hdl_param arg);
+
+static uint32_t irq_match_interval;
+
+static uint32_t zynqmp_ttc_get_timecount(struct timecounter *tc)
+{
+ uint32_t time;
+ time = XTtcPs_ReadReg(ZYNQMP_TTC0, XTTCPS_COUNT_VALUE_OFFSET);
+ return time;
+}
+
+/**
+ * @brief Initialize the HW peripheral for clock driver
+ *
+ * Clock driver is implemented by RTI module
+ *
+ * @retval Void
+ */
+static void zynqmp_ttc_clock_driver_support_initialize_hardware(void)
+{
+
+ uint32_t microsec_per_tick;
+ uint16_t clock_ratio;
+ uint8_t index;
+ uint32_t frequency;
+ uint32_t prescaler;
+ uint32_t tmp_reg_val;
+
+ microsec_per_tick = rtems_configuration_get_microseconds_per_tick();
+
+ /* Check the TTC is OFF before reconfiguring */
+ XTtcPs_WriteReg(ZYNQMP_TTC0, XTTCPS_CNT_CNTRL_OFFSET,
XTTCPS_CNT_CNTRL_DIS_MASK |
+ XTTCPS_CNT_CNTRL_EN_WAVE_MASK); // Don't enable waveform output
(active low)
+
+ /* Prescaler value is 2^(N + 1)
+ * Divide down the clock as much as possible while still retaining a
+ * frequency that is an integer multiple of 1MHz. This maximizes time to
+ * overflow while minimizing rounding errors in 1us periods
+ */
+ clock_ratio = TTC_REFERENCE_CLOCK / 1000000;
+ /* Search for the highest set bit. This is effectively
min(log2(ratio))*/
+ for(index = sizeof(clock_ratio) * 8 - 1; index > 0; index--) {
+ if((clock_ratio >> (index)) & 0x01) {
+ break;
+ }
+ }
+ if(index == 0 && (clock_ratio & 0x01 == 0)) {
+ // No prescaler
+ frequency = TTC_REFERENCE_CLOCK;
+ XTtcPs_WriteReg(ZYNQMP_TTC0, XTTCPS_CLK_CNTRL_OFFSET, 0);
+ } else {
+ prescaler = index - 1;
+ frequency = TTC_REFERENCE_CLOCK / (1 << (prescaler + 1));
+ XTtcPs_WriteReg(ZYNQMP_TTC0, XTTCPS_CLK_CNTRL_OFFSET,
+ prescaler << XTTCPS_CLK_CNTRL_PS_VAL_SHIFT |
+ XTTCPS_CLK_CNTRL_PS_EN_MASK);
+ }
+
+ /* Max out the counter interval */
+ tmp_reg_val = XTTCPS_INTERVAL_VAL_MASK;
+ XTtcPs_WriteReg(ZYNQMP_TTC0, XTTCPS_INTERVAL_VAL_OFFSET, tmp_reg_val);
+
+ /* Setup match register to generate tick IRQ */
+ irq_match_interval = (uint32_t) ((frequency * microsec_per_tick) /
1000000);
+ XTtcPs_WriteReg(ZYNQMP_TTC0, XTTCPS_MATCH_0_OFFSET, irq_match_interval);
+ /* Clear interupts (clear on read) */
+ XTtcPs_ReadReg(ZYNQMP_TTC0, XTTCPS_ISR_OFFSET);
+ /* Enable interupt for match register */
+ XTtcPs_WriteReg(ZYNQMP_TTC0, XTTCPS_IER_OFFSET, XTTCPS_IXR_MATCH_0_MASK);
+ /* Configure, reset, and enable counter */
+ XTtcPs_WriteReg(ZYNQMP_TTC0, XTTCPS_CNT_CNTRL_OFFSET,
+ XTTCPS_CNT_CNTRL_EN_WAVE_MASK | /* Don't enable waveform output
(active low) */
+ XTTCPS_CNT_CNTRL_RST_MASK | /* Reset count and start counter
*/
+ XTTCPS_CNT_CNTRL_MATCH_MASK /* Enable match mode */
+ /* Increment mode */
+ /* Overflow mode */
+ /* Not disabled */
+ );
+
+ /* set timecounter */
+ zynqmp_ttc_tc.tc_get_timecount = zynqmp_ttc_get_timecount;
+ zynqmp_ttc_tc.tc_counter_mask = XTTCPS_COUNT_VALUE_MASK;
+ zynqmp_ttc_tc.tc_frequency = frequency;
+ zynqmp_ttc_tc.tc_quality = RTEMS_TIMECOUNTER_QUALITY_CLOCK_DRIVER;
+ rtems_timecounter_install(&zynqmp_ttc_tc);
+}
+
+/**
+ * @brief Clears interrupt source
+ *
+ * @retval Void
+ */
+static uint32_t tick_miss = 0;
+static void zynqmp_ttc_clock_driver_support_at_tick( void )
+{
+ uint32_t irq_flags;
+ uint32_t cval;
+ uint32_t now;
+ uint32_t delta;
+
+ /* Get and clear interupts (clear on read) */
+ irq_flags = XTtcPs_ReadReg(ZYNQMP_TTC0, XTTCPS_ISR_OFFSET);
+
+ if(irq_flags & XTTCPS_IXR_MATCH_0_MASK) {
+ /* Update match */
+ cval = XTtcPs_ReadReg(ZYNQMP_TTC0, XTTCPS_MATCH_0_OFFSET);
+ /* Check that the match for the next tick is in the future
+ * If no, then set the match for one irq interval from now
+ * This will have the effect that your timebase will slip but
+ * won't hang waiting for the counter to wrap around.
+ * If this happens durring normal opteration, there is a problem
+ * causing this interrupt to not be serviced quickly enough
+ * If this happens during debugging, that is normal and expected
+ * becaue the TTC does NOT pause when the CPU is halted on a
breakpoint
+ */
+ now = XTtcPs_ReadReg(ZYNQMP_TTC0, XTTCPS_COUNT_VALUE_OFFSET);
+ delta = now - cval;
+ if(delta > irq_match_interval) {
+ cval = now;
+ tick_miss++;
+ }
+ cval += irq_match_interval;
+ XTtcPs_WriteReg(ZYNQMP_TTC0, XTTCPS_MATCH_0_OFFSET, cval);
+ }
+ /* Else, something is set up wrong, only match should be enabled */
+}
+
+/**
+ * @brief registers RTI interrupt handler
+ *
+ * @param[in] Clock_isr new ISR handler
+ * @param[in] Old_ticker old ISR handler (unused and type broken)
+ *
+ * @retval Void
+ */
+static void zynqmp_ttc_clock_driver_support_install_isr(
+ rtems_isr_entry Clock_isr
+)
+{
+ rtems_status_code sc = RTEMS_SUCCESSFUL;
+
+ sc = rtems_interrupt_handler_install(
+ ZYNQMP_IRQ_TTC_0_0,
+ "Clock",
+ RTEMS_INTERRUPT_UNIQUE,
+ (rtems_interrupt_handler) Clock_isr,
+ NULL
+ );
+ if ( sc != RTEMS_SUCCESSFUL ) {
+ rtems_fatal_error_occurred(0xdeadbeef);
+ }
+}
+
+#define Clock_driver_support_at_tick \
+ zynqmp_ttc_clock_driver_support_at_tick
+
+#define Clock_driver_support_initialize_hardware \
+ zynqmp_ttc_clock_driver_support_initialize_hardware
+
+#define Clock_driver_support_install_isr(Clock_isr) \
+ zynqmp_ttc_clock_driver_support_install_isr( Clock_isr )
+
+#include "../../../shared/dev/clock/clockimpl.h"
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/abi.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/abi.yml
new file mode 100644
index 0000000000..829e9c9297
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/abi.yml
@@ -0,0 +1,21 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-string: null
+- split: null
+- env-append: null
+build-type: option
+copyrights:
+- Copyright (C) 2023 Reflex Aerospace GmbH (
https://www.reflexaerospace.com/)
+default:
+- enabled-by: true
+ value:
+ - -march=armv7-r
+ - -mthumb
+ - -mfpu=vfpv3-d16
+ - -mfloat-abi=hard
+description: |
+ ABI flags
+enabled-by: true
+links: []
+name: ABI_FLAGS
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/bspmercureyxu5.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/bspmercureyxu5.yml
new file mode 100644
index 0000000000..ec2d6ed158
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/bspmercureyxu5.yml
@@ -0,0 +1,92 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+arch: arm
+bsp: xilinx_zynqmp_mercuryxu5_rpu
+build-type: bsp
+cflags: []
+copyrights:
+- Copyright (C) 2023 Reflex Aerospace GmbH (
https://www.reflexaerospace.com/)
+cppflags: []
+enabled-by: true
+family: xilinx-zynqmp-rpu
+includes:
+- bsps/include/xil/
+install:
+- destination: ${BSP_INCLUDEDIR}
+ source:
+ - bsps/arm/xilinx-zynqmp-rpu/include/bsp.h
+ - bsps/include/xil/xil_types.h
+ - bsps/include/xil/xil_assert.h
+ - bsps/include/xil/xil_io.h
+ - bsps/include/xil/xttcps_hw.h
+ - bsps/include/xil/zynqmp.h
+- destination: ${BSP_INCLUDEDIR}/bsp
+ source:
+ - bsps/arm/xilinx-zynqmp-rpu/include/bsp/irq.h
+links:
+- role: build-dependency
+ uid: ../grp
+- role: build-dependency
+ uid: ../start
+- role: build-dependency
+ uid: abi
+- role: build-dependency
+ uid: optclkfastidle
+- role: build-dependency
+ uid: optclkuart
+- role: build-dependency
+ uid: optconirq
+- role: build-dependency
+ uid: ../../optconminor
+- role: build-dependency
+ uid: optint0len
+- role: build-dependency
+ uid: optint0ori
+- role: build-dependency
+ uid: optint1len
+- role: build-dependency
+ uid: optint1ori
+- role: build-dependency
+ uid: optramlen
+- role: build-dependency
+ uid: optramori
+- role: build-dependency
+ uid: optresetvec
+- role: build-dependency
+ uid: ../../obj
+- role: build-dependency
+ uid: ../../objirq
+- role: build-dependency
+ uid: ../../objdevserialzynq
+- role: build-dependency
+ uid: ../../objdevspizynq
+- role: build-dependency
+ uid: ../../objdevspixil
+- role: build-dependency
+ uid: ../../objmem
+- role: build-dependency
+ uid: ../../opto0
+- role: build-dependency
+ uid: linkcmds
+- role: build-dependency
+ uid: ../../bspopts
+source:
+- bsps/shared/cache/nocache.c
+- bsps/arm/shared/cp15/arm-cp15-set-exception-handler.c
+- bsps/arm/shared/cp15/arm-cp15-set-ttb-entries.c
+- bsps/arm/shared/start/bsp-start-memcpy.S
+- bsps/arm/xilinx-zynqmp-rpu/console/console-config.c
+- bsps/arm/xilinx-zynqmp-rpu/start/bspreset.c
+- bsps/arm/xilinx-zynqmp-rpu/start/bspstart.c
+- bsps/arm/xilinx-zynqmp-rpu/start/bspstarthooks.c
+- bsps/shared/dev/clock/xil-ttc.c
+- bsps/shared/dev/btimer/btimer-cpucounter.c
+- bsps/shared/dev/getentropy/getentropy-cpucounter.c
+- bsps/shared/dev/irq/arm-gicv2.c
+- bsps/shared/dev/irq/arm-gicv2-zynqmp.c
+- bsps/shared/dev/serial/console-termios.c
+- bsps/shared/irq/irq-default-handler.c
+- bsps/shared/start/bspfatal-default.c
+- bsps/shared/start/gettargethash-default.c
+- bsps/shared/start/sbrk.c
+- bsps/shared/start/stackalloc.c
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/linkcmds.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/linkcmds.yml
new file mode 100644
index 0000000000..f5e6ff7822
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/linkcmds.yml
@@ -0,0 +1,41 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+build-type: config-file
+content: |
+ MEMORY {
+ RAM_INT_0 : ORIGIN = ${ZYNQMP_RPU_RAM_INT_0_ORIGIN:#010x}, LENGTH =
${ZYNQMP_RPU_RAM_INT_0_LENGTH:#010x}
+ RAM_INT_1 : ORIGIN = ${ZYNQMP_RPU_RAM_INT_1_ORIGIN:#010x}, LENGTH =
${ZYNQMP_RPU_RAM_INT_1_LENGTH:#010x}
+ RAM : ORIGIN = ${ZYNQMP_RPU_RAM_ORIGIN:#010x}, LENGTH =
${ZYNQMP_RPU_RAM_LENGTH:#010x} - ${ZYNQMP_RPU_RAM_ORIGIN:#010x}
+ }
+
+ REGION_ALIAS ("REGION_START", RAM_INT_0);
+ REGION_ALIAS ("REGION_VECTOR", RAM_INT_0);
+ REGION_ALIAS ("REGION_TEXT", RAM);
+ REGION_ALIAS ("REGION_TEXT_LOAD", RAM);
+ REGION_ALIAS ("REGION_RODATA", RAM);
+ REGION_ALIAS ("REGION_RODATA_LOAD", RAM);
+ REGION_ALIAS ("REGION_DATA", RAM);
+ REGION_ALIAS ("REGION_DATA_LOAD", RAM);
+ REGION_ALIAS ("REGION_FAST_TEXT", RAM);
+ REGION_ALIAS ("REGION_FAST_TEXT_LOAD", RAM);
+ REGION_ALIAS ("REGION_FAST_DATA", RAM);
+ REGION_ALIAS ("REGION_FAST_DATA_LOAD", RAM);
+ REGION_ALIAS ("REGION_BSS", RAM);
+ REGION_ALIAS ("REGION_WORK", RAM);
+ REGION_ALIAS ("REGION_STACK", RAM);
+ REGION_ALIAS ("REGION_NOCACHE", RAM);
+ REGION_ALIAS ("REGION_NOCACHE_LOAD", RAM);
+
+ bsp_stack_abt_size = DEFINED (bsp_stack_abt_size) ? bsp_stack_abt_size :
1024;
+
+ bsp_section_rwbarrier_align = DEFINED (bsp_section_rwbarrier_align) ?
bsp_section_rwbarrier_align : 1M;
+
+ bsp_vector_table_in_start_section = 1;
+
+ INCLUDE linkcmds.armv4
+copyrights:
+- Copyright (C) 2023 Reflex Aerospace GmbH (
https://www.reflexaerospace.com/)
+enabled-by: true
+install-path: ${BSP_LIBDIR}
+links: []
+target: linkcmds
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optclkfastidle.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optclkfastidle.yml
new file mode 100644
index 0000000000..e303a8bf9f
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optclkfastidle.yml
@@ -0,0 +1,21 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-boolean: null
+- define-condition: null
+build-type: option
+copyrights:
+- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+default:
+- enabled-by:
+ - arm/lm3s6965_qemu
+ - arm/realview_pbx_a9_qemu
+ - arm/xilinx_zynq_a9_qemu
+ value: true
+- enabled-by: true
+ value: false
+description: |
+ This sets a mode where the time runs as fast as possible when a clock
ISR occurs while the IDLE thread is executing. This can significantly
reduce simulation times.
+enabled-by: true
+links: []
+name: CLOCK_DRIVER_USE_FAST_IDLE
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optclkuart.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optclkuart.yml
new file mode 100644
index 0000000000..77c8f30fff
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optclkuart.yml
@@ -0,0 +1,17 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-integer: null
+- define: null
+build-type: option
+copyrights:
+- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+default:
+- enabled-by: true
+ value: 100000000
+description: |
+ Zynq UART clock frequency in Hz
+enabled-by: true
+format: '{}'
+links: []
+name: ZYNQ_CLOCK_UART
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optconirq.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optconirq.yml
new file mode 100644
index 0000000000..ea13fa4561
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optconirq.yml
@@ -0,0 +1,16 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-boolean: null
+- define-condition: null
+build-type: option
+copyrights:
+- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+default:
+- enabled-by: true
+ value: true
+description: |
+ use interrupt driven mode for console devices (used by default)
+enabled-by: true
+links: []
+name: ZYNQ_CONSOLE_USE_INTERRUPTS
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint0len.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint0len.yml
new file mode 100644
index 0000000000..13b436ad2e
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint0len.yml
@@ -0,0 +1,18 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-integer: null
+- assert-uint32: null
+- env-assign: null
+- format-and-define: null
+build-type: option
+copyrights:
+- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+default:
+- enabled-by: true
+ value: 0x00010000
+description: ''
+enabled-by: true
+format: '{:#010x}'
+links: []
+name: ZYNQMP_RPU_RAM_INT_0_LENGTH
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint0ori.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint0ori.yml
new file mode 100644
index 0000000000..b33306b28e
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint0ori.yml
@@ -0,0 +1,18 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-integer: null
+- assert-uint32: null
+- env-assign: null
+- format-and-define: null
+build-type: option
+copyrights:
+- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+default:
+- enabled-by: true
+ value: 0x00000000
+description: ''
+enabled-by: true
+format: '{:#010x}'
+links: []
+name: ZYNQMP_RPU_RAM_INT_0_ORIGIN
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint1len.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint1len.yml
new file mode 100644
index 0000000000..093aff6eb4
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint1len.yml
@@ -0,0 +1,18 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-integer: null
+- assert-uint32: null
+- env-assign: null
+- format-and-define: null
+build-type: option
+copyrights:
+- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+default:
+- enabled-by: true
+ value: 0x00010000
+description: ''
+enabled-by: true
+format: '{:#010x}'
+links: []
+name: ZYNQMP_RPU_RAM_INT_1_LENGTH
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint1ori.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint1ori.yml
new file mode 100644
index 0000000000..5574289975
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optint1ori.yml
@@ -0,0 +1,18 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-integer: null
+- assert-uint32: null
+- env-assign: null
+- format-and-define: null
+build-type: option
+copyrights:
+- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+default:
+- enabled-by: true
+ value: 0x00020000
+description: ''
+enabled-by: true
+format: '{:#010x}'
+links: []
+name: ZYNQMP_RPU_RAM_INT_1_ORIGIN
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optprocunitrpu.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optprocunitrpu.yml
new file mode 100644
index 0000000000..9298808b2a
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optprocunitrpu.yml
@@ -0,0 +1,17 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-boolean: null
+- define-condition: null
+build-type: option
+copyrights:
+- Copyright (C) 2023 Reflex Aerospace GmbH (
https://www.reflexaerospace.com/)
+default:
+- enabled-by: true
+ value: true
+description: |
+ Sets the target processing unit to the RPU (R5F) cores.
+enabled-by: true
+format: '{}'
+links: []
+name: ZYNQMP_PROC_UNIT_RPU
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optramlen.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optramlen.yml
new file mode 100644
index 0000000000..966ae09b19
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optramlen.yml
@@ -0,0 +1,21 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-integer: null
+- assert-uint32: null
+- env-assign: null
+- format-and-define: null
+build-type: option
+copyrights:
+- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+default:
+- enabled-by: arm/xilinx_zynqmp_ultra96
+ value: 0x80000000
+- enabled-by: true
+ value: 0x10000000
+description: |
+ override a BSP's default RAM length
+enabled-by: true
+format: '{:#010x}'
+links: []
+name: ZYNQMP_RPU_RAM_LENGTH
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optramori.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optramori.yml
new file mode 100644
index 0000000000..ceb8401c37
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optramori.yml
@@ -0,0 +1,19 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-integer: null
+- assert-uint32: null
+- assert-aligned: 1048576
+- env-assign: null
+- format-and-define: null
+build-type: option
+copyrights:
+- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+default:
+- enabled-by: true
+ value: 0x00100000
+description: ''
+enabled-by: true
+format: '{:#010x}'
+links: []
+name: ZYNQMP_RPU_RAM_ORIGIN
+type: build
diff --git a/spec/build/bsps/arm/xilinx-zynqmp-rpu/optresetvec.yml
b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optresetvec.yml
new file mode 100644
index 0000000000..bac5c79627
--- /dev/null
+++ b/spec/build/bsps/arm/xilinx-zynqmp-rpu/optresetvec.yml
@@ -0,0 +1,16 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+actions:
+- get-boolean: null
+- define-condition: null
+build-type: option
+copyrights:
+- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+default:
+- enabled-by: true
+ value: false
+description: |
+ reset vector address for BSP start
+enabled-by: true
+links: []
+name: BSP_START_RESET_VECTOR
+type: build
---
On Mon, Jun 19, 2023 at 1:16 AM Chris Johns <chr...@rtems.org> wrote:
> On 17/6/2023 5:14 am, Gedare Bloom wrote:
> > On Fri, Jun 16, 2023 at 2:17 AM Philip Kirkpatrick
> > <p.kirkpatr...@reflexaerospace.com> wrote:
> >> On Fri, Jun 16, 2023 at 7:14 AM Chris Johns <chr...@rtems.org> wrote:
> >>>
> >>> On 15/6/2023 6:16 pm, Philip Kirkpatrick wrote:
> >>>> Thanks for all the good feedback.
> >>>>
> >>>> RE Joel:
> >>>> I'll fix my sloppy formatting that you caught and submit a revised
> patch. If
> >>>> I'm realistic about my schedule, I probably won't be able to get to
> it until
> >>>> next week.
> >>>> For xttcps_hw.h, there already is one #ifndef __rtems__ around the
> #includes,
> >>>> but on review there is another spot where I got lazy and used a #if
> 0. I'll
> >>>> correct that too. Other than that, the file is unmodified.
> >>>>
> >>>> On the discussion about a shared space, I'll leave that decision up
> to you.
> >>>> Tell me what you want and I can adjust as needed, or it could be done
> in a
> >>>> follow-on patch.
> >>>
> >>> Should the RPU BSP be located under bsps/arm/xilinx-rpu?
> >>
> >>
> >> I went back and forth on that decision and decided to keep them
> combined since the APU and RPU share a moderate amount of code. However, I
> can definitely see an argument that they are different enough to split. If
> you want it the other way, I can make that change when I address the other
> items.
>
> Thanks, I think this is worth while.
>
> > I think we should split it out. Shared code should likely be
> > refactored to arm/shared depending what that is.
>
> Agreed. I am fine with the code moving, leaving the arm/xilinx-zynqmp BSP
> as is
> because it may be removed (see below).
>
> > I'm not sure that carrying forward a 32-bit arm/xilinx-zynqmp makes
> > sense now that we have a functional aarch64 port. Splitting the RPU
> > out will make it easier to make that decision.
>
> I agree. I think it is confusing. I also think it should happen before 6.
>
> Chris
>
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