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commit 2ef61530474d439d178d99e4aa291910250b3c44 Author: Daniel P. Carvalho <[email protected]> AuthorDate: Sat Oct 3 13:44:56 2026 -0300 boards/mips/pic32mz: add Microchip EV49N51A board. Add the Microchip EV49N51A Ethernet to Wi-Fi Bridge board, built around the WFI32E01PE module (PIC32MZ-W1) with a LAN8720A Ethernet PHY. The nsh configuration runs SYSCLK at 200 MHz with the console on UART1 (dedicated pins RA8/RA9, header J203, 115200 8N1) and drives the red and green user LEDs on RK1/RK3. It selects PGC2/PGD2 as the debug channel. The SST26VF032B serial flash on SPI1 (dedicated pins, CS on RA1) is exported as /dev/mtdblock0. Its SPI frequency is set to 20 MHz: the SST26 driver's 64 MHz default is above PBCLK3/2 (25 MHz), which pic32mz_spi.c does not handle. mips-debug.ld is used with every toolchain. It has no OUTPUT_FORMAT, because XC32 and Pinguino name their little-endian ELF targets differently; the board passes -EL to the linker instead. With XC32 the board builds with -mno-dsp -mno-dspr2: NuttX does not enable or save the DSP ASE state. Assisted-by: Claude Code:claude-opus-5-5 Signed-off-by: Daniel P. Carvalho <[email protected]> --- .../mips/pic32mz/boards/ev49n51a/ev49n51a.jpg | Bin 0 -> 44913 bytes .../mips/pic32mz/boards/ev49n51a/index.rst | 283 +++++++++++++++++++ Documentation/platforms/mips/pic32mz/index.rst | 13 + boards/Kconfig | 14 + boards/mips/pic32mz/ev49n51a/Kconfig | 8 + boards/mips/pic32mz/ev49n51a/configs/nsh/defconfig | 43 +++ boards/mips/pic32mz/ev49n51a/include/board.h | 194 +++++++++++++ boards/mips/pic32mz/ev49n51a/scripts/Make.defs | 66 +++++ boards/mips/pic32mz/ev49n51a/scripts/mips-debug.ld | 305 +++++++++++++++++++++ boards/mips/pic32mz/ev49n51a/src/Makefile | 35 +++ boards/mips/pic32mz/ev49n51a/src/ev49n51a.h | 95 +++++++ .../mips/pic32mz/ev49n51a/src/pic32mz_autoleds.c | 88 ++++++ boards/mips/pic32mz/ev49n51a/src/pic32mz_boot.c | 81 ++++++ boards/mips/pic32mz/ev49n51a/src/pic32mz_bringup.c | 99 +++++++ boards/mips/pic32mz/ev49n51a/src/pic32mz_spi.c | 98 +++++++ 15 files changed, 1422 insertions(+) diff --git a/Documentation/platforms/mips/pic32mz/boards/ev49n51a/ev49n51a.jpg b/Documentation/platforms/mips/pic32mz/boards/ev49n51a/ev49n51a.jpg new file mode 100644 index 00000000000..4850780a3cd Binary files /dev/null and b/Documentation/platforms/mips/pic32mz/boards/ev49n51a/ev49n51a.jpg differ diff --git a/Documentation/platforms/mips/pic32mz/boards/ev49n51a/index.rst b/Documentation/platforms/mips/pic32mz/boards/ev49n51a/index.rst new file mode 100644 index 00000000000..fb9510cf642 --- /dev/null +++ b/Documentation/platforms/mips/pic32mz/boards/ev49n51a/index.rst @@ -0,0 +1,283 @@ +================================================ +Microchip EV49N51A (Ethernet to Wi-Fi Bridge) +================================================ + +.. tags:: arch:mips, chip:pic32mz, vendor:microchip + +.. figure:: ev49n51a.jpg + :figwidth: 40% + :align: center + :alt: The Microchip EV49N51A Ethernet to Wi-Fi Bridge board + + The Microchip EV49N51A Ethernet to Wi-Fi Bridge board + +This page documents the NuttX port to the Microchip EV49N51A, the +"Ethernet to Wi-Fi Bridge" reference design built around the WFI32E01PE +Wi-Fi module. The module contains a PIC32MZ1025W104132 (PIC32MZ-W1 +family) microcontroller. + +Features +======== + +* WFI32E01PE module (PCB antenna) with a PIC32MZ1025W104132: + + * MIPS32 M-Class core at 200 MHz + * 1 MB program flash, 256 KB data RAM + * 40 MHz crystal inside the module + * 2.4 GHz IEEE 802.11 b/g/n Wi-Fi (not supported by NuttX) + +* SST26VF032B 32 Mbit (4 MB) SPI serial flash (U202) +* LAN8720A 10/100 Ethernet PHY (U301, RMII) with RJ45 connector J301 +* USB Type-C connector J202 (5 V power input only; the data lines are + not connected) and MCP1727 3.3 V regulator +* Debug UART header J203 +* Two user LEDs and one user button +* ICSP header J204 (not fitted on the kit) + +Supported hardware +================== + +========================= ======= ==================================== +Peripheral Status Notes +========================= ======= ==================================== +UART1 Yes NSH console on J203 +Timers Yes System tick +GPIO Yes +SPI1 Yes SST26VF032B; reads tested only +I2C1/I2C2 Build Not tested; no I2C device on board +Ethernet No +Wi-Fi No +========================= ======= ==================================== + +Pin mapping +=========== + +Module pads and chip pins as wired on the EV49N51A (schematic 02-01134 +Rev 2): + +============== ================ ============================================= +Pin Signal Notes +============== ================ ============================================= +RA8 U1RX Debug UART, dedicated pin (not PPS) +RA9 U1TX Debug UART, dedicated pin (not PPS) +RK1 LED D201 (red) Active high +RK3 LED D202 (green) Active high +RA10 SW202 User button, low when pressed +RA1 SST26 CS GPIO, active low +RPC6 SPI1 SCK Dedicated SPI1 pin (``DEVCFG1.HSSPIEN``) +RPC7 SPI1 SDI Dedicated SPI1 pin +RPC8 SPI1 SDO Dedicated SPI1 pin +RB4 / RB5 PGC2 / PGD2 ICSP (J204), debug channel 2 +RA4 / RA5 I2C1 GPIO header footprint (not fitted) +============== ================ ============================================= + +The Ethernet PHY uses RPC9-RPC15, RPK6, RPK12-RPK14 and RPA14, but there +is no Ethernet driver yet. + +Buttons and LEDs +================ + +The board has two user LEDs, both active high: + +* D201 (red): RK1 +* D202 (green): RK3 + +D203 (red) is the power LED and cannot be controlled by software. + +When ``CONFIG_ARCH_LEDS`` is selected (the default), the LEDs are used by +the OS as follows: + +================ ======================= ======= ======= +SYMBOL MEANING GREEN RED +================ ======================= ======= ======= +LED_STARTED NuttX has been started OFF OFF +LED_HEAPALLOCATE Heap has been allocated OFF OFF +LED_IRQSENABLED Interrupts enabled OFF OFF +LED_STACKCREATED Idle stack created ON OFF +LED_INIRQ In an interrupt N/C GLOW +LED_SIGNAL In a signal handler N/C GLOW +LED_ASSERTION An assertion failed N/C GLOW +LED_PANIC The system has crashed N/C FLASH +================ ======================= ======= ======= + +The user button SW202 (RA10) and the reset button SW203 (MCLR) are +present on the board, but there is no button driver yet. + +Clocking +======== + +Unlike the PIC32MZ EC/EF families, the PIC32MZ-W1 does not configure its +PLLs from the configuration words. At boot, ``pic32mz_wfi32_pwrclk.c``: + +#. On B0 silicon, after a power-on or brown-out reset, switches the + power management unit (PMU) from its power-on MLDO mode to buck mode, + using the factory trim values stored in the device. + ``CONFIG_PIC32MZ_W1_PMU_MLDO=y`` skips this step and keeps the PMU in + MLDO mode. +#. Starts the 40 MHz primary oscillator inside the module. +#. Programs the system PLL (40 MHz / 5 * 150 / 6 = 200 MHz) and the + Ethernet/Wi-Fi PLL, and switches SYSCLK to the system PLL. + +The peripheral bus clocks are set in ``include/board.h``: + +======= ======= ========= ===================================== +Clock Divider Frequency Used by +======= ======= ========= ===================================== +PBCLK1 5 40 MHz Timers, UART3 +PBCLK2 2 100 MHz I/O ports, I2C1, ADC, CAN +PBCLK3 4 50 MHz UART1/2, SPI1/2, I2C2 +PBCLK4 10 20 MHz RTCC, DSCON +PBCLK5 2 100 MHz Flash, crypto, SQI +======= ======= ========= ===================================== + +PBCLK6 clocks the CPU on PIC32MZ-W1 and is not changed. + +The program flash uses ``CONFIG_PIC32MZ_W1_FLASH_WAITSTATES`` wait states +(5 by default at 200 MHz). + +Configuration words +------------------- + +The build places the configuration words (DEVCFG0/1/2/4, FBCFG0, FCPN0 and +FSIGN0) in ``nuttx.hex``, so no separate configuration step is needed when +flashing. They are set through Kconfig (``PIC32MZ_*`` options in +``arch/mips/src/pic32mz/Kconfig``). The ``nsh`` configuration selects ICSP +channel 2 (``CONFIG_PIC32MZ_ICESEL_CH2``) and keeps the secondary +oscillator disabled: the 32.768 kHz crystal X401 is not fitted on the kit. + +Toolchains +========== + +The port builds with two toolchains: + +* ``CONFIG_MIPS32_TOOLCHAIN_PINGUINOL``: the Pinguino p32-gcc toolchain, + also used by the NuttX CI for all MIPS boards. It can be downloaded from + https://github.com/PinguinoIDE/pinguino-compilers: + + .. code:: console + + $ curl -sSL -O https://github.com/PinguinoIDE/pinguino-compilers/releases/download/v20.10/pinguino-linux64-p32.zip + $ unzip pinguino-linux64-p32.zip + $ export PATH=$PWD/p32/bin:$PATH + +* ``CONFIG_MIPS32_TOOLCHAIN_MICROCHIPL_XC32``: Microchip MPLAB XC32 for + Linux (tested with v6.00), selected by the ``nsh`` defconfig. + +XC32 v6 and later no longer include device support and need the +`PIC32MZ-W Device Family Pack +<https://packs.download.microchip.com/>`_ (DFP). Extract the +``Microchip.PIC32MZ-W_DFP`` ``.atpack`` file (a zip archive) to +``~/microchip/WFI32-W_DFP``, or point ``WFI32E01_DFP_DIR`` at another +location: + +.. code:: console + + $ make WFI32E01_DFP_DIR=/path/to/PIC32MZ-W_DFP + +Flashing +======== + +The EV49N51A has no on-board programmer. The flash is programmed through +the ICSP header J204 (MCLR, PGC2/RB4, PGD2/RB5, 3.3 V, GND), which is not +fitted on the kit, using a Microchip programmer and MPLAB IPE. The port was +tested with a PICkit 3: + +.. code:: console + + $ cd /opt/microchip/mplabx/v6.20/mplab_platform/mplab_ipe + $ ./ipecmd.sh -P32MZ1025W104132 -TPPK3 -M -F/path/to/nuttx/nuttx.hex -Y -OL + +``-M`` programs the whole device, ``-Y`` verifies it and ``-OL`` releases +the device from reset. For other programmers, change ``-TPPK3`` (for +example ``-TPPK4`` for a PICkit 4). + +.. warning:: + + Programming erases the factory firmware. Read it back first with + MPLAB IPE if you want to restore it later. + +.. note:: + + Debugging through a PICkit 3 does not work with this device + (MPLAB X marks PICkit 3 support for it as beta). Programming works. + For early boot problems, use ``CONFIG_PIC32MZ_W1_BOOTTRACE`` (see + below). + +Configurations +============== + +Each configuration is built with: + +.. code:: console + + $ ./tools/configure.sh -l ev49n51a:<config> + $ make + +To build with the Pinguino toolchain instead of XC32: + +.. code:: console + + $ ./tools/configure.sh -l ev49n51a:nsh + $ kconfig-tweak --disable MIPS32_TOOLCHAIN_MICROCHIPL_XC32 \ + --enable MIPS32_TOOLCHAIN_PINGUINOL + $ make olddefconfig + $ make + +nsh +--- + +Basic NuttShell configuration with the console on UART1. Connect a 3.3 V +USB-to-serial adapter to J203: + +========== ============ ===================== +J203 pin Signal Adapter +========== ============ ===================== +1 U1RX (RA8) TX +2 U1TX (RA9) RX +3 GND GND +========== ============ ===================== + +and open it at 115200 8N1, without flow control. + +The SST26VF032B serial flash is registered as ``/dev/mtdblock0``. + +.. code:: console + + nsh> uname -a + NuttX 13.0.1-RC1 ec7277eeba Oct 3 2026 17:10:38 mips ev49n51a + nsh> ls -l /dev + /dev: + crw-rw-rw- 0 console + brw-rw-rw- 4194304 mtdblock0 + crw-rw-rw- 0 null + crw-rw-rw- 0 ttyS0 + crw-rw-rw- 0 zero + +Boot trace +========== + +``CONFIG_PIC32MZ_W1_BOOTTRACE=y`` prints one character on UART1 for each +PMU and clock bring-up step, before the PLLs are running. UART1 is clocked +from the internal FRC during this phase, so the baud rate is about +117647 instead of 115200; most terminals still read it. The normal console +takes over once the clocks are up. + +Silicon tested: WFI32E01PE, revision B0 (DEVID 0x0A400000). + +Limitations +=========== + +* No Ethernet or Wi-Fi driver. +* I2C1/I2C2 build but are not tested. +* SPI flash: only reads were tested (JEDEC ID and data), not writes or + erases. +* UART3 is not wired up. +* No button driver. + +References +========== + +* `PIC32MZ W1 and WFI32E01 Family Data Sheet (DS70005425) + <https://www.microchip.com/en-us/product/WFI32E01PE>`_ +* `EV49N51A Ethernet to Wi-Fi Bridge + <https://www.microchip.com/en-us/development-tool/EV49N51A>`_ diff --git a/Documentation/platforms/mips/pic32mz/index.rst b/Documentation/platforms/mips/pic32mz/index.rst index d6fcd8a05d2..9c48777b6fb 100644 --- a/Documentation/platforms/mips/pic32mz/index.rst +++ b/Documentation/platforms/mips/pic32mz/index.rst @@ -60,6 +60,19 @@ This was a collaborative effort between Kristopher Tate, David Sidrane and myself. The basic port is functional and a NuttShell (NSH) configuration is available. +Microchip PIC32MZ-W1 +-------------------- + +PIC32MZ-W1 family (MIPS32 M-Class core with 2.4 GHz Wi-Fi), including the +WFI32E01 module. A port is available for the Microchip EV49N51A (Ethernet +to Wi-Fi Bridge) board, based on the WFI32E01PE module +(PIC32MZ1025W104132). + +The W1 special function register layout and clock tree differ from the +EC/EF families, and software must start the oscillator, the PLLs and the +power management unit at boot. Supported: UART, timers, GPIO and SPI +(tested), I2C (build only). Ethernet and Wi-Fi are not supported. + Supported Boards ================ diff --git a/boards/Kconfig b/boards/Kconfig index 3df775a7ff6..bf6fdbc6386 100644 --- a/boards/Kconfig +++ b/boards/Kconfig @@ -805,6 +805,16 @@ config ARCH_BOARD_CHIPKIT_WIFIRE board is a chipKIT Arduino-compatible board. This board features the Microchip PIC32MZ2048EFG100 MCU running at 200 MHz. +config ARCH_BOARD_EV49N51A + bool "Microchip EV49N51A Ethernet to Wi-Fi Bridge (WFI32E01PE)" + depends on ARCH_CHIP_WFI32E01 + select ARCH_HAVE_LEDS + ---help--- + This option selects the Microchip EV49N51A Ethernet to Wi-Fi + Bridge board, built around the WFI32E01PE module (PIC32MZ-W1 + family, MIPS32 M-Class core with integrated 802.11n Wi-Fi) + running at 200 MHz, with a LAN8720A Ethernet PHY. + config ARCH_BOARD_FLIPNCLICK_PIC32MZ bool "Mikroe Flip&Click PIC32MZ" depends on ARCH_CHIP_PIC32MZ2048EFH @@ -4047,6 +4057,7 @@ config ARCH_BOARD default "ez80f910200zco" if ARCH_BOARD_EZ80F910200ZCO default "fire-stm32v2" if ARCH_BOARD_FIRE_STM32 default "chipkit-wifire" if ARCH_BOARD_CHIPKIT_WIFIRE + default "ev49n51a" if ARCH_BOARD_EV49N51A default "flipnclick-pic32mz" if ARCH_BOARD_FLIPNCLICK_PIC32MZ default "flipnclick-sam3x" if ARCH_BOARD_FLIPNCLICK_SAM3X default "freedom-k28f" if ARCH_BOARD_FREEDOM_K28F @@ -5334,6 +5345,9 @@ endif if ARCH_BOARD_CHIPKIT_WIFIRE source "boards/mips/pic32mz/chipkit-wifire/Kconfig" endif +if ARCH_BOARD_EV49N51A +source "boards/mips/pic32mz/ev49n51a/Kconfig" +endif if ARCH_BOARD_FLIPNCLICK_PIC32MZ source "boards/mips/pic32mz/flipnclick-pic32mz/Kconfig" endif diff --git a/boards/mips/pic32mz/ev49n51a/Kconfig b/boards/mips/pic32mz/ev49n51a/Kconfig new file mode 100644 index 00000000000..657dad2fecd --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/Kconfig @@ -0,0 +1,8 @@ +# +# For a description of the syntax of this configuration file, +# see the file kconfig-language.txt in the NuttX tools repository. +# + +if ARCH_BOARD_EV49N51A + +endif # ARCH_BOARD_EV49N51A diff --git a/boards/mips/pic32mz/ev49n51a/configs/nsh/defconfig b/boards/mips/pic32mz/ev49n51a/configs/nsh/defconfig new file mode 100644 index 00000000000..e0a67eab8eb --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/configs/nsh/defconfig @@ -0,0 +1,43 @@ +# +# This file is autogenerated: PLEASE DO NOT EDIT IT. +# +# You can use "make menuconfig" to make any modifications to the installed .config file. +# You can then do "make savedefconfig" to generate a new defconfig file that includes your +# modifications. +# +# CONFIG_ARCH_RAMFUNCS is not set +CONFIG_ARCH="mips" +CONFIG_ARCH_BOARD="ev49n51a" +CONFIG_ARCH_BOARD_EV49N51A=y +CONFIG_ARCH_CHIP="pic32mz" +CONFIG_ARCH_CHIP_PIC32MZ=y +CONFIG_ARCH_CHIP_PIC32MZW1=y +CONFIG_ARCH_CHIP_WFI32E01=y +CONFIG_ARCH_MIPS=y +CONFIG_ARCH_STACKDUMP=y +CONFIG_BOARD_LOOPSPERMSEC=7245 +CONFIG_BUILTIN=y +CONFIG_FS_PROCFS=y +CONFIG_IDLETHREAD_STACKSIZE=2048 +CONFIG_INIT_ENTRYPOINT="nsh_main" +CONFIG_INTELHEX_BINARY=y +CONFIG_LINE_MAX=64 +CONFIG_MIPS32_TOOLCHAIN_MICROCHIPL_XC32=y +CONFIG_MTD=y +CONFIG_MTD_SST26=y +CONFIG_NSH_BUILTIN_APPS=y +CONFIG_NSH_FILEIOSIZE=512 +CONFIG_NSH_READLINE=y +CONFIG_PIC32MZ_ICESEL_CH2=y +CONFIG_PIC32MZ_SPI1=y +CONFIG_PIC32MZ_UART1=y +CONFIG_PREALLOC_TIMERS=4 +CONFIG_RAM_SIZE=262144 +CONFIG_RAM_START=0xa0000000 +CONFIG_RR_INTERVAL=200 +CONFIG_SCHED_WAITPID=y +CONFIG_START_DAY=2 +CONFIG_START_MONTH=10 +CONFIG_START_YEAR=2026 +CONFIG_SYSTEM_NSH=y +CONFIG_UART1_SERIAL_CONSOLE=y diff --git a/boards/mips/pic32mz/ev49n51a/include/board.h b/boards/mips/pic32mz/ev49n51a/include/board.h new file mode 100644 index 00000000000..d3333273292 --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/include/board.h @@ -0,0 +1,194 @@ +/**************************************************************************** + * boards/mips/pic32mz/ev49n51a/include/board.h + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +#ifndef __BOARDS_MIPS_PIC32MZ_EV49N51A_INCLUDE_BOARD_H +#define __BOARDS_MIPS_PIC32MZ_EV49N51A_INCLUDE_BOARD_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#ifndef __ASSEMBLY__ +# include <stdbool.h> +#endif + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* Clocking ***************************************************************** + * + * Unlike EC/EF, PIC32MZ-W1's system PLL is NOT configured from these + * BOARD_PLL_* macros by pic32mz_lowinit.c - it is configured directly by + * pic32mz_wfi32_pwrclk.c (a fixed, hardcoded SPLLCON value, matching + * Microchip's own reference firmware for this chip/board family). The + * macros below exist only so that: + * + * 1. pic32mz_lowinit.c's self-consistency sanity check + * (CALC_SYSCLOCK == BOARD_CPU_CLOCK) passes. + * 2. pic32mz_prefetch() picks the correct number of flash wait states + * for the real CPU clock. + * + * They were derived by decoding the actual SPLLCON value + * (WFI32_SPLLCON_VALUE in pic32mz_wfi32_pwrclk.c) field-by-field + * (SPLLREFDIV=5, SPLLFBDIV=150, SPLLPOSTDIV1=6), combined with the + * documented CPU_CLOCK_FREQUENCY=200000000 from Microchip's reference + * firmware (definitions.h) to solve for the crystal frequency - NOT + * taken from a schematic. If pic32mz_wfi32_pwrclk.c's SPLLCON value ever + * changes, these must be recomputed to match. + */ + +#define BOARD_POSC_FREQ 40000000 /* Primary OSC XTAL frequency (derived, see above) */ + +#define BOARD_PLL_INPUT BOARD_POSC_FREQ +#define BOARD_PLL_IDIV 5 /* SPLLREFDIV */ +#define BOARD_PLL_MULT 150 /* SPLLFBDIV */ +#define BOARD_PLL_ODIV 6 /* SPLLPOSTDIV1 */ + +#define BOARD_CPU_CLOCK 200000000 /* CPU clock: 200MHz, per Microchip's + * reference firmware for this chip */ + +/* Peripheral clocks. + * + * Only PBCLK4 is set explicitly by pic32mz_wfi32_pwrclk.c (to divide-by-10, + * i.e. 20MHz, the value used by Microchip's example firmware); + * pic32mz_pbclk() will then apply the same BOARD_PB4DIV value redundantly + * (harmless, see pic32mz_lowinit.c). PBCLK1-3/5 divisors below are this + * NuttX port's own choice, chosen conservatively; they can be tuned later + * once real peripherals are exercised. Peripheral to bus assignments are + * from DS70005425 Table 11-1. + */ + +#define BOARD_PB1DIV 5 /* Divider = 5 */ +#define BOARD_PBCLK1 40000000 /* PBCLK1 = 200MHz/5 = 40MHz (Timers, UART3) */ + +#define BOARD_PBCLK2_ENABLE 1 +#define BOARD_PB2DIV 2 /* Divider = 2 */ +#define BOARD_PBCLK2 100000000 /* PBCLK2 = 200MHz/2 = 100MHz (Ports, I2C1, ADC, CAN) */ + +#define BOARD_PBCLK3_ENABLE 1 +#define BOARD_PB3DIV 4 /* Divider = 4 */ +#define BOARD_PBCLK3 50000000 /* PBCLK3 = 200MHz/4 = 50MHz (UART1/2, SPI, I2C2, IC, OC) */ + +#define BOARD_PBCLK4_ENABLE 1 +#define BOARD_PB4DIV 10 /* Divider = 10 (matches pic32mz_wfi32_pwrclk.c) */ +#define BOARD_PBCLK4 20000000 /* PBCLK4 = 200MHz/10 = 20MHz (RTCC, DSCON) */ + +#define BOARD_PBCLK5_ENABLE 1 +#define BOARD_PB5DIV 2 /* Divider = 2 */ +#define BOARD_PBCLK5 100000000 /* PBCLK5 = 200MHz/2 = 100MHz (Flash, Crypto, SQI) */ + +#undef BOARD_PBCLK6_ENABLE + +/* PIC32MZ-W1 has no PB7/PB8 bus - leave both undefined (see + * pic32mz_lowinit.c/hardware/pic32mz_osc.h for why these must stay + * undefined on this chip). + */ + +#undef BOARD_PBCLK7_ENABLE +#undef BOARD_PBCLK8_ENABLE + +/* Watchdog pre-scaler (not yet used - WDT is left disabled by the + * reference config; revisit if/when WDT support is added for this chip). + */ + +#define BOARD_WD_PRESCALER 1048576 + +/* LED definitions ********************************************************** + * + * Two user LEDs (EV49N51A schematic 02-01134 rev 2), both active high + * (anode on the pin, 330R to GND): + * + * D201 red - RK1 (module pad 34) + * D202 green - RK3 (module pad 35) + * + * When CONFIG_ARCH_LEDS is defined, they are used by the OS as follows: + * + * SYMBOL Meaning GREEN RED + * ----------------- ----------------------- ------- ------- + * LED_STARTED NuttX has been started OFF OFF + * LED_HEAPALLOCATE Heap has been allocated OFF OFF + * LED_IRQSENABLED Interrupts enabled OFF OFF + * LED_STACKCREATED Idle stack created ON OFF + * LED_INIRQ In an interrupt N/C GLOW + * LED_SIGNAL In a signal handler N/C GLOW + * LED_ASSERTION An assertion failed N/C GLOW + * LED_PANIC The system has crashed N/C FLASH + */ + +#define BOARD_LED_RED 0 +#define BOARD_LED_GREEN 1 +#define BOARD_NLEDS 2 + +#define BOARD_LED_RED_BIT (1 << BOARD_LED_RED) +#define BOARD_LED_GREEN_BIT (1 << BOARD_LED_GREEN) + +#define LED_STARTED 0 +#define LED_HEAPALLOCATE 1 +#define LED_IRQSENABLED 2 +#define LED_STACKCREATED 3 +#define LED_INIRQ 4 +#define LED_SIGNAL 4 +#define LED_ASSERTION 4 +#define LED_PANIC 4 + +/* UARTS ******************************************************************** + * + * The console is UART1 on 3-pin header J203 (1=U1RX, 2=U1TX, 3=GND); an + * external 3.3V USB-UART adapter is required, there is no on-board + * debugger/USB-UART bridge. J203 is wired to module pads 29 (U1TX, RA9) + * and 30 (U1RX, RA8), which are UART1's dedicated, non-PPS pins (RA8/RA9 + * have no RPn function). BOARD_U1RX_PPS/BOARD_U1TX_PPS are therefore + * intentionally left undefined so that no PPS routing is programmed. + */ + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/**************************************************************************** + * Inline Functions + ****************************************************************************/ + +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#undef EXTERN +#ifdef __cplusplus +} +#endif + +#endif /* __ASSEMBLY__ */ +#endif /* __BOARDS_MIPS_PIC32MZ_EV49N51A_INCLUDE_BOARD_H */ diff --git a/boards/mips/pic32mz/ev49n51a/scripts/Make.defs b/boards/mips/pic32mz/ev49n51a/scripts/Make.defs new file mode 100644 index 00000000000..3d558c5ede9 --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/scripts/Make.defs @@ -0,0 +1,66 @@ +############################################################################ +# boards/mips/pic32mz/ev49n51a/scripts/Make.defs +# +# SPDX-License-Identifier: Apache-2.0 +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. The +# ASF licenses this file to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance with the +# License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. +# +############################################################################ + +include $(TOPDIR)/.config +include $(TOPDIR)/tools/Config.mk +include $(TOPDIR)/tools/pic32/Config.mk +include $(TOPDIR)/arch/mips/src/mips32/Toolchain.defs + +# mips-debug.ld is plain GNU ld syntax and works with every supported +# toolchain (XC32, Pinguino, generic mips-elf), so override the +# per-toolchain default from Toolchain.defs. + +LDSCRIPT = mips-debug.ld + +# MPLAB XC32 (Linux). XC32 v6+ requires an explicit Device Family Pack +# (DFP) path via -mdfp - it no longer bundles device support. Point +# WFI32E01_DFP_DIR at an extracted Microchip PIC32MZ-W_DFP +# (packs.download.microchip.com) if it is not already at this default +# path. + +ifeq ($(CONFIG_MIPS32_TOOLCHAIN_MICROCHIPL_XC32),y) + MIPS_MPROCESSOR = WFI32E01 + WFI32E01_DFP_DIR ?= $(HOME)/microchip/WFI32-W_DFP + ARCHCPUFLAGS += -mdfp=$(WFI32E01_DFP_DIR) + + # -mprocessor=WFI32E01 lets XC32 emit DSP ASE instructions (e.g. lwx). + # They trap unless CP0 Status.MX is set, which NuttX's head.S does not + # do, and NuttX's MIPS context switch does not save the DSP state, so + # keep the compiler away from the DSP ASE (verified on hardware: the + # first lwx hung the boot). + + ARCHCPUFLAGS += -mno-dsp -mno-dspr2 +endif + +ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT) + +# The linker is invoked directly, not through gcc, so it does not see the +# -EL from ARCHCPUFLAGS (see the note in mips-debug.ld). + +LDFLAGS += -EL + +CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) +CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS) +CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) +CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS) +CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) +AFLAGS := $(CFLAGS) -D__ASSEMBLY__ diff --git a/boards/mips/pic32mz/ev49n51a/scripts/mips-debug.ld b/boards/mips/pic32mz/ev49n51a/scripts/mips-debug.ld new file mode 100644 index 00000000000..687043f05a4 --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/scripts/mips-debug.ld @@ -0,0 +1,305 @@ +/**************************************************************************** + * boards/mips/pic32mz/ev49n51a/scripts/mips-debug.ld + * + * Adapted from boards/mips/pic32mz/flipnclick-pic32mz/scripts/mips-debug.ld + * for the WFI32E01 (PIC32MZ-W1). Memory region addresses/sizes were + * cross-checked against Microchip's PIC32MZ-W_DFP (WFI32E01.atdf) and its + * reference linker script (xc32/WFI32E01/pWFI32E01.ld) - WFI32E01's + * program flash lives at a different physical base (0x10000000) than + * EC/EF (0x1d000000); do not assume EC/EF addresses apply. + * + * The MIPS32 microAptiv exception vector layout (reset/TLB-refill/cache + * error/general/interrupt/EJTAG offsets from EBase) is core-architecture + * defined, not PIC32-family specific, so that part is unchanged from + * EC/EF. + * + * The boot-flash configuration words (.devcfg at 0xbfc55f88, plus FCPN0 + * and FSIGN0) are emitted by pic32mz_head.S; see + * hardware/pic32mzw1_features.h. + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/* Memory Regions ***********************************************************/ + +MEMORY +{ + /* WFI32E01 has 1024Kb (1MB) of program FLASH at physical address + * 0x10000000, always accessed at KSEG0 address 0x9000:0000. + */ + + kseg0_progmem (rx) : ORIGIN = 0x90000000, LENGTH = 1024K + + /* Exception vectors and startup trampoline, in boot flash + * (0xbfc00000, KSEG1). Offsets below the vectors are defined by the + * MIPS32 microAptiv core architecture (EBase-relative), same as on + * PIC32MZ-EC/EF: + * + * REGION PHYSICAL KSEG SIZE + * DESCRIPTION START ADDR (BYTES) + * ------------- ---------- ------ ---------------------- + * Reset 0x1fc00000 KSEG1 512 + * TLB Refill 0x1fc00200 KSEG1 256 + * Cache Error 0x1fc00300 KSEG1 128 + * Others 0x1fc00380 KSEG1 128 + * Interrupt 0x1fc00400 KSEG1 128 + * JTAG 0x1fc00480 KSEG1 16 + * + * Exceptions assume STATUS:BEV=0/1,EXL=0; CAUSE:IV=1; multi-vector + * support disabled - same configuration pic32mz_head.S sets up for + * EC/EF. + */ + + kseg1_reset (rx) : ORIGIN = 0xbfc00000, LENGTH = 384 + kseg1_genexcpt (rx) : ORIGIN = 0xbfc00180, LENGTH = 128 + kseg1_ebexcpt (rx) : ORIGIN = 0xbfc00200, LENGTH = 128 + kseg1_bevexcpt (rx) : ORIGIN = 0xbfc00380, LENGTH = 128 + kseg1_intexcpt (rx) : ORIGIN = 0xbfc00400, LENGTH = 128 + kseg1_dbgexcpt (rx) : ORIGIN = 0xbfc00480, LENGTH = 16 + kseg0_bootmem (rx) : ORIGIN = 0x9fc004ac, LENGTH = 8192-1196 + kseg1_dbgcode (rx) : ORIGIN = 0xbfc02000, LENGTH = 4096-16 + + /* Boot-flash configuration words (primary copy) */ + + kseg1_devcfg (r) : ORIGIN = 0xbfc55f88, LENGTH = 24 + kseg1_devcp (r) : ORIGIN = 0xbfc55fbc, LENGTH = 4 + kseg1_devsign (r) : ORIGIN = 0xbfc55fdc, LENGTH = 4 + + /* WFI32E01 has 256Kb of data memory at physical address 0x00000000, + * always accessed through KSEG1 (no data cache). 640 bytes are set + * aside at the start, matching the margin EC/EF boards reserve. + */ + + kseg1_datamem (rw!x) : ORIGIN = 0xa0000200, LENGTH = 256K - 640 +} + +/* No OUTPUT_FORMAT: XC32 names its little-endian ELF target + * elf32-tradlittlemips while Pinguino's binutils only know + * elf32-littlemips. Make.defs passes -EL instead, so each linker + * picks its own little-endian format. + */ + +OUTPUT_ARCH(mips) +ENTRY(__start) + +SECTIONS +{ + /* Boot FLASH sections */ + + .reset : + { + KEEP (*(.reset)) + } > kseg1_reset + + /* KSEG1 exception handler "trampolines" */ + + .gen_excpt : + { + KEEP (*(.gen_excpt)) + } > kseg1_genexcpt + + .ebase_excpt : + { + KEEP (*(.ebase_excpt)) + } > kseg1_ebexcpt + + .bev_excpt : + { + KEEP (*(.bev_excpt)) + } > kseg1_bevexcpt + + .int_excpt : + { + KEEP (*(.int_excpt)) + } > kseg1_intexcpt + + .dbg_excpt = ORIGIN(kseg1_dbgexcpt); + + .start : + { + /* KSEG0 Reset startup logic */ + + *(.start) + + /* KSEG0 exception handlers */ + + *(.nmi_handler) + *(.bev_handler) + *(.int_handler) + } > kseg0_bootmem + + .dbg_code = ORIGIN(kseg1_dbgcode); + + .devcfg : + { + KEEP (*(.devcfg)) + } > kseg1_devcfg + + .devcfg_cp : + { + KEEP (*(.devcfg_cp)) + } > kseg1_devcp + + .devcfg_sign : + { + KEEP (*(.devcfg_sign)) + } > kseg1_devsign + + /* ABI flags note: not needed in the image; discard it so it is not + * placed as an orphan into the configuration regions above. + */ + + /DISCARD/ : { *(.MIPS.abiflags) } + + /* Program FLASH sections */ + + .text : + { + _stext = ABSOLUTE(.); + *(.text .text.*) + *(.stub) + KEEP (*(.text.*personality*)) + *(.gnu.linkonce.t.*) + *(.gnu.warning) + *(.mips16.fn.*) + *(.mips16.call.*) + + /* Read-only data is included in the text section */ + + *(.rodata .rodata.*) + *(.rodata1) + *(.gnu.linkonce.r.*) + + /* Small initialized constant global and static data */ + + *(.sdata2 .sdata2.*) + *(.gnu.linkonce.s2.*) + + /* Uninitialized constant global and static data */ + + *(.sbss2 .sbss2.*) + *(.gnu.linkonce.sb2.*) + _etext = ABSOLUTE(.); + } > kseg0_progmem + + /* Initialization data begins here in progmem */ + + _data_loaddr = LOADADDR(.data); + + .eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) } + .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } + + .data : + { + _sdata = ABSOLUTE(.); + *(.data .data.*) + *(.gnu.linkonce.d.*) + KEEP (*(.gnu.linkonce.d.*personality*)) + *(.data1) + } > kseg1_datamem AT > kseg0_progmem + + .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } + _gp = ALIGN(16) + 0x7FF0 ; + + .got : + { + *(.got.plt) *(.got) + } > kseg1_datamem AT > kseg0_progmem + + .sdata : + { + *(.sdata .sdata.* .gnu.linkonce.s.*) + } > kseg1_datamem AT > kseg0_progmem + + .lit8 : + { + *(.lit8) + } > kseg1_datamem AT > kseg0_progmem + + .lit4 : + { + *(.lit4) + . = ALIGN(4); + _edata = ABSOLUTE(.); + } >kseg1_datamem AT>kseg0_progmem + + .sbss : + { + . = ALIGN(16); + _sbss = ABSOLUTE(.); + *(.dynsbss) + *(.sbss .sbss.* .gnu.linkonce.sb.*) + *(.scommon) + } >kseg1_datamem + + .bss : + { + *(.dynbss) + *(.bss .bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + . = ALIGN(16); + _ebss = ABSOLUTE(.); + } > kseg1_datamem + + /* Stabs debugging sections */ + + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + + /* DWARF debug sections */ + /* DWARF 1 */ + + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + + /* GNU DWARF 1 extensions */ + + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + + /* DWARF 1.1 and DWARF 2 */ + + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + + /* DWARF 2 */ + + .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + + /* SGI/MIPS DWARF 2 extensions */ + + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } + + /DISCARD/ : { *(.note.GNU-stack) } +} diff --git a/boards/mips/pic32mz/ev49n51a/src/Makefile b/boards/mips/pic32mz/ev49n51a/src/Makefile new file mode 100644 index 00000000000..f12af7dadd4 --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/src/Makefile @@ -0,0 +1,35 @@ +############################################################################ +# boards/mips/pic32mz/ev49n51a/src/Makefile +# +# SPDX-License-Identifier: Apache-2.0 +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. The +# ASF licenses this file to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance with the +# License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. +# +############################################################################ + +include $(TOPDIR)/Make.defs + +CSRCS = pic32mz_boot.c pic32mz_bringup.c + +ifeq ($(CONFIG_PIC32MZ_SPI1),y) +CSRCS += pic32mz_spi.c +endif + +ifeq ($(CONFIG_ARCH_LEDS),y) +CSRCS += pic32mz_autoleds.c +endif + +include $(TOPDIR)/boards/Board.mk diff --git a/boards/mips/pic32mz/ev49n51a/src/ev49n51a.h b/boards/mips/pic32mz/ev49n51a/src/ev49n51a.h new file mode 100644 index 00000000000..2e2f0e1ddda --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/src/ev49n51a.h @@ -0,0 +1,95 @@ +/**************************************************************************** + * boards/mips/pic32mz/ev49n51a/src/ev49n51a.h + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +#ifndef __BOARDS_MIPS_PIC32MZ_EV49N51A_SRC_EV49N51A_H +#define __BOARDS_MIPS_PIC32MZ_EV49N51A_SRC_EV49N51A_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> + +#include "pic32mz_gpio.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* LEDs: D201 red on RK1, D202 green on RK3, both active high (see + * include/board.h). + */ + +#define GPIO_LED_RED (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORTK | GPIO_PIN1) +#define GPIO_LED_GREEN (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORTK | GPIO_PIN3) + +/* SST26VF032B serial flash (U202) on SPI1: chip select on RA1, active low, + * initially deselected. + */ + +#define GPIO_SST26_CS (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTA | GPIO_PIN1) + +/* SST26 MTD partition is exported as /dev/mtdblock<SST26_MTD_MINOR> */ + +#define SST26_MTD_MINOR 0 + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Name: pic32mz_bringup + * + * Description: + * Bring up board features. + * + ****************************************************************************/ + +int pic32mz_bringup(void); + +/**************************************************************************** + * Name: pic32mz_led_initialize + * + * Description: + * Configure on-board LED GPIO for output (CONFIG_ARCH_LEDS only). + * + ****************************************************************************/ + +#ifdef CONFIG_ARCH_LEDS +void pic32mz_led_initialize(void); +#endif + +/**************************************************************************** + * Name: pic32mz_spidev_initialize + * + * Description: + * Configure the SPI chip select GPIOs. + * + ****************************************************************************/ + +#ifdef CONFIG_PIC32MZ_SPI1 +void pic32mz_spidev_initialize(void); +#endif + +#endif /* __BOARDS_MIPS_PIC32MZ_EV49N51A_SRC_EV49N51A_H */ diff --git a/boards/mips/pic32mz/ev49n51a/src/pic32mz_autoleds.c b/boards/mips/pic32mz/ev49n51a/src/pic32mz_autoleds.c new file mode 100644 index 00000000000..a78ca9d9cb2 --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/src/pic32mz_autoleds.c @@ -0,0 +1,88 @@ +/**************************************************************************** + * boards/mips/pic32mz/ev49n51a/src/pic32mz_autoleds.c + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> +#include <stdbool.h> + +#include <nuttx/board.h> +#include <arch/board/board.h> + +#include "mips_internal.h" +#include "pic32mz_gpio.h" +#include "ev49n51a.h" + +#ifdef CONFIG_ARCH_LEDS + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: pic32mz_led_initialize + ****************************************************************************/ + +void pic32mz_led_initialize(void) +{ + pic32mz_configgpio(GPIO_LED_RED); + pic32mz_configgpio(GPIO_LED_GREEN); +} + +/**************************************************************************** + * Name: board_autoled_on + ****************************************************************************/ + +void board_autoled_on(int led) +{ + switch (led) + { + case LED_STACKCREATED: + pic32mz_gpiowrite(GPIO_LED_GREEN, true); + break; + + case LED_INIRQ: + pic32mz_gpiowrite(GPIO_LED_RED, true); + break; + + default: + break; + } +} + +/**************************************************************************** + * Name: board_autoled_off + ****************************************************************************/ + +void board_autoled_off(int led) +{ + if (led == LED_INIRQ) + { + pic32mz_gpiowrite(GPIO_LED_RED, false); + } +} + +#endif /* CONFIG_ARCH_LEDS */ diff --git a/boards/mips/pic32mz/ev49n51a/src/pic32mz_boot.c b/boards/mips/pic32mz/ev49n51a/src/pic32mz_boot.c new file mode 100644 index 00000000000..3186911c1f5 --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/src/pic32mz_boot.c @@ -0,0 +1,81 @@ +/**************************************************************************** + * boards/mips/pic32mz/ev49n51a/src/pic32mz_boot.c + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <nuttx/arch.h> +#include <nuttx/board.h> + +#include "ev49n51a.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: pic32mz_boardinitialize + * + * Description: + * All PIC32MZ architectures must provide the following entry point. + * This entry point is called early in the initialization -- after all + * memory has been configured and mapped but before any devices have been + * initialized. + * + ****************************************************************************/ + +void pic32mz_boardinitialize(void) +{ +#ifdef CONFIG_PIC32MZ_SPI1 + pic32mz_spidev_initialize(); +#endif + +#ifdef CONFIG_ARCH_LEDS + pic32mz_led_initialize(); +#endif +} + +/**************************************************************************** + * Name: board_late_initialize + * + * Description: + * If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional + * initialization call will be performed in the boot-up sequence to a + * function called board_late_initialize(). board_late_initialize() will + * be called immediately after up_initialize() is called and just before + * the initial application is started. This additional initialization + * phase may be used, for example, to initialize board-specific device + * drivers. + * + ****************************************************************************/ + +#ifdef CONFIG_BOARD_LATE_INITIALIZE +void board_late_initialize(void) +{ + /* Perform board initialization */ + + pic32mz_bringup(); +} +#endif /* CONFIG_BOARD_LATE_INITIALIZE */ diff --git a/boards/mips/pic32mz/ev49n51a/src/pic32mz_bringup.c b/boards/mips/pic32mz/ev49n51a/src/pic32mz_bringup.c new file mode 100644 index 00000000000..0d15ab279b6 --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/src/pic32mz_bringup.c @@ -0,0 +1,99 @@ +/**************************************************************************** + * boards/mips/pic32mz/ev49n51a/src/pic32mz_bringup.c + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sys/types.h> +#include <syslog.h> + +#include <nuttx/fs/fs.h> + +#ifdef CONFIG_MTD_SST26 +# include <nuttx/mtd/mtd.h> +# include "pic32mz_spi.h" +#endif + +#include "ev49n51a.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: pic32mz_bringup + * + * Description: + * Bring up board features + * + ****************************************************************************/ + +int pic32mz_bringup(void) +{ + int ret = OK; + +#ifdef CONFIG_FS_PROCFS + /* Mount the procfs file system */ + + ret = nx_mount(NULL, "/proc", "procfs", 0, NULL); + if (ret < 0) + { + syslog(LOG_ERR, "ERROR: Failed to mount procfs at /proc: %d\n", + ret); + } +#endif + +#if defined(CONFIG_MTD_SST26) && defined(CONFIG_PIC32MZ_SPI1) + struct spi_dev_s *spi; + struct mtd_dev_s *mtd; + + /* SST26VF032B serial flash on SPI1 */ + + spi = pic32mz_spibus_initialize(1); + if (spi == NULL) + { + syslog(LOG_ERR, "ERROR: Failed to initialize SPI1\n"); + } + else + { + mtd = sst26_initialize_spi(spi, 0); + if (mtd == NULL) + { + syslog(LOG_ERR, "ERROR: Failed to bind SPI1 to the SST26\n"); + } + else + { + ret = ftl_initialize(SST26_MTD_MINOR, mtd); + if (ret < 0) + { + syslog(LOG_ERR, "ERROR: ftl_initialize() failed: %d\n", ret); + } + } + } +#endif + + UNUSED(ret); + return OK; +} diff --git a/boards/mips/pic32mz/ev49n51a/src/pic32mz_spi.c b/boards/mips/pic32mz/ev49n51a/src/pic32mz_spi.c new file mode 100644 index 00000000000..7863baae66b --- /dev/null +++ b/boards/mips/pic32mz/ev49n51a/src/pic32mz_spi.c @@ -0,0 +1,98 @@ +/**************************************************************************** + * boards/mips/pic32mz/ev49n51a/src/pic32mz_spi.c + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <inttypes.h> +#include <stdint.h> +#include <stdbool.h> +#include <errno.h> +#include <nuttx/debug.h> + +#include <nuttx/spi/spi.h> + +#include "pic32mz_gpio.h" +#include "pic32mz_spi.h" + +#include "ev49n51a.h" + +#ifdef CONFIG_PIC32MZ_SPI1 + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: pic32mz_spidev_initialize + * + * Description: + * Configure the SPI chip select GPIOs. SPI1 itself uses its dedicated + * pins (SCK1 RC6, SDI1 RC7, SDO1 RC8), selected by DEVCFG1.HSSPIEN. + * + ****************************************************************************/ + +void pic32mz_spidev_initialize(void) +{ + pic32mz_configgpio(GPIO_SST26_CS); +} + +/**************************************************************************** + * Name: pic32mz_spi1select, pic32mz_spi1status and pic32mz_spi1cmddata + * + * Description: + * Board-specific select, status and cmddata methods of the SPI1 + * interface (see include/nuttx/spi/spi.h). The only device on SPI1 is + * the SST26VF032B serial flash. + * + ****************************************************************************/ + +void pic32mz_spi1select(struct spi_dev_s *dev, uint32_t devid, + bool selected) +{ + spiinfo("devid: %08" PRIx32 " CS: %s\n", + devid, selected ? "assert" : "de-assert"); + + if (devid == SPIDEV_FLASH(0)) + { + /* CS is active low */ + + pic32mz_gpiowrite(GPIO_SST26_CS, !selected); + } +} + +uint8_t pic32mz_spi1status(struct spi_dev_s *dev, uint32_t devid) +{ + return 0; +} + +#ifdef CONFIG_SPI_CMDDATA +int pic32mz_spi1cmddata(struct spi_dev_s *dev, uint32_t devid, bool cmd) +{ + return -ENODEV; +} +#endif + +#endif /* CONFIG_PIC32MZ_SPI1 */
