From: Keith Packard Date: Mon, 24 Jun 2013 21:23:53 +0000 (-0700) Subject: altos/lpc: Add boot loader X-Git-Tag: 1.2.9.4~149 X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=0dd148e388944d8d265da51d62806c4a00b2c13d altos/lpc: Add boot loader Support the USB boot loader, add USB pull-up support. Signed-off-by: Keith Packard --- diff --git a/src/easymini-v0.1/Makefile b/src/easymini-v0.1/Makefile index dfa7624c..9847656c 100644 --- a/src/easymini-v0.1/Makefile +++ b/src/easymini-v0.1/Makefile @@ -18,6 +18,7 @@ INC = \ # ALTOS_SRC = \ ao_interrupt.c \ + ao_boot_chain.c \ ao_romconfig.c \ ao_product.c \ ao_mutex.c \ @@ -48,7 +49,7 @@ ALTOS_SRC = \ PRODUCT=EasyMini-v0.1 PRODUCT_DEF=-DEASYMINI_V_0_1 -IDPRODUCT=0x000a +IDPRODUCT=0x0026 CFLAGS = $(PRODUCT_DEF) $(LPC_CFLAGS) -g -Os @@ -62,7 +63,7 @@ all: $(PROG) LDFLAGS=-L../lpc -Wl,-Taltos.ld -$(PROG): Makefile $(OBJ) +$(PROG): Makefile $(OBJ) altos.ld $(call quiet,CC) $(LDFLAGS) $(CFLAGS) -o $(PROG) $(OBJ) $(SAT_CLIB) -lgcc ao_product.h: ao-make-product.5c ../Version diff --git a/src/easymini-v0.1/ao_pins.h b/src/easymini-v0.1/ao_pins.h index e14e1eb4..6f102dbe 100644 --- a/src/easymini-v0.1/ao_pins.h +++ b/src/easymini-v0.1/ao_pins.h @@ -18,6 +18,8 @@ #define HAS_BEEP 1 #define HAS_LED 1 +#define IS_FLASH_LOADER 0 + /* Crystal on the board */ #define AO_LPC_CLKIN 12000000 @@ -38,6 +40,9 @@ #define HAS_USB_CONNECT 0 #define HAS_USB_VBUS 0 +#define HAS_USB_PULLUP 1 +#define AO_USB_PULLUP_PORT 0 +#define AO_USB_PULLUP_PIN 20 #define PACKET_HAS_SLAVE 0 diff --git a/src/easymini-v0.1/flash-loader/Makefile b/src/easymini-v0.1/flash-loader/Makefile new file mode 100644 index 00000000..ab828b22 --- /dev/null +++ b/src/easymini-v0.1/flash-loader/Makefile @@ -0,0 +1,8 @@ +# +# AltOS flash loader build +# +# + +TOPDIR=../.. +HARDWARE=easymini-v0.1 +include $(TOPDIR)/lpc/Makefile-flash.defs diff --git a/src/easymini-v0.1/flash-loader/ao_pins.h b/src/easymini-v0.1/flash-loader/ao_pins.h new file mode 100644 index 00000000..4330151d --- /dev/null +++ b/src/easymini-v0.1/flash-loader/ao_pins.h @@ -0,0 +1,33 @@ +/* + * Copyright © 2013 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#ifndef _AO_PINS_H_ +#define _AO_PINS_H_ + +#include + +#define AO_BOOT_PIN 1 +#define AO_BOOT_APPLICATION_GPIO 0 +#define AO_BOOT_APPLICATION_PIN 19 +#define AO_BOOT_APPLICATION_VALUE 1 +#define AO_BOOT_APPLICATION_MODE AO_EXTI_MODE_PULL_UP + +#define HAS_USB_PULLUP 1 +#define AO_USB_PULLUP_PORT 0 +#define AO_USB_PULLUP_PIN 20 + +#endif /* _AO_PINS_H_ */ diff --git a/src/lpc/altos-loader.ld b/src/lpc/altos-loader.ld new file mode 100644 index 00000000..4f78f552 --- /dev/null +++ b/src/lpc/altos-loader.ld @@ -0,0 +1,80 @@ +/* + * Copyright © 2012 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +MEMORY { + rom : ORIGIN = 0x00000000, LENGTH = 4K + ram : ORIGIN = 0x10000000, LENGTH = 4k - 128 - 32 + usb (!x) : ORIGIN = 0x20004000 + 2K - 256, LENGTH = 256 + stack (!w) : ORIGIN = 0x10000000 + 4K - 128 - 32, LENGTH = 128 +} + +INCLUDE registers.ld + +EXTERN (lpc_interrupt_vector) + +SECTIONS { + /* + * Rom contents + */ + + .interrupt : { + __text_start__ = .; + *(.interrupt) /* Interrupt vectors */ + + } > rom + + .text ORIGIN(rom) + 0x100 : { + ao_romconfig.o(.romconfig*) + ao_product.o(.romconfig*) + + *(.text*) /* Executable code */ + *(.ARM.exidx* .gnu.linkonce.armexidx.*) + *(.rodata*) /* Constants */ + __text_end__ = .; + } > rom + + /* Boot data which must live at the start of ram so that + * the application and bootloader share the same addresses. + * This must be all uninitialized data + */ + .boot ORIGIN(ram) + SIZEOF(.interrupt) (NOLOAD) : { + __boot_start__ = .; + *(.boot) + __boot_end__ = .; + } >ram + + /* Data -- relocated to RAM, but written to ROM + */ + .data : { + __data_start__ = .; + *(.data) /* initialized data */ + __data_end__ = .; + } >ram AT>rom + + + .bss : { + __bss_start__ = .; + *(.bss) + *(COMMON) + __bss_end__ = .; + } >ram + + PROVIDE(__stack__ = ORIGIN(ram) + LENGTH(ram)); + PROVIDE(end = .); +} + +ENTRY(start); diff --git a/src/lpc/altos-standalone.ld b/src/lpc/altos-standalone.ld new file mode 100644 index 00000000..032406f8 --- /dev/null +++ b/src/lpc/altos-standalone.ld @@ -0,0 +1,85 @@ +/* + * Copyright © 2012 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +MEMORY { + rom (rx) : ORIGIN = 0x00000000, LENGTH = 32K + ram (!w) : ORIGIN = 0x10000000, LENGTH = 4K - 128 - 32 + usb (!x) : ORIGIN = 0x20004000 + 2K - 256, LENGTH = 256 + stack (!w) : ORIGIN = 0x10000000 + 4K - 128 - 32, LENGTH = 128 +} + +INCLUDE registers.ld + +EXTERN (lpc_interrupt_vector) + +SECTIONS { + /* + * Rom contents + */ + + .text ORIGIN(rom) : { + __text_start__ = .; + *(.interrupt) /* Interrupt vectors */ + + . = ORIGIN(rom) + 0x100; + + ao_romconfig.o(.romconfig*) + ao_product.o(.romconfig*) + + *(.text*) /* Executable code */ + *(.rodata*) /* Constants */ + + } > rom + + .ARM.exidx : { + *(.ARM.exidx* .gnu.linkonce.armexidx.*) + __text_end__ = .; + } > rom + + /* Boot data which must live at the start of ram so that + * the application and bootloader share the same addresses. + * This must be all uninitialized data + */ + .boot (NOLOAD) : { + __boot_start__ = .; + *(.boot) + . = ALIGN(4); + __boot_end__ = .; + } >ram + + /* Data -- relocated to RAM, but written to ROM + */ + .data ORIGIN(ram) : AT (ADDR(.ARM.exidx) + SIZEOF (.ARM.exidx)) { + __data_start__ = .; + *(.data) /* initialized data */ + __data_end__ = .; + __bss_start__ = .; + } >ram + + .bss : { + *(.bss) + *(COMMON) + __bss_end__ = .; + } >ram + PROVIDE(end = .); + + PROVIDE(__stack__ = ORIGIN(stack) + LENGTH(stack)); +} + +ENTRY(start); + + diff --git a/src/lpc/altos.ld b/src/lpc/altos.ld index 4d6f35a8..00d4f18a 100644 --- a/src/lpc/altos.ld +++ b/src/lpc/altos.ld @@ -16,7 +16,7 @@ */ MEMORY { - rom (rx) : ORIGIN = 0x00000000, LENGTH = 32K + rom (rx) : ORIGIN = 0x00001000, LENGTH = 28K ram (!w) : ORIGIN = 0x10000000, LENGTH = 4K - 128 usb (!x) : ORIGIN = 0x20004000 + 2K - 256, LENGTH = 256 stack (!w) : ORIGIN = 0x10000000 + 4K - 128, LENGTH = 128 @@ -31,11 +31,15 @@ SECTIONS { * Rom contents */ - .text ORIGIN(rom) : { - __text_start__ = .; + .interrupt ORIGIN(ram) : AT (ORIGIN(rom)) { + __interrupt_start__ = .; + __interrupt_rom__ = ORIGIN(rom); *(.interrupt) /* Interrupt vectors */ + __interrupt_end__ = .; + } > ram - . = ORIGIN(rom) + 0x100; + .text ORIGIN(rom) + 0x100 : { + __text_start__ = .; ao_romconfig.o(.romconfig*) ao_product.o(.romconfig*) @@ -50,9 +54,20 @@ SECTIONS { __text_end__ = .; } > rom + /* Boot data which must live at the start of ram so that + * the application and bootloader share the same addresses. + * This must be all uninitialized data + */ + .boot : { + __boot_start__ = .; + *(.boot) + . = ALIGN(4); + __boot_end__ = .; + } >ram + /* Data -- relocated to RAM, but written to ROM */ - .data ORIGIN(ram) : AT (ADDR(.ARM.exidx) + SIZEOF (.ARM.exidx)) { + .data : AT (ADDR(.ARM.exidx) + SIZEOF (.ARM.exidx)) { __data_start__ = .; *(.data) /* initialized data */ __data_end__ = .; @@ -60,6 +75,7 @@ SECTIONS { } >ram .bss : { + __bss_start__ = .; *(.bss) *(COMMON) __bss_end__ = .; diff --git a/src/lpc/ao_arch.h b/src/lpc/ao_arch.h index f605e3d2..a8d3cfc4 100644 --- a/src/lpc/ao_arch.h +++ b/src/lpc/ao_arch.h @@ -137,4 +137,8 @@ ao_serial_init(void); #define AO_SPI_SPEED_FAST AO_SPI_SPEED_12MHz +#define AO_BOOT_APPLICATION_BASE ((uint32_t *) 0x00001000) +#define AO_BOOT_LOADER_BASE ((uint32_t *) 0x00000000) +#define HAS_BOOT_LOADER 1 + #endif /* _AO_ARCH_H_ */ diff --git a/src/lpc/ao_arch_funcs.h b/src/lpc/ao_arch_funcs.h index 1bbb14f5..9a3219a2 100644 --- a/src/lpc/ao_arch_funcs.h +++ b/src/lpc/ao_arch_funcs.h @@ -22,12 +22,13 @@ #define ao_spi_put_bit(reg,bit,pin,bus) ao_spi_put_mask(reg,(1< + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#ifndef _AO_BOOT_H_ +#define _AO_BOOT_H_ + +void +ao_boot_chain(uint32_t *base); + +void +ao_boot_check_pin(void); + +/* Return true to switch to application (if present) */ +int +ao_boot_check_chain(void); + +void +ao_boot_reboot(uint32_t *base); + +static inline void +ao_boot_loader(void) { + ao_boot_reboot(AO_BOOT_LOADER_BASE); +} + +#endif /* _AO_BOOT_H_ */ diff --git a/src/lpc/ao_boot_chain.c b/src/lpc/ao_boot_chain.c new file mode 100644 index 00000000..a08d1f2c --- /dev/null +++ b/src/lpc/ao_boot_chain.c @@ -0,0 +1,67 @@ +/* + * Copyright © 2013 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include +#include + +void +ao_boot_chain(uint32_t *base) +{ + uint32_t sp; + uint32_t pc; + + sp = base[0]; + pc = base[1]; + if (0x00000100 <= pc && pc <= 0x00008000 && (pc & 1) == 1) { + asm ("mov sp, %0" : : "r" (sp)); + asm ("mov lr, %0" : : "r" (pc)); + asm ("bx lr"); + } +} + +#define AO_BOOT_SIGNAL 0x5a5aa5a5 +#define AO_BOOT_CHECK 0xc3c33c3c + +struct ao_boot { + uint32_t *base; + uint32_t signal; + uint32_t check; +}; + +static struct ao_boot __attribute__ ((section(".boot"))) ao_boot; + +int +ao_boot_check_chain(void) +{ + if (ao_boot.signal == AO_BOOT_SIGNAL && ao_boot.check == AO_BOOT_CHECK) { + ao_boot.signal = 0; + ao_boot.check = 0; + if (ao_boot.base == 0) + return 0; + ao_boot_chain(ao_boot.base); + } + return 1; +} + +void +ao_boot_reboot(uint32_t *base) +{ + ao_boot.base = base; + ao_boot.signal = AO_BOOT_SIGNAL; + ao_boot.check = AO_BOOT_CHECK; + ao_arch_reboot(); +} diff --git a/src/lpc/ao_boot_pin.c b/src/lpc/ao_boot_pin.c new file mode 100644 index 00000000..51ecc0a9 --- /dev/null +++ b/src/lpc/ao_boot_pin.c @@ -0,0 +1,46 @@ +/* + * Copyright © 2013 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include +#include +#include + +void +ao_boot_check_pin(void) +{ + uint16_t v; + + /* Enable power interface clock */ +// stm_rcc.apb1enr |= (1 << STM_RCC_APB1ENR_PWREN); + + /* Enable the input pin */ + ao_enable_input(AO_BOOT_APPLICATION_GPIO, AO_BOOT_APPLICATION_PIN, + AO_BOOT_APPLICATION_MODE); + + for (v = 0; v < 100; v++) + ao_arch_nop(); + + /* Read the value */ + v = ao_gpio_get(AO_BOOT_APPLICATION_GPIO, AO_BOOT_APPLICATION_PIN, AO_BOOT_APPLICATION); + + /* Reset the chip to turn off the port and the power interface clock */ + ao_gpio_set_mode(AO_BOOT_APPLICATION_GPIO, AO_BOOT_APPLICATION_PIN, 0); + ao_disable_port(AO_BOOT_APPLICATION_GPIO); +// stm_rcc.apb1enr &= ~(1 << STM_RCC_APB1ENR_PWREN); + if (v == AO_BOOT_APPLICATION_VALUE) + ao_boot_chain(AO_BOOT_APPLICATION_BASE); +} diff --git a/src/lpc/ao_flash.h b/src/lpc/ao_flash.h new file mode 100644 index 00000000..aaf66b39 --- /dev/null +++ b/src/lpc/ao_flash.h @@ -0,0 +1,30 @@ +/* + * Copyright © 2013 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#ifndef _AO_FLASH_H_ +#define _AO_FLASH_H_ + +uint32_t +ao_flash_erase_page(uint8_t *page); + +uint32_t +ao_flash_page(uint8_t *page, uint8_t *src); + +uint32_t +ao_lpc_read_part_id(void); + +#endif /* _AO_FLASH_H_ */ diff --git a/src/lpc/ao_flash_loader_lpc.c b/src/lpc/ao_flash_loader_lpc.c new file mode 100644 index 00000000..2ab548cf --- /dev/null +++ b/src/lpc/ao_flash_loader_lpc.c @@ -0,0 +1,32 @@ +/* + * Copyright © 2013 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include "ao.h" +#include +#include +#include + +int +main(void) +{ + ao_clock_init(); + + ao_usb_init(); + + ao_flash_task(); + return 0; +} diff --git a/src/lpc/ao_flash_lpc_pins.h b/src/lpc/ao_flash_lpc_pins.h new file mode 100644 index 00000000..e2243d5c --- /dev/null +++ b/src/lpc/ao_flash_lpc_pins.h @@ -0,0 +1,32 @@ +/* + * Copyright © 2013 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#ifndef _AO_FLASH_LPC_PINS_H_ +#define _AO_FLASH_LPC_PINS_H_ + +#include + +/* Crystal on the board */ +#define AO_LPC_CLKIN 12000000 + +/* Main clock frequency. 48MHz for USB so we don't use the USB PLL */ +#define AO_LPC_CLKOUT 48000000 + +/* System clock frequency */ +#define AO_LPC_SYSCLK 24000000 + +#endif /* _AO_FLASH_STM_PINS_H_ */ diff --git a/src/lpc/ao_interrupt.c b/src/lpc/ao_interrupt.c index b5e67007..c4dc7867 100644 --- a/src/lpc/ao_interrupt.c +++ b/src/lpc/ao_interrupt.c @@ -17,12 +17,25 @@ #include #include +#include + +#ifndef IS_FLASH_LOADER +#error Should define IS_FLASH_LOADER +#define IS_FLASH_LOADER 0 +#endif + +#if !IS_FLASH_LOADER +#define RELOCATE_INTERRUPT 1 +#endif extern void main(void); extern char __stack__; extern char __text_start__, __text_end__; extern char __data_start__, __data_end__; extern char __bss_start__, __bss_end__; +#if RELOCATE_INTERRUPT +extern char __interrupt_rom__, __interrupt_start__, __interrupt_end__; +#endif /* Interrupt functions */ @@ -35,10 +48,18 @@ void lpc_ignore_isr(void) { } -int x; - void start(void) { - x = 0; +#ifdef AO_BOOT_CHAIN + if (ao_boot_check_chain()) { +#ifdef AO_BOOT_PIN + ao_boot_check_pin(); +#endif + } +#endif +#if RELOCATE_INTERRUPT + memcpy(&__interrupt_start__, &__interrupt_rom__, &__interrupt_end__ - &__interrupt_start__); + lpc_scb.sysmemremap = LPC_SCB_SYSMEMREMAP_MAP_RAM << LPC_SCB_SYSMEMREMAP_MAP; +#endif memcpy(&__data_start__, &__text_end__, &__data_end__ - &__data_start__); memset(&__bss_start__, '\0', &__bss_end__ - &__bss_start__); main(); diff --git a/src/lpc/ao_usb_lpc.c b/src/lpc/ao_usb_lpc.c index 4e6b9c66..144d1075 100644 --- a/src/lpc/ao_usb_lpc.c +++ b/src/lpc/ao_usb_lpc.c @@ -19,6 +19,16 @@ #include "ao_usb.h" #include "ao_product.h" +#ifndef USE_USB_STDIO +#define USE_USB_STDIO 1 +#endif + +#if USE_USB_STDIO +#define AO_USB_OUT_SLEEP_ADDR (&ao_stdin_ready) +#else +#define AO_USB_OUT_SLEEP_ADDR (&ao_usb_out_avail) +#endif + #define USB_DEBUG 0 #define USB_DEBUG_DATA 0 #define USB_ECHO 0 @@ -652,7 +662,7 @@ lpc_usb_irq_isr(void) _rx_dbg1("RX ISR", *ao_usb_epn_out(AO_USB_OUT_EP)); ao_usb_out_avail = 1; _rx_dbg0("out avail set"); - ao_wakeup(&ao_stdin_ready); + ao_wakeup(AO_USB_OUT_SLEEP_ADDR) _rx_dbg0("stdin awoken"); } @@ -811,7 +821,7 @@ ao_usb_getchar(void) ao_arch_block_interrupts(); while ((c = _ao_usb_pollchar()) == AO_READ_AGAIN) - ao_sleep(&ao_stdin_ready); + ao_sleep(AO_USB_OUT_SLEEP_ADDR); ao_arch_release_interrupts(); return c; } @@ -821,6 +831,9 @@ ao_usb_disable(void) { ao_arch_block_interrupts(); +#if HAS_USB_PULLUP + ao_gpio_set(AO_USB_PULLUP_PORT, AO_USB_PULLUP_PIN, AO_USB_PULLUP, 0); +#endif /* Disable interrupts */ lpc_usb.inten = 0; @@ -923,6 +936,10 @@ ao_usb_enable(void) for (t = 0; t < 1000; t++) ao_arch_nop(); +#if HAS_USB_PULLUP + ao_gpio_set(AO_USB_PULLUP_PORT, AO_USB_PULLUP_PIN, AO_USB_PULLUP, 1); +#endif + ao_usb_set_ep0(); } @@ -959,6 +976,10 @@ __code struct ao_cmds ao_usb_cmds[] = { void ao_usb_init(void) { +#if HAS_USB_PULLUP + ao_enable_output(AO_USB_PULLUP_PORT, AO_USB_PULLUP_PIN, AO_USB_PULLUP, 0); +#endif + ao_usb_enable(); debug ("ao_usb_init\n"); @@ -968,7 +989,7 @@ ao_usb_init(void) #if USB_DEBUG ao_cmd_register(&ao_usb_cmds[0]); #endif -#if !USB_ECHO +#if USE_USB_STDIO ao_add_stdio(_ao_usb_pollchar, ao_usb_putchar, ao_usb_flush); #endif } diff --git a/src/lpc/lpc.h b/src/lpc/lpc.h index 8fb78649..3300c86f 100644 --- a/src/lpc/lpc.h +++ b/src/lpc/lpc.h @@ -486,6 +486,11 @@ struct lpc_scb { extern struct lpc_scb lpc_scb; +#define LPC_SCB_SYSMEMREMAP_MAP 0 +# define LPC_SCB_SYSMEMREMAP_MAP_BOOT_LOADER 0 +# define LPC_SCB_SYSMEMREMAP_MAP_RAM 1 +# define LPC_SCB_SYSMEMREMAP_MAP_FLASH 2 + #define LPC_SCB_PRESETCTRL_SSP0_RST_N 0 #define LPC_SCB_PRESETCTRL_I2C_RST_N 1 #define LPC_SCB_PRESETCTRL_SSP1_RST_N 2 diff --git a/src/product/ao_flash_pins.h b/src/product/ao_flash_pins.h index b774df6d..439ba75c 100644 --- a/src/product/ao_flash_pins.h +++ b/src/product/ao_flash_pins.h @@ -37,4 +37,6 @@ #define AO_BOOT_CHAIN 1 #define AO_BOOT_PIN 1 +#define IS_FLASH_LOADER 1 + #endif /* _AO_FLASH_PINS_H_ */ diff --git a/src/product/ao_flash_task.c b/src/product/ao_flash_task.c index fdc4d0aa..4cfbf75f 100644 --- a/src/product/ao_flash_task.c +++ b/src/product/ao_flash_task.c @@ -73,7 +73,7 @@ static void ao_block_erase(void) { uint32_t addr = ao_get_hex32(); - uint32_t *p = (uint32_t *) addr; + void *p = (void *) addr; ao_flash_erase_page(p); } @@ -82,11 +82,8 @@ static void ao_block_write(void) { uint32_t addr = ao_get_hex32(); - uint32_t *p = (uint32_t *) addr; - union { - uint8_t data8[256]; - uint32_t data32[64]; - } u; + void *p = (void *) addr; + uint8_t data[256]; uint16_t i; if (addr < (uint32_t) AO_BOOT_APPLICATION_BASE) { @@ -94,8 +91,8 @@ ao_block_write(void) return; } for (i = 0; i < 256; i++) - u.data8[i] = ao_usb_getchar(); - ao_flash_page(p, u.data32); + data[i] = ao_usb_getchar(); + ao_flash_page(p, (void *) data); } static void