X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/8fcbf652dab8846dd8a2dcb17812af6528539950..2561caa24c84be1f93649a8c5abce0fabe29a5d5:/bootrom/bootrom.c diff --git a/bootrom/bootrom.c b/bootrom/bootrom.c index c8c695cc..f98c1108 100644 --- a/bootrom/bootrom.c +++ b/bootrom/bootrom.c @@ -1,7 +1,7 @@ #include struct common_area common_area __attribute__((section(".commonarea"))); -unsigned int start_addr, end_addr, bootrom_unlocked; +unsigned int start_addr, end_addr, bootrom_unlocked; extern char _bootrom_start, _bootrom_end, _flash_start, _flash_end; static void ConfigClocks(void) @@ -10,53 +10,57 @@ static void ConfigClocks(void) // slow clock runs at 32Khz typical regardless of crystal // enable system clock and USB clock - PMC_SYS_CLK_ENABLE = PMC_SYS_CLK_PROCESSOR_CLK | PMC_SYS_CLK_UDP_CLK; + AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_PCK | AT91C_PMC_UDP; // enable the clock to the following peripherals - PMC_PERIPHERAL_CLK_ENABLE = - (1<PMC_PCER = + (1<PMC_MOR = + PMC_MAIN_OSC_ENABLE | + PMC_MAIN_OSC_STARTUP_DELAY(0x50); // wait for main oscillator to stabilize - while ( !(PMC_INTERRUPT_STATUS & PMC_MAIN_OSCILLATOR_STABILIZED) ) + while ( !(AT91C_BASE_PMC->PMC_SR & PMC_MAIN_OSC_STABILIZED) ) ; // minimum PLL clock frequency is 80 MHz in range 00 (96 here so okay) // frequency is crystal * multiplier / divisor = 16Mhz * 12 / 2 = 96Mhz - PMC_PLL = PMC_PLL_DIVISOR(2) | PMC_PLL_COUNT_BEFORE_LOCK(0x50) | - PMC_PLL_FREQUENCY_RANGE(0) | PMC_PLL_MULTIPLIER(12) | - PMC_PLL_USB_DIVISOR(1); + AT91C_BASE_PMC->PMC_PLLR = + PMC_PLL_DIVISOR(2) | + PMC_PLL_COUNT_BEFORE_LOCK(0x50) | + PMC_PLL_FREQUENCY_RANGE(0) | + PMC_PLL_MULTIPLIER(12) | + PMC_PLL_USB_DIVISOR(1); // wait for PLL to lock - while ( !(PMC_INTERRUPT_STATUS & PMC_MAIN_OSCILLATOR_PLL_LOCK) ) + while ( !(AT91C_BASE_PMC->PMC_SR & PMC_MAIN_OSC_PLL_LOCK) ) ; // we want a master clock (MCK) to be PLL clock / 2 = 96Mhz / 2 = 48Mhz // as per datasheet, this register must be programmed in two operations // when changing to PLL, program the prescaler first then the source - PMC_MASTER_CLK = PMC_CLK_PRESCALE_DIV_2; + AT91C_BASE_PMC->PMC_MCKR = PMC_CLK_PRESCALE_DIV_2; // wait for main clock ready signal - while ( !(PMC_INTERRUPT_STATUS & PMC_MAIN_OSCILLATOR_MCK_READY) ) + while ( !(AT91C_BASE_PMC->PMC_SR & PMC_MAIN_OSC_MCK_READY) ) ; // set the source to PLL - PMC_MASTER_CLK = PMC_CLK_SELECTION_PLL_CLOCK | PMC_CLK_PRESCALE_DIV_2; + AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_CSS_PLL_CLK | PMC_CLK_PRESCALE_DIV_2; // wait for main clock ready signal - while ( !(PMC_INTERRUPT_STATUS & PMC_MAIN_OSCILLATOR_MCK_READY) ) + while ( !(AT91C_BASE_PMC->PMC_SR & PMC_MAIN_OSC_MCK_READY) ) ; } @@ -79,19 +83,19 @@ void UsbPacketReceived(BYTE *packet, int len) case CMD_DEVICE_INFO: dont_ack = 1; c->cmd = CMD_DEVICE_INFO; - c->ext1 = DEVICE_INFO_FLAG_BOOTROM_PRESENT | DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM | + c->arg[0] = DEVICE_INFO_FLAG_BOOTROM_PRESENT | DEVICE_INFO_FLAG_CURRENT_MODE_BOOTROM | DEVICE_INFO_FLAG_UNDERSTANDS_START_FLASH; - if(common_area.flags.osimage_present) c->ext1 |= DEVICE_INFO_FLAG_OSIMAGE_PRESENT; + if(common_area.flags.osimage_present) c->arg[0] |= DEVICE_INFO_FLAG_OSIMAGE_PRESENT; UsbSendPacket(packet, len); break; case CMD_SETUP_WRITE: /* The temporary write buffer of the embedded flash controller is mapped to the - * whole memory region, only the last 8 bits are decoded. + * whole memory region, only the last 8 bits are decoded. */ p = (volatile DWORD *)&_flash_start; for(i = 0; i < 12; i++) { - p[i+c->ext1] = c->d.asDwords[i]; + p[i+c->arg[0]] = c->d.asDwords[i]; } break; @@ -102,39 +106,39 @@ void UsbPacketReceived(BYTE *packet, int len) } /* Check that the address that we are supposed to write to is within our allowed region */ - if( ((c->ext1+FLASH_PAGE_SIZE_BYTES-1) >= end_addr) || (c->ext1 < start_addr) ) { + if( ((c->arg[0]+AT91C_IFLASH_PAGE_SIZE-1) >= end_addr) || (c->arg[0] < start_addr) ) { /* Disallow write */ dont_ack = 1; c->cmd = CMD_NACK; UsbSendPacket(packet, len); } else { /* Translate address to flash page and do flash, update here for the 512k part */ - MC_FLASH_COMMAND = MC_FLASH_COMMAND_KEY | - MC_FLASH_COMMAND_PAGEN((c->ext1-(int)&_flash_start)/FLASH_PAGE_SIZE_BYTES) | - FCMD_WRITE_PAGE; + AT91C_BASE_EFC0->EFC_FCR = MC_FLASH_COMMAND_KEY | + MC_FLASH_COMMAND_PAGEN((c->arg[0]-(int)&_flash_start)/AT91C_IFLASH_PAGE_SIZE) | + AT91C_MC_FCMD_START_PROG; } - while(!(MC_FLASH_STATUS & MC_FLASH_STATUS_READY)) + while(!(AT91C_BASE_EFC0->EFC_FSR & MC_FLASH_STATUS_READY)) ; break; case CMD_HARDWARE_RESET: USB_D_PLUS_PULLUP_OFF(); - RSTC_CONTROL = RST_CONTROL_KEY | RST_CONTROL_PROCESSOR_RESET; + AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST; break; - + case CMD_START_FLASH: - if(c->ext3 == START_FLASH_MAGIC) bootrom_unlocked = 1; + if(c->arg[2] == START_FLASH_MAGIC) bootrom_unlocked = 1; else bootrom_unlocked = 0; { int prot_start = (int)&_bootrom_start; int prot_end = (int)&_bootrom_end; int allow_start = (int)&_flash_start; int allow_end = (int)&_flash_end; - int cmd_start = c->ext1; - int cmd_end = c->ext2; - + int cmd_start = c->arg[0]; + int cmd_end = c->arg[1]; + /* Only allow command if the bootrom is unlocked, or the parameters are outside of the protected - * bootrom area. In any case they must be within the flash area. + * bootrom area. In any case they must be within the flash area. */ if( (bootrom_unlocked || ((cmd_start >= prot_end) || (cmd_end < prot_start))) && (cmd_start >= allow_start) && (cmd_end <= allow_end) ) { @@ -148,7 +152,7 @@ void UsbPacketReceived(BYTE *packet, int len) } } break; - + default: Fatal(); break; @@ -165,18 +169,18 @@ static void flash_mode(int externally_entered) start_addr = 0; end_addr = 0; bootrom_unlocked = 0; - + UsbStart(); for(;;) { WDT_HIT(); - + UsbPoll(TRUE); - + if(!externally_entered && !BUTTON_PRESS()) { /* Perform a reset to leave flash mode */ USB_D_PLUS_PULLUP_OFF(); LED_B_ON(); - RSTC_CONTROL = RST_CONTROL_KEY | RST_CONTROL_PROCESSOR_RESET; + AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST; for(;;); } if(externally_entered && BUTTON_PRESS()) { @@ -195,65 +199,71 @@ void BootROM(void) // Kill all the pullups, especially the one on USB D+; leave them for // the unused pins, though. - PIO_NO_PULL_UP_ENABLE = (1 << GPIO_USB_PU) | - (1 << GPIO_LED_A) | - (1 << GPIO_LED_B) | - (1 << GPIO_LED_C) | - (1 << GPIO_LED_D) | - (1 << GPIO_FPGA_DIN) | - (1 << GPIO_FPGA_DOUT) | - (1 << GPIO_FPGA_CCLK) | - (1 << GPIO_FPGA_NINIT) | - (1 << GPIO_FPGA_NPROGRAM) | - (1 << GPIO_FPGA_DONE) | - (1 << GPIO_MUXSEL_HIPKD) | - (1 << GPIO_MUXSEL_HIRAW) | - (1 << GPIO_MUXSEL_LOPKD) | - (1 << GPIO_MUXSEL_LORAW) | - (1 << GPIO_RELAY) | - (1 << GPIO_NVDD_ON); - // (and add GPIO_FPGA_ON) + AT91C_BASE_PIOA->PIO_PPUDR = + GPIO_USB_PU | + GPIO_LED_A | + GPIO_LED_B | + GPIO_LED_C | + GPIO_LED_D | + GPIO_FPGA_DIN | + GPIO_FPGA_DOUT | + GPIO_FPGA_CCLK | + GPIO_FPGA_NINIT | + GPIO_FPGA_NPROGRAM | + GPIO_FPGA_DONE | + GPIO_MUXSEL_HIPKD | + GPIO_MUXSEL_HIRAW | + GPIO_MUXSEL_LOPKD | + GPIO_MUXSEL_LORAW | + GPIO_RELAY | + GPIO_NVDD_ON; + // (and add GPIO_FPGA_ON) // These pins are outputs - PIO_OUTPUT_ENABLE = (1 << GPIO_LED_A) | - (1 << GPIO_LED_B) | - (1 << GPIO_LED_C) | - (1 << GPIO_LED_D) | - (1 << GPIO_RELAY) | - (1 << GPIO_NVDD_ON); + AT91C_BASE_PIOA->PIO_OER = + GPIO_LED_A | + GPIO_LED_B | + GPIO_LED_C | + GPIO_LED_D | + GPIO_RELAY | + GPIO_NVDD_ON; // PIO controls the following pins - PIO_ENABLE = (1 << GPIO_USB_PU) | - (1 << GPIO_LED_A) | - (1 << GPIO_LED_B) | - (1 << GPIO_LED_C) | - (1 << GPIO_LED_D); + AT91C_BASE_PIOA->PIO_PER = + GPIO_USB_PU | + GPIO_LED_A | + GPIO_LED_B | + GPIO_LED_C | + GPIO_LED_D; USB_D_PLUS_PULLUP_OFF(); LED_D_OFF(); LED_C_ON(); LED_B_OFF(); LED_A_OFF(); - + // if 512K FLASH part - TODO make some defines :) - if ((DBGU_CIDR | 0xf00) == 0xa00) { - MC_FLASH_MODE0 = MC_FLASH_MODE_FLASH_WAIT_STATES(1) | - MC_FLASH_MODE_MASTER_CLK_IN_MHZ(0x48); - MC_FLASH_MODE1 = MC_FLASH_MODE_FLASH_WAIT_STATES(1) | - MC_FLASH_MODE_MASTER_CLK_IN_MHZ(0x48); + if ((AT91C_BASE_DBGU->DBGU_CIDR | 0xf00) == 0xa00) { + AT91C_BASE_EFC0->EFC_FMR = + MC_FLASH_MODE_FLASH_WAIT_STATES(1) | + MC_FLASH_MODE_MASTER_CLK_IN_MHZ(0x48); + AT91C_BASE_EFC1->EFC_FMR = + MC_FLASH_MODE_FLASH_WAIT_STATES(1) | + MC_FLASH_MODE_MASTER_CLK_IN_MHZ(0x48); } else { - MC_FLASH_MODE0 = MC_FLASH_MODE_FLASH_WAIT_STATES(0) | - MC_FLASH_MODE_MASTER_CLK_IN_MHZ(48); + AT91C_BASE_EFC0->EFC_FMR = + MC_FLASH_MODE_FLASH_WAIT_STATES(0) | + MC_FLASH_MODE_MASTER_CLK_IN_MHZ(48); } - + // Initialize all system clocks ConfigClocks(); - + LED_A_ON(); - + int common_area_present = 0; - switch(RSTC_STATUS & RST_STATUS_TYPE_MASK) { - case RST_STATUS_TYPE_WATCHDOG: - case RST_STATUS_TYPE_SOFTWARE: - case RST_STATUS_TYPE_USER: + switch(AT91C_BASE_RSTC->RSTC_RSR & AT91C_RSTC_RSTTYP) { + case AT91C_RSTC_RSTTYP_WATCHDOG: + case AT91C_RSTC_RSTTYP_SOFTWARE: + case AT91C_RSTC_RSTTYP_USER: /* In these cases the common_area in RAM should be ok, retain it if it's there */ if(common_area.magic == COMMON_AREA_MAGIC && common_area.version == 1) { common_area_present = 1; @@ -262,7 +272,7 @@ void BootROM(void) default: /* Otherwise, initialize it from scratch */ break; } - + if(!common_area_present){ /* Common area not ok, initialize it */ int i; for(i=0; i