diff options
Diffstat (limited to 'target/linux/etrax-2.6/image/e100boot/src/cbl/src/common_init.c')
| -rw-r--r-- | target/linux/etrax-2.6/image/e100boot/src/cbl/src/common_init.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/target/linux/etrax-2.6/image/e100boot/src/cbl/src/common_init.c b/target/linux/etrax-2.6/image/e100boot/src/cbl/src/common_init.c deleted file mode 100644 index 8104a4df3f..0000000000 --- a/target/linux/etrax-2.6/image/e100boot/src/cbl/src/common_init.c +++ /dev/null @@ -1,209 +0,0 @@ -/***************************************************************************** -*! -*! FILE NAME : common_init.c -*! -*! DESCRIPTION: This piece of code is loaded at bootstrap and is put in the -*! cache at 0x380000F0. Depending of how R_BUS_STATUS<2:1> is -*! set different kinds of bootstrap is performed. -*! -*! 00 - Normal boot. No bootstrap is performed and this code -*! is never loaded. -*! 01 - Serial boot. 784 bytes is loaded and execution starts -*! at 0x380000F0. -*! 11 - Parallel boot. 784 bytes is loaded and execution starts -*! at 0x380000F0. -*! 10 - Network boot. 1484 bytes is loaded and execution start -*! at 0x380000F4. -*! -*! --------------------------------------------------------------------------- -*! HISTORY -*! -*! DATE NAME CHANGES -*! ---- ---- ------- -*! 980326 Ronny Ranerup Initial version -*! Sep 20 1999 Jonas Dellenvall Added port3 debug support -*! 20020206 ronny Yeah, and I removed it again... -*! -*! --------------------------------------------------------------------------- -*! (C) Copyright 1998-2002, Axis Communications AB, LUND, SWEDEN -*!***************************************************************************/ - -/* - - Misc notes: - - It is very important to keep this file short. This and the boot - interface specific parts must fit into the first boot packet. - -*/ - -/****************** INCLUDE FILES SECTION ***********************************/ - -#include "hwregs.h" -#include "e100boot.h" - -/****************** CONSTANT AND MACRO SECTION ******************************/ - -/****************** TYPE DEFINITION SECTION *********************************/ - -/****************** LOCAL FUNCTION DECLARATION SECTION **********************/ - -static int timeout(void); - -/****************** GLOBAL VARIABLE DECLARATION SECTION *********************/ - -udword nbr_read; /* How many bytes has been read from current file */ -byte interface; /* Which I/O interface is the current one */ -byte set_dest; /* Have we set the destination address in tx_header */ -udword last_timeout; - -struct packet_header_T tx_header; -dma_descr_T tx_descr; /* For packet header */ -dma_descr_T tx_descr2; /* packet data */ - -struct packet_header_T rx_header; -dma_descr_T rx_descr; /* For packet header */ -dma_descr_T rx_descr2; /* packet data */ - -udword seq; /* Sequence number of next wanted packet */ -byte serial_up; - -/****************** LOCAL VARIABLE DECLARATION SECTION **********************/ - -/****************** FUNCTION DEFINITION SECTION *****************************/ - -void -crt1(void) -{ - /* Do this only once so we don't reset the timers and destroy the 32 - bit timer-register used as random number generator */ - - REG_SET__R_TIMER_CTRL( - timerdiv1, 0, - timerdiv0, 0, - presc_timer1, normal, - i1, clr, - tm1, run, - clksel1, cascade0, - presc_ext, prescale, - i0, clr, - tm0, run, - clksel0, c9600Hz); - - REG_SET__R_TIMER_CTRL( - timerdiv1, 0, - timerdiv0, 0, - presc_timer1, normal, - i1, nop, - tm1, run, - clksel1, cascade0, - presc_ext, prescale, - i0, nop, - tm0, run, - clksel0, c9600Hz); - - start(); -} - -void -start(void) -{ -#if USE_LEDS - REG_SET__R_PORT_PA_DIR( - dir7, output, - dir6, output, - dir5, output, - dir4, output, - dir3, output, - dir2, output, - dir1, output, - dir0, input); /* not for prodtest */ - - REG_SET__R_PORT_PA_DATA(data_out, 0); - - REG_SET__R_PORT_PB_DIR( - dir7, output, - dir6, output, - dir5, output, - dir4, output, - dir3, output, - dir2, output, - dir1, output, - dir0, output); - - REG_SET__R_PORT_PB_DATA(data_out, 0xff); -#endif - - /* We must initialize all (global) variables here, since the .data - and .bss area are used before they are loaded. */ - - //serial_up = FALSE; - nbr_read = 0; - - /* Get a random value to use as id. */ - tx_header.id = htonl(REG_RD(R_TIMER_DATA)); - - /* timer01 is used as timer. */ - last_timeout = REG_GET(R_TIMER01_DATA, count); - - interface = REG_GET(R_BUS_STATUS, boot) - 1; /* 0,1,2 */ - rx_descr2.status = 0; - - /* Initialize the boot interface */ - init_interface(); - send_ack(); /* Ack the first bootpacket, i.e. this code. seq 0. */ - - while (1) { - if (read_data()) { - if (nbr_read >= (udword)bytes_to_read) { - break; - } - else if (interface == NETWORK) { - REG_SET(R_DMA_CH1_CMD, cmd, start); - } - } - } - -#if USE_LEDS - REG_SET(R_PORT_PA_DATA, data_out, 0x55); -#endif - - level2_boot(); -} - -int -read_data(void) -{ - if (handle_read()) { - return TRUE; - } - - if (timeout()) { - send_ack(); - } - - return FALSE; -} - -int -timeout(void) -{ - volatile int now = REG_GET(R_TIMER01_DATA, count); - int elapsed; - int wait_time = 9600; - - elapsed = last_timeout - now; - - if (elapsed < 0) { - elapsed = -elapsed; - } - - if (elapsed > wait_time) { - last_timeout = now; - return TRUE; - } - - return FALSE; -} - -/****************** END OF FILE common_init.c *******************************/ |