diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/csb337/startup/bspstart.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/csb337/startup/bspstart.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/c/src/lib/libbsp/arm/csb337/startup/bspstart.c b/c/src/lib/libbsp/arm/csb337/startup/bspstart.c deleted file mode 100644 index a47198598c..0000000000 --- a/c/src/lib/libbsp/arm/csb337/startup/bspstart.c +++ /dev/null @@ -1,158 +0,0 @@ -/* - * Cogent CSB337 - AT91RM9200 Startup Code - * - * Copyright (c) 2004 by Cogent Computer Systems - * Written by Jay Monkman <jtm@lopingdog.com> - * - * Modified by Joel Sherill - * from OAR Corporation and - * Fernando Nicodemos <fgnicodemos@terra.com.br> - * from NCB - Sistemas Embarcados Ltda. (Brazil) - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#include <bsp.h> -#include <bsp/irq-generic.h> -#include <at91rm9200.h> -#include <at91rm9200_pmc.h> -#include <at91rm9200_emac.h> -#include <at91rm9200_gpio.h> -#include <at91rm9200_usart.h> - -/* Function prototypes */ -static void fix_mac_addr(void); -void bsp_usart_init(void); - -/* - * bsp_start_default - BSP initialization function - * - * This function is called before RTEMS is initialized and used - * adjust the kernel's configuration. - * - * This function also configures the CPU's memory protection unit. - * - * RESTRICTIONS/LIMITATIONS: - * Since RTEMS is not configured, no RTEMS functions can be called. - */ -static void bsp_start_default( void ) -{ - /* disable interrupts */ - AIC_CTL_REG(AIC_IDCR) = 0xffffffff; - - /* - * Some versions of the bootloader have the MAC address - * reversed. This fixes it, if necessary. - */ - fix_mac_addr(); - - /* - * Init rtems PIO configuration for USARTs - */ - bsp_usart_init(); - - /* - * Init rtems interrupt management - */ - bsp_interrupt_initialize(); - -} /* bsp_start */ - -/* - * Some versions of the bootloader shipped with the CSB337 - * reverse the MAC address. This function tests for that, - * and fixes the MAC address. - */ -static void fix_mac_addr(void) -{ - uint8_t addr[6]; - - /* Read the MAC address */ - addr[0] = (EMAC_REG(EMAC_SA1L) >> 0) & 0xff; - addr[1] = (EMAC_REG(EMAC_SA1L) >> 8) & 0xff; - addr[2] = (EMAC_REG(EMAC_SA1L) >> 16) & 0xff; - addr[3] = (EMAC_REG(EMAC_SA1L) >> 24) & 0xff; - addr[4] = (EMAC_REG(EMAC_SA1H) >> 0) & 0xff; - addr[5] = (EMAC_REG(EMAC_SA1H) >> 8) & 0xff; - - /* Check which 3 bytes have Cogent's OUI */ - if ((addr[5] == 0x00) && (addr[4] == 0x23) && (addr[3] == 0x31)) { - EMAC_REG(EMAC_SA1L) = ((addr[5] << 0) | - (addr[4] << 8) | - (addr[3] << 16) | - (addr[2] << 24)); - - EMAC_REG(EMAC_SA1H) = ((addr[1] << 0) | - (addr[0] << 8)); - } -} - -/* - * - * NAME: bsp_usart_init - Function to setup the PIO in USART mode - * before startup - * - * DESCRIPTION: - * This function is called before usart driver is initialized and is - * used to setup the proper mode of PIO operation for USART. - * - * NOTES: - * The initialization could be done smarter by programming only the - * bits you need to program for each USART when the port is ENABLED. - * - */ -void bsp_usart_init(void) -{ - /* - * Configure shared pins for USARTs. - * Disables the PIO from controlling the corresponding pin. - */ - PIOA_REG(PIO_PDR) |= ( BIT5 | /* USART3 TXD3 */ - BIT6 | /* USART3 RXD3 */ - BIT17 | /* USART0 TXD0 */ - BIT18 | /* USART0 RXD0 */ - BIT22 | /* USART2 RXD2 */ - BIT23 ); /* USART2 TXD2 */ - - PIOB_REG(PIO_PDR) |= ( BIT20 | /* USART1 TXD1 */ - BIT21 ); /* USART1 RXD1 */ - - /**** PIO Controller A - Pins you want in mode B ****/ - PIOA_REG(PIO_BSR) |= ( BIT5 | /* USART3 TXD3 */ /* add */ - BIT6 ); /* USART3 RXD3 */ - PIOA_REG(PIO_ASR) &= ~( BIT5 | /* USART3 TXD3 */ - BIT6 ); /* USART3 RXD3 */ - - /**** PIO Controller A - Pins you want in mode A ****/ - PIOA_REG(PIO_ASR) |= ( BIT17 | /* USART0 TXD0 */ - BIT18 | /* USART0 RXD0 */ - BIT22 | /* USART2 RXD2 */ - BIT23 ); /* USART2 TXD2 */ - PIOA_REG(PIO_BSR) &= ~( BIT17 | /* USART0 TXD0 */ /* add */ - BIT18 | /* USART0 RXD0 */ - BIT22 | /* USART2 RXD2 */ - BIT23 ); /* USART2 TXD2 */ - - /**** PIO Controller B - Pins you want in mode A ****/ - PIOB_REG(PIO_ASR) |= ( BIT20 | /* USART1 TXD1 */ - BIT21 ); /* USART1 RXD1 */ - PIOB_REG(PIO_BSR) &= ~( BIT20 | /* USART1 TXD1 */ - BIT21 ); /* USART1 RXD1 */ - - /**** PIO Controller B - Pins you want in mode B ****/ - /**** none ****/ - - /* Enable the clock to the USARTs */ - PMC_REG(PMC_PCER) |= ( PMC_PCR_PID_US0 | /* USART 0 Peripheral Clock */ - PMC_PCR_PID_US1 | /* USART 1 Peripheral Clock */ - PMC_PCR_PID_US2 | /* USART 2 Peripheral Clock */ - PMC_PCR_PID_US3 ); /* USART 3 Peripheral Clock */ -} - -/* - * By making this a weak alias for bsp_start_default, a brave soul - * can override the actual bsp_start routine used. - */ -void bsp_start (void) __attribute__ ((weak, alias("bsp_start_default"))); |