diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/mbx8xx/irq/irq_init.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mbx8xx/irq/irq_init.c | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/c/src/lib/libbsp/powerpc/mbx8xx/irq/irq_init.c b/c/src/lib/libbsp/powerpc/mbx8xx/irq/irq_init.c deleted file mode 100644 index 3024bcfd69..0000000000 --- a/c/src/lib/libbsp/powerpc/mbx8xx/irq/irq_init.c +++ /dev/null @@ -1,163 +0,0 @@ -/* irq_init.c - * - * This file contains the implementation of rtems initialization - * related to interrupt handling. - * - * CopyRight (C) 2001 valette@crf.canon.fr - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.com/license/LICENSE. - * - * $Id$ - */ -#include <bsp/irq.h> -#include <bsp.h> -#include <libcpu/raw_exception.h> -#include <bsp/8xx_immap.h> -#include <bsp/mbx.h> -#include <bsp/commproc.h> - -extern unsigned int external_exception_vector_prolog_code_size; -extern void external_exception_vector_prolog_code(void); -extern unsigned int decrementer_exception_vector_prolog_code_size; -extern void decrementer_exception_vector_prolog_code(void); - -volatile unsigned int ppc_cached_irq_mask; - -/* - * default on/off function - */ -static void nop_func1(void *unused){} -static void nop_func2(void){} - -/* - * default isOn function - */ -static int not_connected(void) {return 0;} -/* - * default possible isOn function - */ -static int connected(void) {return 1;} - -static rtems_irq_connect_data rtemsIrq[BSP_IRQ_NUMBER]; -static rtems_irq_global_settings initial_config; -static rtems_irq_connect_data defaultIrq = { - /* vectorIdex, hdl , handle , on , off , isOn */ - 0, nop_func1 , 0 , nop_func2 , nop_func2 , not_connected -}; -static rtems_irq_prio irqPrioTable[BSP_IRQ_NUMBER]={ - /* - * actual rpiorities for interrupt : - * 0 means that only current interrupt is masked - * 255 means all other interrupts are masked - */ - /* - * SIU interrupts. - */ - 7,7, 6,6, 5,5, 4,4, 3,3, 2,2, 1,1, 0,0, - /* - * CPM Interrupts - */ - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - /* - * Processor exceptions handled as interrupts - */ - 0 -}; - -void BSP_SIU_irq_init(void) -{ - /* - * In theory we should initialize two registers at least : - * SIMASK, SIEL. SIMASK is reset at 0 value meaning no interrupt. But - * we should take care that a monitor may have restoreed to another value. - * If someone find a reasonnable value for SIEL, AND THE NEED TO CHANGE IT - * please feel free to add it here. - */ - ((volatile immap_t *)IMAP_ADDR)->im_siu_conf.sc_simask = 0; - ((volatile immap_t *)IMAP_ADDR)->im_siu_conf.sc_sipend = 0xffff0000; - ppc_cached_irq_mask = 0; - ((volatile immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel = ((volatile immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel; -} - -/* - * Initialize CPM interrupt management - */ -void -BSP_CPM_irq_init(void) -{ - /* - * Initialize the CPM interrupt controller. - */ - ((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr = -#ifdef mpc860 - (CICR_SCD_SCC4 | CICR_SCC_SCC3 | CICR_SCB_SCC2 | CICR_SCA_SCC1) | -#else - (CICR_SCB_SCC2 | CICR_SCA_SCC1) | -#endif - ((BSP_CPM_INTERRUPT/2) << 13) | CICR_HP_MASK; - ((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr = 0; - - ((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr |= CICR_IEN; -} - -void BSP_rtems_irq_mng_init(unsigned cpuId) -{ - rtems_raw_except_connect_data vectorDesc; - int i; - - BSP_SIU_irq_init(); - BSP_CPM_irq_init(); - /* - * Initialize Rtems management interrupt table - */ - /* - * re-init the rtemsIrq table - */ - for (i = 0; i < BSP_IRQ_NUMBER; i++) { - rtemsIrq[i] = defaultIrq; - rtemsIrq[i].name = i; - } - /* - * Init initial Interrupt management config - */ - initial_config.irqNb = BSP_IRQ_NUMBER; - initial_config.defaultEntry = defaultIrq; - initial_config.irqHdlTbl = rtemsIrq; - initial_config.irqBase = BSP_LOWEST_OFFSET; - initial_config.irqPrioTbl = irqPrioTable; - - if (!BSP_rtems_irq_mngt_set(&initial_config)) { - /* - * put something here that will show the failure... - */ - BSP_panic("Unable to initialize RTEMS interrupt Management!!! System locked\n"); - } - - /* - * We must connect the raw irq handler for the two - * expected interrupt sources : decrementer and external interrupts. - */ - vectorDesc.exceptIndex = ASM_DEC_VECTOR; - vectorDesc.hdl.vector = ASM_DEC_VECTOR; - vectorDesc.hdl.raw_hdl = decrementer_exception_vector_prolog_code; - vectorDesc.hdl.raw_hdl_size = (unsigned) &decrementer_exception_vector_prolog_code_size; - vectorDesc.on = nop_func2; - vectorDesc.off = nop_func2; - vectorDesc.isOn = connected; - if (!ppc_set_exception (&vectorDesc)) { - BSP_panic("Unable to initialize RTEMS decrementer raw exception\n"); - } - vectorDesc.exceptIndex = ASM_EXT_VECTOR; - vectorDesc.hdl.vector = ASM_EXT_VECTOR; - vectorDesc.hdl.raw_hdl = external_exception_vector_prolog_code; - vectorDesc.hdl.raw_hdl_size = (unsigned) &external_exception_vector_prolog_code_size; - if (!ppc_set_exception (&vectorDesc)) { - BSP_panic("Unable to initialize RTEMS external raw exception\n"); - } -#ifdef TRACE_IRQ_INIT - printk("RTEMS IRQ management is now operationnal\n"); -#endif -} |