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Diffstat (limited to 'c/src/lib/libbsp/powerpc/mvme5500/startup/bspstart.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme5500/startup/bspstart.c | 351 |
1 files changed, 0 insertions, 351 deletions
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/startup/bspstart.c b/c/src/lib/libbsp/powerpc/mvme5500/startup/bspstart.c deleted file mode 100644 index 279524eb8f..0000000000 --- a/c/src/lib/libbsp/powerpc/mvme5500/startup/bspstart.c +++ /dev/null @@ -1,351 +0,0 @@ -/* - * This routine does the bulk of the system initialization. - */ - -/* - * COPYRIGHT (c) 1989-2007. - * On-Line Applications Research Corporation (OAR). - * - * 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. - * - * Modified to support the MCP750. - * Modifications Copyright (C) 1999 Eric Valette. valette@crf.canon.fr - * - * Modified to support the Synergy VGM & Motorola PowerPC boards - * (C) by Till Straumann, <strauman@slac.stanford.edu>, 2002, 2004, 2005 - * - * Modified to support the MVME5500 board. - * Also, the settings of L1, L2, and L3 caches is not necessary here. - * (C) by Brookhaven National Lab., S. Kate Feng <feng1@bnl.gov>, 2003-2009 - */ - -#include <string.h> -#include <stdlib.h> -#include <ctype.h> - -#include <rtems/sysinit.h> -#include <rtems/system.h> -#include <rtems/powerpc/powerpc.h> - -#include <libcpu/spr.h> /* registers.h is included here */ -#include <bsp.h> -#include <bsp/bootcard.h> -#include <bsp/uart.h> -#include <bsp/pci.h> -#include <libcpu/bat.h> -#include <libcpu/pte121.h> -#include <libcpu/cpuIdent.h> -#include <bsp/vectors.h> -#include <bsp/VME.h> -#include <bsp/bspException.h> - -#include <rtems/bspIo.h> -#include <rtems/counter.h> - -/* -#define SHOW_MORE_INIT_SETTINGS -#define SHOW_LCR1_REGISTER -#define SHOW_LCR2_REGISTER -#define SHOW_LCR3_REGISTER -#define CONF_VPD -*/ - -extern uint32_t probeMemoryEnd(void); /* from shared/startup/probeMemoryEnd.c */ - -BSP_output_char_function_type BSP_output_char = BSP_output_char_via_serial; -BSP_polling_getchar_function_type BSP_poll_char = NULL; - -extern void _return_to_ppcbug(void); -extern unsigned long __rtems_end[]; -extern unsigned get_L1CR(void), get_L2CR(void), get_L3CR(void); -extern Triv121PgTbl BSP_pgtbl_setup(unsigned int *); -extern void BSP_pgtbl_activate(Triv121PgTbl); -extern int I2Cread_eeprom(unsigned char I2cBusAddr, uint32_t devA2A1A0, uint32_t AddrBytes, unsigned char *pBuff, uint32_t numBytes); -extern void BSP_vme_config(void); - -extern unsigned char ReadConfVPD_buff(int offset); - -uint32_t bsp_clicks_per_usec; - -typedef struct CmdLineRec_ { - unsigned long size; - char buf[0]; -} CmdLineRec, *CmdLine; - - -#define mtspr(reg, val) \ - __asm __volatile("mtspr %0,%1" : : "K"(reg), "r"(val)) - - -#define mfspr(reg) \ - ( { unsigned val; \ - __asm __volatile("mfspr %0,%1" : "=r"(val) : "K"(reg)); \ - val; } ) - -/* - * Copy Additional boot param passed by boot loader - */ -#define MAX_LOADER_ADD_PARM 80 -char loaderParam[MAX_LOADER_ADD_PARM]; - -/* - * Total memory using RESIDUAL DATA - */ -unsigned int BSP_mem_size; -/* - * PCI Bus Frequency - */ -unsigned int BSP_bus_frequency; -/* - * processor clock frequency - */ -unsigned int BSP_processor_frequency; -/* - * Time base divisior (how many tick for 1 second). - */ -unsigned int BSP_time_base_divisor; -static unsigned char ConfVPD_buff[200]; - -#define CMDLINE_BUF_SIZE 2048 - -static char cmdline_buf[CMDLINE_BUF_SIZE]; -char *BSP_commandline_string = cmdline_buf; - -/* NOTE: we cannot simply malloc the commandline string; - * save_boot_params() is called during a very early stage when - * libc/malloc etc. are not yet initialized! - * - * Here's what we do: - * - * initial layout setup by the loader (preload.S): - * - * 0..RTEMS...__rtems_end | cmdline ....... TOP - * - * After the save_boot_params() routine returns, the stack area will be - * set up (start.S): - * - * 0..RTEMS..__rtems_end | INIT_STACK | IRQ_STACK | ..... TOP - * - * initialize_executive_early() [called from boot_card()] - * will initialize the workspace: - * - * 0..RTEMS..__rtems_end | INIT_STACK | IRQ_STACK | ...... | workspace | TOP - * - * and later calls our bsp_predriver_hook() which ends up initializing - * libc which in turn initializes the heap - * - * 0..RTEMS..__rtems_end | INIT_STACK | IRQ_STACK | heap | workspace | TOP - * - * The idea here is to first move the commandline to the future 'heap' area - * from where it will be picked up by our bsp_predriver_hook(). - * bsp_predriver_hook() then moves it either to INIT_STACK or the workspace - * area using proper allocation, initializes libc and finally moves - * the data to the environment / malloced areas... - */ - -/* this routine is called early at shared/start/start.S - * and must be safe with a not properly aligned stack - */ -char * -save_boot_params( - void *r3, - void *r4, - void* r5, - char *cmdline_start, - char *cmdline_end -) -{ - int i=cmdline_end-cmdline_start; - - if ( i >= CMDLINE_BUF_SIZE ) - i = CMDLINE_BUF_SIZE-1; - else if ( i < 0 ) - i = 0; - - memmove(cmdline_buf, cmdline_start, i); - cmdline_buf[i]=0; - return cmdline_buf; -} - -void bsp_start( void ) -{ -#ifdef CONF_VPD - int i; -#endif -#ifdef SHOW_LCR1_REGISTER - unsigned l1cr; -#endif -#ifdef SHOW_LCR2_REGISTER - unsigned l2cr; -#endif -#ifdef SHOW_LCR3_REGISTER - unsigned l3cr; -#endif - uintptr_t intrStackStart; - uintptr_t intrStackSize; - Triv121PgTbl pt=0; - - /* Till Straumann: 4/2005 - * Need to map the system registers early, so we can printk... - * (otherwise we silently die) - */ - /* - * Kate Feng : PCI 0 domain memory space, want to leave room for the VME window - */ - setdbat(2, PCI0_MEM_BASE, PCI0_MEM_BASE, 0x10000000, IO_PAGE); - - /* Till Straumann: 2004 - * map the PCI 0, 1 Domain I/O space, GT64260B registers - * and the reserved area so that the size is the power of 2. - * 2009 : map the entire 256 M space - * - */ - setdbat(3,PCI0_IO_BASE, PCI0_IO_BASE, 0x10000000, IO_PAGE); - - - /* - * Get CPU identification dynamically. Note that the get_ppc_cpu_type() - * function store the result in global variables so that it can be used later. - */ - get_ppc_cpu_type(); - get_ppc_cpu_revision(); - -#ifdef SHOW_LCR1_REGISTER - l1cr = get_L1CR(); - printk("Initial L1CR value = %x\n", l1cr); -#endif - - /* - * Initialize the interrupt related settings. - */ - intrStackStart = (uintptr_t) __rtems_end; - intrStackSize = rtems_configuration_get_interrupt_stack_size(); - - /* - * Initialize default raw exception handlers. - */ - ppc_exc_initialize(intrStackStart, intrStackSize); - - /* - * Init MMU block address translation to enable hardware - * access - * More PCI1 memory mapping to be done after BSP_pgtbl_activate. - */ - printk("-----------------------------------------\n"); - printk("Welcome to %s on MVME5500-0163\n", _RTEMS_version ); - printk("-----------------------------------------\n"); - - BSP_mem_size = probeMemoryEnd(); - - /* TODO: calculate the BSP_bus_frequency using the REF_CLK bit - * of System Status register - */ - /* rtems_bsp_delay_in_bus_cycles are defined in registers.h */ - BSP_bus_frequency = 133333333; - BSP_processor_frequency = 1000000000; - /* P94 : 7455 clocks the TB/DECR at 1/4 of the system bus clock frequency */ - BSP_time_base_divisor = 4000; - - /* Maybe not setup yet becuase of the warning message */ - /* Allocate and set up the page table mappings - * This is only available on >604 CPUs. - * - * NOTE: This setup routine may modify the available memory - * size. It is essential to call it before - * calculating the workspace etc. - */ - pt = BSP_pgtbl_setup(&BSP_mem_size); - if (!pt) - printk("WARNING: unable to setup page tables.\n"); - - printk("Now BSP_mem_size = 0x%x\n",BSP_mem_size); - - /* P94 : 7455 TB/DECR is clocked by the system bus clock frequency */ - - bsp_clicks_per_usec = BSP_bus_frequency/(BSP_time_base_divisor * 1000); - rtems_counter_initialize_converter( - BSP_bus_frequency / (BSP_time_base_divisor / 1000) - ); - - /* - * Initalize RTEMS IRQ system - */ - BSP_rtems_irq_mng_init(0); - -#ifdef SHOW_LCR2_REGISTER - l2cr = get_L2CR(); - printk("Initial L2CR value = %x\n", l2cr); -#endif - -#ifdef SHOW_LCR3_REGISTER - /* L3CR needs DEC int. handler installed for bsp_delay()*/ - l3cr = get_L3CR(); - printk("Initial L3CR value = %x\n", l3cr); -#endif - - - /* Activate the page table mappings only after - * initializing interrupts because the irq_mng_init() - * routine needs to modify the text - */ - if (pt) { -#ifdef SHOW_MORE_INIT_SETTINGS - printk("Page table setup finished; will activate it NOW...\n"); -#endif - BSP_pgtbl_activate(pt); - } - /* Read Configuration Vital Product Data (VPD) */ - if ( I2Cread_eeprom(0xa8, 4,2, &ConfVPD_buff[0], 150)) - printk("I2Cread_eeprom() error \n"); - else { -#ifdef CONF_VPD - printk("\n"); - for (i=0; i<150; i++) { - printk("%2x ", ConfVPD_buff[i]); - if ((i % 20)==0 ) printk("\n"); - } - printk("\n"); -#endif - } - - /* - * PCI 1 domain memory space - */ - setdbat(1, PCI1_MEM_BASE, PCI1_MEM_BASE, 0x10000000, IO_PAGE); - - -#ifdef SHOW_MORE_INIT_SETTINGS - printk("Going to start PCI buses scanning and initialization\n"); -#endif - pci_initialize(); -#ifdef SHOW_MORE_INIT_SETTINGS - printk("Number of PCI buses found is : %d\n", pci_bus_count()); -#endif - - /* Install our own exception handler (needs PCI) */ - globalExceptHdl = BSP_exceptionHandler; - - /* clear hostbridge errors. MCP signal is not used on the MVME5500 - * PCI config space scanning code will trip otherwise :-( - */ - _BSP_clear_hostbridge_errors(0, 1 /*quiet*/); - -#ifdef SHOW_MORE_INIT_SETTINGS - printk("MSR %x \n", _read_MSR()); - printk("Exit from bspstart\n"); -#endif - -} - -unsigned char ReadConfVPD_buff(int offset) -{ - return(ConfVPD_buff[offset]); -} - -RTEMS_SYSINIT_ITEM( - BSP_vme_config, - RTEMS_SYSINIT_BSP_PRE_DRIVERS, - RTEMS_SYSINIT_ORDER_MIDDLE -); |