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Diffstat (limited to 'c/src/lib/libbsp/powerpc/mvme3100/startup/bspstart.c')
-rw-r--r--c/src/lib/libbsp/powerpc/mvme3100/startup/bspstart.c440
1 files changed, 0 insertions, 440 deletions
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/startup/bspstart.c b/c/src/lib/libbsp/powerpc/mvme3100/startup/bspstart.c
deleted file mode 100644
index 27b483332c..0000000000
--- a/c/src/lib/libbsp/powerpc/mvme3100/startup/bspstart.c
+++ /dev/null
@@ -1,440 +0,0 @@
-/*
- * This routine does the bulk of the system initialization.
- */
-
-/*
- * COPYRIGHT (c) 1989-1998.
- * 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 for mvme3100 by T. Straumann
- */
-
-#include <string.h>
-#include <stdlib.h>
-#include <inttypes.h>
-
-#include <rtems.h>
-#include <bsp.h>
-#include <bsp/bootcard.h>
-#include <rtems/bspIo.h>
-#include <rtems/counter.h>
-#include <rtems/sysinit.h>
-#include <libcpu/spr.h>
-#include <libcpu/io.h>
-#include <libcpu/e500_mmu.h>
-#include <bsp/uart.h>
-#include <bsp/irq.h>
-#include <bsp/pci.h>
-#include <bsp/vpd.h>
-#include <libcpu/cpuIdent.h>
-#include <bsp/vectors.h>
-#include <bsp/VME.h>
-#include <rtems/powerpc/powerpc.h>
-
-#define SHOW_MORE_INIT_SETTINGS
-#undef DEBUG
-
-#define NumberOf(arr) (sizeof(arr)/sizeof(arr[0]))
-
-#ifdef DEBUG
-#define STATIC
-#else
-#define STATIC static
-#endif
-
-extern unsigned long __rtems_end[];
-extern unsigned ppc_exc_lock_std, ppc_exc_gpr3_std;
-
-/*
- * Copy Additional boot param passed by boot loader
- */
-#define CMDLINE_BUF_SIZE 2048
-
-static char cmdline_buf[CMDLINE_BUF_SIZE] = {0};
-char *BSP_commandline_string = cmdline_buf;
-
-/*
- * Vital Board data Start using DATA RESIDUAL
- */
-uint32_t bsp_clicks_per_usec = 0;
-/*
- * Total memory using RESIDUAL DATA
- */
-unsigned int BSP_mem_size = 0;
-/*
- * PCI Bus Frequency
- */
-unsigned int BSP_pci_bus_frequency = 0xdeadbeef;
-/*
- * PPC Bus Frequency
- */
-unsigned int BSP_bus_frequency = 0;
-/*
- * processor clock frequency
- */
-unsigned int BSP_processor_frequency = 0;
-/*
- * Time base divisior (how many tick for 1 second).
- */
-unsigned int BSP_time_base_divisor = 8000; /* if external RTC clock unused (HID0) */
-
-/* Board identification string */
-char BSP_productIdent[20] = {0};
-char BSP_serialNumber[20] = {0};
-
-/* VPD appends an extra char -- what for ? */
-char BSP_enetAddr0[7] = {0};
-char BSP_enetAddr1[7] = {0};
-char BSP_enetAddr2[7] = {0};
-
-static void
-prether(char *b, int idx)
-{
-int i;
- printk("Ethernet %i %02X", idx, *b++);
- for ( i=0; i<5; i++ )
- printk(":%02X",*b++);
- printk("\n");
-}
-
-BSP_output_char_function_type BSP_output_char = BSP_output_char_via_serial;
-BSP_polling_getchar_function_type BSP_poll_char = NULL;
-
-char *rtems_progname;
-
-/*
- * Use the shared implementations of the following routines
- */
-char *save_boot_params(
- void *r3,
- void *r4,
- void *r5,
- char *cmdline_start,
- char *cmdline_end
-)
-{
-
- strncpy(cmdline_buf, cmdline_start, CMDLINE_BUF_SIZE);
- cmdline_buf[CMDLINE_BUF_SIZE - 1] ='\0';
- return cmdline_buf;
-}
-
-#define CS_CONFIG_CS_EN (1<<31)
-#define CS_BNDS_SA(x) ((((uint32_t)(x))>>(31-15)) & 0xff)
-#define CS_BNDS_EA(x) ((((uint32_t)(x))>>(31-31)) & 0xff)
-
-static inline uint32_t
-_ccsr_rd32(uint32_t off)
-{
- return in_be32( (volatile uint32_t *)(BSP_8540_CCSR_BASE + off) );
-}
-
-static inline void
-_ccsr_wr32(uint32_t off, uint32_t val)
-{
- out_be32( (volatile uint32_t *)(BSP_8540_CCSR_BASE + off), val );
-}
-
-
-STATIC uint32_t
-BSP_get_mem_size( void )
-{
- int i;
- uint32_t cs_bnds, cs_config;
- uint32_t memsz=0;
- uint32_t v;
-
- for ( cs_bnds = 0x2000, cs_config=0x2080, i=0; i<4; i++, cs_bnds+=8, cs_config+=4 ) {
- if ( CS_CONFIG_CS_EN & _ccsr_rd32( cs_config ) ) {
- v = _ccsr_rd32( cs_bnds );
-
- memsz += CS_BNDS_EA(v) - CS_BNDS_SA(v) + 1;
- }
- }
- return memsz << 24;
-}
-
-STATIC void
-BSP_calc_freqs( void )
-{
- uint32_t porpllsr = _ccsr_rd32( 0xe0000 );
- unsigned plat_ratio = (porpllsr >> (31-30)) & 0x1f;
- unsigned e500_ratio = (porpllsr >> (31-15)) & 0x3f;
-
- switch ( plat_ratio ) {
- case 2: case 3: case 4: case 5: case 6:
- case 8: case 9: case 10: case 12: case 16:
- /* supported ratios */
- BSP_bus_frequency = BSP_pci_bus_frequency * plat_ratio;
- break;
-
- default:
- rtems_panic("Unknown PLL sys-clock ratio; something's wrong here");
- }
-
- switch ( e500_ratio ) {
- case 4: case 5: case 6: case 7:
- BSP_processor_frequency = (BSP_pci_bus_frequency * e500_ratio) >> 1;
- break;
-
- default:
- rtems_panic("Unknown PLL e500-clock ratio; something's wrong here");
- }
-
- printk("Core Complex Bus (CCB) Clock Freq: %10u Hz\n", BSP_bus_frequency);
- printk("CPU Clock Freq: %10u Hz\n", BSP_processor_frequency);
-}
-
-/*
- * bsp_start
- *
- * This routine does the bulk of the system initialization.
- */
-
-#include <libcpu/spr.h>
-
-SPR_RW(HID1)
-
-void bsp_start( void )
-{
- unsigned char *stack;
- uintptr_t intrStackStart;
- uintptr_t intrStackSize;
- char *chpt;
- int i;
- ppc_cpu_id_t myCpu;
- ppc_cpu_revision_t myCpuRevision;
- E500_tlb_va_cache_t *tlb;
-
-VpdBufRec vpdData [] = {
- { key: ProductIdent, instance: 0, buf: BSP_productIdent, buflen: sizeof(BSP_productIdent) - 1 },
- { key: SerialNumber, instance: 0, buf: BSP_serialNumber, buflen: sizeof(BSP_serialNumber) - 1 },
- { key: BusClockHz, instance: 0, buf: &BSP_pci_bus_frequency, buflen: sizeof(BSP_pci_bus_frequency) },
- { key: EthernetAddr, instance: 0, buf: BSP_enetAddr0, buflen: sizeof(BSP_enetAddr0) },
- { key: EthernetAddr, instance: 1, buf: BSP_enetAddr1, buflen: sizeof(BSP_enetAddr1) },
- { key: EthernetAddr, instance: 2, buf: BSP_enetAddr2, buflen: sizeof(BSP_enetAddr2) },
- VPD_END
-};
-
- /* Intersperse messages with actions to help locate problems */
- printk("-----------------------------------------\n");
-
- /*
- * 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...
- */
- myCpu = get_ppc_cpu_type();
- myCpuRevision = get_ppc_cpu_revision();
-
- printk("Welcome to %s\n", _RTEMS_version);
- printk("BSP: %s, CVS Release ($Name$)\n", "mvme3100");
-
- /*
- * the initial stack has aready been set to this value in start.S
- * so there is no need to set it in r1 again... It is just for info
- * so that It can be printed without accessing R1.
- */
- asm volatile("mr %0, 1":"=r"(stack));
-
- /* tag the bottom */
- *((uint32_t*)stack) = 0;
-
- /*
- * 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);
-
- printk("CPU 0x%x - rev 0x%x\n", myCpu, myCpuRevision);
-
-#ifdef SHOW_MORE_INIT_SETTINGS
- printk("Additionnal boot options are %s\n", BSP_commandline_string);
- printk("Initial system stack at %" PRIxPTR "\n", (uintptr_t) stack);
- printk("Software IRQ stack starts at %x with size %u\n", intrStackStart, intrStackSize);
-#endif
-
-#ifdef SHOW_MORE_INIT_SETTINGS
- printk("Going to start PCI buses scanning and initialization\n");
-#endif
-
- BSP_mem_size = BSP_get_mem_size();
-
- {
- /* memory-select errors were disabled in 'start.S';
- * motload has all TLBs mapping a possible larger area as
- * memory (not-guarded, caching-enabled) than actual physical
- * memory is available.
- * In case of speculative loads this may cause 'memory-select' errors
- * which seem to raise 'core_fault_in' (found no description in
- * the manual but I experienced this problem).
- * Such errors (if HID1[RFXE] is clear) may *stall* execution
- * leading to mysterious 'hangs'.
- *
- * Here we remove all mappings, re-enable memory-select
- * errors and make sure we enable HID1[RFXE] to avoid
- * stalls (since we don't implement handling individual
- * error-handling interrupts).
- */
-
- /* enable machine check for bad bus errors */
- _write_HID1( _read_HID1() | 0x20000 );
-
- rtems_e500_initlb();
-
- for ( i=0, tlb=rtems_e500_tlb_va_cache; i<NumberOf(rtems_e500_tlb_va_cache); i++, tlb++ ) {
- /* disable TLBs for caching-enabled, non-guarded areas
- * beyond physical memory
- */
- if ( tlb->att.v
- && 0xa != (tlb->att.wimge & 0xa)
- && (tlb->va.va_epn<<12) >= BSP_mem_size ) {
- rtems_e500_clrtlb( E500_SELTLB_1 | i );
- }
- }
-
- /* clear all pending memory errors */
- _ccsr_wr32(0x2e40, 0xffffffff);
- /* enable checking for memory-select errors */
- _ccsr_wr32(0x2e44, _ccsr_rd32(0x2e44) & ~1 );
- }
-
- BSP_vpdRetrieveFields( vpdData );
-
- printk("Board Type: %s (S/N %s)\n",
- BSP_productIdent[0] ? BSP_productIdent : "n/a",
- BSP_serialNumber[0] ? BSP_serialNumber : "n/a");
-
- printk("External (=PCI Bus) Clock Freq ");
- if ( 0xdeadbeef == BSP_pci_bus_frequency ) {
- BSP_pci_bus_frequency = 66666666;
- printk(" NOT FOUND in VPD; using %10u Hz\n",
- BSP_pci_bus_frequency);
- } else {
- printk(": %10u Hz\n",
- BSP_pci_bus_frequency);
- }
-
- /* Calculate CPU and CCB bus freqs */
- BSP_calc_freqs();
-
- pci_initialize();
-
- prether(BSP_enetAddr0, 0);
- prether(BSP_enetAddr1, 1);
- prether(BSP_enetAddr2, 2);
-
- /* need to tweak the motload setup */
- BSP_motload_pci_fixup();
-
-#ifdef SHOW_MORE_INIT_SETTINGS
- printk("Number of PCI buses found is : %d\n", pci_bus_count());
- {
- BSP_pciConfigDump_early();
- }
-#endif
-
- if ( (chpt = strstr(BSP_commandline_string,"MEMSZ=")) ) {
- char *endp;
- uint32_t sz;
- chpt+=6 /* strlen("MEMSZ=") */;
- sz = strtoul(chpt, &endp, 0);
- if ( endp != chpt )
- BSP_mem_size = sz;
- }
-
- printk("Memory: %10u bytes\n", BSP_mem_size);
-
- BSP_bus_frequency = 333333333;
- BSP_processor_frequency = 833333333;
- BSP_time_base_divisor = 8000; /* if external RTC clock unused (HID0) */
-
- /* clear hostbridge errors but leave MCP disabled -
- * PCI config space scanning code will trip otherwise :-(
- */
- _BSP_clear_hostbridge_errors(0 /* enableMCP */, 0/*quiet*/);
-
- 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);
-
- if (1) {
- int i;
- unsigned msr,tcr;
- asm volatile("mfmsr %0":"=r"(msr));
- asm volatile("mftcr %0":"=r"(tcr));
- printk("MSR is 0x%08x, TCR 0x%08x\n",msr,tcr);
- asm volatile("mttcr %0"::"r"(0));
- if (0) {
- asm volatile("mtmsr %0"::"r"(msr|0x8000));
- for (i=0; i<12; i++)
- BSP_enable_irq_at_pic(i);
- printk("IRQS enabled\n");
- }
- }
-
- if (0) {
- unsigned x;
- asm volatile("mfivpr %0":"=r"(x));
- printk("IVPR: 0x%08x\n",x);
- asm volatile("mfivor8 %0":"=r"(x));
- printk("IVOR8: 0x%08x\n",x);
- printk("0x%08x\n",*(unsigned *)0xc00);
- printk("0x%08x\n",*(unsigned *)0xc04);
- printk("0x%08x\n",*(unsigned *)0xc08);
- printk("0x%08x\n\n\n",*(unsigned *)0xc0c);
- if (0) {
- *(unsigned *)0xc08 = 0x4c000064;
- asm volatile("dcbf 0, %0; icbi 0, %0; sync; isync"::"r"(0xc00));
- }
-
- printk("0x%08x\n", ppc_exc_lock_std);
- printk("0x%08x\n", ppc_exc_gpr3_std);
-
- asm volatile("sc");
-
- printk("0x%08x\n", ppc_exc_lock_std);
- printk("0x%08x\n", ppc_exc_gpr3_std);
- }
-
- printk("-----------------------------------------\n");
-
-#ifdef SHOW_MORE_INIT_SETTINGS
- printk("Exit from bspstart\n");
-#endif
-}
-
-static void mvme3100_i2c_initialize(void)
-{
- BSP_i2c_initialize();
-}
-
-RTEMS_SYSINIT_ITEM(
- mvme3100_i2c_initialize,
- RTEMS_SYSINIT_BSP_PRE_DRIVERS,
- RTEMS_SYSINIT_ORDER_MIDDLE
-);
-
-RTEMS_SYSINIT_ITEM(
- BSP_vme_config,
- RTEMS_SYSINIT_BSP_PRE_DRIVERS,
- RTEMS_SYSINIT_ORDER_MIDDLE
-);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 01:57:36 +0000