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Combination of coverhd.h cleanup and MVME23xx/MCP750 patch from Eric Valette

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<valette@crf.canon.fr> and Jay Kulpinski <jskulpin@eng01.gdds.com>.
This commit is contained in:
Joel Sherrill
2000-01-03 14:06:42 +00:00
parent d5c4681e57
commit 95273a610f
9 changed files with 216 additions and 32 deletions
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11
c/src/lib/libbsp/powerpc/shared/include/bsp.h
View File

@@ -32,19 +32,22 @@
/*
* Total memory using RESIDUAL DATA
*/
unsigned int BSP_mem_size;
extern unsigned int BSP_mem_size;
/*
* PCI Bus Frequency
*/
unsigned int BSP_bus_frequency;
extern unsigned int BSP_bus_frequency;
/*
* processor clock frequency
*/
unsigned int BSP_processor_frequency;
extern unsigned int BSP_processor_frequency;
/*
* Time base divisior (how many tick for 1 second).
*/
unsigned int BSP_time_base_divisor;
extern unsigned int BSP_time_base_divisor;
#define BSP_Convert_decrementer( _value ) \
((unsigned long long) ((((unsigned long long)BSP_time_base_divisor) * 1000000ULL) /((unsigned long long) BSP_bus_frequency)) * ((unsigned long long) (_value)))
extern rtems_configuration_table BSP_Configuration;
extern void BSP_panic(char *s);

9
c/src/lib/libbsp/powerpc/shared/irq/irq_init.c
View File

@@ -5,6 +5,9 @@
*
* CopyRight (C) 1999 valette@crf.canon.fr
*
* Enhanced by Jay Kulpinski <jskulpin@eng01.gdds.com>
* to make it valid for MVME2300 Motorola boards.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
@@ -249,10 +252,14 @@ void BSP_rtems_irq_mng_init(unsigned cpuId)
#ifdef TRACE_IRQ_INIT
printk("Going to initialize the PCI/ISA bridge IRQ related setting (VIA 82C586)\n");
#endif
if ( (currentBoard == MESQUITE) ) {
if ( currentBoard == MESQUITE ) {
VIA_isa_bridge_interrupts_setup();
known_cpi_isa_bridge = 1;
}
if ( currentBoard == MVME_2300 ) {
/* nothing to do for W83C553 bridge */
known_cpi_isa_bridge = 1;
}
if (!known_cpi_isa_bridge) {
printk("Please add code for PCI/ISA bridge init to libbsp/shared/irq/irq_init.c\n");
printk("If your card works correctly please add a test and set known_cpi_isa_bridge to true\n");

52
c/src/lib/libbsp/powerpc/shared/start/start.S
View File

@@ -49,6 +49,8 @@ __rtems_entry_point:
* r6: Start of command line string
* r7: End of command line string
*
* The Prep boot loader insure that the MMU is currently off...
*
*/
mr r31,r3 /* save parameters */
@@ -56,6 +58,11 @@ __rtems_entry_point:
mr r29,r5
mr r28,r6
mr r27,r7
/*
* Make sure we have nothing in BATS and TLB
*/
bl clear_bats
bl flush_tlbs
/*
* Use the first pair of BAT registers to map the 1st 64MB
* of RAM to KERNELBASE.
@@ -63,6 +70,7 @@ __rtems_entry_point:
lis r11,KERNELBASE@h
ori r11,r11,0x7fe /* set up BAT registers for 604 */
li r8,2 /* R/W access */
isync
mtspr DBAT0L,r8 /* N.B. 6xx (not 601) have valid */
mtspr DBAT0U,r11 /* bit in upper BAT register */
mtspr IBAT0L,r8
@@ -129,3 +137,47 @@ _return_to_ppcbug:
bl MMUon
mtctr r30
bctr
/*
* An undocumented "feature" of 604e requires that the v bit
* be cleared before changing BAT values.
*
* Also, newer IBM firmware does not clear bat3 and 4 so
* this makes sure it's done.
* -- Cort
*/
clear_bats:
li r20,0
mfspr r9,PVR
rlwinm r9,r9,16,16,31 /* r9 = 1 for 601, 4 for 604 */
cmpwi r9, 1
SYNC
beq 1f
mtspr DBAT0U,r20
mtspr DBAT0L,r20
mtspr DBAT1U,r20
mtspr DBAT1L,r20
mtspr DBAT2U,r20
mtspr DBAT2L,r20
mtspr DBAT3U,r20
mtspr DBAT3L,r20
1:
mtspr IBAT0U,r20
mtspr IBAT0L,r20
mtspr IBAT1U,r20
mtspr IBAT1L,r20
mtspr IBAT2U,r20
mtspr IBAT2L,r20
mtspr IBAT3U,r20
mtspr IBAT3L,r20
SYNC
blr
flush_tlbs:
lis r20, 0x1000
1: addic. r20, r20, -0x1000
tlbie r20
blt 1b
sync
blr

3
c/src/lib/libbsp/powerpc/shared/startup/bspstart.c
View File

@@ -233,8 +233,7 @@ void bsp_start( void )
* Must have acces to open pic PCI ACK registers
* provided by the RAVEN
*/
setdbat(3, 0xfeff0000, 0xfeff0000, 0x10000, IO_PAGE);
setdbat(3, 0xf0000000, 0xf0000000, 0x10000000, IO_PAGE);
select_console(CONSOLE_LOG);
/* We check that the keyboard is present and immediately

4
c/src/lib/libcpu/powerpc/mpc6xx/clock/c_clock.c
View File

@@ -143,7 +143,7 @@ rtems_device_driver Clock_initialize(
void *pargp
)
{
Clock_Decrementer_value = (BSP_bus_frequency/4000)*
Clock_Decrementer_value = (BSP_bus_frequency/BSP_time_base_divisor)*
(BSP_Configuration.microseconds_per_tick/1000);
if (!BSP_connect_clock_handler ()) {
@@ -185,7 +185,7 @@ rtems_device_driver Clock_control(
if (args == 0)
goto done;
Clock_Decrementer_value = (BSP_bus_frequency/4000)*
Clock_Decrementer_value = (BSP_bus_frequency/BSP_time_base_divisor)*
(BSP_Configuration.microseconds_per_tick/1000);
if (args->command == rtems_build_name('I', 'S', 'R', ' '))

85
c/src/lib/libcpu/powerpc/mpc6xx/exceptions/raw_exception.c
View File

@@ -11,6 +11,9 @@
* Copyright (C) 1999 Eric Valette (valette@crf.canon.fr)
* Canon Centre Recherche France.
*
* Enhanced by Jay Kulpinski <jskulpin@eng01.gdds.com>
* to support 603, 603e, 604, 604e exceptions
*
* The license and distribution terms for this file may be
* found in found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
@@ -50,12 +53,61 @@ int mpc750_vector_is_valid(rtems_vector vector)
}
}
int mpc603_vector_is_valid(rtems_vector vector)
{
switch(vector) {
case ASM_RESET_VECTOR: /* fall through */
case ASM_MACH_VECTOR:
case ASM_PROT_VECTOR:
case ASM_ISI_VECTOR:
case ASM_EXT_VECTOR:
case ASM_ALIGN_VECTOR:
case ASM_PROG_VECTOR:
case ASM_FLOAT_VECTOR:
case ASM_DEC_VECTOR:
case ASM_SYS_VECTOR:
case ASM_TRACE_VECTOR:
return 1;
case ASM_PERFMON_VECTOR:
return 0;
case ASM_IMISS_VECTOR: /* fall through */
case ASM_DLMISS_VECTOR:
case ASM_DSMISS_VECTOR:
case ASM_ADDR_VECTOR:
case ASM_SYSMGMT_VECTOR:
return 1;
case ASM_ITM_VECTOR:
return 0;
}
return 0;
}
int mpc604_vector_is_valid(rtems_vector vector)
{
/*
* Please fill this for MVME2307
*/
printk("Please complete libcpu/powerpc/XXX/raw_exception.c\n");
switch(vector) {
case ASM_RESET_VECTOR: /* fall through */
case ASM_MACH_VECTOR:
case ASM_PROT_VECTOR:
case ASM_ISI_VECTOR:
case ASM_EXT_VECTOR:
case ASM_ALIGN_VECTOR:
case ASM_PROG_VECTOR:
case ASM_FLOAT_VECTOR:
case ASM_DEC_VECTOR:
case ASM_SYS_VECTOR:
case ASM_TRACE_VECTOR:
case ASM_PERFMON_VECTOR:
return 1;
case ASM_IMISS_VECTOR: /* fall through */
case ASM_DLMISS_VECTOR:
case ASM_DSMISS_VECTOR:
return 0;
case ASM_ADDR_VECTOR: /* fall through */
case ASM_SYSMGMT_VECTOR:
return 1;
case ASM_ITM_VECTOR:
return 0;
}
return 0;
}
@@ -63,22 +115,31 @@ int mpc60x_set_exception (const rtems_raw_except_connect_data* except)
{
unsigned int level;
if (current_ppc_cpu == PPC_750) {
switch (current_ppc_cpu) {
case PPC_750:
if (!mpc750_vector_is_valid(except->exceptIndex)) {
return 0;
}
goto exception_ok;
}
if (current_ppc_cpu == PPC_604) {
break;
case PPC_604:
case PPC_604e:
case PPC_604r:
if (!mpc604_vector_is_valid(except->exceptIndex)) {
return 0;
}
goto exception_ok;
}
printk("Please complete libcpu/powerpc/XXX/raw_exception.c\n");
break;
case PPC_603:
case PPC_603e:
if (!mpc603_vector_is_valid(except->exceptIndex)) {
return 0;
}
break;
default:
printk("Please complete libcpu/powerpc/mpc6xx/raw_exception.c\n");
printk("current_ppc_cpu = %x\n", current_ppc_cpu);
return 0;
}
exception_ok:
/*
* Check if default handler is actually connected. If not issue an error.
* You must first get the current handler via mpc60x_get_current_exception

7
c/src/lib/libcpu/powerpc/mpc6xx/exceptions/raw_exception.h
View File

@@ -13,6 +13,9 @@
* Copyright (C) 1999 Eric Valette (valette@crf.canon.fr)
* Canon Centre Recherche France.
*
* Enhanced by Jay Kulpinski <jskulpin@eng01.gdds.com>
* to support 603, 603e, 604, 604e exceptions
*
* The license and distribution terms for this file may be
* found in found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
@@ -38,6 +41,10 @@
#define ASM_DEC_VECTOR 0x09
#define ASM_SYS_VECTOR 0x0C
#define ASM_TRACE_VECTOR 0x0D
#define ASM_PERFMON_VECTOR 0x0F
#define ASM_IMISS_VECTOR 0x10
#define ASM_DLMISS_VECTOR 0x11
#define ASM_DSMISS_VECTOR 0x12
#define ASM_ADDR_VECTOR 0x13
#define ASM_SYSMGMT_VECTOR 0x14
#define ASM_ITM_VECTOR 0x17

27
c/src/lib/libcpu/powerpc/mpc6xx/mmu/mmuAsm.S
View File

@@ -19,27 +19,48 @@
#include <rtems/score/targopts.h>
#include "asm.h"
/*
* Each setdbat routine start by invalidating the DBAT as some
* proc (604e) request the valid bit set to 0 before accepting
* to write in BAT
*/
.globl asm_setdbat1
.type asm_setdbat1,@function
asm_setdbat1:
mtspr DBAT1U, r3
li r20,0
SYNC
mtspr DBAT1U,r20
mtspr DBAT1L,r20
SYNC
mtspr DBAT1L, r4
mtspr DBAT1U, r3
SYNC
blr
.globl asm_setdbat2
.type asm_setdbat2,@function
asm_setdbat2:
mtspr DBAT2U, r3
li r20,0
SYNC
mtspr DBAT2U,r20
mtspr DBAT2L,r20
SYNC
mtspr DBAT2L, r4
mtspr DBAT2U, r3
SYNC
blr
.globl asm_setdbat3
.type asm_setdbat3,@function
asm_setdbat3:
mtspr DBAT3U, r3
li r20,0
SYNC
mtspr DBAT3U,r20
mtspr DBAT3L,r20
SYNC
mtspr DBAT3L, r4
mtspr DBAT3U, r3
SYNC
blr

34
c/src/lib/libcpu/powerpc/shared/cpu.h
View File

@@ -191,6 +191,40 @@ extern ppc_cpu_id_t get_ppc_cpu_type();
extern ppc_cpu_id_t current_ppc_cpu;
extern ppc_cpu_revision_t get_ppc_cpu_revision();
extern ppc_cpu_revision_t current_ppc_revision;
/*
* Routines to access the time base register
*/
static inline unsigned long long PPC_Get_timebase_register( void )
{
unsigned long tbr_low;
unsigned long tbr_high;
unsigned long tbr_high_old;
unsigned long long tbr;
do {
asm volatile( "mftbu %0" : "=r" (tbr_high_old));
asm volatile( "mftb %0" : "=r" (tbr_low));
asm volatile( "mftbu %0" : "=r" (tbr_high));
} while ( tbr_high_old != tbr_high );
tbr = tbr_high;
tbr <<= 32;
tbr |= tbr_low;
return tbr;
}
static inline void PPC_Set_timebase_register (unsigned long long tbr)
{
unsigned long tbr_low;
unsigned long tbr_high;
tbr_low = (tbr & 0xffffffff) ;
tbr_high = (tbr >> 32) & 0xffffffff;
asm volatile( "mtspr 284, %0" : : "r" (tbr_low));
asm volatile( "mtspr 285, %0" : : "r" (tbr_high));
}
#endif
#define _CPU_MSR_GET( _msr_value ) \