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final fixes to copy BaS() to RAM again

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This should now avoid crashes when flashing BaS_gcc using FLASH_CF.PRG
from EmuTOS
This commit is contained in:
Markus Fröschle
2020-06-23 16:01:28 +02:00
parent 9203579324
commit 02c0dac968
3 changed files with 315 additions and 294 deletions
Download Patch File Download Diff File Expand all files Collapse all files

460
bas.lk.in
View File

@@ -19,234 +19,320 @@
MEMORY
{
bas_rom (ROMFLAGS) : ORIGIN = TARGET_ADDRESS, LENGTH = 0x00100000
/*
* target to copy BaS data segment to. 1M should be enough for now
*/
bas_ram (WX) : ORIGIN = SDRAM_START + SDRAM_SIZE - 0x00200000, LENGTH = 0x00100000
/*
* driver_ram is an uncached, reserved memory area for drivers (e.g. USB) that need this type of memory
*/
driver_ram (WX) : ORIGIN = SDRAM_START + SDRAM_SIZE - 0x00100000, LENGTH = 0x00100000
bas_rom (ROMFLAGS) : ORIGIN = TARGET_ADDRESS, LENGTH = 0x00100000
/*
* target to copy BaS code + data segment to. 1M should be enough for now
*/
bas_ram (WX) : ORIGIN = SDRAM_START + SDRAM_SIZE - 0x00200000, LENGTH = 0x00100000
/*
* driver_ram is an uncached, reserved memory area for drivers (e.g. USB) that need this type of memory
*/
driver_ram (WX) : ORIGIN = SDRAM_START + SDRAM_SIZE - 0x00100000, LENGTH = 0x00100000
}
SECTIONS
{
/* BaS in ROM */
.text :
{
OBJDIR/startcf.o(.text) /* this one is the entry point so it must be the first */
{
.driver_memory :
{
. = ALIGN(4);
driver_mem = .;
. = . + DRIVER_MEM_BUFFER_SIZE;
} > driver_ram
OBJDIR/sysinit.o(.text)
OBJDIR/fault_vectors.o(.text)
#ifdef MACHINE_FIREBEE
OBJDIR/init_fpga.o(.text)
#endif /* MACHINE_FIREBEE */
OBJDIR/wait.o(.text)
OBJDIR/exceptions.o(.text)
OBJDIR/setjmp.o(.text)
OBJDIR/driver_vec.o(.text)
OBJDIR/interrupts.o(.text)
OBJDIR/mmu.o(.text)
_driver_mem_buffer = driver_mem;
OBJDIR/BaS.o(.text)
OBJDIR/pci.o(.text)
. = ALIGN(16);
OBJDIR/pci_errata.o(.text)
OBJDIR/pci_wrappers.o(.text)
OBJDIR/usb.o(.text)
OBJDIR/driver_mem.o(.text)
OBJDIR/usb_hub.o(.text)
OBJDIR/usb_mouse.o(.text)
OBJDIR/usb_kbd.o(.text)
OBJDIR/ohci-hcd.o(.text)
OBJDIR/ehci-hcd.o(.text)
OBJDIR/wait.o(.text)
/* BaS in ROM */
.text :
{
OBJDIR/startcf.o(.text) /* this one is the entry point so it must be the first */
OBJDIR/nbuf.o(.text)
OBJDIR/net_timer.o(.text)
OBJDIR/queue.o(.text)
OBJDIR/nif.o(.text)
OBJDIR/fecbd.o(.text)
OBJDIR/fec.o(.text)
OBJDIR/am79c874.o(.text)
OBJDIR/bcm5222.o(.text)
OBJDIR/ip.o(.text)
OBJDIR/udp.o(text)
OBJDIR/bootp.o(text)
OBJDIR/tftp.o(text)
OBJDIR/arp.o(text)
OBJDIR/sysinit.o(.text)
OBJDIR/fault_vectors.o(.text)
OBJDIR/unicode.o(.text)
OBJDIR/mmc.o(.text)
OBJDIR/ff.o(.text)
OBJDIR/sd_card.o(.text)
OBJDIR/s19reader.o(.text)
OBJDIR/bas_printf.o(.text)
OBJDIR/bas_string.o(.text)
OBJDIR/conout.o(.text)
OBJDIR/ide.o(.text)
#if (FORMAT_ELF == 1)
OBJDIR/libgcc_helper.o(.text)
#endif
OBJDIR/cache.o(.text)
OBJDIR/dma.o(.text)
OBJDIR/MCD_dmaApi.o(.text)
OBJDIR/MCD_tasks.o(.text)
OBJDIR/MCD_tasksInit.o(.text)
OBJDIR/video.o(.text)
OBJDIR/videl.o(.text)
OBJDIR/fbmem.o(.text)
OBJDIR/fbmon.o(.text)
OBJDIR/fbmodedb.o(.text)
OBJDIR/fnt_st_8x16.o(.text)
OBJDIR/offscreen.o(.text)
OBJDIR/x86emu.o(.text)
OBJDIR/x86emu_util.o(.text)
OBJDIR/x86pcibios.o(.text)
OBJDIR/x86biosemu.o(.text)
OBJDIR/i2c-algo-bit.o(.text)
OBJDIR/radeon_base.o(.text)
OBJDIR/radeon_accel.o(.text)
OBJDIR/radeon_cursor.o(.text)
OBJDIR/radeon_monitor.o(.text)
OBJDIR/radeon_i2c.o(.text)
OBJDIR/xhdi_sd.o(.text)
OBJDIR/xhdi_interface.o(.text)
OBJDIR/xhdi_vec.o(.text)
#ifdef COMPILE_RAM
/*
* if we compile to RAM anyway, there is no need to copy anything
*/
. = ALIGN(4);
__BAS_DATA_START = .;
*(.data)
__BAS_DATA_END = .;
__BAS_BSS_START = .;
*(.bss)
__BAS_BSS_END = .;
#endif /* COMPILE_RAM */
#ifdef MACHINE_FIREBEE
OBJDIR/init_fpga.o(.text)
#endif /* MACHINE_FIREBEE */
OBJDIR/wait.o(.text)
OBJDIR/exceptions.o(.text)
OBJDIR/setjmp.o(.text)
OBJDIR/driver_vec.o(.text)
OBJDIR/interrupts.o(.text)
OBJDIR/mmu.o(.text)
OBJDIR/BaS.o(.text)
OBJDIR/pci.o(.text)
. = ALIGN(16);
OBJDIR/pci_errata.o(.text)
OBJDIR/pci_wrappers.o(.text)
OBJDIR/usb.o(.text)
OBJDIR/driver_mem.o(.text)
OBJDIR/usb_hub.o(.text)
OBJDIR/usb_mouse.o(.text)
OBJDIR/usb_kbd.o(.text)
OBJDIR/ohci-hcd.o(.text)
OBJDIR/ehci-hcd.o(.text)
OBJDIR/wait.o(.text)
OBJDIR/nbuf.o(.text)
OBJDIR/net_timer.o(.text)
OBJDIR/queue.o(.text)
OBJDIR/nif.o(.text)
OBJDIR/fecbd.o(.text)
OBJDIR/fec.o(.text)
OBJDIR/am79c874.o(.text)
OBJDIR/bcm5222.o(.text)
OBJDIR/ip.o(.text)
OBJDIR/udp.o(text)
OBJDIR/bootp.o(text)
OBJDIR/tftp.o(text)
OBJDIR/arp.o(text)
OBJDIR/unicode.o(.text)
OBJDIR/mmc.o(.text)
OBJDIR/ff.o(.text)
OBJDIR/sd_card.o(.text)
OBJDIR/s19reader.o(.text)
OBJDIR/bas_printf.o(.text)
OBJDIR/bas_string.o(.text)
OBJDIR/conout.o(.text)
OBJDIR/ide.o(.text)
#if (FORMAT_ELF == 1)
*(.eh_frame)
*(.rodata)
*(.rodata.*)
#endif
} > bas_rom
OBJDIR/libgcc_helper.o(.text)
#endif /* FORMAT_ELF */
OBJDIR/cache.o(.text)
OBJDIR/dma.o(.text)
OBJDIR/MCD_dmaApi.o(.text)
OBJDIR/MCD_tasks.o(.text)
OBJDIR/MCD_tasksInit.o(.text)
OBJDIR/video.o(.text)
OBJDIR/videl.o(.text)
OBJDIR/fbmem.o(.text)
OBJDIR/fbmon.o(.text)
OBJDIR/fbmodedb.o(.text)
OBJDIR/fnt_st_8x16.o(.text)
OBJDIR/offscreen.o(.text)
OBJDIR/x86emu.o(.text)
OBJDIR/x86emu_util.o(.text)
OBJDIR/x86pcibios.o(.text)
OBJDIR/x86biosemu.o(.text)
OBJDIR/i2c-algo-bit.o(.text)
OBJDIR/radeon_base.o(.text)
OBJDIR/radeon_accel.o(.text)
OBJDIR/radeon_cursor.o(.text)
OBJDIR/radeon_monitor.o(.text)
OBJDIR/radeon_i2c.o(.text)
OBJDIR/xhdi_sd.o(.text)
OBJDIR/xhdi_interface.o(.text)
OBJDIR/xhdi_vec.o(.text)
/*
* if we compile to RAM anyway, there is no need to copy anything
*/
. = ALIGN(4);
_BAS_DATA_START = .;
*(.data)
__BAS_DATA_END = .;
__BAS_BSS_START = .;
*(.bss)
__BAS_BSS_END = .;
#endif /* COMPILE_RAM */
} > bas_rom
#if (TARGET_ADDRESS == BOOTFLASH_BASE_ADDRESS)
/*
* put BaS .data and .bss segments to flash, but relocate it to RAM after initialize_hardware() ran
*/
.bas :
AT (ALIGN(ADDR(.text) + SIZEOF(.text), 4))
{
. = ALIGN(4); /* same alignment than AT() statement! */
__BAS_DATA_START = .;
*(.data)
__BAS_DATA_END = .;
__BAS_BSS_START = .;
*(.bss)
__BAS_BSS_END = .;
. = ALIGN(16);
} > bas_ram
/*
* put BaS .data and .bss segments to flash, but relocate it to RAM after initialize_hardware() ran
*/
_driver_mem_buffer = driver_mem;
.bas : AT (ALIGN(ADDR(.text) + SIZEOF(.text), 4))
{
_BAS_IN_RAM = .;
#ifdef MACHINE_FIREBEE
OBJDIR/init_fpga.o(.text)
#endif /* MACHINE_FIREBEE */
OBJDIR/wait.o(.text)
OBJDIR/exceptions.o(.text)
OBJDIR/setjmp.o(.text)
OBJDIR/driver_vec.o(.text)
OBJDIR/interrupts.o(.text)
OBJDIR/mmu.o(.text)
OBJDIR/BaS.o(.text)
OBJDIR/pci.o(.text)
. = ALIGN(16);
OBJDIR/pci_errata.o(.text)
OBJDIR/pci_wrappers.o(.text)
OBJDIR/usb.o(.text)
OBJDIR/driver_mem.o(.text)
OBJDIR/usb_hub.o(.text)
OBJDIR/usb_mouse.o(.text)
OBJDIR/usb_kbd.o(.text)
OBJDIR/ohci-hcd.o(.text)
OBJDIR/ehci-hcd.o(.text)
OBJDIR/wait.o(.text)
OBJDIR/nbuf.o(.text)
OBJDIR/net_timer.o(.text)
OBJDIR/queue.o(.text)
OBJDIR/nif.o(.text)
OBJDIR/fecbd.o(.text)
OBJDIR/fec.o(.text)
OBJDIR/am79c874.o(.text)
OBJDIR/bcm5222.o(.text)
OBJDIR/ip.o(.text)
OBJDIR/udp.o(text)
OBJDIR/bootp.o(text)
OBJDIR/tftp.o(text)
OBJDIR/arp.o(text)
OBJDIR/unicode.o(.text)
OBJDIR/mmc.o(.text)
OBJDIR/ff.o(.text)
OBJDIR/sd_card.o(.text)
OBJDIR/s19reader.o(.text)
OBJDIR/bas_printf.o(.text)
OBJDIR/bas_string.o(.text)
OBJDIR/conout.o(.text)
OBJDIR/ide.o(.text)
#if (FORMAT_ELF == 1)
OBJDIR/libgcc_helper.o(.text)
#endif
OBJDIR/cache.o(.text)
OBJDIR/dma.o(.text)
OBJDIR/MCD_dmaApi.o(.text)
OBJDIR/MCD_tasks.o(.text)
OBJDIR/MCD_tasksInit.o(.text)
.driver_memory :
{
. = ALIGN(4);
_driver_mem_buffer = .;
//. = . + DRIVER_MEM_BUFFER_SIZE;
} > driver_ram
OBJDIR/video.o(.text)
OBJDIR/videl.o(.text)
OBJDIR/fbmem.o(.text)
OBJDIR/fbmon.o(.text)
OBJDIR/fbmodedb.o(.text)
OBJDIR/fnt_st_8x16.o(.text)
OBJDIR/offscreen.o(.text)
/*
* Global memory map
*/
OBJDIR/x86emu.o(.text)
OBJDIR/x86emu_util.o(.text)
OBJDIR/x86pcibios.o(.text)
OBJDIR/x86biosemu.o(.text)
/* SDRAM Initialization */
___SDRAM = SDRAM_START;
___SDRAM_SIZE = SDRAM_SIZE;
_SDRAM_VECTOR_TABLE = ___SDRAM;
OBJDIR/i2c-algo-bit.o(.text)
/* ST-RAM */
__STRAM = ___SDRAM;
__STRAM_END = __TOS;
OBJDIR/radeon_base.o(.text)
OBJDIR/radeon_accel.o(.text)
OBJDIR/radeon_cursor.o(.text)
OBJDIR/radeon_monitor.o(.text)
OBJDIR/radeon_i2c.o(.text)
/* TOS */
__TOS = 0x00e00000;
OBJDIR/xhdi_sd.o(.text)
OBJDIR/xhdi_interface.o(.text)
OBJDIR/xhdi_vec.o(.text)
/* FastRAM */
__FASTRAM = 0x10000000;
__TARGET_ADDRESS = TARGET_ADDRESS;
. = ALIGN(4); /* same alignment than AT() statement! */
__BAS_DATA_START = .;
*(.data)
#if (FORMAT_ELF == 1)
*(.eh_frame)
*(.rodata)
*(.rodata.*)
#endif
__BAS_DATA_END = .;
__BAS_BSS_START = .;
*(.bss)
__BAS_BSS_END = .;
. = ALIGN(16);
} > bas_ram
#endif /* compile to RAM (copy after sysinit())
/*
* Global memory map
*/
/* SDRAM Initialization */
___SDRAM = SDRAM_START;
___SDRAM_SIZE = SDRAM_SIZE;
_SDRAM_VECTOR_TABLE = ___SDRAM;
/* ST-RAM */
__STRAM = ___SDRAM;
__STRAM_END = __TOS;
/* TOS */
__TOS = 0x00e00000;
/* FastRAM */
__FASTRAM = 0x10000000;
__TARGET_ADDRESS = TARGET_ADDRESS;
#if TARGET_ADDRESS == BOOTFLASH_BASE_ADDRESS
__FASTRAM_END = __BAS_IN_RAM;
__FASTRAM_END = __BAS_IN_RAM;
#else
__FASTRAM_END = TARGET_ADDRESS;
__FASTRAM_END = TARGET_ADDRESS;
#endif
__FASTRAM_SIZE = __FASTRAM_END - __FASTRAM;
__FASTRAM_SIZE = __FASTRAM_END - __FASTRAM;
/* Init CS0 (BootFLASH @ E000_0000 - E07F_FFFF 8Mbytes) */
___BOOT_FLASH = BOOTFLASH_BASE_ADDRESS;
___BOOT_FLASH_SIZE = BOOTFLASH_SIZE;
/* Init CS0 (BootFLASH @ E000_0000 - E07F_FFFF 8Mbytes) */
___BOOT_FLASH = BOOTFLASH_BASE_ADDRESS;
___BOOT_FLASH_SIZE = BOOTFLASH_SIZE;
#if TARGET_ADDRESS == BOOTFLASH_BASE_ADDRESS
/* BaS */
__BAS_LMA = LOADADDR(.bas);
__BAS_IN_RAM = ADDR(.bas);
__BAS_SIZE = SIZEOF(.bas);
/* BaS */
__BAS_LMA = LOADADDR(.bas);
__BAS_IN_RAM = ADDR(.bas);
__BAS_SIZE = SIZEOF(.bas);
#else
/* BaS is already in RAM - no need to copy anything */
__BAS_IN_RAM = __FASTRAM_END;
__BAS_SIZE = 0;
__BAS_LMA = __BAS_IN_RAM;
/* BaS is already in RAM - no need to copy anything */
__BAS_IN_RAM = __FASTRAM_END;
__BAS_SIZE = 0;
__BAS_LMA = __BAS_IN_RAM;
#endif
/* Other flash components */
__FIRETOS = 0xe0400000;
__EMUTOS = EMUTOS_BASE_ADDRESS;
__EMUTOS_SIZE = 0x00100000;
/* Other flash components */
__FIRETOS = 0xe0400000;
__EMUTOS = EMUTOS_BASE_ADDRESS;
__EMUTOS_SIZE = 0x00100000;
/* where FPGA data lives in flash */
__FPGA_CONFIG = 0xe0700000;
__FPGA_CONFIG_SIZE = 0x100000;
/* where FPGA data lives in flash */
__FPGA_CONFIG = 0xe0700000;
__FPGA_CONFIG_SIZE = 0x100000;
/* VIDEO RAM BASIS */
__VRAM = 0x60000000;
/* VIDEO RAM BASIS */
__VRAM = 0x60000000;
/* Memory mapped registers */
__MBAR = 0xFF000000;
/* Memory mapped registers */
__MBAR = 0xFF000000;
/* 32KB on-chip System SRAM */
__SYS_SRAM = __MBAR + 0x10000;
__SYS_SRAM_SIZE = 0x00008000;
/* 32KB on-chip System SRAM */
__SYS_SRAM = __MBAR + 0x10000;
__SYS_SRAM_SIZE = 0x00008000;
/* MMU memory mapped registers */
__MMUBAR = 0xFF040000;
/* MMU memory mapped registers */
__MMUBAR = 0xFF040000;
#if !defined(MACHINE_M54455) /* MCF54455 does not have RAMBAR0 and RAMBAR1 registers */
/*
* 4KB on-chip Core SRAM0: -> exception table
*/
__RAMBAR0 = 0xFF100000;
__RAMBAR0_SIZE = 0x00001000;
/*
* 4KB on-chip Core SRAM0: -> exception table
*/
__RAMBAR0 = 0xFF100000;
__RAMBAR0_SIZE = 0x00001000;
/* 4KB on-chip Core SRAM1 */
__RAMBAR1 = 0xFF101000;
__RAMBAR1_SIZE = 0x00001000;
__SUP_SP = __RAMBAR1 + __RAMBAR1_SIZE - 4;
/* 4KB on-chip Core SRAM1 */
__RAMBAR1 = 0xFF101000;
__RAMBAR1_SIZE = 0x00001000;
__SUP_SP = __RAMBAR1 + __RAMBAR1_SIZE - 4;
#else
__RAMBAR0 = 0x80000000; /* RAMBAR must be between 0x80000000 on MCF54455 */
__RAMBAR0_SIZE = 0x1000;
__SUP_SP = __RAMBAR0 + __RAMBAR0_SIZE + 0x1000 - 4;
__RAMBAR0 = 0x80000000; /* RAMBAR must be between 0x80000000 on MCF54455 */
__RAMBAR0_SIZE = 0x1000;
__SUP_SP = __RAMBAR0 + __RAMBAR0_SIZE + 0x1000 - 4;
#endif
/*

30
sys/BaS.c
View File

@@ -53,6 +53,8 @@
#include "video.h"
#include "driver_mem.h"
#include "version.h"
// #define DEBUG
#include "debug.h"
@@ -872,6 +874,34 @@ void BaS(void)
uint8_t *src;
uint8_t *dst = (uint8_t *) TOS;
/*
* install (preliminary) exception vectors
*/
setup_vectors();
xprintf("\n\n");
xprintf("%s BASIS system (BaS) v %d.%d (%s, %s)\r\n\r\n",
#if defined(MACHINE_FIREBEE)
"Firebee"
#elif MACHINE_M5484LITE
"m5484 LITEKIT"
#elif MACHINE_M5475EVB
"m5475 EVB"
#else
"unknown platform"
#endif
, MAJOR_VERSION, MINOR_VERSION, __DATE__, __TIME__);
/*
* Determine cause(s) of Reset
*/
if (MCF_SIU_RSR & MCF_SIU_RSR_RST)
xprintf("Reset. Cause: External Reset\r\n");
if (MCF_SIU_RSR & MCF_SIU_RSR_RSTWD)
xprintf("Reset. Cause: Watchdog Timer Reset\n");
if (MCF_SIU_RSR & MCF_SIU_RSR_RSTJTG)
xprintf("Reset. Cause: BDM/JTAG Reset\r\n");
#if defined(MACHINE_FIREBEE) // initialize FireBee specific hardware components */
fpga_configured = init_fpga();

119
sys/sysinit.c
View File

@@ -35,7 +35,6 @@
#include "bas_types.h"
#include "wait.h"
#include "util.h"
#include "version.h"
#if defined(MACHINE_FIREBEE)
#include "firebee.h"
@@ -64,10 +63,8 @@
*/
static void init_slt(void)
{
xprintf("slice timer initialization: ");
MCF_SLT0_STCNT = 0xffffffff;
MCF_SLT0_SCR = MCF_SLT_SCR_TEN | MCF_SLT_SCR_RUN; /* enable and run continuously */
xprintf("finished\r\n");
}
/*
@@ -259,7 +256,6 @@ static void init_serial(void)
MCF_PSC3_PSCCR = 0x05;
#endif /* MACHINE_FIREBEE */
xprintf("\r\nserial interfaces initialization: finished\r\n");
}
/********************************************************************/
@@ -267,8 +263,6 @@ static void init_serial(void)
/********************************************************************/
static bool init_ddram(void)
{
xprintf("SDRAM controller initialization: ");
/*
* Check to see if the SDRAM has already been initialized
* by a run control tool
@@ -376,14 +370,8 @@ static bool init_ddram(void)
#endif /* MACHINE_FIREBEE */
xprintf("finished\r\n");
return true;
}
else
{
xprintf("skipped. Already initialized (running from RAM)\r\n");
}
return false;
}
@@ -392,8 +380,6 @@ static bool init_ddram(void)
*/
static void init_fbcs()
{
xprintf("FlexBus chip select registers initialization: ");
/* Flash */
MCF_FBCS0_CSAR = MCF_FBCS_CSAR_BA(BOOTFLASH_BASE_ADDRESS); /* flash base address */
MCF_FBCS0_CSCR = MCF_FBCS_CSCR_PS_16 | /* 16 bit word access */
@@ -471,8 +457,6 @@ static void init_fbcs()
MCF_FBCS5_CSMR = MCF_FBCS_CSMR_BAM_256M | /* maps 0x60000000 to 0x68000000 */
MCF_FBCS_CSMR_V;
#endif /* MACHINE_FIREBEE */
xprintf("finished\r\n");
}
@@ -510,7 +494,10 @@ static void clear_bss_segment(void)
extern uint8_t _BAS_BSS_END[];
uint8_t *BAS_BSS_END = &_BAS_BSS_END[0];
bzero(BAS_BSS_START, BAS_BSS_END - BAS_BSS_START + 1);
int i;
for (i = 0; i < BAS_BSS_END - BAS_BSS_START + 1; i++)
BAS_BSS_START[i] = 0;
}
void initialize_hardware(void)
@@ -518,29 +505,6 @@ void initialize_hardware(void)
init_gpio();
init_serial();
xprintf("\n\n");
xprintf("%s BASIS system (BaS) v %d.%d (%s, %s)\r\n\r\n",
#if defined(MACHINE_FIREBEE)
"Firebee"
#elif MACHINE_M5484LITE
"m5484 LITEKIT"
#elif MACHINE_M5475EVB
"m5475 EVB"
#else
"unknown platform"
#endif
, MAJOR_VERSION, MINOR_VERSION, __DATE__, __TIME__);
/*
* Determine cause(s) of Reset
*/
if (MCF_SIU_RSR & MCF_SIU_RSR_RST)
xprintf("Reset. Cause: External Reset\r\n");
if (MCF_SIU_RSR & MCF_SIU_RSR_RSTWD)
xprintf("Reset. Cause: Watchdog Timer Reset\n");
if (MCF_SIU_RSR & MCF_SIU_RSR_RSTJTG)
xprintf("Reset. Cause: BDM/JTAG Reset\r\n");
/*
* Clear the Reset Status Register
*/
@@ -548,54 +512,6 @@ void initialize_hardware(void)
| MCF_SIU_RSR_RSTWD
| MCF_SIU_RSR_RSTJTG);
/*
* Determine which processor we are running on
*/
xprintf("JTAGID: ");
switch (MCF_SIU_JTAGID & MCF_SIU_JTAGID_PROCESSOR)
{
case MCF_SIU_JTAGID_MCF5485:
xprintf("MCF5485");
break;
case MCF_SIU_JTAGID_MCF5484:
xprintf("MCF5484");
break;
case MCF_SIU_JTAGID_MCF5483:
xprintf("MCF5483");
break;
case MCF_SIU_JTAGID_MCF5482:
xprintf("MCF5482");
break;
case MCF_SIU_JTAGID_MCF5481:
xprintf("MCF5481");
break;
case MCF_SIU_JTAGID_MCF5480:
xprintf("MCF5480");
break;
case MCF_SIU_JTAGID_MCF5475:
xprintf("MCF5475");
break;
case MCF_SIU_JTAGID_MCF5474:
xprintf("MCF5474");
break;
case MCF_SIU_JTAGID_MCF5473:
xprintf("MCF5473");
break;
case MCF_SIU_JTAGID_MCF5472:
xprintf("MCF5472");
break;
case MCF_SIU_JTAGID_MCF5471:
xprintf("MCF5471");
break;
case MCF_SIU_JTAGID_MCF5470:
xprintf("MCF5470");
break;
}
/*
* Determine the processor revision
*/
xprintf(" (revision %d)\r\n", ((MCF_SIU_JTAGID & MCF_SIU_JTAGID_REV) >> 28));
/* make sure MMU is disabled */
MCF_MMU_MMUCR = 0; /* MMU off */
@@ -606,25 +522,9 @@ void initialize_hardware(void)
init_ddram();
#if defined(MACHINE_M5484LITE) || defined(MACHINE_M5475EVB)
dbg("Fire Engine Control register: %02x\r\n", * (uint8_t *) 0x61000000);
dbg("Fire Engine interrupt register: %02x\r\n", * (uint8_t *) 0x62000000);
dbg("Fire Engine interrupt mask register: %02x\r\n", * (uint8_t *) 0x63000000);
dbg("Fire Engine power management register: %02x\r\n", * (uint8_t *) 0x64000000);
dbg("Fire Engine EEPROM SPI register: %02x\r\n", * (uint8_t *) 0x65000000);
dbg("Fire Engine Flash register: %02x\r\n", * (uint8_t *) 0x66000000);
dbg("Fire Engine CPLD revision register: %02x\r\n", * (uint8_t *) 0x67000000);
dbg("Fire Engine Hardware revision register:%02x\r\n", * (uint8_t *) 0x68000000);
dbg("write control register 0x%02x\r\n", 1 << 7);
* (uint8_t *) 0x61000000 = 1 << 7;
dbg("Fire Engine Control register: %02x\r\n", * (uint8_t *) 0x61000000);
#endif /* MACHINE_M5484LITE */
/*
* install (preliminary) exception vectors
*/
setup_vectors();
/*
* save the planet (and reduce case heat): disable clocks of unused SOC modules
*/
@@ -646,12 +546,17 @@ void initialize_hardware(void)
/* the following only makes sense _after_ DDRAM has been initialized */
clear_bss_segment();
xprintf(".bss segment cleared\r\n");
if (BAS_LMA != BAS_IN_RAM)
{
xprintf("copy BaS to RAM\r\n");
memcpy((void *) BAS_IN_RAM, BAS_LMA, BAS_SIZE);
int i;
/* although tempting, do not use memcpy() here */
for (i = 0; i < BAS_SIZE; i++)
{
BAS_IN_RAM[i] = BAS_LMA[i];
}
/* we have copied a code area, so flush the caches */
flush_and_invalidate_caches();