diff --git a/c/src/lib/libbsp/arm/rtl22xx/ChangeLog b/c/src/lib/libbsp/arm/rtl22xx/ChangeLog index c36a3074fc..3d3f2229f0 100644 --- a/c/src/lib/libbsp/arm/rtl22xx/ChangeLog +++ b/c/src/lib/libbsp/arm/rtl22xx/ChangeLog @@ -5,6 +5,8 @@ 2007-04-25 Ray Xu + * include/tm27.h, startup/bspstart.c, startup/exit.c, + startup/linkcmds: New (Initial submission). * Makefile.am, README, bsp_specs, configure.ac, console/lpc22xx_uart.h, console/uart.c, include/bsp.h, network/network.c: New (Initial submission). diff --git a/c/src/lib/libbsp/arm/rtl22xx/include/tm27.h b/c/src/lib/libbsp/arm/rtl22xx/include/tm27.h new file mode 100644 index 0000000000..b417668d83 --- /dev/null +++ b/c/src/lib/libbsp/arm/rtl22xx/include/tm27.h @@ -0,0 +1,32 @@ +/* + * tm27.h + * + * 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. + * + * $Id$ + */ + +#ifndef _RTEMS_TMTEST27 +#error "This is an RTEMS internal file you must not include directly." +#endif + +#ifndef __tm27_h +#define __tm27_h + +/* + * Define the interrupt mechanism for Time Test 27 + */ + +#define MUST_WAIT_FOR_INTERRUPT 0 + +#define Install_tm27_vector( handler ) /* empty */ + +#define Cause_tm27_intr() /* empty */ + +#define Clear_tm27_intr() /* empty */ + +#define Lower_tm27_intr() /* empty */ + +#endif diff --git a/c/src/lib/libbsp/arm/rtl22xx/startup/bspstart.c b/c/src/lib/libbsp/arm/rtl22xx/startup/bspstart.c new file mode 100644 index 0000000000..ef5877a604 --- /dev/null +++ b/c/src/lib/libbsp/arm/rtl22xx/startup/bspstart.c @@ -0,0 +1,284 @@ +/* + * LPC22XX Startup code + * + * Copyright (c) 2005 by Ray X + * + * 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 +#include +#include +#include + + +/*************************************************************/ +/* Macros */ +/*************************************************************/ + +/*************************************************************/ +/* Data Structures */ +/*************************************************************/ + +/*************************************************************/ +/* Global Variables */ +/*************************************************************/ +/*FIX ME:we do not have SDRAM, but can I define mutiple SRAM?*/ + +extern void *_flash_size; +extern void *_flash_base; +extern void *_sdram_size; +extern void *_sdram_base; +extern void *_bss_free_start; +extern void *_bss_start_; +extern void *_bss_end_; + + +unsigned long free_mem_start; +unsigned long free_mem_end; + +/* The original BSP configuration table from the application and our copy of it + with some changes. */ + +extern rtems_configuration_table Configuration; +rtems_configuration_table BSP_Configuration; + +rtems_cpu_table Cpu_table; /* CPU configuration table. */ +char *rtems_progname; /* Program name - from main(). */ + +/*************************************************************/ +/* Function prototypes */ +/*************************************************************/ +extern void rtems_irq_mngt_init(void); +void bsp_libc_init( void *, uint32_t, int ); +void bsp_postdriver_hook(void); +extern void UART0_Ini(void); +extern void printi(unsigned long); +extern void debug_printk(char*); +/**************************************************************************/ +/* */ +/* NAME: bps_pretasking_hook - Function to setup system before startup */ +/* */ +/* DESCRIPTION: */ +/* This function is called before drivers are initialized and used */ +/* to setup libc and BSP extensions. It configures non cacheable */ +/* SDRAM, SRAM, AIM, and ADM regions and sets up the CPU's memory */ +/* protection unit. */ +/* */ +/* GLOBALS USED: */ +/* free_mem_start */ +/* free_mem_end */ +/* */ +/* RESTRICTIONS/LIMITATIONS: */ +/* Since this function is setting up libc, it cannot use and libc */ +/* functions. */ +/* */ +/**************************************************************************/ +void bsp_pretasking_hook(void) +{ + uint32_t heap_start; + uint32_t heap_size; + + /* + * Set up the heap. It uses all free SDRAM except that reserved + * for non-cached uses. + */ + heap_start = free_mem_start; + + /* heap_size = (free_mem_end - heap_start - MEM_NOCACHE_SIZE); */ + /*the board seems to have only 512K memory, we use 256K as heap*/ + heap_size = 0x40000; + + bsp_libc_init((void *)heap_start, heap_size, 0); + +#ifdef RTEMS_DEBUG + + rtems_debug_enable(RTEMS_DEBUG_ALL_MASK); + +#endif /* RTEMS_DEBUG */ + +} /* bsp_pretasking_hook */ + +/**************************************************************************/ +/* */ +/* NAME: bsp_start_default - BSP initialization function */ +/* */ +/* DESCRIPTION: */ +/* This function is called before RTEMS is initialized and used */ +/* adjust the kernel's configuration. */ +/* */ +/* This function also configures the CPU's memory protection unit. */ +/* */ +/* GLOBALS USED: */ +/* CPU_table */ +/* BSP_Configuration */ +/* free_mem_start */ +/* free_mem_end */ +/* free_mem_nocache_start */ +/* _bss_free_start */ +/* mpu_region_tbl */ +/* */ +/* */ +/* */ +/* */ +/* RESTRICTIONS/LIMITATIONS: */ +/* Since RTEMS is not configured, no RTEMS functions can be called. */ +/* */ +/**************************************************************************/ +void bsp_start_default( void ) +{ + uint32_t i; + PINSEL2 =0x0f814914; + BCFG0 = 0x1000ffef; + BCFG1 = 0x1000ffef; + + MEMMAP = 0x2; //debug and excute outside chip + + PLLCON = 1; +#if (Fpclk / (Fcclk / 4)) == 1 + VPBDIV = 0; +#endif +#if (Fpclk / (Fcclk / 4)) == 2 + VPBDIV = 2; +#endif +#if (Fpclk / (Fcclk / 4)) == 4 + VPBDIV = 1; +#endif + +#if (Fcco / Fcclk) == 2 + PLLCFG = ((Fcclk / Fosc) - 1) | (0 << 5); +#endif +#if (Fcco / Fcclk) == 4 + PLLCFG = ((Fcclk / Fosc) - 1) | (1 << 5); +#endif +#if (Fcco / Fcclk) == 8 + PLLCFG = ((Fcclk / Fosc) - 1) | (2 << 5); +#endif +#if (Fcco / Fcclk) == 16 + PLLCFG = ((Fcclk / Fosc) - 1) | (3 << 5); +#endif + PLLFEED = 0xaa; + PLLFEED = 0x55; + while((PLLSTAT & (1 << 10)) == 0); + PLLCON = 3; + PLLFEED = 0xaa; + PLLFEED = 0x55; + + /* memory configure */ + //MAMCR = 0; + // MAMTIM = 3; + //MAMCR = 2; + + /* init VIC */ + VICIntEnClr = 0xffffffff; + VICVectAddr = 0; + VICIntSelect = 0; + + /* disable interrupts */ + /* Setup interrupt controller.*/ + VICProtection = 0; + + + Cpu_table.pretasking_hook = bsp_pretasking_hook; + Cpu_table.postdriver_hook = bsp_postdriver_hook; + Cpu_table.do_zero_of_workspace = TRUE; + BSP_Configuration.microseconds_per_tick=100000; + /* Place RTEMS workspace at beginning of free memory. */ + BSP_Configuration.work_space_start = (void *)&_bss_free_start; + + free_mem_start = ((uint32_t)&_bss_free_start + + BSP_Configuration.work_space_size); + + free_mem_end = ((uint32_t)&_sdram_base + (uint32_t)&_sdram_size); + + UART0_Ini(); + + #if 0 + debug_printk(" bsp_start_defalt"); + + debug_printk(" _bss_free_start"); + printi((int)&_bss_free_start); + + debug_printk(" free_mem_start"); + printi((int)free_mem_start); + + debug_printk(" _sdram_base"); + printi((int)&_sdram_base); + + debug_printk(" _sdram_size"); + printi((int)&_sdram_size); + + debug_printk(" free_mem_end"); + printi((int)free_mem_end); + + + printi(free_mem_end); + #endif + + /* + * Init rtems exceptions management + */ + rtems_exception_init_mngt(); + + /* + * Init rtems interrupt management + */ + rtems_irq_mngt_init(); + + /* + * The following information is very useful when debugging. + */ +#if 0 + + printk( "work_space_size = 0x%x\n", BSP_Configuration.work_space_size ); + printk( "maximum_extensions = 0x%x\n", BSP_Configuration.maximum_extensions ); + printk( "microseconds_per_tick = 0x%x\n", + BSP_Configuration.microseconds_per_tick ); + printk( "ticks_per_timeslice = 0x%x\n", + BSP_Configuration.ticks_per_timeslice ); + printk( "maximum_devices = 0x%x\n", BSP_Configuration.maximum_devices ); + printk( "number_of_device_drivers = 0x%x\n", + BSP_Configuration.number_of_device_drivers ); + printk( "Device_driver_table = 0x%x\n", + BSP_Configuration.Device_driver_table ); + + /* printk( "_stack_size = 0x%x\n", _stack_size );*/ + printk( "work_space_start = 0x%x\n", BSP_Configuration.work_space_start ); + printk( "work_space_size = 0x%x\n", BSP_Configuration.work_space_size ); +#endif +} /* bsp_start */ + + +/** + * Reset the system. + * + * This functions enables the watchdog and waits for it to + * fire, thus resetting the system. + */ +/** + * Reset the system. + * + * This functions enables the watchdog and waits for it to + * fire, thus resetting the system. + */ +void bsp_reset(void) +{ + rtems_interrupt_level level; + + _CPU_ISR_Disable(level); + + while(1); +} + +/* + * By making this a weak alias for bsp_start_default, a brave soul + * can override the actual bsp_start routine used. + */ + +void bsp_start (void) __attribute__ ((weak, alias("bsp_start_default"))); diff --git a/c/src/lib/libbsp/arm/rtl22xx/startup/exit.c b/c/src/lib/libbsp/arm/rtl22xx/startup/exit.c new file mode 100644 index 0000000000..4e357dcf17 --- /dev/null +++ b/c/src/lib/libbsp/arm/rtl22xx/startup/exit.c @@ -0,0 +1,40 @@ +/* + * Cirrus LPC22XX BSP Shutdown code + * + * Copyright (c) 2002 by Jay Monkman + * + * 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 +#include +#include +#include + +int uart_poll_read(int); + +void rtemsReboot (void) +{ + asm volatile ("b _start"); +} + +void bsp_cleanup(void) +{ + static char line[]="\nEXECUTIVE SHUTDOWN! Any key to reboot..."; + /* + * AT this point, the console driver is disconnected => we must + * use polled output/input. This is exactly what printk + * does. + */ + printk("\n"); + printk(line); + while (uart_poll_read(0) < 0) continue; + + /* rtemsReboot(); */ +} diff --git a/c/src/lib/libbsp/arm/rtl22xx/startup/linkcmds b/c/src/lib/libbsp/arm/rtl22xx/startup/linkcmds new file mode 100644 index 0000000000..a9445ba7e2 --- /dev/null +++ b/c/src/lib/libbsp/arm/rtl22xx/startup/linkcmds @@ -0,0 +1,239 @@ +/* + * Philips lpc ARM linker script + * By Ray,Xu + * Rayx.cn@gmail.com + * + * 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. + * + * + * $Id$ + * LPC22xx ARM do not have a +*/ + +OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", + "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) + + +MEMORY { + sdram : ORIGIN = 0x81000000, LENGTH = 512K + sram : ORIGIN = 0x40000000, LENGTH = 16K + regs : ORIGIN = 0xe0000000, LENGTH = 2M +} + +/* + * Declare some sizes. + */ + +_sdram_base = DEFINED(_sdram_base) ? _sdram_base : 0x81000000; +_sdram_size = DEFINED(_sdram_size) ? _sdram_size : 512K; + + +_irq_stack_size = DEFINED(_irq_stack_size) ? _irq_stack_size : 0x100; +_fiq_stack_size = DEFINED(_fiq_stack_size) ? _fiq_stack_size : 0x50; +_abt_stack_size = DEFINED(_abt_stack_size) ? _abt_stack_size : 0x50; +_svc_stack_size = DEFINED(_svc_stack_size) ? _svc_stack_size : 0x2000; + + + +/* Do we need any of these for elf? + __DYNAMIC = 0; */ + +SECTIONS +{ + .base : + { + _sram_base = .; + arm_exception_table = .; + + arm_reset_vect = .; /* 0x00 */ + . += 4; + + arm_undef_vect = .; /* 0x04 */ + . += 4; + + arm_swi_vect = .; /* 0x08 */ + . += 4; + + arm_iabrt_vect = .; /* 0x0c */ + . += 4; + + arm_dabrt_vect = .; /* 0x10 */ + . += 4; + + /* no vector here */ + . += 4; + + arm_irq_vect = .; /* 0x18 */ + . += 4; + + arm_fiq_vect = .; /* 0x1c */ + . += 4; + + + rtems_vector_table = .; + . += (8 * 4); /* 8 ARM interrupts */ + + /*bsp_vector_table = .;*/ + /*. += (64 * 4); 64 LPC22xx interrupts */ + + . = ALIGN (0x100); + + } > sram + + + .text : + { + _text_start = .; + CREATE_OBJECT_SYMBOLS + *(.text) + *(.text.*) + + /* + * Special FreeBSD sysctl sections. + */ + . = ALIGN (16); + __start_set_sysctl_set = .; + *(set_sysctl_*); + __stop_set_sysctl_set = ABSOLUTE(.); + *(set_domain_*); + *(set_pseudo_*); + + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + *(.gnu.linkonce.t*) + *(.glue_7) + *(.glue_7t) + + /* I think these come from the ld docs: */ + ___CTOR_LIST__ = .; + LONG((___CTOR_END__ - ___CTOR_LIST__) / 4 - 2) + *(.ctors) + LONG(0) + ___CTOR_END__ = .; + ___DTOR_LIST__ = .; + LONG((___DTOR_END__ - ___DTOR_LIST__) / 4 - 2) + *(.dtors) + LONG(0) + ___DTOR_END__ = .; + + _etext = .; + PROVIDE (etext = .); + } > sdram + + .init : + { + KEEP (*(.init)) + } > sdram /*=0*/ + + .fini : + { + KEEP (*(.fini)) + } > sdram /*=0*/ + + .data : + { + *(.data) + *(.data.*) + *(.gnu.linkonce.d*) + *(.jcr) + SORT(CONSTRUCTORS) + _edata = .; + } > sdram + + .eh_frame : { *(.eh_frame) } > sdram + .data1 : { *(.data1) } > sdram + .eh_frame : { *(.eh_frame) } > sdram + .gcc_except_table : { *(.gcc_except_table) } > sdram + + .rodata : + { + *(.rodata) + *(.rodata.*) + *(.gnu.linkonce.r*) + } > sdram + + .bss : + { + _bss_start_ = .; + _clear_start = .; + *(.bss) + *(.bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + . = ALIGN(256); + _clear_end = .; + + . = ALIGN (64); + _abt_stack = .; + . += _abt_stack_size; + + . = ALIGN (256); + _irq_stack = .; + . += _irq_stack_size; + + . = ALIGN (64); + _fiq_stack = .; + . += _fiq_stack_size; + + . = ALIGN (64); + _svc_stack = .; + . += _svc_stack_size; + + _bss_end_ = .; + _end = .; + __end = .; + + _bss_free_start = .; + . = ALIGN (1024); + } > sdram + +/* + .regs : + { + lpc22xx_regs_base = .; + lpc22xx_regs = .; + . += 8192; + } > regs +*/ + + +/* Debugging stuff follows? */ + + /* Stabs debugging sections. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + /* DWARF debug sections. + Symbols in the DWARF debugging sections are relative to the beginning + of the section so we begin them at 0. */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + /* DWARF 2 */ + .debug_info 0 : { *(.debug_info) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + + /*.stack 0x80000 : { _stack = .; *(.stack) }*/ + /* These must appear regardless of . */ +} +