diff options
author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:09 -0500 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:16 +0200 |
commit | 8d1f268204b07e172f3cb5cee0a3974d605b0b98 (patch) | |
tree | c3359e920cc886e7060fb099bf933496aca37153 /cpu/mpc8xx/bedbug_860.c | |
parent | 819833af39a91fa1c1e8252862bbda6f5a602f7b (diff) | |
download | u-boot-imx-8d1f268204b07e172f3cb5cee0a3974d605b0b98.zip u-boot-imx-8d1f268204b07e172f3cb5cee0a3974d605b0b98.tar.gz u-boot-imx-8d1f268204b07e172f3cb5cee0a3974d605b0b98.tar.bz2 |
ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'cpu/mpc8xx/bedbug_860.c')
-rw-r--r-- | cpu/mpc8xx/bedbug_860.c | 316 |
1 files changed, 0 insertions, 316 deletions
diff --git a/cpu/mpc8xx/bedbug_860.c b/cpu/mpc8xx/bedbug_860.c deleted file mode 100644 index 0308bbb..0000000 --- a/cpu/mpc8xx/bedbug_860.c +++ /dev/null @@ -1,316 +0,0 @@ -/* - * Bedbug Functions specific to the MPC860 chip - */ - -#include <common.h> -#include <command.h> -#include <linux/ctype.h> -#include <bedbug/bedbug.h> -#include <bedbug/regs.h> -#include <bedbug/ppc.h> -#include <bedbug/type.h> - -#if defined(CONFIG_CMD_BEDBUG) && defined(CONFIG_8xx) - -#define MAX_BREAK_POINTS 2 - -extern CPU_DEBUG_CTX bug_ctx; - -void bedbug860_init __P((void)); -void bedbug860_do_break __P((cmd_tbl_t*,int,int,char*[])); -void bedbug860_break_isr __P((struct pt_regs*)); -int bedbug860_find_empty __P((void)); -int bedbug860_set __P((int,unsigned long)); -int bedbug860_clear __P((int)); - - -/* ====================================================================== - * Initialize the global bug_ctx structure for the MPC860. Clear all - * of the breakpoints. - * ====================================================================== */ - -void bedbug860_init( void ) -{ - int i; - /* -------------------------------------------------- */ - - bug_ctx.hw_debug_enabled = 0; - bug_ctx.stopped = 0; - bug_ctx.current_bp = 0; - bug_ctx.regs = NULL; - - bug_ctx.do_break = bedbug860_do_break; - bug_ctx.break_isr = bedbug860_break_isr; - bug_ctx.find_empty = bedbug860_find_empty; - bug_ctx.set = bedbug860_set; - bug_ctx.clear = bedbug860_clear; - - for( i = 1; i <= MAX_BREAK_POINTS; ++i ) - (*bug_ctx.clear)( i ); - - puts ("BEDBUG:ready\n"); - return; -} /* bedbug_init_breakpoints */ - - - -/* ====================================================================== - * Set/clear/show one of the hardware breakpoints for the 860. The "off" - * string will disable a specific breakpoint. The "show" string will - * display the current breakpoints. Otherwise an address will set a - * breakpoint at that address. Setting a breakpoint uses the CPU-specific - * set routine which will assign a breakpoint number. - * ====================================================================== */ - -void bedbug860_do_break (cmd_tbl_t *cmdtp, int flag, int argc, - char *argv[]) -{ - long addr = 0; /* Address to break at */ - int which_bp; /* Breakpoint number */ - /* -------------------------------------------------- */ - - if (argc < 2) - { - cmd_usage(cmdtp); - return; - } - - /* Turn off a breakpoint */ - - if( strcmp( argv[ 1 ], "off" ) == 0 ) - { - if( bug_ctx.hw_debug_enabled == 0 ) - { - printf( "No breakpoints enabled\n" ); - return; - } - - which_bp = simple_strtoul( argv[ 2 ], NULL, 10 ); - - if( bug_ctx.clear ) - (*bug_ctx.clear)( which_bp ); - - printf( "Breakpoint %d removed\n", which_bp ); - return; - } - - /* Show a list of breakpoints */ - - if( strcmp( argv[ 1 ], "show" ) == 0 ) - { - for( which_bp = 1; which_bp <= MAX_BREAK_POINTS; ++which_bp ) - { - - switch( which_bp ) - { - case 1: addr = GET_CMPA(); break; - case 2: addr = GET_CMPB(); break; - case 3: addr = GET_CMPC(); break; - case 4: addr = GET_CMPD(); break; - } - - printf( "Breakpoint [%d]: ", which_bp ); - if( addr == 0 ) - printf( "NOT SET\n" ); - else - disppc( (unsigned char *)addr, 0, 1, bedbug_puts, F_RADHEX ); - } - return; - } - - /* Set a breakpoint at the address */ - - if( !isdigit( argv[ 1 ][ 0 ])) - { - cmd_usage(cmdtp); - return; - } - - addr = simple_strtoul( argv[ 1 ], NULL, 16 ) & 0xfffffffc; - - if(( bug_ctx.set ) && ( which_bp = (*bug_ctx.set)( 0, addr )) > 0 ) - { - printf( "Breakpoint [%d]: ", which_bp ); - disppc( (unsigned char *)addr, 0, 1, bedbug_puts, F_RADHEX ); - } - - return; -} /* bedbug860_do_break */ - - - -/* ====================================================================== - * Handle a breakpoint. First determine which breakpoint was hit by - * looking at the DeBug Status Register (DBSR), clear the breakpoint - * and enter a mini main loop. Stay in the loop until the stopped flag - * in the debug context is cleared. - * ====================================================================== */ - -void bedbug860_break_isr( struct pt_regs *regs ) -{ - unsigned long addr; /* Address stopped at */ - unsigned long cause; /* Address stopped at */ - /* -------------------------------------------------- */ - - cause = GET_ICR(); - - if( !(cause & 0x00000004)) { - printf( "Not an instruction breakpoint (ICR 0x%08lx)\n", cause ); - return; - } - - addr = regs->nip; - - if( addr == GET_CMPA() ) - { - bug_ctx.current_bp = 1; - } - else if( addr == GET_CMPB() ) - { - bug_ctx.current_bp = 2; - } - else if( addr == GET_CMPC() ) - { - bug_ctx.current_bp = 3; - } - else if( addr == GET_CMPD() ) - { - bug_ctx.current_bp = 4; - } - - bedbug_main_loop( addr, regs ); - return; -} /* bedbug860_break_isr */ - - - -/* ====================================================================== - * Look through all of the hardware breakpoints available to see if one - * is unused. - * ====================================================================== */ - -int bedbug860_find_empty( void ) -{ - /* -------------------------------------------------- */ - - if( GET_CMPA() == 0 ) - return 1; - - if( GET_CMPB() == 0 ) - return 2; - - if( GET_CMPC() == 0 ) - return 3; - - if( GET_CMPD() == 0 ) - return 4; - - return 0; -} /* bedbug860_find_empty */ - - - -/* ====================================================================== - * Set a breakpoint. If 'which_bp' is zero then find an unused breakpoint - * number, otherwise reassign the given breakpoint. If hardware debugging - * is not enabled, then turn it on via the MSR and DBCR0. Set the break - * address in the appropriate IACx register and enable proper address - * beakpoint in DBCR0. - * ====================================================================== */ - -int bedbug860_set( int which_bp, unsigned long addr ) -{ - /* -------------------------------------------------- */ - - /* Only look if which_bp == 0, else use which_bp */ - if(( bug_ctx.find_empty ) && ( !which_bp ) && - ( which_bp = (*bug_ctx.find_empty)()) == 0 ) - { - printf( "All breakpoints in use\n" ); - return 0; - } - - if( which_bp < 1 || which_bp > MAX_BREAK_POINTS ) - { - printf( "Invalid break point # %d\n", which_bp ); - return 0; - } - - if( ! bug_ctx.hw_debug_enabled ) - { - bug_ctx.hw_debug_enabled = 1; - SET_DER( GET_DER() | 0x00000004 ); - } - - switch( which_bp ) - { - case 1: - SET_CMPA( addr ); - SET_ICTRL( GET_ICTRL() | 0x80080800 ); /* CTA=Equal,IW0=Match A,SIW0EN */ - break; - - case 2: - SET_CMPB( addr ); - SET_ICTRL( GET_ICTRL() | 0x10020400 ); /* CTB=Equal,IW1=Match B,SIW1EN */ - break; - - case 3: - SET_CMPC( addr ); - SET_ICTRL( GET_ICTRL() | 0x02008200 ); /* CTC=Equal,IW2=Match C,SIW2EN */ - break; - - case 4: - SET_CMPD( addr ); - SET_ICTRL( GET_ICTRL() | 0x00404100 ); /* CTD=Equal,IW3=Match D,SIW3EN */ - break; - } - - return which_bp; -} /* bedbug860_set */ - - - -/* ====================================================================== - * Disable a specific breakoint by setting the appropriate IACx register - * to zero and claring the instruction address breakpoint in DBCR0. - * ====================================================================== */ - -int bedbug860_clear( int which_bp ) -{ - /* -------------------------------------------------- */ - - if( which_bp < 1 || which_bp > MAX_BREAK_POINTS ) - { - printf( "Invalid break point # (%d)\n", which_bp ); - return -1; - } - - switch( which_bp ) - { - case 1: - SET_CMPA( 0 ); - SET_ICTRL( GET_ICTRL() & ~0x80080800 ); /* CTA=Equal,IW0=Match A,SIW0EN */ - break; - - case 2: - SET_CMPB( 0 ); - SET_ICTRL( GET_ICTRL() & ~0x10020400 ); /* CTB=Equal,IW1=Match B,SIW1EN */ - break; - - case 3: - SET_CMPC( 0 ); - SET_ICTRL( GET_ICTRL() & ~0x02008200 ); /* CTC=Equal,IW2=Match C,SIW2EN */ - break; - - case 4: - SET_CMPD( 0 ); - SET_ICTRL( GET_ICTRL() & ~0x00404100 ); /* CTD=Equal,IW3=Match D,SIW3EN */ - break; - } - - return 0; -} /* bedbug860_clear */ - - -/* ====================================================================== */ -#endif |