Blackfin arch: Remove cruft - CONFIG_DEBUG_SERIAL_EARLY_INIT didn't work that...

Blackfin arch: Remove cruft - CONFIG_DEBUG_SERIAL_EARLY_INIT didn't work that well with DEBUG_KERNEL_START
Signed-off-by: NRobin Getz <robin.getz@analog.com>
Signed-off-by: NBryan Wu <bryan.wu@analog.com>

arch/blackfin/kernel/setup.c

@@ -192,11 +192,6 @@ void __init setup_arch(char **cmdline_p)
 	}
 #endif
 
-#ifdef DEBUG_SERIAL_EARLY_INIT
-	bfin_console_init();	/* early console registration */
-	/* this give a chance to get printk() working before crash. */
-#endif
-
 	printk(KERN_INFO "Hardware Trace ");
 	if (bfin_read_TBUFCTL() & 0x1 )
 		printk("Active ");

arch/blackfin/mach-bf533/head.S

@@ -35,9 +35,6 @@
 #include <asm/mach-common/clocks.h>
 #include <asm/mach/mem_init.h>
 #endif
-#if CONFIG_DEBUG_KERNEL_START
-#include <asm/mach-common/def_LPBlackfin.h>
-#endif
 
 .global __rambase
 .global __ramstart
@@ -104,36 +101,6 @@ ENTRY(__start)
 	P0 = R1;
 	R0 = R1;
 
-#if CONFIG_DEBUG_KERNEL_START
-
-/*
- * Set up a temporary Event Vector Table, so if something bad happens before
- * the kernel is fully started, it doesn't vector off into the bootloaders
- * table
- */
-	P0.l = lo(EVT2);
-	P0.h = hi(EVT2);
-	P1.l = lo(EVT15);
-	P1.h = hi(EVT15);
-	P2.l = debug_kernel_start_trap;
-	P2.h = debug_kernel_start_trap;
-
-	RTS = P2;
-	RTI = P2;
-	RTX = P2;
-	RTN = P2;
-	RTE = P2;
-
-.Lfill_temp_vector_table:
-	[P0++] = P2;	/* Core Event Vector Table */
-	CC = P0 == P1;
-	if !CC JUMP .Lfill_temp_vector_table
-	P0 = r0;
-	P1 = r0;
-	P2 = r0;
-
-#endif
-
 	p0.h = hi(FIO_MASKA_C);
 	p0.l = lo(FIO_MASKA_C);
 	r0 = 0xFFFF(Z);
@@ -459,216 +426,6 @@ ENTRY(_start_dma_code)
 ENDPROC(_start_dma_code)
 #endif /* CONFIG_BFIN_KERNEL_CLOCK */
 
-#if CONFIG_DEBUG_KERNEL_START
-debug_kernel_start_trap:
-	/* Set up a temp stack in L1 - SDRAM might not be working  */
-	P0.L = lo(L1_DATA_A_START + 0x100);
-	P0.H = hi(L1_DATA_A_START + 0x100);
-	SP = P0;
-
-	/* Make sure the Clocks are the way I think they should be */
-	r0 = CONFIG_VCO_MULT & 63;       /* Load the VCO multiplier         */
-	r0 = r0 << 9;                    /* Shift it over,                  */
-	r1 = CLKIN_HALF;                 /* Do we need to divide CLKIN by 2?*/
-	r0 = r1 | r0;
-	r1 = PLL_BYPASS;                 /* Bypass the PLL?                 */
-	r1 = r1 << 8;                    /* Shift it over                   */
-	r0 = r1 | r0;                    /* add them all together           */
-
-	p0.h = hi(PLL_CTL);
-	p0.l = lo(PLL_CTL);              /* Load the address                */
-	cli r2;                          /* Disable interrupts              */
-	ssync;
-	w[p0] = r0.l;                    /* Set the value                   */
-	idle;                            /* Wait for the PLL to stablize    */
-	sti r2;                          /* Enable interrupts               */
-
-.Lcheck_again1:
-	p0.h = hi(PLL_STAT);
-	p0.l = lo(PLL_STAT);
-	R0 = W[P0](Z);
-	CC = BITTST(R0,5);
-	if ! CC jump .Lcheck_again1;
-
-	/* Configure SCLK & CCLK Dividers */
-	r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV);
-	p0.h = hi(PLL_DIV);
-	p0.l = lo(PLL_DIV);
-	w[p0] = r0.l;
-	ssync;
-
-	/* Make sure UART is enabled - you can never be sure */
-
-/*
- * Setup for console. Argument comes from the menuconfig
- */
-
-#ifdef CONFIG_BAUD_9600
-#define CONSOLE_BAUD_RATE       9600
-#elif CONFIG_BAUD_19200
-#define CONSOLE_BAUD_RATE       19200
-#elif CONFIG_BAUD_38400
-#define CONSOLE_BAUD_RATE       38400
-#elif CONFIG_BAUD_57600
-#define CONSOLE_BAUD_RATE       57600
-#elif CONFIG_BAUD_115200
-#define CONSOLE_BAUD_RATE       115200
-#endif
-
-	p0.h = hi(UART_GCTL);
-	p0.l = lo(UART_GCTL);
-	r0 = 0x00(Z);
-	w[p0] = r0.L;   /* To Turn off UART clocks */
-	ssync;
-
-	p0.h = hi(UART_LCR);
-	p0.l = lo(UART_LCR);
-	r0 = 0x83(Z);
-	w[p0] = r0.L;   /* To enable DLL writes */
-	ssync;
-
-	R1 = (((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT) / CONFIG_SCLK_DIV) / (CONSOLE_BAUD_RATE * 16));
-
-	p0.h = hi(UART_DLL);
-	p0.l = lo(UART_DLL);
-	r0 = 0xFF(Z);
-	r0 = R1 & R0;
-	w[p0] = r0.L;
-	ssync;
-
-	p0.h = hi(UART_DLH);
-	p0.l = lo(UART_DLH);
-	r1 >>= 8 ;
-	w[p0] = r1.L;
-	ssync;
-
-	p0.h = hi(UART_GCTL);
-	p0.l = lo(UART_GCTL);
-	r0 = 0x0(Z);
-	w[p0] = r0.L;   /* To enable UART clock */
-	ssync;
-
-	p0.h = hi(UART_LCR);
-	p0.l = lo(UART_LCR);
-	r0 = 0x03(Z);
-	w[p0] = r0.L;   /* To Turn on UART */
-	ssync;
-
-	p0.h = hi(UART_GCTL);
-	p0.l = lo(UART_GCTL);
-	r0 = 0x01(Z);
-	w[p0] = r0.L;   /* To Turn on UART Clocks */
-	ssync;
-
-	P0.h = hi(UART_THR);
-	P0.l = lo(UART_THR);
-	P1.h = hi(UART_LSR);
-	P1.l = lo(UART_LSR);
-
-	R0.L = 'K';
-	call .Lwait_char;
-	R0.L='e';
-	call .Lwait_char;
-	R0.L='r';
-	call .Lwait_char;
-	R0.L='n'
-	call .Lwait_char;
-	R0.L='e'
-	call .Lwait_char;
-	R0.L='l';
-	call .Lwait_char;
-	R0.L=' ';
-	call .Lwait_char;
-	R0.L='c';
-	call .Lwait_char;
-	R0.L='r';
-	call .Lwait_char;
-	R0.L='a';
-	call .Lwait_char;
-	R0.L='s';
-	call .Lwait_char;
-	R0.L='h';
-	call .Lwait_char;
-	R0.L='\r';
-	call .Lwait_char;
-	R0.L='\n';
-	call .Lwait_char;
-
-	R0.L='S';
-	call .Lwait_char;
-	R0.L='E';
-	call .Lwait_char;
-	R0.L='Q'
-	call .Lwait_char;
-	R0.L='S'
-	call .Lwait_char;
-	R0.L='T';
-	call .Lwait_char;
-	R0.L='A';
-	call .Lwait_char;
-	R0.L='T';
-	call .Lwait_char;
-	R0.L='=';
-	call .Lwait_char;
-	R2 = SEQSTAT;
-	call .Ldump_reg;
-
-	R0.L=' ';
-	call .Lwait_char;
-	R0.L='R';
-	call .Lwait_char;
-	R0.L='E'
-	call .Lwait_char;
-	R0.L='T'
-	call .Lwait_char;
-	R0.L='X';
-	call .Lwait_char;
-	R0.L='=';
-	call .Lwait_char;
-	R2 = RETX;
-	call .Ldump_reg;
-
-	R0.L='\r';
-	call .Lwait_char;
-	R0.L='\n';
-	call .Lwait_char;
-
-.Ldebug_kernel_start_trap_done:
-	JUMP    .Ldebug_kernel_start_trap_done;
-.Ldump_reg:
-	R3 = 32;
-	R4 = 0x0F;
-	R5 = ':';  /* one past 9 */
-
-.Ldump_reg2:
-	R0 = R2;
-	R3 += -4;
-	R0 >>>= R3;
-	R0 = R0 & R4;
-	R0 += 0x30;
-	CC = R0 <= R5;
-	if CC JUMP .Ldump_reg1;
-	R0 += 7;
-
-.Ldump_reg1:
-	R1.l = W[P1];
-	CC = BITTST(R1, 5);
-	if !CC JUMP .Ldump_reg1;
-	W[P0] = r0;
-
-	CC = R3 == 0;
-	if !CC JUMP .Ldump_reg2
-	RTS;
-
-.Lwait_char:
-	R1.l = W[P1];
-	CC = BITTST(R1, 5);
-	if !CC JUMP .Lwait_char;
-	W[P0] = r0;
-	RTS;
-
-#endif  /* CONFIG_DEBUG_KERNEL_START  */
-
 .data
 
 /*