Merge branch 'linus' into stackprotector

Conflicts:
	arch/x86/kernel/Makefile
	include/asm-x86/pda.h

1 files changed, 11 insertions, 308 deletions

diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
index f719114..051b05c 100644
--- a/arch/blackfin/mach-bf548/head.S
+++ b/arch/blackfin/mach-bf548/head.S
@@ -30,265 +30,13 @@
 #include <linux/linkage.h>
 #include <linux/init.h>
 #include <asm/blackfin.h>
-#include <asm/trace.h>
-#if CONFIG_BFIN_KERNEL_CLOCK
-#include <asm/mach-common/clocks.h>
-#include <asm/mach/mem_init.h>
+#ifdef CONFIG_BFIN_KERNEL_CLOCK
+#include <asm/clocks.h>
+#include <mach/mem_init.h>
 #endif
 
-.extern ___bss_stop
-.extern ___bss_start
-.extern _bf53x_relocate_l1_mem
-
-#define INITIAL_STACK   0xFFB01000
-
-__INIT
-
-ENTRY(__start)
-	/* R0: argument of command line string, passed from uboot, save it */
-	R7 = R0;
-	/* Enable Cycle Counter and Nesting Of Interrupts */
-#ifdef CONFIG_BFIN_SCRATCH_REG_CYCLES
-	R0 = SYSCFG_SNEN;
-#else
-	R0 = SYSCFG_SNEN | SYSCFG_CCEN;
-#endif
-	SYSCFG = R0;
-	R0 = 0;
-
-	/* Clear Out All the data and pointer  Registers*/
-	R1 = R0;
-	R2 = R0;
-	R3 = R0;
-	R4 = R0;
-	R5 = R0;
-	R6 = R0;
-
-	P0 = R0;
-	P1 = R0;
-	P2 = R0;
-	P3 = R0;
-	P4 = R0;
-	P5 = R0;
-
-	LC0 = r0;
-	LC1 = r0;
-	L0 = r0;
-	L1 = r0;
-	L2 = r0;
-	L3 = r0;
-
-	/* Clear Out All the DAG Registers*/
-	B0 = r0;
-	B1 = r0;
-	B2 = r0;
-	B3 = r0;
-
-	I0 = r0;
-	I1 = r0;
-	I2 = r0;
-	I3 = r0;
-
-	M0 = r0;
-	M1 = r0;
-	M2 = r0;
-	M3 = r0;
-
-	trace_buffer_init(p0,r0);
-	P0 = R1;
-	R0 = R1;
-
-	/* Turn off the icache */
-	p0.l = LO(IMEM_CONTROL);
-	p0.h = HI(IMEM_CONTROL);
-	R1 = [p0];
-	R0 = ~ENICPLB;
-	R0 = R0 & R1;
-	[p0] = R0;
-	SSYNC;
-
-	/* Turn off the dcache */
-	p0.l = LO(DMEM_CONTROL);
-	p0.h = HI(DMEM_CONTROL);
-	R1 = [p0];
-	R0 = ~ENDCPLB;
-	R0 = R0 & R1;
-	[p0] = R0;
-	SSYNC;
-
-	/* Initialize stack pointer */
-	SP.L = LO(INITIAL_STACK);
-	SP.H = HI(INITIAL_STACK);
-	FP = SP;
-	USP = SP;
-
-#ifdef CONFIG_EARLY_PRINTK
-	SP += -12;
-	call _init_early_exception_vectors;
-	SP += 12;
-#endif
-
-	/* Put The Code for PLL Programming and SDRAM Programming in L1 ISRAM */
-	call _bf53x_relocate_l1_mem;
-#if CONFIG_BFIN_KERNEL_CLOCK
-	call _start_dma_code;
-#endif
-	/* Code for initializing Async memory banks */
-
-	p2.h = hi(EBIU_AMBCTL1);
-	p2.l = lo(EBIU_AMBCTL1);
-	r0.h = hi(AMBCTL1VAL);
-	r0.l = lo(AMBCTL1VAL);
-	[p2] = r0;
-	ssync;
-
-	p2.h = hi(EBIU_AMBCTL0);
-	p2.l = lo(EBIU_AMBCTL0);
-	r0.h = hi(AMBCTL0VAL);
-	r0.l = lo(AMBCTL0VAL);
-	[p2] = r0;
-	ssync;
-
-	p2.h = hi(EBIU_AMGCTL);
-	p2.l = lo(EBIU_AMGCTL);
-	r0 = AMGCTLVAL;
-	w[p2] = r0;
-	ssync;
-
-	p2.h = hi(EBIU_MBSCTL);
-	p2.l = lo(EBIU_MBSCTL);
-	r0.h = hi(CONFIG_EBIU_MBSCTLVAL);
-	r0.l = lo(CONFIG_EBIU_MBSCTLVAL);
-	[p2] = r0;
-	ssync;
-
-	p2.h = hi(EBIU_MODE);
-	p2.l = lo(EBIU_MODE);
-	r0.h = hi(CONFIG_EBIU_MODEVAL);
-	r0.l = lo(CONFIG_EBIU_MODEVAL);
-	[p2] = r0;
-	ssync;
-
-	p2.h = hi(EBIU_FCTL);
-	p2.l = lo(EBIU_FCTL);
-	r0.h = hi(CONFIG_EBIU_FCTLVAL);
-	r0.l = lo(CONFIG_EBIU_FCTLVAL);
-	[p2] = r0;
-	ssync;
-
-	/* This section keeps the processor in supervisor mode
-	 * during kernel boot.  Switches to user mode at end of boot.
-	 * See page 3-9 of Hardware Reference manual for documentation.
-	 */
-
-	/* EVT15 = _real_start */
-
-	p0.l = lo(EVT15);
-	p0.h = hi(EVT15);
-	p1.l = _real_start;
-	p1.h = _real_start;
-	[p0] = p1;
-	csync;
-
-	p0.l = lo(IMASK);
-	p0.h = hi(IMASK);
-	p1.l = IMASK_IVG15;
-	p1.h = 0x0;
-	[p0] = p1;
-	csync;
-
-	raise 15;
-	p0.l = .LWAIT_HERE;
-	p0.h = .LWAIT_HERE;
-	reti = p0;
-#if ANOMALY_05000281
-	nop;
-	nop;
-	nop;
-#endif
-	rti;
-
-.LWAIT_HERE:
-	jump .LWAIT_HERE;
-ENDPROC(__start)
-
-ENTRY(_real_start)
-	[ -- sp ] = reti;
-	p0.l = lo(WDOG_CTL);
-	p0.h = hi(WDOG_CTL);
-	r0 = 0xAD6(z);
-	w[p0] = r0;	/* watchdog off for now */
-	ssync;
-
-	/* Code update for BSS size == 0
-	 * Zero out the bss region.
-	 */
-
-	p1.l = ___bss_start;
-	p1.h = ___bss_start;
-	p2.l = ___bss_stop;
-	p2.h = ___bss_stop;
-	r0 = 0;
-	p2 -= p1;
-	lsetup (.L_clear_bss, .L_clear_bss ) lc0 = p2;
-.L_clear_bss:
-	B[p1++] = r0;
-
-	/* In case there is a NULL pointer reference
-	 * Zero out region before stext
-	 */
-
-	p1.l = 0x0;
-	p1.h = 0x0;
-	r0.l = __stext;
-	r0.h = __stext;
-	r0 = r0 >> 1;
-	p2 = r0;
-	r0 = 0;
-	lsetup (.L_clear_zero, .L_clear_zero ) lc0 = p2;
-.L_clear_zero:
-	W[p1++] = r0;
-
-	/* pass the uboot arguments to the global value command line */
-	R0 = R7;
-	call _cmdline_init;
-
-	p1.l = __rambase;
-	p1.h = __rambase;
-	r0.l = __sdata;
-	r0.h = __sdata;
-	[p1] = r0;
-
-	p1.l = __ramstart;
-	p1.h = __ramstart;
-	p3.l = ___bss_stop;
-	p3.h = ___bss_stop;
-
-	r1 = p3;
-	[p1] = r1;
-
-
-	/*
-	 *  load the current thread pointer and stack
-	 */
-	r1.l = _init_thread_union;
-	r1.h = _init_thread_union;
-
-	r2.l = 0x2000;
-	r2.h = 0x0000;
-	r1 = r1 + r2;
-	sp = r1;
-	usp = sp;
-	fp = sp;
-	call _start_kernel;
-.L_exit:
-	jump.s	.L_exit;
-ENDPROC(_real_start)
-
-__FINIT
-
 .section .l1.text
-#if CONFIG_BFIN_KERNEL_CLOCK
+#ifdef CONFIG_BFIN_KERNEL_CLOCK
 ENTRY(_start_dma_code)
 
 	/* Enable PHY CLK buffer output */
@@ -325,25 +73,19 @@ ENTRY(_start_dma_code)
 	w[p0] = r0.l;
 	ssync;
 
-#if defined(CONFIG_BF54x)
+	/* enable self refresh via SRREQ */
 	P2.H = hi(EBIU_RSTCTL);
 	P2.L = lo(EBIU_RSTCTL);
 	R0 = [P2];
 	BITSET (R0, 3);
-#else
-	P2.H = hi(EBIU_SDGCTL);
-	P2.L = lo(EBIU_SDGCTL);
-	R0 = [P2];
-	BITSET (R0, 24);
-#endif
 	[P2] = R0;
 	SSYNC;
-#if defined(CONFIG_BF54x)
+
+	/* wait for SRACK bit to be set */
 .LSRR_MODE:
 	R0 = [P2];
 	CC = BITTST(R0, 4);
 	if !CC JUMP .LSRR_MODE;
-#endif
 
 	r0 = CONFIG_VCO_MULT & 63;       /* Load the VCO multiplier         */
 	r0 = r0 << 9;                    /* Shift it over,                  */
@@ -352,6 +94,9 @@ ENTRY(_start_dma_code)
 	r1 = PLL_BYPASS;                 /* Bypass the PLL?                 */
 	r1 = r1 << 8;                    /* Shift it over                   */
 	r0 = r1 | r0;                    /* add them all together           */
+#ifdef ANOMALY_05000265
+	r0 = BITSET(r0, 15);             /* Add 250 mV of hysteresis to SPORT input pins */
+#endif
 
 	p0.h = hi(PLL_CTL);
 	p0.l = lo(PLL_CTL);              /* Load the address                */
@@ -375,7 +120,7 @@ ENTRY(_start_dma_code)
 	w[p0] = r0.l;
 	ssync;
 
-#if defined(CONFIG_BF54x)
+	/* disable self refresh by clearing SRREQ */
 	P2.H = hi(EBIU_RSTCTL);
 	P2.L = lo(EBIU_RSTCTL);
 	R0 = [P2];
@@ -407,48 +152,6 @@ ENTRY(_start_dma_code)
 	r0.h = hi(mem_DDRCTL2);
 	[p0] = r0;
 	ssync;
-#else
-	p0.l = lo(EBIU_SDRRC);
-	p0.h = hi(EBIU_SDRRC);
-	r0 = mem_SDRRC;
-	w[p0] = r0.l;
-	ssync;
-
-	p0.l = LO(EBIU_SDBCTL);
-	p0.h = HI(EBIU_SDBCTL);     /* SDRAM Memory Bank Control Register */
-	r0 = mem_SDBCTL;
-	w[p0] = r0.l;
-	ssync;
-
-	P2.H = hi(EBIU_SDGCTL);
-	P2.L = lo(EBIU_SDGCTL);
-	R0 = [P2];
-	BITCLR (R0, 24);
-	p0.h = hi(EBIU_SDSTAT);
-	p0.l = lo(EBIU_SDSTAT);
-	r2.l = w[p0];
-	cc = bittst(r2,3);
-	if !cc jump .Lskip;
-	NOP;
-	BITSET (R0, 23);
-.Lskip:
-	[P2] = R0;
-	SSYNC;
-
-	R0.L = lo(mem_SDGCTL);
-	R0.H = hi(mem_SDGCTL);
-	R1 = [p2];
-	R1 = R1 | R0;
-	[P2] = R1;
-	SSYNC;
-#endif
-
-	p0.h = hi(SIC_IWR0);
-	p0.l = lo(SIC_IWR0);
-	r0.l = lo(IWR_ENABLE_ALL);
-	r0.h = hi(IWR_ENABLE_ALL);
-	[p0] = r0;
-	SSYNC;
 
 	RTS;
 ENDPROC(_start_dma_code)