Merge branch 'linus' into timers/nohz

1 files changed, 0 insertions, 254 deletions

diff --git a/arch/ppc/syslib/mpc52xx_pic.c b/arch/ppc/syslib/mpc52xx_pic.c
deleted file mode 100644
index f58149c03b0..00000000000
--- a/arch/ppc/syslib/mpc52xx_pic.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * Programmable Interrupt Controller functions for the Freescale MPC52xx 
- * embedded CPU.
- *
- * 
- * Maintainer : Sylvain Munaut <tnt@246tNt.com>
- *
- * Based on (well, mostly copied from) the code from the 2.4 kernel by
- * Dale Farnsworth <dfarnsworth@mvista.com> and Kent Borg.
- * 
- * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2003 Montavista Software, Inc
- * 
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#include <linux/stddef.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/mpc52xx.h>
-
-
-static struct mpc52xx_intr __iomem *intr;
-static struct mpc52xx_sdma __iomem *sdma;
-
-static void
-mpc52xx_ic_disable(unsigned int irq)
-{
-	u32 val;
-
-	if (irq == MPC52xx_IRQ0) {
-		val = in_be32(&intr->ctrl);
-		val &= ~(1 << 11);
-		out_be32(&intr->ctrl, val);
-	}
-	else if (irq < MPC52xx_IRQ1) {
-		BUG();
-	}
-	else if (irq <= MPC52xx_IRQ3) {
-		val = in_be32(&intr->ctrl);
-		val &= ~(1 << (10 - (irq - MPC52xx_IRQ1)));
-		out_be32(&intr->ctrl, val);
-	}
-	else if (irq < MPC52xx_SDMA_IRQ_BASE) {
-		val = in_be32(&intr->main_mask);
-		val |= 1 << (16 - (irq - MPC52xx_MAIN_IRQ_BASE));
-		out_be32(&intr->main_mask, val);
-	}
-	else if (irq < MPC52xx_PERP_IRQ_BASE) {
-		val = in_be32(&sdma->IntMask);
-		val |= 1 << (irq - MPC52xx_SDMA_IRQ_BASE);
-		out_be32(&sdma->IntMask, val);
-	}
-	else {
-		val = in_be32(&intr->per_mask);
-		val |= 1 << (31 - (irq - MPC52xx_PERP_IRQ_BASE));
-		out_be32(&intr->per_mask, val);
-	}
-}
-
-static void
-mpc52xx_ic_enable(unsigned int irq)
-{
-	u32 val;
-
-	if (irq == MPC52xx_IRQ0) {
-		val = in_be32(&intr->ctrl);
-		val |= 1 << 11;
-		out_be32(&intr->ctrl, val);
-	}
-	else if (irq < MPC52xx_IRQ1) {
-		BUG();
-	}
-	else if (irq <= MPC52xx_IRQ3) {
-		val = in_be32(&intr->ctrl);
-		val |= 1 << (10 - (irq - MPC52xx_IRQ1));
-		out_be32(&intr->ctrl, val);
-	}
-	else if (irq < MPC52xx_SDMA_IRQ_BASE) {
-		val = in_be32(&intr->main_mask);
-		val &= ~(1 << (16 - (irq - MPC52xx_MAIN_IRQ_BASE)));
-		out_be32(&intr->main_mask, val);
-	}
-	else if (irq < MPC52xx_PERP_IRQ_BASE) {
-		val = in_be32(&sdma->IntMask);
-		val &= ~(1 << (irq - MPC52xx_SDMA_IRQ_BASE));
-		out_be32(&sdma->IntMask, val);
-	}
-	else {
-		val = in_be32(&intr->per_mask);
-		val &= ~(1 << (31 - (irq - MPC52xx_PERP_IRQ_BASE)));
-		out_be32(&intr->per_mask, val);
-	}
-}
-
-static void
-mpc52xx_ic_ack(unsigned int irq)
-{
-	u32 val;
-
-	/*
-	 * Only some irqs are reset here, others in interrupting hardware.
-	 */
-
-	switch (irq) {
-	case MPC52xx_IRQ0:
-		val = in_be32(&intr->ctrl);
-		val |= 0x08000000;
-		out_be32(&intr->ctrl, val);
-		break;
-	case MPC52xx_CCS_IRQ:
-		val = in_be32(&intr->enc_status);
-		val |= 0x00000400;
-		out_be32(&intr->enc_status, val);
-		break;
-	case MPC52xx_IRQ1:
-		val = in_be32(&intr->ctrl);
-		val |= 0x04000000;
-		out_be32(&intr->ctrl, val);
-		break;
-	case MPC52xx_IRQ2:
-		val = in_be32(&intr->ctrl);
-		val |= 0x02000000;
-		out_be32(&intr->ctrl, val);
-		break;
-	case MPC52xx_IRQ3:
-		val = in_be32(&intr->ctrl);
-		val |= 0x01000000;
-		out_be32(&intr->ctrl, val);
-		break;
-	default:
-		if (irq >= MPC52xx_SDMA_IRQ_BASE
-		    && irq < (MPC52xx_SDMA_IRQ_BASE + MPC52xx_SDMA_IRQ_NUM)) {
-			out_be32(&sdma->IntPend,
-				 1 << (irq - MPC52xx_SDMA_IRQ_BASE));
-		}
-		break;
-	}
-}
-
-static void
-mpc52xx_ic_disable_and_ack(unsigned int irq)
-{
-	mpc52xx_ic_disable(irq);
-	mpc52xx_ic_ack(irq);
-}
-
-static void
-mpc52xx_ic_end(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
-		mpc52xx_ic_enable(irq);
-}
-
-static struct hw_interrupt_type mpc52xx_ic = {
-	.typename	= " MPC52xx  ",
-	.enable		= mpc52xx_ic_enable,
-	.disable	= mpc52xx_ic_disable,
-	.ack		= mpc52xx_ic_disable_and_ack,
-	.end		= mpc52xx_ic_end,
-};
-
-void __init
-mpc52xx_init_irq(void)
-{
-	int i;
-	u32 intr_ctrl;
-
-	/* Remap the necessary zones */
-	intr = ioremap(MPC52xx_PA(MPC52xx_INTR_OFFSET), MPC52xx_INTR_SIZE);
-	sdma = ioremap(MPC52xx_PA(MPC52xx_SDMA_OFFSET), MPC52xx_SDMA_SIZE);
-
-	if ((intr==NULL) || (sdma==NULL))
-		panic("Can't ioremap PIC/SDMA register for init_irq !");
-
-	/* Disable all interrupt sources. */
-	out_be32(&sdma->IntPend, 0xffffffff);	/* 1 means clear pending */
-	out_be32(&sdma->IntMask, 0xffffffff);	/* 1 means disabled */
-	out_be32(&intr->per_mask, 0x7ffffc00);	/* 1 means disabled */
-	out_be32(&intr->main_mask, 0x00010fff);	/* 1 means disabled */
-	intr_ctrl = in_be32(&intr->ctrl);
-	intr_ctrl &=    0x00ff0000;	/* Keeps IRQ[0-3] config */
-	intr_ctrl |=	0x0f000000 |	/* clear IRQ 0-3 */
-			0x00001000 |	/* MEE master external enable */
-			0x00000000 |	/* 0 means disable IRQ 0-3 */
-			0x00000001;	/* CEb route critical normally */
-	out_be32(&intr->ctrl, intr_ctrl);
-
-	/* Zero a bunch of the priority settings.  */
-	out_be32(&intr->per_pri1, 0);
-	out_be32(&intr->per_pri2, 0);
-	out_be32(&intr->per_pri3, 0);
-	out_be32(&intr->main_pri1, 0);
-	out_be32(&intr->main_pri2, 0);
-
-	/* Initialize irq_desc[i].chip's with mpc52xx_ic. */
-	for (i = 0; i < NR_IRQS; i++) {
-		irq_desc[i].chip = &mpc52xx_ic;
-		irq_desc[i].status = IRQ_LEVEL;
-	}
-
-	#define IRQn_MODE(intr_ctrl,irq) (((intr_ctrl) >> (22-(i<<1))) & 0x03)
-	for (i=0 ; i<4 ; i++) {
-		int mode;
-		mode = IRQn_MODE(intr_ctrl,i);
-		if ((mode == 0x1) || (mode == 0x2))
-			irq_desc[i?MPC52xx_IRQ1+i-1:MPC52xx_IRQ0].status = 0;
-	}
-}
-
-int
-mpc52xx_get_irq(void)
-{
-	u32 status;
-	int irq = -1;
-
-	status = in_be32(&intr->enc_status);
-
-	if (status & 0x00000400) {		/* critical */
-		irq = (status >> 8) & 0x3;
-		if (irq == 2)			/* high priority peripheral */
-			goto peripheral;
-		irq += MPC52xx_CRIT_IRQ_BASE;
-	}
-	else if (status & 0x00200000) {		/* main */
-		irq = (status >> 16) & 0x1f;
-		if (irq == 4)			/* low priority peripheral */
-			goto peripheral;
-		irq += MPC52xx_MAIN_IRQ_BASE;
-	}
-	else if (status & 0x20000000) {		/* peripheral */
-peripheral:
-		irq = (status >> 24) & 0x1f;
-		if (irq == 0) {			/* bestcomm */
-			status = in_be32(&sdma->IntPend);
-			irq = ffs(status) + MPC52xx_SDMA_IRQ_BASE-1;
-		}
-		else
-			irq += MPC52xx_PERP_IRQ_BASE;
-	}
-
-	return irq;
-}
-