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From: barbalace@domain.hid
To: adeos-main@gna.org
Subject: [Adeos-main] [PATCH] ppc mvme5500
Date: Fri,  8 Dec 2006 01:28:40 +0100	[thread overview]
Message-ID: <1165537720.4578b1b879da9@domain.hid> (raw)


I'm working on linux 2.6.14 + ipipe + xenomai2.2.0 (refer to thread
https://mail.gna.org/public/xenomai-help/2006-05/msg00082.html, maybe the same
case-study).

I'm using ipipe patch:
  adeos-ipipe-2.6.14-ppc-1.3-05.patch

this and next patch I tried, doesn't work and some write on the flash, if you
doesn't protect it again write (with on-board jumpers).

I make this simple patch (that I past at the end of the mail).
To use it I recommend to:
1. extract a Vanilla linux kernel
2. patch it with the Motorola patch (BSP)
3. patch it with the ipipe patch (adeos-ipipe-2.6.14-ppc-1.3-05.patch)
4. apply this patch

I test it only with write protect enable on the MVME5500 board; flash and eeprom
were not writeable, ensure this with a cat on /proc/cpuinfo.


regards,
  Antonio Barbalace


diff -u -r linux-2.6.14-ecc.11012006-rfx01-ipipe/arch/ppc/syslib/gt64260_pic.c
linux-2.6.14-ecc.11012006-rfx01-ipipe.rfx01/arch/ppc/syslib/gt64260_pic.c
---
linux-2.6.14-ecc.11012006-rfx01-ipipe/arch/ppc/syslib/gt64260_pic.c	2005-10-28
02:02:08.000000000 +0200
+++
linux-2.6.14-ecc.11012006-rfx01-ipipe.rfx01/arch/ppc/syslib/gt64260_pic.c	2006-12-06
13:50:42.000000000 +0100
@@ -32,6 +32,11 @@
  *    input.
  */

+/*
+ * Modified by: A. Barbalace <barbalac@domain.hid> CNR Consorzio RFX Padova
+ *
+*/
+
 #include <linux/stddef.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
@@ -52,8 +57,19 @@

 /* ========================== forward declaration ========================== */

+static inline void gt64260pic_write(struct mv64x60_handle *bh, u32 offset, u32
val)
+{
+	out_le32(bh->v_base + offset, val);
+}
+
+static inline u32 gt64260pic_read(struct mv64x60_handle *bh, u32 offset)
+{
+	return in_le32(bh->v_base + offset);
+}
+
 static void gt64260_unmask_irq(unsigned int);
 static void gt64260_mask_irq(unsigned int);
+/* static void gt64260_end_irq(unsigned int); */

 /* ========================== local declarations =========================== */

@@ -63,6 +79,7 @@
 	.disable  = gt64260_mask_irq,
 	.ack      = gt64260_mask_irq,
 	.end      = gt64260_unmask_irq,
+	/* .end      = gt64260_end_irq */
 };

 u32 gt64260_irq_base = 0;	/* GT64260 handles the next 96 IRQs from here */
@@ -92,10 +109,10 @@
 	ppc_cached_irq_mask[2] = 0;

 	/* disable all interrupts and clear current interrupts */
-	mv64x60_write(&bh, MV64x60_GPP_INTR_MASK, ppc_cached_irq_mask[2]);
-	mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, 0);
-	mv64x60_write(&bh, GT64260_IC_CPU_INTR_MASK_LO, ppc_cached_irq_mask[0]);
-	mv64x60_write(&bh, GT64260_IC_CPU_INTR_MASK_HI, ppc_cached_irq_mask[1]);
+	gt64260pic_write(&bh, MV64x60_GPP_INTR_MASK, ppc_cached_irq_mask[2]);
+	gt64260pic_write(&bh, MV64x60_GPP_INTR_CAUSE, 0);
+	gt64260pic_write(&bh, GT64260_IC_CPU_INTR_MASK_LO, ppc_cached_irq_mask[0]);
+	gt64260pic_write(&bh, GT64260_IC_CPU_INTR_MASK_HI, ppc_cached_irq_mask[1]);

 	/* use the gt64260 for all (possible) interrupt sources */
 	for (i = gt64260_irq_base; i < (gt64260_irq_base + 96); i++)
@@ -126,18 +143,18 @@
 	int irq;
 	int irq_gpp;

-	irq = mv64x60_read(&bh, GT64260_IC_MAIN_CAUSE_LO);
+	irq = gt64260pic_read(&bh, GT64260_IC_MAIN_CAUSE_LO);
 	irq = __ilog2((irq & 0x3dfffffe) & ppc_cached_irq_mask[0]);

 	if (irq == -1) {
-		irq = mv64x60_read(&bh, GT64260_IC_MAIN_CAUSE_HI);
+		irq = gt64260pic_read(&bh, GT64260_IC_MAIN_CAUSE_HI);
 		irq = __ilog2((irq & 0x0f000db7) & ppc_cached_irq_mask[1]);

 		if (irq == -1)
 			irq = -2; /* bogus interrupt, should never happen */
 		else {
 			if (irq >= 24) {
-				irq_gpp = mv64x60_read(&bh,
+				irq_gpp = gt64260pic_read(&bh,
 					MV64x60_GPP_INTR_CAUSE);
 				irq_gpp = __ilog2(irq_gpp &
 					ppc_cached_irq_mask[2]);
@@ -146,7 +163,7 @@
 					irq = -2;
 				else {
 					irq = irq_gpp + 64;
-					mv64x60_write(&bh,
+					gt64260pic_write(&bh,
 						MV64x60_GPP_INTR_CAUSE,
 						~(1 << (irq - 64)));
 				}
@@ -155,7 +172,7 @@
 		}
 	}

-	(void)mv64x60_read(&bh, MV64x60_GPP_INTR_CAUSE);
+	(void)gt64260pic_read(&bh, MV64x60_GPP_INTR_CAUSE);

 	if (irq < 0)
 		return (irq);
@@ -183,19 +200,23 @@

 	if (irq > 31)
 		if (irq > 63) /* unmask GPP irq */
-			mv64x60_write(&bh, MV64x60_GPP_INTR_MASK,
-				ppc_cached_irq_mask[2] |= (1 << (irq - 64)));
+			gt64260pic_write(&bh, MV64x60_GPP_INTR_MASK, ppc_cached_irq_mask[2] |= (1 <<
(irq - 64)));
 		else /* mask high interrupt register */
-			mv64x60_write(&bh, GT64260_IC_CPU_INTR_MASK_HI,
-				ppc_cached_irq_mask[1] |= (1 << (irq - 32)));
+			gt64260pic_write(&bh, GT64260_IC_CPU_INTR_MASK_HI, ppc_cached_irq_mask[1] |=
(1 << (irq - 32)));
 	else /* mask low interrupt register */
-		mv64x60_write(&bh, GT64260_IC_CPU_INTR_MASK_LO,
-			ppc_cached_irq_mask[0] |= (1 << irq));
+		gt64260pic_write(&bh, GT64260_IC_CPU_INTR_MASK_LO, ppc_cached_irq_mask[0] |=
(1 << irq));

-	(void)mv64x60_read(&bh, MV64x60_GPP_INTR_MASK);
+	(void)gt64260pic_read(&bh, MV64x60_GPP_INTR_MASK);
 	return;
 }
+/*static void
+gt64260_end_irq(unsigned int irq)
+{
+	if (!ipipe_root_domain_p || (!irq_desc[irq].status & (IRQ_DISABLED |
IRQ_INPROGRESS)))
+		gt64260_unmask_irq(irq);

+	return;
+}*/
 /* gt64260_mask_irq()
  *
  *  This function disables the requested interrupt.
@@ -216,16 +237,16 @@

 	if (irq > 31)
 		if (irq > 63) /* mask GPP irq */
-			mv64x60_write(&bh, MV64x60_GPP_INTR_MASK,
+			gt64260pic_write(&bh, MV64x60_GPP_INTR_MASK,
 				ppc_cached_irq_mask[2] &= ~(1 << (irq - 64)));
 		else /* mask high interrupt register */
-			mv64x60_write(&bh, GT64260_IC_CPU_INTR_MASK_HI,
+			gt64260pic_write(&bh, GT64260_IC_CPU_INTR_MASK_HI,
 				ppc_cached_irq_mask[1] &= ~(1 << (irq - 32)));
 	else /* mask low interrupt register */
-		mv64x60_write(&bh, GT64260_IC_CPU_INTR_MASK_LO,
+		gt64260pic_write(&bh, GT64260_IC_CPU_INTR_MASK_LO,
 			ppc_cached_irq_mask[0] &= ~(1 << irq));

-	(void)mv64x60_read(&bh, MV64x60_GPP_INTR_MASK);
+	(void)gt64260pic_read(&bh, MV64x60_GPP_INTR_MASK);
 	return;
 }

@@ -234,19 +255,19 @@
 {
 	printk(KERN_ERR "gt64260_cpu_error_int_handler: %s 0x%08x\n",
 		"Error on CPU interface - Cause regiser",
-		mv64x60_read(&bh, MV64x60_CPU_ERR_CAUSE));
+		gt64260pic_read(&bh, MV64x60_CPU_ERR_CAUSE));
 	printk(KERN_ERR "\tCPU error register dump:\n");
 	printk(KERN_ERR "\tAddress low  0x%08x\n",
-	       mv64x60_read(&bh, MV64x60_CPU_ERR_ADDR_LO));
+	       gt64260pic_read(&bh, MV64x60_CPU_ERR_ADDR_LO));
 	printk(KERN_ERR "\tAddress high 0x%08x\n",
-	       mv64x60_read(&bh, MV64x60_CPU_ERR_ADDR_HI));
+	       gt64260pic_read(&bh, MV64x60_CPU_ERR_ADDR_HI));
 	printk(KERN_ERR "\tData low     0x%08x\n",
-	       mv64x60_read(&bh, MV64x60_CPU_ERR_DATA_LO));
+	       gt64260pic_read(&bh, MV64x60_CPU_ERR_DATA_LO));
 	printk(KERN_ERR "\tData high    0x%08x\n",
-	       mv64x60_read(&bh, MV64x60_CPU_ERR_DATA_HI));
+	       gt64260pic_read(&bh, MV64x60_CPU_ERR_DATA_HI));
 	printk(KERN_ERR "\tParity       0x%08x\n",
-	       mv64x60_read(&bh, MV64x60_CPU_ERR_PARITY));
-	mv64x60_write(&bh, MV64x60_CPU_ERR_CAUSE, 0);
+	       gt64260pic_read(&bh, MV64x60_CPU_ERR_PARITY));
+	gt64260pic_write(&bh, MV64x60_CPU_ERR_CAUSE, 0);
 	return IRQ_HANDLED;
 }

@@ -257,36 +278,36 @@
 	unsigned int pci_bus = (unsigned int)dev_id;

 	if (pci_bus == 0) {	/* Error on PCI 0 */
-		val = mv64x60_read(&bh, MV64x60_PCI0_ERR_CAUSE);
+		val = gt64260pic_read(&bh, MV64x60_PCI0_ERR_CAUSE);
 		printk(KERN_ERR "%s: Error in PCI %d Interface\n",
 			"gt64260_pci_error_int_handler", pci_bus);
 		printk(KERN_ERR "\tPCI %d error register dump:\n", pci_bus);
 		printk(KERN_ERR "\tCause register 0x%08x\n", val);
 		printk(KERN_ERR "\tAddress Low    0x%08x\n",
-		       mv64x60_read(&bh, MV64x60_PCI0_ERR_ADDR_LO));
+		       gt64260pic_read(&bh, MV64x60_PCI0_ERR_ADDR_LO));
 		printk(KERN_ERR "\tAddress High   0x%08x\n",
-		       mv64x60_read(&bh, MV64x60_PCI0_ERR_ADDR_HI));
+		       gt64260pic_read(&bh, MV64x60_PCI0_ERR_ADDR_HI));
 		printk(KERN_ERR "\tAttribute      0x%08x\n",
-		       mv64x60_read(&bh, MV64x60_PCI0_ERR_DATA_LO));
+		       gt64260pic_read(&bh, MV64x60_PCI0_ERR_DATA_LO));
 		printk(KERN_ERR "\tCommand        0x%08x\n",
-		       mv64x60_read(&bh, MV64x60_PCI0_ERR_CMD));
-		mv64x60_write(&bh, MV64x60_PCI0_ERR_CAUSE, ~val);
+		       gt64260pic_read(&bh, MV64x60_PCI0_ERR_CMD));
+		gt64260pic_write(&bh, MV64x60_PCI0_ERR_CAUSE, ~val);
 	}
 	if (pci_bus == 1) {	/* Error on PCI 1 */
-		val = mv64x60_read(&bh, MV64x60_PCI1_ERR_CAUSE);
+		val = gt64260pic_read(&bh, MV64x60_PCI1_ERR_CAUSE);
 		printk(KERN_ERR "%s: Error in PCI %d Interface\n",
 			"gt64260_pci_error_int_handler", pci_bus);
 		printk(KERN_ERR "\tPCI %d error register dump:\n", pci_bus);
 		printk(KERN_ERR "\tCause register 0x%08x\n", val);
 		printk(KERN_ERR "\tAddress Low    0x%08x\n",
-		       mv64x60_read(&bh, MV64x60_PCI1_ERR_ADDR_LO));
+		       gt64260pic_read(&bh, MV64x60_PCI1_ERR_ADDR_LO));
 		printk(KERN_ERR "\tAddress High   0x%08x\n",
-		       mv64x60_read(&bh, MV64x60_PCI1_ERR_ADDR_HI));
+		       gt64260pic_read(&bh, MV64x60_PCI1_ERR_ADDR_HI));
 		printk(KERN_ERR "\tAttribute      0x%08x\n",
-		       mv64x60_read(&bh, MV64x60_PCI1_ERR_DATA_LO));
+		       gt64260pic_read(&bh, MV64x60_PCI1_ERR_DATA_LO));
 		printk(KERN_ERR "\tCommand        0x%08x\n",
-		       mv64x60_read(&bh, MV64x60_PCI1_ERR_CMD));
-		mv64x60_write(&bh, MV64x60_PCI1_ERR_CAUSE, ~val);
+		       gt64260pic_read(&bh, MV64x60_PCI1_ERR_CMD));
+		gt64260pic_write(&bh, MV64x60_PCI1_ERR_CAUSE, ~val);
 	}
 	return IRQ_HANDLED;
 }
@@ -301,8 +322,8 @@
 		gt64260_cpu_error_int_handler, SA_INTERRUPT, CPU_INTR_STR, 0)))
 		printk(KERN_WARNING "Can't register cpu error handler: %d", rc);

-	mv64x60_write(&bh, MV64x60_CPU_ERR_MASK, 0);
-	mv64x60_write(&bh, MV64x60_CPU_ERR_MASK, 0x000000fe);
+	gt64260pic_write(&bh, MV64x60_CPU_ERR_MASK, 0);
+	gt64260pic_write(&bh, MV64x60_CPU_ERR_MASK, 0x000000fe);

 	/* Register PCI 0 error interrupt handler */
 	if ((rc = request_irq(MV64360_IRQ_PCI0, gt64260_pci_error_int_handler,
@@ -310,8 +331,8 @@
 		printk(KERN_WARNING "Can't register pci 0 error handler: %d",
 			rc);

-	mv64x60_write(&bh, MV64x60_PCI0_ERR_MASK, 0);
-	mv64x60_write(&bh, MV64x60_PCI0_ERR_MASK, 0x003c0c24);
+	gt64260pic_write(&bh, MV64x60_PCI0_ERR_MASK, 0);
+	gt64260pic_write(&bh, MV64x60_PCI0_ERR_MASK, 0x003c0c24);

 	/* Register PCI 1 error interrupt handler */
 	if ((rc = request_irq(MV64360_IRQ_PCI1, gt64260_pci_error_int_handler,
@@ -319,10 +340,11 @@
 		printk(KERN_WARNING "Can't register pci 1 error handler: %d",
 			rc);

-	mv64x60_write(&bh, MV64x60_PCI1_ERR_MASK, 0);
-	mv64x60_write(&bh, MV64x60_PCI1_ERR_MASK, 0x003c0c24);
+	gt64260pic_write(&bh, MV64x60_PCI1_ERR_MASK, 0);
+	gt64260pic_write(&bh, MV64x60_PCI1_ERR_MASK, 0x003c0c24);

 	return 0;
 }

 arch_initcall(gt64260_register_hdlrs);
+
diff -u -r linux-2.6.14-ecc.11012006-rfx01-ipipe/arch/ppc/syslib/i8259.c
linux-2.6.14-ecc.11012006-rfx01-ipipe.rfx01/arch/ppc/syslib/i8259.c
--- linux-2.6.14-ecc.11012006-rfx01-ipipe/arch/ppc/syslib/i8259.c	2005-10-28
02:02:08.000000000 +0200
+++
linux-2.6.14-ecc.11012006-rfx01-ipipe.rfx01/arch/ppc/syslib/i8259.c	2006-12-06
14:06:19.000000000 +0100
@@ -157,7 +157,8 @@
 	.flags = IORESOURCE_BUSY,
 };

-static struct irqaction i8259_irqaction = {
+//static struct irqaction i8259_irqaction = {		// IPIPE: remove static
declaration like other IPIPE patch
+struct irqaction i8259_irqaction = {
 	.handler = no_action,
 	.flags = SA_INTERRUPT,
 	.mask = CPU_MASK_NONE,


Antonio Barbalace
CNR Consorzio RFX - Associazione EURATOM/ENEA sulla Fusione
Corso Stati Uniti, 4
35127 Padova
ITALY


             reply	other threads:[~2006-12-08  0:28 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-08  0:28 barbalace [this message]
2006-12-08 11:57 ` [Adeos-main] [PATCH] ppc mvme5500 Wolfgang Grandegger
2006-12-08 16:35   ` barbalace
2006-12-08 20:38     ` Wolfgang Grandegger
     [not found]       ` <1165665886.457aa65e2c26e@domain.hid>
     [not found]         ` <457AAEB9.20403@domain.hid>
     [not found]           ` <1165834501.457d390514d36@domain.hid>
     [not found]             ` <457D57B4.3000802@domain.hid>
     [not found]               ` <1165843368.457d5ba8692bd@domain.hid>
2006-12-11 13:43                 ` [Xenomai-help] " Wolfgang Grandegger
2006-12-11 14:32                   ` Jan Kiszka
2006-12-11 17:55                     ` barbalace
2006-12-11 18:10                       ` Jan Kiszka

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