[Armadeus-commitlog] SF.net SVN: armadeus:[863] trunk/target/linux/modules/fpga
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[Armadeus-commitlog] SF.net SVN: armadeus:[863] trunk/target/linux/modules/fpga
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From: <ar...@us...> - 2008-07-29 15:51:19
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Revision: 863
http://armadeus.svn.sourceforge.net/armadeus/?rev=863&view=rev
Author: artemys
Date: 2008-07-29 15:51:26 +0000 (Tue, 29 Jul 2008)
Log Message:
-----------
[LINUX] Add some (temporary) kernel patches to test serial and irq IPs
Added Paths:
-----------
trunk/target/linux/modules/fpga/irq_manager/200-hack-kernel-to-export-some-irq-handling-functions.diff
trunk/target/linux/modules/fpga/serial/200-hack-8250-layer-to-force-no-interrupt-mode.diff
Added: trunk/target/linux/modules/fpga/irq_manager/200-hack-kernel-to-export-some-irq-handling-functions.diff
===================================================================
--- trunk/target/linux/modules/fpga/irq_manager/200-hack-kernel-to-export-some-irq-handling-functions.diff (rev 0)
+++ trunk/target/linux/modules/fpga/irq_manager/200-hack-kernel-to-export-some-irq-handling-functions.diff 2008-07-29 15:51:26 UTC (rev 863)
@@ -0,0 +1,65 @@
+COPY IT IN buildroot/target/device/armadeus/linux/kernel-patches/2.6.23.1/
+diff -urN -X buildroot/build_arm/linux-2.6.23.1/Documentation/dontdiff buildroot/build_arm/linux-2.6.23.1/arch/arm/kernel/irq.c buildroot/build_arm/linux-2.6.23.1.irq_manager/arch/arm/kernel/irq.c
+--- buildroot/build_arm/linux-2.6.23.1/arch/arm/kernel/irq.c 2007-10-12 18:43:44.000000000 +0200
++++ buildroot/build_arm/linux-2.6.23.1.irq_manager/arch/arm/kernel/irq.c 2008-07-24 16:43:52.000000000 +0200
+@@ -152,6 +152,7 @@
+ desc->status &= ~IRQ_NOAUTOEN;
+ spin_unlock_irqrestore(&desc->lock, flags);
+ }
++EXPORT_SYMBOL(set_irq_flags);
+
+ void __init init_IRQ(void)
+ {
+diff -urN -X buildroot/build_arm/linux-2.6.23.1/Documentation/dontdiff buildroot/build_arm/linux-2.6.23.1/include/asm-arm/arch-imx/irqs.h buildroot/build_arm/linux-2.6.23.1.irq_manager/include/asm-arm/arch-imx/irqs.h
+--- buildroot/build_arm/linux-2.6.23.1/include/asm-arm/arch-imx/irqs.h 2008-07-29 17:26:13.000000000 +0200
++++ buildroot/build_arm/linux-2.6.23.1.irq_manager/include/asm-arm/arch-imx/irqs.h 2008-07-24 17:26:17.000000000 +0200
+@@ -112,6 +112,10 @@
+ /* decode irq number to use with IMR(x), ISR(x) and friends */
+ #define IRQ_TO_REG(irq) ((irq - IMX_IRQS) >> 5)
+
+-#define NR_IRQS (IRQ_GPIOD(32) + 1)
++#define IRQ_FPGA_START (IRQ_GPIOD(32) + 1)
++#define IRQ_FPGA(x) (IRQ_FPGA_START + x)
++
++//#define NR_IRQS (IRQ_GPIOD(32) + 1)
++#define NR_IRQS (IRQ_FPGA(16) + 1)
+ #define IRQ_GPIO(x)
+ #endif
+diff -urN -X buildroot/build_arm/linux-2.6.23.1/Documentation/dontdiff buildroot/build_arm/linux-2.6.23.1/kernel/irq/chip.c buildroot/build_arm/linux-2.6.23.1.irq_manager/kernel/irq/chip.c
+--- buildroot/build_arm/linux-2.6.23.1/kernel/irq/chip.c 2007-10-12 18:43:44.000000000 +0200
++++ buildroot/build_arm/linux-2.6.23.1.irq_manager/kernel/irq/chip.c 2008-07-24 16:47:35.000000000 +0200
+@@ -502,6 +502,7 @@
+ out_unlock:
+ spin_unlock(&desc->lock);
+ }
++EXPORT_SYMBOL(handle_edge_irq);
+
+ #ifdef CONFIG_SMP
+ /**
+@@ -581,6 +582,7 @@
+ }
+ spin_unlock_irqrestore(&desc->lock, flags);
+ }
++EXPORT_SYMBOL(__set_irq_handler);
+
+ void
+ set_irq_chip_and_handler(unsigned int irq, struct irq_chip *chip,
+@@ -589,6 +591,7 @@
+ set_irq_chip(irq, chip);
+ __set_irq_handler(irq, handle, 0, NULL);
+ }
++EXPORT_SYMBOL(set_irq_chip_and_handler);
+
+ void
+ set_irq_chip_and_handler_name(unsigned int irq, struct irq_chip *chip,
+diff -urN -X buildroot/build_arm/linux-2.6.23.1/Documentation/dontdiff buildroot/build_arm/linux-2.6.23.1/kernel/irq/handle.c buildroot/build_arm/linux-2.6.23.1.irq_manager/kernel/irq/handle.c
+--- buildroot/build_arm/linux-2.6.23.1/kernel/irq/handle.c 2007-10-12 18:43:44.000000000 +0200
++++ buildroot/build_arm/linux-2.6.23.1.irq_manager/kernel/irq/handle.c 2008-07-24 17:02:07.000000000 +0200
+@@ -59,6 +59,7 @@
+ #endif
+ }
+ };
++EXPORT_SYMBOL(irq_desc);
+
+ /*
+ * What should we do if we get a hw irq event on an illegal vector?
Added: trunk/target/linux/modules/fpga/serial/200-hack-8250-layer-to-force-no-interrupt-mode.diff
===================================================================
--- trunk/target/linux/modules/fpga/serial/200-hack-8250-layer-to-force-no-interrupt-mode.diff (rev 0)
+++ trunk/target/linux/modules/fpga/serial/200-hack-8250-layer-to-force-no-interrupt-mode.diff 2008-07-29 15:51:26 UTC (rev 863)
@@ -0,0 +1,181 @@
+COPY IT IN buildroot/target/device/armadeus/linux/kernel-patches/2.6.23.1/
+diff -urN -X buildroot/build_arm/linux-2.6.23.1/Documentation/dontdiff buildroot/build_arm/linux-2.6.23.1/drivers/serial/8250.c buildroot/build_arm/linux-2.6.23.1.irq_manager/drivers/serial/8250.c
+--- buildroot/build_arm/linux-2.6.23.1/drivers/serial/8250.c 2007-10-12 18:43:44.000000000 +0200
++++ buildroot/build_arm/linux-2.6.23.1.irq_manager/drivers/serial/8250.c 2008-07-23 15:20:08.000000000 +0200
+@@ -58,7 +58,7 @@
+ /*
+ * Debugging.
+ */
+-#if 0
++#if 1
+ #define DEBUG_AUTOCONF(fmt...) printk(fmt)
+ #else
+ #define DEBUG_AUTOCONF(fmt...) do { } while (0)
+@@ -77,7 +77,7 @@
+ * machine types want others as well - they're free
+ * to redefine this in their header file.
+ */
+-#define is_real_interrupt(irq) ((irq) != 0)
++#define is_real_interrupt(irq) ((irq) != 65)
+
+ #ifdef CONFIG_SERIAL_8250_DETECT_IRQ
+ #define CONFIG_SERIAL_DETECT_IRQ 1
+@@ -992,6 +992,8 @@
+ unsigned char save_lcr, save_mcr;
+ unsigned long flags;
+
++ printk("autoconfig\n");
++
+ if (!up->port.iobase && !up->port.mapbase && !up->port.membase)
+ return;
+
+@@ -1170,6 +1172,8 @@
+ unsigned long irqs;
+ int irq;
+
++ printk("autoconfig_irq\n");
++
+ if (up->port.flags & UPF_FOURPORT) {
+ ICP = (up->port.iobase & 0xfe0) | 0x1f;
+ save_ICP = inb_p(ICP);
+@@ -1746,6 +1750,8 @@
+ unsigned char lsr, iir;
+ int retval;
+
++ printk("serial8250_startup\n");
++
+ up->capabilities = uart_config[up->port.type].flags;
+ up->mcr = 0;
+
+@@ -1840,7 +1846,7 @@
+ * kick the UART on a regular basis.
+ */
+ if (iir & UART_IIR_NO_INT) {
+- pr_debug("ttyS%d - using backup timer\n", port->line);
++ printk("ttyS%d - using backup timer\n", port->line);
+ up->timer.function = serial8250_backup_timeout;
+ up->timer.data = (unsigned long)up;
+ mod_timer(&up->timer, jiffies +
+@@ -2195,6 +2201,8 @@
+ unsigned int size = 8 << up->port.regshift;
+ int ret = 0;
+
++ printk("serial8250_request_std_resource: ");
++
+ switch (up->port.iotype) {
+ case UPIO_AU:
+ size = 0x100000;
+@@ -2208,6 +2216,7 @@
+
+ if (!request_mem_region(up->port.mapbase, size, "serial")) {
+ ret = -EBUSY;
++ printk("BUSY");
+ break;
+ }
+
+@@ -2216,6 +2225,7 @@
+ if (!up->port.membase) {
+ release_mem_region(up->port.mapbase, size);
+ ret = -ENOMEM;
++ printk("NOMEM");
+ }
+ }
+ break;
+@@ -2226,6 +2236,7 @@
+ ret = -EBUSY;
+ break;
+ }
++ printk("\n");
+ return ret;
+ }
+
+@@ -2233,6 +2244,7 @@
+ {
+ unsigned int size = 8 << up->port.regshift;
+
++ printk("serial8250_release_std_resource\n");
+ switch (up->port.iotype) {
+ case UPIO_AU:
+ size = 0x100000;
+@@ -2296,6 +2308,8 @@
+ {
+ struct uart_8250_port *up = (struct uart_8250_port *)port;
+
++ printk("serial8250_release_port\n");
++
+ serial8250_release_std_resource(up);
+ if (up->port.type == PORT_RSA)
+ serial8250_release_rsa_resource(up);
+@@ -2306,6 +2320,8 @@
+ struct uart_8250_port *up = (struct uart_8250_port *)port;
+ int ret = 0;
+
++ printk("serial8250_request_port\n");
++
+ ret = serial8250_request_std_resource(up);
+ if (ret == 0 && up->port.type == PORT_RSA) {
+ ret = serial8250_request_rsa_resource(up);
+@@ -2322,6 +2338,7 @@
+ int probeflags = PROBE_ANY;
+ int ret;
+
++ printk("serial8250_config_port 0x%x\n", flags);
+ /*
+ * Find the region that we can probe for. This in turn
+ * tells us whether we can probe for the type of port.
+@@ -2341,8 +2358,9 @@
+
+ if (up->port.type != PORT_RSA && probeflags & PROBE_RSA)
+ serial8250_release_rsa_resource(up);
+- if (up->port.type == PORT_UNKNOWN)
++ if (up->port.type == PORT_UNKNOWN) {
+ serial8250_release_std_resource(up);
++ }
+ }
+
+ static int
+@@ -2661,7 +2679,9 @@
+
+ memset(&port, 0, sizeof(struct uart_port));
+
++ printk("serial8250_probe\n");
+ for (i = 0; p && p->flags != 0; p++, i++) {
++ printk("---\n");
+ port.iobase = p->iobase;
+ port.membase = p->membase;
+ port.irq = p->irq;
+@@ -2764,6 +2784,7 @@
+ if (uart_match_port(&serial8250_ports[i].port, port))
+ return &serial8250_ports[i];
+
++ printk("serial8250_find_match_or_unused: 1\n");
+ /*
+ * We didn't find a matching entry, so look for the first
+ * free entry. We look for one which hasn't been previously
+@@ -2774,6 +2795,8 @@
+ serial8250_ports[i].port.iobase == 0)
+ return &serial8250_ports[i];
+
++ printk("serial8250_find_match_or_unused: 2\n");
++
+ /*
+ * That also failed. Last resort is to find any entry which
+ * doesn't have a real port associated with it.
+@@ -2782,6 +2805,8 @@
+ if (serial8250_ports[i].port.type == PORT_UNKNOWN)
+ return &serial8250_ports[i];
+
++ printk("serial8250_find_match_or_unused: none\n");
++
+ return NULL;
+ }
+
+@@ -2803,6 +2828,8 @@
+ struct uart_8250_port *uart;
+ int ret = -ENOSPC;
+
++ printk("serial8250_register_port\n");
++
+ if (port->uartclk == 0)
+ return -EINVAL;
+
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