[ar7] add experimental 2.6.30 support, boot tested

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16242 3c298f89-4303-0410-b956-a3cf2f4a3e73

8 files changed, 430 insertions, 0 deletions

diff --git a/target/linux/ar7/patches/100-board_support.patch b/target/linux/ar7/patches/100-board_support.patch
new file mode 100644
index 000000000..01fe965cd
--- /dev/null
+++ b/target/linux/ar7/patches/100-board_support.patch
@@ -0,0 +1,86 @@
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -19,6 +19,24 @@ choice
+ 	prompt "System type"
+ 	default SGI_IP22
+ 
++config AR7
++	bool "Texas Instruments AR7"
++	select BOOT_ELF32
++	select DMA_NONCOHERENT
++	select CEVT_R4K
++	select CSRC_R4K
++	select IRQ_CPU
++	select NO_EXCEPT_FILL
++	select SWAP_IO_SPACE
++	select SYS_HAS_CPU_MIPS32_R1
++	select SYS_HAS_EARLY_PRINTK
++	select SYS_SUPPORTS_32BIT_KERNEL
++	select SYS_SUPPORTS_KGDB
++	select SYS_SUPPORTS_LITTLE_ENDIAN
++	select SYS_SUPPORTS_BIG_ENDIAN
++	select GENERIC_GPIO
++	select GENERIC_HARDIRQS_NO__DO_IRQ
++
+ config MACH_ALCHEMY
+ 	bool "Alchemy processor based machines"
+ 
+--- a/arch/mips/kernel/traps.c
++++ b/arch/mips/kernel/traps.c
+@@ -1256,9 +1256,22 @@ void *set_except_vector(int n, void *add
+ 
+ 	exception_handlers[n] = handler;
+ 	if (n == 0 && cpu_has_divec) {
+-		*(u32 *)(ebase + 0x200) = 0x08000000 |
+-					  (0x03ffffff & (handler >> 2));
+-		local_flush_icache_range(ebase + 0x200, ebase + 0x204);
++		if ((handler ^ (ebase + 4)) & 0xfc000000) {
++			/* lui k0, 0x0000 */
++			*(u32 *)(ebase + 0x200) = 0x3c1a0000 | (handler >> 16);
++			/* ori k0, 0x0000 */
++			*(u32 *)(ebase + 0x204) =
++					0x375a0000 | (handler & 0xffff);
++			/* jr k0 */
++			*(u32 *)(ebase + 0x208) = 0x03400008;
++			/* nop */
++			*(u32 *)(ebase + 0x20C) = 0x00000000;
++			flush_icache_range(ebase + 0x200, ebase + 0x210);
++		} else {
++			*(u32 *)(ebase + 0x200) =
++				0x08000000 | (0x03ffffff & (handler >> 2));
++			flush_icache_range(ebase + 0x200, ebase + 0x204);
++		}
+ 	}
+ 	return (void *)old_handler;
+ }
+--- a/arch/mips/Makefile
++++ b/arch/mips/Makefile
+@@ -181,6 +181,13 @@ libs-$(CONFIG_SIBYTE_CFE)	+= arch/mips/s
+ #
+ 
+ #
++# Texas Instruments AR7
++#
++core-$(CONFIG_AR7)		+= arch/mips/ar7/
++cflags-$(CONFIG_AR7)		+= -Iinclude/asm-mips/ar7
++load-$(CONFIG_AR7)		+= 0xffffffff94100000
++
++#
+ # Acer PICA 61, Mips Magnum 4000 and Olivetti M700.
+ #
+ core-$(CONFIG_MACH_JAZZ)	+= arch/mips/jazz/
+--- a/arch/mips/include/asm/page.h
++++ b/arch/mips/include/asm/page.h
+@@ -185,8 +185,10 @@ typedef struct { unsigned long pgprot; }
+ #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
+ 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+ 
+-#define UNCAC_ADDR(addr)	((addr) - PAGE_OFFSET + UNCAC_BASE)
+-#define CAC_ADDR(addr)		((addr) - UNCAC_BASE + PAGE_OFFSET)
++#define UNCAC_ADDR(addr)	((addr) - PAGE_OFFSET + UNCAC_BASE +	\
++				 PHYS_OFFSET)
++#define CAC_ADDR(addr)		((addr) - UNCAC_BASE + PAGE_OFFSET -	\
++				 PHYS_OFFSET)
+ 
+ #include <asm-generic/memory_model.h>
+ #include <asm-generic/page.h>
diff --git a/target/linux/ar7/patches/110-flash.patch b/target/linux/ar7/patches/110-flash.patch
new file mode 100644
index 000000000..975eb8368
--- /dev/null
+++ b/target/linux/ar7/patches/110-flash.patch
@@ -0,0 +1,26 @@
+--- a/drivers/mtd/Kconfig
++++ b/drivers/mtd/Kconfig
+@@ -196,6 +196,12 @@ config MTD_MYLOADER_PARTS
+ 	  You will still need the parsing functions to be called by the driver
+ 	  for your particular device. It won't happen automatically.
+ 
++config MTD_AR7_PARTS
++	tristate "TI AR7 partitioning support"
++	depends on MTD_PARTITIONS
++	---help---
++	  TI AR7 partitioning support
++
+ comment "User Modules And Translation Layers"
+ 
+ config MTD_CHAR
+--- a/drivers/mtd/maps/physmap.c
++++ b/drivers/mtd/maps/physmap.c
+@@ -80,7 +80,7 @@ static const char *rom_probe_types[] = {
+ 					"map_rom",
+ 					NULL };
+ #ifdef CONFIG_MTD_PARTITIONS
+-static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL };
++static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", "ar7part", NULL };
+ #endif
+ 
+ static int physmap_flash_probe(struct platform_device *dev)
diff --git a/target/linux/ar7/patches/120-gpio_chrdev.patch b/target/linux/ar7/patches/120-gpio_chrdev.patch
new file mode 100644
index 000000000..fa61e5ccf
--- /dev/null
+++ b/target/linux/ar7/patches/120-gpio_chrdev.patch
@@ -0,0 +1,28 @@
+--- a/drivers/char/Kconfig
++++ b/drivers/char/Kconfig
+@@ -974,6 +974,15 @@ config MWAVE
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called mwave.
+ 
++config AR7_GPIO
++	tristate "TI AR7 GPIO Support"
++	depends on AR7
++	help
++	  Give userspace access to the GPIO pins on the Texas Instruments AR7 
++	  processors.
++
++	  If compiled as a module, it will be called ar7_gpio.
++
+ config SCx200_GPIO
+ 	tristate "NatSemi SCx200 GPIO Support"
+ 	depends on SCx200
+--- a/drivers/char/Makefile
++++ b/drivers/char/Makefile
+@@ -90,6 +90,7 @@ obj-$(CONFIG_HW_RANDOM)		+= hw_random/
+ obj-$(CONFIG_PPDEV)		+= ppdev.o
+ obj-$(CONFIG_NWBUTTON)		+= nwbutton.o
+ obj-$(CONFIG_NWFLASH)		+= nwflash.o
++obj-$(CONFIG_AR7_GPIO)		+= ar7_gpio.o
+ obj-$(CONFIG_SCx200_GPIO)	+= scx200_gpio.o
+ obj-$(CONFIG_PC8736x_GPIO)	+= pc8736x_gpio.o
+ obj-$(CONFIG_NSC_GPIO)		+= nsc_gpio.o
diff --git a/target/linux/ar7/patches/130-vlynq.patch b/target/linux/ar7/patches/130-vlynq.patch
new file mode 100644
index 000000000..12eb53846
--- /dev/null
+++ b/target/linux/ar7/patches/130-vlynq.patch
@@ -0,0 +1,21 @@
+--- a/drivers/Kconfig
++++ b/drivers/Kconfig
+@@ -104,6 +104,8 @@ source "drivers/auxdisplay/Kconfig"
+ 
+ source "drivers/uio/Kconfig"
+ 
++source "drivers/vlynq/Kconfig"
++
+ source "drivers/xen/Kconfig"
+ 
+ source "drivers/staging/Kconfig"
+--- a/drivers/Makefile
++++ b/drivers/Makefile
+@@ -103,6 +103,7 @@ obj-$(CONFIG_DCA)		+= dca/
+ obj-$(CONFIG_HID)		+= hid/
+ obj-$(CONFIG_PPC_PS3)		+= ps3/
+ obj-$(CONFIG_OF)		+= of/
++obj-$(CONFIG_VLYNQ)		+= vlynq/
+ obj-$(CONFIG_SSB)		+= ssb/
+ obj-$(CONFIG_VIRTIO)		+= virtio/
+ obj-$(CONFIG_STAGING)		+= staging/
diff --git a/target/linux/ar7/patches/150-cpmac_not_broken.patch b/target/linux/ar7/patches/150-cpmac_not_broken.patch
new file mode 100644
index 000000000..0c8a20d45
--- /dev/null
+++ b/target/linux/ar7/patches/150-cpmac_not_broken.patch
@@ -0,0 +1,11 @@
+--- a/drivers/net/Kconfig
++++ b/drivers/net/Kconfig
+@@ -1883,7 +1883,7 @@ config SC92031
+ 
+ config CPMAC
+ 	tristate "TI AR7 CPMAC Ethernet support (EXPERIMENTAL)"
+-	depends on NET_ETHERNET && EXPERIMENTAL && AR7 && BROKEN
++	depends on NET_ETHERNET && EXPERIMENTAL && AR7
+ 	select PHYLIB
+ 	help
+ 	  TI AR7 CPMAC Ethernet support
diff --git a/target/linux/ar7/patches/160-vlynq-bus_id_removal.patch b/target/linux/ar7/patches/160-vlynq-bus_id_removal.patch
new file mode 100644
index 000000000..c40837030
--- /dev/null
+++ b/target/linux/ar7/patches/160-vlynq-bus_id_removal.patch
@@ -0,0 +1,148 @@
+--- a/drivers/vlynq/vlynq.c	2009-05-31 20:41:57.000000000 +0200
++++ b/drivers/vlynq/vlynq.c	2009-05-31 22:06:36.000000000 +0200
+@@ -82,6 +82,7 @@
+ static void vlynq_dump_regs(struct vlynq_device *dev)
+ {
+ 	int i;
++
+ 	printk(KERN_DEBUG "VLYNQ local=%p remote=%p\n",
+ 			dev->local, dev->remote);
+ 	for (i = 0; i < 32; i++) {
+@@ -95,6 +96,7 @@
+ static void vlynq_dump_mem(u32 *base, int count)
+ {
+ 	int i;
++
+ 	for (i = 0; i < (count + 3) / 4; i++) {
+ 		if (i % 4 == 0) printk(KERN_DEBUG "\nMEM[0x%04x]:", i * 4);
+ 		printk(KERN_DEBUG " 0x%08x", *(base + i));
+@@ -194,20 +196,24 @@
+ static void vlynq_local_ack(unsigned int irq)
+ {
+ 	struct vlynq_device *dev = get_irq_chip_data(irq);
++
+ 	u32 status = vlynq_reg_read(dev->local->status);
++
+ 	if (printk_ratelimit())
+ 		printk(KERN_DEBUG "%s: local status: 0x%08x\n",
+-		       dev->dev.bus_id, status);
++		       dev_name(&dev->dev), status);
+ 	vlynq_reg_write(dev->local->status, status);
+ }
+ 
+ static void vlynq_remote_ack(unsigned int irq)
+ {
+ 	struct vlynq_device *dev = get_irq_chip_data(irq);
++
+ 	u32 status = vlynq_reg_read(dev->remote->status);
++
+ 	if (printk_ratelimit())
+ 		printk(KERN_DEBUG "%s: remote status: 0x%08x\n",
+-		       dev->dev.bus_id, status);
++		       dev_name(&dev->dev), status);
+ 	vlynq_reg_write(dev->remote->status, status);
+ }
+ 
+@@ -262,7 +268,7 @@
+ 	if (dev->local_irq == dev->remote_irq) {
+ 		printk(KERN_ERR
+ 		       "%s: local vlynq irq should be different from remote\n",
+-		       dev->dev.bus_id);
++		       dev_name(&dev->dev));
+ 		return -EINVAL;
+ 	}
+ 
+@@ -304,7 +310,7 @@
+ 	}
+ 
+ 	if (request_irq(dev->irq, vlynq_irq, IRQF_SHARED, "vlynq", dev)) {
+-		printk(KERN_ERR "%s: request_irq failed\n", dev->dev.bus_id);
++		printk(KERN_ERR "%s: request_irq failed\n", dev_name(&dev->dev));
+ 		return -EAGAIN;
+ 	}
+ 
+@@ -403,7 +409,7 @@
+ 		if (vlynq_linked(dev)) {
+ 			printk(KERN_DEBUG
+ 				"%s: using remote clock divisor %d\n",
+-				dev->dev.bus_id, i - vlynq_rdiv1 + 1);
++				dev_name(&dev->dev), i - vlynq_rdiv1 + 1);
+ 			dev->divisor = i;
+ 			return 0;
+ 		} else {
+@@ -433,7 +439,7 @@
+ 		if (vlynq_linked(dev)) {
+ 			printk(KERN_DEBUG
+ 				"%s: using local clock divisor %d\n",
+-				dev->dev.bus_id, i - vlynq_ldiv1 + 1);
++				dev_name(&dev->dev), i - vlynq_ldiv1 + 1);
+ 			dev->divisor = i;
+ 			return 0;
+ 		} else {
+@@ -460,7 +466,7 @@
+ 
+ 	if (vlynq_linked(dev)) {
+ 		printk(KERN_DEBUG "%s: using external clock\n",
+-			dev->dev.bus_id);
++			dev_name(&dev->dev));
+ 			dev->divisor = vlynq_div_external;
+ 		return 0;
+ 	}
+@@ -507,7 +513,7 @@
+ 		if (vlynq_linked(dev)) {
+ 			printk(KERN_DEBUG
+ 			       "%s: using local clock divisor %d\n",
+-			       dev->dev.bus_id, dev->divisor - vlynq_ldiv1 + 1);
++			       dev_name(&dev->dev), dev->divisor - vlynq_ldiv1 + 1);
+ 			return 0;
+ 		}
+ 		break;
+@@ -521,7 +527,7 @@
+ 		if (vlynq_linked(dev)) {
+ 			printk(KERN_DEBUG
+ 			       "%s: using remote clock divisor %d\n",
+-			       dev->dev.bus_id, dev->divisor - vlynq_rdiv1 + 1);
++			       dev_name(&dev->dev), dev->divisor - vlynq_rdiv1 + 1);
+ 			return 0;
+ 		}
+ 		break;
+@@ -662,8 +668,7 @@
+ 	dev->id = pdev->id;
+ 	dev->dev.bus = &vlynq_bus_type;
+ 	dev->dev.parent = &pdev->dev;
+-	snprintf(dev->dev.bus_id, BUS_ID_SIZE, "vlynq%d", dev->id);
+-	dev->dev.bus_id[BUS_ID_SIZE - 1] = 0;
++	dev_set_name(&dev->dev, "vlynq%d", dev->id);
+ 	dev->dev.platform_data = pdev->dev.platform_data;
+ 	dev->dev.release = vlynq_device_release;
+ 
+@@ -673,9 +678,9 @@
+ 	dev->mem_end = mem_res->end;
+ 
+ 	len = regs_res->end - regs_res->start;
+-	if (!request_mem_region(regs_res->start, len, dev->dev.bus_id)) {
++	if (!request_mem_region(regs_res->start, len, dev_name(&dev->dev))) {
+ 		printk(KERN_ERR "%s: Can't request vlynq registers\n",
+-		       dev->dev.bus_id);
++		       dev_name(&dev->dev));
+ 		result = -ENXIO;
+ 		goto fail_request;
+ 	}
+@@ -683,7 +688,7 @@
+ 	dev->local = ioremap(regs_res->start, len);
+ 	if (!dev->local) {
+ 		printk(KERN_ERR "%s: Can't remap vlynq registers\n",
+-		       dev->dev.bus_id);
++		       dev_name(&dev->dev));
+ 		result = -ENXIO;
+ 		goto fail_remap;
+ 	}
+@@ -702,7 +707,7 @@
+ 	platform_set_drvdata(pdev, dev);
+ 
+ 	printk(KERN_INFO "%s: regs 0x%p, irq %d, mem 0x%p\n",
+-	       dev->dev.bus_id, (void *)dev->regs_start, dev->irq,
++	       dev_name(&dev->dev), (void *)dev->regs_start, dev->irq,
+ 	       (void *)dev->mem_start);
+ 
+ 	dev->dev_id = 0;
diff --git a/target/linux/ar7/patches/500-serial_kludge.patch b/target/linux/ar7/patches/500-serial_kludge.patch
new file mode 100644
index 000000000..cc4e424ec
--- /dev/null
+++ b/target/linux/ar7/patches/500-serial_kludge.patch
@@ -0,0 +1,40 @@
+--- a/drivers/serial/8250.c
++++ b/drivers/serial/8250.c
+@@ -286,6 +286,13 @@ static const struct serial8250_config ua
+ 		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+ 		.flags		= UART_CAP_FIFO,
+ 	},
++	[PORT_AR7] = {
++		.name		= "TI-AR7",
++		.fifo_size	= 16,
++		.tx_loadsz	= 16,
++		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_00,
++		.flags		= UART_CAP_FIFO | UART_CAP_AFE,
++	},
+ };
+ 
+ #if defined (CONFIG_SERIAL_8250_AU1X00)
+@@ -2687,7 +2694,11 @@ static void serial8250_console_putchar(s
+ {
+ 	struct uart_8250_port *up = (struct uart_8250_port *)port;
+ 
++#ifdef CONFIG_AR7
++	wait_for_xmitr(up, BOTH_EMPTY);
++#else
+ 	wait_for_xmitr(up, UART_LSR_THRE);
++#endif
+ 	serial_out(up, UART_TX, ch);
+ }
+ 
+--- a/include/linux/serial_core.h
++++ b/include/linux/serial_core.h
+@@ -41,7 +41,8 @@
+ #define PORT_XSCALE	15
+ #define PORT_RM9000	16	/* PMC-Sierra RM9xxx internal UART */
+ #define PORT_OCTEON	17	/* Cavium OCTEON internal UART */
+-#define PORT_MAX_8250	17	/* max port ID */
++#define PORT_AR7	18	/* TI AR7 internal UART */
++#define PORT_MAX_8250	18	/* max port ID */
+ 
+ /*
+  * ARM specific type numbers.  These are not currently guaranteed
diff --git a/target/linux/ar7/patches/900-cpmac_multiqueue.patch b/target/linux/ar7/patches/900-cpmac_multiqueue.patch
new file mode 100644
index 000000000..3df3d6832
--- /dev/null
+++ b/target/linux/ar7/patches/900-cpmac_multiqueue.patch
@@ -0,0 +1,70 @@
+This patch fixes the network driver cpmac.c for compilation with
+configuration option CONFIG_NETDEVICES_MULTIQUEUE.
+
+These compiler warnings are fixed by the patch:
+drivers/net/cpmac.c: In function 'cpmac_end_xmit':
+drivers/net/cpmac.c:630: warning: passing argument 2 of 'netif_subqueue_stopped' makes pointer from integer without a cast
+drivers/net/cpmac.c:641: warning: passing argument 2 of 'netif_subqueue_stopped' makes pointer from integer without a cast
+drivers/net/cpmac.c: In function 'cpmac_probe':
+drivers/net/cpmac.c:1128: warning: unused variable 'i'
+
+During runtime, the unpatched driver raises a fatal runtime exception.
+This is fixed by calling __netif_subqueue_stopped instead
+of netif_subqueue_stopped, too.
+
+Two additional code parts were modified for CONFIG_NETDEVICES_MULTIQUEUE
+because other drivers do it in the same way.
+
+        Signed-off-by: Stefan Weil <weil@mail.berlios.de>
+
+--- a/drivers/net/cpmac.c
++++ b/drivers/net/cpmac.c
+@@ -615,13 +615,13 @@ static void cpmac_end_xmit(struct net_de
+ 
+ 		dev_kfree_skb_irq(desc->skb);
+ 		desc->skb = NULL;
+-		if (netif_subqueue_stopped(dev, queue))
++		if (__netif_subqueue_stopped(dev, queue))
+ 			netif_wake_subqueue(dev, queue);
+ 	} else {
+ 		if (netif_msg_tx_err(priv) && net_ratelimit())
+ 			printk(KERN_WARNING
+ 			       "%s: end_xmit: spurious interrupt\n", dev->name);
+-		if (netif_subqueue_stopped(dev, queue))
++		if (__netif_subqueue_stopped(dev, queue))
+ 			netif_wake_subqueue(dev, queue);
+ 	}
+ }
+@@ -731,7 +731,6 @@ static void cpmac_clear_tx(struct net_de
+ 
+ static void cpmac_hw_error(struct work_struct *work)
+ {
+-	int i;
+ 	struct cpmac_priv *priv =
+ 		container_of(work, struct cpmac_priv, reset_work);
+ 
+@@ -818,7 +817,6 @@ static irqreturn_t cpmac_irq(int irq, vo
+ 
+ static void cpmac_tx_timeout(struct net_device *dev)
+ {
+-	int i;
+ 	struct cpmac_priv *priv = netdev_priv(dev);
+ 
+ 	spin_lock(&priv->lock);
+@@ -1097,7 +1095,7 @@ static int external_switch;
+ 
+ static int __devinit cpmac_probe(struct platform_device *pdev)
+ {
+-	int rc, phy_id, i;
++	int rc, phy_id;
+ 	char *mdio_bus_id = "0";
+ 	struct resource *mem;
+ 	struct cpmac_priv *priv;
+@@ -1125,6 +1123,7 @@ static int __devinit cpmac_probe(struct 
+ 	}
+ 
+ 	dev = alloc_etherdev_mq(sizeof(*priv), CPMAC_QUEUES);
++	//~ dev = alloc_etherdev(sizeof(*priv));
+ 
+ 	if (!dev) {
+ 		printk(KERN_ERR "cpmac: Unable to allocate net_device\n");