add ar7-2.6 fixes by Stefan Weil

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7487 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ar7-2.6/files/arch/mips/ar7/clock.c

@@ -174,10 +174,12 @@ static int tnetd7300_get_clock(u32 shift, struct tnetd7300_clock *clock,
 {
 	int product;
 	int base_clock = ar7_ref_clock;
-	int prediv = ((clock->ctrl & PREDIV_MASK) >> PREDIV_SHIFT) + 1;
+	u32 ctrl = clock->ctrl;
-	int postdiv = (clock->ctrl & POSTDIV_MASK) + 1;
+	u32 pll = clock->pll;
+	int prediv = ((ctrl & PREDIV_MASK) >> PREDIV_SHIFT) + 1;
+	int postdiv = (ctrl & POSTDIV_MASK) + 1;
 	int divisor = prediv * postdiv;
-	int mul = ((clock->pll & MUL_MASK) >> MUL_SHIFT) + 1;
+	int mul = ((pll & MUL_MASK) >> MUL_SHIFT) + 1;
 
 	switch ((*bootcr & (BOOT_PLL_SOURCE_MASK << shift)) >> shift) {
 	case BOOT_PLL_SOURCE_BUS:
@@ -197,10 +199,10 @@ static int tnetd7300_get_clock(u32 shift, struct tnetd7300_clock *clock,
 	if (*bootcr & BOOT_PLL_BYPASS)
 		return base_clock / divisor;
 
-	if ((clock->pll & PLL_MODE_MASK) == 0)
+	if ((pll & PLL_MODE_MASK) == 0)
 		return (base_clock >> (mul / 16 + 1)) / divisor;
 
-	if ((clock->pll & (PLL_NDIV | PLL_DIV)) == (PLL_NDIV | PLL_DIV)) {
+	if ((pll & (PLL_NDIV | PLL_DIV)) == (PLL_NDIV | PLL_DIV)) {
 		product = (mul & 1) ? 
 			(base_clock * mul) >> 1 :
 			(base_clock * (mul - 1)) >> 2;

target/linux/ar7-2.6/files/arch/mips/ar7/irq.c

@@ -33,17 +33,17 @@
 
 #define REG_OFFSET(irq, reg) ((irq) / 32 * 0x4 + reg * 0x10)
 #define SEC_REG_OFFSET(reg) (EXCEPT_OFFSET + reg * 0x8)
-#define SR_OFFSET  (SEC_REG_OFFSET(0))
+#define SEC_SR_OFFSET  (SEC_REG_OFFSET(0))      /* 0x80 */
-#define CR_OFFSET(irq)  (REG_OFFSET(irq, 1))
+#define CR_OFFSET(irq)  (REG_OFFSET(irq, 1))    /* 0x10 */
-#define SEC_CR_OFFSET  (SEC_REG_OFFSET(1))
+#define SEC_CR_OFFSET  (SEC_REG_OFFSET(1))      /* 0x88 */
-#define ESR_OFFSET(irq) (REG_OFFSET(irq, 2))
+#define ESR_OFFSET(irq) (REG_OFFSET(irq, 2))    /* 0x20 */
-#define SEC_ESR_OFFSET  (SEC_REG_OFFSET(2))
+#define SEC_ESR_OFFSET  (SEC_REG_OFFSET(2))     /* 0x90 */
-#define ECR_OFFSET(irq) (REG_OFFSET(irq, 3))
+#define ECR_OFFSET(irq) (REG_OFFSET(irq, 3))    /* 0x30 */
-#define SEC_ECR_OFFSET  (SEC_REG_OFFSET(3))
+#define SEC_ECR_OFFSET  (SEC_REG_OFFSET(3))     /* 0x98 */
 #define PIR_OFFSET      (0x40)
 #define MSR_OFFSET      (0x44)
-#define PM_OFFSET(irq)  (REG_OFFSET(irq, 5))
+#define PM_OFFSET(irq)  (REG_OFFSET(irq, 5))    /* 0x50 */
-#define TM_OFFSET(irq)  (REG_OFFSET(irq, 6))
+#define TM_OFFSET(irq)  (REG_OFFSET(irq, 6))    /* 0x60 */
 
 #define REG(addr) (*(volatile u32 *)(KSEG1ADDR(AR7_REGS_IRQ) + addr))
 
@@ -59,6 +59,7 @@ static void ar7_irq_init(int base);
 static int ar7_irq_base;
 
 static struct irq_chip ar7_irq_type = {
+	.typename = "AR7",
 	.name = "AR7",
 	.unmask = ar7_unmask_irq,
 	.mask = ar7_mask_irq,
@@ -174,7 +175,7 @@ static irqreturn_t ar7_secondary_cascade(int interrupt, void *dev)
 	int irq = 0, i;
 	unsigned long status;
 
-	status = REG(SR_OFFSET);
+	status = REG(SEC_SR_OFFSET);
 	if (unlikely(!status)) {
 		spurious_interrupt();
 		return IRQ_NONE;

target/linux/ar7-2.6/files/arch/mips/ar7/prom.c

@@ -246,7 +246,6 @@ static void __init console_config(void)
 
 #ifdef CONFIG_KGDB
 	strcat(prom_getcmdline(), " console=kgdb");
-	prom_printf("Please connect GDB to this port\n");
 	kgdb_enabled = 1;
 	return;
 #endif

target/linux/ar7-2.6/files/arch/mips/ar7/vlynq.c

@@ -196,10 +196,11 @@ static irqreturn_t vlynq_irq(int irq, void *dev_id)
 }
 
 static struct irq_chip vlynq_irq_chip = {
+        .typename = "VLYNQ",
         .name = "vlynq",
         .unmask = vlynq_irq_unmask,
         .mask = vlynq_irq_mask,
-	.set_type = vlynq_irq_type,
+        .set_type = vlynq_irq_type,
 };
 
 static int vlynq_setup_irq(struct vlynq_device *dev)
@@ -235,7 +236,7 @@ static int vlynq_setup_irq(struct vlynq_device *dev)
 		dev->remote->int_device[i >> 2] = 0;
 	}
 
-	if (request_irq(dev->irq, vlynq_irq, SA_SHIRQ, "AR7 VLYNQ", dev)) {
+	if (request_irq(dev->irq, vlynq_irq, SA_SHIRQ, "vlynq", dev)) {
 		printk("%s: request_irq failed\n", dev->dev.bus_id);
 		return -EAGAIN;
 	}

target/linux/ar7-2.6/files/drivers/net/cpmac.c

@@ -223,6 +223,7 @@ static void cpmac_hw_init(struct net_device *dev);
 static int cpmac_stop(struct net_device *dev);
 static int cpmac_open(struct net_device *dev);
 
+#undef CPMAC_DEBUG
 #define CPMAC_LOW_THRESH 32
 #define CPMAC_ALLOC_SIZE 64
 #define CPMAC_SKB_SIZE 1518
@@ -238,6 +239,18 @@ static void cpmac_dump_regs(u32 *base, int count)
 	}
 	printk("\n");
 }
+
+static const char *cpmac_dump_buf(const uint8_t * buf, unsigned size)
+{
+    static char buffer[3 * 25 + 1];
+    char *p = &buffer[0];
+    if (size > 20)
+        size = 20;
+    while (size-- > 0) {
+        p += sprintf(p, " %02x", *buf++);
+    }
+    return buffer;
+}
 #endif
 
 static int cpmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
@@ -446,7 +459,11 @@ static void cpmac_rx(struct net_device *dev)
 
 	desc = priv->rx_head;
 	dma_cache_inv((u32)desc, 16);
-	
+#ifdef CPMAC_DEBUG
+                printk(KERN_DEBUG "%s: len=%d, %s\n", __func__, pkt->datalen,
+                      cpmac_dump_buf(data, pkt->datalen));
+#endif
+
 	while ((desc->dataflags & CPMAC_OWN) == 0) {
 		skb = cpmac_rx_one(dev, priv, desc);
 		if (likely(skb)) {
@@ -558,6 +575,9 @@ static int cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct cpmac_priv *priv = netdev_priv(dev);
 
 	len = skb->len;
+#ifdef CPMAC_DEBUG
+        printk(KERN_DEBUG "%s: len=%d\n", __func__, len); //cpmac_dump_buf(const uint8_t * buf, unsigned size)
+#endif
 	if (unlikely(len < ETH_ZLEN)) {
 		if (unlikely(skb_padto(skb, ETH_ZLEN))) {
 			if (printk_ratelimit())
@@ -689,7 +709,9 @@ static irqreturn_t cpmac_irq(int irq, void *dev_id)
 	priv->regs->mac_eoi_vector = 0;
 
 	if (unlikely(status & (INTST_HOST | INTST_STATUS))) {
-		printk(KERN_ERR "%s: hw error, resetting...\n", dev->name);
+		if (printk_ratelimit()) {
+			printk(KERN_ERR "%s: hw error, resetting...\n", dev->name);
+		}
 		spin_lock(&priv->lock);
 		phy_stop(priv->phy);
 		cpmac_reset(dev);

target/linux/ar7-2.6/files/include/asm-mips/ar7/spaces.h

@@ -19,8 +19,8 @@
  * This handles the memory map.
  * We handle pages at KSEG0 for kernels with 32 bit address space.
  */
-#define PAGE_OFFSET		0x80000000UL
+#define PAGE_OFFSET		0x94000000UL
-#define PHYS_OFFSET 	0x14000000UL
+#define PHYS_OFFSET		0x14000000UL
 
 /*
  * Memory above this physical address will be considered highmem.

target/linux/ar7-2.6/patches/100-board_support.patch

@@ -1,7 +1,7 @@
 diff -Nru linux-2.6.19.2/arch/mips/Kconfig linux-ar7/arch/mips/Kconfig
 --- linux-2.6.19.2/arch/mips/Kconfig	2006-12-12 02:32:53.000000000 +0700
 +++ linux-ar7/arch/mips/Kconfig	2007-01-29 21:52:21.000000000 +0700
-@@ -12,6 +12,19 @@
+@@ -16,6 +16,20 @@
  	prompt "System type"
  	default SGI_IP22
  
@@ -13,6 +13,7 @@ diff -Nru linux-2.6.19.2/arch/mips/Kconfig linux-ar7/arch/mips/Kconfig
 +	select IRQ_CPU
 +	select SWAP_IO_SPACE
 +	select SYS_HAS_CPU_MIPS32_R1
++	select SYS_HAS_EARLY_PRINTK
 +	select SYS_SUPPORTS_32BIT_KERNEL
 +	select SYS_SUPPORTS_LITTLE_ENDIAN
 +	select NEED_MULTIPLE_NODES

target/linux/generic-2.6/patches/011-mips_boot.patch

@@ -1,7 +1,7 @@
 diff -urN linux-2.6.21.1.old/arch/mips/kernel/head.S linux-2.6.21.1.dev/arch/mips/kernel/head.S
 --- linux-2.6.21.1.old/arch/mips/kernel/head.S	2007-04-27 23:49:26.000000000 +0200
 +++ linux-2.6.21.1.dev/arch/mips/kernel/head.S	2007-05-26 19:46:49.061952736 +0200
-@@ -129,6 +129,10 @@
+@@ -129,11 +129,15 @@
  #endif
  	.endm
  
@@ -12,3 +12,9 @@ diff -urN linux-2.6.21.1.old/arch/mips/kernel/head.S linux-2.6.21.1.dev/arch/mip
  	/*
  	 * Reserved space for exception handlers.
  	 * Necessary for machines which link their kernels at KSEG0.
+ 	 */
+-	.fill	0x400
++	.align 10
+ 
+ EXPORT(stext)					# used for profiling
+ EXPORT(_stext)