[MIPS] PNX8550 fixups

This patch fixes the compilation errors on PNX8550 and hard-to-track
bug in interrupt handling.
It also corresponds to the latest changes in PNX8550 serial driver.

Signed-off-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -440,13 +440,11 @@ config MIPS_XXS1500
 
 config PNX8550_V2PCI
 	bool "Philips PNX8550 based Viper2-PCI board"
-	depends on BROKEN
 	select PNX8550
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config PNX8550_JBS
 	bool "Philips PNX8550 based JBS board"
-	depends on BROKEN
 	select PNX8550
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 

arch/mips/philips/pnx8550/common/int.c

@@ -90,7 +90,7 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
 	unsigned int pending = read_c0_status() & read_c0_cause();
 
 	if (pending & STATUSF_IP2)
-		do_IRQ(2, regs);
+		hw0_irqdispatch(2, regs);
 	else if (pending & STATUSF_IP7) {
 		if (read_c0_config7() & 0x01c0)
 			timer_irqdispatch(7, regs);

arch/mips/philips/pnx8550/common/platform.c

@@ -17,15 +17,13 @@
 #include <linux/init.h>
 #include <linux/resource.h>
 #include <linux/serial.h>
-#include <linux/serial_ip3106.h>
+#include <linux/serial_pnx8xxx.h>
 #include <linux/platform_device.h>
 
 #include <int.h>
 #include <usb.h>
 #include <uart.h>
 
-extern struct uart_ops ip3106_pops;
-
 static struct resource pnx8550_usb_ohci_resources[] = {
 	[0] = {
 		.start		= PNX8550_USB_OHCI_OP_BASE,
@@ -63,31 +61,29 @@ static struct resource pnx8550_uart_resources[] = {
 	},
 };
 
-struct ip3106_port ip3106_ports[] = {
+struct pnx8xxx_port pnx8xxx_ports[] = {
 	[0] = {
 		.port   = {
-			.type		= PORT_IP3106,
+			.type		= PORT_PNX8XXX,
 			.iotype		= UPIO_MEM,
 			.membase	= (void __iomem *)PNX8550_UART_PORT0,
 			.mapbase	= PNX8550_UART_PORT0,
 			.irq		= PNX8550_UART_INT(0),
 			.uartclk	= 3692300,
 			.fifosize	= 16,
-			.ops		= &ip3106_pops,
 			.flags		= UPF_BOOT_AUTOCONF,
 			.line		= 0,
 		},
 	},
 	[1] = {
 		.port   = {
-			.type		= PORT_IP3106,
+			.type		= PORT_PNX8XXX,
 			.iotype		= UPIO_MEM,
 			.membase	= (void __iomem *)PNX8550_UART_PORT1,
 			.mapbase	= PNX8550_UART_PORT1,
 			.irq		= PNX8550_UART_INT(1),
 			.uartclk	= 3692300,
 			.fifosize	= 16,
-			.ops		= &ip3106_pops,
 			.flags		= UPF_BOOT_AUTOCONF,
 			.line		= 1,
 		},
@@ -111,12 +107,12 @@ static struct platform_device pnx8550_usb_ohci_device = {
 };
 
 static struct platform_device pnx8550_uart_device = {
-	.name		= "ip3106-uart",
+	.name		= "pnx8xxx-uart",
 	.id		= -1,
 	.dev = {
 		.dma_mask		= &uart_dmamask,
 		.coherent_dma_mask	= 0xffffffff,
-		.platform_data = ip3106_ports,
+		.platform_data = pnx8xxx_ports,
 	},
 	.num_resources	= ARRAY_SIZE(pnx8550_uart_resources),
 	.resource	= pnx8550_uart_resources,

arch/mips/philips/pnx8550/common/prom.c

@@ -13,7 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/string.h>
-#include <linux/serial_ip3106.h>
+#include <linux/serial_pnx8xxx.h>
 
 #include <asm/bootinfo.h>
 #include <uart.h>
@@ -126,7 +126,7 @@ void prom_putchar(char c)
 {
 	if (pnx8550_console_port != -1) {
 		/* Wait until FIFO not full */
-		while( ((ip3106_fifo(UART_BASE, pnx8550_console_port) & IP3106_UART_FIFO_TXFIFO) >> 16) >= 16)
+		while( ((ip3106_fifo(UART_BASE, pnx8550_console_port) & PNX8XXX_UART_FIFO_TXFIFO) >> 16) >= 16)
 			;
 		/* Send one char */
 		ip3106_fifo(UART_BASE, pnx8550_console_port) = c;

arch/mips/philips/pnx8550/common/setup.c

@@ -24,7 +24,7 @@
 #include <linux/mm.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
-#include <linux/serial_ip3106.h>
+#include <linux/serial_pnx8xxx.h>
 #include <linux/pm.h>
 
 #include <asm/cpu.h>
@@ -56,7 +56,7 @@ extern char *prom_getcmdline(void);
 
 struct resource standard_io_resources[] = {
 	{
-		.start	= .0x00,
+		.start	= 0x00,
 		.end	= 0x1f,
 		.name	= "dma1",
 		.flags	= IORESOURCE_BUSY
@@ -144,7 +144,7 @@ void __init plat_mem_setup(void)
 		/* We must initialize the UART (console) before prom_printf */
 		/* Set LCR to 8-bit and BAUD to 38400 (no 5)                */
 		ip3106_lcr(UART_BASE, pnx8550_console_port) =
-			IP3106_UART_LCR_8BIT;
+			PNX8XXX_UART_LCR_8BIT;
 		ip3106_baud(UART_BASE, pnx8550_console_port) = 5;
 	}
 

include/asm-mips/mach-pnx8550/uart.h

@@ -13,4 +13,18 @@
 #define PNX8550_UART_INT(x)		(PNX8550_INT_GIC_MIN+19+x)
 #define IRQ_TO_UART(x)			(x-PNX8550_INT_GIC_MIN-19)
 
+/* early macros needed for prom/kgdb */
+
+#define ip3106_lcr(base,port)    *(volatile u32 *)(base+(port*0x1000) + 0x000)
+#define ip3106_mcr(base, port)   *(volatile u32 *)(base+(port*0x1000) + 0x004)
+#define ip3106_baud(base, port)  *(volatile u32 *)(base+(port*0x1000) + 0x008)
+#define ip3106_cfg(base, port)   *(volatile u32 *)(base+(port*0x1000) + 0x00C)
+#define ip3106_fifo(base, port)	 *(volatile u32 *)(base+(port*0x1000) + 0x028)
+#define ip3106_istat(base, port) *(volatile u32 *)(base+(port*0x1000) + 0xFE0)
+#define ip3106_ien(base, port)   *(volatile u32 *)(base+(port*0x1000) + 0xFE4)
+#define ip3106_iclr(base, port)  *(volatile u32 *)(base+(port*0x1000) + 0xFE8)
+#define ip3106_iset(base, port)  *(volatile u32 *)(base+(port*0x1000) + 0xFEC)
+#define ip3106_pd(base, port)    *(volatile u32 *)(base+(port*0x1000) + 0xFF4)
+#define ip3106_mid(base, port)   *(volatile u32 *)(base+(port*0x1000) + 0xFFC)
+
 #endif