Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (119 commits)
  MIPS: Delete unused function add_temporary_entry.
  MIPS: Set default pci cache line size.
  MIPS: Flush huge TLB
  MIPS: Octeon: Remove SYS_SUPPORTS_HIGHMEM.
  MIPS: Octeon: Add support for OCTEON II PCIe
  MIPS: Octeon: Update PCI Latency timer and enable more error reporting.
  MIPS: Alchemy: Update cpu-feature-overrides
  MIPS: Alchemy: db1200: Improve PB1200 detection.
  MIPS: Alchemy: merge Au1000 and Au1300-style IRQ controller code.
  MIPS: Alchemy: chain IRQ controllers to MIPS IRQ controller
  MIPS: Alchemy: irq: register pm at irq init time
  MIPS: Alchemy: Touchscreen support on DB1100
  MIPS: Alchemy: Hook up IrDA on DB1000/DB1100
  net/irda: convert au1k_ir to platform driver.
  MIPS: Alchemy: remove unused board headers
  MTD: nand: make au1550nd.c a platform_driver
  MIPS: Netlogic: Mark Netlogic chips as SMT capable
  MIPS: Netlogic: Add support for XLP 3XX cores
  MIPS: Netlogic: Merge some of XLR/XLP wakup code
  MIPS: Netlogic: Add default XLP config.
  ...

Fix up trivial conflicts in arch/mips/kernel/{perf_event_mipsxx.c,
traps.c} and drivers/tty/serial/Makefile

1 files changed, 67 insertions, 9 deletions

diff --git a/arch/mips/ath79/early_printk.c b/arch/mips/ath79/early_printk.c
index 7499b0e9df26..6a51ced7a293 100644
--- a/arch/mips/ath79/early_printk.c
+++ b/arch/mips/ath79/early_printk.c
@@ -1,7 +1,7 @@
 /*
- *  Atheros AR71XX/AR724X/AR913X SoC early printk support
+ *  Atheros AR7XXX/AR9XXX SoC early printk support
  *
- *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  *  This program is free software; you can redistribute it and/or modify it
@@ -10,27 +10,85 @@
  */
 
 #include <linux/io.h>
+#include <linux/errno.h>
 #include <linux/serial_reg.h>
 #include <asm/addrspace.h>
 
+#include <asm/mach-ath79/ath79.h>
 #include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ar933x_uart.h>
 
-static inline void prom_wait_thre(void __iomem *base)
+static void (*_prom_putchar) (unsigned char);
+
+static inline void prom_putchar_wait(void __iomem *reg, u32 mask, u32 val)
 {
-	u32 lsr;
+	u32 t;
 
 	do {
-		lsr = __raw_readl(base + UART_LSR * 4);
-		if (lsr & UART_LSR_THRE)
+		t = __raw_readl(reg);
+		if ((t & mask) == val)
 			break;
 	} while (1);
 }
 
-void prom_putchar(unsigned char ch)
+static void prom_putchar_ar71xx(unsigned char ch)
 {
 	void __iomem *base = (void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE));
 
-	prom_wait_thre(base);
+	prom_putchar_wait(base + UART_LSR * 4, UART_LSR_THRE, UART_LSR_THRE);
 	__raw_writel(ch, base + UART_TX * 4);
-	prom_wait_thre(base);
+	prom_putchar_wait(base + UART_LSR * 4, UART_LSR_THRE, UART_LSR_THRE);
+}
+
+static void prom_putchar_ar933x(unsigned char ch)
+{
+	void __iomem *base = (void __iomem *)(KSEG1ADDR(AR933X_UART_BASE));
+
+	prom_putchar_wait(base + AR933X_UART_DATA_REG, AR933X_UART_DATA_TX_CSR,
+			  AR933X_UART_DATA_TX_CSR);
+	__raw_writel(AR933X_UART_DATA_TX_CSR | ch, base + AR933X_UART_DATA_REG);
+	prom_putchar_wait(base + AR933X_UART_DATA_REG, AR933X_UART_DATA_TX_CSR,
+			  AR933X_UART_DATA_TX_CSR);
+}
+
+static void prom_putchar_dummy(unsigned char ch)
+{
+	/* nothing to do */
+}
+
+static void prom_putchar_init(void)
+{
+	void __iomem *base;
+	u32 id;
+
+	base = (void __iomem *)(KSEG1ADDR(AR71XX_RESET_BASE));
+	id = __raw_readl(base + AR71XX_RESET_REG_REV_ID);
+	id &= REV_ID_MAJOR_MASK;
+
+	switch (id) {
+	case REV_ID_MAJOR_AR71XX:
+	case REV_ID_MAJOR_AR7240:
+	case REV_ID_MAJOR_AR7241:
+	case REV_ID_MAJOR_AR7242:
+	case REV_ID_MAJOR_AR913X:
+		_prom_putchar = prom_putchar_ar71xx;
+		break;
+
+	case REV_ID_MAJOR_AR9330:
+	case REV_ID_MAJOR_AR9331:
+		_prom_putchar = prom_putchar_ar933x;
+		break;
+
+	default:
+		_prom_putchar = prom_putchar_dummy;
+		break;
+	}
+}
+
+void prom_putchar(unsigned char ch)
+{
+	if (!_prom_putchar)
+		prom_putchar_init();
+
+	_prom_putchar(ch);
 }