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, 84 insertions, 0 deletions

diff --git a/arch/mips/alchemy/common/vss.c b/arch/mips/alchemy/common/vss.c
new file mode 100644
index 00000000000..d23b1444d36
--- /dev/null
+++ b/arch/mips/alchemy/common/vss.c
@@ -0,0 +1,84 @@
+/*
+ * Au1300 media block power gating (VSS)
+ *
+ * This is a stop-gap solution until I have the clock framework integration
+ * ready. This stuff here really must be handled transparently when clocks
+ * for various media blocks are enabled/disabled.
+ */
+
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <asm/mach-au1x00/au1000.h>
+
+#define VSS_GATE	0x00	/* gate wait timers */
+#define VSS_CLKRST	0x04	/* clock/block control */
+#define VSS_FTR		0x08	/* footers */
+
+#define VSS_ADDR(blk)	(KSEG1ADDR(AU1300_VSS_PHYS_ADDR) + (blk * 0x0c))
+
+static DEFINE_SPINLOCK(au1300_vss_lock);
+
+/* enable a block as outlined in the databook */
+static inline void __enable_block(int block)
+{
+	void __iomem *base = (void __iomem *)VSS_ADDR(block);
+
+	__raw_writel(3, base + VSS_CLKRST);	/* enable clock, assert reset */
+	wmb();
+
+	__raw_writel(0x01fffffe, base + VSS_GATE); /* maximum setup time */
+	wmb();
+
+	/* enable footers in sequence */
+	__raw_writel(0x01, base + VSS_FTR);
+	wmb();
+	__raw_writel(0x03, base + VSS_FTR);
+	wmb();
+	__raw_writel(0x07, base + VSS_FTR);
+	wmb();
+	__raw_writel(0x0f, base + VSS_FTR);
+	wmb();
+
+	__raw_writel(0x01ffffff, base + VSS_GATE); /* start FSM too */
+	wmb();
+
+	__raw_writel(2, base + VSS_CLKRST);	/* deassert reset */
+	wmb();
+
+	__raw_writel(0x1f, base + VSS_FTR);	/* enable isolation cells */
+	wmb();
+}
+
+/* disable a block as outlined in the databook */
+static inline void __disable_block(int block)
+{
+	void __iomem *base = (void __iomem *)VSS_ADDR(block);
+
+	__raw_writel(0x0f, base + VSS_FTR);	/* disable isolation cells */
+	wmb();
+	__raw_writel(0, base + VSS_GATE);	/* disable FSM */
+	wmb();
+	__raw_writel(3, base + VSS_CLKRST);	/* assert reset */
+	wmb();
+	__raw_writel(1, base + VSS_CLKRST);	/* disable clock */
+	wmb();
+	__raw_writel(0, base + VSS_FTR);	/* disable all footers */
+	wmb();
+}
+
+void au1300_vss_block_control(int block, int enable)
+{
+	unsigned long flags;
+
+	if (alchemy_get_cputype() != ALCHEMY_CPU_AU1300)
+		return;
+
+	/* only one block at a time */
+	spin_lock_irqsave(&au1300_vss_lock, flags);
+	if (enable)
+		__enable_block(block);
+	else
+		__disable_block(block);
+	spin_unlock_irqrestore(&au1300_vss_lock, flags);
+}
+EXPORT_SYMBOL_GPL(au1300_vss_block_control);