Merge commit 'kumar/next' into merge

8 files changed, 248 insertions, 17 deletions

diff --git a/Documentation/powerpc/dts-bindings/fsl/mpic.txt b/Documentation/powerpc/dts-bindings/fsl/mpic.txt
new file mode 100644
index 000000000000..71e39cf3215b
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/fsl/mpic.txt
@@ -0,0 +1,42 @@
+* OpenPIC and its interrupt numbers on Freescale's e500/e600 cores
+
+The OpenPIC specification does not specify which interrupt source has to
+become which interrupt number. This is up to the software implementation
+of the interrupt controller. The only requirement is that every
+interrupt source has to have an unique interrupt number / vector number.
+To accomplish this the current implementation assigns the number zero to
+the first source, the number one to the second source and so on until
+all interrupt sources have their unique number.
+Usually the assigned vector number equals the interrupt number mentioned
+in the documentation for a given core / CPU. This is however not true
+for the e500 cores (MPC85XX CPUs) where the documentation distinguishes
+between internal and external interrupt sources and starts counting at
+zero for both of them.
+
+So what to write for external interrupt source X or internal interrupt
+source Y into the device tree? Here is an example:
+
+The memory map for the interrupt controller in the MPC8544[0] shows,
+that the first interrupt source starts at 0x5_0000 (PIC Register Address
+Map-Interrupt Source Configuration Registers). This source becomes the
+number zero therefore:
+ External interrupt 0 = interrupt number 0
+ External interrupt 1 = interrupt number 1
+ External interrupt 2 = interrupt number 2
+ ...
+Every interrupt number allocates 0x20 bytes register space. So to get
+its number it is sufficient to shift the lower 16bits to right by five.
+So for the external interrupt 10 we have:
+  0x0140 >> 5 = 10
+
+After the external sources, the internal sources follow. The in core I2C
+controller on the MPC8544 for instance has the internal source number
+27. Oo obtain its interrupt number we take the lower 16bits of its memory
+address (0x5_0560) and shift it right:
+ 0x0560 >> 5 = 43
+
+Therefore the I2C device node for the MPC8544 CPU has to have the
+interrupt number 43 specified in the device tree.
+
+[0] MPC8544E PowerQUICCTM III, Integrated Host Processor Family Reference Manual
+    MPC8544ERM Rev. 1 10/2007
diff --git a/arch/powerpc/boot/dts/mpc8315erdb.dts b/arch/powerpc/boot/dts/mpc8315erdb.dts
index 32e10f588c1d..8a3a4f3ef831 100644
--- a/arch/powerpc/boot/dts/mpc8315erdb.dts
+++ b/arch/powerpc/boot/dts/mpc8315erdb.dts
@@ -204,6 +204,7 @@
                         interrupt-parent = <&ipic>;
                         tbi-handle = <&tbi0>;
                         phy-handle = < &phy0 >;
+                        fsl,magic-packet;
 
                         mdio@520 {
                                 #address-cells = <1>;
@@ -246,6 +247,7 @@
                         interrupt-parent = <&ipic>;
                         tbi-handle = <&tbi1>;
                         phy-handle = < &phy1 >;
+                        fsl,magic-packet;
 
                         mdio@520 {
                                 #address-cells = <1>;
@@ -309,6 +311,22 @@
                         interrupt-parent = <&ipic>;
                 };
 
+                gtm1: timer@500 {
+                        compatible = "fsl,mpc8315-gtm", "fsl,gtm";
+                        reg = <0x500 0x100>;
+                        interrupts = <90 8 78 8 84 8 72 8>;
+                        interrupt-parent = <&ipic>;
+                        clock-frequency = <133333333>;
+                };
+
+                timer@600 {
+                        compatible = "fsl,mpc8315-gtm", "fsl,gtm";
+                        reg = <0x600 0x100>;
+                        interrupts = <91 8 79 8 85 8 73 8>;
+                        interrupt-parent = <&ipic>;
+                        clock-frequency = <133333333>;
+                };
+
                 /* IPIC
                  * interrupts cell = <intr #, sense>
                  * sense values match linux IORESOURCE_IRQ_* defines:
@@ -337,6 +355,15 @@
                                       0x59 0x8>;
                         interrupt-parent = < &ipic >;
                 };
+
+                pmc: power@b00 {
+                        compatible = "fsl,mpc8315-pmc", "fsl,mpc8313-pmc",
+                                     "fsl,mpc8349-pmc";
+                        reg = <0xb00 0x100 0xa00 0x100>;
+                        interrupts = <80 8>;
+                        interrupt-parent = <&ipic>;
+                        fsl,mpc8313-wakeup-timer = <&gtm1>;
+                };
         };
 
         pci0: pci@e0008500 {
diff --git a/arch/powerpc/boot/dts/mpc8349emitx.dts b/arch/powerpc/boot/dts/mpc8349emitx.dts
index feeeb7f9d609..b53d1df11e2d 100644
--- a/arch/powerpc/boot/dts/mpc8349emitx.dts
+++ b/arch/powerpc/boot/dts/mpc8349emitx.dts
@@ -63,6 +63,24 @@
                         reg = <0x200 0x100>;
                 };
 
+                gpio1: gpio-controller@c00 {
+                        #gpio-cells = <2>;
+                        compatible = "fsl,mpc8349-gpio";
+                        reg = <0xc00 0x100>;
+                        interrupts = <74 0x8>;
+                        interrupt-parent = <&ipic>;
+                        gpio-controller;
+                };
+
+                gpio2: gpio-controller@d00 {
+                        #gpio-cells = <2>;
+                        compatible = "fsl,mpc8349-gpio";
+                        reg = <0xd00 0x100>;
+                        interrupts = <75 0x8>;
+                        interrupt-parent = <&ipic>;
+                        gpio-controller;
+                };
+
                 i2c@3000 {
                         #address-cells = <1>;
                         #size-cells = <0>;
@@ -72,6 +90,12 @@
                         interrupts = <14 0x8>;
                         interrupt-parent = <&ipic>;
                         dfsrr;
+
+                        eeprom: at24@50 {
+                                compatible = "st-micro,24c256";
+                                reg = <0x50>;
+                        };
+
                 };
 
                 i2c@3100 {
@@ -91,6 +115,25 @@
                                 interrupt-parent = <&ipic>;
                         };
 
+                        pcf1: iexp@38 {
+                                #gpio-cells = <2>;
+                                compatible = "ti,pcf8574a";
+                                reg = <0x38>;
+                                gpio-controller;
+                        };
+
+                        pcf2: iexp@39 {
+                                #gpio-cells = <2>;
+                                compatible = "ti,pcf8574a";
+                                reg = <0x39>;
+                                gpio-controller;
+                        };
+
+                        spd: at24@51 {
+                                compatible = "at24,spd";
+                                reg = <0x51>;
+                        };
+
                         mcu_pio: mcu@a {
                                 #gpio-cells = <2>;
                                 compatible = "fsl,mc9s08qg8-mpc8349emitx",
@@ -275,6 +318,24 @@
                         reg = <0x700 0x100>;
                         device_type = "ipic";
                 };
+
+                gpio-leds {
+                        compatible = "gpio-leds";
+
+                        green {
+                                label = "Green";
+                                gpios = <&pcf1 0 1>;
+                                linux,default-trigger = "heartbeat";
+                        };
+
+                        yellow {
+                                label = "Yellow";
+                                gpios = <&pcf1 1 1>;
+                                /* linux,default-trigger = "heartbeat"; */
+                                default-state = "on";
+                        };
+                };
+
         };
 
         pci0: pci@e0008500 {
@@ -331,7 +392,26 @@
                 compatible = "fsl,mpc8349e-localbus",
                              "fsl,pq2pro-localbus";
                 reg = <0xe0005000 0xd8>;
-                ranges = <0x3 0x0 0xf0000000 0x210>;
+                ranges = <0x0 0x0 0xfe000000 0x1000000  /* flash */
+                          0x1 0x0 0xf8000000 0x20000    /* VSC 7385 */
+                          0x2 0x0 0xf9000000 0x200000   /* exp slot */
+                          0x3 0x0 0xf0000000 0x210>;    /* CF slot */
+
+                flash@0,0 {
+                        compatible = "cfi-flash";
+                        reg = <0x0      0x0 0x800000>;
+                        bank-width = <2>;
+                        device-width = <1>;
+                };
+
+                flash@0,800000 {
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        compatible = "cfi-flash";
+                        reg = <0x0 0x800000 0x800000>;
+                        bank-width = <2>;
+                        device-width = <1>;
+                };
 
                 pata@3,0 {
                         compatible = "fsl,mpc8349emitx-pata", "ata-generic";
diff --git a/arch/powerpc/include/asm/gpio.h b/arch/powerpc/include/asm/gpio.h
index ea04632399d8..38762edb5e58 100644
--- a/arch/powerpc/include/asm/gpio.h
+++ b/arch/powerpc/include/asm/gpio.h
@@ -38,12 +38,9 @@ static inline int gpio_cansleep(unsigned int gpio)
         return __gpio_cansleep(gpio);
 }
 
-/*
- * Not implemented, yet.
- */
 static inline int gpio_to_irq(unsigned int gpio)
 {
-        return -ENOSYS;
+        return __gpio_to_irq(gpio);
 }
 
 static inline int irq_to_gpio(unsigned int irq)
diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c
index d306f07b9aa1..43805348b81e 100644
--- a/arch/powerpc/platforms/83xx/suspend.c
+++ b/arch/powerpc/platforms/83xx/suspend.c
@@ -32,6 +32,7 @@
 #define PMCCR1_NEXT_STATE       0x0C /* Next state for power management */
 #define PMCCR1_NEXT_STATE_SHIFT 2
 #define PMCCR1_CURR_STATE       0x03 /* Current state for power management*/
+#define IMMR_SYSCR_OFFSET       0x100
 #define IMMR_RCW_OFFSET         0x900
 #define RCW_PCI_HOST            0x80000000
 
@@ -78,6 +79,22 @@ struct mpc83xx_clock {
         u32 sccr;
 };
 
+struct mpc83xx_syscr {
+        __be32 sgprl;
+        __be32 sgprh;
+        __be32 spridr;
+        __be32 :32;
+        __be32 spcr;
+        __be32 sicrl;
+        __be32 sicrh;
+};
+
+struct mpc83xx_saved {
+        u32 sicrl;
+        u32 sicrh;
+        u32 sccr;
+};
+
 struct pmc_type {
         int has_deep_sleep;
 };
@@ -87,6 +104,8 @@ static int has_deep_sleep, deep_sleeping;
 static int pmc_irq;
 static struct mpc83xx_pmc __iomem *pmc_regs;
 static struct mpc83xx_clock __iomem *clock_regs;
+static struct mpc83xx_syscr __iomem *syscr_regs;
+static struct mpc83xx_saved saved_regs;
 static int is_pci_agent, wake_from_pci;
 static phys_addr_t immrbase;
 static int pci_pm_state;
@@ -137,6 +156,20 @@ static irqreturn_t pmc_irq_handler(int irq, void *dev_id)
         return ret;
 }
 
+static void mpc83xx_suspend_restore_regs(void)
+{
+        out_be32(&syscr_regs->sicrl, saved_regs.sicrl);
+        out_be32(&syscr_regs->sicrh, saved_regs.sicrh);
+        out_be32(&clock_regs->sccr, saved_regs.sccr);
+}
+
+static void mpc83xx_suspend_save_regs(void)
+{
+        saved_regs.sicrl = in_be32(&syscr_regs->sicrl);
+        saved_regs.sicrh = in_be32(&syscr_regs->sicrh);
+        saved_regs.sccr = in_be32(&clock_regs->sccr);
+}
+
 static int mpc83xx_suspend_enter(suspend_state_t state)
 {
         int ret = -EAGAIN;
@@ -166,6 +199,8 @@ static int mpc83xx_suspend_enter(suspend_state_t state)
          */
 
         if (deep_sleeping) {
+                mpc83xx_suspend_save_regs();
+
                 out_be32(&pmc_regs->mask, PMCER_ALL);
 
                 out_be32(&pmc_regs->config1,
@@ -179,6 +214,8 @@ static int mpc83xx_suspend_enter(suspend_state_t state)
                          in_be32(&pmc_regs->config1) & ~PMCCR1_POWER_OFF);
 
                 out_be32(&pmc_regs->mask, PMCER_PMCI);
+
+                mpc83xx_suspend_restore_regs();
         } else {
                 out_be32(&pmc_regs->mask, PMCER_PMCI);
 
@@ -194,7 +231,7 @@ out:
         return ret;
 }
 
-static void mpc83xx_suspend_finish(void)
+static void mpc83xx_suspend_end(void)
 {
         deep_sleeping = 0;
 }
@@ -278,7 +315,7 @@ static struct platform_suspend_ops mpc83xx_suspend_ops = {
         .valid = mpc83xx_suspend_valid,
         .begin = mpc83xx_suspend_begin,
         .enter = mpc83xx_suspend_enter,
-        .finish = mpc83xx_suspend_finish,
+        .end = mpc83xx_suspend_end,
 };
 
 static int pmc_probe(struct of_device *ofdev,
@@ -333,12 +370,23 @@ static int pmc_probe(struct of_device *ofdev,
                 goto out_pmc;
         }
 
+        if (has_deep_sleep) {
+                syscr_regs = ioremap(immrbase + IMMR_SYSCR_OFFSET,
+                                     sizeof(*syscr_regs));
+                if (!syscr_regs) {
+                        ret = -ENOMEM;
+                        goto out_syscr;
+                }
+        }
+
         if (is_pci_agent)
                 mpc83xx_set_agent();
 
         suspend_set_ops(&mpc83xx_suspend_ops);
         return 0;
 
+out_syscr:
+        iounmap(clock_regs);
 out_pmc:
         iounmap(pmc_regs);
 out:
diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c
index 971483f0dfac..1709ac5aac7c 100644
--- a/arch/powerpc/sysdev/cpm2_pic.c
+++ b/arch/powerpc/sysdev/cpm2_pic.c
@@ -143,13 +143,23 @@ static int cpm2_set_irq_type(unsigned int virq, unsigned int flow_type)
         struct irq_desc *desc = irq_to_desc(virq);
         unsigned int vold, vnew, edibit;
 
-        if (flow_type == IRQ_TYPE_NONE)
-                flow_type = IRQ_TYPE_LEVEL_LOW;
-
-        if (flow_type & IRQ_TYPE_EDGE_RISING) {
-                printk(KERN_ERR "CPM2 PIC: sense type 0x%x not supported\n",
-                        flow_type);
-                return -EINVAL;
+        /* Port C interrupts are either IRQ_TYPE_EDGE_FALLING or
+         * IRQ_TYPE_EDGE_BOTH (default).  All others are IRQ_TYPE_EDGE_FALLING
+         * or IRQ_TYPE_LEVEL_LOW (default)
+         */
+        if (src >= CPM2_IRQ_PORTC15 && src <= CPM2_IRQ_PORTC0) {
+                if (flow_type == IRQ_TYPE_NONE)
+                        flow_type = IRQ_TYPE_EDGE_BOTH;
+
+                if (flow_type != IRQ_TYPE_EDGE_BOTH &&
+                    flow_type != IRQ_TYPE_EDGE_FALLING)
+                        goto err_sense;
+        } else {
+                if (flow_type == IRQ_TYPE_NONE)
+                        flow_type = IRQ_TYPE_LEVEL_LOW;
+
+                if (flow_type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_LEVEL_HIGH))
+                        goto err_sense;
         }
 
         desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
@@ -181,6 +191,10 @@ static int cpm2_set_irq_type(unsigned int virq, unsigned int flow_type)
         if (vold != vnew)
                 out_be32(&cpm2_intctl->ic_siexr, vnew);
         return 0;
+
+err_sense:
+        pr_err("CPM2 PIC: sense type 0x%x not supported\n", flow_type);
+        return -EINVAL;
 }
 
 static struct irq_chip cpm2_pic = {
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 4e3a3e345ab3..e1a028c1f18d 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -464,8 +464,7 @@ static void __iomem *mpc83xx_pcie_remap_cfg(struct pci_bus *bus,
 {
         struct pci_controller *hose = pci_bus_to_host(bus);
         struct mpc83xx_pcie_priv *pcie = hose->dn->data;
-        u8 bus_no = bus->number - hose->first_busno;
-        u32 dev_base = bus_no << 24 | devfn << 16;
+        u32 dev_base = bus->number << 24 | devfn << 16;
         int ret;
 
         ret = mpc83xx_pcie_exclude_device(bus, devfn);
@@ -515,12 +514,17 @@ static int mpc83xx_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
 static int mpc83xx_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
                                      int offset, int len, u32 val)
 {
+        struct pci_controller *hose = pci_bus_to_host(bus);
         void __iomem *cfg_addr;
 
         cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset);
         if (!cfg_addr)
                 return PCIBIOS_DEVICE_NOT_FOUND;
 
+        /* PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS */
+        if (offset == PCI_PRIMARY_BUS && bus->number == hose->first_busno)
+                val &= 0xffffff00;
+
         switch (len) {
         case 1:
                 out_8(cfg_addr, val);
diff --git a/arch/powerpc/sysdev/mpc8xxx_gpio.c b/arch/powerpc/sysdev/mpc8xxx_gpio.c
index 103eace36194..ee1c0e1cf4a7 100644
--- a/arch/powerpc/sysdev/mpc8xxx_gpio.c
+++ b/arch/powerpc/sysdev/mpc8xxx_gpio.c
@@ -54,6 +54,22 @@ static void mpc8xxx_gpio_save_regs(struct of_mm_gpio_chip *mm)
         mpc8xxx_gc->data = in_be32(mm->regs + GPIO_DAT);
 }
 
+/* Workaround GPIO 1 errata on MPC8572/MPC8536. The status of GPIOs
+ * defined as output cannot be determined by reading GPDAT register,
+ * so we use shadow data register instead. The status of input pins
+ * is determined by reading GPDAT register.
+ */
+static int mpc8572_gpio_get(struct gpio_chip *gc, unsigned int gpio)
+{
+        u32 val;
+        struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
+        struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm);
+
+        val = in_be32(mm->regs + GPIO_DAT) & ~in_be32(mm->regs + GPIO_DIR);
+
+        return (val | mpc8xxx_gc->data) & mpc8xxx_gpio2mask(gpio);
+}
+
 static int mpc8xxx_gpio_get(struct gpio_chip *gc, unsigned int gpio)
 {
         struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
@@ -136,7 +152,10 @@ static void __init mpc8xxx_add_controller(struct device_node *np)
         gc->ngpio = MPC8XXX_GPIO_PINS;
         gc->direction_input = mpc8xxx_gpio_dir_in;
         gc->direction_output = mpc8xxx_gpio_dir_out;
-        gc->get = mpc8xxx_gpio_get;
+        if (of_device_is_compatible(np, "fsl,mpc8572-gpio"))
+                gc->get = mpc8572_gpio_get;
+        else
+                gc->get = mpc8xxx_gpio_get;
         gc->set = mpc8xxx_gpio_set;
 
         ret = of_mm_gpiochip_add(np, mm_gc);