powerpc/fsl_soc: isolate legacy fsl_spi support to mpc832x_rdb boards
[safe/jmp/linux-2.6] / arch / powerpc / platforms / 83xx / mpc836x_mds.c
index 84b5893..09e9d6f 100644 (file)
@@ -18,6 +18,7 @@
 
 #include <linux/stddef.h>
 #include <linux/kernel.h>
+#include <linux/compiler.h>
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/reboot.h>
 #include <linux/seq_file.h>
 #include <linux/root_dev.h>
 #include <linux/initrd.h>
+#include <linux/of_platform.h>
+#include <linux/of_device.h>
 
-#include <asm/of_device.h>
-#include <asm/of_platform.h>
 #include <asm/system.h>
 #include <asm/atomic.h>
 #include <asm/time.h>
 #include <asm/io.h>
 #include <asm/machdep.h>
 #include <asm/ipic.h>
-#include <asm/bootinfo.h>
 #include <asm/irq.h>
 #include <asm/prom.h>
 #include <asm/udbg.h>
 #include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+#include <sysdev/simple_gpio.h>
 #include <asm/qe.h>
 #include <asm/qe_ic.h>
 
@@ -55,8 +57,6 @@
 #define DBG(fmt...)
 #endif
 
-static u8 *bcsr_regs = NULL;
-
 /* ************************************************************************
  *
  * Setup the architecture
@@ -65,13 +65,14 @@ static u8 *bcsr_regs = NULL;
 static void __init mpc836x_mds_setup_arch(void)
 {
        struct device_node *np;
+       u8 __iomem *bcsr_regs = NULL;
 
        if (ppc_md.progress)
                ppc_md.progress("mpc836x_mds_setup_arch()", 0);
 
        /* Map BCSR area */
        np = of_find_node_by_name(NULL, "bcsr");
-       if (np != 0) {
+       if (np) {
                struct resource res;
 
                of_address_to_resource(np, 0, &res);
@@ -80,9 +81,8 @@ static void __init mpc836x_mds_setup_arch(void)
        }
 
 #ifdef CONFIG_PCI
-       for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
+       for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
                mpc83xx_add_bridge(np);
-       ppc_md.pci_exclude_device = mpc83xx_exclude_device;
 #endif
 
 #ifdef CONFIG_QUICC_ENGINE
@@ -94,39 +94,137 @@ static void __init mpc836x_mds_setup_arch(void)
 
                for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
                        par_io_of_config(np);
+#ifdef CONFIG_QE_USB
+               /* Must fixup Par IO before QE GPIO chips are registered. */
+               par_io_config_pin(1,  2, 1, 0, 3, 0); /* USBOE  */
+               par_io_config_pin(1,  3, 1, 0, 3, 0); /* USBTP  */
+               par_io_config_pin(1,  8, 1, 0, 1, 0); /* USBTN  */
+               par_io_config_pin(1, 10, 2, 0, 3, 0); /* USBRXD */
+               par_io_config_pin(1,  9, 2, 1, 3, 0); /* USBRP  */
+               par_io_config_pin(1, 11, 2, 1, 3, 0); /* USBRN  */
+               par_io_config_pin(2, 20, 2, 0, 1, 0); /* CLK21  */
+#endif /* CONFIG_QE_USB */
        }
 
        if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
                        != NULL){
+               uint svid;
+
                /* Reset the Ethernet PHY */
-               bcsr_regs[9] &= ~0x20;
+#define BCSR9_GETHRST 0x20
+               clrbits8(&bcsr_regs[9], BCSR9_GETHRST);
                udelay(1000);
-               bcsr_regs[9] |= 0x20;
+               setbits8(&bcsr_regs[9], BCSR9_GETHRST);
+
+               /* handle mpc8360ea rev.2.1 erratum 2: RGMII Timing */
+               svid = mfspr(SPRN_SVR);
+               if (svid == 0x80480021) {
+                       void __iomem *immap;
+
+                       immap = ioremap(get_immrbase() + 0x14a8, 8);
+
+                       /*
+                        * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2)
+                        * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1)
+                        */
+                       setbits32(immap, 0x0c003000);
+
+                       /*
+                        * IMMR + 0x14AC[20:27] = 10101010
+                        * (data delay for both UCC's)
+                        */
+                       clrsetbits_be32(immap + 4, 0xff0, 0xaa0);
+
+                       iounmap(immap);
+               }
+
                iounmap(bcsr_regs);
                of_node_put(np);
        }
-
 #endif                         /* CONFIG_QUICC_ENGINE */
 }
 
 static struct of_device_id mpc836x_ids[] = {
        { .type = "soc", },
        { .compatible = "soc", },
+       { .compatible = "simple-bus", },
        { .type = "qe", },
+       { .compatible = "fsl,qe", },
        {},
 };
 
 static int __init mpc836x_declare_of_platform_devices(void)
 {
-       if (!machine_is(mpc836x_mds))
-               return 0;
-
        /* Publish the QE devices */
        of_platform_bus_probe(NULL, mpc836x_ids, NULL);
 
        return 0;
 }
-device_initcall(mpc836x_declare_of_platform_devices);
+machine_device_initcall(mpc836x_mds, mpc836x_declare_of_platform_devices);
+
+#ifdef CONFIG_QE_USB
+static int __init mpc836x_usb_cfg(void)
+{
+       u8 __iomem *bcsr;
+       struct device_node *np;
+       const char *mode;
+       int ret = 0;
+
+       np = of_find_compatible_node(NULL, NULL, "fsl,mpc8360mds-bcsr");
+       if (!np)
+               return -ENODEV;
+
+       bcsr = of_iomap(np, 0);
+       of_node_put(np);
+       if (!bcsr)
+               return -ENOMEM;
+
+       np = of_find_compatible_node(NULL, NULL, "fsl,mpc8323-qe-usb");
+       if (!np) {
+               ret = -ENODEV;
+               goto err;
+       }
+
+#define BCSR8_TSEC1M_MASK      (0x3 << 6)
+#define BCSR8_TSEC1M_RGMII     (0x0 << 6)
+#define BCSR8_TSEC2M_MASK      (0x3 << 4)
+#define BCSR8_TSEC2M_RGMII     (0x0 << 4)
+       /*
+        * Default is GMII (2), but we should set it to RGMII (0) if we use
+        * USB (Eth PHY is in RGMII mode anyway).
+        */
+       clrsetbits_8(&bcsr[8], BCSR8_TSEC1M_MASK | BCSR8_TSEC2M_MASK,
+                              BCSR8_TSEC1M_RGMII | BCSR8_TSEC2M_RGMII);
+
+#define BCSR13_USBMASK 0x0f
+#define BCSR13_nUSBEN  0x08 /* 1 - Disable, 0 - Enable                 */
+#define BCSR13_USBSPEED        0x04 /* 1 - Full, 0 - Low                       */
+#define BCSR13_USBMODE 0x02 /* 1 - Host, 0 - Function                  */
+#define BCSR13_nUSBVCC 0x01 /* 1 - gets VBUS, 0 - supplies VBUS        */
+
+       clrsetbits_8(&bcsr[13], BCSR13_USBMASK, BCSR13_USBSPEED);
+
+       mode = of_get_property(np, "mode", NULL);
+       if (mode && !strcmp(mode, "peripheral")) {
+               setbits8(&bcsr[13], BCSR13_nUSBVCC);
+               qe_usb_clock_set(QE_CLK21, 48000000);
+       } else {
+               setbits8(&bcsr[13], BCSR13_USBMODE);
+               /*
+                * The BCSR GPIOs are used to control power and
+                * speed of the USB transceiver. This is needed for
+                * the USB Host only.
+                */
+               simple_gpiochip_init("fsl,mpc8360mds-bcsr-gpio");
+       }
+
+       of_node_put(np);
+err:
+       iounmap(bcsr);
+       return ret;
+}
+machine_arch_initcall(mpc836x_mds, mpc836x_usb_cfg);
+#endif /* CONFIG_QE_USB */
 
 static void __init mpc836x_mds_init_IRQ(void)
 {
@@ -145,39 +243,17 @@ static void __init mpc836x_mds_init_IRQ(void)
        of_node_put(np);
 
 #ifdef CONFIG_QUICC_ENGINE
-       np = of_find_node_by_type(NULL, "qeic");
-       if (!np)
-               return;
-
-       qe_ic_init(np, 0);
+       np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+       if (!np) {
+               np = of_find_node_by_type(NULL, "qeic");
+               if (!np)
+                       return;
+       }
+       qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
        of_node_put(np);
 #endif                         /* CONFIG_QUICC_ENGINE */
 }
 
-#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
-extern ulong ds1374_get_rtc_time(void);
-extern int ds1374_set_rtc_time(ulong);
-
-static int __init mpc8360_rtc_hookup(void)
-{
-       struct timespec tv;
-
-       if (!machine_is(mpc836x_mds))
-               return 0;
-
-       ppc_md.get_rtc_time = ds1374_get_rtc_time;
-       ppc_md.set_rtc_time = ds1374_set_rtc_time;
-
-       tv.tv_nsec = 0;
-       tv.tv_sec = (ppc_md.get_rtc_time) ();
-       do_settimeofday(&tv);
-
-       return 0;
-}
-
-late_initcall(mpc8360_rtc_hookup);
-#endif
-
 /*
  * Called very early, MMU is off, device-tree isn't unflattened
  */