[POWERPC] 85xx: Add support for the 8568 MDS board

Add support for the MPC8568 MDS reference board

Signed-off-by: Andrew Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 260 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index 0584f3c7e884..0efdd2f1babe 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -23,6 +23,13 @@ config MPC85xx_CDS
         help
           This option enables support for the MPC85xx CDS board
 
+config MPC8568_MDS
+        bool "Freescale MPC8568 MDS"
+        select DEFAULT_UIMAGE
+#       select QUICC_ENGINE
+        help
+          This option enables support for the MPC8568 MDS board
+
 endchoice
 
 config MPC8540
@@ -36,6 +43,12 @@ config MPC8560
         select PPC_INDIRECT_PCI
         default y if MPC8560_ADS
 
+config MPC85xx
+        bool
+        select PPC_UDBG_16550
+        select PPC_INDIRECT_PCI
+        default y if MPC8540_ADS || MPC85xx_CDS || MPC8560_ADS || MPC8568_MDS
+
 config PPC_INDIRECT_PCI_BE
         bool
         depends on PPC_85xx
diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index 282f5d0d0152..e40e521816b8 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -5,3 +5,4 @@ obj-$(CONFIG_PPC_85xx)	+= misc.o pci.o
 obj-$(CONFIG_MPC8540_ADS) += mpc85xx_ads.o
 obj-$(CONFIG_MPC8560_ADS) += mpc85xx_ads.o
 obj-$(CONFIG_MPC85xx_CDS) += mpc85xx_cds.o
+obj-$(CONFIG_MPC8568_MDS) += mpc8568_mds.o
diff --git a/arch/powerpc/platforms/85xx/mpc8568_mds.c b/arch/powerpc/platforms/85xx/mpc8568_mds.c
new file mode 100644
index 000000000000..0861d1107bc8
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/mpc8568_mds.c
@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) Freescale Semicondutor, Inc. 2006-2007. All rights reserved.
+ *
+ * Author: Andy Fleming <afleming@freescale.com>
+ *
+ * Based on 83xx/mpc8360e_pb.c by:
+ *         Li Yang <LeoLi@freescale.com>
+ *         Yin Olivia <Hong-hua.Yin@freescale.com>
+ *
+ * Description:
+ * MPC8568E MDS PB board specific routines.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/major.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/initrd.h>
+#include <linux/module.h>
+#include <linux/fsl_devices.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/bootinfo.h>
+#include <asm/pci-bridge.h>
+#include <asm/mpc85xx.h>
+#include <asm/irq.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <sysdev/fsl_soc.h>
+#include <asm/qe.h>
+#include <asm/qe_ic.h>
+#include <asm/mpic.h>
+
+#include "mpc85xx.h"
+
+#undef DEBUG
+#ifdef DEBUG
+#define DBG(fmt...) udbg_printf(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+#ifndef CONFIG_PCI
+unsigned long isa_io_base = 0;
+unsigned long isa_mem_base = 0;
+#endif
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc8568_mds_setup_arch(void)
+{
+        struct device_node *np;
+        static u8 *bcsr_regs = NULL;
+
+
+        if (ppc_md.progress)
+                ppc_md.progress("mpc8568_mds_setup_arch()", 0);
+
+        np = of_find_node_by_type(NULL, "cpu");
+        if (np != NULL) {
+                const unsigned int *fp =
+                    get_property(np, "clock-frequency", NULL);
+                if (fp != NULL)
+                        loops_per_jiffy = *fp / HZ;
+                else
+                        loops_per_jiffy = 50000000 / HZ;
+                of_node_put(np);
+        }
+
+        /* Map BCSR area */
+        np = of_find_node_by_name(NULL, "bcsr");
+        if (np != NULL) {
+                struct resource res;
+
+                of_address_to_resource(np, 0, &res);
+                bcsr_regs = ioremap(res.start, res.end - res.start +1);
+                of_node_put(np);
+        }
+
+#ifdef CONFIG_PCI
+        for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) {
+                add_bridge(np);
+        }
+        of_node_put(np);
+#endif
+
+#ifdef CONFIG_QUICC_ENGINE
+        if ((np = of_find_node_by_name(NULL, "qe")) != NULL) {
+                qe_reset();
+                of_node_put(np);
+        }
+
+        if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
+                struct device_node *ucc = NULL;
+
+                par_io_init(np);
+                of_node_put(np);
+
+                for ( ;(ucc = of_find_node_by_name(ucc, "ucc")) != NULL;)
+                        par_io_of_config(ucc);
+
+                of_node_put(ucc);
+        }
+
+        if (bcsr_regs) {
+                u8 bcsr_phy;
+
+                /* Reset the Ethernet PHY */
+                bcsr_phy = in_be8(&bcsr_regs[9]);
+                bcsr_phy &= ~0x20;
+                out_be8(&bcsr_regs[9], bcsr_phy);
+
+                udelay(1000);
+
+                bcsr_phy = in_be8(&bcsr_regs[9]);
+                bcsr_phy |= 0x20;
+                out_be8(&bcsr_regs[9], bcsr_phy);
+
+                iounmap(bcsr_regs);
+        }
+
+#endif  /* CONFIG_QUICC_ENGINE */
+}
+
+static struct of_device_id mpc8568_ids[] = {
+        { .type = "soc", },
+        { .compatible = "soc", },
+        { .type = "qe", },
+        {},
+};
+
+static int __init mpc8568_publish_devices(void)
+{
+        if (!machine_is(mpc8568_mds))
+                return 0;
+
+        /* Publish the QE devices */
+        of_platform_bus_probe(NULL,mpc8568_ids,NULL);
+
+        return 0;
+}
+device_initcall(mpc8568_publish_devices);
+
+static void __init mpc8568_mds_pic_init(void)
+{
+        struct mpic *mpic;
+        struct resource r;
+        struct device_node *np = NULL;
+
+        np = of_find_node_by_type(NULL, "open-pic");
+        if (!np)
+                return;
+
+        if (of_address_to_resource(np, 0, &r)) {
+                printk(KERN_ERR "Failed to map mpic register space\n");
+                of_node_put(np);
+                return;
+        }
+
+        mpic = mpic_alloc(np, r.start,
+                        MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
+                        4, 0, " OpenPIC  ");
+        BUG_ON(mpic == NULL);
+        of_node_put(np);
+
+        /* Internal Interrupts */
+        mpic_assign_isu(mpic, 0, r.start + 0x10200);
+        mpic_assign_isu(mpic, 1, r.start + 0x10280);
+        mpic_assign_isu(mpic, 2, r.start + 0x10300);
+        mpic_assign_isu(mpic, 3, r.start + 0x10380);
+        mpic_assign_isu(mpic, 4, r.start + 0x10400);
+        mpic_assign_isu(mpic, 5, r.start + 0x10480);
+        mpic_assign_isu(mpic, 6, r.start + 0x10500);
+        mpic_assign_isu(mpic, 7, r.start + 0x10580);
+        mpic_assign_isu(mpic, 8, r.start + 0x10600);
+        mpic_assign_isu(mpic, 9, r.start + 0x10680);
+        mpic_assign_isu(mpic, 10, r.start + 0x10700);
+        mpic_assign_isu(mpic, 11, r.start + 0x10780);
+
+        /* External Interrupts */
+        mpic_assign_isu(mpic, 12, r.start + 0x10000);
+        mpic_assign_isu(mpic, 13, r.start + 0x10080);
+        mpic_assign_isu(mpic, 14, r.start + 0x10100);
+
+        mpic_init(mpic);
+
+
+#ifdef CONFIG_QUICC_ENGINE
+        np = of_find_node_by_type(NULL, "qeic");
+        if (!np)
+                return;
+
+        qe_ic_init(np, 0);
+        of_node_put(np);
+#endif                          /* CONFIG_QUICC_ENGINE */
+}
+
+
+static int __init mpc8568_mds_probe(void)
+{
+        char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
+                                          "model", NULL);
+        if (model == NULL)
+                return 0;
+        if (strcmp(model, "MPC8568EMDS"))
+                return 0;
+
+        DBG("MPC8568EMDS found\n");
+
+        return 1;
+}
+
+
+define_machine(mpc8568_mds) {
+        .name           = "MPC8568E MDS",
+        .probe          = mpc8568_mds_probe,
+        .setup_arch     = mpc8568_mds_setup_arch,
+        .init_IRQ       = mpc8568_mds_pic_init,
+        .get_irq        = mpic_get_irq,
+        .restart        = mpc85xx_restart,
+        .calibrate_decr = generic_calibrate_decr,
+        .progress       = udbg_progress,
+};