[POWERPC] 85xx: Add basic support for Wind River SBC8548 board

This adds the basic support for the Wind River SBC8548 board, implemented
as powerpc.  It closely follows the implementation of the MPC8548CDS.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index 333779ee5f1e1b7029313ee38096e37128ef3085..74779b92ff36c81b166c87a2da2bcf876009b81f 100644 (file)
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -83,6 +83,12 @@ config TQM8560
        select TQM85xx
        select CPM2
 
+config SBC8548
+       bool "Wind River SBC8548"
+       select DEFAULT_UIMAGE
+       help
+         This option enables support for the Wind River SBC8548 board
+
 config SBC8560
        bool "Wind River SBC8560"
        select DEFAULT_UIMAGE
@@ -100,7 +106,7 @@ config MPC8540
        bool
        select PPC_UDBG_16550
        select PPC_INDIRECT_PCI
-       default y if MPC8540_ADS || MPC85xx_CDS
+       default y if MPC8540_ADS || MPC85xx_CDS || SBC8548
 
 config MPC85xx
        bool
@@ -110,4 +116,4 @@ config MPC85xx
        select FSL_PCI if PCI
        select SERIAL_8250_SHARE_IRQ if SERIAL_8250
        default y if MPC8540_ADS || MPC85xx_CDS || MPC8560_ADS \
-               || MPC85xx_MDS || MPC85xx_DS || STX_GP3 || SBC8560
+               || MPC85xx_MDS || MPC85xx_DS || STX_GP3 || SBC8560 || SBC8548

diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index 698f9f950504e5a92eefe158aefc1a30db684bc0..cb7af4ebd75f78d44b6a2bf3237a9097a2d256e3 100644 (file)
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -9,3 +9,4 @@ obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o
 obj-$(CONFIG_STX_GP3)    += stx_gp3.o
 obj-$(CONFIG_TQM85xx)    += tqm85xx.o
 obj-$(CONFIG_SBC8560)     += sbc8560.o
+obj-$(CONFIG_SBC8548)     += sbc8548.o

diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c
new file mode 100644 (file)
index 0000000..de27b57
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/sbc8548.c
@@ -0,0 +1,169 @@
+/*
+ * Wind River SBC8548 setup and early boot code.
+ *
+ * Copyright 2007 Wind River Systems Inc.
+ *
+ * By Paul Gortmaker (see MAINTAINERS for contact information)
+ *
+ * Based largely on the MPC8548CDS support - Copyright 2005 Freescale Inc.
+ *
+ *
+ * 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/initrd.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/fsl_devices.h>
+#include <linux/of_platform.h>
+
+#include <asm/system.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/atomic.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+#include <asm/pci-bridge.h>
+#include <asm/irq.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+
+static void __init sbc8548_pic_init(void)
+{
+       struct mpic *mpic;
+       struct resource r;
+       struct device_node *np = NULL;
+
+       np = of_find_node_by_type(np, "open-pic");
+
+       if (np == NULL) {
+               printk(KERN_ERR "Could not find open-pic node\n");
+               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,
+                       0, 256, " OpenPIC  ");
+       BUG_ON(mpic == NULL);
+
+       /* Return the mpic node */
+       of_node_put(np);
+
+       mpic_init(mpic);
+}
+
+/*
+ * Setup the architecture
+ */
+static void __init sbc8548_setup_arch(void)
+{
+#ifdef CONFIG_PCI
+       struct device_node *np;
+#endif
+
+       if (ppc_md.progress)
+               ppc_md.progress("sbc8548_setup_arch()", 0);
+
+#ifdef CONFIG_PCI
+       for_each_node_by_type(np, "pci") {
+               if (of_device_is_compatible(np, "fsl,mpc8540-pci") ||
+                   of_device_is_compatible(np, "fsl,mpc8548-pcie")) {
+                       struct resource rsrc;
+                       of_address_to_resource(np, 0, &rsrc);
+                       if ((rsrc.start & 0xfffff) == 0x8000)
+                               fsl_add_bridge(np, 1);
+                       else
+                               fsl_add_bridge(np, 0);
+               }
+       }
+#endif
+}
+
+static void sbc8548_show_cpuinfo(struct seq_file *m)
+{
+       uint pvid, svid, phid1;
+       uint memsize = total_memory;
+
+       pvid = mfspr(SPRN_PVR);
+       svid = mfspr(SPRN_SVR);
+
+       seq_printf(m, "Vendor\t\t: Wind River\n");
+       seq_printf(m, "Machine\t\t: SBC8548\n");
+       seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
+       seq_printf(m, "SVR\t\t: 0x%x\n", svid);
+
+       /* Display cpu Pll setting */
+       phid1 = mfspr(SPRN_HID1);
+       seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
+
+       /* Display the amount of memory */
+       seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
+}
+
+static struct of_device_id __initdata of_bus_ids[] = {
+       { .name = "soc", },
+       { .type = "soc", },
+       {},
+};
+
+static int __init declare_of_platform_devices(void)
+{
+       if (!machine_is(sbc8548))
+               return 0;
+
+       of_platform_bus_probe(NULL, of_bus_ids, NULL);
+       return 0;
+}
+device_initcall(declare_of_platform_devices);
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init sbc8548_probe(void)
+{
+        unsigned long root = of_get_flat_dt_root();
+
+        return of_flat_dt_is_compatible(root, "SBC8548");
+}
+
+define_machine(sbc8548) {
+       .name           = "SBC8548",
+       .probe          = sbc8548_probe,
+       .setup_arch     = sbc8548_setup_arch,
+       .init_IRQ       = sbc8548_pic_init,
+       .show_cpuinfo   = sbc8548_show_cpuinfo,
+       .get_irq        = mpic_get_irq,
+       .restart        = fsl_rstcr_restart,
+#ifdef CONFIG_PCI
+       .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
+#endif
+       .calibrate_decr = generic_calibrate_decr,
+       .progress       = udbg_progress,
+};