Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / powerpc / platforms / 83xx / mpc832x_mds.c

diff --git a/kernel/arch/powerpc/platforms/83xx/mpc832x_mds.c b/kernel/arch/powerpc/platforms/83xx/mpc832x_mds.c
new file mode 100644 (file)
index 0000000..8d76220
--- /dev/null
+++ b/kernel/arch/powerpc/platforms/83xx/mpc832x_mds.c
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2006 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Description:
+ * MPC832xE MDS 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/of_platform.h>
+#include <linux/of_device.h>
+
+#include <linux/atomic.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+#include <asm/irq.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+#include <asm/qe.h>
+#include <asm/qe_ic.h>
+
+#include "mpc83xx.h"
+
+#undef DEBUG
+#ifdef DEBUG
+#define DBG(fmt...) udbg_printf(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc832x_sys_setup_arch(void)
+{
+       struct device_node *np;
+       u8 __iomem *bcsr_regs = NULL;
+
+       if (ppc_md.progress)
+               ppc_md.progress("mpc832x_sys_setup_arch()", 0);
+
+       /* Map BCSR area */
+       np = of_find_node_by_name(NULL, "bcsr");
+       if (np) {
+               struct resource res;
+
+               of_address_to_resource(np, 0, &res);
+               bcsr_regs = ioremap(res.start, resource_size(&res));
+               of_node_put(np);
+       }
+
+       mpc83xx_setup_pci();
+
+#ifdef CONFIG_QUICC_ENGINE
+       qe_reset();
+
+       if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
+               par_io_init(np);
+               of_node_put(np);
+
+               for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
+                       par_io_of_config(np);
+       }
+
+       if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
+                       != NULL){
+               /* Reset the Ethernet PHYs */
+#define BCSR8_FETH_RST 0x50
+               clrbits8(&bcsr_regs[8], BCSR8_FETH_RST);
+               udelay(1000);
+               setbits8(&bcsr_regs[8], BCSR8_FETH_RST);
+               iounmap(bcsr_regs);
+               of_node_put(np);
+       }
+#endif                         /* CONFIG_QUICC_ENGINE */
+}
+
+machine_device_initcall(mpc832x_mds, mpc83xx_declare_of_platform_devices);
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc832x_sys_probe(void)
+{
+        unsigned long root = of_get_flat_dt_root();
+
+        return of_flat_dt_is_compatible(root, "MPC832xMDS");
+}
+
+define_machine(mpc832x_mds) {
+       .name           = "MPC832x MDS",
+       .probe          = mpc832x_sys_probe,
+       .setup_arch     = mpc832x_sys_setup_arch,
+       .init_IRQ       = mpc83xx_ipic_and_qe_init_IRQ,
+       .get_irq        = ipic_get_irq,
+       .restart        = mpc83xx_restart,
+       .time_init      = mpc83xx_time_init,
+       .calibrate_decr = generic_calibrate_decr,
+       .progress       = udbg_progress,
+};