v4.19.13 snapshot.
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
new file mode 100644
index 0000000..1f614fb
--- /dev/null
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -0,0 +1,236 @@
+/*
+ * FSL SoC setup code
+ *
+ * Maintained by Kumar Gala (see MAINTAINERS for contact information)
+ *
+ * 2006 (c) MontaVista Software, Inc.
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * 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/major.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/export.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/phy.h>
+#include <linux/spi/spi.h>
+#include <linux/fsl_devices.h>
+#include <linux/fs_enet_pd.h>
+#include <linux/fs_uart_pd.h>
+#include <linux/reboot.h>
+
+#include <linux/atomic.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/time.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+#include <sysdev/fsl_soc.h>
+#include <mm/mmu_decl.h>
+#include <asm/cpm2.h>
+#include <asm/fsl_hcalls.h> /* For the Freescale hypervisor */
+
+extern void init_fcc_ioports(struct fs_platform_info*);
+extern void init_fec_ioports(struct fs_platform_info*);
+extern void init_smc_ioports(struct fs_uart_platform_info*);
+static phys_addr_t immrbase = -1;
+
+phys_addr_t get_immrbase(void)
+{
+ struct device_node *soc;
+
+ if (immrbase != -1)
+ return immrbase;
+
+ soc = of_find_node_by_type(NULL, "soc");
+ if (soc) {
+ int size;
+ u32 naddr;
+ const __be32 *prop = of_get_property(soc, "#address-cells", &size);
+
+ if (prop && size == 4)
+ naddr = be32_to_cpup(prop);
+ else
+ naddr = 2;
+
+ prop = of_get_property(soc, "ranges", &size);
+ if (prop)
+ immrbase = of_translate_address(soc, prop + naddr);
+
+ of_node_put(soc);
+ }
+
+ return immrbase;
+}
+
+EXPORT_SYMBOL(get_immrbase);
+
+u32 fsl_get_sys_freq(void)
+{
+ static u32 sysfreq = -1;
+ struct device_node *soc;
+
+ if (sysfreq != -1)
+ return sysfreq;
+
+ soc = of_find_node_by_type(NULL, "soc");
+ if (!soc)
+ return -1;
+
+ of_property_read_u32(soc, "clock-frequency", &sysfreq);
+ if (sysfreq == -1 || !sysfreq)
+ of_property_read_u32(soc, "bus-frequency", &sysfreq);
+
+ of_node_put(soc);
+ return sysfreq;
+}
+EXPORT_SYMBOL(fsl_get_sys_freq);
+
+#if defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE)
+
+u32 get_brgfreq(void)
+{
+ static u32 brgfreq = -1;
+ struct device_node *node;
+
+ if (brgfreq != -1)
+ return brgfreq;
+
+ node = of_find_compatible_node(NULL, NULL, "fsl,cpm-brg");
+ if (node) {
+ of_property_read_u32(node, "clock-frequency", &brgfreq);
+ of_node_put(node);
+ return brgfreq;
+ }
+
+ /* Legacy device binding -- will go away when no users are left. */
+ node = of_find_node_by_type(NULL, "cpm");
+ if (!node)
+ node = of_find_compatible_node(NULL, NULL, "fsl,qe");
+ if (!node)
+ node = of_find_node_by_type(NULL, "qe");
+
+ if (node) {
+ of_property_read_u32(node, "brg-frequency", &brgfreq);
+ if (brgfreq == -1 || !brgfreq)
+ if (!of_property_read_u32(node, "bus-frequency",
+ &brgfreq))
+ brgfreq /= 2;
+ of_node_put(node);
+ }
+
+ return brgfreq;
+}
+
+EXPORT_SYMBOL(get_brgfreq);
+
+u32 get_baudrate(void)
+{
+ static u32 fs_baudrate = -1;
+ struct device_node *node;
+
+ if (fs_baudrate != -1)
+ return fs_baudrate;
+
+ node = of_find_node_by_type(NULL, "serial");
+ if (node) {
+ of_property_read_u32(node, "current-speed", &fs_baudrate);
+ of_node_put(node);
+ }
+
+ return fs_baudrate;
+}
+
+EXPORT_SYMBOL(get_baudrate);
+#endif /* CONFIG_CPM2 */
+
+#if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx)
+static __be32 __iomem *rstcr;
+
+static int fsl_rstcr_restart(struct notifier_block *this,
+ unsigned long mode, void *cmd)
+{
+ local_irq_disable();
+ /* set reset control register */
+ out_be32(rstcr, 0x2); /* HRESET_REQ */
+
+ return NOTIFY_DONE;
+}
+
+static int __init setup_rstcr(void)
+{
+ struct device_node *np;
+
+ static struct notifier_block restart_handler = {
+ .notifier_call = fsl_rstcr_restart,
+ .priority = 128,
+ };
+
+ for_each_node_by_name(np, "global-utilities") {
+ if ((of_get_property(np, "fsl,has-rstcr", NULL))) {
+ rstcr = of_iomap(np, 0) + 0xb0;
+ if (!rstcr) {
+ printk (KERN_ERR "Error: reset control "
+ "register not mapped!\n");
+ } else {
+ register_restart_handler(&restart_handler);
+ }
+ break;
+ }
+ }
+
+ of_node_put(np);
+
+ return 0;
+}
+
+arch_initcall(setup_rstcr);
+
+#endif
+
+#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
+struct platform_diu_data_ops diu_ops;
+EXPORT_SYMBOL(diu_ops);
+#endif
+
+#ifdef CONFIG_EPAPR_PARAVIRT
+/*
+ * Restart the current partition
+ *
+ * This function should be assigned to the ppc_md.restart function pointer,
+ * to initiate a partition restart when we're running under the Freescale
+ * hypervisor.
+ */
+void __noreturn fsl_hv_restart(char *cmd)
+{
+ pr_info("hv restart\n");
+ fh_partition_restart(-1);
+ while (1) ;
+}
+
+/*
+ * Halt the current partition
+ *
+ * This function should be assigned to the pm_power_off and ppc_md.halt
+ * function pointers, to shut down the partition when we're running under
+ * the Freescale hypervisor.
+ */
+void __noreturn fsl_hv_halt(void)
+{
+ pr_info("hv exit\n");
+ fh_partition_stop(-1);
+ while (1) ;
+}
+#endif