v4.19.13 snapshot.
diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c
new file mode 100644
index 0000000..ead07c2
--- /dev/null
+++ b/arch/mips/lasat/sysctl.c
@@ -0,0 +1,280 @@
+/*
+ * Thomas Horsten <thh@lasat.com>
+ * Copyright (C) 2000 LASAT Networks A/S.
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Routines specific to the LASAT boards
+ */
+#include <linux/types.h>
+#include <asm/lasat/lasat.h>
+
+#include <linux/sysctl.h>
+#include <linux/stddef.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/ctype.h>
+#include <linux/string.h>
+#include <linux/net.h>
+#include <linux/inet.h>
+#include <linux/uaccess.h>
+
+#include <asm/time.h>
+
+#ifdef CONFIG_DS1603
+#include "ds1603.h"
+#endif
+
+
+/* And the same for proc */
+int proc_dolasatstring(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ int r;
+
+ r = proc_dostring(table, write, buffer, lenp, ppos);
+ if ((!write) || r)
+ return r;
+
+ lasat_write_eeprom_info();
+
+ return 0;
+}
+
+#ifdef CONFIG_DS1603
+static int rtctmp;
+
+/* proc function to read/write RealTime Clock */
+int proc_dolasatrtc(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ struct timespec64 ts;
+ int r;
+
+ if (!write) {
+ read_persistent_clock64(&ts);
+ rtctmp = ts.tv_sec;
+ /* check for time < 0 and set to 0 */
+ if (rtctmp < 0)
+ rtctmp = 0;
+ }
+ r = proc_dointvec(table, write, buffer, lenp, ppos);
+ if (r)
+ return r;
+
+ if (write) {
+ /*
+ * Due to the RTC hardware limitation, we can not actually
+ * use the full 64-bit range here.
+ */
+ ts.tv_sec = rtctmp;
+ ts.tv_nsec = 0;
+
+ update_persistent_clock64(ts);
+ }
+
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_INET
+int proc_lasat_ip(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ unsigned int ip;
+ char *p, c;
+ int len;
+ char ipbuf[32];
+
+ if (!table->data || !table->maxlen || !*lenp ||
+ (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+
+ if (write) {
+ len = 0;
+ p = buffer;
+ while (len < *lenp) {
+ if (get_user(c, p++))
+ return -EFAULT;
+ if (c == 0 || c == '\n')
+ break;
+ len++;
+ }
+ if (len >= sizeof(ipbuf)-1)
+ len = sizeof(ipbuf) - 1;
+ if (copy_from_user(ipbuf, buffer, len))
+ return -EFAULT;
+ ipbuf[len] = 0;
+ *ppos += *lenp;
+ /* Now see if we can convert it to a valid IP */
+ ip = in_aton(ipbuf);
+ *(unsigned int *)(table->data) = ip;
+ lasat_write_eeprom_info();
+ } else {
+ ip = *(unsigned int *)(table->data);
+ sprintf(ipbuf, "%d.%d.%d.%d",
+ (ip) & 0xff,
+ (ip >> 8) & 0xff,
+ (ip >> 16) & 0xff,
+ (ip >> 24) & 0xff);
+ len = strlen(ipbuf);
+ if (len > *lenp)
+ len = *lenp;
+ if (len)
+ if (copy_to_user(buffer, ipbuf, len))
+ return -EFAULT;
+ if (len < *lenp) {
+ if (put_user('\n', ((char *) buffer) + len))
+ return -EFAULT;
+ len++;
+ }
+ *lenp = len;
+ *ppos += len;
+ }
+
+ return 0;
+}
+#endif
+
+int proc_lasat_prid(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ int r;
+
+ r = proc_dointvec(table, write, buffer, lenp, ppos);
+ if (r < 0)
+ return r;
+ if (write) {
+ lasat_board_info.li_eeprom_info.prid =
+ lasat_board_info.li_prid;
+ lasat_write_eeprom_info();
+ lasat_init_board_info();
+ }
+ return 0;
+}
+
+extern int lasat_boot_to_service;
+
+static struct ctl_table lasat_table[] = {
+ {
+ .procname = "cpu-hz",
+ .data = &lasat_board_info.li_cpu_hz,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "bus-hz",
+ .data = &lasat_board_info.li_bus_hz,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "bmid",
+ .data = &lasat_board_info.li_bmid,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "prid",
+ .data = &lasat_board_info.li_prid,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_lasat_prid,
+ },
+#ifdef CONFIG_INET
+ {
+ .procname = "ipaddr",
+ .data = &lasat_board_info.li_eeprom_info.ipaddr,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_lasat_ip,
+ },
+ {
+ .procname = "netmask",
+ .data = &lasat_board_info.li_eeprom_info.netmask,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_lasat_ip,
+ },
+#endif
+ {
+ .procname = "passwd_hash",
+ .data = &lasat_board_info.li_eeprom_info.passwd_hash,
+ .maxlen =
+ sizeof(lasat_board_info.li_eeprom_info.passwd_hash),
+ .mode = 0600,
+ .proc_handler = proc_dolasatstring,
+ },
+ {
+ .procname = "boot-service",
+ .data = &lasat_boot_to_service,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+#ifdef CONFIG_DS1603
+ {
+ .procname = "rtc",
+ .data = &rtctmp,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dolasatrtc,
+ },
+#endif
+ {
+ .procname = "namestr",
+ .data = &lasat_board_info.li_namestr,
+ .maxlen = sizeof(lasat_board_info.li_namestr),
+ .mode = 0444,
+ .proc_handler = proc_dostring,
+ },
+ {
+ .procname = "typestr",
+ .data = &lasat_board_info.li_typestr,
+ .maxlen = sizeof(lasat_board_info.li_typestr),
+ .mode = 0444,
+ .proc_handler = proc_dostring,
+ },
+ {}
+};
+
+static struct ctl_table lasat_root_table[] = {
+ {
+ .procname = "lasat",
+ .mode = 0555,
+ .child = lasat_table
+ },
+ {}
+};
+
+static int __init lasat_register_sysctl(void)
+{
+ struct ctl_table_header *lasat_table_header;
+
+ lasat_table_header =
+ register_sysctl_table(lasat_root_table);
+ if (!lasat_table_header) {
+ printk(KERN_ERR "Unable to register LASAT sysctl\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+arch_initcall(lasat_register_sysctl);