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-rw-r--r--arch/m68k/hp300/Makefile6
-rw-r--r--arch/m68k/hp300/README.hp30014
-rw-r--r--arch/m68k/hp300/config.c276
-rw-r--r--arch/m68k/hp300/hp300map.map252
-rw-r--r--arch/m68k/hp300/reboot.S16
-rw-r--r--arch/m68k/hp300/time.c115
-rw-r--r--arch/m68k/hp300/time.h1
7 files changed, 680 insertions, 0 deletions
diff --git a/arch/m68k/hp300/Makefile b/arch/m68k/hp300/Makefile
new file mode 100644
index 000000000..d87376156
--- /dev/null
+++ b/arch/m68k/hp300/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for Linux arch/m68k/hp300 source directory
+#
+
+obj-y := config.o time.o reboot.o
diff --git a/arch/m68k/hp300/README.hp300 b/arch/m68k/hp300/README.hp300
new file mode 100644
index 000000000..47073fbd4
--- /dev/null
+++ b/arch/m68k/hp300/README.hp300
@@ -0,0 +1,14 @@
+HP300 notes
+-----------
+
+The Linux/HP web page is at <http://www.tazenda.demon.co.uk/phil/linux-hp/>
+
+Currently only 9000/340 machines have been tested. Any amount of RAM should
+work now but I've only tried 16MB and 12MB.
+
+The serial console is probably broken at the moment but the Topcat/HIL keyboard
+combination seems to work for me. Your mileage may vary.
+
+The LANCE driver works after a fashion but only if you reset the chip before
+every packet. This doesn't make for very speedy operation.
+
diff --git a/arch/m68k/hp300/config.c b/arch/m68k/hp300/config.c
new file mode 100644
index 000000000..a161d44fd
--- /dev/null
+++ b/arch/m68k/hp300/config.c
@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/m68k/hp300/config.c
+ *
+ * Copyright (C) 1998 Philip Blundell <philb@gnu.org>
+ *
+ * This file contains the HP300-specific initialisation code. It gets
+ * called by setup.c.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/console.h>
+#include <linux/rtc.h>
+
+#include <asm/bootinfo.h>
+#include <asm/bootinfo-hp300.h>
+#include <asm/byteorder.h>
+#include <asm/machdep.h>
+#include <asm/blinken.h>
+#include <asm/io.h> /* readb() and writeb() */
+#include <asm/hp300hw.h>
+
+#include "time.h"
+
+unsigned long hp300_model;
+unsigned long hp300_uart_scode = -1;
+unsigned char hp300_ledstate;
+EXPORT_SYMBOL(hp300_ledstate);
+
+static char s_hp330[] __initdata = "330";
+static char s_hp340[] __initdata = "340";
+static char s_hp345[] __initdata = "345";
+static char s_hp360[] __initdata = "360";
+static char s_hp370[] __initdata = "370";
+static char s_hp375[] __initdata = "375";
+static char s_hp380[] __initdata = "380";
+static char s_hp385[] __initdata = "385";
+static char s_hp400[] __initdata = "400";
+static char s_hp425t[] __initdata = "425t";
+static char s_hp425s[] __initdata = "425s";
+static char s_hp425e[] __initdata = "425e";
+static char s_hp433t[] __initdata = "433t";
+static char s_hp433s[] __initdata = "433s";
+static char *hp300_models[] __initdata = {
+ [HP_320] = NULL,
+ [HP_330] = s_hp330,
+ [HP_340] = s_hp340,
+ [HP_345] = s_hp345,
+ [HP_350] = NULL,
+ [HP_360] = s_hp360,
+ [HP_370] = s_hp370,
+ [HP_375] = s_hp375,
+ [HP_380] = s_hp380,
+ [HP_385] = s_hp385,
+ [HP_400] = s_hp400,
+ [HP_425T] = s_hp425t,
+ [HP_425S] = s_hp425s,
+ [HP_425E] = s_hp425e,
+ [HP_433T] = s_hp433t,
+ [HP_433S] = s_hp433s,
+};
+
+static char hp300_model_name[13] = "HP9000/";
+
+extern void hp300_reset(void);
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+extern int hp300_setup_serial_console(void) __init;
+#endif
+
+int __init hp300_parse_bootinfo(const struct bi_record *record)
+{
+ int unknown = 0;
+ const void *data = record->data;
+
+ switch (be16_to_cpu(record->tag)) {
+ case BI_HP300_MODEL:
+ hp300_model = be32_to_cpup(data);
+ break;
+
+ case BI_HP300_UART_SCODE:
+ hp300_uart_scode = be32_to_cpup(data);
+ break;
+
+ case BI_HP300_UART_ADDR:
+ /* serial port address: ignored here */
+ break;
+
+ default:
+ unknown = 1;
+ }
+
+ return unknown;
+}
+
+#ifdef CONFIG_HEARTBEAT
+static void hp300_pulse(int x)
+{
+ if (x)
+ blinken_leds(0x10, 0);
+ else
+ blinken_leds(0, 0x10);
+}
+#endif
+
+static void hp300_get_model(char *model)
+{
+ strcpy(model, hp300_model_name);
+}
+
+#define RTCBASE 0xf0420000
+#define RTC_DATA 0x1
+#define RTC_CMD 0x3
+
+#define RTC_BUSY 0x02
+#define RTC_DATA_RDY 0x01
+
+#define rtc_busy() (in_8(RTCBASE + RTC_CMD) & RTC_BUSY)
+#define rtc_data_available() (in_8(RTCBASE + RTC_CMD) & RTC_DATA_RDY)
+#define rtc_status() (in_8(RTCBASE + RTC_CMD))
+#define rtc_command(x) out_8(RTCBASE + RTC_CMD, (x))
+#define rtc_read_data() (in_8(RTCBASE + RTC_DATA))
+#define rtc_write_data(x) out_8(RTCBASE + RTC_DATA, (x))
+
+#define RTC_SETREG 0xe0
+#define RTC_WRITEREG 0xc2
+#define RTC_READREG 0xc3
+
+#define RTC_REG_SEC2 0
+#define RTC_REG_SEC1 1
+#define RTC_REG_MIN2 2
+#define RTC_REG_MIN1 3
+#define RTC_REG_HOUR2 4
+#define RTC_REG_HOUR1 5
+#define RTC_REG_WDAY 6
+#define RTC_REG_DAY2 7
+#define RTC_REG_DAY1 8
+#define RTC_REG_MON2 9
+#define RTC_REG_MON1 10
+#define RTC_REG_YEAR2 11
+#define RTC_REG_YEAR1 12
+
+#define RTC_HOUR1_24HMODE 0x8
+
+#define RTC_STAT_MASK 0xf0
+#define RTC_STAT_RDY 0x40
+
+static inline unsigned char hp300_rtc_read(unsigned char reg)
+{
+ unsigned char s, ret;
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ while (rtc_busy());
+ rtc_command(RTC_SETREG);
+ while (rtc_busy());
+ rtc_write_data(reg);
+ while (rtc_busy());
+ rtc_command(RTC_READREG);
+
+ do {
+ while (!rtc_data_available());
+ s = rtc_status();
+ ret = rtc_read_data();
+ } while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);
+
+ local_irq_restore(flags);
+
+ return ret;
+}
+
+static inline unsigned char hp300_rtc_write(unsigned char reg,
+ unsigned char val)
+{
+ unsigned char s, ret;
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ while (rtc_busy());
+ rtc_command(RTC_SETREG);
+ while (rtc_busy());
+ rtc_write_data((val << 4) | reg);
+ while (rtc_busy());
+ rtc_command(RTC_WRITEREG);
+ while (rtc_busy());
+ rtc_command(RTC_READREG);
+
+ do {
+ while (!rtc_data_available());
+ s = rtc_status();
+ ret = rtc_read_data();
+ } while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);
+
+ local_irq_restore(flags);
+
+ return ret;
+}
+
+static int hp300_hwclk(int op, struct rtc_time *t)
+{
+ if (!op) { /* read */
+ t->tm_sec = hp300_rtc_read(RTC_REG_SEC1) * 10 +
+ hp300_rtc_read(RTC_REG_SEC2);
+ t->tm_min = hp300_rtc_read(RTC_REG_MIN1) * 10 +
+ hp300_rtc_read(RTC_REG_MIN2);
+ t->tm_hour = (hp300_rtc_read(RTC_REG_HOUR1) & 3) * 10 +
+ hp300_rtc_read(RTC_REG_HOUR2);
+ t->tm_wday = -1;
+ t->tm_mday = hp300_rtc_read(RTC_REG_DAY1) * 10 +
+ hp300_rtc_read(RTC_REG_DAY2);
+ t->tm_mon = hp300_rtc_read(RTC_REG_MON1) * 10 +
+ hp300_rtc_read(RTC_REG_MON2) - 1;
+ t->tm_year = hp300_rtc_read(RTC_REG_YEAR1) * 10 +
+ hp300_rtc_read(RTC_REG_YEAR2);
+ if (t->tm_year <= 69)
+ t->tm_year += 100;
+ } else {
+ hp300_rtc_write(RTC_REG_SEC1, t->tm_sec / 10);
+ hp300_rtc_write(RTC_REG_SEC2, t->tm_sec % 10);
+ hp300_rtc_write(RTC_REG_MIN1, t->tm_min / 10);
+ hp300_rtc_write(RTC_REG_MIN2, t->tm_min % 10);
+ hp300_rtc_write(RTC_REG_HOUR1,
+ ((t->tm_hour / 10) & 3) | RTC_HOUR1_24HMODE);
+ hp300_rtc_write(RTC_REG_HOUR2, t->tm_hour % 10);
+ hp300_rtc_write(RTC_REG_DAY1, t->tm_mday / 10);
+ hp300_rtc_write(RTC_REG_DAY2, t->tm_mday % 10);
+ hp300_rtc_write(RTC_REG_MON1, (t->tm_mon + 1) / 10);
+ hp300_rtc_write(RTC_REG_MON2, (t->tm_mon + 1) % 10);
+ if (t->tm_year >= 100)
+ t->tm_year -= 100;
+ hp300_rtc_write(RTC_REG_YEAR1, t->tm_year / 10);
+ hp300_rtc_write(RTC_REG_YEAR2, t->tm_year % 10);
+ }
+
+ return 0;
+}
+
+static unsigned int hp300_get_ss(void)
+{
+ return hp300_rtc_read(RTC_REG_SEC1) * 10 +
+ hp300_rtc_read(RTC_REG_SEC2);
+}
+
+static void __init hp300_init_IRQ(void)
+{
+}
+
+void __init config_hp300(void)
+{
+ mach_sched_init = hp300_sched_init;
+ mach_init_IRQ = hp300_init_IRQ;
+ mach_get_model = hp300_get_model;
+ mach_hwclk = hp300_hwclk;
+ mach_get_ss = hp300_get_ss;
+ mach_reset = hp300_reset;
+#ifdef CONFIG_HEARTBEAT
+ mach_heartbeat = hp300_pulse;
+#endif
+ mach_max_dma_address = 0xffffffff;
+
+ if (hp300_model >= HP_330 && hp300_model <= HP_433S &&
+ hp300_model != HP_350) {
+ pr_info("Detected HP9000 model %s\n",
+ hp300_models[hp300_model-HP_320]);
+ strcat(hp300_model_name, hp300_models[hp300_model-HP_320]);
+ } else {
+ panic("Unknown HP9000 Model");
+ }
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+ hp300_setup_serial_console();
+#endif
+}
diff --git a/arch/m68k/hp300/hp300map.map b/arch/m68k/hp300/hp300map.map
new file mode 100644
index 000000000..6b45f0abc
--- /dev/null
+++ b/arch/m68k/hp300/hp300map.map
@@ -0,0 +1,252 @@
+# HP300 kernel keymap. This uses 7 modifier combinations.
+keymaps 0-2,4-5,8,12
+# Change the above line into
+# keymaps 0-2,4-6,8,12
+# in case you want the entries
+# altgr control keycode 83 = Boot
+# altgr control keycode 111 = Boot
+# below.
+#
+# In fact AltGr is used very little, and one more keymap can
+# be saved by mapping AltGr to Alt (and adapting a few entries):
+# keycode 100 = Alt
+#
+keycode 1 =
+keycode 2 = Alt
+keycode 3 = Alt
+keycode 4 = Shift
+keycode 5 = Shift
+keycode 6 = Control
+keycode 7 =
+keycode 8 =
+keycode 9 =
+keycode 10 =
+keycode 11 =
+keycode 12 =
+keycode 13 =
+keycode 14 =
+keycode 15 =
+keycode 16 =
+keycode 17 =
+keycode 18 =
+keycode 19 =
+keycode 20 =
+keycode 21 =
+keycode 22 =
+keycode 23 =
+keycode 24 = b
+keycode 25 = v
+keycode 26 = c
+keycode 27 = x
+keycode 28 = z
+keycode 29 =
+keycode 30 =
+keycode 31 = Escape Delete
+keycode 32 =
+keycode 33 =
+keycode 34 =
+keycode 35 =
+keycode 36 =
+keycode 37 =
+keycode 38 =
+keycode 39 =
+keycode 40 = h
+keycode 41 = g
+keycode 42 = f
+keycode 43 = d
+keycode 44 = s
+keycode 45 = a
+keycode 46 =
+keycode 47 = Caps_Lock
+keycode 48 = u
+keycode 49 = y
+keycode 50 = t
+keycode 51 = r
+keycode 52 = e
+keycode 53 = w
+keycode 54 = q
+keycode 55 = Tab Tab
+ alt keycode 55 = Meta_Tab
+keycode 56 = seven ampersand
+keycode 57 = six asciicircum
+keycode 58 = five percent
+keycode 59 = four dollar
+keycode 60 = three numbersign
+keycode 61 = two at at
+keycode 62 = one exclam exclam
+keycode 63 = grave asciitilde
+ control keycode 63 = nul
+ alt keycode 63 = Meta_grave
+keycode 64 =
+keycode 65 =
+keycode 66 =
+keycode 67 =
+keycode 68 =
+keycode 69 =
+keycode 70 =
+keycode 71 =
+keycode 72 =
+keycode 73 = F4
+ control keycode 73 = Console_4
+keycode 74 = F3
+ control keycode 74 = Console_3
+keycode 75 = F2
+ control keycode 75 = Console_2
+keycode 76 = F1
+ control keycode 76 = Console_1
+keycode 77 =
+keycode 78 =
+keycode 79 =
+keycode 80 =
+keycode 81 = F5
+ control keycode 81 = Console_5
+keycode 82 = F6
+ control keycode 82 = Console_6
+keycode 83 = F7
+ control keycode 83 = Console_7
+keycode 84 = F8
+ control keycode 84 = Console_8
+keycode 85 =
+keycode 86 =
+keycode 87 =
+keycode 88 = eight asterisk asterisk
+keycode 89 = nine parenleft bracketleft
+keycode 90 = zero parenright bracketright
+keycode 91 = minus underscore
+keycode 92 = equal plus
+keycode 93 = BackSpace
+keycode 94 =
+keycode 95 =
+keycode 96 = i
+keycode 97 = o
+keycode 98 = p
+keycode 99 = bracketleft braceleft
+keycode 100 = bracketright braceright
+keycode 101 = backslash bar
+ control keycode 101 = Control_backslash
+ alt keycode 101 = Meta_backslash
+keycode 102 =
+keycode 103 =
+keycode 104 = j
+keycode 105 = k
+keycode 106 = l
+keycode 107 = semicolon colon
+ alt keycode 107 = Meta_semicolon
+keycode 108 = apostrophe quotedbl
+ control keycode 108 = Control_g
+ alt keycode 108 = Meta_apostrophe
+keycode 109 = Return
+keycode 110 =
+keycode 111 =
+keycode 112 = m
+keycode 113 = comma less
+keycode 114 = period greater
+keycode 115 = slash question
+keycode 116 =
+keycode 117 =
+keycode 118 =
+keycode 119 =
+keycode 120 = n
+keycode 121 = space space
+keycode 122 =
+keycode 123 =
+keycode 124 = Left
+keycode 125 = Down
+keycode 126 = Up
+keycode 127 = Right
+string F1 = "\033[[A"
+string F2 = "\033[[B"
+string F3 = "\033[[C"
+string F4 = "\033[[D"
+string F5 = "\033[[E"
+string F6 = "\033[17~"
+string F7 = "\033[18~"
+string F8 = "\033[19~"
+string F9 = "\033[20~"
+string F10 = "\033[21~"
+string F11 = "\033[23~"
+string F12 = "\033[24~"
+string F13 = "\033[25~"
+string F14 = "\033[26~"
+string F15 = "\033[28~"
+string F16 = "\033[29~"
+string F17 = "\033[31~"
+string F18 = "\033[32~"
+string F19 = "\033[33~"
+string F20 = "\033[34~"
+string Find = "\033[1~"
+string Insert = "\033[2~"
+string Remove = "\033[3~"
+string Select = "\033[4~"
+string Prior = "\033[5~"
+string Next = "\033[6~"
+string Macro = "\033[M"
+string Pause = "\033[P"
+compose '`' 'A' to 'À'
+compose '`' 'a' to 'à'
+compose '\'' 'A' to 'Á'
+compose '\'' 'a' to 'á'
+compose '^' 'A' to 'Â'
+compose '^' 'a' to 'â'
+compose '~' 'A' to 'Ã'
+compose '~' 'a' to 'ã'
+compose '"' 'A' to 'Ä'
+compose '"' 'a' to 'ä'
+compose 'O' 'A' to 'Å'
+compose 'o' 'a' to 'å'
+compose '0' 'A' to 'Å'
+compose '0' 'a' to 'å'
+compose 'A' 'A' to 'Å'
+compose 'a' 'a' to 'å'
+compose 'A' 'E' to 'Æ'
+compose 'a' 'e' to 'æ'
+compose ',' 'C' to 'Ç'
+compose ',' 'c' to 'ç'
+compose '`' 'E' to 'È'
+compose '`' 'e' to 'è'
+compose '\'' 'E' to 'É'
+compose '\'' 'e' to 'é'
+compose '^' 'E' to 'Ê'
+compose '^' 'e' to 'ê'
+compose '"' 'E' to 'Ë'
+compose '"' 'e' to 'ë'
+compose '`' 'I' to 'Ì'
+compose '`' 'i' to 'ì'
+compose '\'' 'I' to 'Í'
+compose '\'' 'i' to 'í'
+compose '^' 'I' to 'Î'
+compose '^' 'i' to 'î'
+compose '"' 'I' to 'Ï'
+compose '"' 'i' to 'ï'
+compose '-' 'D' to 'Ð'
+compose '-' 'd' to 'ð'
+compose '~' 'N' to 'Ñ'
+compose '~' 'n' to 'ñ'
+compose '`' 'O' to 'Ò'
+compose '`' 'o' to 'ò'
+compose '\'' 'O' to 'Ó'
+compose '\'' 'o' to 'ó'
+compose '^' 'O' to 'Ô'
+compose '^' 'o' to 'ô'
+compose '~' 'O' to 'Õ'
+compose '~' 'o' to 'õ'
+compose '"' 'O' to 'Ö'
+compose '"' 'o' to 'ö'
+compose '/' 'O' to 'Ø'
+compose '/' 'o' to 'ø'
+compose '`' 'U' to 'Ù'
+compose '`' 'u' to 'ù'
+compose '\'' 'U' to 'Ú'
+compose '\'' 'u' to 'ú'
+compose '^' 'U' to 'Û'
+compose '^' 'u' to 'û'
+compose '"' 'U' to 'Ü'
+compose '"' 'u' to 'ü'
+compose '\'' 'Y' to 'Ý'
+compose '\'' 'y' to 'ý'
+compose 'T' 'H' to 'Þ'
+compose 't' 'h' to 'þ'
+compose 's' 's' to 'ß'
+compose '"' 'y' to 'ÿ'
+compose 's' 'z' to 'ß'
+compose 'i' 'j' to 'ÿ'
diff --git a/arch/m68k/hp300/reboot.S b/arch/m68k/hp300/reboot.S
new file mode 100644
index 000000000..52eb852e6
--- /dev/null
+++ b/arch/m68k/hp300/reboot.S
@@ -0,0 +1,16 @@
+/*
+ * linux/arch/m68k/hp300/reboot.S
+ *
+ * Copyright (C) 1998 Philip Blundell <philb@gnu.org>
+ *
+ * Do the dirty work of rebooting the machine. Basically we need to undo all the
+ * good stuff that head.S did when we started up. The caches and MMU must be
+ * disabled and then we jump back to the PROM. This is a bit gruesome but we put
+ * a brave face on it.
+ */
+
+/* XXX Doesn't work yet. Not sure why and can't be bothered to fix it at the moment. */
+
+ .globl hp300_reset
+hp300_reset:
+ jmp hp300_reset
diff --git a/arch/m68k/hp300/time.c b/arch/m68k/hp300/time.c
new file mode 100644
index 000000000..bfee13e1d
--- /dev/null
+++ b/arch/m68k/hp300/time.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/m68k/hp300/time.c
+ *
+ * Copyright (C) 1998 Philip Blundell <philb@gnu.org>
+ *
+ * This file contains the HP300-specific time handling code.
+ */
+
+#include <asm/ptrace.h>
+#include <linux/clocksource.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+#include <linux/interrupt.h>
+#include <asm/machdep.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/traps.h>
+#include <asm/blinken.h>
+
+static u64 hp300_read_clk(struct clocksource *cs);
+
+static struct clocksource hp300_clk = {
+ .name = "timer",
+ .rating = 250,
+ .read = hp300_read_clk,
+ .mask = CLOCKSOURCE_MASK(32),
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static u32 clk_total, clk_offset;
+
+/* Clock hardware definitions */
+
+#define CLOCKBASE 0xf05f8000
+
+#define CLKCR1 0x1
+#define CLKCR2 0x3
+#define CLKCR3 CLKCR1
+#define CLKSR CLKCR2
+#define CLKMSB1 0x5
+#define CLKLSB1 0x7
+#define CLKMSB2 0x9
+#define CLKMSB3 0xD
+
+#define CLKSR_INT1 BIT(0)
+
+/* This is for machines which generate the exact clock. */
+
+#define HP300_TIMER_CLOCK_FREQ 250000
+#define HP300_TIMER_CYCLES (HP300_TIMER_CLOCK_FREQ / HZ)
+#define INTVAL (HP300_TIMER_CYCLES - 1)
+
+static irqreturn_t hp300_tick(int irq, void *dev_id)
+{
+ irq_handler_t timer_routine = dev_id;
+ unsigned long flags;
+ unsigned long tmp;
+
+ local_irq_save(flags);
+ in_8(CLOCKBASE + CLKSR);
+ asm volatile ("movpw %1@(5),%0" : "=d" (tmp) : "a" (CLOCKBASE));
+ clk_total += INTVAL;
+ clk_offset = 0;
+ timer_routine(0, NULL);
+ local_irq_restore(flags);
+
+ /* Turn off the network and SCSI leds */
+ blinken_leds(0, 0xe0);
+ return IRQ_HANDLED;
+}
+
+static u64 hp300_read_clk(struct clocksource *cs)
+{
+ unsigned long flags;
+ unsigned char lsb, msb, msb_new;
+ u32 ticks;
+
+ local_irq_save(flags);
+ /* Read current timer 1 value */
+ msb = in_8(CLOCKBASE + CLKMSB1);
+again:
+ if ((in_8(CLOCKBASE + CLKSR) & CLKSR_INT1) && msb > 0)
+ clk_offset = INTVAL;
+ lsb = in_8(CLOCKBASE + CLKLSB1);
+ msb_new = in_8(CLOCKBASE + CLKMSB1);
+ if (msb_new != msb) {
+ msb = msb_new;
+ goto again;
+ }
+
+ ticks = INTVAL - ((msb << 8) | lsb);
+ ticks += clk_offset + clk_total;
+ local_irq_restore(flags);
+
+ return ticks;
+}
+
+void __init hp300_sched_init(irq_handler_t vector)
+{
+ out_8(CLOCKBASE + CLKCR2, 0x1); /* select CR1 */
+ out_8(CLOCKBASE + CLKCR1, 0x1); /* reset */
+
+ asm volatile(" movpw %0,%1@(5)" : : "d" (INTVAL), "a" (CLOCKBASE));
+
+ if (request_irq(IRQ_AUTO_6, hp300_tick, IRQF_TIMER, "timer tick", vector))
+ pr_err("Couldn't register timer interrupt\n");
+
+ out_8(CLOCKBASE + CLKCR2, 0x1); /* select CR1 */
+ out_8(CLOCKBASE + CLKCR1, 0x40); /* enable irq */
+
+ clocksource_register_hz(&hp300_clk, HP300_TIMER_CLOCK_FREQ);
+}
diff --git a/arch/m68k/hp300/time.h b/arch/m68k/hp300/time.h
new file mode 100644
index 000000000..1d77b55cc
--- /dev/null
+++ b/arch/m68k/hp300/time.h
@@ -0,0 +1 @@
+extern void hp300_sched_init(irq_handler_t vector);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 02:53:12 +0000