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-rw-r--r--arch/m68k/platform/5407/Makefile18
-rw-r--r--arch/m68k/platform/5407/config.c122
-rw-r--r--arch/m68k/platform/5407/gpio.c49
3 files changed, 189 insertions, 0 deletions
diff --git a/arch/m68k/platform/5407/Makefile b/arch/m68k/platform/5407/Makefile
new file mode 100644
index 00000000000..e83fe148edd
--- /dev/null
+++ b/arch/m68k/platform/5407/Makefile
@@ -0,0 +1,18 @@
1#
2# Makefile for the m68knommu linux kernel.
3#
4
5#
6# If you want to play with the HW breakpoints then you will
7# need to add define this, which will give you a stack backtrace
8# on the console port whenever a DBG interrupt occurs. You have to
9# set up you HW breakpoints to trigger a DBG interrupt:
10#
11# ccflags-y := -DTRAP_DBG_INTERRUPT
12# asflags-y := -DTRAP_DBG_INTERRUPT
13#
14
15asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1
16
17obj-y := config.o gpio.o
18
diff --git a/arch/m68k/platform/5407/config.c b/arch/m68k/platform/5407/config.c
new file mode 100644
index 00000000000..70ea789a400
--- /dev/null
+++ b/arch/m68k/platform/5407/config.c
@@ -0,0 +1,122 @@
1/***************************************************************************/
2
3/*
4 * linux/arch/m68knommu/platform/5407/config.c
5 *
6 * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
7 * Copyright (C) 2000, Lineo (www.lineo.com)
8 */
9
10/***************************************************************************/
11
12#include <linux/kernel.h>
13#include <linux/param.h>
14#include <linux/init.h>
15#include <linux/io.h>
16#include <asm/machdep.h>
17#include <asm/coldfire.h>
18#include <asm/mcfsim.h>
19#include <asm/mcfuart.h>
20
21/***************************************************************************/
22
23static struct mcf_platform_uart m5407_uart_platform[] = {
24 {
25 .mapbase = MCF_MBAR + MCFUART_BASE1,
26 .irq = 73,
27 },
28 {
29 .mapbase = MCF_MBAR + MCFUART_BASE2,
30 .irq = 74,
31 },
32 { },
33};
34
35static struct platform_device m5407_uart = {
36 .name = "mcfuart",
37 .id = 0,
38 .dev.platform_data = m5407_uart_platform,
39};
40
41static struct platform_device *m5407_devices[] __initdata = {
42 &m5407_uart,
43};
44
45/***************************************************************************/
46
47static void __init m5407_uart_init_line(int line, int irq)
48{
49 if (line == 0) {
50 writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR);
51 writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR);
52 mcf_mapirq2imr(irq, MCFINTC_UART0);
53 } else if (line == 1) {
54 writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
55 writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR);
56 mcf_mapirq2imr(irq, MCFINTC_UART1);
57 }
58}
59
60static void __init m5407_uarts_init(void)
61{
62 const int nrlines = ARRAY_SIZE(m5407_uart_platform);
63 int line;
64
65 for (line = 0; (line < nrlines); line++)
66 m5407_uart_init_line(line, m5407_uart_platform[line].irq);
67}
68
69/***************************************************************************/
70
71static void __init m5407_timers_init(void)
72{
73 /* Timer1 is always used as system timer */
74 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3,
75 MCF_MBAR + MCFSIM_TIMER1ICR);
76 mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1);
77
78#ifdef CONFIG_HIGHPROFILE
79 /* Timer2 is to be used as a high speed profile timer */
80 writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3,
81 MCF_MBAR + MCFSIM_TIMER2ICR);
82 mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2);
83#endif
84}
85
86/***************************************************************************/
87
88void m5407_cpu_reset(void)
89{
90 local_irq_disable();
91 /* set watchdog to soft reset, and enabled */
92 __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR);
93 for (;;)
94 /* wait for watchdog to timeout */;
95}
96
97/***************************************************************************/
98
99void __init config_BSP(char *commandp, int size)
100{
101 mach_reset = m5407_cpu_reset;
102 m5407_timers_init();
103 m5407_uarts_init();
104
105 /* Only support the external interrupts on their primary level */
106 mcf_mapirq2imr(25, MCFINTC_EINT1);
107 mcf_mapirq2imr(27, MCFINTC_EINT3);
108 mcf_mapirq2imr(29, MCFINTC_EINT5);
109 mcf_mapirq2imr(31, MCFINTC_EINT7);
110}
111
112/***************************************************************************/
113
114static int __init init_BSP(void)
115{
116 platform_add_devices(m5407_devices, ARRAY_SIZE(m5407_devices));
117 return 0;
118}
119
120arch_initcall(init_BSP);
121
122/***************************************************************************/
diff --git a/arch/m68k/platform/5407/gpio.c b/arch/m68k/platform/5407/gpio.c
new file mode 100644
index 00000000000..5850612b4a3
--- /dev/null
+++ b/arch/m68k/platform/5407/gpio.c
@@ -0,0 +1,49 @@
1/*
2 * Coldfire generic GPIO support
3 *
4 * (C) Copyright 2009, Steven King <sfking@fdwdc.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14*/
15
16#include <linux/kernel.h>
17#include <linux/init.h>
18
19#include <asm/coldfire.h>
20#include <asm/mcfsim.h>
21#include <asm/mcfgpio.h>
22
23static struct mcf_gpio_chip mcf_gpio_chips[] = {
24 {
25 .gpio_chip = {
26 .label = "PP",
27 .request = mcf_gpio_request,
28 .free = mcf_gpio_free,
29 .direction_input = mcf_gpio_direction_input,
30 .direction_output = mcf_gpio_direction_output,
31 .get = mcf_gpio_get_value,
32 .set = mcf_gpio_set_value,
33 .ngpio = 16,
34 },
35 .pddr = (void __iomem *) MCFSIM_PADDR,
36 .podr = (void __iomem *) MCFSIM_PADAT,
37 .ppdr = (void __iomem *) MCFSIM_PADAT,
38 },
39};
40
41static int __init mcf_gpio_init(void)
42{
43 unsigned i = 0;
44 while (i < ARRAY_SIZE(mcf_gpio_chips))
45 (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]);
46 return 0;
47}
48
49core_initcall(mcf_gpio_init);
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-22 06:34:10 -0400