blob: d299f7b8768a9981640733e60b51b5bb106a3bfb [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/***************************************************************************/
2
3/*
4 * linux/arch/m68knommu/platform/5249/config.c
5 *
6 * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com)
7 */
8
9/***************************************************************************/
10
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#include <linux/param.h>
13#include <linux/init.h>
Greg Ungerereaefd5f2007-02-07 12:03:19 +100014#include <linux/interrupt.h>
Greg Ungerer5f84bd52008-02-01 17:34:30 +100015#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070016#include <asm/machdep.h>
17#include <asm/coldfire.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <asm/mcfsim.h>
Greg Ungerer5f84bd52008-02-01 17:34:30 +100019#include <asm/mcfuart.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
21/***************************************************************************/
22
Linus Torvalds1da177e2005-04-16 15:20:36 -070023void coldfire_reset(void);
24
25/***************************************************************************/
26
Greg Ungerer5f84bd52008-02-01 17:34:30 +100027static struct mcf_platform_uart m5249_uart_platform[] = {
28 {
29 .mapbase = MCF_MBAR + MCFUART_BASE1,
30 .irq = 73,
31 },
32 {
33 .mapbase = MCF_MBAR + MCFUART_BASE2,
34 .irq = 74,
35 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070036};
37
Greg Ungerer5f84bd52008-02-01 17:34:30 +100038static struct platform_device m5249_uart = {
39 .name = "mcfuart",
40 .id = 0,
41 .dev.platform_data = m5249_uart_platform,
42};
43
44static struct platform_device *m5249_devices[] __initdata = {
45 &m5249_uart,
46};
47
48/***************************************************************************/
49
50static void __init m5249_uart_init_line(int line, int irq)
51{
52 if (line == 0) {
53 writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR);
54 writeb(irq, MCFUART_BASE1 + MCFUART_UIVR);
55 mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART1);
56 } else if (line == 1) {
57 writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
58 writeb(irq, MCFUART_BASE2 + MCFUART_UIVR);
59 mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART2);
60 }
61}
62
63static void __init m5249_uarts_init(void)
64{
65 const int nrlines = ARRAY_SIZE(m5249_uart_platform);
66 int line;
67
68 for (line = 0; (line < nrlines); line++)
69 m5249_uart_init_line(line, m5249_uart_platform[line].irq);
70}
71
Linus Torvalds1da177e2005-04-16 15:20:36 -070072
73/***************************************************************************/
74
75void mcf_autovector(unsigned int vec)
76{
77 volatile unsigned char *mbar;
78
79 if ((vec >= 25) && (vec <= 31)) {
80 mbar = (volatile unsigned char *) MCF_MBAR;
81 vec = 0x1 << (vec - 24);
82 *(mbar + MCFSIM_AVR) |= vec;
83 mcf_setimr(mcf_getimr() & ~vec);
84 }
85}
86
87/***************************************************************************/
88
89void mcf_settimericr(unsigned int timer, unsigned int level)
90{
91 volatile unsigned char *icrp;
92 unsigned int icr, imr;
93
94 if (timer <= 2) {
95 switch (timer) {
96 case 2: icr = MCFSIM_TIMER2ICR; imr = MCFSIM_IMR_TIMER2; break;
97 default: icr = MCFSIM_TIMER1ICR; imr = MCFSIM_IMR_TIMER1; break;
98 }
99
100 icrp = (volatile unsigned char *) (MCF_MBAR + icr);
101 *icrp = MCFSIM_ICR_AUTOVEC | (level << 2) | MCFSIM_ICR_PRI3;
102 mcf_setimr(mcf_getimr() & ~imr);
103 }
104}
105
106/***************************************************************************/
107
Greg Ungerer5f84bd52008-02-01 17:34:30 +1000108void __init config_BSP(char *commandp, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109{
110 mcf_setimr(MCFSIM_IMR_MASKALL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 mach_reset = coldfire_reset;
112}
113
114/***************************************************************************/
Greg Ungerer5f84bd52008-02-01 17:34:30 +1000115
116static int __init init_BSP(void)
117{
118 m5249_uarts_init();
119 platform_add_devices(m5249_devices, ARRAY_SIZE(m5249_devices));
120 return 0;
121}
122
123arch_initcall(init_BSP);
124
125/***************************************************************************/