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authorJeff Garzik <jgarzik@pretzel.yyz.us>2005-06-22 13:07:28 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-06-22 13:07:28 -0400
commitff40c6d3d1437ecdf295b8e39adcb06c3d6021ef (patch)
tree3666d029b4bd4df2909dbefd9c7a09e6042b7d32 /arch/ppc/syslib/ppc4xx_kgdb.c
parent8bf62ecee58360749c5f0e68bc97d5e02a6816b1 (diff)
parent2a5a68b840cbab31baab2d9b2e1e6de3b289ae1e (diff)
Merge upstream kernel changes into 'C/H/S support' branch of libata.
Diffstat (limited to 'arch/ppc/syslib/ppc4xx_kgdb.c')
-rw-r--r--arch/ppc/syslib/ppc4xx_kgdb.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/arch/ppc/syslib/ppc4xx_kgdb.c b/arch/ppc/syslib/ppc4xx_kgdb.c
deleted file mode 100644
index fe8668bf8137..000000000000
--- a/arch/ppc/syslib/ppc4xx_kgdb.c
+++ /dev/null
@@ -1,124 +0,0 @@
1#include <linux/config.h>
2#include <linux/types.h>
3#include <asm/ibm4xx.h>
4#include <linux/kernel.h>
5
6
7
8#define LSR_DR 0x01 /* Data ready */
9#define LSR_OE 0x02 /* Overrun */
10#define LSR_PE 0x04 /* Parity error */
11#define LSR_FE 0x08 /* Framing error */
12#define LSR_BI 0x10 /* Break */
13#define LSR_THRE 0x20 /* Xmit holding register empty */
14#define LSR_TEMT 0x40 /* Xmitter empty */
15#define LSR_ERR 0x80 /* Error */
16
17#include <platforms/4xx/ibm_ocp.h>
18
19extern struct NS16550* COM_PORTS[];
20#ifndef NULL
21#define NULL 0x00
22#endif
23
24static volatile struct NS16550 *kgdb_debugport = NULL;
25
26volatile struct NS16550 *
27NS16550_init(int chan)
28{
29 volatile struct NS16550 *com_port;
30 int quot;
31#ifdef BASE_BAUD
32 quot = BASE_BAUD / 9600;
33#else
34 quot = 0x000c; /* 0xc = 9600 baud (on a pc) */
35#endif
36
37 com_port = (struct NS16550 *) COM_PORTS[chan];
38
39 com_port->lcr = 0x00;
40 com_port->ier = 0xFF;
41 com_port->ier = 0x00;
42 com_port->lcr = com_port->lcr | 0x80; /* Access baud rate */
43 com_port->dll = ( quot & 0x00ff ); /* 0xc = 9600 baud */
44 com_port->dlm = ( quot & 0xff00 ) >> 8;
45 com_port->lcr = 0x03; /* 8 data, 1 stop, no parity */
46 com_port->mcr = 0x00; /* RTS/DTR */
47 com_port->fcr = 0x07; /* Clear & enable FIFOs */
48
49 return( com_port );
50}
51
52
53void
54NS16550_putc(volatile struct NS16550 *com_port, unsigned char c)
55{
56 while ((com_port->lsr & LSR_THRE) == 0)
57 ;
58 com_port->thr = c;
59 return;
60}
61
62unsigned char
63NS16550_getc(volatile struct NS16550 *com_port)
64{
65 while ((com_port->lsr & LSR_DR) == 0)
66 ;
67 return (com_port->rbr);
68}
69
70unsigned char
71NS16550_tstc(volatile struct NS16550 *com_port)
72{
73 return ((com_port->lsr & LSR_DR) != 0);
74}
75
76
77#if defined(CONFIG_KGDB_TTYS0)
78#define KGDB_PORT 0
79#elif defined(CONFIG_KGDB_TTYS1)
80#define KGDB_PORT 1
81#elif defined(CONFIG_KGDB_TTYS2)
82#define KGDB_PORT 2
83#elif defined(CONFIG_KGDB_TTYS3)
84#define KGDB_PORT 3
85#else
86#error "invalid kgdb_tty port"
87#endif
88
89void putDebugChar( unsigned char c )
90{
91 if ( kgdb_debugport == NULL )
92 kgdb_debugport = NS16550_init(KGDB_PORT);
93 NS16550_putc( kgdb_debugport, c );
94}
95
96int getDebugChar( void )
97{
98 if (kgdb_debugport == NULL)
99 kgdb_debugport = NS16550_init(KGDB_PORT);
100
101 return(NS16550_getc(kgdb_debugport));
102}
103
104void kgdb_interruptible(int enable)
105{
106 return;
107}
108
109void putDebugString(char* str)
110{
111 while (*str != '\0') {
112 putDebugChar(*str);
113 str++;
114 }
115 putDebugChar('\r');
116 return;
117}
118
119void
120kgdb_map_scc(void)
121{
122 printk("kgdb init \n");
123 kgdb_debugport = NS16550_init(KGDB_PORT);
124}