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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/v850/kernel/teg.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/v850/kernel/teg.c')
-rw-r--r--arch/v850/kernel/teg.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/v850/kernel/teg.c b/arch/v850/kernel/teg.c
new file mode 100644
index 000000000000..495cf8f37bcb
--- /dev/null
+++ b/arch/v850/kernel/teg.c
@@ -0,0 +1,63 @@
1/*
2 * arch/v850/kernel/teg.c -- NB85E-TEG cpu chip
3 *
4 * Copyright (C) 2001,02,03 NEC Electronics Corporation
5 * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
6 *
7 * This file is subject to the terms and conditions of the GNU General
8 * Public License. See the file COPYING in the main directory of this
9 * archive for more details.
10 *
11 * Written by Miles Bader <miles@gnu.org>
12 */
13
14#include <linux/config.h>
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/mm.h>
18#include <linux/swap.h>
19#include <linux/bootmem.h>
20#include <linux/irq.h>
21
22#include <asm/atomic.h>
23#include <asm/page.h>
24#include <asm/machdep.h>
25#include <asm/v850e_timer_d.h>
26
27#include "mach.h"
28
29void __init mach_sched_init (struct irqaction *timer_action)
30{
31 /* Select timer interrupt instead of external pin. */
32 TEG_ISS |= 0x1;
33 /* Start hardware timer. */
34 v850e_timer_d_configure (0, HZ);
35 /* Install timer interrupt handler. */
36 setup_irq (IRQ_INTCMD(0), timer_action);
37}
38
39static struct v850e_intc_irq_init irq_inits[] = {
40 { "IRQ", 0, NUM_CPU_IRQS, 1, 7 },
41 { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 },
42 { "SER", IRQ_INTSER(0), IRQ_INTSER_NUM, 1, 3 },
43 { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 1, 4 },
44 { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 1, 5 },
45 { 0 }
46};
47#define NUM_IRQ_INITS ((sizeof irq_inits / sizeof irq_inits[0]) - 1)
48
49static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
50
51/* Initialize MA chip interrupts. */
52void __init teg_init_irqs (void)
53{
54 v850e_intc_init_irq_types (irq_inits, hw_itypes);
55}
56
57/* Called before configuring an on-chip UART. */
58void teg_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
59{
60 /* Enable UART I/O pins instead of external interrupt pins, and
61 UART interrupts instead of external pin interrupts. */
62 TEG_ISS |= 0x4E;
63}