diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/v850/kernel/me2.c |
Linux-2.6.12-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/me2.c')
-rw-r--r-- | arch/v850/kernel/me2.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/v850/kernel/me2.c b/arch/v850/kernel/me2.c new file mode 100644 index 00000000000..6527c218f91 --- /dev/null +++ b/arch/v850/kernel/me2.c @@ -0,0 +1,74 @@ +/* + * arch/v850/kernel/me2.c -- V850E/ME2 chip-specific support + * + * Copyright (C) 2003 NEC Corporation + * Copyright (C) 2003 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/swap.h> +#include <linux/bootmem.h> +#include <linux/irq.h> + +#include <asm/atomic.h> +#include <asm/page.h> +#include <asm/machdep.h> +#include <asm/v850e_timer_d.h> + +#include "mach.h" + +void __init mach_sched_init (struct irqaction *timer_action) +{ + /* Start hardware timer. */ + v850e_timer_d_configure (0, HZ); + /* Install timer interrupt handler. */ + setup_irq (IRQ_INTCMD(0), timer_action); +} + +static struct v850e_intc_irq_init irq_inits[] = { + { "IRQ", 0, NUM_CPU_IRQS, 1, 7 }, + { "INTP", IRQ_INTP(0), IRQ_INTP_NUM, 1, 5 }, + { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 3 }, + { "UBTIRE", IRQ_INTUBTIRE(0), IRQ_INTUBTIRE_NUM, 5, 4 }, + { "UBTIR", IRQ_INTUBTIR(0), IRQ_INTUBTIR_NUM, 5, 4 }, + { "UBTIT", IRQ_INTUBTIT(0), IRQ_INTUBTIT_NUM, 5, 4 }, + { "UBTIF", IRQ_INTUBTIF(0), IRQ_INTUBTIF_NUM, 5, 4 }, + { "UBTITO", IRQ_INTUBTITO(0), IRQ_INTUBTITO_NUM, 5, 4 }, + { 0 } +}; +#define NUM_IRQ_INITS ((sizeof irq_inits / sizeof irq_inits[0]) - 1) + +static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS]; + +/* Initialize V850E/ME2 chip interrupts. */ +void __init me2_init_irqs (void) +{ + v850e_intc_init_irq_types (irq_inits, hw_itypes); +} + +/* Called before configuring an on-chip UART. */ +void me2_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud) +{ + if (chan == 0) { + /* Specify that the relevent pins on the chip should do + serial I/O, not direct I/O. */ + ME2_PORT1_PMC |= 0xC; + /* Specify that we're using the UART, not the CSI device. */ + ME2_PORT1_PFC |= 0xC; + } else if (chan == 1) { + /* Specify that the relevent pins on the chip should do + serial I/O, not direct I/O. */ + ME2_PORT2_PMC |= 0x6; + /* Specify that we're using the UART, not the CSI device. */ + ME2_PORT2_PFC |= 0x6; + } +} |