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authorAdrian Bunk <bunk@kernel.org>2008-07-23 21:28:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 10:47:24 -0700
commitf606ddf42fd4edc558eeb48bfee66d2c591571d2 (patch)
tree193f00db121201255b2629fce43b99a53c4ec735 /arch/v850/kernel/sim85e2.c
parent99764fa4ceeecba8b9e0a8a5565b418a2e94f83b (diff)
remove the v850 port
Trying to compile the v850 port brings many compile errors, one of them exists since at least kernel 2.6.19. There also seems to be noone willing to bring this port back into a usable state. This patch therefore removes the v850 port. If anyone ever decides to revive the v850 port the code will still be available from older kernels, and it wouldn't be impossible for the port to reenter the kernel if it would become actively maintained again. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/v850/kernel/sim85e2.c')
-rw-r--r--arch/v850/kernel/sim85e2.c195
1 files changed, 0 insertions, 195 deletions
diff --git a/arch/v850/kernel/sim85e2.c b/arch/v850/kernel/sim85e2.c
deleted file mode 100644
index 566dde5e6070..000000000000
--- a/arch/v850/kernel/sim85e2.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * arch/v850/kernel/sim85e2.c -- Machine-specific stuff for
- * V850E2 RTL simulator
- *
- * Copyright (C) 2002,03 NEC Electronics Corporation
- * Copyright (C) 2002,03 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/kernel.h>
-#include <linux/module.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 "mach.h"
-
-
-/* There are 4 possible areas we can use:
-
- IRAM (1MB) is fast for instruction fetches, but slow for data
- DRAM (1020KB) is fast for data, but slow for instructions
- ERAM is cached, so should be fast for both insns and data
- SDRAM is external DRAM, similar to ERAM
-*/
-
-#define INIT_MEMC_FOR_SDRAM
-#define USE_SDRAM_AREA
-#define KERNEL_IN_SDRAM_AREA
-
-#define DCACHE_MODE V850E2_CACHE_BTSC_DCM_WT
-/*#define DCACHE_MODE V850E2_CACHE_BTSC_DCM_WB_ALLOC*/
-
-#ifdef USE_SDRAM_AREA
-#define RAM_START SDRAM_ADDR
-#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
-#else
-/* When we use DRAM, we need to account for the fact that the end of it is
- used for R0_RAM. */
-#define RAM_START DRAM_ADDR
-#define RAM_END R0_RAM_ADDR
-#endif
-
-
-extern void memcons_setup (void);
-
-
-#ifdef KERNEL_IN_SDRAM_AREA
-#define EARLY_INIT_SECTION_ATTR __attribute__ ((section (".early.text")))
-#else
-#define EARLY_INIT_SECTION_ATTR __init
-#endif
-
-void EARLY_INIT_SECTION_ATTR mach_early_init (void)
-{
- /* The sim85e2 simulator tracks `undefined' values, so to make
- debugging easier, we begin by zeroing out all otherwise
- undefined registers. This is not strictly necessary.
-
- The registers we zero are:
- Every GPR except:
- stack-pointer (r3)
- task-pointer (r16)
- our return addr (r31)
- Every system register (SPR) that we know about except for
- the PSW (SPR 5), which we zero except for the
- disable-interrupts bit.
- */
-
- /* GPRs */
- asm volatile (" mov r0, r1 ; mov r0, r2 ");
- asm volatile ("mov r0, r4 ; mov r0, r5 ; mov r0, r6 ; mov r0, r7 ");
- asm volatile ("mov r0, r8 ; mov r0, r9 ; mov r0, r10; mov r0, r11");
- asm volatile ("mov r0, r12; mov r0, r13; mov r0, r14; mov r0, r15");
- asm volatile (" mov r0, r17; mov r0, r18; mov r0, r19");
- asm volatile ("mov r0, r20; mov r0, r21; mov r0, r22; mov r0, r23");
- asm volatile ("mov r0, r24; mov r0, r25; mov r0, r26; mov r0, r27");
- asm volatile ("mov r0, r28; mov r0, r29; mov r0, r30");
-
- /* SPRs */
- asm volatile ("ldsr r0, 0; ldsr r0, 1; ldsr r0, 2; ldsr r0, 3");
- asm volatile ("ldsr r0, 4");
- asm volatile ("addi 0x20, r0, r1; ldsr r1, 5"); /* PSW */
- asm volatile ("ldsr r0, 16; ldsr r0, 17; ldsr r0, 18; ldsr r0, 19");
- asm volatile ("ldsr r0, 20");
-
-
-#ifdef INIT_MEMC_FOR_SDRAM
- /* Settings for SDRAM controller. */
- V850E2_VSWC = 0x0042;
- V850E2_BSC = 0x9286;
- V850E2_BCT(0) = 0xb000; /* was: 0 */
- V850E2_BCT(1) = 0x000b;
- V850E2_ASC = 0;
- V850E2_LBS = 0xa9aa; /* was: 0xaaaa */
- V850E2_LBC(0) = 0;
- V850E2_LBC(1) = 0; /* was: 0x3 */
- V850E2_BCC = 0;
- V850E2_RFS(4) = 0x800a; /* was: 0xf109 */
- V850E2_SCR(4) = 0x2091; /* was: 0x20a1 */
- V850E2_RFS(3) = 0x800c;
- V850E2_SCR(3) = 0x20a1;
- V850E2_DWC(0) = 0;
- V850E2_DWC(1) = 0;
-#endif
-
-#if 0
-#ifdef CONFIG_V850E2_SIM85E2S
- /* Turn on the caches. */
- V850E2_CACHE_BTSC = V850E2_CACHE_BTSC_ICM | DCACHE_MODE;
- V850E2_BHC = 0x1010;
-#elif CONFIG_V850E2_SIM85E2C
- V850E2_CACHE_BTSC |= (V850E2_CACHE_BTSC_ICM | V850E2_CACHE_BTSC_DCM0);
- V850E2_BUSM_BHC = 0xFFFF;
-#endif
-#else
- V850E2_BHC = 0;
-#endif
-
- /* Don't stop the simulator at `halt' instructions. */
- SIM85E2_NOTHAL = 1;
-
- /* Ensure that the simulator halts on a panic, instead of going
- into an infinite loop inside the panic function. */
- panic_timeout = -1;
-}
-
-void __init mach_setup (char **cmdline)
-{
- memcons_setup ();
-}
-
-void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len)
-{
- *ram_start = RAM_START;
- *ram_len = RAM_END - RAM_START;
-}
-
-void __init mach_sched_init (struct irqaction *timer_action)
-{
- /* The simulator actually cycles through all interrupts
- periodically. We just pay attention to IRQ0, which gives us
- 1/64 the rate of the periodic interrupts. */
- setup_irq (0, timer_action);
-}
-
-void mach_gettimeofday (struct timespec *tv)
-{
- tv->tv_sec = 0;
- tv->tv_nsec = 0;
-}
-
-/* Interrupts */
-
-struct v850e_intc_irq_init irq_inits[] = {
- { "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
- { 0 }
-};
-struct hw_interrupt_type hw_itypes[1];
-
-/* Initialize interrupts. */
-void __init mach_init_irqs (void)
-{
- v850e_intc_init_irq_types (irq_inits, hw_itypes);
-}
-
-
-void machine_halt (void) __attribute__ ((noreturn));
-void machine_halt (void)
-{
- SIM85E2_SIMFIN = 0; /* Halt immediately. */
- for (;;) {}
-}
-
-void machine_restart (char *__unused)
-{
- machine_halt ();
-}
-
-void machine_power_off (void)
-{
- machine_halt ();
-}
-