diff options
Diffstat (limited to 'arch/blackfin/mach-bf561')
22 files changed, 1712 insertions, 669 deletions
diff --git a/arch/blackfin/mach-bf561/Kconfig b/arch/blackfin/mach-bf561/Kconfig index 3f4895450bea..638ec38ca470 100644 --- a/arch/blackfin/mach-bf561/Kconfig +++ b/arch/blackfin/mach-bf561/Kconfig @@ -4,9 +4,9 @@ source "arch/blackfin/mach-bf561/boards/Kconfig" menu "BF561 Specific Configuration" -comment "Core B Support" +if (!SMP) -menu "Core B Support" +comment "Core B Support" config BF561_COREB bool "Enable Core B support" @@ -25,7 +25,7 @@ config BF561_COREB_RESET 0 is set, and will reset PC to 0xff600000 when COREB_SRAM_INIT is cleared. -endmenu +endif comment "Interrupt Priority Assignment" @@ -138,7 +138,7 @@ config IRQ_DMA2_11 default 9 config IRQ_TIMER0 int "TIMER 0 Interrupt" - default 10 + default 8 config IRQ_TIMER1 int "TIMER 1 Interrupt" default 10 diff --git a/arch/blackfin/mach-bf561/Makefile b/arch/blackfin/mach-bf561/Makefile index f39235a55783..59e18afe28c6 100644 --- a/arch/blackfin/mach-bf561/Makefile +++ b/arch/blackfin/mach-bf561/Makefile @@ -2,8 +2,7 @@ # arch/blackfin/mach-bf561/Makefile # -extra-y := head.o - obj-y := ints-priority.o dma.o obj-$(CONFIG_BF561_COREB) += coreb.o +obj-$(CONFIG_SMP) += smp.o secondary.o atomic.o diff --git a/arch/blackfin/mach-bf561/atomic.S b/arch/blackfin/mach-bf561/atomic.S new file mode 100644 index 000000000000..9439bc6bd01f --- /dev/null +++ b/arch/blackfin/mach-bf561/atomic.S @@ -0,0 +1,919 @@ +/* + * File: arch/blackfin/mach-bf561/atomic.S + * Author: Philippe Gerum <rpm@xenomai.org> + * + * Copyright 2007 Analog Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <asm/blackfin.h> +#include <asm/cache.h> +#include <asm/asm-offsets.h> +#include <asm/rwlock.h> +#include <asm/cplb.h> + +.text + +.macro coreslot_loadaddr reg:req + \reg\().l = _corelock; + \reg\().h = _corelock; +.endm + +/* + * r0 = address of atomic data to flush and invalidate (32bit). + * + * Clear interrupts and return the old mask. + * We assume that no atomic data can span cachelines. + * + * Clobbers: r2:0, p0 + */ +ENTRY(_get_core_lock) + r1 = -L1_CACHE_BYTES; + r1 = r0 & r1; + cli r0; + coreslot_loadaddr p0; +.Lretry_corelock: + testset (p0); + if cc jump .Ldone_corelock; + SSYNC(r2); + jump .Lretry_corelock +.Ldone_corelock: + p0 = r1; + CSYNC(r2); + flushinv[p0]; + SSYNC(r2); + rts; +ENDPROC(_get_core_lock) + +/* + * r0 = address of atomic data in uncacheable memory region (32bit). + * + * Clear interrupts and return the old mask. + * + * Clobbers: r0, p0 + */ +ENTRY(_get_core_lock_noflush) + cli r0; + coreslot_loadaddr p0; +.Lretry_corelock_noflush: + testset (p0); + if cc jump .Ldone_corelock_noflush; + SSYNC(r2); + jump .Lretry_corelock_noflush +.Ldone_corelock_noflush: + rts; +ENDPROC(_get_core_lock_noflush) + +/* + * r0 = interrupt mask to restore. + * r1 = address of atomic data to flush and invalidate (32bit). + * + * Interrupts are masked on entry (see _get_core_lock). + * Clobbers: r2:0, p0 + */ +ENTRY(_put_core_lock) + /* Write-through cache assumed, so no flush needed here. */ + coreslot_loadaddr p0; + r1 = 0; + [p0] = r1; + SSYNC(r2); + sti r0; + rts; +ENDPROC(_put_core_lock) + +#ifdef __ARCH_SYNC_CORE_DCACHE + +ENTRY(___raw_smp_mark_barrier_asm) + [--sp] = rets; + [--sp] = ( r7:5 ); + [--sp] = r0; + [--sp] = p1; + [--sp] = p0; + call _get_core_lock_noflush; + + /* + * Calculate current core mask + */ + GET_CPUID(p1, r7); + r6 = 1; + r6 <<= r7; + + /* + * Set bit of other cores in barrier mask. Don't change current core bit. + */ + p1.l = _barrier_mask; + p1.h = _barrier_mask; + r7 = [p1]; + r5 = r7 & r6; + r7 = ~r6; + cc = r5 == 0; + if cc jump 1f; + r7 = r7 | r6; +1: + [p1] = r7; + SSYNC(r2); + + call _put_core_lock; + p0 = [sp++]; + p1 = [sp++]; + r0 = [sp++]; + ( r7:5 ) = [sp++]; + rets = [sp++]; + rts; +ENDPROC(___raw_smp_mark_barrier_asm) + +ENTRY(___raw_smp_check_barrier_asm) + [--sp] = rets; + [--sp] = ( r7:5 ); + [--sp] = r0; + [--sp] = p1; + [--sp] = p0; + call _get_core_lock_noflush; + + /* + * Calculate current core mask + */ + GET_CPUID(p1, r7); + r6 = 1; + r6 <<= r7; + + /* + * Clear current core bit in barrier mask if it is set. + */ + p1.l = _barrier_mask; + p1.h = _barrier_mask; + r7 = [p1]; + r5 = r7 & r6; + cc = r5 == 0; + if cc jump 1f; + r6 = ~r6; + r7 = r7 & r6; + [p1] = r7; + SSYNC(r2); + + call _put_core_lock; + + /* + * Invalidate the entire D-cache of current core. + */ + sp += -12; + call _resync_core_dcache + sp += 12; + jump 2f; +1: + call _put_core_lock; +2: + p0 = [sp++]; + p1 = [sp++]; + r0 = [sp++]; + ( r7:5 ) = [sp++]; + rets = [sp++]; + rts; +ENDPROC(___raw_smp_check_barrier_asm) + +/* + * r0 = irqflags + * r1 = address of atomic data + * + * Clobbers: r2:0, p1:0 + */ +_start_lock_coherent: + + [--sp] = rets; + [--sp] = ( r7:6 ); + r7 = r0; + p1 = r1; + + /* + * Determine whether the atomic data was previously + * owned by another CPU (=r6). + */ + GET_CPUID(p0, r2); + r1 = 1; + r1 <<= r2; + r2 = ~r1; + + r1 = [p1]; + r1 >>= 28; /* CPU fingerprints are stored in the high nibble. */ + r6 = r1 & r2; + r1 = [p1]; + r1 <<= 4; + r1 >>= 4; + [p1] = r1; + + /* + * Release the core lock now, but keep IRQs disabled while we are + * performing the remaining housekeeping chores for the current CPU. + */ + coreslot_loadaddr p0; + r1 = 0; + [p0] = r1; + + /* + * If another CPU has owned the same atomic section before us, + * then our D-cached copy of the shared data protected by the + * current spin/write_lock may be obsolete. + */ + cc = r6 == 0; + if cc jump .Lcache_synced + + /* + * Invalidate the entire D-cache of the current core. + */ + sp += -12; + call _resync_core_dcache + sp += 12; + +.Lcache_synced: + SSYNC(r2); + sti r7; + ( r7:6 ) = [sp++]; + rets = [sp++]; + rts + +/* + * r0 = irqflags + * r1 = address of atomic data + * + * Clobbers: r2:0, p1:0 + */ +_end_lock_coherent: + + p1 = r1; + GET_CPUID(p0, r2); + r2 += 28; + r1 = 1; + r1 <<= r2; + r2 = [p1]; + r2 = r1 | r2; + [p1] = r2; + r1 = p1; + jump _put_core_lock; + +#endif /* __ARCH_SYNC_CORE_DCACHE */ + +/* + * r0 = &spinlock->lock + * + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_spin_is_locked_asm) + p1 = r0; + [--sp] = rets; + call _get_core_lock; + r3 = [p1]; + cc = bittst( r3, 0 ); + r3 = cc; + r1 = p1; + call _put_core_lock; + rets = [sp++]; + r0 = r3; + rts; +ENDPROC(___raw_spin_is_locked_asm) + +/* + * r0 = &spinlock->lock + * + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_spin_lock_asm) + p1 = r0; + [--sp] = rets; +.Lretry_spinlock: + call _get_core_lock; + r1 = p1; + r2 = [p1]; + cc = bittst( r2, 0 ); + if cc jump .Lbusy_spinlock +#ifdef __ARCH_SYNC_CORE_DCACHE + r3 = p1; + bitset ( r2, 0 ); /* Raise the lock bit. */ + [p1] = r2; + call _start_lock_coherent +#else + r2 = 1; + [p1] = r2; + call _put_core_lock; +#endif + rets = [sp++]; + rts; + +.Lbusy_spinlock: + /* We don't touch the atomic area if busy, so that flush + will behave like nop in _put_core_lock. */ + call _put_core_lock; + SSYNC(r2); + r0 = p1; + jump .Lretry_spinlock +ENDPROC(___raw_spin_lock_asm) + +/* + * r0 = &spinlock->lock + * + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_spin_trylock_asm) + p1 = r0; + [--sp] = rets; + call _get_core_lock; + r1 = p1; + r3 = [p1]; + cc = bittst( r3, 0 ); + if cc jump .Lfailed_trylock +#ifdef __ARCH_SYNC_CORE_DCACHE + bitset ( r3, 0 ); /* Raise the lock bit. */ + [p1] = r3; + call _start_lock_coherent +#else + r2 = 1; + [p1] = r2; + call _put_core_lock; +#endif + r0 = 1; + rets = [sp++]; + rts; +.Lfailed_trylock: + call _put_core_lock; + r0 = 0; + rets = [sp++]; + rts; +ENDPROC(___raw_spin_trylock_asm) + +/* + * r0 = &spinlock->lock + * + * Clobbers: r2:0, p1:0 + */ +ENTRY(___raw_spin_unlock_asm) + p1 = r0; + [--sp] = rets; + call _get_core_lock; + r2 = [p1]; + bitclr ( r2, 0 ); + [p1] = r2; + r1 = p1; +#ifdef __ARCH_SYNC_CORE_DCACHE + call _end_lock_coherent +#else + call _put_core_lock; +#endif + rets = [sp++]; + rts; +ENDPROC(___raw_spin_unlock_asm) + +/* + * r0 = &rwlock->lock + * + * Clobbers: r2:0, p1:0 + */ +ENTRY(___raw_read_lock_asm) + p1 = r0; + [--sp] = rets; + call _get_core_lock; +.Lrdlock_try: + r1 = [p1]; + r1 += -1; + [p1] = r1; + cc = r1 < 0; + if cc jump .Lrdlock_failed + r1 = p1; +#ifdef __ARCH_SYNC_CORE_DCACHE + call _start_lock_coherent +#else + call _put_core_lock; +#endif + rets = [sp++]; + rts; + +.Lrdlock_failed: + r1 += 1; + [p1] = r1; +.Lrdlock_wait: + r1 = p1; + call _put_core_lock; + SSYNC(r2); + r0 = p1; + call _get_core_lock; + r1 = [p1]; + cc = r1 < 2; + if cc jump .Lrdlock_wait; + jump .Lrdlock_try +ENDPROC(___raw_read_lock_asm) + +/* + * r0 = &rwlock->lock + * + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_read_trylock_asm) + p1 = r0; + [--sp] = rets; + call _get_core_lock; + r1 = [p1]; + cc = r1 <= 0; + if cc jump .Lfailed_tryrdlock; + r1 += -1; + [p1] = r1; + r1 = p1; +#ifdef __ARCH_SYNC_CORE_DCACHE + call _start_lock_coherent +#else + call _put_core_lock; +#endif + rets = [sp++]; + r0 = 1; + rts; +.Lfailed_tryrdlock: + r1 = p1; + call _put_core_lock; + rets = [sp++]; + r0 = 0; + rts; +ENDPROC(___raw_read_trylock_asm) + +/* + * r0 = &rwlock->lock + * + * Note: Processing controlled by a reader lock should not have + * any side-effect on cache issues with the other core, so we + * just release the core lock and exit (no _end_lock_coherent). + * + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_read_unlock_asm) + p1 = r0; + [--sp] = rets; + call _get_core_lock; + r1 = [p1]; + r1 += 1; + [p1] = r1; + r1 = p1; + call _put_core_lock; + rets = [sp++]; + rts; +ENDPROC(___raw_read_unlock_asm) + +/* + * r0 = &rwlock->lock + * + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_write_lock_asm) + p1 = r0; + r3.l = lo(RW_LOCK_BIAS); + r3.h = hi(RW_LOCK_BIAS); + [--sp] = rets; + call _get_core_lock; +.Lwrlock_try: + r1 = [p1]; + r1 = r1 - r3; +#ifdef __ARCH_SYNC_CORE_DCACHE + r2 = r1; + r2 <<= 4; + r2 >>= 4; + cc = r2 == 0; +#else + cc = r1 == 0; +#endif + if !cc jump .Lwrlock_wait + [p1] = r1; + r1 = p1; +#ifdef __ARCH_SYNC_CORE_DCACHE + call _start_lock_coherent +#else + call _put_core_lock; +#endif + rets = [sp++]; + rts; + +.Lwrlock_wait: + r1 = p1; + call _put_core_lock; + SSYNC(r2); + r0 = p1; + call _get_core_lock; + r1 = [p1]; +#ifdef __ARCH_SYNC_CORE_DCACHE + r1 <<= 4; + r1 >>= 4; +#endif + cc = r1 == r3; + if !cc jump .Lwrlock_wait; + jump .Lwrlock_try +ENDPROC(___raw_write_lock_asm) + +/* + * r0 = &rwlock->lock + * + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_write_trylock_asm) + p1 = r0; + [--sp] = rets; + call _get_core_lock; + r1 = [p1]; + r2.l = lo(RW_LOCK_BIAS); + r2.h = hi(RW_LOCK_BIAS); + cc = r1 == r2; + if !cc jump .Lfailed_trywrlock; +#ifdef __ARCH_SYNC_CORE_DCACHE + r1 >>= 28; + r1 <<= 28; +#else + r1 = 0; +#endif + [p1] = r1; + r1 = p1; +#ifdef __ARCH_SYNC_CORE_DCACHE + call _start_lock_coherent +#else + call _put_core_lock; +#endif + rets = [sp++]; + r0 = 1; + rts; + +.Lfailed_trywrlock: + r1 = p1; + call _put_core_lock; + rets = [sp++]; + r0 = 0; + rts; +ENDPROC(___raw_write_trylock_asm) + +/* + * r0 = &rwlock->lock + * + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_write_unlock_asm) + p1 = r0; + r3.l = lo(RW_LOCK_BIAS); + r3.h = hi(RW_LOCK_BIAS); + [--sp] = rets; + call _get_core_lock; + r1 = [p1]; + r1 = r1 + r3; + [p1] = r1; + r1 = p1; +#ifdef __ARCH_SYNC_CORE_DCACHE + call _end_lock_coherent +#else + call _put_core_lock; +#endif + rets = [sp++]; + rts; +ENDPROC(___raw_write_unlock_asm) + +/* + * r0 = ptr + * r1 = value + * + * Add a signed value to a 32bit word and return the new value atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_atomic_update_asm) + p1 = r0; + r3 = r1; + [--sp] = rets; + call _get_core_lock; + r2 = [p1]; + r3 = r3 + r2; + [p1] = r3; + r1 = p1; + call _put_core_lock; + r0 = r3; + rets = [sp++]; + rts; +ENDPROC(___raw_atomic_update_asm) + +/* + * r0 = ptr + * r1 = mask + * + * Clear the mask bits from a 32bit word and return the old 32bit value + * atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_atomic_clear_asm) + p1 = r0; + r3 = ~r1; + [--sp] = rets; + call _get_core_lock; + r2 = [p1]; + r3 = r2 & r3; + [p1] = r3; + r3 = r2; + r1 = p1; + call _put_core_lock; + r0 = r3; + rets = [sp++]; + rts; +ENDPROC(___raw_atomic_clear_asm) + +/* + * r0 = ptr + * r1 = mask + * + * Set the mask bits into a 32bit word and return the old 32bit value + * atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_atomic_set_asm) + p1 = r0; + r3 = r1; + [--sp] = rets; + call _get_core_lock; + r2 = [p1]; + r3 = r2 | r3; + [p1] = r3; + r3 = r2; + r1 = p1; + call _put_core_lock; + r0 = r3; + rets = [sp++]; + rts; +ENDPROC(___raw_atomic_set_asm) + +/* + * r0 = ptr + * r1 = mask + * + * XOR the mask bits with a 32bit word and return the old 32bit value + * atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_atomic_xor_asm) + p1 = r0; + r3 = r1; + [--sp] = rets; + call _get_core_lock; + r2 = [p1]; + r3 = r2 ^ r3; + [p1] = r3; + r3 = r2; + r1 = p1; + call _put_core_lock; + r0 = r3; + rets = [sp++]; + rts; +ENDPROC(___raw_atomic_xor_asm) + +/* + * r0 = ptr + * r1 = mask + * + * Perform a logical AND between the mask bits and a 32bit word, and + * return the masked value. We need this on this architecture in + * order to invalidate the local cache before testing. + * + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_atomic_test_asm) + p1 = r0; + r3 = r1; + r1 = -L1_CACHE_BYTES; + r1 = r0 & r1; + p0 = r1; + flushinv[p0]; + SSYNC(r2); + r0 = [p1]; + r0 = r0 & r3; + rts; +ENDPROC(___raw_atomic_test_asm) + +/* + * r0 = ptr + * r1 = value + * + * Swap *ptr with value and return the old 32bit value atomically. + * Clobbers: r3:0, p1:0 + */ +#define __do_xchg(src, dst) \ + p1 = r0; \ + r3 = r1; \ + [--sp] = rets; \ + call _get_core_lock; \ + r2 = src; \ + dst = r3; \ + r3 = r2; \ + r1 = p1; \ + call _put_core_lock; \ + r0 = r3; \ + rets = [sp++]; \ + rts; + +ENTRY(___raw_xchg_1_asm) + __do_xchg(b[p1] (z), b[p1]) +ENDPROC(___raw_xchg_1_asm) + +ENTRY(___raw_xchg_2_asm) + __do_xchg(w[p1] (z), w[p1]) +ENDPROC(___raw_xchg_2_asm) + +ENTRY(___raw_xchg_4_asm) + __do_xchg([p1], [p1]) +ENDPROC(___raw_xchg_4_asm) + +/* + * r0 = ptr + * r1 = new + * r2 = old + * + * Swap *ptr with new if *ptr == old and return the previous *ptr + * value atomically. + * + * Clobbers: r3:0, p1:0 + */ +#define __do_cmpxchg(src, dst) \ + [--sp] = rets; \ + [--sp] = r4; \ + p1 = r0; \ + r3 = r1; \ + r4 = r2; \ + call _get_core_lock; \ + r2 = src; \ + cc = r2 == r4; \ + if !cc jump 1f; \ + dst = r3; \ + 1: r3 = r2; \ + r1 = p1; \ + call _put_core_lock; \ + r0 = r3; \ + r4 = [sp++]; \ + rets = [sp++]; \ + rts; + +ENTRY(___raw_cmpxchg_1_asm) + __do_cmpxchg(b[p1] (z), b[p1]) +ENDPROC(___raw_cmpxchg_1_asm) + +ENTRY(___raw_cmpxchg_2_asm) + __do_cmpxchg(w[p1] (z), w[p1]) +ENDPROC(___raw_cmpxchg_2_asm) + +ENTRY(___raw_cmpxchg_4_asm) + __do_cmpxchg([p1], [p1]) +ENDPROC(___raw_cmpxchg_4_asm) + +/* + * r0 = ptr + * r1 = bitnr + * + * Set a bit in a 32bit word and return the old 32bit value atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_bit_set_asm) + r2 = r1; + r1 = 1; + r1 <<= r2; + jump ___raw_atomic_set_asm +ENDPROC(___raw_bit_set_asm) + +/* + * r0 = ptr + * r1 = bitnr + * + * Clear a bit in a 32bit word and return the old 32bit value atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_bit_clear_asm) + r2 = r1; + r1 = 1; + r1 <<= r2; + jump ___raw_atomic_clear_asm +ENDPROC(___raw_bit_clear_asm) + +/* + * r0 = ptr + * r1 = bitnr + * + * Toggle a bit in a 32bit word and return the old 32bit value atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_bit_toggle_asm) + r2 = r1; + r1 = 1; + r1 <<= r2; + jump ___raw_atomic_xor_asm +ENDPROC(___raw_bit_toggle_asm) + +/* + * r0 = ptr + * r1 = bitnr + * + * Test-and-set a bit in a 32bit word and return the old bit value atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_bit_test_set_asm) + [--sp] = rets; + [--sp] = r1; + call ___raw_bit_set_asm + r1 = [sp++]; + r2 = 1; + r2 <<= r1; + r0 = r0 & r2; + cc = r0 == 0; + if cc jump 1f + r0 = 1; +1: + rets = [sp++]; + rts; +ENDPROC(___raw_bit_test_set_asm) + +/* + * r0 = ptr + * r1 = bitnr + * + * Test-and-clear a bit in a 32bit word and return the old bit value atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_bit_test_clear_asm) + [--sp] = rets; + [--sp] = r1; + call ___raw_bit_clear_asm + r1 = [sp++]; + r2 = 1; + r2 <<= r1; + r0 = r0 & r2; + cc = r0 == 0; + if cc jump 1f + r0 = 1; +1: + rets = [sp++]; + rts; +ENDPROC(___raw_bit_test_clear_asm) + +/* + * r0 = ptr + * r1 = bitnr + * + * Test-and-toggle a bit in a 32bit word, + * and return the old bit value atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_bit_test_toggle_asm) + [--sp] = rets; + [--sp] = r1; + call ___raw_bit_toggle_asm + r1 = [sp++]; + r2 = 1; + r2 <<= r1; + r0 = r0 & r2; + cc = r0 == 0; + if cc jump 1f + r0 = 1; +1: + rets = [sp++]; + rts; +ENDPROC(___raw_bit_test_toggle_asm) + +/* + * r0 = ptr + * r1 = bitnr + * + * Test a bit in a 32bit word and return its value. + * We need this on this architecture in order to invalidate + * the local cache before testing. + * + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_bit_test_asm) + r2 = r1; + r1 = 1; + r1 <<= r2; + jump ___raw_atomic_test_asm +ENDPROC(___raw_bit_test_asm) + +/* + * r0 = ptr + * + * Fetch and return an uncached 32bit value. + * + * Clobbers: r2:0, p1:0 + */ +ENTRY(___raw_uncached_fetch_asm) + p1 = r0; + r1 = -L1_CACHE_BYTES; + r1 = r0 & r1; + p0 = r1; + flushinv[p0]; + SSYNC(r2); + r0 = [p1]; + rts; +ENDPROC(___raw_uncached_fetch_asm) diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c index 8f40990eea2f..6880d1ebfe60 100644 --- a/arch/blackfin/mach-bf561/boards/cm_bf561.c +++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c @@ -230,6 +230,19 @@ static struct platform_device smc91x_device = { }; #endif +static struct resource bfin_gpios_resources = { + .start = 0, + .end = MAX_BLACKFIN_GPIOS - 1, + .flags = IORESOURCE_IRQ, +}; + +static struct platform_device bfin_gpios_device = { + .name = "simple-gpio", + .id = -1, + .num_resources = 1, + .resource = &bfin_gpios_resources, +}; + #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) static struct resource isp1362_hcd_resources[] = { { @@ -287,23 +300,33 @@ static struct platform_device bfin_uart_device = { #endif #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) -static struct resource bfin_sir_resources[] = { #ifdef CONFIG_BFIN_SIR0 +static struct resource bfin_sir0_resources[] = { { .start = 0xFFC00400, .end = 0xFFC004FF, .flags = IORESOURCE_MEM, }, -#endif + { + .start = IRQ_UART0_RX, + .end = IRQ_UART0_RX+1, + .flags = IORESOURCE_IRQ, + }, + { + .start = CH_UART0_RX, + .end = CH_UART0_RX+1, + .flags = IORESOURCE_DMA, + }, }; -static struct platform_device bfin_sir_device = { +static struct platform_device bfin_sir0_device = { .name = "bfin_sir", .id = 0, - .num_resources = ARRAY_SIZE(bfin_sir_resources), - .resource = bfin_sir_resources, + .num_resources = ARRAY_SIZE(bfin_sir0_resources), + .resource = bfin_sir0_resources, }; #endif +#endif #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE) #define PATA_INT IRQ_PF46 @@ -382,7 +405,9 @@ static struct platform_device *cm_bf561_devices[] __initdata = { #endif #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) - &bfin_sir_device, +#ifdef CONFIG_BFIN_SIR0 + &bfin_sir0_device, +#endif #endif #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) @@ -400,6 +425,8 @@ static struct platform_device *cm_bf561_devices[] __initdata = { #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE) &bfin_pata_device, #endif + + &bfin_gpios_device, }; static int __init cm_bf561_init(void) diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c index 50b4cdceccfe..0e2178a1aec5 100644 --- a/arch/blackfin/mach-bf561/boards/ezkit.c +++ b/arch/blackfin/mach-bf561/boards/ezkit.c @@ -43,53 +43,42 @@ /* * Name the Board for the /proc/cpuinfo */ -const char bfin_board_name[] = "ADDS-BF561-EZKIT"; - -#define ISP1761_BASE 0x2C0F0000 -#define ISP1761_IRQ IRQ_PF10 +const char bfin_board_name[] = "ADI BF561-EZKIT"; #if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE) -static struct resource bfin_isp1761_resources[] = { - { - .name = "isp1761-regs", - .start = ISP1761_BASE + 0x00000000, - .end = ISP1761_BASE + 0x000fffff, +#include <linux/usb/isp1760.h> +static struct resource bfin_isp1760_resources[] = { + [0] = { + .start = 0x2C0F0000, + .end = 0x203C0000 + 0xfffff, .flags = IORESOURCE_MEM, }, - { - .start = ISP1761_IRQ, - .end = ISP1761_IRQ, + [1] = { + .start = IRQ_PF10, + .end = IRQ_PF10, .flags = IORESOURCE_IRQ, }, }; -static struct platform_device bfin_isp1761_device = { - .name = "isp1761", - .id = 0, - .num_resources = ARRAY_SIZE(bfin_isp1761_resources), - .resource = bfin_isp1761_resources, +static struct isp1760_platform_data isp1760_priv = { + .is_isp1761 = 0, + .port1_disable = 0, + .bus_width_16 = 1, + .port1_otg = 0, + .analog_oc = 0, + .dack_polarity_high = 0, + .dreq_polarity_high = 0, }; -static struct platform_device *bfin_isp1761_devices[] = { - &bfin_isp1761_device, +static struct platform_device bfin_isp1760_device = { + .name = "isp1760-hcd", + .id = 0, + .dev = { + .platform_data = &isp1760_priv, + }, + .num_resources = ARRAY_SIZE(bfin_isp1760_resources), + .resource = bfin_isp1760_resources, }; - -int __init bfin_isp1761_init(void) -{ - unsigned int num_devices = ARRAY_SIZE(bfin_isp1761_devices); - - printk(KERN_INFO "%s(): registering device resources\n", __func__); - set_irq_type(ISP1761_IRQ, IRQF_TRIGGER_FALLING); - - return platform_add_devices(bfin_isp1761_devices, num_devices); -} - -void __exit bfin_isp1761_exit(void) -{ - platform_device_unregister(&bfin_isp1761_device); -} - -arch_initcall(bfin_isp1761_init); #endif #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) @@ -221,23 +210,33 @@ static struct platform_device bfin_uart_device = { #endif #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) -static struct resource bfin_sir_resources[] = { #ifdef CONFIG_BFIN_SIR0 +static struct resource bfin_sir0_resources[] = { { .start = 0xFFC00400, .end = 0xFFC004FF, .flags = IORESOURCE_MEM, }, -#endif + { + .start = IRQ_UART0_RX, + .end = IRQ_UART0_RX+1, + .flags = IORESOURCE_IRQ, + }, + { + .start = CH_UART0_RX, + .end = CH_UART0_RX+1, + .flags = IORESOURCE_DMA, + }, }; -static struct platform_device bfin_sir_device = { +static struct platform_device bfin_sir0_device = { .name = "bfin_sir", .id = 0, - .num_resources = ARRAY_SIZE(bfin_sir_resources), - .resource = bfin_sir_resources, + .num_resources = ARRAY_SIZE(bfin_sir0_resources), + .resource = bfin_sir0_resources, }; #endif +#endif #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE) static struct mtd_partition ezkit_partitions[] = { @@ -449,6 +448,10 @@ static struct platform_device *ezkit_devices[] __initdata = { &net2272_bfin_device, #endif +#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE) + &bfin_isp1760_device, +#endif + #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) &bfin_spi0_device, #endif @@ -458,7 +461,9 @@ static struct platform_device *ezkit_devices[] __initdata = { #endif #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) - &bfin_sir_device, +#ifdef CONFIG_BFIN_SIR0 + &bfin_sir0_device, +#endif #endif #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) diff --git a/arch/blackfin/mach-bf561/boards/generic_board.c b/arch/blackfin/mach-bf561/boards/generic_board.c index 2faa0072d614..0ba366a0e696 100644 --- a/arch/blackfin/mach-bf561/boards/generic_board.c +++ b/arch/blackfin/mach-bf561/boards/generic_board.c @@ -62,10 +62,45 @@ static struct platform_device smc91x_device = { }; #endif +#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) +#ifdef CONFIG_BFIN_SIR0 +static struct resource bfin_sir0_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, + { + .start = IRQ_UART0_RX, + .end = IRQ_UART0_RX+1, + .flags = IORESOURCE_IRQ, + }, + { + .start = CH_UART0_RX, + .end = CH_UART0_RX+1, + .flags = IORESOURCE_DMA, + }, +}; + +static struct platform_device bfin_sir0_device = { + .name = "bfin_sir", + .id = 0, + .num_resources = ARRAY_SIZE(bfin_sir0_resources), + .resource = bfin_sir0_resources, +}; +#endif +#endif + static struct platform_device *generic_board_devices[] __initdata = { #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) &smc91x_device, #endif + +#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) +#ifdef CONFIG_BFIN_SIR0 + &bfin_sir0_device, +#endif +#endif }; static int __init generic_board_init(void) diff --git a/arch/blackfin/mach-bf561/boards/tepla.c b/arch/blackfin/mach-bf561/boards/tepla.c index c9174b39f98d..6f77dbe952f5 100644 --- a/arch/blackfin/mach-bf561/boards/tepla.c +++ b/arch/blackfin/mach-bf561/boards/tepla.c @@ -44,8 +44,42 @@ static struct platform_device smc91x_device = { .resource = smc91x_resources, }; +#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) +#ifdef CONFIG_BFIN_SIR0 +static struct resource bfin_sir0_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, + { + .start = IRQ_UART0_RX, + .end = IRQ_UART0_RX+1, + .flags = IORESOURCE_IRQ, + }, + { + .start = CH_UART0_RX, + .end = CH_UART0_RX+1, + .flags = IORESOURCE_DMA, + }, +}; + +static struct platform_device bfin_sir0_device = { + .name = "bfin_sir", + .id = 0, + .num_resources = ARRAY_SIZE(bfin_sir0_resources), + .resource = bfin_sir0_resources, +}; +#endif +#endif + static struct platform_device *tepla_devices[] __initdata = { &smc91x_device, +#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) +#ifdef CONFIG_BFIN_SIR0 + &bfin_sir0_device, +#endif +#endif }; static int __init tepla_init(void) diff --git a/arch/blackfin/mach-bf561/dma.c b/arch/blackfin/mach-bf561/dma.c index 24415eb82698..42b0037afe61 100644 --- a/arch/blackfin/mach-bf561/dma.c +++ b/arch/blackfin/mach-bf561/dma.c @@ -31,7 +31,7 @@ #include <asm/blackfin.h> #include <asm/dma.h> -struct dma_register *dma_io_base_addr[MAX_BLACKFIN_DMA_CHANNEL] = { +struct dma_register *dma_io_base_addr[MAX_DMA_CHANNELS] = { (struct dma_register *) DMA1_0_NEXT_DESC_PTR, (struct dma_register *) DMA1_1_NEXT_DESC_PTR, (struct dma_register *) DMA1_2_NEXT_DESC_PTR, diff --git a/arch/blackfin/mach-bf561/head.S b/arch/blackfin/mach-bf561/head.S deleted file mode 100644 index 31a777a9e699..000000000000 --- a/arch/blackfin/mach-bf561/head.S +++ /dev/null @@ -1,136 +0,0 @@ -/* - * File: arch/blackfin/mach-bf561/head.S - * Based on: arch/blackfin/mach-bf533/head.S - * Author: - * - * Created: - * Description: BF561 startup file - * - * Modified: - * Copyright 2004-2006 Analog Devices Inc. - * - * Bugs: Enter bugs at http://blackfin.uclinux.org/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see the file COPYING, or write - * to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <linux/linkage.h> -#include <linux/init.h> -#include <asm/blackfin.h> -#ifdef CONFIG_BFIN_KERNEL_CLOCK -#include <asm/clocks.h> -#include <mach/mem_init.h> -#endif - -.section .l1.text -#ifdef CONFIG_BFIN_KERNEL_CLOCK -ENTRY(_start_dma_code) - p0.h = hi(SICA_IWR0); - p0.l = lo(SICA_IWR0); - r0.l = 0x1; - [p0] = r0; - SSYNC; - - /* - * Set PLL_CTL - * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors - * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK - * - [7] = output delay (add 200ps of delay to mem signals) - * - [6] = input delay (add 200ps of input delay to mem signals) - * - [5] = PDWN : 1=All Clocks off - * - [3] = STOPCK : 1=Core Clock off - * - [1] = PLL_OFF : 1=Disable Power to PLL - * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL - * all other bits set to zero - */ - - p0.h = hi(PLL_LOCKCNT); - p0.l = lo(PLL_LOCKCNT); - r0 = 0x300(Z); - w[p0] = r0.l; - ssync; - - P2.H = hi(EBIU_SDGCTL); - P2.L = lo(EBIU_SDGCTL); - R0 = [P2]; - BITSET (R0, 24); - [P2] = R0; - SSYNC; - - r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ - r0 = r0 << 9; /* Shift it over, */ - r1 = CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ - r0 = r1 | r0; - r1 = PLL_BYPASS; /* Bypass the PLL? */ - r1 = r1 << 8; /* Shift it over */ - r0 = r1 | r0; /* add them all together */ -#ifdef ANOMALY_05000265 - BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ -#endif - - p0.h = hi(PLL_CTL); - p0.l = lo(PLL_CTL); /* Load the address */ - cli r2; /* Disable interrupts */ - ssync; - w[p0] = r0.l; /* Set the value */ - idle; /* Wait for the PLL to stablize */ - sti r2; /* Enable interrupts */ - -.Lcheck_again: - p0.h = hi(PLL_STAT); - p0.l = lo(PLL_STAT); - R0 = W[P0](Z); - CC = BITTST(R0,5); - if ! CC jump .Lcheck_again; - - /* Configure SCLK & CCLK Dividers */ - r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); - p0.h = hi(PLL_DIV); - p0.l = lo(PLL_DIV); - w[p0] = r0.l; - ssync; - - p0.l = lo(EBIU_SDRRC); - p0.h = hi(EBIU_SDRRC); - r0 = mem_SDRRC; - w[p0] = r0.l; - ssync; - - P2.H = hi(EBIU_SDGCTL); - P2.L = lo(EBIU_SDGCTL); - R0 = [P2]; - BITCLR (R0, 24); - p0.h = hi(EBIU_SDSTAT); - p0.l = lo(EBIU_SDSTAT); - r2.l = w[p0]; - cc = bittst(r2,3); - if !cc jump .Lskip; - NOP; - BITSET (R0, 23); -.Lskip: - [P2] = R0; - SSYNC; - - R0.L = lo(mem_SDGCTL); - R0.H = hi(mem_SDGCTL); - R1 = [p2]; - R1 = R1 | R0; - [P2] = R1; - SSYNC; - - RTS; -ENDPROC(_start_dma_code) -#endif /* CONFIG_BFIN_KERNEL_CLOCK */ diff --git a/arch/blackfin/mach-bf561/include/mach/anomaly.h b/arch/blackfin/mach-bf561/include/mach/anomaly.h index 22990df04ae1..1a9e17562821 100644 --- a/arch/blackfin/mach-bf561/include/mach/anomaly.h +++ b/arch/blackfin/mach-bf561/include/mach/anomaly.h @@ -7,7 +7,7 @@ */ /* This file shoule be up to date with: - * - Revision P, 02/08/2008; ADSP-BF561 Blackfin Processor Anomaly List + * - Revision Q, 11/07/2008; ADSP-BF561 Blackfin Processor Anomaly List */ #ifndef _MACH_ANOMALY_H_ @@ -264,6 +264,18 @@ #define ANOMALY_05000371 (1) /* Level-Sensitive External GPIO Wakeups May Cause Indefinite Stall */ #define ANOMALY_05000403 (1) +/* TESTSET Instruction Causes Data Corruption with Writeback Data Cache Enabled */ +#define ANOMALY_05000412 (1) +/* Speculative Fetches Can Cause Undesired External FIFO Operations */ +#define ANOMALY_05000416 (1) +/* Multichannel SPORT Channel Misalignment Under Specific Configuration */ +#define ANOMALY_05000425 (1) +/* Speculative Fetches of Indirect-Pointer Instructions Can Cause False Hardware Errors */ +#define ANOMALY_05000426 (1) +/* Lost/Corrupted L2/L3 Memory Write after Speculative L2 Memory Read by Core B */ +#define ANOMALY_05000428 (__SILICON_REVISION__ > 3) +/* IFLUSH Instruction at End of Hardware Loop Causes Infinite Stall */ +#define ANOMALY_05000443 (1) /* Anomalies that don't exist on this proc */ #define ANOMALY_05000158 (0) @@ -272,5 +284,7 @@ #define ANOMALY_05000311 (0) #define ANOMALY_05000353 (1) #define ANOMALY_05000386 (1) +#define ANOMALY_05000432 (0) +#define ANOMALY_05000435 (0) #endif diff --git a/arch/blackfin/mach-bf561/include/mach/bf561.h b/arch/blackfin/mach-bf561/include/mach/bf561.h index 18b1b3a223ab..9968362a2ee4 100644 --- a/arch/blackfin/mach-bf561/include/mach/bf561.h +++ b/arch/blackfin/mach-bf561/include/mach/bf561.h @@ -215,7 +215,7 @@ #endif #ifndef CPU -#error Unknown CPU type - This kernel doesn't seem to be configured properly +#error "Unknown CPU type - This kernel doesn't seem to be configured properly" #endif #endif /* __MACH_BF561_H__ */ diff --git a/arch/blackfin/mach-bf561/include/mach/bfin_sir.h b/arch/blackfin/mach-bf561/include/mach/bfin_sir.h deleted file mode 100644 index 9bb87e9e2e9b..000000000000 --- a/arch/blackfin/mach-bf561/include/mach/bfin_sir.h +++ /dev/null @@ -1,125 +0,0 @@ -/* - * Blackfin Infra-red Driver - * - * Copyright 2006-2008 Analog Devices Inc. - * - * Enter bugs at http://blackfin.uclinux.org/ - * - * Licensed under the GPL-2 or later. - * - */ - -#include <linux/serial.h> -#include <asm/dma.h> -#include <asm/portmux.h> - -#define SIR_UART_GET_CHAR(port) bfin_read16((port)->membase + OFFSET_RBR) -#define SIR_UART_GET_DLL(port) bfin_read16((port)->membase + OFFSET_DLL) -#define SIR_UART_GET_IER(port) bfin_read16((port)->membase + OFFSET_IER) -#define SIR_UART_GET_DLH(port) bfin_read16((port)->membase + OFFSET_DLH) -#define SIR_UART_GET_IIR(port) bfin_read16((port)->membase + OFFSET_IIR) -#define SIR_UART_GET_LCR(port) bfin_read16((port)->membase + OFFSET_LCR) -#define SIR_UART_GET_GCTL(port) bfin_read16((port)->membase + OFFSET_GCTL) - -#define SIR_UART_PUT_CHAR(port, v) bfin_write16(((port)->membase + OFFSET_THR), v) -#define SIR_UART_PUT_DLL(port, v) bfin_write16(((port)->membase + OFFSET_DLL), v) -#define SIR_UART_PUT_IER(port, v) bfin_write16(((port)->membase + OFFSET_IER), v) -#define SIR_UART_PUT_DLH(port, v) bfin_write16(((port)->membase + OFFSET_DLH), v) -#define SIR_UART_PUT_LCR(port, v) bfin_write16(((port)->membase + OFFSET_LCR), v) -#define SIR_UART_PUT_GCTL(port, v) bfin_write16(((port)->membase + OFFSET_GCTL), v) - -#ifdef CONFIG_SIR_BFIN_DMA -struct dma_rx_buf { - char *buf; - int head; - int tail; - }; -#endif /* CONFIG_SIR_BFIN_DMA */ - -struct bfin_sir_port { - unsigned char __iomem *membase; - unsigned int irq; - unsigned int lsr; - unsigned long clk; - struct net_device *dev; -#ifdef CONFIG_SIR_BFIN_DMA - int tx_done; - struct dma_rx_buf rx_dma_buf; - struct timer_list rx_dma_timer; - int rx_dma_nrows; -#endif /* CONFIG_SIR_BFIN_DMA */ - unsigned int tx_dma_channel; - unsigned int rx_dma_channel; -}; - -struct bfin_sir_port sir_ports[BFIN_UART_NR_PORTS]; - -struct bfin_sir_port_res { - unsigned long base_addr; - int irq; - unsigned int rx_dma_channel; - unsigned int tx_dma_channel; -}; - -struct bfin_sir_port_res bfin_sir_port_resource[] = { -#ifdef CONFIG_BFIN_SIR0 - { - 0xFFC00400, - IRQ_UART_RX, - CH_UART_RX, - CH_UART_TX, - }, -#endif -}; - -int nr_sirs = ARRAY_SIZE(bfin_sir_port_resource); - -struct bfin_sir_self { - struct bfin_sir_port *sir_port; - spinlock_t lock; - unsigned int open; - int speed; - int newspeed; - - struct sk_buff *txskb; - struct sk_buff *rxskb; - struct net_device_stats stats; - struct device *dev; - struct irlap_cb *irlap; - struct qos_info qos; - - iobuff_t tx_buff; - iobuff_t rx_buff; - - struct work_struct work; - int mtt; -}; - -static inline unsigned int SIR_UART_GET_LSR(struct bfin_sir_port *port) -{ - unsigned int lsr = bfin_read16(port->membase + OFFSET_LSR); - port->lsr |= (lsr & (BI|FE|PE|OE)); - return lsr | port->lsr; -} - -static inline void SIR_UART_CLEAR_LSR(struct bfin_sir_port *port) -{ - port->lsr = 0; - bfin_read16(port->membase + OFFSET_LSR); -} - -#define DRIVER_NAME "bfin_sir" - -static int bfin_sir_hw_init(void) -{ - int ret = -ENODEV; -#ifdef CONFIG_BFIN_SIR0 - ret = peripheral_request(P_UART0_TX, DRIVER_NAME); - if (ret) - return ret; - ret = peripheral_request(P_UART0_RX, DRIVER_NAME); - if (ret) - return ret; -#endif - return ret; -} diff --git a/arch/blackfin/mach-bf561/include/mach/blackfin.h b/arch/blackfin/mach-bf561/include/mach/blackfin.h index 0ea8666e6764..f79f6626b7ec 100644 --- a/arch/blackfin/mach-bf561/include/mach/blackfin.h +++ b/arch/blackfin/mach-bf561/include/mach/blackfin.h @@ -66,8 +66,12 @@ #define bfin_read_SIC_IMASK(x) bfin_read32(SICA_IMASK0 + (x << 2)) #define bfin_write_SIC_IMASK(x, val) bfin_write32((SICA_IMASK0 + (x << 2)), val) +#define bfin_read_SICB_IMASK(x) bfin_read32(SICB_IMASK0 + (x << 2)) +#define bfin_write_SICB_IMASK(x, val) bfin_write32((SICB_IMASK0 + (x << 2)), val) #define bfin_read_SIC_ISR(x) bfin_read32(SICA_ISR0 + (x << 2)) #define bfin_write_SIC_ISR(x, val) bfin_write32((SICA_ISR0 + (x << 2)), val) +#define bfin_read_SICB_ISR(x) bfin_read32(SICB_ISR0 + (x << 2)) +#define bfin_write_SICB_ISR(x, val) bfin_write32((SICB_ISR0 + (x << 2)), val) #define BFIN_UART_NR_PORTS 1 diff --git a/arch/blackfin/mach-bf561/include/mach/cdefBF561.h b/arch/blackfin/mach-bf561/include/mach/cdefBF561.h index c14d63402e70..95d609f11c97 100644 --- a/arch/blackfin/mach-bf561/include/mach/cdefBF561.h +++ b/arch/blackfin/mach-bf561/include/mach/cdefBF561.h @@ -39,65 +39,15 @@ /*include core specific register pointer definitions*/ #include <asm/cdef_LPBlackfin.h> -#include <asm/system.h> - /*********************************************************************************** */ /* System MMR Register Map */ /*********************************************************************************** */ /* Clock and System Control (0xFFC00000 - 0xFFC000FF) */ #define bfin_read_PLL_CTL() bfin_read16(PLL_CTL) -/* Writing to PLL_CTL initiates a PLL relock sequence. */ -static __inline__ void bfin_write_PLL_CTL(unsigned int val) -{ - unsigned long flags, iwr0, iwr1; - - if (val == bfin_read_PLL_CTL()) - return; - - local_irq_save(flags); - /* Enable the PLL Wakeup bit in SIC IWR */ - iwr0 = bfin_read32(SICA_IWR0); - iwr1 = bfin_read32(SICA_IWR1); - /* Only allow PPL Wakeup) */ - bfin_write32(SICA_IWR0, IWR_ENABLE(0)); - bfin_write32(SICA_IWR1, 0); - - bfin_write16(PLL_CTL, val); - SSYNC(); - asm("IDLE;"); - - bfin_write32(SICA_IWR0, iwr0); - bfin_write32(SICA_IWR1, iwr1); - local_irq_restore(flags); -} #define bfin_read_PLL_DIV() bfin_read16(PLL_DIV) #define bfin_write_PLL_DIV(val) bfin_write16(PLL_DIV,val) #define bfin_read_VR_CTL() bfin_read16(VR_CTL) -/* Writing to VR_CTL initiates a PLL relock sequence. */ -static __inline__ void bfin_write_VR_CTL(unsigned int val) -{ - unsigned long flags, iwr0, iwr1; - - if (val == bfin_read_VR_CTL()) - return; - - local_irq_save(flags); - /* Enable the PLL Wakeup bit in SIC IWR */ - iwr0 = bfin_read32(SICA_IWR0); - iwr1 = bfin_read32(SICA_IWR1); - /* Only allow PPL Wakeup) */ - bfin_write32(SICA_IWR0, IWR_ENABLE(0)); - bfin_write32(SICA_IWR1, 0); - - bfin_write16(VR_CTL, val); - SSYNC(); - asm("IDLE;"); - - bfin_write32(SICA_IWR0, iwr0); - bfin_write32(SICA_IWR1, iwr1); - local_irq_restore(flags); -} #define bfin_read_PLL_STAT() bfin_read16(PLL_STAT) #define bfin_write_PLL_STAT(val) bfin_write16(PLL_STAT,val) #define bfin_read_PLL_LOCKCNT() bfin_read16(PLL_LOCKCNT) @@ -1576,4 +1526,57 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val) #define bfin_read_MDMA_D0_START_ADDR() bfin_read_MDMA1_D0_START_ADDR() #define bfin_write_MDMA_D0_START_ADDR(val) bfin_write_MDMA1_D0_START_ADDR(val) +/* These need to be last due to the cdef/linux inter-dependencies */ +#include <asm/irq.h> + +/* Writing to PLL_CTL initiates a PLL relock sequence. */ +static __inline__ void bfin_write_PLL_CTL(unsigned int val) +{ + unsigned long flags, iwr0, iwr1; + + if (val == bfin_read_PLL_CTL()) + return; + + local_irq_save_hw(flags); + /* Enable the PLL Wakeup bit in SIC IWR */ + iwr0 = bfin_read32(SICA_IWR0); + iwr1 = bfin_read32(SICA_IWR1); + /* Only allow PPL Wakeup) */ + bfin_write32(SICA_IWR0, IWR_ENABLE(0)); + bfin_write32(SICA_IWR1, 0); + + bfin_write16(PLL_CTL, val); + SSYNC(); + asm("IDLE;"); + + bfin_write32(SICA_IWR0, iwr0); + bfin_write32(SICA_IWR1, iwr1); + local_irq_restore_hw(flags); +} + +/* Writing to VR_CTL initiates a PLL relock sequence. */ +static __inline__ void bfin_write_VR_CTL(unsigned int val) +{ + unsigned long flags, iwr0, iwr1; + + if (val == bfin_read_VR_CTL()) + return; + + local_irq_save_hw(flags); + /* Enable the PLL Wakeup bit in SIC IWR */ + iwr0 = bfin_read32(SICA_IWR0); + iwr1 = bfin_read32(SICA_IWR1); + /* Only allow PPL Wakeup) */ + bfin_write32(SICA_IWR0, IWR_ENABLE(0)); + bfin_write32(SICA_IWR1, 0); + + bfin_write16(VR_CTL, val); + SSYNC(); + asm("IDLE;"); + + bfin_write32(SICA_IWR0, iwr0); + bfin_write32(SICA_IWR1, iwr1); + local_irq_restore_hw(flags); +} + #endif /* _CDEF_BF561_H */ diff --git a/arch/blackfin/mach-bf561/include/mach/defBF561.h b/arch/blackfin/mach-bf561/include/mach/defBF561.h index 4eca2026bb92..d7c509759659 100644 --- a/arch/blackfin/mach-bf561/include/mach/defBF561.h +++ b/arch/blackfin/mach-bf561/include/mach/defBF561.h @@ -912,6 +912,9 @@ #define ACTIVE_PLLDISABLED 0x0004 /* Processor In Active Mode With PLL Disabled */ #define PLL_LOCKED 0x0020 /* PLL_LOCKCNT Has Been Reached */ +/* SICA_SYSCR Masks */ +#define COREB_SRAM_INIT 0x0020 + /* SWRST Mask */ #define SYSTEM_RESET 0x0007 /* Initiates a system software reset */ #define DOUBLE_FAULT_A 0x0008 /* Core A Double Fault Causes Reset */ diff --git a/arch/blackfin/mach-bf561/include/mach/dma.h b/arch/blackfin/mach-bf561/include/mach/dma.h index 8bc46cd89a02..13647c71f1c7 100644 --- a/arch/blackfin/mach-bf561/include/mach/dma.h +++ b/arch/blackfin/mach-bf561/include/mach/dma.h @@ -1,13 +1,17 @@ -/***************************************************************************** -* -* BF-533/2/1 Specific Declarations -* -****************************************************************************/ +/* mach/dma.h - arch-specific DMA defines + * + * Copyright 2004-2008 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ #ifndef _MACH_DMA_H_ #define _MACH_DMA_H_ -#define MAX_BLACKFIN_DMA_CHANNEL 36 +#define MAX_DMA_CHANNELS 36 + +/* [#4267] IMDMA channels have no PERIPHERAL_MAP MMR */ +#define MAX_DMA_SUSPEND_CHANNELS 32 #define CH_PPI0 0 #define CH_PPI (CH_PPI0) diff --git a/arch/blackfin/mach-bf561/include/mach/gpio.h b/arch/blackfin/mach-bf561/include/mach/gpio.h new file mode 100644 index 000000000000..7882f79e1ade --- /dev/null +++ b/arch/blackfin/mach-bf561/include/mach/gpio.h @@ -0,0 +1,68 @@ +/* + * File: arch/blackfin/mach-bf561/include/mach/gpio.h + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * Copyright (C) 2008 Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + + +#ifndef _MACH_GPIO_H_ +#define _MACH_GPIO_H_ + +#define MAX_BLACKFIN_GPIOS 48 + +#define GPIO_PF0 0 +#define GPIO_PF1 1 +#define GPIO_PF2 2 +#define GPIO_PF3 3 +#define GPIO_PF4 4 +#define GPIO_PF5 5 +#define GPIO_PF6 6 +#define GPIO_PF7 7 +#define GPIO_PF8 8 +#define GPIO_PF9 9 +#define GPIO_PF10 10 +#define GPIO_PF11 11 +#define GPIO_PF12 12 +#define GPIO_PF13 13 +#define GPIO_PF14 14 +#define GPIO_PF15 15 +#define GPIO_PF16 16 +#define GPIO_PF17 17 +#define GPIO_PF18 18 +#define GPIO_PF19 19 +#define GPIO_PF20 20 +#define GPIO_PF21 21 +#define GPIO_PF22 22 +#define GPIO_PF23 23 +#define GPIO_PF24 24 +#define GPIO_PF25 25 +#define GPIO_PF26 26 +#define GPIO_PF27 27 +#define GPIO_PF28 28 +#define GPIO_PF29 29 +#define GPIO_PF30 30 +#define GPIO_PF31 31 +#define GPIO_PF32 32 +#define GPIO_PF33 33 +#define GPIO_PF34 34 +#define GPIO_PF35 35 +#define GPIO_PF36 36 +#define GPIO_PF37 37 +#define GPIO_PF38 38 +#define GPIO_PF39 39 +#define GPIO_PF40 40 +#define GPIO_PF41 41 +#define GPIO_PF42 42 +#define GPIO_PF43 43 +#define GPIO_PF44 44 +#define GPIO_PF45 45 +#define GPIO_PF46 46 +#define GPIO_PF47 47 + +#define PORT_FIO0 GPIO_0 +#define PORT_FIO1 GPIO_16 +#define PORT_FIO2 GPIO_32 + +#endif /* _MACH_GPIO_H_ */ diff --git a/arch/blackfin/mach-bf561/include/mach/mem_init.h b/arch/blackfin/mach-bf561/include/mach/mem_init.h deleted file mode 100644 index e163260bca18..000000000000 --- a/arch/blackfin/mach-bf561/include/mach/mem_init.h +++ /dev/null @@ -1,295 +0,0 @@ -/* - * File: include/asm-blackfin/mach-bf561/mem_init.h - * Based on: - * Author: - * - * Created: - * Description: - * - * Rev: - * - * Modified: - * - * Bugs: Enter bugs at http://blackfin.uclinux.org/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. - * If not, write to the Free Software Foundation, - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#if (CONFIG_MEM_MT48LC16M16A2TG_75 || CONFIG_MEM_MT48LC64M4A2FB_7E || CONFIG_MEM_GENERIC_BOARD || CONFIG_MEM_MT48LC8M32B2B5_7) -#if (CONFIG_SCLK_HZ > 119402985) -#define SDRAM_tRP TRP_2 -#define SDRAM_tRP_num 2 -#define SDRAM_tRAS TRAS_7 -#define SDRAM_tRAS_num 7 -#define SDRAM_tRCD TRCD_2 -#define SDRAM_tWR TWR_2 -#endif -#if (CONFIG_SCLK_HZ > 104477612) && (CONFIG_SCLK_HZ <= 119402985) -#define SDRAM_tRP TRP_2 -#define SDRAM_tRP_num 2 -#define SDRAM_tRAS TRAS_6 -#define SDRAM_tRAS_num 6 -#define SDRAM_tRCD TRCD_2 -#define SDRAM_tWR TWR_2 -#endif -#if (CONFIG_SCLK_HZ > 89552239) && (CONFIG_SCLK_HZ <= 104477612) -#define SDRAM_tRP TRP_2 -#define SDRAM_tRP_num 2 -#define SDRAM_tRAS TRAS_5 -#define SDRAM_tRAS_num 5 -#define SDRAM_tRCD TRCD_2 -#define SDRAM_tWR TWR_2 -#endif -#if (CONFIG_SCLK_HZ > 74626866) && (CONFIG_SCLK_HZ <= 89552239) -#define SDRAM_tRP TRP_2 -#define SDRAM_tRP_num 2 -#define SDRAM_tRAS TRAS_4 -#define SDRAM_tRAS_num 4 -#define SDRAM_tRCD TRCD_2 -#define SDRAM_tWR TWR_2 -#endif -#if (CONFIG_SCLK_HZ > 66666667) && (CONFIG_SCLK_HZ <= 74626866) -#define SDRAM_tRP TRP_2 -#define SDRAM_tRP_num 2 -#define SDRAM_tRAS TRAS_3 -#define SDRAM_tRAS_num 3 -#define SDRAM_tRCD TRCD_2 -#define SDRAM_tWR TWR_2 -#endif -#if (CONFIG_SCLK_HZ > 59701493) && (CONFIG_SCLK_HZ <= 66666667) -#define SDRAM_tRP TRP_1 -#define SDRAM_tRP_num 1 -#define SDRAM_tRAS TRAS_4 -#define SDRAM_tRAS_num 3 -#define SDRAM_tRCD TRCD_1 -#define SDRAM_tWR TWR_2 -#endif -#if (CONFIG_SCLK_HZ > 44776119) && (CONFIG_SCLK_HZ <= 59701493) -#define SDRAM_tRP TRP_1 -#define SDRAM_tRP_num 1 -#define SDRAM_tRAS TRAS_3 -#define SDRAM_tRAS_num 3 -#define SDRAM_tRCD TRCD_1 -#define SDRAM_tWR TWR_2 -#endif -#if (CONFIG_SCLK_HZ > 29850746) && (CONFIG_SCLK_HZ <= 44776119) -#define SDRAM_tRP TRP_1 -#define SDRAM_tRP_num 1 -#define SDRAM_tRAS TRAS_2 -#define SDRAM_tRAS_num 2 -#define SDRAM_tRCD TRCD_1 -#define SDRAM_tWR TWR_2 -#endif -#if (CONFIG_SCLK_HZ <= 29850746) -#define SDRAM_tRP TRP_1 -#define SDRAM_tRP_num 1 -#define SDRAM_tRAS TRAS_1 -#define SDRAM_tRAS_num 1 -#define SDRAM_tRCD TRCD_1 -#define SDRAM_tWR TWR_2 -#endif -#endif - -#if (CONFIG_MEM_MT48LC16M16A2TG_75) - /*SDRAM INFORMATION: */ -#define SDRAM_Tref 64 /* Refresh period in milliseconds */ -#define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */ -#define SDRAM_CL CL_3 -#endif - -#if (CONFIG_MEM_MT48LC64M4A2FB_7E) - /*SDRAM INFORMATION: */ -#define SDRAM_Tref 64 /* Refresh period in milliseconds */ -#define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */ -#define SDRAM_CL CL_3 -#endif - -#if (CONFIG_MEM_MT48LC8M32B2B5_7) - /*SDRAM INFORMATION: */ -#define SDRAM_Tref 64 /* Refresh period in milliseconds */ -#define SDRAM_NRA 4096 /* Number of row addresses in SDRAM */ -#define SDRAM_CL CL_3 -#endif - -#if (CONFIG_MEM_GENERIC_BOARD) - /*SDRAM INFORMATION: Modify this for your board */ -#define SDRAM_Tref 64 /* Refresh period in milliseconds */ -#define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */ -#define SDRAM_CL CL_3 -#endif - -/* Equation from section 17 (p17-46) of BF533 HRM */ -#define mem_SDRRC (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num) - -/* Enable SCLK Out */ -#define mem_SDGCTL (SCTLE | SDRAM_CL | SDRAM_tRAS | SDRAM_tRP | SDRAM_tRCD | SDRAM_tWR | PSS) - -#if defined CONFIG_CLKIN_HALF -#define CLKIN_HALF 1 -#else -#define CLKIN_HALF 0 -#endif - -#if defined CONFIG_PLL_BYPASS -#define PLL_BYPASS 1 -#else -#define PLL_BYPASS 0 -#endif - -/***************************************Currently Not Being Used *********************************/ -#define flash_EBIU_AMBCTL_WAT ((CONFIG_FLASH_SPEED_BWAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1 -#define flash_EBIU_AMBCTL_RAT ((CONFIG_FLASH_SPEED_BRAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1 -#define flash_EBIU_AMBCTL_HT ((CONFIG_FLASH_SPEED_BHT * 4) / (4000000000 / CONFIG_SCLK_HZ)) -#define flash_EBIU_AMBCTL_ST ((CONFIG_FLASH_SPEED_BST * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1 -#define flash_EBIU_AMBCTL_TT ((CONFIG_FLASH_SPEED_BTT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1 - -#if (flash_EBIU_AMBCTL_TT > 3) -#define flash_EBIU_AMBCTL0_TT B0TT_4 -#endif -#if (flash_EBIU_AMBCTL_TT == 3) -#define flash_EBIU_AMBCTL0_TT B0TT_3 -#endif -#if (flash_EBIU_AMBCTL_TT == 2) -#define flash_EBIU_AMBCTL0_TT B0TT_2 -#endif -#if (flash_EBIU_AMBCTL_TT < 2) -#define flash_EBIU_AMBCTL0_TT B0TT_1 -#endif - -#if (flash_EBIU_AMBCTL_ST > 3) -#define flash_EBIU_AMBCTL0_ST B0ST_4 -#endif -#if (flash_EBIU_AMBCTL_ST == 3) -#define flash_EBIU_AMBCTL0_ST B0ST_3 -#endif -#if (flash_EBIU_AMBCTL_ST == 2) -#define flash_EBIU_AMBCTL0_ST B0ST_2 -#endif -#if (flash_EBIU_AMBCTL_ST < 2) -#define flash_EBIU_AMBCTL0_ST B0ST_1 -#endif - -#if (flash_EBIU_AMBCTL_HT > 2) -#define flash_EBIU_AMBCTL0_HT B0HT_3 -#endif -#if (flash_EBIU_AMBCTL_HT == 2) -#define flash_EBIU_AMBCTL0_HT B0HT_2 -#endif -#if (flash_EBIU_AMBCTL_HT == 1) -#define flash_EBIU_AMBCTL0_HT B0HT_1 -#endif -#if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT == 0) -#define flash_EBIU_AMBCTL0_HT B0HT_0 -#endif -#if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT != 0) -#define flash_EBIU_AMBCTL0_HT B0HT_1 -#endif - -#if (flash_EBIU_AMBCTL_WAT > 14) -#define flash_EBIU_AMBCTL0_WAT B0WAT_15 -#endif -#if (flash_EBIU_AMBCTL_WAT == 14) -#define flash_EBIU_AMBCTL0_WAT B0WAT_14 -#endif -#if (flash_EBIU_AMBCTL_WAT == 13) -#define flash_EBIU_AMBCTL0_WAT B0WAT_13 -#endif -#if (flash_EBIU_AMBCTL_WAT == 12) -#define flash_EBIU_AMBCTL0_WAT B0WAT_12 -#endif -#if (flash_EBIU_AMBCTL_WAT == 11) -#define flash_EBIU_AMBCTL0_WAT B0WAT_11 -#endif -#if (flash_EBIU_AMBCTL_WAT == 10) -#define flash_EBIU_AMBCTL0_WAT B0WAT_10 -#endif -#if (flash_EBIU_AMBCTL_WAT == 9) -#define flash_EBIU_AMBCTL0_WAT B0WAT_9 -#endif -#if (flash_EBIU_AMBCTL_WAT == 8) -#define flash_EBIU_AMBCTL0_WAT B0WAT_8 -#endif -#if (flash_EBIU_AMBCTL_WAT == 7) -#define flash_EBIU_AMBCTL0_WAT B0WAT_7 -#endif -#if (flash_EBIU_AMBCTL_WAT == 6) -#define flash_EBIU_AMBCTL0_WAT B0WAT_6 -#endif -#if (flash_EBIU_AMBCTL_WAT == 5) -#define flash_EBIU_AMBCTL0_WAT B0WAT_5 -#endif -#if (flash_EBIU_AMBCTL_WAT == 4) -#define flash_EBIU_AMBCTL0_WAT B0WAT_4 -#endif -#if (flash_EBIU_AMBCTL_WAT == 3) -#define flash_EBIU_AMBCTL0_WAT B0WAT_3 -#endif -#if (flash_EBIU_AMBCTL_WAT == 2) -#define flash_EBIU_AMBCTL0_WAT B0WAT_2 -#endif -#if (flash_EBIU_AMBCTL_WAT == 1) -#define flash_EBIU_AMBCTL0_WAT B0WAT_1 -#endif - -#if (flash_EBIU_AMBCTL_RAT > 14) -#define flash_EBIU_AMBCTL0_RAT B0RAT_15 -#endif -#if (flash_EBIU_AMBCTL_RAT == 14) -#define flash_EBIU_AMBCTL0_RAT B0RAT_14 -#endif -#if (flash_EBIU_AMBCTL_RAT == 13) -#define flash_EBIU_AMBCTL0_RAT B0RAT_13 -#endif -#if (flash_EBIU_AMBCTL_RAT == 12) -#define flash_EBIU_AMBCTL0_RAT B0RAT_12 -#endif -#if (flash_EBIU_AMBCTL_RAT == 11) -#define flash_EBIU_AMBCTL0_RAT B0RAT_11 -#endif -#if (flash_EBIU_AMBCTL_RAT == 10) -#define flash_EBIU_AMBCTL0_RAT B0RAT_10 -#endif -#if (flash_EBIU_AMBCTL_RAT == 9) -#define flash_EBIU_AMBCTL0_RAT B0RAT_9 -#endif -#if (flash_EBIU_AMBCTL_RAT == 8) -#define flash_EBIU_AMBCTL0_RAT B0RAT_8 -#endif -#if (flash_EBIU_AMBCTL_RAT == 7) -#define flash_EBIU_AMBCTL0_RAT B0RAT_7 -#endif -#if (flash_EBIU_AMBCTL_RAT == 6) -#define flash_EBIU_AMBCTL0_RAT B0RAT_6 -#endif -#if (flash_EBIU_AMBCTL_RAT == 5) -#define flash_EBIU_AMBCTL0_RAT B0RAT_5 -#endif -#if (flash_EBIU_AMBCTL_RAT == 4) -#define flash_EBIU_AMBCTL0_RAT B0RAT_4 -#endif -#if (flash_EBIU_AMBCTL_RAT == 3) -#define flash_EBIU_AMBCTL0_RAT B0RAT_3 -#endif -#if (flash_EBIU_AMBCTL_RAT == 2) -#define flash_EBIU_AMBCTL0_RAT B0RAT_2 -#endif -#if (flash_EBIU_AMBCTL_RAT == 1) -#define flash_EBIU_AMBCTL0_RAT B0RAT_1 -#endif - -#define flash_EBIU_AMBCTL0 \ - (flash_EBIU_AMBCTL0_WAT | flash_EBIU_AMBCTL0_RAT | flash_EBIU_AMBCTL0_HT | \ - flash_EBIU_AMBCTL0_ST | flash_EBIU_AMBCTL0_TT | CONFIG_FLASH_SPEED_RDYEN) diff --git a/arch/blackfin/mach-bf561/include/mach/mem_map.h b/arch/blackfin/mach-bf561/include/mach/mem_map.h index f1d4c0637bd2..419dffdc96eb 100644 --- a/arch/blackfin/mach-bf561/include/mach/mem_map.h +++ b/arch/blackfin/mach-bf561/include/mach/mem_map.h @@ -85,4 +85,84 @@ #define L1_SCRATCH_START COREA_L1_SCRATCH_START #define L1_SCRATCH_LENGTH 0x1000 +#ifdef __ASSEMBLY__ + +/* + * The following macros both return the address of the PDA for the + * current core. + * + * In its first safe (and hairy) form, the macro neither clobbers any + * register aside of the output Preg, nor uses the stack, since it + * could be called with an invalid stack pointer, or the current stack + * space being uncovered by any CPLB (e.g. early exception handling). + * + * The constraints on the second form are a bit relaxed, and the code + * is allowed to use the specified Dreg for determining the PDA + * address to be returned into Preg. + */ +#ifdef CONFIG_SMP +#define GET_PDA_SAFE(preg) \ + preg.l = lo(DSPID); \ + preg.h = hi(DSPID); \ + preg = [preg]; \ + preg = preg << 2; \ + preg = preg << 2; \ + preg = preg << 2; \ + preg = preg << 2; \ + preg = preg << 2; \ + preg = preg << 2; \ + preg = preg << 2; \ + preg = preg << 2; \ + preg = preg << 2; \ + preg = preg << 2; \ + preg = preg << 2; \ + preg = preg << 2; \ + if cc jump 2f; \ + cc = preg == 0x0; \ + preg.l = _cpu_pda; \ + preg.h = _cpu_pda; \ + if !cc jump 3f; \ +1: \ + /* preg = 0x0; */ \ + cc = !cc; /* restore cc to 0 */ \ + jump 4f; \ +2: \ + cc = preg == 0x0; \ + preg.l = _cpu_pda; \ + preg.h = _cpu_pda; \ + if cc jump 4f; \ + /* preg = 0x1000000; */ \ + cc = !cc; /* restore cc to 1 */ \ +3: \ + preg = [preg]; \ +4: + +#define GET_PDA(preg, dreg) \ + preg.l = lo(DSPID); \ + preg.h = hi(DSPID); \ + dreg = [preg]; \ + preg.l = _cpu_pda; \ + preg.h = _cpu_pda; \ + cc = bittst(dreg, 0); \ + if !cc jump 1f; \ + preg = [preg]; \ +1: \ + +#define GET_CPUID(preg, dreg) \ + preg.l = lo(DSPID); \ + preg.h = hi(DSPID); \ + dreg = [preg]; \ + dreg = ROT dreg BY -1; \ + dreg = CC; + +#else +#define GET_PDA_SAFE(preg) \ + preg.l = _cpu_pda; \ + preg.h = _cpu_pda; + +#define GET_PDA(preg, dreg) GET_PDA_SAFE(preg) +#endif /* CONFIG_SMP */ + +#endif /* __ASSEMBLY__ */ + #endif /* _MEM_MAP_533_H_ */ diff --git a/arch/blackfin/mach-bf561/include/mach/smp.h b/arch/blackfin/mach-bf561/include/mach/smp.h new file mode 100644 index 000000000000..f9e65ebe81b2 --- /dev/null +++ b/arch/blackfin/mach-bf561/include/mach/smp.h @@ -0,0 +1,22 @@ +#ifndef _MACH_BF561_SMP +#define _MACH_BF561_SMP + +struct task_struct; + +void platform_init_cpus(void); + +void platform_prepare_cpus(unsigned int max_cpus); + +int platform_boot_secondary(unsigned int cpu, struct task_struct *idle); + +void platform_secondary_init(unsigned int cpu); + +void platform_request_ipi(int (*handler)(int, void *)); + +void platform_send_ipi(cpumask_t callmap); + +void platform_send_ipi_cpu(unsigned int cpu); + +void platform_clear_ipi(unsigned int cpu); + +#endif /* !_MACH_BF561_SMP */ diff --git a/arch/blackfin/mach-bf561/secondary.S b/arch/blackfin/mach-bf561/secondary.S new file mode 100644 index 000000000000..35280f06b7b6 --- /dev/null +++ b/arch/blackfin/mach-bf561/secondary.S @@ -0,0 +1,215 @@ +/* + * File: arch/blackfin/mach-bf561/secondary.S + * Based on: arch/blackfin/mach-bf561/head.S + * Author: Philippe Gerum <rpm@xenomai.org> + * + * Copyright 2007 Analog Devices Inc. + * + * Description: BF561 coreB bootstrap file + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <linux/init.h> +#include <asm/blackfin.h> +#include <asm/asm-offsets.h> + +__INIT + +/* Lay the initial stack into the L1 scratch area of Core B */ +#define INITIAL_STACK (COREB_L1_SCRATCH_START + L1_SCRATCH_LENGTH - 12) + +ENTRY(_coreb_trampoline_start) + /* Set the SYSCFG register */ + R0 = 0x36; + SYSCFG = R0; /*Enable Cycle Counter and Nesting Of Interrupts(3rd Bit)*/ + R0 = 0; + + /*Clear Out All the data and pointer Registers*/ + R1 = R0; + R2 = R0; + R3 = R0; + R4 = R0; + R5 = R0; + R6 = R0; + R7 = R0; + + P0 = R0; + P1 = R0; + P2 = R0; + P3 = R0; + P4 = R0; + P5 = R0; + + LC0 = r0; + LC1 = r0; + L0 = r0; + L1 = r0; + L2 = r0; + L3 = r0; + + /* Clear Out All the DAG Registers*/ + B0 = r0; + B1 = r0; + B2 = r0; + B3 = r0; + + I0 = r0; + I1 = r0; + I2 = r0; + I3 = r0; + + M0 = r0; + M1 = r0; + M2 = r0; + M3 = r0; + + /* Turn off the icache */ + p0.l = LO(IMEM_CONTROL); + p0.h = HI(IMEM_CONTROL); + R1 = [p0]; + R0 = ~ENICPLB; + R0 = R0 & R1; + + /* Anomaly 05000125 */ +#ifdef ANOMALY_05000125 + CLI R2; + SSYNC; +#endif + [p0] = R0; + SSYNC; +#ifdef ANOMALY_05000125 + STI R2; +#endif + + /* Turn off the dcache */ + p0.l = LO(DMEM_CONTROL); + p0.h = HI(DMEM_CONTROL); + R1 = [p0]; + R0 = ~ENDCPLB; + R0 = R0 & R1; + + /* Anomaly 05000125 */ +#ifdef ANOMALY_05000125 + CLI R2; + SSYNC; +#endif + [p0] = R0; + SSYNC; +#ifdef ANOMALY_05000125 + STI R2; +#endif + + /* in case of double faults, save a few things */ + p0.l = _init_retx_coreb; + p0.h = _init_retx_coreb; + R0 = RETX; + [P0] = R0; + +#ifdef CONFIG_DEBUG_DOUBLEFAULT + /* Only save these if we are storing them, + * This happens here, since L1 gets clobbered + * below + */ + GET_PDA(p0, r0); + r7 = [p0 + PDA_RETX]; + p1.l = _init_saved_retx_coreb; + p1.h = _init_saved_retx_coreb; + [p1] = r7; + + r7 = [p0 + PDA_DCPLB]; + p1.l = _init_saved_dcplb_fault_addr_coreb; + p1.h = _init_saved_dcplb_fault_addr_coreb; + [p1] = r7; + + r7 = [p0 + PDA_ICPLB]; + p1.l = _init_saved_icplb_fault_addr_coreb; + p1.h = _init_saved_icplb_fault_addr_coreb; + [p1] = r7; + + r7 = [p0 + PDA_SEQSTAT]; + p1.l = _init_saved_seqstat_coreb; + p1.h = _init_saved_seqstat_coreb; + [p1] = r7; +#endif + + /* Initialize stack pointer */ + sp.l = lo(INITIAL_STACK); + sp.h = hi(INITIAL_STACK); + fp = sp; + usp = sp; + + /* This section keeps the processor in supervisor mode + * during core B startup. Branches to the idle task. + */ + + /* EVT15 = _real_start */ + + p0.l = lo(EVT15); + p0.h = hi(EVT15); + p1.l = _coreb_start; + p1.h = _coreb_start; + [p0] = p1; + csync; + + p0.l = lo(IMASK); + p0.h = hi(IMASK); + p1.l = IMASK_IVG15; + p1.h = 0x0; + [p0] = p1; + csync; + + raise 15; + p0.l = .LWAIT_HERE; + p0.h = .LWAIT_HERE; + reti = p0; +#if defined(ANOMALY_05000281) + nop; nop; nop; +#endif + rti; + +.LWAIT_HERE: + jump .LWAIT_HERE; +ENDPROC(_coreb_trampoline_start) +ENTRY(_coreb_trampoline_end) + +ENTRY(_coreb_start) + [--sp] = reti; + + p0.l = lo(WDOGB_CTL); + p0.h = hi(WDOGB_CTL); + r0 = 0xAD6(z); + w[p0] = r0; /* Clear the watchdog. */ + ssync; + + /* + * switch to IDLE stack. + */ + p0.l = _secondary_stack; + p0.h = _secondary_stack; + sp = [p0]; + usp = sp; + fp = sp; + sp += -12; + call _init_pda + sp += 12; + call _secondary_start_kernel; +.L_exit: + jump.s .L_exit; +ENDPROC(_coreb_start) + +__FINIT diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c new file mode 100644 index 000000000000..9b27e698c0b2 --- /dev/null +++ b/arch/blackfin/mach-bf561/smp.c @@ -0,0 +1,167 @@ +/* + * File: arch/blackfin/mach-bf561/smp.c + * Author: Philippe Gerum <rpm@xenomai.org> + * + * Copyright 2007 Analog Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/delay.h> +#include <asm/smp.h> +#include <asm/dma.h> + +static DEFINE_SPINLOCK(boot_lock); + +static cpumask_t cpu_callin_map; + +/* + * platform_init_cpus() - Tell the world about how many cores we + * have. This is called while setting up the architecture support + * (setup_arch()), so don't be too demanding here with respect to + * available kernel services. + */ + +void __init platform_init_cpus(void) +{ + cpu_set(0, cpu_possible_map); /* CoreA */ + cpu_set(1, cpu_possible_map); /* CoreB */ +} + +void __init platform_prepare_cpus(unsigned int max_cpus) +{ + int len; + + len = &coreb_trampoline_end - &coreb_trampoline_start + 1; + BUG_ON(len > L1_CODE_LENGTH); + + dma_memcpy((void *)COREB_L1_CODE_START, &coreb_trampoline_start, len); + + /* Both cores ought to be present on a bf561! */ + cpu_set(0, cpu_present_map); /* CoreA */ + cpu_set(1, cpu_present_map); /* CoreB */ + + printk(KERN_INFO "CoreB bootstrap code to SRAM %p via DMA.\n", (void *)COREB_L1_CODE_START); +} + +int __init setup_profiling_timer(unsigned int multiplier) /* not supported */ +{ + return -EINVAL; +} + +void __cpuinit platform_secondary_init(unsigned int cpu) +{ + local_irq_disable(); + + /* Clone setup for peripheral interrupt sources from CoreA. */ + bfin_write_SICB_IMASK0(bfin_read_SICA_IMASK0()); + bfin_write_SICB_IMASK1(bfin_read_SICA_IMASK1()); + SSYNC(); + + /* Clone setup for IARs from CoreA. */ + bfin_write_SICB_IAR0(bfin_read_SICA_IAR0()); + bfin_write_SICB_IAR1(bfin_read_SICA_IAR1()); + bfin_write_SICB_IAR2(bfin_read_SICA_IAR2()); + bfin_write_SICB_IAR3(bfin_read_SICA_IAR3()); + bfin_write_SICB_IAR4(bfin_read_SICA_IAR4()); + bfin_write_SICB_IAR5(bfin_read_SICA_IAR5()); + bfin_write_SICB_IAR6(bfin_read_SICA_IAR6()); + bfin_write_SICB_IAR7(bfin_read_SICA_IAR7()); + SSYNC(); + + local_irq_enable(); + + /* Calibrate loops per jiffy value. */ + calibrate_delay(); + + /* Store CPU-private information to the cpu_data array. */ + bfin_setup_cpudata(cpu); + + /* We are done with local CPU inits, unblock the boot CPU. */ + cpu_set(cpu, cpu_callin_map); + spin_lock(&boot_lock); + spin_unlock(&boot_lock); +} + +int __cpuinit platform_boot_secondary(unsigned int cpu, struct task_struct *idle) +{ + unsigned long timeout; + + /* CoreB already running?! */ + BUG_ON((bfin_read_SICA_SYSCR() & COREB_SRAM_INIT) == 0); + + printk(KERN_INFO "Booting Core B.\n"); + + spin_lock(&boot_lock); + + /* Kick CoreB, which should start execution from CORE_SRAM_BASE. */ + SSYNC(); + bfin_write_SICA_SYSCR(bfin_read_SICA_SYSCR() & ~COREB_SRAM_INIT); + SSYNC(); + + timeout = jiffies + 1 * HZ; + while (time_before(jiffies, timeout)) { + if (cpu_isset(cpu, cpu_callin_map)) + break; + udelay(100); + barrier(); + } + + spin_unlock(&boot_lock); + + return cpu_isset(cpu, cpu_callin_map) ? 0 : -ENOSYS; +} + +void __init platform_request_ipi(irq_handler_t handler) +{ + int ret; + + ret = request_irq(IRQ_SUPPLE_0, handler, IRQF_DISABLED, + "SMP interrupt", handler); + if (ret) + panic("Cannot request supplemental interrupt 0 for IPI service\n"); +} + +void platform_send_ipi(cpumask_t callmap) +{ + unsigned int cpu; + + for_each_cpu_mask(cpu, callmap) { + BUG_ON(cpu >= 2); + SSYNC(); + bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (6 + cpu))); + SSYNC(); + } +} + +void platform_send_ipi_cpu(unsigned int cpu) +{ + BUG_ON(cpu >= 2); + SSYNC(); + bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (6 + cpu))); + SSYNC(); +} + +void platform_clear_ipi(unsigned int cpu) +{ + BUG_ON(cpu >= 2); + SSYNC(); + bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (10 + cpu))); + SSYNC(); +} |