summaryrefslogtreecommitdiff
path: root/cpu
diff options
context:
space:
mode:
Diffstat (limited to 'cpu')
-rw-r--r--cpu/bf533/Makefile22
-rw-r--r--cpu/bf533/bf533_serial.h5
-rw-r--r--cpu/bf533/cache.S75
-rw-r--r--cpu/bf533/config.mk2
-rw-r--r--cpu/bf533/cplbhdlr.S193
-rw-r--r--cpu/bf533/cplbmgr.S601
-rw-r--r--cpu/bf533/cpu.c218
-rw-r--r--cpu/bf533/cpu.h15
-rw-r--r--cpu/bf533/flush.S57
-rw-r--r--cpu/bf533/init_sdram.S180
-rw-r--r--cpu/bf533/init_sdram_bootrom_initblock.S181
-rw-r--r--cpu/bf533/interrupt.S255
-rw-r--r--cpu/bf533/interrupts.c50
-rw-r--r--cpu/bf533/ints.c80
-rw-r--r--cpu/bf533/serial.c50
-rw-r--r--cpu/bf533/start.S259
-rw-r--r--cpu/bf533/start1.S4
-rw-r--r--cpu/bf533/traps.c205
-rw-r--r--cpu/bf533/video.c194
-rw-r--r--cpu/bf533/video.h25
20 files changed, 1217 insertions, 1454 deletions
diff --git a/cpu/bf533/Makefile b/cpu/bf533/Makefile
index 9f4a0d8..6fd5e33 100644
--- a/cpu/bf533/Makefile
+++ b/cpu/bf533/Makefile
@@ -2,7 +2,7 @@
#
# Copyright (c) 2005 blackfin.uclinux.org
#
-# (C) Copyright 2000-2006
+# (C) Copyright 2000-2004
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
@@ -26,25 +26,23 @@
include $(TOPDIR)/config.mk
-LIB = $(obj)lib$(CPU).a
+LIB = lib$(CPU).a
-START = start.o start1.o interrupt.o cache.o cplbhdlr.o cplbmgr.o flush.o
-COBJS = cpu.o traps.o ints.o serial.o interrupts.o
+START = start.o start1.o interrupt.o cache.o flush.o init_sdram.o
+OBJS = cpu.o traps.o ints.o serial.o interrupts.o video.o
-SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
-START := $(addprefix $(obj),$(START))
+EXTRA = init_sdram_bootrom_initblock.o
-all: $(obj).depend $(START) $(LIB)
+all: .depend $(START) $(LIB) .depend $(EXTRA)
$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
+ $(AR) cr $@ $(OBJS)
#########################################################################
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
+.depend: Makefile $(START:.o=.S) $(OBJS:.o=.c)
+ $(CC) -M $(CFLAGS) $(START:.o=.S) $(OBJS:.o=.c) > $@
-sinclude $(obj).depend
+sinclude .depend
#########################################################################
diff --git a/cpu/bf533/bf533_serial.h b/cpu/bf533/bf533_serial.h
index d430e6c..82fcd57 100644
--- a/cpu/bf533/bf533_serial.h
+++ b/cpu/bf533/bf533_serial.h
@@ -3,7 +3,7 @@
*
* Copyright (c) 2005 blackfin.uclinux.org
*
- * This file is based on
+ * This file is based on
* bf533_serial.h: Definitions for the BlackFin BF533 DSP serial driver.
* Copyright (C) 2003 Bas Vermeulen <bas@buyways.nl>
* BuyWays B.V. (www.buyways.nl)
@@ -63,8 +63,7 @@ int serial_getc(void);
void serial_puts(const char *s);
static void local_put_char(char ch);
-extern int get_clock(void);
-int baud_table[5] = {9600, 19200, 38400, 57600, 115200};
+int baud_table[5] = { 9600, 19200, 38400, 57600, 115200 };
struct {
unsigned char dl_high;
diff --git a/cpu/bf533/cache.S b/cpu/bf533/cache.S
index 8fac402..d2b34a9 100644
--- a/cpu/bf533/cache.S
+++ b/cpu/bf533/cache.S
@@ -1,18 +1,17 @@
-
-
#define ASSEMBLY
#include <asm/linkage.h>
-#include <asm/cpu/def_LPBlackfin.h>
+#include <config.h>
+#include <asm/blackfin.h>
.text
.align 2
-ENTRY(blackfin_icache_flush_range)
+ENTRY(_blackfin_icache_flush_range)
R2 = -32;
R2 = R0 & R2;
P0 = R2;
P1 = R1;
CSYNC;
-1:
+ 1:
IFLUSH[P0++];
CC = P0 < P1(iu);
IF CC JUMP 1b(bp);
@@ -20,7 +19,7 @@ ENTRY(blackfin_icache_flush_range)
SSYNC;
RTS;
-ENTRY(blackfin_dcache_flush_range)
+ENTRY(_blackfin_dcache_flush_range)
R2 = -32;
R2 = R0 & R2;
P0 = R2;
@@ -35,19 +34,21 @@ ENTRY(blackfin_dcache_flush_range)
RTS;
ENTRY(_icache_invalidate)
-ENTRY(invalidate_entire_icache)
- [--SP] = ( R7:5);
+ENTRY(_invalidate_entire_icache)
+ [--SP] = (R7:5);
P0.L = (IMEM_CONTROL & 0xFFFF);
P0.H = (IMEM_CONTROL >> 16);
- R7 = [P0];
+ R7 =[P0];
- /* Clear the IMC bit , All valid bits in the instruction
- * cache are set to the invalid state
- */
- BITCLR(R7,IMC_P);
+/*
+ * Clear the IMC bit , All valid bits in the instruction
+ * cache are set to the invalid state
+ */
+ BITCLR(R7, IMC_P);
CLI R6;
- SSYNC; /* SSYNC required before invalidating cache. */
+ /* SSYNC required before invalidating cache. */
+ SSYNC;
.align 8;
[P0] = R7;
SSYNC;
@@ -58,54 +59,55 @@ ENTRY(invalidate_entire_icache)
R7 = R7 | R6;
CLI R6;
- SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */
+ SSYNC;
.align 8;
[P0] = R7;
SSYNC;
STI R6;
- ( R7:5) = [SP++];
+ (R7:5) =[SP++];
RTS;
-/* Invalidate the Entire Data cache by
+/*
+ * Invalidate the Entire Data cache by
* clearing DMC[1:0] bits
*/
-ENTRY(invalidate_entire_dcache)
+ENTRY(_invalidate_entire_dcache)
ENTRY(_dcache_invalidate)
- [--SP] = ( R7:6);
+ [--SP] = (R7:6);
P0.L = (DMEM_CONTROL & 0xFFFF);
P0.H = (DMEM_CONTROL >> 16);
- R7 = [P0];
+ R7 =[P0];
- /* Clear the DMC[1:0] bits, All valid bits in the data
- * cache are set to the invalid state
- */
- BITCLR(R7,DMC0_P);
- BITCLR(R7,DMC1_P);
+/*
+ * Clear the DMC[1:0] bits, All valid bits in the data
+ * cache are set to the invalid state
+ */
+ BITCLR(R7, DMC0_P);
+ BITCLR(R7, DMC1_P);
CLI R6;
- SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */
+ SSYNC;
.align 8;
[P0] = R7;
SSYNC;
STI R6;
-
/* Configures the data cache again */
R6 = (ACACHE_BCACHE | ENDCPLB | PORT_PREF0);
R7 = R7 | R6;
CLI R6;
- SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */
+ SSYNC;
.align 8;
[P0] = R7;
SSYNC;
STI R6;
- ( R7:6) = [SP++];
+ (R7:6) =[SP++];
RTS;
-ENTRY(blackfin_dcache_invalidate_range)
+ENTRY(_blackfin_dcache_invalidate_range)
R2 = -32;
R2 = R0 & R2;
P0 = R2;
@@ -113,13 +115,14 @@ ENTRY(blackfin_dcache_invalidate_range)
CSYNC;
1:
FLUSHINV[P0++];
- CC = P0 < P1 (iu);
- IF CC JUMP 1b (bp);
+ CC = P0 < P1(iu);
+ IF CC JUMP 1b(bp);
- /* If the data crosses a cache line, then we'll be pointing to
- ** the last cache line, but won't have flushed/invalidated it yet, so do
- ** one more.
- */
+/*
+ * If the data crosses a cache line, then we'll be pointing to
+ * the last cache line, but won't have flushed/invalidated it yet, so do
+ * one more.
+ */
FLUSHINV[P0];
SSYNC;
RTS;
diff --git a/cpu/bf533/config.mk b/cpu/bf533/config.mk
index a9d529e..10817d9 100644
--- a/cpu/bf533/config.mk
+++ b/cpu/bf533/config.mk
@@ -24,4 +24,4 @@
# MA 02111-1307 USA
#
-PLATFORM_RELFLAGS += -ffixed-P5
+PLATFORM_RELFLAGS += -mcpu=bf533 -ffixed-P5
diff --git a/cpu/bf533/cplbhdlr.S b/cpu/bf533/cplbhdlr.S
deleted file mode 100644
index 61be5bb..0000000
--- a/cpu/bf533/cplbhdlr.S
+++ /dev/null
@@ -1,193 +0,0 @@
-/* Copyright (C) 2003 Analog Devices, Inc. All Rights Reserved.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.
- *
- * Blackfin BF533/2.6 support : LG Soft India
- */
-
-
-/* Include an exception handler to invoke the CPLB manager
- */
-
-#include <asm-blackfin/linkage.h>
-#include <asm/cplb.h>
-#include <asm/entry.h>
-
-
-.text
-
-.globl _cplb_hdr;
-.type _cplb_hdr, STT_FUNC;
-.extern _cplb_mgr;
-.type _cplb_mgr, STT_FUNC;
-.extern __unknown_exception_occurred;
-.type __unknown_exception_occurred, STT_FUNC;
-.extern __cplb_miss_all_locked;
-.type __cplb_miss_all_locked, STT_FUNC;
-.extern __cplb_miss_without_replacement;
-.type __cplb_miss_without_replacement, STT_FUNC;
-.extern __cplb_protection_violation;
-.type __cplb_protection_violation, STT_FUNC;
-.extern panic_pv;
-
-.align 2;
-
-ENTRY(_cplb_hdr)
- SSYNC;
- [--SP] = ( R7:0, P5:0 );
- [--SP] = ASTAT;
- [--SP] = SEQSTAT;
- [--SP] = I0;
- [--SP] = I1;
- [--SP] = I2;
- [--SP] = I3;
- [--SP] = LT0;
- [--SP] = LB0;
- [--SP] = LC0;
- [--SP] = LT1;
- [--SP] = LB1;
- [--SP] = LC1;
- R2 = SEQSTAT;
-
- /*Mask the contents of SEQSTAT and leave only EXCAUSE in R2*/
- R2 <<= 26;
- R2 >>= 26;
-
- R1 = 0x23; /* Data access CPLB protection violation */
- CC = R2 == R1;
- IF !CC JUMP not_data_write;
- R0 = 2; /* is a write to data space*/
- JUMP is_icplb_miss;
-
-not_data_write:
- R1 = 0x2C; /* CPLB miss on an instruction fetch */
- CC = R2 == R1;
- R0 = 0; /* is_data_miss == False*/
- IF CC JUMP is_icplb_miss;
-
- R1 = 0x26;
- CC = R2 == R1;
- IF !CC JUMP unknown;
-
- R0 = 1; /* is_data_miss == True*/
-
-is_icplb_miss:
-
-#if ( defined (CONFIG_BLKFIN_CACHE) || defined (CONFIG_BLKFIN_DCACHE))
-#if ( defined (CONFIG_BLKFIN_CACHE) && !defined (CONFIG_BLKFIN_DCACHE))
- R1 = CPLB_ENABLE_ICACHE;
-#endif
-#if ( !defined (CONFIG_BLKFIN_CACHE) && defined (CONFIG_BLKFIN_DCACHE))
- R1 = CPLB_ENABLE_DCACHE;
-#endif
-#if ( defined (CONFIG_BLKFIN_CACHE) && defined (CONFIG_BLKFIN_DCACHE))
- R1 = CPLB_ENABLE_DCACHE | CPLB_ENABLE_ICACHE;
-#endif
-#else
- R1 = 0;
-#endif
-
- [--SP] = RETS;
- CALL _cplb_mgr;
- RETS = [SP++];
- CC = R0 == 0;
- IF !CC JUMP not_replaced;
- LC1 = [SP++];
- LB1 = [SP++];
- LT1 = [SP++];
- LC0 = [SP++];
- LB0 = [SP++];
- LT0 = [SP++];
- I3 = [SP++];
- I2 = [SP++];
- I1 = [SP++];
- I0 = [SP++];
- SEQSTAT = [SP++];
- ASTAT = [SP++];
- ( R7:0, P5:0 ) = [SP++];
- RTS;
-
-unknown:
- [--SP] = RETS;
- CALL __unknown_exception_occurred;
- RETS = [SP++];
- JUMP unknown;
-not_replaced:
- CC = R0 == CPLB_NO_UNLOCKED;
- IF !CC JUMP next_check;
- [--SP] = RETS;
- CALL __cplb_miss_all_locked;
- RETS = [SP++];
-next_check:
- CC = R0 == CPLB_NO_ADDR_MATCH;
- IF !CC JUMP next_check2;
- [--SP] = RETS;
- CALL __cplb_miss_without_replacement;
- RETS = [SP++];
- JUMP not_replaced;
-next_check2:
- CC = R0 == CPLB_PROT_VIOL;
- IF !CC JUMP strange_return_from_cplb_mgr;
- [--SP] = RETS;
- CALL __cplb_protection_violation;
- RETS = [SP++];
- JUMP not_replaced;
-strange_return_from_cplb_mgr:
- IDLE;
- CSYNC;
- JUMP strange_return_from_cplb_mgr;
-
-/************************************
- * Diagnostic exception handlers
- */
-
-__cplb_miss_all_locked:
- sp += -12;
- R0 = CPLB_NO_UNLOCKED;
- call panic_bfin;
- SP += 12;
- RTS;
-
- __cplb_miss_without_replacement:
- sp += -12;
- R0 = CPLB_NO_ADDR_MATCH;
- call panic_bfin;
- SP += 12;
- RTS;
-
-__cplb_protection_violation:
- sp += -12;
- R0 = CPLB_PROT_VIOL;
- call panic_bfin;
- SP += 12;
- RTS;
-
-__unknown_exception_occurred:
-
- /* This function is invoked by the default exception
- * handler, if it does not recognise the kind of
- * exception that has occurred. In other words, the
- * default handler only handles some of the system's
- * exception types, and it does not expect any others
- * to occur. If your application is going to be using
- * other kinds of exceptions, you must replace the
- * default handler with your own, that handles all the
- * exceptions you will use.
- *
- * Since there's nothing we can do, we just loop here
- * at what we hope is a suitably informative label.
- */
-
- IDLE;
-do_not_know_what_to_do:
- CSYNC;
- JUMP __unknown_exception_occurred;
-
- RTS;
-.__unknown_exception_occurred.end:
-.global __unknown_exception_occurred;
-.type __unknown_exception_occurred, STT_FUNC;
-
-panic_bfin:
- RTS;
diff --git a/cpu/bf533/cplbmgr.S b/cpu/bf533/cplbmgr.S
deleted file mode 100644
index 7a0b048..0000000
--- a/cpu/bf533/cplbmgr.S
+++ /dev/null
@@ -1,601 +0,0 @@
-/*This file is subject to the terms and conditions of the GNU General Public
- * License.
- *
- * Blackfin BF533/2.6 support : LG Soft India
- * Modification: Dec 07 2004
- * 1. Correction in icheck_lock. Valid lock entries were
- * geting victimized, for instruction cplb replacement.
- * 2. Setup loop's are modified as now toolchain support's P Indexed
- * addressing
- * :LG Soft India
- *
- */
-
-/* Usage: int _cplb_mgr(is_data_miss,int enable_cache)
- * is_data_miss==2 => Mark as Dirty, write to the clean data page
- * is_data_miss==1 => Replace a data CPLB.
- * is_data_miss==0 => Replace an instruction CPLB.
- *
- * Returns:
- * CPLB_RELOADED => Successfully updated CPLB table.
- * CPLB_NO_UNLOCKED => All CPLBs are locked, so cannot be evicted.This indicates
- * that the CPLBs in the configuration tablei are badly
- * configured, as this should never occur.
- * CPLB_NO_ADDR_MATCH => The address being accessed, that triggered the exception,
- * is not covered by any of the CPLBs in the configuration
- * table. The application isi presumably misbehaving.
- * CPLB_PROT_VIOL => The address being accessed, that triggered thei exception,
- * was not a first-write to a clean Write Back Data page,
- * and so presumably is a genuine violation of the page's
- * protection attributes. The application is misbehaving.
- */
-#define ASSEMBLY
-
-#include <asm-blackfin/linkage.h>
-#include <asm-blackfin/blackfin.h>
-#include <asm-blackfin/cplbtab.h>
-#include <asm-blackfin/cplb.h>
-
-.text
-
-.align 2;
-ENTRY(_cplb_mgr)
-
- [--SP]=( R7:0,P5:0 );
-
- CC = R0 == 2;
- IF CC JUMP dcplb_write;
-
- CC = R0 == 0;
- IF !CC JUMP dcplb_miss_compare;
-
- /* ICPLB Miss Exception. We need to choose one of the
- * currently-installed CPLBs, and replace it with one
- * from the configuration table.
- */
-
- P4.L = (ICPLB_FAULT_ADDR & 0xFFFF);
- P4.H = (ICPLB_FAULT_ADDR >> 16);
-
- P1 = 16;
- P5.L = page_size_table;
- P5.H = page_size_table;
-
- P0.L = (ICPLB_DATA0 & 0xFFFF);
- P0.H = (ICPLB_DATA0 >> 16);
- R4 = [P4]; /* Get faulting address*/
- R6 = 64; /* Advance past the fault address, which*/
- R6 = R6 + R4; /* we'll use if we find a match*/
- R3 = ((16 << 8) | 2); /* Extract mask, bits 16 and 17.*/
-
- R5 = 0;
-isearch:
-
- R1 = [P0-0x100]; /* Address for this CPLB */
-
- R0 = [P0++]; /* Info for this CPLB*/
- CC = BITTST(R0,0); /* Is the CPLB valid?*/
- IF !CC JUMP nomatch; /* Skip it, if not.*/
- CC = R4 < R1(IU); /* If fault address less than page start*/
- IF CC JUMP nomatch; /* then skip this one.*/
- R2 = EXTRACT(R0,R3.L) (Z); /* Get page size*/
- P1 = R2;
- P1 = P5 + (P1<<2); /* index into page-size table*/
- R2 = [P1]; /* Get the page size*/
- R1 = R1 + R2; /* and add to page start, to get page end*/
- CC = R4 < R1(IU); /* and see whether fault addr is in page.*/
- IF !CC R4 = R6; /* If so, advance the address and finish loop.*/
- IF !CC JUMP isearch_done;
-nomatch:
- /* Go around again*/
- R5 += 1;
- CC = BITTST(R5, 4); /* i.e CC = R5 >= 16*/
- IF !CC JUMP isearch;
-
-isearch_done:
- I0 = R4; /* Fault address we'll search for*/
-
- /* set up pointers */
- P0.L = (ICPLB_DATA0 & 0xFFFF);
- P0.H = (ICPLB_DATA0 >> 16);
-
- /* The replacement procedure for ICPLBs */
-
- P4.L = (IMEM_CONTROL & 0xFFFF);
- P4.H = (IMEM_CONTROL >> 16);
-
- /* disable cplbs */
- R5 = [P4]; /* Control Register*/
- BITCLR(R5,ENICPLB_P);
- CLI R1;
- SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */
- .align 8;
- [P4] = R5;
- SSYNC;
- STI R1;
-
- R1 = -1; /* end point comparison */
- R3 = 16; /* counter */
-
- /* Search through CPLBs for first non-locked entry */
- /* Overwrite it by moving everyone else up by 1 */
-icheck_lock:
- R0 = [P0++];
- R3 = R3 + R1;
- CC = R3 == R1;
- IF CC JUMP all_locked;
- CC = BITTST(R0, 0); /* an invalid entry is good */
- IF !CC JUMP ifound_victim;
- CC = BITTST(R0,1); /* but a locked entry isn't */
- IF CC JUMP icheck_lock;
-
-ifound_victim:
-#ifdef CONFIG_CPLB_INFO
- R7 = [P0 - 0x104];
- P2.L = ipdt_table;
- P2.H = ipdt_table;
- P3.L = ipdt_swapcount_table;
- P3.H = ipdt_swapcount_table;
- P3 += -4;
-icount:
- R2 = [P2]; /* address from config table */
- P2 += 8;
- P3 += 8;
- CC = R2==-1;
- IF CC JUMP icount_done;
- CC = R7==R2;
- IF !CC JUMP icount;
- R7 = [P3];
- R7 += 1;
- [P3] = R7;
- CSYNC;
-icount_done:
-#endif
- LC0=R3;
- LSETUP(is_move,ie_move) LC0;
-is_move:
- R0 = [P0];
- [P0 - 4] = R0;
- R0 = [P0 - 0x100];
- [P0-0x104] = R0;
-ie_move:P0+=4;
-
- /* We've made space in the ICPLB table, so that ICPLB15
- * is now free to be overwritten. Next, we have to determine
- * which CPLB we need to install, from the configuration
- * table. This is a matter of getting the start-of-page
- * addresses and page-lengths from the config table, and
- * determining whether the fault address falls within that
- * range.
- */
-
- P2.L = ipdt_table;
- P2.H = ipdt_table;
-#ifdef CONFIG_CPLB_INFO
- P3.L = ipdt_swapcount_table;
- P3.H = ipdt_swapcount_table;
- P3 += -8;
-#endif
- P0.L = page_size_table;
- P0.H = page_size_table;
-
- /* Retrieve our fault address (which may have been advanced
- * because the faulting instruction crossed a page boundary).
- */
-
- R0 = I0;
-
- /* An extraction pattern, to get the page-size bits from
- * the CPLB data entry. Bits 16-17, so two bits at posn 16.
- */
-
- R1 = ((16<<8)|2);
-inext: R4 = [P2++]; /* address from config table */
- R2 = [P2++]; /* data from config table */
-#ifdef CONFIG_CPLB_INFO
- P3 += 8;
-#endif
-
- CC = R4 == -1; /* End of config table*/
- IF CC JUMP no_page_in_table;
-
- /* See if failed address > start address */
- CC = R4 <= R0(IU);
- IF !CC JUMP inext;
-
- /* extract page size (17:16)*/
- R3 = EXTRACT(R2, R1.L) (Z);
-
- /* add page size to addr to get range */
-
- P5 = R3;
- P5 = P0 + (P5 << 2); /* scaled, for int access*/
- R3 = [P5];
- R3 = R3 + R4;
-
- /* See if failed address < (start address + page size) */
- CC = R0 < R3(IU);
- IF !CC JUMP inext;
-
- /* We've found a CPLB in the config table that covers
- * the faulting address, so install this CPLB into the
- * last entry of the table.
- */
-
- P1.L = (ICPLB_DATA15 & 0xFFFF); /*ICPLB_DATA15*/
- P1.H = (ICPLB_DATA15 >> 16);
- [P1] = R2;
- [P1-0x100] = R4;
-#ifdef CONFIG_CPLB_INFO
- R3 = [P3];
- R3 += 1;
- [P3] = R3;
-#endif
-
- /* P4 points to IMEM_CONTROL, and R5 contains its old
- * value, after we disabled ICPLBS. Re-enable them.
- */
-
- BITSET(R5,ENICPLB_P);
- CLI R2;
- SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */
- .align 8;
- [P4] = R5;
- SSYNC;
- STI R2;
-
- ( R7:0,P5:0 ) = [SP++];
- R0 = CPLB_RELOADED;
- RTS;
-
-/* FAILED CASES*/
-no_page_in_table:
- ( R7:0,P5:0 ) = [SP++];
- R0 = CPLB_NO_ADDR_MATCH;
- RTS;
-all_locked:
- ( R7:0,P5:0 ) = [SP++];
- R0 = CPLB_NO_UNLOCKED;
- RTS;
-prot_violation:
- ( R7:0,P5:0 ) = [SP++];
- R0 = CPLB_PROT_VIOL;
- RTS;
-
-dcplb_write:
-
- /* if a DCPLB is marked as write-back (CPLB_WT==0), and
- * it is clean (CPLB_DIRTY==0), then a write to the
- * CPLB's page triggers a protection violation. We have to
- * mark the CPLB as dirty, to indicate that there are
- * pending writes associated with the CPLB.
- */
-
- P4.L = (DCPLB_STATUS & 0xFFFF);
- P4.H = (DCPLB_STATUS >> 16);
- P3.L = (DCPLB_DATA0 & 0xFFFF);
- P3.H = (DCPLB_DATA0 >> 16);
- R5 = [P4];
-
- /* A protection violation can be caused by more than just writes
- * to a clean WB page, so we have to ensure that:
- * - It's a write
- * - to a clean WB page
- * - and is allowed in the mode the access occurred.
- */
-
- CC = BITTST(R5, 16); /* ensure it was a write*/
- IF !CC JUMP prot_violation;
-
- /* to check the rest, we have to retrieve the DCPLB.*/
-
- /* The low half of DCPLB_STATUS is a bit mask*/
-
- R2 = R5.L (Z); /* indicating which CPLB triggered the event.*/
- R3 = 30; /* so we can use this to determine the offset*/
- R2.L = SIGNBITS R2;
- R2 = R2.L (Z); /* into the DCPLB table.*/
- R3 = R3 - R2;
- P4 = R3;
- P3 = P3 + (P4<<2);
- R3 = [P3]; /* Retrieve the CPLB*/
-
- /* Now we can check whether it's a clean WB page*/
-
- CC = BITTST(R3, 14); /* 0==WB, 1==WT*/
- IF CC JUMP prot_violation;
- CC = BITTST(R3, 7); /* 0 == clean, 1 == dirty*/
- IF CC JUMP prot_violation;
-
- /* Check whether the write is allowed in the mode that was active.*/
-
- R2 = 1<<3; /* checking write in user mode*/
- CC = BITTST(R5, 17); /* 0==was user, 1==was super*/
- R5 = CC;
- R2 <<= R5; /* if was super, check write in super mode*/
- R2 = R3 & R2;
- CC = R2 == 0;
- IF CC JUMP prot_violation;
-
- /* It's a genuine write-to-clean-page.*/
-
- BITSET(R3, 7); /* mark as dirty*/
- [P3] = R3; /* and write back.*/
- CSYNC;
- ( R7:0,P5:0 ) = [SP++];
- R0 = CPLB_RELOADED;
- RTS;
-
-dcplb_miss_compare:
-
- /* Data CPLB Miss event. We need to choose a CPLB to
- * evict, and then locate a new CPLB to install from the
- * config table, that covers the faulting address.
- */
-
- P1.L = (DCPLB_DATA15 & 0xFFFF);
- P1.H = (DCPLB_DATA15 >> 16);
-
- P4.L = (DCPLB_FAULT_ADDR & 0xFFFF);
- P4.H = (DCPLB_FAULT_ADDR >> 16);
- R4 = [P4];
- I0 = R4;
-
- /* The replacement procedure for DCPLBs*/
-
- R6 = R1; /* Save for later*/
-
- /* Turn off CPLBs while we work.*/
- P4.L = (DMEM_CONTROL & 0xFFFF);
- P4.H = (DMEM_CONTROL >> 16);
- R5 = [P4];
- BITCLR(R5,ENDCPLB_P);
- CLI R0;
- SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */
- .align 8;
- [P4] = R5;
- SSYNC;
- STI R0;
-
- /* Start looking for a CPLB to evict. Our order of preference
- * is: invalid CPLBs, clean CPLBs, dirty CPLBs. Locked CPLBs
- * are no good.
- */
-
- I1.L = (DCPLB_DATA0 & 0xFFFF);
- I1.H = (DCPLB_DATA0 >> 16);
- P1 = 3;
- P2 = 16;
- I2.L = dcplb_preference;
- I2.H = dcplb_preference;
- LSETUP(sdsearch1, edsearch1) LC0 = P1;
-sdsearch1:
- R0 = [I2++]; /* Get the bits we're interested in*/
- P0 = I1; /* Go back to start of table*/
- LSETUP (sdsearch2, edsearch2) LC1 = P2;
-sdsearch2:
- R1 = [P0++]; /* Fetch each installed CPLB in turn*/
- R2 = R1 & R0; /* and test for interesting bits.*/
- CC = R2 == 0; /* If none are set, it'll do.*/
- IF !CC JUMP skip_stack_check;
-
- R2 = [P0 - 0x104]; /* R2 - PageStart */
- P3.L = page_size_table; /* retrive end address */
- P3.H = page_size_table; /* retrive end address */
- R3 = 0x2; /* 0th - position, 2 bits -length */
- nop; /*Anamoly 05000209*/
- R7 = EXTRACT(R1,R3.l);
- R7 = R7 << 2; /* Page size index offset */
- P5 = R7;
- P3 = P3 + P5;
- R7 = [P3]; /* page size in 1K bytes */
-
- R7 = R7 << 0xA; /* in bytes * 1024*/
- R7 = R2 + R7; /* R7 - PageEnd */
- R4 = SP; /* Test SP is in range */
-
- CC = R7 < R4; /* if PageEnd < SP */
- IF CC JUMP dfound_victim;
- R3 = 0x284; /* stack length from start of trap till the point */
- /* 20 stack locations for future modifications */
- R4 = R4 + R3;
- CC = R4 < R2; /* if SP + stacklen < PageStart */
- IF CC JUMP dfound_victim;
-skip_stack_check:
-
-edsearch2: NOP;
-edsearch1: NOP;
-
- /* If we got here, we didn't find a DCPLB we considered
- * replacable, which means all of them were locked.
- */
-
- JUMP all_locked;
-dfound_victim:
-
-#ifdef CONFIG_CPLB_INFO
- R1 = [P0 - 0x104];
- P2.L = dpdt_table;
- P2.H = dpdt_table;
- P3.L = dpdt_swapcount_table;
- P3.H = dpdt_swapcount_table;
- P3 += -4;
-dicount:
- R2 = [P2];
- P2 += 8;
- P3 += 8;
- CC = R2==-1;
- IF CC JUMP dicount_done;
- CC = R1==R2;
- IF !CC JUMP dicount;
- R1 = [P3];
- R1 += 1;
- [P3] = R1;
- CSYNC;
-dicount_done:
-#endif
-
- /* Clean down the hardware loops*/
- R2 = 0;
- LC1 = R2;
- LC0 = R2;
-
- /* There's a suitable victim in [P0-4] (because we've
- * advanced already). If it's a valid dirty write-back
- * CPLB, we need to flush the pending writes first.
- */
-
- CC = BITTST(R1, 0); /* Is it valid?*/
- IF !CC JUMP Ddoverwrite;/* nope.*/
- CC = BITTST(R1, 7); /* Is it dirty?*/
- IF !CC JUMP Ddoverwrite (BP); /* Nope.*/
- CC = BITTST(R1, 14); /* Is it Write-Through?*/
- IF CC JUMP Ddoverwrite; /* Yep*/
-
- /* This is a dirty page, so we need to flush all writes
- * that are pending on the page.
- */
-
- /* Retrieve the page start address*/
- R0 = [P0 - 0x104];
- [--sp] = rets;
- CALL dcplb_flush; /* R0==CPLB addr, R1==CPLB data*/
- rets = [sp++];
-Ddoverwrite:
-
- /* [P0-4] is a suitable victim CPLB, so we want to
- * overwrite it by moving all the following CPLBs
- * one space closer to the start.
- */
-
- R1.L = ((DCPLB_DATA15+4) & 0xFFFF); /*DCPLB_DATA15+4*/
- R1.H = ((DCPLB_DATA15+4) >> 16);
- R0 = P0;
-
- /* If the victim happens to be in DCPLB15,
- * we don't need to move anything.
- */
-
- CC = R1 == R0;
- IF CC JUMP de_moved;
- R1 = R1 - R0;
- R1 >>= 2;
- P1 = R1;
- LSETUP(ds_move, de_move) LC0=P1;
-ds_move:
- R0 = [P0++]; /* move data */
- [P0 - 8] = R0;
- R0 = [P0-0x104] /* move address */
-de_move: [P0-0x108] = R0;
-
- /* We've now made space in DCPLB15 for the new CPLB to be
- * installed. The next stage is to locate a CPLB in the
- * config table that covers the faulting address.
- */
-
-de_moved:NOP;
- R0 = I0; /* Our faulting address */
-
- P2.L = dpdt_table;
- P2.H = dpdt_table;
-#ifdef CONFIG_CPLB_INFO
- P3.L = dpdt_swapcount_table;
- P3.H = dpdt_swapcount_table;
- P3 += -8;
-#endif
-
- P1.L = page_size_table;
- P1.H = page_size_table;
-
- /* An extraction pattern, to retrieve bits 17:16.*/
-
- R1 = (16<<8)|2;
-dnext: R4 = [P2++]; /* address */
- R2 = [P2++]; /* data */
-#ifdef CONFIG_CPLB_INFO
- P3 += 8;
-#endif
-
- CC = R4 == -1;
- IF CC JUMP no_page_in_table;
-
- /* See if failed address > start address */
- CC = R4 <= R0(IU);
- IF !CC JUMP dnext;
-
- /* extract page size (17:16)*/
- R3 = EXTRACT(R2, R1.L) (Z);
-
- /* add page size to addr to get range */
-
- P5 = R3;
- P5 = P1 + (P5 << 2);
- R3 = [P5];
- R3 = R3 + R4;
-
- /* See if failed address < (start address + page size) */
- CC = R0 < R3(IU);
- IF !CC JUMP dnext;
-
- /* We've found the CPLB that should be installed, so
- * write it into CPLB15, masking off any caching bits
- * if necessary.
- */
-
- P1.L = (DCPLB_DATA15 & 0xFFFF);
- P1.H = (DCPLB_DATA15 >> 16);
-
- /* If the DCPLB has cache bits set, but caching hasn't
- * been enabled, then we want to mask off the cache-in-L1
- * bit before installing. Moreover, if caching is off, we
- * also want to ensure that the DCPLB has WT mode set, rather
- * than WB, since WB pages still trigger first-write exceptions
- * even when not caching is off, and the page isn't marked as
- * cachable. Finally, we could mark the page as clean, not dirty,
- * but we choose to leave that decision to the user; if the user
- * chooses to have a CPLB pre-defined as dirty, then they always
- * pay the cost of flushing during eviction, but don't pay the
- * cost of first-write exceptions to mark the page as dirty.
- */
-
-#ifdef CONFIG_BLKFIN_WT
- BITSET(R6, 14); /* Set WT*/
-#endif
-
- [P1] = R2;
- [P1-0x100] = R4;
-#ifdef CONFIG_CPLB_INFO
- R3 = [P3];
- R3 += 1;
- [P3] = R3;
-#endif
-
- /* We've installed the CPLB, so re-enable CPLBs. P4
- * points to DMEM_CONTROL, and R5 is the value we
- * last wrote to it, when we were disabling CPLBs.
- */
-
- BITSET(R5,ENDCPLB_P);
- CLI R2;
- .align 8;
- [P4] = R5;
- SSYNC;
- STI R2;
-
- ( R7:0,P5:0 ) = [SP++];
- R0 = CPLB_RELOADED;
- RTS;
-
-.data
-.align 4;
-page_size_table:
-.byte4 0x00000400; /* 1K */
-.byte4 0x00001000; /* 4K */
-.byte4 0x00100000; /* 1M */
-.byte4 0x00400000; /* 4M */
-
-.align 4;
-dcplb_preference:
-.byte4 0x00000001; /* valid bit */
-.byte4 0x00000082; /* dirty+lock bits */
-.byte4 0x00000002; /* lock bit */
diff --git a/cpu/bf533/cpu.c b/cpu/bf533/cpu.c
index 78e2b96..bd393d5 100644
--- a/cpu/bf533/cpu.c
+++ b/cpu/bf533/cpu.c
@@ -29,72 +29,28 @@
#include <asm/blackfin.h>
#include <command.h>
#include <asm/entry.h>
+#include <asm/cplb.h>
-#define SSYNC() asm("ssync;")
#define CACHE_ON 1
#define CACHE_OFF 0
-/* Data Attibutes*/
-
-#define SDRAM_IGENERIC (PAGE_SIZE_4MB | CPLB_L1_CHBL | CPLB_USER_RD | CPLB_VALID)
-#define SDRAM_IKERNEL (PAGE_SIZE_4MB | CPLB_L1_CHBL | CPLB_USER_RD | CPLB_VALID | CPLB_LOCK)
-#define L1_IMEMORY (PAGE_SIZE_1MB | CPLB_L1_CHBL | CPLB_USER_RD | CPLB_VALID | CPLB_LOCK)
-#define SDRAM_INON_CHBL (PAGE_SIZE_4MB | CPLB_USER_RD | CPLB_VALID)
-
-#define ANOMALY_05000158 0x200
-#define SDRAM_DGENERIC (PAGE_SIZE_4MB | CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_SUPV_WR | CPLB_USER_RD | CPLB_USER_WR | CPLB_VALID | ANOMALY_05000158)
-#define SDRAM_DNON_CHBL (PAGE_SIZE_4MB | CPLB_WT | CPLB_L1_AOW | CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID | ANOMALY_05000158)
-#define SDRAM_DKERNEL (PAGE_SIZE_4MB | CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_USER_RD | CPLB_SUPV_WR | CPLB_USER_WR | CPLB_VALID | CPLB_LOCK | ANOMALY_05000158)
-#define L1_DMEMORY (PAGE_SIZE_4KB | CPLB_L1_CHBL | CPLB_L1_AOW | CPLB_WT | CPLB_SUPV_WR | CPLB_USER_WR | CPLB_VALID | ANOMALY_05000158)
-#define SDRAM_EBIU (PAGE_SIZE_4MB | CPLB_WT | CPLB_L1_AOW | CPLB_USER_RD | CPLB_USER_WR | CPLB_SUPV_WR | CPLB_VALID | ANOMALY_05000158)
-
-static unsigned int icplb_table[16][2]={
- {0xFFA00000, L1_IMEMORY},
- {0x00000000, SDRAM_IKERNEL}, /*SDRAM_Page1*/
- {0x00400000, SDRAM_IKERNEL}, /*SDRAM_Page1*/
- {0x07C00000, SDRAM_IKERNEL}, /*SDRAM_Page14*/
- {0x00800000, SDRAM_IGENERIC}, /*SDRAM_Page2*/
- {0x00C00000, SDRAM_IGENERIC}, /*SDRAM_Page2*/
- {0x01000000, SDRAM_IGENERIC}, /*SDRAM_Page4*/
- {0x01400000, SDRAM_IGENERIC}, /*SDRAM_Page5*/
- {0x01800000, SDRAM_IGENERIC}, /*SDRAM_Page6*/
- {0x01C00000, SDRAM_IGENERIC}, /*SDRAM_Page7*/
- {0x02000000, SDRAM_IGENERIC}, /*SDRAM_Page8*/
- {0x02400000, SDRAM_IGENERIC}, /*SDRAM_Page9*/
- {0x02800000, SDRAM_IGENERIC}, /*SDRAM_Page10*/
- {0x02C00000, SDRAM_IGENERIC}, /*SDRAM_Page11*/
- {0x03000000, SDRAM_IGENERIC}, /*SDRAM_Page12*/
- {0x03400000, SDRAM_IGENERIC}, /*SDRAM_Page13*/
-};
-
-static unsigned int dcplb_table[16][2]={
- {0xFFA00000,L1_DMEMORY},
- {0x00000000,SDRAM_DKERNEL}, /*SDRAM_Page1*/
- {0x00400000,SDRAM_DKERNEL}, /*SDRAM_Page1*/
- {0x07C00000,SDRAM_DKERNEL}, /*SDRAM_Page15*/
- {0x00800000,SDRAM_DGENERIC}, /*SDRAM_Page2*/
- {0x00C00000,SDRAM_DGENERIC}, /*SDRAM_Page3*/
- {0x01000000,SDRAM_DGENERIC}, /*SDRAM_Page4*/
- {0x01400000,SDRAM_DGENERIC}, /*SDRAM_Page5*/
- {0x01800000,SDRAM_DGENERIC}, /*SDRAM_Page6*/
- {0x01C00000,SDRAM_DGENERIC}, /*SDRAM_Page7*/
- {0x02000000,SDRAM_DGENERIC}, /*SDRAM_Page8*/
- {0x02400000,SDRAM_DGENERIC}, /*SDRAM_Page9*/
- {0x02800000,SDRAM_DGENERIC}, /*SDRAM_Page10*/
- {0x02C00000,SDRAM_DGENERIC}, /*SDRAM_Page11*/
- {0x03000000,SDRAM_DGENERIC}, /*SDRAM_Page12*/
- {0x20000000,SDRAM_EBIU}, /*For Network */
-};
-
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+extern unsigned int icplb_table[page_descriptor_table_size][2];
+extern unsigned int dcplb_table[page_descriptor_table_size][2];
+
+#ifdef DEBUG
+#define pr_debug(fmt,arg...) printf(fmt,##arg)
+#else
+static inline int
+ __attribute__ ((format(printf, 1, 2))) pr_debug(const char *fmt, ...)
{
- __asm__ __volatile__
- ("cli r3;"
- "P0 = %0;"
- "JUMP (P0);"
- :
- : "r" (L1_ISRAM)
- );
+ return 0;
+}
+#endif
+
+int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+ __asm__ __volatile__("cli r3;" "P0 = %0;" "JUMP (P0);"::"r"(L1_ISRAM)
+ );
return 0;
}
@@ -112,29 +68,70 @@ int cleanup_before_linux(void)
void icache_enable(void)
{
- unsigned int *I0,*I1;
- int i;
-
+ unsigned int *I0, *I1;
+ int i, j = 0;
+#ifdef __ADSPBF537__
+ if ((*pCHIPID >> 28) < 2)
+ return;
+#endif
+
+ /* Before enable icache, disable it first */
+ icache_disable();
I0 = (unsigned int *)ICPLB_ADDR0;
I1 = (unsigned int *)ICPLB_DATA0;
- for(i=0;i<16;i++){
- *I0++ = icplb_table[i][0];
- *I1++ = icplb_table[i][1];
+ /* make sure the locked ones go in first */
+ for (i = 0; i < page_descriptor_table_size; i++) {
+ if (CPLB_LOCK & icplb_table[i][1]) {
+ pr_debug("adding %02i %02i 0x%08x 0x%08x\n", i, j,
+ icplb_table[i][0], icplb_table[i][1]);
+ *I0++ = icplb_table[i][0];
+ *I1++ = icplb_table[i][1];
+ j++;
}
+ }
+
+ for (i = 0; i < page_descriptor_table_size; i++) {
+ if (!(CPLB_LOCK & icplb_table[i][1])) {
+ pr_debug("adding %02i %02i 0x%08x 0x%08x\n", i, j,
+ icplb_table[i][0], icplb_table[i][1]);
+ *I0++ = icplb_table[i][0];
+ *I1++ = icplb_table[i][1];
+ j++;
+ if (j == 16) {
+ break;
+ }
+ }
+ }
+
+ /* Fill the rest with invalid entry */
+ if (j <= 15) {
+ for (; j <= 16; j++) {
+ pr_debug("filling %i with 0", j);
+ *I1++ = 0x0;
+ }
+
+ }
+
cli();
- SSYNC();
+ __builtin_bfin_ssync();
+ asm(" .align 8; ");
*(unsigned int *)IMEM_CONTROL = IMC | ENICPLB;
- SSYNC();
+ __builtin_bfin_ssync();
sti();
}
void icache_disable(void)
{
+#ifdef __ADSPBF537__
+ if ((*pCHIPID >> 28) < 2)
+ return;
+#endif
cli();
- SSYNC();
+ __builtin_bfin_ssync();
+ asm(" .align 8; ");
*(unsigned int *)IMEM_CONTROL &= ~(IMC | ENICPLB);
- SSYNC();
+ __builtin_bfin_ssync();
sti();
}
@@ -143,7 +140,7 @@ int icache_status(void)
unsigned int value;
value = *(unsigned int *)IMEM_CONTROL;
- if( value & (IMC|ENICPLB) )
+ if (value & (IMC | ENICPLB))
return CACHE_ON;
else
return CACHE_OFF;
@@ -151,38 +148,91 @@ int icache_status(void)
void dcache_enable(void)
{
- unsigned int *I0,*I1;
+ unsigned int *I0, *I1;
unsigned int temp;
- int i;
+ int i, j = 0;
+
+ /* Before enable dcache, disable it first */
+ dcache_disable();
I0 = (unsigned int *)DCPLB_ADDR0;
I1 = (unsigned int *)DCPLB_DATA0;
- for(i=0;i<16;i++){
- *I0++ = dcplb_table[i][0];
- *I1++ = dcplb_table[i][1];
+ /* make sure the locked ones go in first */
+ for (i = 0; i < page_descriptor_table_size; i++) {
+ if (CPLB_LOCK & dcplb_table[i][1]) {
+ pr_debug("adding %02i %02i 0x%08x 0x%08x\n", i, j,
+ dcplb_table[i][0], dcplb_table[i][1]);
+ *I0++ = dcplb_table[i][0];
+ *I1++ = dcplb_table[i][1];
+ j++;
+ } else {
+ pr_debug("skip %02i %02i 0x%08x 0x%08x\n", i, j,
+ dcplb_table[i][0], dcplb_table[i][1]);
+ }
+ }
+
+ for (i = 0; i < page_descriptor_table_size; i++) {
+ if (!(CPLB_LOCK & dcplb_table[i][1])) {
+ pr_debug("adding %02i %02i 0x%08x 0x%08x\n", i, j,
+ dcplb_table[i][0], dcplb_table[i][1]);
+ *I0++ = dcplb_table[i][0];
+ *I1++ = dcplb_table[i][1];
+ j++;
+ if (j == 16) {
+ break;
+ }
+ }
+ }
+
+ /* Fill the rest with invalid entry */
+ if (j <= 15) {
+ for (; j <= 16; j++) {
+ pr_debug("filling %i with 0", j);
+ *I1++ = 0x0;
}
+ }
+
cli();
temp = *(unsigned int *)DMEM_CONTROL;
- SSYNC();
- *(unsigned int *)DMEM_CONTROL = ACACHE_BCACHE |ENDCPLB |PORT_PREF0|temp;
- SSYNC();
+ __builtin_bfin_ssync();
+ asm(" .align 8; ");
+ *(unsigned int *)DMEM_CONTROL =
+ ACACHE_BCACHE | ENDCPLB | PORT_PREF0 | temp;
+ __builtin_bfin_ssync();
sti();
}
void dcache_disable(void)
{
+
+ unsigned int *I0, *I1;
+ int i;
+
cli();
- SSYNC();
- *(unsigned int *)DMEM_CONTROL &= ~(ACACHE_BCACHE |ENDCPLB |PORT_PREF0);
- SSYNC();
+ __builtin_bfin_ssync();
+ asm(" .align 8; ");
+ *(unsigned int *)DMEM_CONTROL &=
+ ~(ACACHE_BCACHE | ENDCPLB | PORT_PREF0);
+ __builtin_bfin_ssync();
sti();
+
+ /* after disable dcache,
+ * clear it so we don't confuse the next application
+ */
+ I0 = (unsigned int *)DCPLB_ADDR0;
+ I1 = (unsigned int *)DCPLB_DATA0;
+
+ for (i = 0; i < 16; i++) {
+ *I0++ = 0x0;
+ *I1++ = 0x0;
+ }
}
int dcache_status(void)
{
unsigned int value;
value = *(unsigned int *)DMEM_CONTROL;
- if( value & (ENDCPLB))
+ if (value & (ENDCPLB))
return CACHE_ON;
else
return CACHE_OFF;
diff --git a/cpu/bf533/cpu.h b/cpu/bf533/cpu.h
index 7ec3387..821363e 100644
--- a/cpu/bf533/cpu.h
+++ b/cpu/bf533/cpu.h
@@ -32,8 +32,8 @@
#define DEF_INTERRUPT_FLAGS 1
#define MAX_TIM_LOAD 0xFFFFFFFF
-void blackfin_irq_panic(int reason, struct pt_regs * reg);
-extern void dump(struct pt_regs * regs);
+void blackfin_irq_panic(int reason, struct pt_regs *reg);
+extern void dump(struct pt_regs *regs);
void display_excp(void);
asmlinkage void evt_nmi(void);
asmlinkage void evt_exception(void);
@@ -50,16 +50,17 @@ asmlinkage void evt_evt12(void);
asmlinkage void evt_evt13(void);
asmlinkage void evt_soft_int1(void);
asmlinkage void evt_system_call(void);
-void blackfin_irq_panic(int reason, struct pt_regs * regs);
+void blackfin_irq_panic(int reason, struct pt_regs *regs);
void blackfin_free_irq(unsigned int irq, void *dev_id);
-void call_isr(int irq, struct pt_regs * fp);
+void call_isr(int irq, struct pt_regs *fp);
void blackfin_do_irq(int vec, struct pt_regs *fp);
void blackfin_init_IRQ(void);
void blackfin_enable_irq(unsigned int irq);
void blackfin_disable_irq(unsigned int irq);
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
int blackfin_request_irq(unsigned int irq,
- void (*handler)(int, void *, struct pt_regs *),
- unsigned long flags,const char *devname,void *dev_id);
+ void (*handler) (int, void *, struct pt_regs *),
+ unsigned long flags, const char *devname,
+ void *dev_id);
void timer_init(void);
#endif
diff --git a/cpu/bf533/flush.S b/cpu/bf533/flush.S
index 9fbdefc..8010f72 100644
--- a/cpu/bf533/flush.S
+++ b/cpu/bf533/flush.S
@@ -3,13 +3,12 @@
*
* This file is subject to the terms and conditions of the GNU General Public
* License.
- *
- * Blackfin BF533/2.6 support : LG Soft India
*/
#define ASSEMBLY
#include <asm/linkage.h>
#include <asm/cplb.h>
+#include <config.h>
#include <asm/blackfin.h>
.text
@@ -20,7 +19,7 @@
* in the instruction cache.
*/
-ENTRY(flush_instruction_cache)
+ENTRY(_flush_instruction_cache)
[--SP] = ( R7:6, P5:4 );
LINK 12;
SP += -12;
@@ -33,7 +32,7 @@ ENTRY(flush_instruction_cache)
inext: R0 = [P5++];
R1 = [P4++];
[--SP] = RETS;
- CALL icplb_flush; /* R0 = page, R1 = data*/
+ CALL _icplb_flush; /* R0 = page, R1 = data*/
RETS = [SP++];
iskip: R6 += -1;
CC = R6;
@@ -52,7 +51,7 @@ iskip: R6 += -1;
*/
.align 2
-ENTRY(icplb_flush)
+ENTRY(_icplb_flush)
[--SP] = ( R7:0, P5:0 );
[--SP] = LC0;
[--SP] = LT0;
@@ -60,7 +59,7 @@ ENTRY(icplb_flush)
[--SP] = LC1;
[--SP] = LT1;
[--SP] = LB1;
-
+
/* If it's a 1K or 4K page, then it's quickest to
* just systematically flush all the addresses in
* the page, regardless of whether they're in the
@@ -86,11 +85,12 @@ ENTRY(icplb_flush)
*/
R3 = ((12<<8)|2); /* Extraction pattern */
- nop; /*Anamoly 05000209*/
- R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits*/
- R3.H = R4.L << 0 ; /* Save in extraction pattern for later deposit.*/
-
+ nop; /* Anamoly 05000209 */
+ R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits */
+ /* Save in extraction pattern for later deposit. */
+ R3.H = R4.L << 0;
+
/* So:
* R0 = Page start
* R1 = Page length (actually, offset into size/prefix tables)
@@ -101,7 +101,7 @@ ENTRY(icplb_flush)
* sub-bank, looking for dirty, valid tags that match our
* address prefix.
*/
-
+
P5.L = (ITEST_COMMAND & 0xFFFF);
P5.H = (ITEST_COMMAND >> 16);
P4.L = (ITEST_DATA0 & 0xFFFF);
@@ -119,7 +119,7 @@ ENTRY(icplb_flush)
* fetching tags, so we only have to set Set, Bank,
* Sub-bank and Way.
*/
-
+
P2 = 4;
LSETUP (ifs1, ife1) LC1 = P2;
ifs1: P0 = 32; /* iterate over all sets*/
@@ -142,7 +142,7 @@ ifs0: R6 = R5 << 5; /* Combine set*/
IF !CC JUMP ifskip; /* Skip it if it doesn't match.*/
/* Tag address matches against page, so this is an entry
- * we must flush.
+ * we must flush.
*/
R7 >>= 10; /* Mask off the non-address bits*/
@@ -181,17 +181,17 @@ iflush_whole_page:
IFLUSH [P0++]; /* because CSYNC can't end loops.*/
LSETUP (isall, ieall) LC0 = P1;
isall:IFLUSH [P0++];
-ieall: NOP;
+ieall: NOP;
SSYNC;
JUMP ifinished;
-/* This is an external function being called by the user
+/* This is an external function being called by the user
* application through __flush_cache_all. Currently this function
* serves the purpose of flushing all the pending writes in
* in the data cache.
*/
-ENTRY(flush_data_cache)
+ENTRY(_flush_data_cache)
[--SP] = ( R7:6, P5:4 );
LINK 12;
SP += -12;
@@ -209,7 +209,7 @@ next: R0 = [P5++];
CC = R2;
IF !CC JUMP skip; /* If not, ignore it.*/
[--SP] = RETS;
- CALL dcplb_flush; /* R0 = page, R1 = data*/
+ CALL _dcplb_flush; /* R0 = page, R1 = data*/
RETS = [SP++];
skip: R6 += -1;
CC = R6;
@@ -222,13 +222,13 @@ skip: R6 += -1;
/* This is an internal function to flush all pending
* writes in the cache associated with a particular DCPLB.
- *
+ *
* R0 - page's start address
* R1 - CPLB's data field.
*/
.align 2
-ENTRY(dcplb_flush)
+ENTRY(_dcplb_flush)
[--SP] = ( R7:0, P5:0 );
[--SP] = LC0;
[--SP] = LT0;
@@ -236,7 +236,7 @@ ENTRY(dcplb_flush)
[--SP] = LC1;
[--SP] = LT1;
[--SP] = LB1;
-
+
/* If it's a 1K or 4K page, then it's quickest to
* just systematically flush all the addresses in
* the page, regardless of whether they're in the
@@ -250,9 +250,9 @@ ENTRY(dcplb_flush)
/* We're only interested in the page's size, so extract
* this from the CPLB (bits 17:16), and scale to give an
- * offset into the page_size and page_prefix tables.
+ * offset into the page_size and page_prefix tables.
*/
-
+
R1 <<= 14;
R1 >>= 30;
R1 <<= 2;
@@ -260,9 +260,9 @@ ENTRY(dcplb_flush)
/* The page could be mapped into Bank A or Bank B, depending
* on (a) whether both banks are configured as cache, and
* (b) on whether address bit A[x] is set. x is determined
- * by DCBS in DMEM_CONTROL
+ * by DCBS in DMEM_CONTROL
*/
-
+
R2 = 0; /* Default to Bank A (Bank B would be 1)*/
P0.L = (DMEM_CONTROL & 0xFFFF);
@@ -290,7 +290,8 @@ bank_chosen:
R3 = ((12<<8)|2); /* Extraction pattern */
nop; /*Anamoly 05000209*/
R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits*/
- R3.H = R4.L << 0 ; /* Save in extraction pattern for later deposit.*/
+ /* Save in extraction pattern for later deposit.*/
+ R3.H = R4.L << 0;
/* So:
* R0 = Page start
@@ -303,7 +304,7 @@ bank_chosen:
* sub-bank, looking for dirty, valid tags that match our
* address prefix.
*/
-
+
P5.L = (DTEST_COMMAND & 0xFFFF);
P5.H = (DTEST_COMMAND >> 16);
P4.L = (DTEST_DATA0 & 0xFFFF);
@@ -322,7 +323,7 @@ bank_chosen:
* fetching tags, so we only have to set Set, Bank,
* Sub-bank and Way.
*/
-
+
P2 = 2;
LSETUP (fs1, fe1) LC1 = P2;
fs1: P0 = 64; /* iterate over all sets*/
@@ -386,7 +387,7 @@ dflush_whole_page:
CC = BITTST(R1, 16); /* Whether 1K or 4K*/
IF CC P1 = P2;
P1 += -1; /* Unroll one iteration*/
- SSYNC;
+ SSYNC;
FLUSHINV [P0++]; /* because CSYNC can't end loops.*/
LSETUP (eall, eall) LC0 = P1;
eall: FLUSHINV [P0++];
diff --git a/cpu/bf533/init_sdram.S b/cpu/bf533/init_sdram.S
new file mode 100644
index 0000000..d92c877
--- /dev/null
+++ b/cpu/bf533/init_sdram.S
@@ -0,0 +1,180 @@
+#define ASSEMBLY
+
+#include <linux/config.h>
+#include <config.h>
+#include <asm/blackfin.h>
+#include <asm/mem_init.h>
+.global init_sdram;
+
+#if (CONFIG_CCLK_DIV == 1)
+#define CONFIG_CCLK_ACT_DIV CCLK_DIV1
+#endif
+#if (CONFIG_CCLK_DIV == 2)
+#define CONFIG_CCLK_ACT_DIV CCLK_DIV2
+#endif
+#if (CONFIG_CCLK_DIV == 4)
+#define CONFIG_CCLK_ACT_DIV CCLK_DIV4
+#endif
+#if (CONFIG_CCLK_DIV == 8)
+#define CONFIG_CCLK_ACT_DIV CCLK_DIV8
+#endif
+#ifndef CONFIG_CCLK_ACT_DIV
+#define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly
+#endif
+
+init_sdram:
+ [--SP] = ASTAT;
+ [--SP] = RETS;
+ [--SP] = (R7:0);
+ [--SP] = (P5:0);
+
+#if (BFIN_BOOT_MODE == BF533_SPI_BOOT)
+ p0.h = hi(SPI_BAUD);
+ p0.l = lo(SPI_BAUD);
+ r0.l = CONFIG_SPI_BAUD;
+ w[p0] = r0.l;
+ SSYNC;
+#endif
+
+ /*
+ * PLL_LOCKCNT - how many SCLK Cycles to delay while PLL becomes stable
+ */
+ p0.h = hi(PLL_LOCKCNT);
+ p0.l = lo(PLL_LOCKCNT);
+ r0 = 0x300(Z);
+ w[p0] = r0.l;
+ ssync;
+
+ /*
+ * Put SDRAM in self-refresh, incase anything is running
+ */
+ P2.H = hi(EBIU_SDGCTL);
+ P2.L = lo(EBIU_SDGCTL);
+ R0 = [P2];
+ BITSET (R0, 24);
+ [P2] = R0;
+ SSYNC;
+
+ /*
+ * Set PLL_CTL with the value that we calculate in R0
+ * - [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
+ */
+
+ r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */
+ r0 = r0 << 9; /* Shift it over, */
+ r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/
+ r0 = r1 | r0;
+ r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */
+ r1 = r1 << 8; /* Shift it over */
+ r0 = r1 | r0; /* add them all together */
+
+ 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 */
+
+check_again:
+ p0.h = hi(PLL_STAT);
+ p0.l = lo(PLL_STAT);
+ R0 = W[P0](Z);
+ CC = BITTST(R0,5);
+ if ! CC jump check_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;
+
+ /*
+ * We now are running at speed, time to set the Async mem bank wait states
+ * This will speed up execution, since we are normally running from FLASH.
+ */
+
+ p2.h = (EBIU_AMBCTL1 >> 16);
+ p2.l = (EBIU_AMBCTL1 & 0xFFFF);
+ r0.h = (AMBCTL1VAL >> 16);
+ r0.l = (AMBCTL1VAL & 0xFFFF);
+ [p2] = r0;
+ ssync;
+
+ p2.h = (EBIU_AMBCTL0 >> 16);
+ p2.l = (EBIU_AMBCTL0 & 0xFFFF);
+ r0.h = (AMBCTL0VAL >> 16);
+ r0.l = (AMBCTL0VAL & 0xFFFF);
+ [p2] = r0;
+ ssync;
+
+ p2.h = (EBIU_AMGCTL >> 16);
+ p2.l = (EBIU_AMGCTL & 0xffff);
+ r0 = AMGCTLVAL;
+ w[p2] = r0;
+ ssync;
+
+ /*
+ * Now, Initialize the SDRAM,
+ * start with the SDRAM Refresh Rate Control Register
+ */
+ p0.l = lo(EBIU_SDRRC);
+ p0.h = hi(EBIU_SDRRC);
+ r0 = mem_SDRRC;
+ w[p0] = r0.l;
+ ssync;
+
+ /*
+ * SDRAM Memory Bank Control Register - bank specific parameters
+ */
+ p0.l = (EBIU_SDBCTL & 0xFFFF);
+ p0.h = (EBIU_SDBCTL >> 16);
+ r0 = mem_SDBCTL;
+ w[p0] = r0.l;
+ ssync;
+
+ /*
+ * SDRAM Global Control Register - global programmable parameters
+ * Disable self-refresh
+ */
+ P2.H = hi(EBIU_SDGCTL);
+ P2.L = lo(EBIU_SDGCTL);
+ R0 = [P2];
+ BITCLR (R0, 24);
+
+ /*
+ * Check if SDRAM is already powered up, if it is, enable self-refresh
+ */
+ p0.h = hi(EBIU_SDSTAT);
+ p0.l = lo(EBIU_SDSTAT);
+ r2.l = w[p0];
+ cc = bittst(r2,3);
+ if !cc jump skip;
+ NOP;
+ BITSET (R0, 23);
+skip:
+ [P2] = R0;
+ SSYNC;
+
+ /* Write in the new value in the register */
+ R0.L = lo(mem_SDGCTL);
+ R0.H = hi(mem_SDGCTL);
+ [P2] = R0;
+ SSYNC;
+ nop;
+
+ (P5:0) = [SP++];
+ (R7:0) = [SP++];
+ RETS = [SP++];
+ ASTAT = [SP++];
+ RTS;
+
diff --git a/cpu/bf533/init_sdram_bootrom_initblock.S b/cpu/bf533/init_sdram_bootrom_initblock.S
new file mode 100644
index 0000000..67074f9
--- /dev/null
+++ b/cpu/bf533/init_sdram_bootrom_initblock.S
@@ -0,0 +1,181 @@
+#define ASSEMBLY
+
+#include <linux/config.h>
+#include <config.h>
+#include <asm/blackfin.h>
+#include <asm/mem_init.h>
+.global init_sdram;
+
+#if (CONFIG_CCLK_DIV == 1)
+#define CONFIG_CCLK_ACT_DIV CCLK_DIV1
+#endif
+#if (CONFIG_CCLK_DIV == 2)
+#define CONFIG_CCLK_ACT_DIV CCLK_DIV2
+#endif
+#if (CONFIG_CCLK_DIV == 4)
+#define CONFIG_CCLK_ACT_DIV CCLK_DIV4
+#endif
+#if (CONFIG_CCLK_DIV == 8)
+#define CONFIG_CCLK_ACT_DIV CCLK_DIV8
+#endif
+#ifndef CONFIG_CCLK_ACT_DIV
+#define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly
+#endif
+
+init_sdram:
+ [--SP] = ASTAT;
+ [--SP] = RETS;
+ [--SP] = (R7:0);
+ [--SP] = (P5:0);
+
+#if (BFIN_BOOT_MODE == BF533_SPI_BOOT)
+ p0.h = hi(SPI_BAUD);
+ p0.l = lo(SPI_BAUD);
+ r0.l = CONFIG_SPI_BAUD_INITBLOCK;
+ w[p0] = r0.l;
+ SSYNC;
+#endif
+
+ /*
+ * PLL_LOCKCNT - how many SCLK Cycles to delay while PLL becomes stable
+ */
+ p0.h = hi(PLL_LOCKCNT);
+ p0.l = lo(PLL_LOCKCNT);
+ r0 = 0x300(Z);
+ w[p0] = r0.l;
+ ssync;
+
+ /*
+ * Put SDRAM in self-refresh, incase anything is running
+ */
+ P2.H = hi(EBIU_SDGCTL);
+ P2.L = lo(EBIU_SDGCTL);
+ R0 = [P2];
+ BITSET (R0, 24);
+ [P2] = R0;
+ SSYNC;
+
+ /*
+ * Set PLL_CTL with the value that we calculate in R0
+ * - [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
+ */
+
+ r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */
+ r0 = r0 << 9; /* Shift it over, */
+ r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/
+ r0 = r1 | r0;
+ r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */
+ r1 = r1 << 8; /* Shift it over */
+ r0 = r1 | r0; /* add them all together */
+
+ 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 */
+
+check_again:
+ p0.h = hi(PLL_STAT);
+ p0.l = lo(PLL_STAT);
+ R0 = W[P0](Z);
+ CC = BITTST(R0,5);
+ if ! CC jump check_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;
+
+ /*
+ * We now are running at speed, time to set the Async mem bank wait states
+ * This will speed up execution, since we are normally running from FLASH.
+ */
+
+ p2.h = (EBIU_AMBCTL1 >> 16);
+ p2.l = (EBIU_AMBCTL1 & 0xFFFF);
+ r0.h = (AMBCTL1VAL >> 16);
+ r0.l = (AMBCTL1VAL & 0xFFFF);
+ [p2] = r0;
+ ssync;
+
+ p2.h = (EBIU_AMBCTL0 >> 16);
+ p2.l = (EBIU_AMBCTL0 & 0xFFFF);
+ r0.h = (AMBCTL0VAL >> 16);
+ r0.l = (AMBCTL0VAL & 0xFFFF);
+ [p2] = r0;
+ ssync;
+
+ p2.h = (EBIU_AMGCTL >> 16);
+ p2.l = (EBIU_AMGCTL & 0xffff);
+ r0 = AMGCTLVAL;
+ w[p2] = r0;
+ ssync;
+
+ /*
+ * Now, Initialize the SDRAM,
+ * start with the SDRAM Refresh Rate Control Register
+ */
+ p0.l = lo(EBIU_SDRRC);
+ p0.h = hi(EBIU_SDRRC);
+ r0 = mem_SDRRC;
+ w[p0] = r0.l;
+ ssync;
+
+ /*
+ * SDRAM Memory Bank Control Register - bank specific parameters
+ */
+ p0.l = (EBIU_SDBCTL & 0xFFFF);
+ p0.h = (EBIU_SDBCTL >> 16);
+ r0 = mem_SDBCTL;
+ w[p0] = r0.l;
+ ssync;
+
+ /*
+ * SDRAM Global Control Register - global programmable parameters
+ * Disable self-refresh
+ */
+ P2.H = hi(EBIU_SDGCTL);
+ P2.L = lo(EBIU_SDGCTL);
+ R0 = [P2];
+ BITCLR (R0, 24);
+
+ /*
+ * Check if SDRAM is already powered up, if it is, enable self-refresh
+ */
+ p0.h = hi(EBIU_SDSTAT);
+ p0.l = lo(EBIU_SDSTAT);
+ r2.l = w[p0];
+ cc = bittst(r2,3);
+ if !cc jump skip;
+ NOP;
+ BITSET (R0, 23);
+skip:
+ [P2] = R0;
+ SSYNC;
+
+ /* Write in the new value in the register */
+ R0.L = lo(mem_SDGCTL);
+ R0.H = hi(mem_SDGCTL);
+ [P2] = R0;
+ SSYNC;
+ nop;
+
+
+ (P5:0) = [SP++];
+ (R7:0) = [SP++];
+ RETS = [SP++];
+ ASTAT = [SP++];
+ RTS;
+
diff --git a/cpu/bf533/interrupt.S b/cpu/bf533/interrupt.S
index e780dc6..a5de96b 100644
--- a/cpu/bf533/interrupt.S
+++ b/cpu/bf533/interrupt.S
@@ -40,225 +40,80 @@
*/
#define ASSEMBLY
-
+#include <config.h>
+#include <asm/blackfin.h>
#include <asm/hw_irq.h>
#include <asm/entry.h>
#include <asm/blackfin_defs.h>
-#include <asm/cpu/bf533_irq.h>
-.global blackfin_irq_panic;
+.global _blackfin_irq_panic;
.text
.align 2
#ifndef CONFIG_KGDB
-.global evt_emulation
-evt_emulation:
+.global _evt_emulation
+_evt_emulation:
SAVE_CONTEXT
r0 = IRQ_EMU;
r1 = seqstat;
sp += -12;
- call blackfin_irq_panic;
+ call _blackfin_irq_panic;
sp += 12;
rte;
#endif
-.global evt_nmi
-evt_nmi:
+.global _evt_nmi
+_evt_nmi:
SAVE_CONTEXT
r0 = IRQ_NMI;
r1 = RETN;
sp += -12;
- call blackfin_irq_panic;
+ call _blackfin_irq_panic;
sp += 12;
_evt_nmi_exit:
rtn;
-.global trap
-trap:
- [--sp] = r0;
- [--sp] = r1;
- [--sp] = p0;
- [--sp] = p1;
- [--sp] = astat;
- r0 = seqstat;
- R0 <<= 26;
- R0 >>= 26;
- p0 = r0;
- p1.l = EVTABLE;
- p1.h = EVTABLE;
- p0 = p1 + (p0 << 1);
- r1 = W[p0] (Z);
- p1 = r1;
- jump (pc + p1);
-
-.global _EVENT1
-_EVENT1:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT2
-_EVENT2:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT3
-_EVENT3:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT4
-_EVENT4:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT5
-_EVENT5:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT6
-_EVENT6:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT7
-_EVENT7:
- RAISE 15;
- JUMP.S _EXIT;
-
-.global _EVENT8
-_EVENT8:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT9
-_EVENT9:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT10
-_EVENT10:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT11
-_EVENT11:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT12
-_EVENT12:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT13
-_EVENT13:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT14
-_EVENT14:
-/* RAISE 14; */
- CALL _cplb_hdr;
- JUMP.S _EXIT;
-
-.global _EVENT19
-_EVENT19:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT20
-_EVENT20:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EVENT21
-_EVENT21:
- RAISE 14;
- JUMP.S _EXIT;
-
-.global _EXIT
-_EXIT:
- ASTAT = [sp++];
- p1 = [sp++];
- p0 = [sp++];
- r1 = [sp++];
- r0 = [sp++];
- RTX;
-
-EVTABLE:
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x0000;
- .byte2 0x003E;
- .byte2 0x0042;
- .byte4 0x0000;
- .byte4 0x0000;
- .byte4 0x0000;
- .byte4 0x0000;
- .byte4 0x0000;
- .byte4 0x0000;
- .byte4 0x0000;
- .byte2 0x0000;
- .byte2 0x001E;
- .byte2 0x0022;
- .byte2 0x0032;
- .byte2 0x002e;
- .byte2 0x0002;
- .byte2 0x0036;
- .byte2 0x002A;
- .byte2 0x001A;
- .byte2 0x0016;
- .byte2 0x000A;
- .byte2 0x000E;
- .byte2 0x0012;
- .byte2 0x0006;
- .byte2 0x0026;
+.global _trap
+_trap:
+ SAVE_ALL_SYS
+ r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
+ sp += -12;
+ call _trap_c
+ sp += 12;
+ RESTORE_ALL_SYS
+ rtx;
-.global evt_rst
-evt_rst:
+.global _evt_rst
+_evt_rst:
SAVE_CONTEXT
r0 = IRQ_RST;
r1 = RETN;
sp += -12;
- call do_reset;
+ call _do_reset;
sp += 12;
_evt_rst_exit:
- rtn;
+ rtn;
irq_panic:
r0 = IRQ_EVX;
r1 = sp;
sp += -12;
- call blackfin_irq_panic;
+ call _blackfin_irq_panic;
sp += 12;
-.global evt_ivhw
-evt_ivhw:
+.global _evt_ivhw
+_evt_ivhw:
SAVE_CONTEXT
RAISE 14;
_evt_ivhw_exit:
rti;
-.global evt_timer
-evt_timer:
+.global _evt_timer
+_evt_timer:
SAVE_CONTEXT
r0 = IRQ_CORETMR;
sp += -12;
@@ -269,91 +124,91 @@ evt_timer:
rti;
nop;
-.global evt_evt7
-evt_evt7:
+.global _evt_evt7
+_evt_evt7:
SAVE_CONTEXT
r0 = 7;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt7_exit:
RESTORE_CONTEXT
- rti;
+ rti;
-.global evt_evt8
-evt_evt8:
+.global _evt_evt8
+_evt_evt8:
SAVE_CONTEXT
r0 = 8;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt8_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt9
-evt_evt9:
+.global _evt_evt9
+_evt_evt9:
SAVE_CONTEXT
r0 = 9;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt9_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt10
-evt_evt10:
+.global _evt_evt10
+_evt_evt10:
SAVE_CONTEXT
r0 = 10;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt10_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt11
-evt_evt11:
+.global _evt_evt11
+_evt_evt11:
SAVE_CONTEXT
r0 = 11;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt11_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt12
-evt_evt12:
+.global _evt_evt12
+_evt_evt12:
SAVE_CONTEXT
r0 = 12;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt12_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt13
-evt_evt13:
+.global _evt_evt13
+_evt_evt13:
SAVE_CONTEXT
r0 = 13;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt13_exit:
RESTORE_CONTEXT
rti;
-.global evt_system_call
-evt_system_call:
+.global _evt_system_call
+_evt_system_call:
[--sp] = r0;
[--SP] = RETI;
r0 = [sp++];
@@ -363,7 +218,7 @@ evt_system_call:
r0 = [SP++];
SAVE_CONTEXT
sp += -12;
- call display_excp;
+ call _exception_handle;
sp += 12;
RESTORE_CONTEXT
RTI;
@@ -371,8 +226,8 @@ evt_system_call:
evt_system_call_exit:
rti;
-.global evt_soft_int1
-evt_soft_int1:
+.global _evt_soft_int1
+_evt_soft_int1:
[--sp] = r0;
[--SP] = RETI;
r0 = [sp++];
@@ -382,7 +237,7 @@ evt_soft_int1:
r0 = [SP++];
SAVE_CONTEXT
sp += -12;
- call display_excp;
+ call _exception_handle;
sp += 12;
RESTORE_CONTEXT
RTI;
diff --git a/cpu/bf533/interrupts.c b/cpu/bf533/interrupts.c
index df1a25e..9317f26 100644
--- a/cpu/bf533/interrupts.c
+++ b/cpu/bf533/interrupts.c
@@ -10,7 +10,7 @@
* Copyright 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca>
* Copyright 2003 Metrowerks/Motorola
* Copyright 2003 Bas Vermeulen <bas@buyways.nl>,
- * BuyWays B.V. (www.buyways.nl)
+ * BuyWays B.V. (www.buyways.nl)
*
* (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
@@ -37,14 +37,15 @@
#include <common.h>
#include <asm/machdep.h>
#include <asm/irq.h>
-#include <asm/cpu/defBF533.h>
+#include <config.h>
+#include <asm/blackfin.h>
#include "cpu.h"
static ulong timestamp;
static ulong last_time;
static int int_flag;
-int irq_flags; /* needed by asm-blackfin/system.h */
+int irq_flags; /* needed by asm-blackfin/system.h */
/* Functions just to satisfy the linker */
@@ -61,7 +62,7 @@ unsigned long long get_ticks(void)
* This function is derived from PowerPC code (timebase clock frequency).
* On BF533 it returns the number of timer ticks per second.
*/
-ulong get_tbclk (void)
+ulong get_tbclk(void)
{
ulong tbclk;
@@ -91,22 +92,22 @@ void udelay(unsigned long usec)
unsigned long cclk;
cclk = (CONFIG_CCLK_HZ);
- while ( usec > 1 ) {
- /*
- * how many clock ticks to delay?
- * - request(in useconds) * clock_ticks(Hz) / useconds/second
- */
+ while (usec > 1) {
+ /*
+ * how many clock ticks to delay?
+ * - request(in useconds) * clock_ticks(Hz) / useconds/second
+ */
if (usec < 1000) {
- delay = (usec * (cclk/244)) >> 12 ;
+ delay = (usec * (cclk / 244)) >> 12;
usec = 0;
} else {
- delay = (1000 * (cclk/244)) >> 12 ;
+ delay = (1000 * (cclk / 244)) >> 12;
usec -= 1000;
}
- asm volatile (" %0 = CYCLES;": "=g"(start));
+ asm volatile (" %0 = CYCLES;":"=r" (start));
do {
- asm volatile (" %0 = CYCLES; ": "=g"(stop));
+ asm volatile (" %0 = CYCLES; ":"=r" (stop));
} while (stop - start < delay);
}
@@ -117,7 +118,7 @@ void timer_init(void)
{
*pTCNTL = 0x1;
*pTSCALE = 0x0;
- *pTCOUNT = MAX_TIM_LOAD;
+ *pTCOUNT = MAX_TIM_LOAD;
*pTPERIOD = MAX_TIM_LOAD;
*pTCNTL = 0x7;
asm("CSYNC;");
@@ -146,20 +147,23 @@ ulong get_timer(ulong base)
/* Number of clocks elapsed */
ulong clocks = (MAX_TIM_LOAD - (*pTCOUNT));
- /* Find if the TCOUNT is reset
- timestamp gives the number of times
- TCOUNT got reset */
- if(clocks < last_time)
+ /**
+ * Find if the TCOUNT is reset
+ * timestamp gives the number of times
+ * TCOUNT got reset
+ */
+ if (clocks < last_time)
timestamp++;
last_time = clocks;
/* Get the number of milliseconds */
- milisec = clocks/(CONFIG_CCLK_HZ / 1000);
+ milisec = clocks / (CONFIG_CCLK_HZ / 1000);
- /* Find the number of millisonds
- that got elapsed before this TCOUNT
- cycle */
- milisec += timestamp * (MAX_TIM_LOAD/(CONFIG_CCLK_HZ / 1000));
+ /**
+ * Find the number of millisonds
+ * that got elapsed before this TCOUNT cycle
+ */
+ milisec += timestamp * (MAX_TIM_LOAD / (CONFIG_CCLK_HZ / 1000));
return (milisec - base);
}
diff --git a/cpu/bf533/ints.c b/cpu/bf533/ints.c
index 859f4b2..f476f14 100644
--- a/cpu/bf533/ints.c
+++ b/cpu/bf533/ints.c
@@ -51,9 +51,9 @@
void blackfin_irq_panic(int reason, struct pt_regs *regs)
{
printf("\n\nException: IRQ 0x%x entered\n", reason);
- printf("code=[0x%x], ", (unsigned int) (regs->seqstat & 0x3f));
- printf("stack frame=0x%x, ", (unsigned int) regs);
- printf("bad PC=0x%04x\n", (unsigned int) regs->pc);
+ printf("code=[0x%x], ", (unsigned int)(regs->seqstat & 0x3f));
+ printf("stack frame=0x%x, ", (unsigned int)regs);
+ printf("bad PC=0x%04x\n", (unsigned int)regs->pc);
dump(regs);
printf("Unhandled IRQ or exceptions!\n");
printf("Please reset the board \n");
@@ -61,46 +61,56 @@ void blackfin_irq_panic(int reason, struct pt_regs *regs)
void blackfin_init_IRQ(void)
{
- *(unsigned volatile long *) (SIC_IMASK) = SIC_UNMASK_ALL;
+ *(unsigned volatile long *)(SIC_IMASK) = SIC_UNMASK_ALL;
cli();
#ifndef CONFIG_KGDB
- *(unsigned volatile long *) (EVT_EMULATION_ADDR) = 0x0;
+ *(unsigned volatile long *)(EVT_EMULATION_ADDR) = 0x0;
#endif
- *(unsigned volatile long *) (EVT_NMI_ADDR) =
- (unsigned volatile long) evt_nmi;
- *(unsigned volatile long *) (EVT_EXCEPTION_ADDR) =
- (unsigned volatile long) trap;
- *(unsigned volatile long *) (EVT_HARDWARE_ERROR_ADDR) =
- (unsigned volatile long) evt_ivhw;
- *(unsigned volatile long *) (EVT_RESET_ADDR) =
- (unsigned volatile long) evt_rst;
- *(unsigned volatile long *) (EVT_TIMER_ADDR) =
- (unsigned volatile long) evt_timer;
- *(unsigned volatile long *) (EVT_IVG7_ADDR) =
- (unsigned volatile long) evt_evt7;
- *(unsigned volatile long *) (EVT_IVG8_ADDR) =
- (unsigned volatile long) evt_evt8;
- *(unsigned volatile long *) (EVT_IVG9_ADDR) =
- (unsigned volatile long) evt_evt9;
- *(unsigned volatile long *) (EVT_IVG10_ADDR) =
- (unsigned volatile long) evt_evt10;
- *(unsigned volatile long *) (EVT_IVG11_ADDR) =
- (unsigned volatile long) evt_evt11;
- *(unsigned volatile long *) (EVT_IVG12_ADDR) =
- (unsigned volatile long) evt_evt12;
- *(unsigned volatile long *) (EVT_IVG13_ADDR) =
- (unsigned volatile long) evt_evt13;
- *(unsigned volatile long *) (EVT_IVG14_ADDR) =
- (unsigned volatile long) evt_system_call;
- *(unsigned volatile long *) (EVT_IVG15_ADDR) =
- (unsigned volatile long) evt_soft_int1;
- *(volatile unsigned long *) ILAT = 0;
+ *(unsigned volatile long *)(EVT_NMI_ADDR) =
+ (unsigned volatile long)evt_nmi;
+ *(unsigned volatile long *)(EVT_EXCEPTION_ADDR) =
+ (unsigned volatile long)trap;
+ *(unsigned volatile long *)(EVT_HARDWARE_ERROR_ADDR) =
+ (unsigned volatile long)evt_ivhw;
+ *(unsigned volatile long *)(EVT_RESET_ADDR) =
+ (unsigned volatile long)evt_rst;
+ *(unsigned volatile long *)(EVT_TIMER_ADDR) =
+ (unsigned volatile long)evt_timer;
+ *(unsigned volatile long *)(EVT_IVG7_ADDR) =
+ (unsigned volatile long)evt_evt7;
+ *(unsigned volatile long *)(EVT_IVG8_ADDR) =
+ (unsigned volatile long)evt_evt8;
+ *(unsigned volatile long *)(EVT_IVG9_ADDR) =
+ (unsigned volatile long)evt_evt9;
+ *(unsigned volatile long *)(EVT_IVG10_ADDR) =
+ (unsigned volatile long)evt_evt10;
+ *(unsigned volatile long *)(EVT_IVG11_ADDR) =
+ (unsigned volatile long)evt_evt11;
+ *(unsigned volatile long *)(EVT_IVG12_ADDR) =
+ (unsigned volatile long)evt_evt12;
+ *(unsigned volatile long *)(EVT_IVG13_ADDR) =
+ (unsigned volatile long)evt_evt13;
+ *(unsigned volatile long *)(EVT_IVG14_ADDR) =
+ (unsigned volatile long)evt_system_call;
+ *(unsigned volatile long *)(EVT_IVG15_ADDR) =
+ (unsigned volatile long)evt_soft_int1;
+ *(volatile unsigned long *)ILAT = 0;
asm("csync;");
sti();
- *(volatile unsigned long *) IMASK = 0xffbf;
+ *(volatile unsigned long *)IMASK = 0xffbf;
asm("csync;");
}
+void exception_handle(void)
+{
+#if defined (CONFIG_PANIC_HANG)
+ display_excp();
+#else
+ udelay(100000); /* allow messages to go out */
+ do_reset(NULL, 0, 0, NULL);
+#endif
+}
+
void display_excp(void)
{
printf("Exception!\n");
diff --git a/cpu/bf533/serial.c b/cpu/bf533/serial.c
index 7b43ffd..eb55205 100644
--- a/cpu/bf533/serial.c
+++ b/cpu/bf533/serial.c
@@ -51,22 +51,21 @@
#include <asm/uaccess.h>
#include "bf533_serial.h"
-DECLARE_GLOBAL_DATA_PTR;
-
unsigned long pll_div_fact;
void calc_baud(void)
{
unsigned char i;
- int temp;
+ int temp;
+ u_long sclk = get_sclk();
- for(i = 0; i < sizeof(baud_table)/sizeof(int); i++) {
- temp = CONFIG_SCLK_HZ/(baud_table[i]*8);
- if ( temp && 0x1 == 1 ) {
+ for (i = 0; i < sizeof(baud_table) / sizeof(int); i++) {
+ temp = sclk / (baud_table[i] * 8);
+ if ((temp & 0x1) == 1) {
temp++;
}
- temp = temp/2;
- hw_baud_table[i].dl_high = (temp >> 8)& 0xFF;
+ temp = temp / 2;
+ hw_baud_table[i].dl_high = (temp >> 8) & 0xFF;
hw_baud_table[i].dl_low = (temp) & 0xFF;
}
}
@@ -74,6 +73,7 @@ void calc_baud(void)
void serial_setbrg(void)
{
int i;
+ DECLARE_GLOBAL_DATA_PTR;
calc_baud();
@@ -84,29 +84,29 @@ void serial_setbrg(void)
/* Enable UART */
*pUART_GCTL |= UART_GCTL_UCEN;
- asm("ssync;");
+ __builtin_bfin_ssync();
/* Set DLAB in LCR to Access DLL and DLH */
ACCESS_LATCH;
- asm("ssync;");
+ __builtin_bfin_ssync();
*pUART_DLL = hw_baud_table[i].dl_low;
- asm("ssync;");
+ __builtin_bfin_ssync();
*pUART_DLH = hw_baud_table[i].dl_high;
- asm("ssync;");
+ __builtin_bfin_ssync();
/* Clear DLAB in LCR to Access THR RBR IER */
ACCESS_PORT_IER;
- asm("ssync;");
+ __builtin_bfin_ssync();
/* Enable ERBFI and ELSI interrupts
- * to poll SIC_ISR register*/
+ * to poll SIC_ISR register*/
*pUART_IER = UART_IER_ELSI | UART_IER_ERBFI | UART_IER_ETBEI;
- asm("ssync;");
+ __builtin_bfin_ssync();
/* Set LCR to Word Lengh 8-bit word select */
*pUART_LCR = UART_LCR_WLS8;
- asm("ssync;");
+ __builtin_bfin_ssync();
return;
}
@@ -119,8 +119,7 @@ int serial_init(void)
void serial_putc(const char c)
{
- if ((*pUART_LSR) & UART_LSR_TEMT)
- {
+ if ((*pUART_LSR) & UART_LSR_TEMT) {
if (c == '\n')
serial_putc('\r');
@@ -148,17 +147,16 @@ int serial_getc(void)
int ret;
/* Poll for RX Interrupt */
- while (!((isr_val = *(volatile unsigned long *)SIC_ISR) & IRQ_UART_RX_BIT));
+ while (!((isr_val =
+ *(volatile unsigned long *)SIC_ISR) & IRQ_UART_RX_BIT)) ;
asm("csync;");
uart_lsr_val = *pUART_LSR; /* Clear status bit */
uart_rbr_val = *pUART_RBR; /* getc() */
if (isr_val & IRQ_UART_ERROR_BIT) {
- ret = -1;
- }
- else
- {
+ ret = -1;
+ } else {
ret = uart_rbr_val & 0xff;
}
@@ -180,10 +178,10 @@ static void local_put_char(char ch)
save_and_cli(flags);
/* Poll for TX Interruput */
- while (!((isr_val = *pSIC_ISR) & IRQ_UART_TX_BIT));
+ while (!((isr_val = *pSIC_ISR) & IRQ_UART_TX_BIT)) ;
asm("csync;");
- *pUART_THR = ch; /* putc() */
+ *pUART_THR = ch; /* putc() */
if (isr_val & IRQ_UART_ERROR_BIT) {
printf("?");
@@ -191,5 +189,5 @@ static void local_put_char(char ch)
restore_flags(flags);
- return ;
+ return;
}
diff --git a/cpu/bf533/start.S b/cpu/bf533/start.S
index 6d58575..8e2d725 100644
--- a/cpu/bf533/start.S
+++ b/cpu/bf533/start.S
@@ -1,5 +1,5 @@
/*
- * U-boot - start.S Startup file of u-boot for BF533
+ * U-boot - start.S Startup file of u-boot for BF533/BF561
*
* Copyright (c) 2005 blackfin.uclinux.org
*
@@ -32,15 +32,29 @@
/*
* Note: A change in this file subsequently requires a change in
- * board/$(board_name)/config.mk for a valid u-boot.bin
+ * board/$(board_name)/config.mk for a valid u-boot.bin
*/
#define ASSEMBLY
#include <linux/config.h>
-#include <asm/blackfin.h>
#include <config.h>
-#include <asm/mem_init.h>
+#include <asm/blackfin.h>
+
+.global _stext;
+.global __bss_start;
+.global start;
+.global _start;
+.global _rambase;
+.global _ramstart;
+.global _ramend;
+.global _bf533_data_dest;
+.global _bf533_data_size;
+.global edata;
+.global _initialize;
+.global _exit;
+.global flashdataend;
+.global init_sdram;
#if (CONFIG_CCLK_DIV == 1)
#define CONFIG_CCLK_ACT_DIV CCLK_DIV1
@@ -58,31 +72,17 @@
#define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly
#endif
-.global _stext;
-.global __bss_start;
-.global start;
-.global _start;
-.global _rambase;
-.global _ramstart;
-.global _ramend;
-.global _bf533_data_dest;
-.global _bf533_data_size;
-.global edata;
-.global _initialize;
-.global _exit;
-.global flashdataend;
-
.text
_start:
start:
_stext:
- R0 = 0x30;
+ R0 = 0x32;
SYSCFG = R0;
SSYNC;
/* As per HW reference manual DAG registers,
- * DATA and Address resgister shall be zero'd
+ * DATA and Address resgister shall be zero'd
* in initialization, after a reset state
*/
r1 = 0; /* Data registers zero'd */
@@ -99,7 +99,7 @@ _stext:
p3 = 0;
p4 = 0;
p5 = 0;
-
+
i0 = 0; /* DAG Registers zero'd */
i1 = 0;
i2 = 0;
@@ -120,8 +120,9 @@ _stext:
/* Set loop counters to zero, to make sure that
* hw loops are disabled.
*/
- lc0 = 0;
- lc1 = 0;
+ r0 = 0;
+ lc0 = r0;
+ lc1 = r0;
SSYNC;
@@ -149,106 +150,41 @@ no_soft_reset:
r1 = 0;
LSETUP(4,4) lc0 = p1;
[ p0 ++ ] = r1;
+
+ p0.h = hi(SIC_IWR);
+ p0.l = lo(SIC_IWR);
+ r0.l = 0x1;
+ w[p0] = r0.l;
+ 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
- */
-
- r0 = CONFIG_VCO_MULT; /* Load the VCO multiplier */
- r0 = r0 << 9; /* Shift it over */
- r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2? */
- r0 = r1 | r0;
- r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */
- r1 = r1 << 8; /* Shift it over */
- r0 = r1 | r0; /* add them all together */
-
- p0.h = (PLL_CTL >> 16);
- p0.l = (PLL_CTL & 0xFFFF); /* Load the address */
- cli r2; /* Disable interrupts */
- w[p0] = r0; /* Set the value */
- idle; /* Wait for the PLL to stablize */
- sti r2; /* Enable interrupts */
- ssync;
-
- /*
- * Turn on the CYCLES COUNTER
- */
- r2 = SYSCFG;
- BITSET (r2,1);
- SYSCFG = r2;
-
- /* Configure SCLK & CCLK Dividers */
- r0 = CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV;
- p0.h = (PLL_DIV >> 16);
- p0.l = (PLL_DIV & 0xFFFF);
- w[p0] = r0;
- ssync;
-
-wait_for_pll_stab:
- p0.h = (PLL_STAT >> 16);
- p0.l = (PLL_STAT & 0xFFFF);
- r0.l = w[p0];
- cc = bittst(r0,5);
- if !cc jump wait_for_pll_stab;
-
- /* Configure SDRAM if SDRAM is already not enabled */
- p0.l = (EBIU_SDSTAT & 0xFFFF);
- p0.h = (EBIU_SDSTAT >> 16);
- r0.l = w[p0];
- cc = bittst(r0, 3);
- if !cc jump skip_sdram_enable;
-
- /* SDRAM initialization */
- p0.l = (EBIU_SDGCTL & 0xFFFF);
- p0.h = (EBIU_SDGCTL >> 16); /* SDRAM Memory Global Control Register */
- r0.h = (mem_SDGCTL >> 16);
- r0.l = (mem_SDGCTL & 0xFFFF);
- [p0] = r0;
- ssync;
+ sp.l = (0xffb01000 & 0xFFFF);
+ sp.h = (0xffb01000 >> 16);
- p0.l = (EBIU_SDBCTL & 0xFFFF);
- p0.h = (EBIU_SDBCTL >> 16); /* SDRAM Memory Bank Control Register */
- r0 = mem_SDBCTL;
- w[p0] = r0.l;
- ssync;
+ call init_sdram;
- p0.l = (EBIU_SDRRC & 0xFFFF);
- p0.h = (EBIU_SDRRC >> 16); /* SDRAM Refresh Rate Control Register */
- r0 = mem_SDRRC;
- w[p0] = r0.l;
- ssync;
+ /* relocate into to RAM */
+ call get_pc;
+offset:
+ r2.l = offset;
+ r2.h = offset;
+ r3.l = start;
+ r3.h = start;
+ r1 = r2 - r3;
-skip_sdram_enable:
- nop;
+ r0 = r0 - r1;
+ p1 = r0;
-#ifndef CFG_NO_FLASH
- /* relocate into to RAM */
- p1.l = (CFG_FLASH_BASE & 0xffff);
- p1.h = (CFG_FLASH_BASE >> 16);
p2.l = (CFG_MONITOR_BASE & 0xffff);
p2.h = (CFG_MONITOR_BASE >> 16);
- r0.l = (CFG_MONITOR_LEN & 0xffff);
- r0.h = (CFG_MONITOR_LEN >> 16);
+
+ p3 = 0x04;
+ p4.l = ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) & 0xffff);
+ p4.h = ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) >> 16);
loop1:
- r1 = [p1];
- [p2] = r1;
- p3=0x4;
- p1=p1+p3;
- p2=p2+p3;
- r2=0x4;
- r0=r0-r2;
- cc=r0==0x0;
+ r1 = [p1 ++ p3];
+ [p2 ++ p3] = r1;
+ cc=p2==p4;
if !cc jump loop1;
-#endif
/*
* configure STACK
*/
@@ -273,7 +209,8 @@ loop1:
p0.l = (IMASK & 0xFFFF);
p0.h = (IMASK >> 16);
- r0 = IVG15_POS;
+ r0.l = LO(IVG15_POS);
+ r0.h = HI(IVG15_POS);
[p0] = r0;
raise 15;
p0.l = WAIT_HERE;
@@ -288,37 +225,10 @@ WAIT_HERE:
_real_start:
[ -- sp ] = reti;
-#ifdef CONFIG_EZKIT533
- p0.l = (WDOG_CTL & 0xFFFF);
- p0.h = (WDOG_CTL >> 16);
- r0 = WATCHDOG_DISABLE(z);
- w[p0] = r0;
-#endif
-
- /* Code for initializing Async mem banks */
- p2.h = (EBIU_AMBCTL1 >> 16);
- p2.l = (EBIU_AMBCTL1 & 0xFFFF);
- r0.h = (AMBCTL1VAL >> 16);
- r0.l = (AMBCTL1VAL & 0xFFFF);
- [p2] = r0;
- ssync;
-
- p2.h = (EBIU_AMBCTL0 >> 16);
- p2.l = (EBIU_AMBCTL0 & 0xFFFF);
- r0.h = (AMBCTL0VAL >> 16);
- r0.l = (AMBCTL0VAL & 0xFFFF);
- [p2] = r0;
- ssync;
-
- p2.h = (EBIU_AMGCTL >> 16);
- p2.l = (EBIU_AMGCTL & 0xffff);
- r0 = AMGCTLVAL;
- w[p2] = r0;
- ssync;
-
/* DMA reset code to Hi of L1 SRAM */
copy:
- P1.H = hi(SYSMMR_BASE); /* P1 Points to the beginning of SYSTEM MMR Space */
+ /* P1 Points to the beginning of SYSTEM MMR Space */
+ P1.H = hi(SYSMMR_BASE);
P1.L = lo(SYSMMR_BASE);
R0.H = reset_start; /* Source Address (high) */
@@ -329,7 +239,8 @@ copy:
R1.H = hi(L1_ISRAM); /* Destination Address (high) */
R1.L = lo(L1_ISRAM); /* Destination Address (low) */
R3.L = DMAEN; /* Source DMAConfig Value (8-bit words) */
- R4.L = (DI_EN | WNR | DMAEN); /* Destination DMAConfig Value (8-bit words) */
+ /* Destination DMAConfig Value (8-bit words) */
+ R4.L = (DI_EN | WNR | DMAEN);
DMA:
R6 = 0x1 (Z);
@@ -342,57 +253,24 @@ DMA:
Memory Read, 8-Bit Transfers, 1-D DMA, Flow - Stop */
W[P1+OFFSET_(MDMA_S0_CONFIG)] = R3;
- [P1+OFFSET_(MDMA_D0_START_ADDR)] = R1; /* Set Destination Base Address */
+ /* Set Destination Base Address */
+ [P1+OFFSET_(MDMA_D0_START_ADDR)] = R1;
W[P1+OFFSET_(MDMA_D0_X_COUNT)] = R2; /* Set Destination Count */
/* Set Destination DMAConfig = DMA Enable,
Memory Write, 8-Bit Transfers, 1-D DMA, Flow - Stop, IOC */
W[P1+OFFSET_(MDMA_D0_CONFIG)] = R4;
-
- IDLE; /* Wait for DMA to Complete */
-
- R0 = 0x1;
- W[P1+OFFSET_(MDMA_D0_IRQ_STATUS)] = R0; /* Write 1 to clear DMA interrupt */
-
- /* DMA reset code to DATA BANK A which uses this port
- * to avoid following problem
- * " Data from a Data Cache fill can be corrupoted after or during
- * instruction DMA if certain core stalls exist"
- */
-
-copy_as_data:
- R0.H = reset_start; /* Source Address (high) */
- R0.L = reset_start; /* Source Address (low) */
- R1.H = reset_end;
- R1.L = reset_end;
- R2 = R1 - R0; /* Count */
- R1.H = hi(DATA_BANKA_SRAM); /* Destination Address (high) */
- R1.L = lo(DATA_BANKA_SRAM); /* Destination Address (low) */
- R3.L = DMAEN; /* Source DMAConfig Value (8-bit words) */
- R4.L = (DI_EN | WNR | DMAEN); /* Destination DMAConfig Value (8-bit words) */
-
-DMA_DATA:
- R6 = 0x1 (Z);
- W[P1+OFFSET_(MDMA_S0_X_MODIFY)] = R6; /* Source Modify = 1 */
- W[P1+OFFSET_(MDMA_D0_X_MODIFY)] = R6; /* Destination Modify = 1 */
-
- [P1+OFFSET_(MDMA_S0_START_ADDR)] = R0; /* Set Source Base Address */
- W[P1+OFFSET_(MDMA_S0_X_COUNT)] = R2; /* Set Source Count */
- /* Set Source DMAConfig = DMA Enable,
- Memory Read, 8-Bit Transfers, 1-D DMA, Flow - Stop */
- W[P1+OFFSET_(MDMA_S0_CONFIG)] = R3;
-
- [P1+OFFSET_(MDMA_D0_START_ADDR)] = R1; /* Set Destination Base Address */
- W[P1+OFFSET_(MDMA_D0_X_COUNT)] = R2; /* Set Destination Count */
- /* Set Destination DMAConfig = DMA Enable,
- Memory Write, 8-Bit Transfers, 1-D DMA, Flow - Stop, IOC */
- W[P1+OFFSET_(MDMA_D0_CONFIG)] = R4;
-
- IDLE; /* Wait for DMA to Complete */
+
+WAIT_DMA_DONE:
+ p0.h = hi(MDMA_D0_IRQ_STATUS);
+ p0.l = lo(MDMA_D0_IRQ_STATUS);
+ R0 = W[P0](Z);
+ CC = BITTST(R0, 0);
+ if ! CC jump WAIT_DMA_DONE
R0 = 0x1;
- W[P1+OFFSET_(MDMA_D0_IRQ_STATUS)] = R0; /* Write 1 to clear DMA interrupt */
-copy_end: nop;
+ /* Write 1 to clear DMA interrupt */
+ W[P1+OFFSET_(MDMA_D0_IRQ_STATUS)] = R0;
/* Initialize BSS Section with 0 s */
p1.l = __bss_start;
@@ -433,3 +311,6 @@ reset_end: nop;
_exit:
jump.s _exit;
+get_pc:
+ r0 = rets;
+ rts;
diff --git a/cpu/bf533/start1.S b/cpu/bf533/start1.S
index 6f48124..72cfafb 100644
--- a/cpu/bf533/start1.S
+++ b/cpu/bf533/start1.S
@@ -24,8 +24,8 @@
#define ASSEMBLY
#include <linux/config.h>
-#include <asm/blackfin.h>
#include <config.h>
+#include <asm/blackfin.h>
.global start1;
.global _start1;
@@ -34,5 +34,5 @@
_start1:
start1:
sp += -12;
- call board_init_f;
+ call _board_init_f;
sp += 12;
diff --git a/cpu/bf533/traps.c b/cpu/bf533/traps.c
index 37470d5..5e2ce9b 100644
--- a/cpu/bf533/traps.c
+++ b/cpu/bf533/traps.c
@@ -42,6 +42,18 @@
#include <asm/page.h>
#include <asm/machdep.h>
#include "cpu.h"
+#include <asm/arch/anomaly.h>
+#include <asm/cplb.h>
+
+#ifdef DEBUG
+#define pr_debug(fmt,arg...) printf(fmt,##arg)
+#else
+static inline int
+ __attribute__ ((format(printf, 1, 2))) pr_debug(const char *fmt, ...)
+{
+ return 0;
+}
+#endif
void init_IRQ(void)
{
@@ -51,23 +63,188 @@ void init_IRQ(void)
void process_int(unsigned long vec, struct pt_regs *fp)
{
+ printf("interrupt\n");
return;
}
+extern unsigned int icplb_table[page_descriptor_table_size][2];
+extern unsigned int dcplb_table[page_descriptor_table_size][2];
+
+unsigned long last_cplb_fault_retx;
+
+static unsigned int cplb_sizes[4] =
+ { 1024, 4 * 1024, 1024 * 1024, 4 * 1024 * 1024 };
+
+void trap_c(struct pt_regs *regs)
+{
+ unsigned int addr;
+ unsigned long trapnr = (regs->seqstat) & SEQSTAT_EXCAUSE;
+ unsigned int i, j, size, *I0, *I1;
+ unsigned short data = 0;
+
+ switch (trapnr) {
+ /* 0x26 - Data CPLB Miss */
+ case VEC_CPLB_M:
+
+#ifdef ANOMALY_05000261
+ /*
+ * Work around an anomaly: if we see a new DCPLB fault,
+ * return without doing anything. Then,
+ * if we get the same fault again, handle it.
+ */
+ addr = last_cplb_fault_retx;
+ last_cplb_fault_retx = regs->retx;
+ printf("this time, curr = 0x%08x last = 0x%08x\n",
+ addr, last_cplb_fault_retx);
+ if (addr != last_cplb_fault_retx)
+ goto trap_c_return;
+#endif
+ data = 1;
+
+ case VEC_CPLB_I_M:
+
+ if (data) {
+ addr = *pDCPLB_FAULT_ADDR;
+ } else {
+ addr = *pICPLB_FAULT_ADDR;
+ }
+ for (i = 0; i < page_descriptor_table_size; i++) {
+ if (data) {
+ size = cplb_sizes[dcplb_table[i][1] >> 16];
+ j = dcplb_table[i][0];
+ } else {
+ size = cplb_sizes[icplb_table[i][1] >> 16];
+ j = icplb_table[i][0];
+ }
+ if ((j <= addr) && ((j + size) > addr)) {
+ pr_debug("found %i 0x%08x\n", i, j);
+ break;
+ }
+ }
+ if (i == page_descriptor_table_size) {
+ printf("something is really wrong\n");
+ do_reset(NULL, 0, 0, NULL);
+ }
+
+ /* Turn the cache off */
+ if (data) {
+ __builtin_bfin_ssync();
+ asm(" .align 8; ");
+ *(unsigned int *)DMEM_CONTROL &=
+ ~(ACACHE_BCACHE | ENDCPLB | PORT_PREF0);
+ __builtin_bfin_ssync();
+ } else {
+ __builtin_bfin_ssync();
+ asm(" .align 8; ");
+ *(unsigned int *)IMEM_CONTROL &= ~(IMC | ENICPLB);
+ __builtin_bfin_ssync();
+ }
+
+ if (data) {
+ I0 = (unsigned int *)DCPLB_ADDR0;
+ I1 = (unsigned int *)DCPLB_DATA0;
+ } else {
+ I0 = (unsigned int *)ICPLB_ADDR0;
+ I1 = (unsigned int *)ICPLB_DATA0;
+ }
+
+ j = 0;
+ while (*I1 & CPLB_LOCK) {
+ pr_debug("skipping %i %08p - %08x\n", j, I1, *I1);
+ *I0++;
+ *I1++;
+ j++;
+ }
+
+ pr_debug("remove %i 0x%08x 0x%08x\n", j, *I0, *I1);
+
+ for (; j < 15; j++) {
+ pr_debug("replace %i 0x%08x 0x%08x\n", j, I0, I0 + 1);
+ *I0++ = *(I0 + 1);
+ *I1++ = *(I1 + 1);
+ }
+
+ if (data) {
+ *I0 = dcplb_table[i][0];
+ *I1 = dcplb_table[i][1];
+ I0 = (unsigned int *)DCPLB_ADDR0;
+ I1 = (unsigned int *)DCPLB_DATA0;
+ } else {
+ *I0 = icplb_table[i][0];
+ *I1 = icplb_table[i][1];
+ I0 = (unsigned int *)ICPLB_ADDR0;
+ I1 = (unsigned int *)ICPLB_DATA0;
+ }
+
+ for (j = 0; j < 16; j++) {
+ pr_debug("%i 0x%08x 0x%08x\n", j, *I0++, *I1++);
+ }
+
+ /* Turn the cache back on */
+ if (data) {
+ j = *(unsigned int *)DMEM_CONTROL;
+ __builtin_bfin_ssync();
+ asm(" .align 8; ");
+ *(unsigned int *)DMEM_CONTROL =
+ ACACHE_BCACHE | ENDCPLB | PORT_PREF0 | j;
+ __builtin_bfin_ssync();
+ } else {
+ __builtin_bfin_ssync();
+ asm(" .align 8; ");
+ *(unsigned int *)IMEM_CONTROL = IMC | ENICPLB;
+ __builtin_bfin_ssync();
+ }
+
+ break;
+ default:
+ /* All traps come here */
+ printf("code=[0x%x], ", (unsigned int)(regs->seqstat & 0x3f));
+ printf("stack frame=0x%x, ", (unsigned int)regs);
+ printf("bad PC=0x%04x\n", (unsigned int)regs->pc);
+ dump(regs);
+ printf("\n\n");
+
+ printf("Unhandled IRQ or exceptions!\n");
+ printf("Please reset the board \n");
+ do_reset(NULL, 0, 0, NULL);
+ }
+
+ trap_c_return:
+ return;
+
+}
+
void dump(struct pt_regs *fp)
{
- printf("PC: %08lx\n", fp->pc);
- printf("SEQSTAT: %08lx SP: %08lx\n", (long) fp->seqstat,
- (long) fp);
- printf("R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n",
- fp->r0, fp->r1, fp->r2, fp->r3);
- printf("R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n",
- fp->r4, fp->r5, fp->r6, fp->r7);
- printf("P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n",
- fp->p0, fp->p1, fp->p2, fp->p3);
- printf("P4: %08lx P5: %08lx FP: %08lx\n", fp->p4, fp->p5,
- fp->fp);
- printf("A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n",
- fp->a0w, fp->a0x, fp->a1w, fp->a1x);
- printf("\n");
+ pr_debug("RETE: %08lx RETN: %08lx RETX: %08lx RETS: %08lx\n",
+ fp->rete, fp->retn, fp->retx, fp->rets);
+ pr_debug("IPEND: %04lx SYSCFG: %04lx\n", fp->ipend, fp->syscfg);
+ pr_debug("SEQSTAT: %08lx SP: %08lx\n", (long)fp->seqstat, (long)fp);
+ pr_debug("R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n",
+ fp->r0, fp->r1, fp->r2, fp->r3);
+ pr_debug("R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n",
+ fp->r4, fp->r5, fp->r6, fp->r7);
+ pr_debug("P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n",
+ fp->p0, fp->p1, fp->p2, fp->p3);
+ pr_debug("P4: %08lx P5: %08lx FP: %08lx\n",
+ fp->p4, fp->p5, fp->fp);
+ pr_debug("A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n",
+ fp->a0w, fp->a0x, fp->a1w, fp->a1x);
+
+ pr_debug("LB0: %08lx LT0: %08lx LC0: %08lx\n",
+ fp->lb0, fp->lt0, fp->lc0);
+ pr_debug("LB1: %08lx LT1: %08lx LC1: %08lx\n",
+ fp->lb1, fp->lt1, fp->lc1);
+ pr_debug("B0: %08lx L0: %08lx M0: %08lx I0: %08lx\n",
+ fp->b0, fp->l0, fp->m0, fp->i0);
+ pr_debug("B1: %08lx L1: %08lx M1: %08lx I1: %08lx\n",
+ fp->b1, fp->l1, fp->m1, fp->i1);
+ pr_debug("B2: %08lx L2: %08lx M2: %08lx I2: %08lx\n",
+ fp->b2, fp->l2, fp->m2, fp->i2);
+ pr_debug("B3: %08lx L3: %08lx M3: %08lx I3: %08lx\n",
+ fp->b3, fp->l3, fp->m3, fp->i3);
+
+ pr_debug("DCPLB_FAULT_ADDR=%p\n", *pDCPLB_FAULT_ADDR);
+ pr_debug("ICPLB_FAULT_ADDR=%p\n", *pICPLB_FAULT_ADDR);
+
}
diff --git a/cpu/bf533/video.c b/cpu/bf533/video.c
new file mode 100644
index 0000000..056564a
--- /dev/null
+++ b/cpu/bf533/video.c
@@ -0,0 +1,194 @@
+/*
+ * (C) Copyright 2000
+ * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
+ * (C) Copyright 2002
+ * Wolfgang Denk, wd@denx.de
+ * (C) Copyright 2006
+ * Aubrey Li, aubrey.li@analog.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <stdarg.h>
+#include <common.h>
+#include <config.h>
+#include <asm/blackfin.h>
+#include <i2c.h>
+#include <linux/types.h>
+#include <devices.h>
+
+#ifdef CONFIG_VIDEO
+#define NTSC_FRAME_ADDR 0x06000000
+#include "video.h"
+
+/* NTSC OUTPUT SIZE 720 * 240 */
+#define VERTICAL 2
+#define HORIZONTAL 4
+
+int is_vblank_line(const int line)
+{
+ /*
+ * This array contains a single bit for each line in
+ * an NTSC frame.
+ */
+ if ((line <= 18) || (line >= 264 && line <= 281) || (line == 528))
+ return true;
+
+ return false;
+}
+
+int NTSC_framebuffer_init(char *base_address)
+{
+ const int NTSC_frames = 1;
+ const int NTSC_lines = 525;
+ char *dest = base_address;
+ int frame_num, line_num;
+
+ for (frame_num = 0; frame_num < NTSC_frames; ++frame_num) {
+ for (line_num = 1; line_num <= NTSC_lines; ++line_num) {
+ unsigned int code;
+ int offset = 0;
+ int i;
+
+ if (is_vblank_line(line_num))
+ offset++;
+
+ if (line_num > 266 || line_num < 3)
+ offset += 2;
+
+ /* Output EAV code */
+ code = SystemCodeMap[offset].EAV;
+ write_dest_byte((char)(code >> 24) & 0xff);
+ write_dest_byte((char)(code >> 16) & 0xff);
+ write_dest_byte((char)(code >> 8) & 0xff);
+ write_dest_byte((char)(code) & 0xff);
+
+ /* Output horizontal blanking */
+ for (i = 0; i < 67 * 2; ++i) {
+ write_dest_byte(0x80);
+ write_dest_byte(0x10);
+ }
+
+ /* Output SAV */
+ code = SystemCodeMap[offset].SAV;
+ write_dest_byte((char)(code >> 24) & 0xff);
+ write_dest_byte((char)(code >> 16) & 0xff);
+ write_dest_byte((char)(code >> 8) & 0xff);
+ write_dest_byte((char)(code) & 0xff);
+
+ /* Output empty horizontal data */
+ for (i = 0; i < 360 * 2; ++i) {
+ write_dest_byte(0x80);
+ write_dest_byte(0x10);
+ }
+ }
+ }
+
+ return dest - base_address;
+}
+
+void fill_frame(char *Frame, int Value)
+{
+ int *OddPtr32;
+ int OddLine;
+ int *EvenPtr32;
+ int EvenLine;
+ int i;
+ int *data;
+ int m, n;
+
+ /* fill odd and even frames */
+ for (OddLine = 22, EvenLine = 285; OddLine < 263; OddLine++, EvenLine++) {
+ OddPtr32 = (int *)((Frame + (OddLine * 1716)) + 276);
+ EvenPtr32 = (int *)((Frame + (EvenLine * 1716)) + 276);
+ for (i = 0; i < 360; i++, OddPtr32++, EvenPtr32++) {
+ *OddPtr32 = Value;
+ *EvenPtr32 = Value;
+ }
+ }
+
+ for (m = 0; m < VERTICAL; m++) {
+ data = (int *)u_boot_logo.data;
+ for (OddLine = (22 + m), EvenLine = (285 + m);
+ OddLine < (u_boot_logo.height * VERTICAL) + (22 + m);
+ OddLine += VERTICAL, EvenLine += VERTICAL) {
+ OddPtr32 = (int *)((Frame + ((OddLine) * 1716)) + 276);
+ EvenPtr32 =
+ (int *)((Frame + ((EvenLine) * 1716)) + 276);
+ for (i = 0; i < u_boot_logo.width / 2; i++) {
+ /* enlarge one pixel to m x n */
+ for (n = 0; n < HORIZONTAL; n++) {
+ *OddPtr32++ = *data;
+ *EvenPtr32++ = *data;
+ }
+ data++;
+ }
+ }
+ }
+}
+
+void video_putc(const char c)
+{
+}
+
+void video_puts(const char *s)
+{
+}
+
+static int video_init(void)
+{
+ char *NTSCFrame;
+ NTSCFrame = (char *)NTSC_FRAME_ADDR;
+ NTSC_framebuffer_init(NTSCFrame);
+ fill_frame(NTSCFrame, BLUE);
+
+ *pPPI_CONTROL = 0x0082;
+ *pPPI_FRAME = 0x020D;
+
+ *pDMA0_START_ADDR = NTSCFrame;
+ *pDMA0_X_COUNT = 0x035A;
+ *pDMA0_X_MODIFY = 0x0002;
+ *pDMA0_Y_COUNT = 0x020D;
+ *pDMA0_Y_MODIFY = 0x0002;
+ *pDMA0_CONFIG = 0x1015;
+ *pPPI_CONTROL = 0x0083;
+ return 0;
+}
+
+int drv_video_init(void)
+{
+ int error, devices = 1;
+
+ device_t videodev;
+
+ video_init(); /* Video initialization */
+
+ memset(&videodev, 0, sizeof(videodev));
+
+ strcpy(videodev.name, "video");
+ videodev.ext = DEV_EXT_VIDEO; /* Video extensions */
+ videodev.flags = DEV_FLAGS_OUTPUT; /* Output only */
+ videodev.putc = video_putc; /* 'putc' function */
+ videodev.puts = video_puts; /* 'puts' function */
+
+ error = device_register(&videodev);
+
+ return (error == 0) ? devices : error;
+}
+#endif
diff --git a/cpu/bf533/video.h b/cpu/bf533/video.h
new file mode 100644
index 0000000..d237f6a
--- /dev/null
+++ b/cpu/bf533/video.h
@@ -0,0 +1,25 @@
+#include <video_logo.h>
+#define write_dest_byte(val) {*dest++=val;}
+#define BLACK (0x01800180) /* black pixel pattern */
+#define BLUE (0x296E29F0) /* blue pixel pattern */
+#define RED (0x51F0515A) /* red pixel pattern */
+#define MAGENTA (0x6ADE6ACA) /* magenta pixel pattern */
+#define GREEN (0x91229136) /* green pixel pattern */
+#define CYAN (0xAA10AAA6) /* cyan pixel pattern */
+#define YELLOW (0xD292D210) /* yellow pixel pattern */
+#define WHITE (0xFE80FE80) /* white pixel pattern */
+
+#define true 1
+#define false 0
+
+typedef struct {
+ unsigned int SAV;
+ unsigned int EAV;
+} SystemCodeType;
+
+const SystemCodeType SystemCodeMap[4] = {
+ {0xFF000080, 0xFF00009D},
+ {0xFF0000AB, 0xFF0000B6},
+ {0xFF0000C7, 0xFF0000DA},
+ {0xFF0000EC, 0xFF0000F1}
+};
generated by cgit v1.1 at 2024-11-26 01:49:37 +0000