diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/cpu/74xx_7xx/cpu.c | 19 | ||||
| -rw-r--r-- | arch/powerpc/cpu/74xx_7xx/interrupts.c | 11 | ||||
| -rw-r--r-- | arch/powerpc/cpu/74xx_7xx/speed.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/cpu/74xx_7xx/start.S | 5 | ||||
| -rw-r--r-- | arch/powerpc/cpu/74xx_7xx/traps.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc5xxx/Makefile | 5 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc5xxx/memcpy_mpc5200.c | 71 | ||||
| -rw-r--r-- | arch/powerpc/lib/Makefile | 5 |
8 files changed, 94 insertions, 34 deletions
diff --git a/arch/powerpc/cpu/74xx_7xx/cpu.c b/arch/powerpc/cpu/74xx_7xx/cpu.c index 3c17277..14d3ce4 100644 --- a/arch/powerpc/cpu/74xx_7xx/cpu.c +++ b/arch/powerpc/cpu/74xx_7xx/cpu.c @@ -49,11 +49,6 @@ #include <fdt_support.h> #endif -#ifdef CONFIG_AMIGAONEG3SE -#include "../board/MAI/AmigaOneG3SE/via686.h" -#include "../board/MAI/AmigaOneG3SE/memio.h" -#endif - DECLARE_GLOBAL_DATA_PTR; cpu_t @@ -277,19 +272,17 @@ do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) /* * For the 7400 the TB clock runs at 1/4 the cpu bus speed. */ -#if defined(CONFIG_AMIGAONEG3SE) || defined(CONFIG_SYS_CONFIG_BUS_CLK) +#ifndef CONFIG_SYS_BUS_CLK +#define CONFIG_SYS_BUS_CLK gd->bus_clk +#endif + unsigned long get_tbclk(void) { - return (gd->bus_clk / 4); + return CONFIG_SYS_BUS_CLK / 4; } -#else /* ! CONFIG_AMIGAONEG3SE and !CONFIG_SYS_CONFIG_BUS_CLK*/ -unsigned long get_tbclk (void) -{ - return CONFIG_SYS_BUS_HZ / 4; -} -#endif /* CONFIG_AMIGAONEG3SE or CONFIG_SYS_CONFIG_BUS_CLK*/ /* ------------------------------------------------------------------------- */ + #if defined(CONFIG_WATCHDOG) #if !defined(CONFIG_PCIPPC2) && !defined(CONFIG_BAB7xx) void diff --git a/arch/powerpc/cpu/74xx_7xx/interrupts.c b/arch/powerpc/cpu/74xx_7xx/interrupts.c index 0ea1aec..c2856c9 100644 --- a/arch/powerpc/cpu/74xx_7xx/interrupts.c +++ b/arch/powerpc/cpu/74xx_7xx/interrupts.c @@ -34,20 +34,19 @@ int interrupt_init_cpu (unsigned *decrementer_count) { -#if defined(DEBUG) && !defined(CONFIG_AMIGAONEG3SE) - printf("interrupt_init: GT main cause reg: %08x:%08x\n", + debug("interrupt_init: GT main cause reg: %08x:%08x\n", GTREGREAD(LOW_INTERRUPT_CAUSE_REGISTER), GTREGREAD(HIGH_INTERRUPT_CAUSE_REGISTER)); - printf("interrupt_init: ethernet cause regs: %08x %08x %08x\n", + debug("interrupt_init: ethernet cause regs: %08x %08x %08x\n", GTREGREAD(ETHERNET0_INTERRUPT_CAUSE_REGISTER), GTREGREAD(ETHERNET1_INTERRUPT_CAUSE_REGISTER), GTREGREAD(ETHERNET2_INTERRUPT_CAUSE_REGISTER)); - printf("interrupt_init: ethernet mask regs: %08x %08x %08x\n", + debug("interrupt_init: ethernet mask regs: %08x %08x %08x\n", GTREGREAD(ETHERNET0_INTERRUPT_MASK_REGISTER), GTREGREAD(ETHERNET1_INTERRUPT_MASK_REGISTER), GTREGREAD(ETHERNET2_INTERRUPT_MASK_REGISTER)); - puts("interrupt_init: setting decrementer_count\n"); -#endif + debug("interrupt_init: setting decrementer_count\n"); + *decrementer_count = get_tbclk() / CONFIG_SYS_HZ; return (0); diff --git a/arch/powerpc/cpu/74xx_7xx/speed.c b/arch/powerpc/cpu/74xx_7xx/speed.c index f2fdcd5..6450c3c 100644 --- a/arch/powerpc/cpu/74xx_7xx/speed.c +++ b/arch/powerpc/cpu/74xx_7xx/speed.c @@ -25,10 +25,6 @@ #include <74xx_7xx.h> #include <asm/processor.h> -#ifdef CONFIG_AMIGAONEG3SE -#include "../board/MAI/AmigaOneG3SE/via686.h" -#endif - DECLARE_GLOBAL_DATA_PTR; extern unsigned long get_board_bus_clk (void); diff --git a/arch/powerpc/cpu/74xx_7xx/start.S b/arch/powerpc/cpu/74xx_7xx/start.S index 88fdf88..a36af5a 100644 --- a/arch/powerpc/cpu/74xx_7xx/start.S +++ b/arch/powerpc/cpu/74xx_7xx/start.S @@ -745,9 +745,8 @@ in_ram: bne 5b 6: mr r3, r10 /* Destination Address */ -#if defined(CONFIG_AMIGAONEG3SE) || \ - defined(CONFIG_DB64360) || \ - defined(CONFIG_DB64460) || \ +#if defined(CONFIG_DB64360) || \ + defined(CONFIG_DB64460) || \ defined(CONFIG_CPCI750) || \ defined(CONFIG_PPMC7XX) || \ defined(CONFIG_P3Mx) diff --git a/arch/powerpc/cpu/74xx_7xx/traps.c b/arch/powerpc/cpu/74xx_7xx/traps.c index 5073b05..7ae81eb 100644 --- a/arch/powerpc/cpu/74xx_7xx/traps.c +++ b/arch/powerpc/cpu/74xx_7xx/traps.c @@ -37,20 +37,12 @@ #include <kgdb.h> #include <asm/processor.h> -#ifdef CONFIG_AMIGAONEG3SE -DECLARE_GLOBAL_DATA_PTR; -#endif - /* Returns 0 if exception not found and fixup otherwise. */ extern unsigned long search_exception_table(unsigned long); /* THIS NEEDS CHANGING to use the board info structure. */ -#ifdef CONFIG_AMIGAONEG3SE -#define END_OF_MEM (gd->bd->bi_memstart + gd->bd->bi_memsize) -#else #define END_OF_MEM 0x02000000 -#endif /* * Trap & Exception support diff --git a/arch/powerpc/cpu/mpc5xxx/Makefile b/arch/powerpc/cpu/mpc5xxx/Makefile index 0ee0611..4ab2b7b 100644 --- a/arch/powerpc/cpu/mpc5xxx/Makefile +++ b/arch/powerpc/cpu/mpc5xxx/Makefile @@ -30,6 +30,11 @@ SOBJS = io.o firmware_sc_task_bestcomm.impl.o COBJS = i2c.o traps.o cpu.o cpu_init.o ide.o interrupts.o \ loadtask.o pci_mpc5200.o serial.o speed.o usb_ohci.o usb.o +# Workaround for local bus unaligned access problem on MPC5200 +#ifdef CONFIG_MPC5200 +COBJS += memcpy_mpc5200.o +#endif + SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) START := $(addprefix $(obj),$(START)) diff --git a/arch/powerpc/cpu/mpc5xxx/memcpy_mpc5200.c b/arch/powerpc/cpu/mpc5xxx/memcpy_mpc5200.c new file mode 100644 index 0000000..0950354 --- /dev/null +++ b/arch/powerpc/cpu/mpc5xxx/memcpy_mpc5200.c @@ -0,0 +1,71 @@ +/* + * (C) Copyright 2010 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * 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 + */ + +/* + * This is a workaround for issues on the MPC5200, where unaligned + * 32-bit-accesses to the local bus will deliver corrupted data. This + * happens for example when trying to use memcpy() from an odd NOR + * flash address; the behaviour can be also seen when using "md" on an + * odd NOR flash address (but there it is not a bug in U-Boot, which + * only shows the behaviour of this processor). + * + * For memcpy(), we test if either the source or the target address + * are not 32 bit aligned, and - if so - if the source address is in + * NOR flash: in this case we perform a byte-wise (slow) then; for + * aligned operations of non-flash areas we use the optimized (fast) + * real __memcpy(). This way we minimize the performance impact of + * this workaround. + * + */ + +#include <common.h> +#include <flash.h> +#include <linux/types.h> + +void *memcpy(void *trg, const void *src, size_t len) +{ + extern void* __memcpy(void *, const void *, size_t); + char *s = (char *)src; + char *t = (char *)trg; + void *dest = (void *)src; + + /* + * Check is source address is in flash: + * If not, we use the fast assembler code + */ + if (((((unsigned long)s & 3) == 0) /* source aligned */ + && /* AND */ + (((unsigned long)t & 3) == 0)) /* target aligned, */ + || /* or */ + (addr2info((ulong)s) == NULL)) { /* source not in flash */ + return __memcpy(trg, src, len); + } + + /* + * Copying from flash, perform byte by byte copy. + */ + while (len-- > 0) + *t++ = *s++; + + return dest; +} diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index 5f85502..bf23790 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -43,6 +43,11 @@ COBJS-y += time.o SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) +# Workaround for local bus unaligned access problem on MPC5200 +ifdef CONFIG_MPC5200 +$(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy +endif + $(LIB): $(obj).depend $(OBJS) @if ! $(CROSS_COMPILE)readelf -S $(OBJS) | grep -q '\.fixup.*PROGBITS';\ then \ |