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authorPeter Tyser <ptyser@xes-inc.com>2010-04-12 22:28:04 -0500
committerWolfgang Denk <wd@denx.de>2010-04-13 09:13:03 +0200
commitea0364f1bbfed1e3ea711147420875cf338fe77a (patch)
tree15c051bc4d2e94c1661c73e1b87c22c7beda7c24 /lib_avr32
parent89f39e177e7b0152aa1d3152baa25d986e36cdcf (diff)
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Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk This change is intended to clean up the top-level directory structure and more closely mimic Linux's directory organization. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'lib_avr32')
-rw-r--r--lib_avr32/Makefile49
-rw-r--r--lib_avr32/board.c360
-rw-r--r--lib_avr32/bootm.c209
-rw-r--r--lib_avr32/config.mk29
-rw-r--r--lib_avr32/interrupts.c46
-rw-r--r--lib_avr32/memset.S81
6 files changed, 0 insertions, 774 deletions
diff --git a/lib_avr32/Makefile b/lib_avr32/Makefile
deleted file mode 100644
index 37b8051..0000000
--- a/lib_avr32/Makefile
+++ /dev/null
@@ -1,49 +0,0 @@
-#
-# (C) Copyright 2002-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# (C) Copyright 2004-2006 Atmel Corporation
-#
-# 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 $(TOPDIR)/config.mk
-
-LIB = $(obj)lib$(ARCH).a
-
-SOBJS-y += memset.o
-
-COBJS-y += board.o
-COBJS-y += bootm.o
-COBJS-y += interrupts.o
-
-SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
-OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
-
-$(LIB): $(obj).depend $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/lib_avr32/board.c b/lib_avr32/board.c
deleted file mode 100644
index 917ed6c..0000000
--- a/lib_avr32/board.c
+++ /dev/null
@@ -1,360 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * 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 <common.h>
-#include <command.h>
-#include <malloc.h>
-#include <stdio_dev.h>
-#include <timestamp.h>
-#include <version.h>
-#include <net.h>
-
-#ifdef CONFIG_BITBANGMII
-#include <miiphy.h>
-#endif
-
-#include <asm/initcalls.h>
-#include <asm/sections.h>
-
-#ifndef CONFIG_IDENT_STRING
-#define CONFIG_IDENT_STRING ""
-#endif
-
-DECLARE_GLOBAL_DATA_PTR;
-
-const char version_string[] =
- U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME") " CONFIG_IDENT_STRING;
-
-unsigned long monitor_flash_len;
-
-/* Weak aliases for optional board functions */
-static int __do_nothing(void)
-{
- return 0;
-}
-int board_postclk_init(void) __attribute__((weak, alias("__do_nothing")));
-int board_early_init_r(void) __attribute__((weak, alias("__do_nothing")));
-
-#ifdef CONFIG_SYS_DMA_ALLOC_LEN
-#include <asm/arch/cacheflush.h>
-#include <asm/io.h>
-
-static unsigned long dma_alloc_start;
-static unsigned long dma_alloc_end;
-static unsigned long dma_alloc_brk;
-
-static void dma_alloc_init(void)
-{
- unsigned long monitor_addr;
-
- monitor_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
- dma_alloc_end = monitor_addr - CONFIG_SYS_MALLOC_LEN;
- dma_alloc_start = dma_alloc_end - CONFIG_SYS_DMA_ALLOC_LEN;
- dma_alloc_brk = dma_alloc_start;
-
- printf("DMA: Using memory from 0x%08lx to 0x%08lx\n",
- dma_alloc_start, dma_alloc_end);
-
- dcache_invalidate_range(cached(dma_alloc_start),
- dma_alloc_end - dma_alloc_start);
-}
-
-void *dma_alloc_coherent(size_t len, unsigned long *handle)
-{
- unsigned long paddr = dma_alloc_brk;
-
- if (dma_alloc_brk + len > dma_alloc_end)
- return NULL;
-
- dma_alloc_brk = ((paddr + len + CONFIG_SYS_DCACHE_LINESZ - 1)
- & ~(CONFIG_SYS_DCACHE_LINESZ - 1));
-
- *handle = paddr;
- return uncached(paddr);
-}
-#else
-static inline void dma_alloc_init(void)
-{
-
-}
-#endif
-
-static int init_baudrate(void)
-{
- char tmp[64];
- int i;
-
- i = getenv_r("baudrate", tmp, sizeof(tmp));
- if (i > 0) {
- gd->baudrate = simple_strtoul(tmp, NULL, 10);
- } else {
- gd->baudrate = CONFIG_BAUDRATE;
- }
- return 0;
-}
-
-
-static int display_banner (void)
-{
- printf ("\n\n%s\n\n", version_string);
- printf ("U-Boot code: %p -> %p data: %p -> %p\n",
- _text, _etext, _data, _end);
- return 0;
-}
-
-void hang(void)
-{
- for (;;) ;
-}
-
-static int display_dram_config (void)
-{
- int i;
-
- puts ("DRAM Configuration:\n");
-
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
- printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
- print_size (gd->bd->bi_dram[i].size, "\n");
- }
-
- return 0;
-}
-
-static void display_flash_config (void)
-{
- puts ("Flash: ");
- print_size(gd->bd->bi_flashsize, " ");
- printf("at address 0x%08lx\n", gd->bd->bi_flashstart);
-}
-
-void board_init_f(ulong board_type)
-{
- gd_t gd_data;
- gd_t *new_gd;
- bd_t *bd;
- unsigned long *new_sp;
- unsigned long monitor_len;
- unsigned long monitor_addr;
- unsigned long addr;
- long sdram_size;
-
- /* Initialize the global data pointer */
- memset(&gd_data, 0, sizeof(gd_data));
- gd = &gd_data;
-
- /* Perform initialization sequence */
- board_early_init_f();
- cpu_init();
- board_postclk_init();
- env_init();
- init_baudrate();
- serial_init();
- console_init_f();
- display_banner();
- sdram_size = initdram(board_type);
-
- /* If we have no SDRAM, we can't go on */
- if (sdram_size <= 0)
- panic("No working SDRAM available\n");
-
- /*
- * Now that we have DRAM mapped and working, we can
- * relocate the code and continue running from DRAM.
- *
- * Reserve memory at end of RAM for (top down in that order):
- * - u-boot image
- * - heap for malloc()
- * - board info struct
- * - global data struct
- * - stack
- */
- addr = CONFIG_SYS_SDRAM_BASE + sdram_size;
- monitor_len = _end - _text;
-
- /*
- * Reserve memory for u-boot code, data and bss.
- * Round down to next 4 kB limit.
- */
- addr -= monitor_len;
- addr &= ~(4096UL - 1);
- monitor_addr = addr;
-
- /* Reserve memory for malloc() */
- addr -= CONFIG_SYS_MALLOC_LEN;
-
-#ifdef CONFIG_SYS_DMA_ALLOC_LEN
- /* Reserve DMA memory (must be cache aligned) */
- addr &= ~(CONFIG_SYS_DCACHE_LINESZ - 1);
- addr -= CONFIG_SYS_DMA_ALLOC_LEN;
-#endif
-
-#ifdef CONFIG_LCD
-#ifdef CONFIG_FB_ADDR
- printf("LCD: Frame buffer allocated at preset 0x%08x\n",
- CONFIG_FB_ADDR);
- gd->fb_base = (void *)CONFIG_FB_ADDR;
-#else
- addr = lcd_setmem(addr);
- printf("LCD: Frame buffer allocated at 0x%08lx\n", addr);
- gd->fb_base = (void *)addr;
-#endif /* CONFIG_FB_ADDR */
-#endif /* CONFIG_LCD */
-
- /* Allocate a Board Info struct on a word boundary */
- addr -= sizeof(bd_t);
- addr &= ~3UL;
- gd->bd = bd = (bd_t *)addr;
-
- /* Allocate a new global data copy on a 8-byte boundary. */
- addr -= sizeof(gd_t);
- addr &= ~7UL;
- new_gd = (gd_t *)addr;
-
- /* And finally, a new, bigger stack. */
- new_sp = (unsigned long *)addr;
- gd->stack_end = addr;
- *(--new_sp) = 0;
- *(--new_sp) = 0;
-
- /*
- * Initialize the board information struct with the
- * information we have.
- */
- bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
- bd->bi_dram[0].size = sdram_size;
- bd->bi_baudrate = gd->baudrate;
-
- memcpy(new_gd, gd, sizeof(gd_t));
-
- relocate_code((unsigned long)new_sp, new_gd, monitor_addr);
-}
-
-void board_init_r(gd_t *new_gd, ulong dest_addr)
-{
- extern void malloc_bin_reloc (void);
-#ifndef CONFIG_ENV_IS_NOWHERE
- extern char * env_name_spec;
-#endif
- char *s;
- cmd_tbl_t *cmdtp;
- bd_t *bd;
-
- gd = new_gd;
- bd = gd->bd;
-
- gd->flags |= GD_FLG_RELOC;
- gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
-
- board_early_init_r();
-
- monitor_flash_len = _edata - _text;
-
- /*
- * We have to relocate the command table manually
- */
- for (cmdtp = &__u_boot_cmd_start;
- cmdtp != &__u_boot_cmd_end; cmdtp++) {
- unsigned long addr;
-
- addr = (unsigned long)cmdtp->cmd + gd->reloc_off;
- cmdtp->cmd = (typeof(cmdtp->cmd))addr;
-
- addr = (unsigned long)cmdtp->name + gd->reloc_off;
- cmdtp->name = (typeof(cmdtp->name))addr;
-
- if (cmdtp->usage) {
- addr = (unsigned long)cmdtp->usage + gd->reloc_off;
- cmdtp->usage = (typeof(cmdtp->usage))addr;
- }
-#ifdef CONFIG_SYS_LONGHELP
- if (cmdtp->help) {
- addr = (unsigned long)cmdtp->help + gd->reloc_off;
- cmdtp->help = (typeof(cmdtp->help))addr;
- }
-#endif
- }
-
- /* there are some other pointer constants we must deal with */
-#ifndef CONFIG_ENV_IS_NOWHERE
- env_name_spec += gd->reloc_off;
-#endif
-
- timer_init();
-
- /* The malloc area is right below the monitor image in RAM */
- mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
- CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN);
- malloc_bin_reloc();
- dma_alloc_init();
-
- enable_interrupts();
-
- bd->bi_flashstart = 0;
- bd->bi_flashsize = 0;
- bd->bi_flashoffset = 0;
-
-#ifndef CONFIG_SYS_NO_FLASH
- bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
- bd->bi_flashsize = flash_init();
- bd->bi_flashoffset = (unsigned long)_edata - (unsigned long)_text;
-
- if (bd->bi_flashsize)
- display_flash_config();
-#endif
-
- if (bd->bi_dram[0].size)
- display_dram_config();
-
- gd->bd->bi_boot_params = malloc(CONFIG_SYS_BOOTPARAMS_LEN);
- if (!gd->bd->bi_boot_params)
- puts("WARNING: Cannot allocate space for boot parameters\n");
-
- /* initialize environment */
- env_relocate();
-
- bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
-
- stdio_init();
- jumptable_init();
- console_init_r();
-
- s = getenv("loadaddr");
- if (s)
- load_addr = simple_strtoul(s, NULL, 16);
-
-#ifdef CONFIG_BITBANGMII
- bb_miiphy_init();
-#endif
-#if defined(CONFIG_CMD_NET)
- s = getenv("bootfile");
- if (s)
- copy_filename(BootFile, s, sizeof(BootFile));
-#if defined(CONFIG_NET_MULTI)
- puts("Net: ");
-#endif
- eth_initialize(gd->bd);
-#endif
-
- for (;;) {
- main_loop();
- }
-}
diff --git a/lib_avr32/bootm.c b/lib_avr32/bootm.c
deleted file mode 100644
index 6a3172a..0000000
--- a/lib_avr32/bootm.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * 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 <common.h>
-#include <command.h>
-#include <image.h>
-#include <u-boot/zlib.h>
-#include <asm/byteorder.h>
-#include <asm/arch/addrspace.h>
-#include <asm/io.h>
-#include <asm/setup.h>
-#include <asm/arch/clk.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* CPU-specific hook to allow flushing of caches, etc. */
-extern void prepare_to_boot(void);
-
-static struct tag *setup_start_tag(struct tag *params)
-{
- params->hdr.tag = ATAG_CORE;
- params->hdr.size = tag_size(tag_core);
-
- params->u.core.flags = 0;
- params->u.core.pagesize = 4096;
- params->u.core.rootdev = 0;
-
- return tag_next(params);
-}
-
-static struct tag *setup_memory_tags(struct tag *params)
-{
- bd_t *bd = gd->bd;
- int i;
-
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
- params->hdr.tag = ATAG_MEM;
- params->hdr.size = tag_size(tag_mem_range);
-
- params->u.mem_range.addr = bd->bi_dram[i].start;
- params->u.mem_range.size = bd->bi_dram[i].size;
-
- params = tag_next(params);
- }
-
- return params;
-}
-
-static struct tag *setup_commandline_tag(struct tag *params, char *cmdline)
-{
- if (!cmdline)
- return params;
-
- /* eat leading white space */
- while (*cmdline == ' ') cmdline++;
-
- /*
- * Don't include tags for empty command lines; let the kernel
- * use its default command line.
- */
- if (*cmdline == '\0')
- return params;
-
- params->hdr.tag = ATAG_CMDLINE;
- params->hdr.size =
- (sizeof (struct tag_header) + strlen(cmdline) + 1 + 3) >> 2;
- strcpy(params->u.cmdline.cmdline, cmdline);
-
- return tag_next(params);
-}
-
-static struct tag *setup_ramdisk_tag(struct tag *params,
- unsigned long rd_start,
- unsigned long rd_end)
-{
- if (rd_start == rd_end)
- return params;
-
- params->hdr.tag = ATAG_RDIMG;
- params->hdr.size = tag_size(tag_mem_range);
-
- params->u.mem_range.addr = rd_start;
- params->u.mem_range.size = rd_end - rd_start;
-
- return tag_next(params);
-}
-
-static struct tag *setup_clock_tags(struct tag *params)
-{
- params->hdr.tag = ATAG_CLOCK;
- params->hdr.size = tag_size(tag_clock);
- params->u.clock.clock_id = ACLOCK_BOOTCPU;
- params->u.clock.clock_flags = 0;
- params->u.clock.clock_hz = gd->cpu_hz;
-
-#ifdef CONFIG_AT32AP7000
- /*
- * New kernels don't need this, but we should be backwards
- * compatible for a while...
- */
- params = tag_next(params);
-
- params->hdr.tag = ATAG_CLOCK;
- params->hdr.size = tag_size(tag_clock);
- params->u.clock.clock_id = ACLOCK_HSB;
- params->u.clock.clock_flags = 0;
- params->u.clock.clock_hz = get_hsb_clk_rate();
-#endif
-
- return tag_next(params);
-}
-
-static struct tag *setup_ethernet_tag(struct tag *params,
- char *addr, int index)
-{
- char *s, *e;
- int i;
-
- params->hdr.tag = ATAG_ETHERNET;
- params->hdr.size = tag_size(tag_ethernet);
-
- params->u.ethernet.mac_index = index;
- params->u.ethernet.mii_phy_addr = gd->bd->bi_phy_id[index];
-
- s = addr;
- for (i = 0; i < 6; i++) {
- params->u.ethernet.hw_address[i] = simple_strtoul(s, &e, 16);
- s = e + 1;
- }
-
- return tag_next(params);
-}
-
-static struct tag *setup_ethernet_tags(struct tag *params)
-{
- char name[16] = "ethaddr";
- char *addr;
- int i = 0;
-
- do {
- addr = getenv(name);
- if (addr)
- params = setup_ethernet_tag(params, addr, i);
- sprintf(name, "eth%daddr", ++i);
- } while (i < 4);
-
- return params;
-}
-
-static void setup_end_tag(struct tag *params)
-{
- params->hdr.tag = ATAG_NONE;
- params->hdr.size = 0;
-}
-
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
-{
- void (*theKernel)(int magic, void *tagtable);
- struct tag *params, *params_start;
- char *commandline = getenv("bootargs");
-
- if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
- return 1;
-
- theKernel = (void *)images->ep;
-
- show_boot_progress (15);
-
- params = params_start = (struct tag *)gd->bd->bi_boot_params;
- params = setup_start_tag(params);
- params = setup_memory_tags(params);
- if (images->rd_start) {
- params = setup_ramdisk_tag(params,
- PHYSADDR(images->rd_start),
- PHYSADDR(images->rd_end));
- }
- params = setup_commandline_tag(params, commandline);
- params = setup_clock_tags(params);
- params = setup_ethernet_tags(params);
- setup_end_tag(params);
-
- printf("\nStarting kernel at %p (params at %p)...\n\n",
- theKernel, params_start);
-
- prepare_to_boot();
-
- theKernel(ATAG_MAGIC, params_start);
- /* does not return */
-
- return 1;
-}
diff --git a/lib_avr32/config.mk b/lib_avr32/config.mk
deleted file mode 100644
index 1121ca1..0000000
--- a/lib_avr32/config.mk
+++ /dev/null
@@ -1,29 +0,0 @@
-#
-# (C) Copyright 2000-2002
-# 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
-#
-
-CROSS_COMPILE ?= avr32-linux-
-
-STANDALONE_LOAD_ADDR = 0x00000000
-
-PLATFORM_RELFLAGS += -ffixed-r5 -fPIC -mno-init-got -mrelax
-PLATFORM_LDFLAGS += --relax
diff --git a/lib_avr32/interrupts.c b/lib_avr32/interrupts.c
deleted file mode 100644
index bbbc490..0000000
--- a/lib_avr32/interrupts.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2006 Atmel Corporation
- *
- * 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 <common.h>
-
-#include <asm/sysreg.h>
-
-void enable_interrupts(void)
-{
- asm volatile("csrf %0" : : "n"(SYSREG_GM_OFFSET));
-}
-
-int disable_interrupts(void)
-{
- unsigned long sr;
-
- sr = sysreg_read(SR);
- asm volatile("ssrf %0" : : "n"(SYSREG_GM_OFFSET));
-
-#ifdef CONFIG_AT32UC3A0xxx
- /* Two NOPs are required after masking interrupts on the
- * AT32UC3A0512ES. See errata 41.4.5.5. */
- asm("nop");
- asm("nop");
-#endif
-
- return !SYSREG_BFEXT(GM, sr);
-}
diff --git a/lib_avr32/memset.S b/lib_avr32/memset.S
deleted file mode 100644
index 79e3c67..0000000
--- a/lib_avr32/memset.S
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * 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
- */
-
- /*
- * r12: void *b
- * r11: int c
- * r10: size_t len
- *
- * Returns b in r12
- */
- .section .text.memset, "ax", @progbits
-
- .global memset
- .type memset, @function
- .align 2
-memset:
- mov r9, r12
- mov r8, r12
- or r11, r11, r11 << 8
- andl r9, 3, COH
- brne 1f
-
-2: or r11, r11, r11 << 16
- sub r10, 4
- brlt 5f
-
- /* Let's do some real work */
-4: st.w r8++, r11
- sub r10, 4
- brge 4b
-
- /*
- * When we get here, we've got less than 4 bytes to set. r10
- * might be negative.
- */
-5: sub r10, -4
- reteq r12
-
- /* Fastpath ends here, exactly 32 bytes from memset */
-
- /* Handle unaligned count or pointer */
- bld r10, 1
- brcc 6f
- st.b r8++, r11
- st.b r8++, r11
- bld r10, 0
- retcc r12
-6: st.b r8++, r11
- mov pc, lr
-
- /* Handle unaligned pointer */
-1: sub r10, 4
- brlt 5b
- add r10, r9
- lsl r9, 1
- add pc, r9
- st.b r8++, r11
- st.b r8++, r11
- st.b r8++, r11
- rjmp 2b
-
- .size memset, . - memset