#include <asm/cacheflush.h>
#include <asm/blackfin.h>
#include <asm/cplbinit.h>
+#include <asm/fixed_code.h>
u16 _bfin_swrst;
EXPORT_SYMBOL(mtd_size);
#endif
-char command_line[COMMAND_LINE_SIZE];
-
-#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE)
-static void generate_cpl_tables(void);
-#endif
+char __initdata command_line[COMMAND_LINE_SIZE];
void __init bf53x_cache_init(void)
{
#endif
}
-void bf53x_relocate_l1_mem(void)
+void __init bf53x_relocate_l1_mem(void)
{
unsigned long l1_code_length;
unsigned long l1_data_a_length;
/* this give a chance to get printk() working before crash. */
#endif
+ printk(KERN_INFO "Hardware Trace ");
+ if (bfin_read_TBUFCTL() & 0x1 )
+ printk("Active ");
+ else
+ printk("Off ");
+ if (bfin_read_TBUFCTL() & 0x2)
+ printk("and Enabled\n");
+ else
+ printk("and Disabled\n");
+
+
#if defined(CONFIG_CHR_DEV_FLASH) || defined(CONFIG_BLK_DEV_FLASH)
/* we need to initialize the Flashrom device here since we might
* do things with flash early on in the boot
#endif
#if defined(CONFIG_CMDLINE_BOOL)
- memset(command_line, 0, sizeof(command_line));
strncpy(&command_line[0], CONFIG_CMDLINE, sizeof(command_line));
command_line[sizeof(command_line) - 1] = 0;
#endif
/* Keep a copy of command line */
*cmdline_p = &command_line[0];
memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
- boot_command_line[COMMAND_LINE_SIZE - 1] = 0;
+ boot_command_line[COMMAND_LINE_SIZE - 1] = '\0';
/* setup memory defaults from the user config */
physical_mem_end = 0;
init_leds();
printk(KERN_INFO "Blackfin support (C) 2004-2007 Analog Devices, Inc.\n");
- printk(KERN_INFO "Compiled for ADSP-%s Rev 0.%d\n", CPU, bfin_compiled_revid());
- if (bfin_revid() != bfin_compiled_revid())
- printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n",
- bfin_compiled_revid(), bfin_revid());
+ if (bfin_compiled_revid() == 0xffff)
+ printk(KERN_INFO "Compiled for ADSP-%s Rev any\n", CPU);
+ else if (bfin_compiled_revid() == -1)
+ printk(KERN_INFO "Compiled for ADSP-%s Rev none\n", CPU);
+ else
+ printk(KERN_INFO "Compiled for ADSP-%s Rev 0.%d\n", CPU, bfin_compiled_revid());
+ if (bfin_revid() != bfin_compiled_revid()) {
+ if (bfin_compiled_revid() == -1)
+ printk(KERN_ERR "Warning: Compiled for Rev none, but running on Rev %d\n",
+ bfin_revid());
+ else if (bfin_compiled_revid() != 0xffff)
+ printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n",
+ bfin_compiled_revid(), bfin_revid());
+ }
if (bfin_revid() < SUPPORTED_REVID)
printk(KERN_ERR "Warning: Unsupported Chip Revision ADSP-%s Rev 0.%d detected\n",
CPU, bfin_revid());
printk(KERN_INFO "Memory map:\n"
KERN_INFO " text = 0x%p-0x%p\n"
- KERN_INFO " init = 0x%p-0x%p\n"
+ KERN_INFO " rodata = 0x%p-0x%p\n"
KERN_INFO " data = 0x%p-0x%p\n"
- KERN_INFO " stack = 0x%p-0x%p\n"
+ KERN_INFO " stack = 0x%p-0x%p\n"
+ KERN_INFO " init = 0x%p-0x%p\n"
KERN_INFO " bss = 0x%p-0x%p\n"
KERN_INFO " available = 0x%p-0x%p\n"
#ifdef CONFIG_MTD_UCLINUX
KERN_INFO " DMA Zone = 0x%p-0x%p\n"
#endif
, _stext, _etext,
- __init_begin, __init_end,
+ __start_rodata, __end_rodata,
_sdata, _edata,
- (void*)&init_thread_union, (void*)((int)(&init_thread_union) + 0x2000),
+ (void *)&init_thread_union, (void *)((int)(&init_thread_union) + 0x2000),
+ __init_begin, __init_end,
__bss_start, __bss_stop,
- (void*)_ramstart, (void*)memory_end
+ (void *)_ramstart, (void *)memory_end
#ifdef CONFIG_MTD_UCLINUX
- , (void*)memory_mtd_start, (void*)(memory_mtd_start + mtd_size)
+ , (void *)memory_mtd_start, (void *)(memory_mtd_start + mtd_size)
#endif
#if DMA_UNCACHED_REGION > 0
- , (void*)(_ramend - DMA_UNCACHED_REGION), (void*)(_ramend)
+ , (void *)(_ramend - DMA_UNCACHED_REGION), (void *)(_ramend)
#endif
);
/* check the size of the l1 area */
l1_length = _etext_l1 - _stext_l1;
if (l1_length > L1_CODE_LENGTH)
- panic("L1 memory overflow\n");
+ panic("L1 code memory overflow\n");
l1_length = _ebss_l1 - _sdata_l1;
if (l1_length > L1_DATA_A_LENGTH)
- panic("L1 memory overflow\n");
+ panic("L1 data memory overflow\n");
#ifdef BF561_FAMILY
_bfin_swrst = bfin_read_SICA_SWRST();
_bfin_swrst = bfin_read_SWRST();
#endif
- bf53x_cache_init();
+ /* Copy atomic sequences to their fixed location, and sanity check that
+ these locations are the ones that we advertise to userspace. */
+ memcpy((void *)FIXED_CODE_START, &fixed_code_start,
+ FIXED_CODE_END - FIXED_CODE_START);
+ BUG_ON((char *)&sigreturn_stub - (char *)&fixed_code_start
+ != SIGRETURN_STUB - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_xchg32 - (char *)&fixed_code_start
+ != ATOMIC_XCHG32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_cas32 - (char *)&fixed_code_start
+ != ATOMIC_CAS32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_add32 - (char *)&fixed_code_start
+ != ATOMIC_ADD32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_sub32 - (char *)&fixed_code_start
+ != ATOMIC_SUB32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_ior32 - (char *)&fixed_code_start
+ != ATOMIC_IOR32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_and32 - (char *)&fixed_code_start
+ != ATOMIC_AND32 - FIXED_CODE_START);
+ BUG_ON((char *)&atomic_xor32 - (char *)&fixed_code_start
+ != ATOMIC_XOR32 - FIXED_CODE_START);
- printk(KERN_INFO "Hardware Trace Enabled\n");
- bfin_write_TBUFCTL(0x03);
+ bf53x_cache_init();
}
static int __init topology_init(void)
subsys_initcall(topology_init);
-#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE)
-u16 lock_kernel_check(u32 start, u32 end)
-{
- if ((start <= (u32) _stext && end >= (u32) _end)
- || (start >= (u32) _stext && end <= (u32) _end))
- return IN_KERNEL;
- return 0;
-}
-
-static unsigned short __init
-fill_cplbtab(struct cplb_tab *table,
- unsigned long start, unsigned long end,
- unsigned long block_size, unsigned long cplb_data)
-{
- int i;
-
- switch (block_size) {
- case SIZE_4M:
- i = 3;
- break;
- case SIZE_1M:
- i = 2;
- break;
- case SIZE_4K:
- i = 1;
- break;
- case SIZE_1K:
- default:
- i = 0;
- break;
- }
-
- cplb_data = (cplb_data & ~(3 << 16)) | (i << 16);
-
- while ((start < end) && (table->pos < table->size)) {
-
- table->tab[table->pos++] = start;
-
- if (lock_kernel_check(start, start + block_size) == IN_KERNEL)
- table->tab[table->pos++] =
- cplb_data | CPLB_LOCK | CPLB_DIRTY;
- else
- table->tab[table->pos++] = cplb_data;
-
- start += block_size;
- }
- return 0;
-}
-
-static unsigned short __init
-close_cplbtab(struct cplb_tab *table)
-{
-
- while (table->pos < table->size) {
-
- table->tab[table->pos++] = 0;
- table->tab[table->pos++] = 0; /* !CPLB_VALID */
- }
- return 0;
-}
-
-static void __init generate_cpl_tables(void)
-{
-
- u16 i, j, process;
- u32 a_start, a_end, as, ae, as_1m;
-
- struct cplb_tab *t_i = NULL;
- struct cplb_tab *t_d = NULL;
- struct s_cplb cplb;
-
- cplb.init_i.size = MAX_CPLBS;
- cplb.init_d.size = MAX_CPLBS;
- cplb.switch_i.size = MAX_SWITCH_I_CPLBS;
- cplb.switch_d.size = MAX_SWITCH_D_CPLBS;
-
- cplb.init_i.pos = 0;
- cplb.init_d.pos = 0;
- cplb.switch_i.pos = 0;
- cplb.switch_d.pos = 0;
-
- cplb.init_i.tab = icplb_table;
- cplb.init_d.tab = dcplb_table;
- cplb.switch_i.tab = ipdt_table;
- cplb.switch_d.tab = dpdt_table;
-
- cplb_data[SDRAM_KERN].end = memory_end;
-
-#ifdef CONFIG_MTD_UCLINUX
- cplb_data[SDRAM_RAM_MTD].start = memory_mtd_start;
- cplb_data[SDRAM_RAM_MTD].end = memory_mtd_start + mtd_size;
- cplb_data[SDRAM_RAM_MTD].valid = mtd_size > 0;
-# if defined(CONFIG_ROMFS_FS)
- cplb_data[SDRAM_RAM_MTD].attr |= I_CPLB;
-
- /*
- * The ROMFS_FS size is often not multiple of 1MB.
- * This can cause multiple CPLB sets covering the same memory area.
- * This will then cause multiple CPLB hit exceptions.
- * Workaround: We ensure a contiguous memory area by extending the kernel
- * memory section over the mtd section.
- * For ROMFS_FS memory must be covered with ICPLBs anyways.
- * So there is no difference between kernel and mtd memory setup.
- */
-
- cplb_data[SDRAM_KERN].end = memory_mtd_start + mtd_size;;
- cplb_data[SDRAM_RAM_MTD].valid = 0;
-
-# endif
-#else
- cplb_data[SDRAM_RAM_MTD].valid = 0;
-#endif
-
- cplb_data[SDRAM_DMAZ].start = _ramend - DMA_UNCACHED_REGION;
- cplb_data[SDRAM_DMAZ].end = _ramend;
-
- cplb_data[RES_MEM].start = _ramend;
- cplb_data[RES_MEM].end = physical_mem_end;
-
- if (reserved_mem_dcache_on)
- cplb_data[RES_MEM].d_conf = SDRAM_DGENERIC;
- else
- cplb_data[RES_MEM].d_conf = SDRAM_DNON_CHBL;
-
- if (reserved_mem_icache_on)
- cplb_data[RES_MEM].i_conf = SDRAM_IGENERIC;
- else
- cplb_data[RES_MEM].i_conf = SDRAM_INON_CHBL;
-
- for (i = ZERO_P; i <= L2_MEM; i++) {
-
- if (cplb_data[i].valid) {
-
- as_1m = cplb_data[i].start % SIZE_1M;
-
- /* We need to make sure all sections are properly 1M aligned
- * However between Kernel Memory and the Kernel mtd section, depending on the
- * rootfs size, there can be overlapping memory areas.
- */
-
- if (as_1m && i!=L1I_MEM && i!=L1D_MEM) {
-#ifdef CONFIG_MTD_UCLINUX
- if (i == SDRAM_RAM_MTD) {
- if ((cplb_data[SDRAM_KERN].end + 1) > cplb_data[SDRAM_RAM_MTD].start)
- cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M)) + SIZE_1M;
- else
- cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M));
- } else
-#endif
- printk(KERN_WARNING "Unaligned Start of %s at 0x%X\n",
- cplb_data[i].name, cplb_data[i].start);
- }
-
- as = cplb_data[i].start % SIZE_4M;
- ae = cplb_data[i].end % SIZE_4M;
-
- if (as)
- a_start = cplb_data[i].start + (SIZE_4M - (as));
- else
- a_start = cplb_data[i].start;
-
- a_end = cplb_data[i].end - ae;
-
- for (j = INITIAL_T; j <= SWITCH_T; j++) {
-
- switch (j) {
- case INITIAL_T:
- if (cplb_data[i].attr & INITIAL_T) {
- t_i = &cplb.init_i;
- t_d = &cplb.init_d;
- process = 1;
- } else
- process = 0;
- break;
- case SWITCH_T:
- if (cplb_data[i].attr & SWITCH_T) {
- t_i = &cplb.switch_i;
- t_d = &cplb.switch_d;
- process = 1;
- } else
- process = 0;
- break;
- default:
- process = 0;
- break;
- }
-
- if (process) {
- if (cplb_data[i].attr & I_CPLB) {
-
- if (cplb_data[i].psize) {
- fill_cplbtab(t_i,
- cplb_data[i].start,
- cplb_data[i].end,
- cplb_data[i].psize,
- cplb_data[i].i_conf);
- } else {
- /*icplb_table */
-#if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263))
- if (i == SDRAM_KERN) {
- fill_cplbtab(t_i,
- cplb_data[i].start,
- cplb_data[i].end,
- SIZE_4M,
- cplb_data[i].i_conf);
- } else
-#endif
- {
- fill_cplbtab(t_i,
- cplb_data[i].start,
- a_start,
- SIZE_1M,
- cplb_data[i].i_conf);
- fill_cplbtab(t_i,
- a_start,
- a_end,
- SIZE_4M,
- cplb_data[i].i_conf);
- fill_cplbtab(t_i, a_end,
- cplb_data[i].end,
- SIZE_1M,
- cplb_data[i].i_conf);
- }
- }
-
- }
- if (cplb_data[i].attr & D_CPLB) {
-
- if (cplb_data[i].psize) {
- fill_cplbtab(t_d,
- cplb_data[i].start,
- cplb_data[i].end,
- cplb_data[i].psize,
- cplb_data[i].d_conf);
- } else {
-/*dcplb_table*/
- fill_cplbtab(t_d,
- cplb_data[i].start,
- a_start, SIZE_1M,
- cplb_data[i].d_conf);
- fill_cplbtab(t_d, a_start,
- a_end, SIZE_4M,
- cplb_data[i].d_conf);
- fill_cplbtab(t_d, a_end,
- cplb_data[i].end,
- SIZE_1M,
- cplb_data[i].d_conf);
-
- }
-
- }
- }
- }
-
- }
- }
-
-/* close tables */
-
- close_cplbtab(&cplb.init_i);
- close_cplbtab(&cplb.init_d);
-
- cplb.init_i.tab[cplb.init_i.pos] = -1;
- cplb.init_d.tab[cplb.init_d.pos] = -1;
- cplb.switch_i.tab[cplb.switch_i.pos] = -1;
- cplb.switch_d.tab[cplb.switch_d.pos] = -1;
-
-}
-
-#endif
-
-static inline u_long get_vco(void)
+static u_long get_vco(void)
{
u_long msel;
u_long vco;
return get_vco() / ssel;
return get_vco() >> csel;
}
-
EXPORT_SYMBOL(get_cclk);
/* Get the System clock */
return get_vco() / ssel;
}
-
EXPORT_SYMBOL(get_sclk);
/*
seq_printf(m, "D-CACHE:\tOFF\n");
- switch(bfin_read_DMEM_CONTROL() & (1 << DMC0_P | 1 << DMC1_P)) {
- case ACACHE_BSRAM:
- seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tSRAM\n");
- dcache_size = 16;
- dsup_banks = 1;
- break;
- case ACACHE_BCACHE:
- seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tCACHE\n");
- dcache_size = 32;
- dsup_banks = 2;
- break;
- case ASRAM_BSRAM:
- seq_printf(m, "DBANK-A:\tSRAM\n" "DBANK-B:\tSRAM\n");
- dcache_size = 0;
- dsup_banks = 0;
- break;
- default:
+ switch (bfin_read_DMEM_CONTROL() & (1 << DMC0_P | 1 << DMC1_P)) {
+ case ACACHE_BSRAM:
+ seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tSRAM\n");
+ dcache_size = 16;
+ dsup_banks = 1;
+ break;
+ case ACACHE_BCACHE:
+ seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tCACHE\n");
+ dcache_size = 32;
+ dsup_banks = 2;
+ break;
+ case ASRAM_BSRAM:
+ seq_printf(m, "DBANK-A:\tSRAM\n" "DBANK-B:\tSRAM\n");
+ dcache_size = 0;
+ dsup_banks = 0;
+ break;
+ default:
break;
}
.show = show_cpuinfo,
};
-void cmdline_init(unsigned long r0)
+void __init cmdline_init(const char *r0)
{
if (r0)
- strncpy(command_line, (char *)r0, COMMAND_LINE_SIZE);
+ strncpy(command_line, r0, COMMAND_LINE_SIZE);
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff