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Diffstat (limited to 'arch/blackfin/kernel/setup.c')
-rw-r--r--arch/blackfin/kernel/setup.c33
1 files changed, 24 insertions, 9 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 23e637eb78d..7a82d10b4eb 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -52,6 +52,7 @@ EXPORT_SYMBOL(mtd_size);
#endif
char __initdata command_line[COMMAND_LINE_SIZE];
+unsigned int __initdata *__retx;
/* boot memmap, for parsing "memmap=" */
#define BFIN_MEMMAP_MAX 128 /* number of entries in bfin_memmap */
@@ -131,14 +132,14 @@ void __init bf53x_relocate_l1_mem(void)
dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length +
l1_data_a_length, l1_data_b_length);
-#ifdef L2_LENGTH
- l2_length = _ebss_l2 - _stext_l2;
- if (l2_length > L2_LENGTH)
- panic("L2 SRAM Overflow\n");
+ if (L2_LENGTH != 0) {
+ l2_length = _ebss_l2 - _stext_l2;
+ if (l2_length > L2_LENGTH)
+ panic("L2 SRAM Overflow\n");
- /* Copy _stext_l2 to _edata_l2 to L2 SRAM */
- dma_memcpy(_stext_l2, _l2_lma_start, l2_length);
-#endif
+ /* Copy _stext_l2 to _edata_l2 to L2 SRAM */
+ dma_memcpy(_stext_l2, _l2_lma_start, l2_length);
+ }
}
/* add_memory_region to memmap */
@@ -738,6 +739,16 @@ void __init setup_arch(char **cmdline_p)
memory_setup();
+ /* Initialize Async memory banks */
+ bfin_write_EBIU_AMBCTL0(AMBCTL0VAL);
+ bfin_write_EBIU_AMBCTL1(AMBCTL1VAL);
+ bfin_write_EBIU_AMGCTL(AMGCTLVAL);
+#ifdef CONFIG_EBIU_MBSCTLVAL
+ bfin_write_EBIU_MBSCTL(CONFIG_EBIU_MBSCTLVAL);
+ bfin_write_EBIU_MODE(CONFIG_EBIU_MODEVAL);
+ bfin_write_EBIU_FCTL(CONFIG_EBIU_FCTLVAL);
+#endif
+
cclk = get_cclk();
sclk = get_sclk();
@@ -775,7 +786,11 @@ void __init setup_arch(char **cmdline_p)
bfin_write_SWRST(DOUBLE_FAULT);
if (_bfin_swrst & RESET_DOUBLE)
- printk(KERN_INFO "Recovering from Double Fault event\n");
+ /*
+ * don't decode the address, since you don't know if this
+ * kernel's symbol map is the same as the crashing kernel
+ */
+ printk(KERN_INFO "Recovering from Double Fault event at %pF\n", __retx);
else if (_bfin_swrst & RESET_WDOG)
printk(KERN_INFO "Recovering from Watchdog event\n");
else if (_bfin_swrst & RESET_SOFTWARE)
@@ -1049,7 +1064,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
dsup_banks, BFIN_DSUBBANKS, BFIN_DWAYS,
BFIN_DLINES);
#ifdef CONFIG_BFIN_ICACHE_LOCK
- switch (read_iloc()) {
+ switch ((bfin_read_IMEM_CONTROL() >> 3) & WAYALL_L) {
case WAY0_L:
seq_printf(m, "Way0 Locked-Down\n");
break;