diff options
Diffstat (limited to 'arch/microblaze')
-rw-r--r-- | arch/microblaze/cpu/interrupts.c | 26 | ||||
-rw-r--r-- | arch/microblaze/cpu/timer.c | 39 |
2 files changed, 53 insertions, 12 deletions
diff --git a/arch/microblaze/cpu/interrupts.c b/arch/microblaze/cpu/interrupts.c index b6d6610f2f..010ca4a02c 100644 --- a/arch/microblaze/cpu/interrupts.c +++ b/arch/microblaze/cpu/interrupts.c @@ -10,10 +10,13 @@ #include <common.h> #include <command.h> +#include <fdtdec.h> #include <malloc.h> #include <asm/microblaze_intc.h> #include <asm/asm.h> +DECLARE_GLOBAL_DATA_PTR; + void enable_interrupts(void) { debug("Enable interrupts for the whole CPU\n"); @@ -112,11 +115,26 @@ static void intc_init(void) int interrupt_init(void) { int i; + const void *blob = gd->fdt_blob; + int node = 0; + + debug("INTC: Initialization\n"); + + node = fdt_node_offset_by_compatible(blob, node, + "xlnx,xps-intc-1.00.a"); + if (node != -1) { + fdt_addr_t base = fdtdec_get_addr(blob, node, "reg"); + if (base == FDT_ADDR_T_NONE) + return -1; + + debug("INTC: Base addr %lx\n", base); + intc = (microblaze_intc_t *)base; + irq_no = fdtdec_get_int(blob, node, "xlnx,num-intr-inputs", 0); + debug("INTC: IRQ NO %x\n", irq_no); + } else { + return node; + } -#if defined(CONFIG_SYS_INTC_0_ADDR) && defined(CONFIG_SYS_INTC_0_NUM) - intc = (microblaze_intc_t *)CONFIG_SYS_INTC_0_ADDR; - irq_no = CONFIG_SYS_INTC_0_NUM; -#endif if (irq_no) { vecs = calloc(1, sizeof(struct irq_action) * irq_no); if (vecs == NULL) { diff --git a/arch/microblaze/cpu/timer.c b/arch/microblaze/cpu/timer.c index 3960bbb08a..8845e07d0e 100644 --- a/arch/microblaze/cpu/timer.c +++ b/arch/microblaze/cpu/timer.c @@ -7,9 +7,12 @@ */ #include <common.h> +#include <fdtdec.h> #include <asm/microblaze_timer.h> #include <asm/microblaze_intc.h> +DECLARE_GLOBAL_DATA_PTR; + volatile int timestamp = 0; microblaze_timer_t *tmr; @@ -28,9 +31,6 @@ void __udelay(unsigned long usec) i = get_timer(0); while ((get_timer(0) - i) < (usec / 1000)) ; - } else { - for (i = 0; i < (usec * XILINX_CLOCK_FREQ / 10000000); i++) - ; } } @@ -46,12 +46,35 @@ int timer_init (void) int irq = -1; u32 preload = 0; u32 ret = 0; + const void *blob = gd->fdt_blob; + int node = 0; + u32 cell[2]; -#if defined(CONFIG_SYS_TIMER_0_ADDR) && defined(CONFIG_SYS_INTC_0_NUM) - preload = XILINX_CLOCK_FREQ / CONFIG_SYS_HZ; - irq = CONFIG_SYS_TIMER_0_IRQ; - tmr = (microblaze_timer_t *) (CONFIG_SYS_TIMER_0_ADDR); -#endif + debug("TIMER: Initialization\n"); + + node = fdt_node_offset_by_compatible(blob, node, + "xlnx,xps-timer-1.00.a"); + if (node != -1) { + fdt_addr_t base = fdtdec_get_addr(blob, node, "reg"); + if (base == FDT_ADDR_T_NONE) + return -1; + + debug("TIMER: Base addr %lx\n", base); + tmr = (microblaze_timer_t *)base; + + ret = fdtdec_get_int_array(blob, node, "interrupts", + cell, ARRAY_SIZE(cell)); + if (ret) + return ret; + + irq = cell[0]; + debug("TIMER: IRQ %x\n", irq); + + preload = fdtdec_get_int(blob, node, "clock-frequency", 0); + preload /= CONFIG_SYS_HZ; + } else { + return node; + } if (tmr && preload && irq >= 0) { tmr->loadreg = preload; |