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| author | Michal Simek <michal.simek@xilinx.com> | 2016-02-15 12:10:32 +0100 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2016-04-04 20:28:38 +0200 |
| commit | 9aa65cab73e4873f3e94c6df3d0efd99f3bc9926 (patch) | |
| tree | cd690f73796fa5356b86769cb695524732e538d0 /arch/microblaze/cpu/interrupts.c | |
| parent | 66de226f9fd2604b42751b6c68e8e33bceb7da9c (diff) | |
| download | blackbird-obmc-uboot-9aa65cab73e4873f3e94c6df3d0efd99f3bc9926.tar.gz blackbird-obmc-uboot-9aa65cab73e4873f3e94c6df3d0efd99f3bc9926.zip | |
microblaze: Read information about timer/interrupts from DT
Read information about timer and interrupts from DT. This is the first
small step to move timer and intc to DM.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/microblaze/cpu/interrupts.c')
| -rw-r--r-- | arch/microblaze/cpu/interrupts.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/microblaze/cpu/interrupts.c b/arch/microblaze/cpu/interrupts.c index b6d6610f2f..e5d8894f54 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"); @@ -113,10 +116,32 @@ int interrupt_init(void) { int i; +#ifdef CONFIG_OF_CONTROL + 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; + } +#else #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 +#endif if (irq_no) { vecs = calloc(1, sizeof(struct irq_action) * irq_no); if (vecs == NULL) { |
