Hi Michal,
Am Montag, den 09.07.2012, 11:20 +0200 schrieb Michal Simek:
> Read configuration from DTB.
>
> Signed-off-by: Michal Simek <mon...@monstr.eu>
> ---
> arch/microblaze/cpu/timer.c | 25 +++++++++++++++++++++++++
> 1 files changed, 25 insertions(+), 0 deletions(-)
>
> diff --git a/arch/microblaze/cpu/timer.c b/arch/microblaze/cpu/timer.c
> index dfaaaf5..91ca42b 100644
> --- a/arch/microblaze/cpu/timer.c
> +++ b/arch/microblaze/cpu/timer.c
> @@ -25,6 +25,9 @@
> #include <common.h>
> #include <asm/microblaze_timer.h>
> #include <asm/microblaze_intc.h>
> +#include <fdtdec.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
>
> volatile int timestamp = 0;
> microblaze_timer_t *tmr;
> @@ -62,11 +65,33 @@ int timer_init (void)
> u32 preload = 0;
> u32 ret = 0;
>
> +#ifndef CONFIG_OF_CONTROL
> #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
> +#else
> + int temp;
> + int offset = 0;
> +
> + offset = fdt_node_offset_by_compatible(gd->fdt_blob, offset,
> + "xlnx,xps-timer-1.00.a");
> + if (offset > 0) {
> + temp = fdtdec_get_addr(gd->fdt_blob, offset, "reg");
> + if (temp != FDT_ADDR_T_NONE) {
> + tmr = (microblaze_timer_t *)temp;
> + irq = fdtdec_get_int(gd->fdt_blob, offset,
> + "interrupts", -1);
> + if (irq == -1)
irq is u32 (unsigned) -- my be a problem. But yes, I'm missing a
compilation warning here ...
br,
Stephan
> + panic("Connect IRQ to system timer\n");
> + /* Set default clock frequency */
> + temp = fdtdec_get_int(gd->fdt_blob, offset,
> + "clock-frequency", 0);
> + preload = temp / CONFIG_SYS_HZ;
> + }
> + }
> +#endif
>
> if (tmr && irq && preload) {
> tmr->loadreg = preload;
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