Messages in this thread Patch in this message |  | | From | Jean-Jacques Hiblot <> | Subject | [PATCH v4 1/8] at91: dt: Adds support for the bus matrix declaration in the DT | Date | Wed, 12 Feb 2014 11:06:40 +0100 |
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Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com> --- arch/arm/mach-at91/setup.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index f7ca97b..b8d0b66 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -487,6 +487,28 @@ end: of_node_put(np); } +static struct of_device_id matrix_ids[] = { + { .compatible = "atmel,at91sam9261-bus-matrix", }, + { /*sentinel*/ } +}; + +static void at91_dt_matrix(void) +{ + struct device_node *np; + + np = of_find_matching_node(NULL, matrix_ids); + if (!np) { + pr_debug("AT91: unable to find compatible bus matrix controller node in dtb\n"); + return; + } + + at91_matrix_base = of_iomap(np, 0); + if (!at91_matrix_base) + panic("Impossible to ioremap at91_matrix_base\n"); + + of_node_put(np); +} + void __init at91rm9200_dt_initialize(void) { at91_dt_ramc(); @@ -506,6 +528,7 @@ void __init at91_dt_initialize(void) at91_dt_rstc(); at91_dt_ramc(); at91_dt_shdwc(); + at91_dt_matrix(); /* Init clock subsystem */ at91_dt_clock_init(); -- 1.8.5.3
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