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authorRajeshwari Shinde <rajeshwari.s@samsung.com>2012-12-26 20:03:11 +0000
committerMinkyu Kang <mk7.kang@samsung.com>2013-01-08 10:54:32 +0900
commitd055911887583e36e550900506c80fbd73c89a58 (patch)
treef199a616d70d105944d0a195c82e6d1dbc3f1d98 /arch/arm/cpu/armv7
parentc34253d1fc83e4cf231af77c667827a51c3f28cb (diff)
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EXYNOS5: FDT : Decode peripheral id
Api is added to decode peripheral id based on the interrupt number of the peripheral. Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'arch/arm/cpu/armv7')
-rw-r--r--arch/arm/cpu/armv7/exynos/pinmux.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c
index ee58dac..bd499b4 100644
--- a/arch/arm/cpu/armv7/exynos/pinmux.c
+++ b/arch/arm/cpu/armv7/exynos/pinmux.c
@@ -22,6 +22,7 @@
*/
#include <common.h>
+#include <fdtdec.h>
#include <asm/arch/gpio.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/sromc.h>
@@ -447,3 +448,31 @@ int exynos_pinmux_config(int peripheral, int flags)
return -1;
}
}
+
+#ifdef CONFIG_OF_CONTROL
+static int exynos5_pinmux_decode_periph_id(const void *blob, int node)
+{
+ int err;
+ u32 cell[3];
+
+ err = fdtdec_get_int_array(blob, node, "interrupts", cell,
+ ARRAY_SIZE(cell));
+ if (err)
+ return PERIPH_ID_NONE;
+
+ /* check for invalid peripheral id */
+ if ((PERIPH_ID_SDMMC4 > cell[1]) || (cell[1] < PERIPH_ID_UART0))
+ return cell[1];
+
+ debug(" invalid peripheral id\n");
+ return PERIPH_ID_NONE;
+}
+
+int pinmux_decode_periph_id(const void *blob, int node)
+{
+ if (cpu_is_exynos5())
+ return exynos5_pinmux_decode_periph_id(blob, node);
+ else
+ return PERIPH_ID_NONE;
+}
+#endif