Turns on the LED on MIO7 on the Zedboard to have a signal
Signed-off-by: Michael Graichen <michael.graic...@hotmail.com>
---
arch/arm/boards/avnet-zedboard/lowlevel.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/boards/avnet-zedboard/lowlevel.c
b/arch/arm/boards/avnet-zedboard/lowlevel.c
index b8001fcf6..eb85df507 100644
--- a/arch/arm/boards/avnet-zedboard/lowlevel.c
+++ b/arch/arm/boards/avnet-zedboard/lowlevel.c
@@ -306,6 +306,16 @@ ENTRY_FUNCTION(start_avnet_zedboard, r0, r1, r2)
void *fdt = __dtb_zynq_zed_start + get_runtime_offset();
+ /* MIO_07 in GPIO Mode 3.3V VIO, can be uncomented because it is the
default value */
+ writel(0x0000DF0D, ZYNQ_SLCR_UNLOCK);
+ writel(0x00000600, 0xF800071C );
+ writel(0x0000767B, ZYNQ_SLCR_LOCK);
+
+ /* turns on the LED MIO_07 */
+ writel((1<<7), 0xe000a204 ); // Direction
+ writel((1<<7), 0xe000a208 ); // Output enable
+ writel((1<<7), 0xe000a040 ); // DATA Register
+
arm_cpu_lowlevel_init();
zynq_cpu_lowlevel_init();
--
2.17.1
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