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| author | Michael Graichen <michael.graichen@hotmail.com> | 2020-04-09 14:42:48 +0000 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-04-14 10:14:25 +0200 |
| commit | fd3728a4a94e1eac7c690cf82c0c6cb9fdaf3b76 (patch) | |
| tree | 46e9292f201de99d3a80e2fc608cae8a3cd5bc4b | |
| parent | a959620613daf0605c7dd4116174be47ecdfa1da (diff) | |
| download | barebox-fd3728a4a94e1eac7c690cf82c0c6cb9fdaf3b76.tar.gz barebox-fd3728a4a94e1eac7c690cf82c0c6cb9fdaf3b76.tar.xz | |
arm: avnet zedboard: turn on mio7 led on startup
Turns on the LED on MIO7 on the Zedboard to have a signal
Signed-off-by: Michael Graichen <michael.graichen@hotmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | arch/arm/boards/avnet-zedboard/lowlevel.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/boards/avnet-zedboard/lowlevel.c b/arch/arm/boards/avnet-zedboard/lowlevel.c index b8001fcf6b..eb85df507a 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(); |