add defines for Colibri standard SPI

The Colibri standard SPI is connected to the SoCs ECSPI3 instance. Add
defines as BOARD_ECSPI_... Also add board level pinmux and clock
readout support.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/examples/imx7_colibri_m4/clock_freq.c b/examples/imx7_colibri_m4/clock_freq.c
index 3c5715b..a60b4ce 100644
--- a/examples/imx7_colibri_m4/clock_freq.c
+++ b/examples/imx7_colibri_m4/clock_freq.c
@@ -95,6 +95,10 @@ uint32_t get_ecspi_clock_freq(ECSPI_Type* base)
             root = CCM_GetRootMux(CCM, ccmRootEcspi2);
             CCM_GetRootDivider(CCM, ccmRootEcspi2, &pre, &post);
             break;
+        case ECSPI3_BASE:
+            root = CCM_GetRootMux(CCM, ccmRootEcspi3);
+            CCM_GetRootDivider(CCM, ccmRootEcspi3, &pre, &post);
+            break;
         default:
             return 0;
     }