tests: Update UART and SPI tests to work on Alif boards.

Signed-off-by: Damien George <damien@micropython.org>

tests/extmod/machine_spi_rate.py

@@ -13,7 +13,10 @@ MAX_DELTA_MS = 8
 
 # Configure pins based on the port/board details.
 # Values are tuples of (spi_id, sck, mosi, miso)
-if "pyboard" in sys.platform:
+if "alif" in sys.platform:
+    MAX_DELTA_MS = 20
+    spi_instances = ((0, None, None, None),)
+elif "pyboard" in sys.platform:
     spi_instances = (
         (1, None, None, None),  # "explicit choice of sck/mosi/miso is not implemented"
         (2, None, None, None),

tests/extmod/machine_uart_irq_txidle.py

@@ -12,7 +12,10 @@ except (ImportError, AttributeError):
 import time, sys
 
 # Configure pins based on the target.
-if "rp2" in sys.platform:
+if "alif" in sys.platform:
+    uart_id = 1
+    tx_pin = None
+elif "rp2" in sys.platform:
     uart_id = 0
     tx_pin = "GPIO0"
     rx_pin = "GPIO1"

tests/extmod/machine_uart_tx.py

@@ -14,7 +14,11 @@ bit_margin = 0
 timing_margin_us = 100
 
 # Configure pins based on the target.
-if "esp32" in sys.platform:
+if "alif" in sys.platform:
+    uart_id = 1
+    pins = {}
+    bit_margin = 1
+elif "esp32" in sys.platform:
     uart_id = 1
     pins = {}
     timing_margin_us = 400

tests/extmod_hardware/machine_uart_irq_rx.py

@@ -15,7 +15,11 @@ import time, sys
 
 byte_by_byte = False
 # Configure pins based on the target.
-if "esp32" in sys.platform:
+if "alif" in sys.platform:
+    uart_id = 1
+    tx_pin = None
+    rx_pin = None
+elif "esp32" in sys.platform:
     uart_id = 1
     tx_pin = 4
     rx_pin = 5

tests/extmod_hardware/machine_uart_irq_rxidle.py

@@ -14,7 +14,11 @@ except (ImportError, AttributeError):
 import time, sys
 
 # Configure pins based on the target.
-if "esp32" in sys.platform:
+if "alif" in sys.platform:
+    uart_id = 1
+    tx_pin = None
+    rx_pin = None
+elif "esp32" in sys.platform:
     uart_id = 1
     tx_pin = 4
     rx_pin = 5