[sw] Add spi_host_tx_rx_test
Add a basic spi host tx rx test.
This test uses the spi_agent's native "loopback" behavior.
The spi agent, when in device mode, by default just plays
back whatever data is sent to it by the host.
The test prepares a random payload, sends it to the device agent,
and just reads back to make sure the data is matched.
This test DOES NOT do any kind of flash protocol checking.
- Add a device value for high speed peripehral clock
- Add a minor fix for dif_spi_host clock divider setting
Signed-off-by: Timothy Chen <timothytim@google.com>
[sw] test updates
- update spi_host_tx_rx_test
- minor fix for spi_host clock divider
Signed-off-by: Timothy Chen <timothytim@google.com>
[dv] Add test sequence
- updates to testplan
- add if_mode setup into chip_base_test
Signed-off-by: Timothy Chen <timothytim@google.com>
[top/dv] Minor updates
Signed-off-by: Timothy Chen <timothytim@google.com>
[top/dv] spi_host configuration fix
spi host does not support outputting at 1:1 frequencies.
Signed-off-by: Timothy Chen <timothytim@google.com>
[top/dv] Various updates for spi_host testing
- integrate with latest chip_if
- add support for multiple spi_device agents
- add enum to access pad pull-up attributes
Signed-off-by: Timothy Chen <timothytim@google.com>
diff --git a/util/topgen/c.py b/util/topgen/c.py
index 1c6adae..78d955a 100644
--- a/util/topgen/c.py
+++ b/util/topgen/c.py
@@ -115,6 +115,7 @@
self._init_plic_mapping()
self._init_alert_mapping()
self._init_pinmux_mapping()
+ self._init_pad_mapping()
self._init_pwrmgr_wakeups()
self._init_rstmgr_sw_rsts()
self._init_pwrmgr_reset_requests()
@@ -389,6 +390,45 @@
self.pinmux_mio_out = mio_out
self.pinmux_outsel = outsel
+ def _init_pad_mapping(self):
+ """Generate C enums for order of MIO and DIO pads.
+
+ These are needed to configure pad specific configurations such as
+ slew rate and other flags.
+ """
+ direct_enum = CEnum(self._top_name +
+ Name(["direct", "pads"]))
+
+ muxed_enum = CEnum(self._top_name +
+ Name(["muxed", "pads"]))
+
+ pads_info = self.top['pinout']['pads']
+ muxed = [pad['name'] for pad in pads_info if pad['connection'] == 'muxed']
+
+ # The logic here follows the sequence done in toplevel_pkg.sv.tpl.
+ # The direct pads do not enumerate directly from the pinout like the muxed
+ # ios. Instead it follows a direction from the pinmux perspective.
+ pads_info = self.top['pinmux']['ios']
+ direct = [pad for pad in pads_info if pad['connection'] != 'muxed']
+
+ for pad in (direct):
+ name = f"{pad['name']}"
+ if pad['width'] > 1:
+ name = f"{name}{pad['idx']}"
+
+ direct_enum.add_constant(
+ Name.from_snake_case(name))
+ direct_enum.add_last_constant("Last valid direct pad")
+
+ for pad in (muxed):
+ muxed_enum.add_constant(
+ Name.from_snake_case(pad))
+ muxed_enum.add_last_constant("Last valid muxed pad")
+
+ self.direct_pads = direct_enum
+ self.muxed_pads = muxed_enum
+
+
def _init_pwrmgr_wakeups(self):
enum = CEnum(self._top_name +
Name(["power", "manager", "wake", "ups"]))
