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sconfig: Add a new mmio resource type

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Add support for a mmio resource in the devicetree to allow
memory-mapped IO addresses to be assigned to given values.

AMD platforms perform a significant amount of configuration through
these MMIO addresses, including I2C bus configuration.

BUG=b:72121803

Change-Id: I5608721c22c1b229f527815b5f17fff3a080c3c8
Signed-off-by: Justin TerAvest <teravest@chromium.org>
Reviewed-on: https://review.coreboot.org/23319
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Justin TerAvest
2018-01-17 16:36:30 -08:00
committed by Martin Roth
parent 4eaf0fa155
commit ca2ed9f450
9 changed files with 219 additions and 204 deletions
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4
util/sconfig/main.c
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@ -290,7 +290,11 @@ struct device *new_device(struct device *parent, struct device *busdev,
new_d->path = ".type=DEVICE_PATH_SPI,{.spi={ .cs = 0x%x }}";
break;
case MMIO:
new_d->path = ".type=DEVICE_PATH_MMIO,{.mmio={ .addr = 0x%x }}";
break;
}
return new_d;
}