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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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2
util/sconfig/sconfig.y
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@@ -29,7 +29,7 @@ static struct device *cur_parent, *cur_bus;
int number;
}
%token CHIP DEVICE REGISTER BOOL BUS RESOURCE END EQUALS HEX STRING PCI PNP I2C APIC CPU_CLUSTER CPU DOMAIN IRQ DRQ IO NUMBER SUBSYSTEMID INHERIT IOAPIC_IRQ IOAPIC PCIINT GENERIC SPI
%token CHIP DEVICE REGISTER BOOL BUS RESOURCE END EQUALS HEX STRING PCI PNP I2C APIC CPU_CLUSTER CPU DOMAIN IRQ DRQ IO NUMBER SUBSYSTEMID INHERIT IOAPIC_IRQ IOAPIC PCIINT GENERIC SPI MMIO
%%
devtree: { cur_parent = cur_bus = head; } chip { postprocess_devtree(); } ;