fsi: Add ast2600 master driver

The ast2600 BMC has a pair of FSI masters in it, behind an AHB to OPB bridge. The master driver supports reads and writes of full words, half word and byte accesses to remote CFAMs. It can perform very basic error recovery through resetting of the FSI port when an error is detected, and the issuing of breaks and terms. Signed-off-by: Joel Stanley <[email protected]> Acked-by: Alistair Popple <[email protected]> -- v2: - remove debugging - squash in fixes Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
raspberrypi · Nov 8, 2019 · 606397d · 606397d
1 parent cccaa16
commit 606397d
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diff --git a/drivers/fsi/Kconfig b/drivers/fsi/Kconfig
@@ -53,6 +53,14 @@ config FSI_MASTER_AST_CF
 	lines driven by the internal ColdFire coprocessor. This requires
 	the corresponding machine specific ColdFire firmware to be available.
 
+config FSI_MASTER_ASPEED
+	tristate "FSI ASPEED master"
+	help
+	 This option enables a FSI master that is present behind an OPB bridge
+	 in the AST2600.
+
+	 Enable it for your BMC kernel in an OpenPower or IBM Power system.
+
 config FSI_SCOM
 	tristate "SCOM FSI client device driver"
 	---help---

diff --git a/drivers/fsi/Makefile b/drivers/fsi/Makefile
@@ -2,6 +2,7 @@
 
 obj-$(CONFIG_FSI) += fsi-core.o
 obj-$(CONFIG_FSI_MASTER_HUB) += fsi-master-hub.o
+obj-$(CONFIG_FSI_MASTER_ASPEED) += fsi-master-aspeed.o
 obj-$(CONFIG_FSI_MASTER_GPIO) += fsi-master-gpio.o
 obj-$(CONFIG_FSI_MASTER_AST_CF) += fsi-master-ast-cf.o
 obj-$(CONFIG_FSI_SCOM) += fsi-scom.o