[PATCH v4 04/15] lib: utils/serial: Use kconfig for enabling/disabling drivers
Anup Patel
apatel at ventanamicro.com
Sat Jul 30 21:56:42 PDT 2022
We update serial drivers makefile to use kconfig for enabling/disabling
drivers. To avoid compile errors, we also enable appropriate serial
drivers for each platform.
Signed-off-by: Anup Patel <apatel at ventanamicro.com>
---
include/sbi_utils/serial/fdt_serial.h | 8 +++
lib/utils/Kconfig | 6 +++
lib/utils/serial/Kconfig | 71 +++++++++++++++++++++++++++
lib/utils/serial/objects.mk | 44 ++++++++---------
platform/andes/ae350/Kconfig | 1 +
platform/fpga/ariane/Kconfig | 1 +
platform/fpga/openpiton/Kconfig | 1 +
platform/generic/configs/defconfig | 8 +++
platform/kendryte/k210/Kconfig | 1 +
platform/nuclei/ux600/Kconfig | 1 +
platform/template/Kconfig | 1 +
11 files changed, 121 insertions(+), 22 deletions(-)
create mode 100644 lib/utils/serial/Kconfig
diff --git a/include/sbi_utils/serial/fdt_serial.h b/include/sbi_utils/serial/fdt_serial.h
index 6451c23..daa2e4f 100644
--- a/include/sbi_utils/serial/fdt_serial.h
+++ b/include/sbi_utils/serial/fdt_serial.h
@@ -12,6 +12,8 @@
#include <sbi/sbi_types.h>
+#ifdef CONFIG_FDT_SERIAL
+
struct fdt_serial {
const struct fdt_match *match_table;
int (*init)(void *fdt, int nodeoff, const struct fdt_match *match);
@@ -19,4 +21,10 @@ struct fdt_serial {
int fdt_serial_init(void);
+#else
+
+static inline int fdt_serial_init(void) { return 0; }
+
+#endif
+
#endif
diff --git a/lib/utils/Kconfig b/lib/utils/Kconfig
index d6e0506..4524a3f 100644
--- a/lib/utils/Kconfig
+++ b/lib/utils/Kconfig
@@ -1 +1,7 @@
# SPDX-License-Identifier: BSD-2-Clause
+
+menu "Utils and Drivers Support"
+
+source "$(OPENSBI_SRC_DIR)/lib/utils/serial/Kconfig"
+
+endmenu
diff --git a/lib/utils/serial/Kconfig b/lib/utils/serial/Kconfig
new file mode 100644
index 0000000..e114f26
--- /dev/null
+++ b/lib/utils/serial/Kconfig
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: BSD-2-Clause
+
+menu "Serial Device Support"
+
+config FDT_SERIAL
+ bool "FDT based serial drivers"
+ default n
+
+if FDT_SERIAL
+
+config FDT_SERIAL_GAISLER
+ bool "Gaisler UART FDT driver"
+ select SERIAL_GAISLER
+ default n
+
+config FDT_SERIAL_HTIF
+ bool "Host transfer interface (HTIF) UART FDT driver"
+ default n
+
+config FDT_SERIAL_SHAKTI
+ bool "Shakti UART FDT driver"
+ select SERIAL_SHAKTI
+ default n
+
+config FDT_SERIAL_SIFIVE
+ bool "SiFive UART FDT driver"
+ select SERIAL_SIFIVE
+ default n
+
+config FDT_SERIAL_LITEX
+ bool "LiteX UART FDT driver"
+ select SERIAL_LITEX
+ default n
+
+config FDT_SERIAL_UART8250
+ bool "8250 UART FDT driver"
+ select SERIAL_UART8250
+ default n
+
+config FDT_SERIAL_XILINX_UARTLITE
+ bool "Xilinx UART Lite FDT driver"
+ select SERIAL_XILINX_UARTLITE
+ default n
+
+endif
+
+config SERIAL_GAISLER
+ bool "Gaisler UART support"
+ default n
+
+config SERIAL_SHAKTI
+ bool "Shakti UART support"
+ default n
+
+config SERIAL_SIFIVE
+ bool "SiFive UART support"
+ default n
+
+config SERIAL_LITEX
+ bool "LiteX UART support"
+ default n
+
+config SERIAL_UART8250
+ bool "8250 UART support"
+ default n
+
+config SERIAL_XILINX_UARTLITE
+ bool "Xilinx UART Lite support"
+ default n
+
+endmenu
diff --git a/lib/utils/serial/objects.mk b/lib/utils/serial/objects.mk
index d26a74e..fa9f5a3 100644
--- a/lib/utils/serial/objects.mk
+++ b/lib/utils/serial/objects.mk
@@ -7,33 +7,33 @@
# Anup Patel <anup.patel at wdc.com>
#
-libsbiutils-objs-y += serial/fdt_serial.o
-libsbiutils-objs-y += serial/fdt_serial_drivers.o
+libsbiutils-objs-$(CONFIG_FDT_SERIAL) += serial/fdt_serial.o
+libsbiutils-objs-$(CONFIG_FDT_SERIAL) += serial/fdt_serial_drivers.o
-carray-fdt_serial_drivers-y += fdt_serial_gaisler
-libsbiutils-objs-y += serial/fdt_serial_gaisler.o
+carray-fdt_serial_drivers-$(CONFIG_FDT_SERIAL_GAISLER) += fdt_serial_gaisler
+libsbiutils-objs-$(CONFIG_FDT_SERIAL_GAISLER) += serial/fdt_serial_gaisler.o
-carray-fdt_serial_drivers-y += fdt_serial_htif
-libsbiutils-objs-y += serial/fdt_serial_htif.o
+carray-fdt_serial_drivers-$(CONFIG_FDT_SERIAL_HTIF) += fdt_serial_htif
+libsbiutils-objs-$(CONFIG_FDT_SERIAL_HTIF) += serial/fdt_serial_htif.o
-carray-fdt_serial_drivers-y += fdt_serial_shakti
-libsbiutils-objs-y += serial/fdt_serial_shakti.o
+carray-fdt_serial_drivers-$(CONFIG_FDT_SERIAL_SHAKTI) += fdt_serial_shakti
+libsbiutils-objs-$(CONFIG_FDT_SERIAL_SHAKTI) += serial/fdt_serial_shakti.o
-carray-fdt_serial_drivers-y += fdt_serial_sifive
-libsbiutils-objs-y += serial/fdt_serial_sifive.o
+carray-fdt_serial_drivers-$(CONFIG_FDT_SERIAL_SIFIVE) += fdt_serial_sifive
+libsbiutils-objs-$(CONFIG_FDT_SERIAL_SIFIVE) += serial/fdt_serial_sifive.o
-carray-fdt_serial_drivers-y += fdt_serial_litex
-libsbiutils-objs-y += serial/fdt_serial_litex.o
+carray-fdt_serial_drivers-$(CONFIG_FDT_SERIAL_LITEX) += fdt_serial_litex
+libsbiutils-objs-$(CONFIG_FDT_SERIAL_LITEX) += serial/fdt_serial_litex.o
-carray-fdt_serial_drivers-y += fdt_serial_uart8250
-libsbiutils-objs-y += serial/fdt_serial_uart8250.o
+carray-fdt_serial_drivers-$(CONFIG_FDT_SERIAL_UART8250) += fdt_serial_uart8250
+libsbiutils-objs-$(CONFIG_FDT_SERIAL_UART8250) += serial/fdt_serial_uart8250.o
-carray-fdt_serial_drivers-y += fdt_serial_xlnx_uartlite
-libsbiutils-objs-y += serial/fdt_serial_xlnx_uartlite.o
+carray-fdt_serial_drivers-$(CONFIG_FDT_SERIAL_XILINX_UARTLITE) += fdt_serial_xlnx_uartlite
+libsbiutils-objs-$(CONFIG_FDT_SERIAL_XILINX_UARTLITE) += serial/fdt_serial_xlnx_uartlite.o
-libsbiutils-objs-y += serial/gaisler-uart.o
-libsbiutils-objs-y += serial/shakti-uart.o
-libsbiutils-objs-y += serial/sifive-uart.o
-libsbiutils-objs-y += serial/litex-uart.o
-libsbiutils-objs-y += serial/uart8250.o
-libsbiutils-objs-y += serial/xlnx-uartlite.o
+libsbiutils-objs-$(CONFIG_SERIAL_GAISLER) += serial/gaisler-uart.o
+libsbiutils-objs-$(CONFIG_SERIAL_SHAKTI) += serial/shakti-uart.o
+libsbiutils-objs-$(CONFIG_SERIAL_SIFIVE) += serial/sifive-uart.o
+libsbiutils-objs-$(CONFIG_SERIAL_LITEX) += serial/litex-uart.o
+libsbiutils-objs-$(CONFIG_SERIAL_UART8250) += serial/uart8250.o
+libsbiutils-objs-$(CONFIG_SERIAL_XILINX_UARTLITE) += serial/xlnx-uartlite.o
diff --git a/platform/andes/ae350/Kconfig b/platform/andes/ae350/Kconfig
index 4b73c76..162d19c 100644
--- a/platform/andes/ae350/Kconfig
+++ b/platform/andes/ae350/Kconfig
@@ -2,4 +2,5 @@
config PLATFORM_ANDES_AE350
bool
+ select SERIAL_UART8250
default y
diff --git a/platform/fpga/ariane/Kconfig b/platform/fpga/ariane/Kconfig
index 70d2004..3ce0ec1 100644
--- a/platform/fpga/ariane/Kconfig
+++ b/platform/fpga/ariane/Kconfig
@@ -2,4 +2,5 @@
config PLATFORM_ARIANE_FPGA
bool
+ select SERIAL_UART8250
default y
diff --git a/platform/fpga/openpiton/Kconfig b/platform/fpga/openpiton/Kconfig
index 81e4b76..4dd752d 100644
--- a/platform/fpga/openpiton/Kconfig
+++ b/platform/fpga/openpiton/Kconfig
@@ -2,4 +2,5 @@
config PLATFORM_OPENPITON_FPGA
bool
+ select SERIAL_UART8250
default y
diff --git a/platform/generic/configs/defconfig b/platform/generic/configs/defconfig
index e69de29..ce70c59 100644
--- a/platform/generic/configs/defconfig
+++ b/platform/generic/configs/defconfig
@@ -0,0 +1,8 @@
+CONFIG_FDT_SERIAL=y
+CONFIG_FDT_SERIAL_GAISLER=y
+CONFIG_FDT_SERIAL_HTIF=y
+CONFIG_FDT_SERIAL_SHAKTI=y
+CONFIG_FDT_SERIAL_SIFIVE=y
+CONFIG_FDT_SERIAL_LITEX=y
+CONFIG_FDT_SERIAL_UART8250=y
+CONFIG_FDT_SERIAL_XILINX_UARTLITE=y
diff --git a/platform/kendryte/k210/Kconfig b/platform/kendryte/k210/Kconfig
index 889f16b..adc7613 100644
--- a/platform/kendryte/k210/Kconfig
+++ b/platform/kendryte/k210/Kconfig
@@ -2,4 +2,5 @@
config PLATFORM_KENDRYTE_K210
bool
+ select SERIAL_SIFIVE
default y
diff --git a/platform/nuclei/ux600/Kconfig b/platform/nuclei/ux600/Kconfig
index c368ef4..69fe8f8 100644
--- a/platform/nuclei/ux600/Kconfig
+++ b/platform/nuclei/ux600/Kconfig
@@ -2,4 +2,5 @@
config PLATFORM_NUCLEI_UX600
bool
+ select SERIAL_SIFIVE
default y
diff --git a/platform/template/Kconfig b/platform/template/Kconfig
index b9c4350..5a5472b 100644
--- a/platform/template/Kconfig
+++ b/platform/template/Kconfig
@@ -2,4 +2,5 @@
config PLATFORM_TEMPLATE
bool
+ select SERIAL_UART8250
default y
--
2.34.1
More information about the opensbi
mailing list