[U-Boot] [PATCH v3 4/4] mips: ath79: add AP121 reference board

Wills Wang
2015-12-24T11:22:03Z

Signed-off-by: Wills Wang <wills.wang@live.com>
---

Changes in v3:
- Convert serial driver to driver model
- Convert spi driver to driver model
- Add support for device tree
- Move SoC specific header files into arch/mips/mach-ath79/include/mach
- Optimize assembly code
- Same code style convertion

Changes in v2:
- Move all SoC specific header files into arch/mips/include/asm/arch-ath79
- Check SOC type and extract common code into arch/mips/mach-ath79
- Add a compatible spi driver
- Move serial driver code into drivers/serial
- Add a reference board implemention

arch/mips/Kconfig | 8 +++++
arch/mips/dts/Makefile | 2 +-
arch/mips/dts/ap121.dts | 37 ++++++++++++++++++++
arch/mips/dts/ar933x.dtsi | 64 +++++++++++++++++++++++++++++++++++
board/ath79/ap121/Kconfig | 15 ++++++++
board/ath79/ap121/MAINTAINERS | 6 ++++
board/ath79/ap121/Makefile | 8 +++++
board/ath79/ap121/README | 18 ++++++++++
board/ath79/ap121/ap121.c | 18 ++++++++++
board/ath79/ap121/config.mk | 16 +++++++++
configs/ap121_defconfig | 42 +++++++++++++++++++++++
include/configs/ap121.h | 79 +++++++++++++++++++++++++++++++++++++++++++
12 files changed, 312 insertions(+), 1 deletion(-)
create mode 100644 arch/mips/dts/ap121.dts
create mode 100644 arch/mips/dts/ar933x.dtsi
create mode 100644 board/ath79/ap121/Kconfig
create mode 100644 board/ath79/ap121/MAINTAINERS
create mode 100644 board/ath79/ap121/Makefile
create mode 100644 board/ath79/ap121/README
create mode 100644 board/ath79/ap121/ap121.c
create mode 100644 board/ath79/ap121/config.mk
create mode 100644 configs/ap121_defconfig
create mode 100644 include/configs/ap121.h

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 7f7e258..09b8709 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -51,6 +51,13 @@ config TARGET_PB1X00
select SUPPORTS_CPU_MIPS32_R2
select SYS_MIPS_CACHE_INIT_RAM_LOAD

+config TARGET_AP121
+ bool "Support ap121"
+ select SUPPORTS_BIG_ENDIAN
+ select SUPPORTS_CPU_MIPS32_R1
+ select SUPPORTS_CPU_MIPS32_R2
+ select SYS_MIPS_CACHE_INIT_RAM_LOAD
+

endchoice

@@ -59,6 +66,7 @@ source "board/imgtec/malta/Kconfig"
source "board/micronas/vct/Kconfig"
source "board/pb1x00/Kconfig"
source "board/qemu-mips/Kconfig"
+source "board/ath79/ap121/Kconfig"

if MIPS

diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
index 47b6eb5..6f8b413 100644
--- a/arch/mips/dts/Makefile
+++ b/arch/mips/dts/Makefile
@@ -2,7 +2,7 @@
# SPDX-License-Identifier: GPL-2.0+
#

-dtb-y +=
+dtb-$(CONFIG_TARGET_AP121) += ap121.dtb

targets += $(dtb-y)

diff --git a/arch/mips/dts/ap121.dts b/arch/mips/dts/ap121.dts
new file mode 100644
index 0000000..769458a
--- /dev/null
+++ b/arch/mips/dts/ap121.dts
@@ -0,0 +1,37 @@
+/dts-v1/;
+#include "ar933x.dtsi"
+
+/ {
+ model = "AP121 Reference Board";
+ compatible = "ath79,ap121", "ath79,ar933x";
+
+ aliases {
+ spi0 = &spi0;
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+};
+
+&xtal {
+ clock-frequency = <25000000>;
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&spi0 {
+ spi-max-frequency = <25000000>;
+ status = "okay";
+ spi-flash at 0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "spi-flash";
+ memory-map = <0x9f000000 0x00800000>;
+ spi-max-frequency = <25000000>;
+ reg = <0>;
+ };
+};
diff --git a/arch/mips/dts/ar933x.dtsi b/arch/mips/dts/ar933x.dtsi
new file mode 100644
index 0000000..64b30f7
--- /dev/null
+++ b/arch/mips/dts/ar933x.dtsi
@@ -0,0 +1,64 @@
+#include "skeleton.dtsi"
+
+/ {
+ compatible = "ath79,ar933x";
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu at 0 {
+ device_type = "cpu";
+ compatible = "mips,mips24Kc";
+ reg = <0>;
+ };
+ };
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ xtal: xtal {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-output-names = "xtal";
+ };
+ };
+
+ ahb {
+ compatible = "simple-bus";
+ ranges;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ apb {
+ compatible = "simple-bus";
+ ranges;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ uart0: uart at 18020000 {
+ compatible = "ath79,ar933x-uart";
+ reg = <0x18020000 0x20>;
+
+ status = "disabled";
+ };
+ };
+
+ spi0: spi at 1f000000 {
+ compatible = "ath79,ath79-spi";
+ reg = <0x1f000000 0x10>;
+
+ status = "disabled";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+};
diff --git a/board/ath79/ap121/Kconfig b/board/ath79/ap121/Kconfig
new file mode 100644
index 0000000..88d9eff
--- /dev/null
+++ b/board/ath79/ap121/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_AP121
+
+config SYS_BOARD
+ default "ap121"
+
+config SYS_VENDOR
+ default "ath79"
+
+config SYS_SOC
+ default "ath79"
+
+config SYS_CONFIG_NAME
+ default "ap121"
+
+endif
diff --git a/board/ath79/ap121/MAINTAINERS b/board/ath79/ap121/MAINTAINERS
new file mode 100644
index 0000000..319b521
--- /dev/null
+++ b/board/ath79/ap121/MAINTAINERS
@@ -0,0 +1,6 @@
+AP121 BOARD
+M: Wills Wang <wills.wang@live.com>
+S: Maintained
+F: board/ath79/ap121/
+F: include/configs/ap121.h
+F: configs/ap121_defconfig
diff --git a/board/ath79/ap121/Makefile b/board/ath79/ap121/Makefile
new file mode 100644
index 0000000..9132118
--- /dev/null
+++ b/board/ath79/ap121/Makefile
@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2003-2006
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y = ap121.o
diff --git a/board/ath79/ap121/README b/board/ath79/ap121/README
new file mode 100644
index 0000000..104850f
--- /dev/null
+++ b/board/ath79/ap121/README
@@ -0,0 +1,18 @@
+ATHEROS AP121
+==================
+
+Supported hardware: AP121 referance board.
+
+Files of the AP121 port
+--------------------------
+
+arch/mips/mach-ath79/ar933x/ - The CPU support code for the Atheros ar933x
+arch/mips/include/asm/arch-ath79 - Header files for the Atheros ath79
+board/ath79/ap121/ - AP121 board specific files
+include/configs/ap121.h - AP121 configuration file
+
+Configure
+-------------------
+
+To configure for the current board
+ make ap121_defconfig
diff --git a/board/ath79/ap121/ap121.c b/board/ath79/ap121/ap121.c
new file mode 100644
index 0000000..3a3d782
--- /dev/null
+++ b/board/ath79/ap121/ap121.c
@@ -0,0 +1,18 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/io.h>
+
+int checkboard(void)
+{
+ puts("Board: AP121\n");
+ return 0;
+}
diff --git a/board/ath79/ap121/config.mk b/board/ath79/ap121/config.mk
new file mode 100644
index 0000000..f7dd3b7
--- /dev/null
+++ b/board/ath79/ap121/config.mk
@@ -0,0 +1,16 @@
+#
+# (C) Copyright 2003
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+#
+# AP121 referance board, MIPS32 core
+#
+
+# ROM version
+CONFIG_SYS_TEXT_BASE = 0x9f000000
+
+# RAM version
+#CONFIG_SYS_TEXT_BASE = 0x80010000
diff --git a/configs/ap121_defconfig b/configs/ap121_defconfig
new file mode 100644
index 0000000..cec0bb7
--- /dev/null
+++ b/configs/ap121_defconfig
@@ -0,0 +1,42 @@
+CONFIG_MIPS=y
+CONFIG_TARGET_AP121=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_SYS_PROMPT="ap121 # "
+CONFIG_OF_CONTROL=y
+CONFIG_DEFAULT_DEVICE_TREE="ap121"
+CONFIG_DM=y
+CONFIG_DM_SERIAL=y
+CONFIG_DM_SPI=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_ATH79_SPI=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_ATMEL=y
+CONFIG_SPI_FLASH_EON=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_SST=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPI_FLASH_USE_4K_SECTORS=y
+CONFIG_SPI_FLASH_DATAFLASH=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+# CONFIG_NET is not set
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_CONSOLE is not set
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_CMD_CRC32 is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+# CONFIG_CMD_NFS is not set
+# CONFIG_CMD_NET is not set
+CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/include/configs/ap121.h b/include/configs/ap121.h
new file mode 100644
index 0000000..3481922
--- /dev/null
+++ b/include/configs/ap121.h
@@ -0,0 +1,79 @@
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <linux/kconfig.h>
+#include <linux/sizes.h>
+
+#define CONFIG_ARCH_ATH79
+#define CONFIG_SOC_AR933X
+
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+
+#define CONFIG_OF_LIBFDT
+
+#define CONFIG_SYS_HZ 1000
+#define CONFIG_SYS_MHZ 200
+#define CONFIG_SYS_MIPS_TIMER_FREQ (CONFIG_SYS_MHZ * 1000000)
+
+/* Cache Configuration */
+#define CONFIG_SYS_DCACHE_SIZE 32 * SZ_1K
+#define CONFIG_SYS_ICACHE_SIZE 64 * SZ_1K
+#define CONFIG_SYS_CACHELINE_SIZE 32
+
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
+
+#define CONFIG_SYS_MALLOC_LEN ROUND(0x30000 + 128 * SZ_1K, 0x1000)
+
+#define CONFIG_SYS_BOOTPARAMS_LEN 128 * SZ_1K
+
+#define CONFIG_SYS_SDRAM_BASE 0x80000000
+#define CONFIG_SYS_LOAD_ADDR 0x81000000
+
+#define CONFIG_SYS_INIT_SP_OFFSET 0x20000
+#define CONFIG_SYS_NO_FLASH
+
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_OFFSET (256 * SZ_1K)
+#define CONFIG_ENV_SECT_SIZE (64 * SZ_1K)
+#define CONFIG_ENV_SIZE (64 * SZ_1K)
+
+#define CONFIG_AR933X_SERIAL
+#define CONFIG_BAUDRATE 115200
+#define CONFIG_SYS_BAUDRATE_TABLE { 600, 1200, 2400, 4800, 9600, 14400, \
+ 19200, 28800, 38400, 56000, 57600, 115200, \
+ 128000, 153600, 230400, 250000, 256000, 460800, \
+ 576000, 921600, 1000000, 1152000, 1500000, 2000000 }
+
+#define CONFIG_BOOTDELAY 3
+#define CONFIG_BOOTARGS "console=ttyS0,115200 root=/dev/mtdblock2 rootfstype=squashfs"
+#define CONFIG_BOOTCOMMAND "sf probe;mtdparts default;bootm 0x9f300000"
+#define CONFIG_LZMA
+
+#define MTDIDS_DEFAULT "nor0=spi-flash.0"
+#define MTDPARTS_DEFAULT "mtdparts=spi-flash.0:" \
+ "256k(u-boot),64k(u-boot-env),2752k(rootfs),896k(uImage),64k(NVRAM),64k(ART)"
+
+/*
+ * Command
+ */
+#define CONFIG_CMD_MTDPARTS
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_CBSIZE 256
+#define CONFIG_SYS_MAXARGS 16
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+
+/*
+ * Diagnostics
+ */
+#define CONFIG_SYS_MEMTEST_START 0x80100000
+#define CONFIG_SYS_MEMTEST_END 0x83f00000
+#define CONFIG_CMD_MEMTEST
+
+#endif /* __CONFIG_H */
--
1.9.1