mips: Add LinkIt Smart 7688 support

The LinkIt Smart 7688 modules have a MT7688 SoC with 128 MiB of RAM and 32 MiB of flash (SPI NOR). This patch also includes 2 targets. One is the target that can be programmed into the SPI NOR flash and a 2nd target "xxx-ram" is added to support loading and booting via an already running U-Boot version. This allows easy development and testing without the need to flash the image each time. Signed-off-by: Stefan Roese <sr@denx.de> [fixed and regenerated defconfig files] Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

mips: Add LinkIt Smart 7688 support
The LinkIt Smart 7688 modules have a MT7688 SoC with 128 MiB of RAM and 32 MiB of flash (SPI NOR). This patch also includes 2 targets. One is the target that can be programmed into the SPI NOR flash and a 2nd target "xxx-ram" is added to support loading and booting via an already running U-Boot version. This allows easy development and testing without the need to flash the image each time. Signed-off-by: Stefan Roese <sr@denx.de> [fixed and regenerated defconfig files] Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Stefan Roese · Daniel Schwierzeck
1 parent 4c835a607b
Showing 9 changed files with 265 additions and 0 deletions Side-by-side Diff
arch/mips/dts/linkit-smart-7688.dts
arch/mips/mach-mt7620/Kconfig
board/seeed/linkit-smart-7688/Kconfig
board/seeed/linkit-smart-7688/MAINTAINERS
board/seeed/linkit-smart-7688/Makefile
board/seeed/linkit-smart-7688/board.c
configs/linkit-smart-7688-ram_defconfig
configs/linkit-smart-7688_defconfig
include/configs/linkit-smart-7688.h
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 Stefan Roese <sr@denx.de>
+ */
+
+/dts-v1/;
+
+#include "mt7628a.dtsi"
+
+/ {
+	compatible = "seeed,linkit-smart-7688", "ralink,mt7628a-soc";
+	model = "LinkIt-Smart-7688";
+
+	aliases {
+		serial0 = &uart2;
+		spi0 = &spi0;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x08000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,57600";
+		stdout-path = &uart2;
+	};
+};
+
+&uart2 {
+	status = "okay";
+	clock-frequency = <40000000>;
+};
+
+&spi0 {
+	status = "okay";
+	num-cs = <2>;
+
+	spi-flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "spi-flash", "jedec,spi-nor";
+		spi-max-frequency = <25000000>;
+		reg = <0>;
+	};
+};
@@ -21,6 +21,17 @@
 choice
 	prompt "Board select"
  
+config BOARD_LINKIT_SMART_7688
+	bool "LinkIt Smart 7688"
+	depends on SOC_MT7620
+	select SUPPORTS_BOOT_RAM
+	help
+	  Seeed LinkIt Smart 7688 boards have a MT7688 SoC with 128 MiB of RAM
+	  and 32 MiB of flash (SPI).
+	  Between its different peripherals there's an integrated switch with 4
+	  ethernet ports, 1 USB port, 1 UART, GPIO buttons and LEDs, and
+	  a MT7688 (PCIe).
+
 endchoice
  
 choice
@@ -109,6 +120,8 @@
  
 config SUPPORTS_BOOT_RAM
 	bool
+
+source "board/seeed/linkit-smart-7688/Kconfig"
  
 endmenu
+if BOARD_LINKIT_SMART_7688
+
+config SYS_BOARD
+	default "linkit-smart-7688"
+
+config SYS_VENDOR
+	default "seeed"
+
+config SYS_CONFIG_NAME
+	default "linkit-smart-7688"
+
+endif
+LINKIT_SMART_7688 BOARD
+M:	Stefan Roese <sr@denx.de>
+S:	Maintained
+F:	board/seeed/linkit-smart-7688
+F:	include/configs/linkit-smart-7688.h
+F:	configs/linkit-smart-7688_defconfig
+F:	configs/linkit-smart-7688_ram_defconfig
+F:	arch/mips/dts/linkit-smart-7688.dts
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y += board.o
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Stefan Roese <sr@denx.de>
+ */
+
+#include <common.h>
+#include <asm/io.h>
+
+#define MT76XX_GPIO1_MODE	0xb0000060
+
+void board_debug_uart_init(void)
+{
+	/* Select UART2 mode instead of GPIO mode (default) */
+	clrbits_le32((void __iomem *)MT76XX_GPIO1_MODE, GENMASK(27, 26));
+}
+
+int board_early_init_f(void)
+{
+	/*
+	 * The pin muxing of UART2 also needs to be done, if debug uart
+	 * is not enabled. So we need to call this function here as well.
+	 */
+	board_debug_uart_init();
+
+	return 0;
+}
+CONFIG_MIPS=y
+CONFIG_SYS_TEXT_BASE=0x80010000
+CONFIG_ARCH_MT7620=y
+# CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set
+# CONFIG_MIPS_BOOT_ENV_LEGACY is not set
+CONFIG_MIPS_BOOT_FDT=y
+CONFIG_NR_DRAM_BANKS=1
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_SYS_CONSOLE_INFO_QUIET=y
+CONFIG_BOARD_EARLY_INIT_F=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_CPU=y
+CONFIG_CMD_LICENSE=y
+# CONFIG_CMD_BOOTD is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_XIMG is not set
+CONFIG_CMD_MEMINFO=y
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+# CONFIG_CMD_NET is not set
+CONFIG_CMD_TIME=y
+CONFIG_OF_EMBED=y
+CONFIG_DEFAULT_DEVICE_TREE="linkit-smart-7688"
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+# CONFIG_DM_DEVICE_REMOVE is not set
+CONFIG_HAVE_BLOCK_DEVICE=y
+CONFIG_CLK=y
+CONFIG_CPU=y
+CONFIG_DM_GPIO=y
+CONFIG_LED=y
+CONFIG_LED_BLINK=y
+CONFIG_LED_GPIO=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_PHY=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_RAM=y
+CONFIG_DM_RESET=y
+CONFIG_BAUDRATE=57600
+# CONFIG_SPL_SERIAL_PRESENT is not set
+CONFIG_SYS_NS16550=y
+CONFIG_SPI=y
+CONFIG_SYSRESET_SYSCON=y
+CONFIG_MIPS=y
+CONFIG_SYS_TEXT_BASE=0x9c000000
+CONFIG_ARCH_MT7620=y
+CONFIG_BOOT_ROM=y
+CONFIG_ONBOARD_DDR2_SIZE_1024MBIT=y
+CONFIG_ONBOARD_DDR2_CHIP_WIDTH_16BIT=y
+# CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set
+# CONFIG_MIPS_BOOT_ENV_LEGACY is not set
+CONFIG_MIPS_BOOT_FDT=y
+CONFIG_NR_DRAM_BANKS=1
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_SYS_CONSOLE_INFO_QUIET=y
+CONFIG_BOARD_EARLY_INIT_F=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_CPU=y
+CONFIG_CMD_LICENSE=y
+# CONFIG_CMD_BOOTD is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_CRC32 is not set
+CONFIG_CMD_MEMINFO=y
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+# CONFIG_CMD_NET is not set
+CONFIG_CMD_TIME=y
+CONFIG_OF_EMBED=y
+CONFIG_DEFAULT_DEVICE_TREE="linkit-smart-7688"
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+# CONFIG_DM_DEVICE_REMOVE is not set
+CONFIG_HAVE_BLOCK_DEVICE=y
+CONFIG_CLK=y
+CONFIG_CPU=y
+CONFIG_DM_GPIO=y
+CONFIG_LED=y
+CONFIG_LED_BLINK=y
+CONFIG_LED_GPIO=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_PHY=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_RAM=y
+CONFIG_DM_RESET=y
+CONFIG_BAUDRATE=57600
+# CONFIG_SPL_SERIAL_PRESENT is not set
+CONFIG_SYS_NS16550=y
+CONFIG_SPI=y
+CONFIG_SYSRESET_SYSCON=y
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2018 Stefan Roese <sr@denx.de>
+ */
+
+#ifndef __CONFIG_LINKIT_SMART_7688_H
+#define __CONFIG_LINKIT_SMART_7688_H
+
+/* CPU */
+#define CONFIG_SYS_MIPS_TIMER_FREQ	200000000
+
+/* RAM */
+#define CONFIG_SYS_SDRAM_BASE		0x80000000
+
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_SYS_SDRAM_BASE + 0x100000
+
+#define CONFIG_SYS_INIT_SP_OFFSET	0x400000
+
+#ifdef CONFIG_BOOT_RAM
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#endif
+
+/* UART */
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200, \
+					  230400, 500000, 1500000 }
+
+/* RAM */
+#define CONFIG_SYS_MEMTEST_START	0x80100000
+#define CONFIG_SYS_MEMTEST_END		0x80400000
+
+/* Memory usage */
+#define CONFIG_SYS_MAXARGS		64
+#define CONFIG_SYS_MALLOC_LEN		(1024 * 1024)
+#define CONFIG_SYS_BOOTPARAMS_LEN	(128 * 1024)
+#define CONFIG_SYS_CBSIZE		512
+
+/* U-Boot */
+#define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_TEXT_BASE
+
+/* Environment settings */
+#define CONFIG_ENV_OFFSET		0x40000
+#define CONFIG_ENV_SIZE			(16 << 10)
+#define CONFIG_ENV_SECT_SIZE		(64 << 10)
+
+/*
+ * Environment is right behind U-Boot in flash. Make sure U-Boot
+ * doesn't grow into the environment area.
+ */
+#define CONFIG_BOARD_SIZE_LIMIT		CONFIG_ENV_OFFSET
+
+#endif /* __CONFIG_LINKIT_SMART_7688_H */
	1	+// SPDX-License-Identifier: GPL-2.0
	2	+/*
	3	+ * Copyright (C) 2018 Stefan Roese <sr@denx.de>
	4	+ */
	5	+
	6	+/dts-v1/;
	7	+
	8	+#include "mt7628a.dtsi"
	9	+
	10	+/ {
	11	+ compatible = "seeed,linkit-smart-7688", "ralink,mt7628a-soc";
	12	+ model = "LinkIt-Smart-7688";
	13	+
	14	+ aliases {
	15	+ serial0 = &uart2;
	16	+ spi0 = &spi0;
	17	+ };
	18	+
	19	+ memory@0 {
	20	+ device_type = "memory";
	21	+ reg = <0x0 0x08000000>;
	22	+ };
	23	+
	24	+ chosen {
	25	+ bootargs = "console=ttyS0,57600";
	26	+ stdout-path = &uart2;
	27	+ };
	28	+};
	29	+
	30	+&uart2 {
	31	+ status = "okay";
	32	+ clock-frequency = <40000000>;
	33	+};
	34	+
	35	+&spi0 {
	36	+ status = "okay";
	37	+ num-cs = <2>;
	38	+
	39	+ spi-flash@0 {
	40	+ #address-cells = <1>;
	41	+ #size-cells = <1>;
	42	+ compatible = "spi-flash", "jedec,spi-nor";
	43	+ spi-max-frequency = <25000000>;
	44	+ reg = <0>;
	45	+ };
	46	+};
...	...	@@ -21,6 +21,17 @@
21	21	choice
22	22	prompt "Board select"
23	23
	24	+config BOARD_LINKIT_SMART_7688
	25	+ bool "LinkIt Smart 7688"
	26	+ depends on SOC_MT7620
	27	+ select SUPPORTS_BOOT_RAM
	28	+ help
	29	+ Seeed LinkIt Smart 7688 boards have a MT7688 SoC with 128 MiB of RAM
	30	+ and 32 MiB of flash (SPI).
	31	+ Between its different peripherals there's an integrated switch with 4
	32	+ ethernet ports, 1 USB port, 1 UART, GPIO buttons and LEDs, and
	33	+ a MT7688 (PCIe).
	34	+
24	35	endchoice
25	36
26	37	choice
...	...	@@ -109,6 +120,8 @@
109	120
110	121	config SUPPORTS_BOOT_RAM
111	122	bool
	123	+
	124	+source "board/seeed/linkit-smart-7688/Kconfig"
112	125
113	126	endmenu
	1	+if BOARD_LINKIT_SMART_7688
	2	+
	3	+config SYS_BOARD
	4	+ default "linkit-smart-7688"
	5	+
	6	+config SYS_VENDOR
	7	+ default "seeed"
	8	+
	9	+config SYS_CONFIG_NAME
	10	+ default "linkit-smart-7688"
	11	+
	12	+endif
	1	+LINKIT_SMART_7688 BOARD
	2	+M: Stefan Roese <sr@denx.de>
	3	+S: Maintained
	4	+F: board/seeed/linkit-smart-7688
	5	+F: include/configs/linkit-smart-7688.h
	6	+F: configs/linkit-smart-7688_defconfig
	7	+F: configs/linkit-smart-7688_ram_defconfig
	8	+F: arch/mips/dts/linkit-smart-7688.dts
	1	+// SPDX-License-Identifier: GPL-2.0+
	2	+/*
	3	+ * Copyright (C) 2018 Stefan Roese <sr@denx.de>
	4	+ */
	5	+
	6	+#include <common.h>
	7	+#include <asm/io.h>
	8	+
	9	+#define MT76XX_GPIO1_MODE 0xb0000060
	10	+
	11	+void board_debug_uart_init(void)
	12	+{
	13	+ /* Select UART2 mode instead of GPIO mode (default) */
	14	+ clrbits_le32((void __iomem *)MT76XX_GPIO1_MODE, GENMASK(27, 26));
	15	+}
	16	+
	17	+int board_early_init_f(void)
	18	+{
	19	+ /*
	20	+ * The pin muxing of UART2 also needs to be done, if debug uart
	21	+ * is not enabled. So we need to call this function here as well.
	22	+ */
	23	+ board_debug_uart_init();
	24	+
	25	+ return 0;
	26	+}
	1	+CONFIG_MIPS=y
	2	+CONFIG_SYS_TEXT_BASE=0x80010000
	3	+CONFIG_ARCH_MT7620=y
	4	+# CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set
	5	+# CONFIG_MIPS_BOOT_ENV_LEGACY is not set
	6	+CONFIG_MIPS_BOOT_FDT=y
	7	+CONFIG_NR_DRAM_BANKS=1
	8	+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
	9	+CONFIG_OF_STDOUT_VIA_ALIAS=y
	10	+CONFIG_SYS_CONSOLE_INFO_QUIET=y
	11	+CONFIG_BOARD_EARLY_INIT_F=y
	12	+CONFIG_HUSH_PARSER=y
	13	+CONFIG_CMD_CPU=y
	14	+CONFIG_CMD_LICENSE=y
	15	+# CONFIG_CMD_BOOTD is not set
	16	+# CONFIG_CMD_ELF is not set
	17	+# CONFIG_CMD_XIMG is not set
	18	+CONFIG_CMD_MEMINFO=y
	19	+# CONFIG_CMD_FLASH is not set
	20	+# CONFIG_CMD_LOADS is not set
	21	+CONFIG_CMD_SF=y
	22	+CONFIG_CMD_SPI=y
	23	+# CONFIG_CMD_NET is not set
	24	+CONFIG_CMD_TIME=y
	25	+CONFIG_OF_EMBED=y
	26	+CONFIG_DEFAULT_DEVICE_TREE="linkit-smart-7688"
	27	+CONFIG_ENV_IS_IN_SPI_FLASH=y
	28	+# CONFIG_DM_DEVICE_REMOVE is not set
	29	+CONFIG_HAVE_BLOCK_DEVICE=y
	30	+CONFIG_CLK=y
	31	+CONFIG_CPU=y
	32	+CONFIG_DM_GPIO=y
	33	+CONFIG_LED=y
	34	+CONFIG_LED_BLINK=y
	35	+CONFIG_LED_GPIO=y
	36	+CONFIG_SPI_FLASH=y
	37	+CONFIG_SPI_FLASH_GIGADEVICE=y
	38	+CONFIG_SPI_FLASH_MACRONIX=y
	39	+CONFIG_SPI_FLASH_SPANSION=y
	40	+CONFIG_SPI_FLASH_STMICRO=y
	41	+CONFIG_SPI_FLASH_WINBOND=y
	42	+CONFIG_SPI_FLASH_MTD=y
	43	+CONFIG_PHY=y
	44	+CONFIG_POWER_DOMAIN=y
	45	+CONFIG_RAM=y
	46	+CONFIG_DM_RESET=y
	47	+CONFIG_BAUDRATE=57600
	48	+# CONFIG_SPL_SERIAL_PRESENT is not set
	49	+CONFIG_SYS_NS16550=y
	50	+CONFIG_SPI=y
	51	+CONFIG_SYSRESET_SYSCON=y
	1	+CONFIG_MIPS=y
	2	+CONFIG_SYS_TEXT_BASE=0x9c000000
	3	+CONFIG_ARCH_MT7620=y
	4	+CONFIG_BOOT_ROM=y
	5	+CONFIG_ONBOARD_DDR2_SIZE_1024MBIT=y
	6	+CONFIG_ONBOARD_DDR2_CHIP_WIDTH_16BIT=y
	7	+# CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set
	8	+# CONFIG_MIPS_BOOT_ENV_LEGACY is not set
	9	+CONFIG_MIPS_BOOT_FDT=y
	10	+CONFIG_NR_DRAM_BANKS=1
	11	+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
	12	+CONFIG_OF_STDOUT_VIA_ALIAS=y
	13	+CONFIG_SYS_CONSOLE_INFO_QUIET=y
	14	+CONFIG_BOARD_EARLY_INIT_F=y
	15	+CONFIG_HUSH_PARSER=y
	16	+CONFIG_CMD_CPU=y
	17	+CONFIG_CMD_LICENSE=y
	18	+# CONFIG_CMD_BOOTD is not set
	19	+# CONFIG_CMD_ELF is not set
	20	+# CONFIG_CMD_XIMG is not set
	21	+# CONFIG_CMD_CRC32 is not set
	22	+CONFIG_CMD_MEMINFO=y
	23	+# CONFIG_CMD_FLASH is not set
	24	+# CONFIG_CMD_LOADS is not set
	25	+CONFIG_CMD_SF=y
	26	+CONFIG_CMD_SPI=y
	27	+# CONFIG_CMD_NET is not set
	28	+CONFIG_CMD_TIME=y
	29	+CONFIG_OF_EMBED=y
	30	+CONFIG_DEFAULT_DEVICE_TREE="linkit-smart-7688"
	31	+CONFIG_ENV_IS_IN_SPI_FLASH=y
	32	+# CONFIG_DM_DEVICE_REMOVE is not set
	33	+CONFIG_HAVE_BLOCK_DEVICE=y
	34	+CONFIG_CLK=y
	35	+CONFIG_CPU=y
	36	+CONFIG_DM_GPIO=y
	37	+CONFIG_LED=y
	38	+CONFIG_LED_BLINK=y
	39	+CONFIG_LED_GPIO=y
	40	+CONFIG_SPI_FLASH=y
	41	+CONFIG_SPI_FLASH_GIGADEVICE=y
	42	+CONFIG_SPI_FLASH_MACRONIX=y
	43	+CONFIG_SPI_FLASH_SPANSION=y
	44	+CONFIG_SPI_FLASH_STMICRO=y
	45	+CONFIG_SPI_FLASH_WINBOND=y
	46	+CONFIG_SPI_FLASH_MTD=y
	47	+CONFIG_PHY=y
	48	+CONFIG_POWER_DOMAIN=y
	49	+CONFIG_RAM=y
	50	+CONFIG_DM_RESET=y
	51	+CONFIG_BAUDRATE=57600
	52	+# CONFIG_SPL_SERIAL_PRESENT is not set
	53	+CONFIG_SYS_NS16550=y
	54	+CONFIG_SPI=y
	55	+CONFIG_SYSRESET_SYSCON=y
	1	+/* SPDX-License-Identifier: GPL-2.0+ */
	2	+/*
	3	+ * Copyright (C) 2018 Stefan Roese <sr@denx.de>
	4	+ */
	5	+
	6	+#ifndef __CONFIG_LINKIT_SMART_7688_H
	7	+#define __CONFIG_LINKIT_SMART_7688_H
	8	+
	9	+/* CPU */
	10	+#define CONFIG_SYS_MIPS_TIMER_FREQ 200000000
	11	+
	12	+/* RAM */
	13	+#define CONFIG_SYS_SDRAM_BASE 0x80000000
	14	+
	15	+#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE + 0x100000
	16	+
	17	+#define CONFIG_SYS_INIT_SP_OFFSET 0x400000
	18	+
	19	+#ifdef CONFIG_BOOT_RAM
	20	+#define CONFIG_SKIP_LOWLEVEL_INIT
	21	+#endif
	22	+
	23	+/* UART */
	24	+#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, \
	25	+ 230400, 500000, 1500000 }
	26	+
	27	+/* RAM */
	28	+#define CONFIG_SYS_MEMTEST_START 0x80100000
	29	+#define CONFIG_SYS_MEMTEST_END 0x80400000
	30	+
	31	+/* Memory usage */
	32	+#define CONFIG_SYS_MAXARGS 64
	33	+#define CONFIG_SYS_MALLOC_LEN (1024 * 1024)
	34	+#define CONFIG_SYS_BOOTPARAMS_LEN (128 * 1024)
	35	+#define CONFIG_SYS_CBSIZE 512
	36	+
	37	+/* U-Boot */
	38	+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
	39	+
	40	+/* Environment settings */
	41	+#define CONFIG_ENV_OFFSET 0x40000
	42	+#define CONFIG_ENV_SIZE (16 << 10)
	43	+#define CONFIG_ENV_SECT_SIZE (64 << 10)
	44	+
	45	+/*
	46	+ * Environment is right behind U-Boot in flash. Make sure U-Boot
	47	+ * doesn't grow into the environment area.
	48	+ */
	49	+#define CONFIG_BOARD_SIZE_LIMIT CONFIG_ENV_OFFSET
	50	+
	51	+#endif /* __CONFIG_LINKIT_SMART_7688_H */