[PATCH v2 8/9] board: econet: add EN7528 board support

Add the EcoNet EN7528 board: board glue, the reference and RAM
defconfigs, and the board header.

Signed-off-by: AK Sharma <[email protected]>
---
 board/econet/en7528/MAINTAINERS    | 13 +++++++++
 board/econet/en7528/Makefile       |  2 ++
 board/econet/en7528/board.c        | 37 +++++++++++++++++++++++++
 configs/en7528_ram_defconfig       | 43 ++++++++++++++++++++++++++++++
 configs/en7528_reference_defconfig | 38 ++++++++++++++++++++++++++
 include/configs/en7528.h           |  9 +++++++
 6 files changed, 142 insertions(+)
 create mode 100644 board/econet/en7528/MAINTAINERS
 create mode 100644 board/econet/en7528/Makefile
 create mode 100644 board/econet/en7528/board.c
 create mode 100644 configs/en7528_ram_defconfig
 create mode 100644 configs/en7528_reference_defconfig
 create mode 100644 include/configs/en7528.h

diff --git a/board/econet/en7528/MAINTAINERS b/board/econet/en7528/MAINTAINERS
new file mode 100644
index 00000000..44520a14
--- /dev/null
+++ b/board/econet/en7528/MAINTAINERS
@@ -0,0 +1,13 @@
+ECONET/AIROHA EN75XX
+M:	AK Sharma <[email protected]>
+S:	Maintained
+F:	arch/mips/mach-en75xx/
+F:	arch/mips/dts/econet,en7528*
+F:	board/econet/en7528/
+F:	configs/en7528_*_defconfig
+F:	doc/board/econet/en7528.rst
+F:	doc/board/econet/index.rst
+F:	drivers/serial/serial_en75xx.c
+F:	include/configs/en7528.h
+N:	en75xx
+N:	en7528
diff --git a/board/econet/en7528/Makefile b/board/econet/en7528/Makefile
new file mode 100644
index 00000000..bcca1a9f
--- /dev/null
+++ b/board/econet/en7528/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0+
+obj-y += board.o
diff --git a/board/econet/en7528/board.c b/board/econet/en7528/board.c
new file mode 100644
index 00000000..a168f534
--- /dev/null
+++ b/board/econet/en7528/board.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <dm.h>
+#include <init.h>
+#include <asm/io.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <stdio.h>
+
+#if CONFIG_IS_ENABLED(AIROHA_ETH)
+extern U_BOOT_DRIVER(airoha_eth);
+#endif
+
+int board_init(void)
+{
+	return 0;
+}
+
+int board_late_init(void)
+{
+#if CONFIG_IS_ENABLED(AIROHA_ETH)
+	struct udevice *dev;
+	int ret;
+
+	/*
+	 * Probe the EN751221-family Ethernet parent after the console is up and
+	 * just before initr_net() enumerates UCLASS_ETH devices (mirrors the
+	 * EN7512 reference board).
+	 */
+	ret = uclass_get_device_by_driver(UCLASS_MISC,
+					  DM_DRIVER_GET(airoha_eth), &dev);
+	if (ret && ret != -ENODEV)
+		printf("EN7528 Ethernet probe failed: %d\n", ret);
+#endif
+	return 0;
+}
diff --git a/configs/en7528_ram_defconfig b/configs/en7528_ram_defconfig
new file mode 100644
index 00000000..17aa465c
--- /dev/null
+++ b/configs/en7528_ram_defconfig
@@ -0,0 +1,43 @@
+CONFIG_MIPS=y
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_SYS_MALLOC_LEN=0x100000
+CONFIG_SYS_MALLOC_F_LEN=0x10000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SIZE=0x1000
+CONFIG_DEFAULT_DEVICE_TREE="econet,en7528-ram"
+CONFIG_SYS_LOAD_ADDR=0x81800000
+CONFIG_ARCH_EN75XX=y
+CONFIG_BOARD_EN7528_RAM=y
+CONFIG_SYS_MIPS_TIMER_FREQ=200000000
+CONFIG_SYS_LITTLE_ENDIAN=y
+CONFIG_BOOTDELAY=3
+CONFIG_DISPLAY_CPUINFO=y
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_BOARD_LATE_INIT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_PROMPT="EN7528> "
+CONFIG_SYS_MAXARGS=16
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_MTD=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_EFI_PARTITION=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_CLK=y
+CONFIG_DMA=y
+CONFIG_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_DM_MDIO=y
+CONFIG_AIROHA_ETH=y
+CONFIG_PHY=y
+CONFIG_NOP_PHY=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_AIROHA_SNFI_SPI=y
+CONFIG_LZMA=y
diff --git a/configs/en7528_reference_defconfig b/configs/en7528_reference_defconfig
new file mode 100644
index 00000000..4b85a7dd
--- /dev/null
+++ b/configs/en7528_reference_defconfig
@@ -0,0 +1,38 @@
+CONFIG_MIPS=y
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_SYS_MALLOC_LEN=0x100000
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SIZE=0x1000
+CONFIG_DEFAULT_DEVICE_TREE="econet,en7528-reference"
+CONFIG_SPL_SYS_MALLOC_F_LEN=0x10000
+CONFIG_SPL_SERIAL=y
+CONFIG_TPL_SYS_MALLOC_F_LEN=0x1000
+CONFIG_SPL_BSS_START_ADDR=0x80080000
+CONFIG_SPL_BSS_MAX_SIZE=0x10000
+CONFIG_SYS_LOAD_ADDR=0x81800000
+CONFIG_SPL=y
+CONFIG_ARCH_EN75XX=y
+CONFIG_BOARD_EN7528_REFERENCE=y
+CONFIG_SYS_MIPS_TIMER_FREQ=150000000
+CONFIG_MIPS_CACHE_SETUP=y
+CONFIG_MIPS_CACHE_DISABLE=y
+CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
+CONFIG_MIPS_BOOT_FDT=y
+CONFIG_SYS_LITTLE_ENDIAN=y
+CONFIG_FIT=y
+CONFIG_BOOTDELAY=3
+CONFIG_DISPLAY_CPUINFO=y
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_SPL_MAX_SIZE=0x30000
+CONFIG_SPL_SYS_MALLOC_SIMPLE=y
+CONFIG_TPL=y
+# CONFIG_TPL_FRAMEWORK is not set
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_PROMPT="EN7528> "
+CONFIG_SYS_MAXARGS=8
+CONFIG_CMD_MEMINFO=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_SPL_DM=y
diff --git a/include/configs/en7528.h b/include/configs/en7528.h
new file mode 100644
index 00000000..b8dc2410
--- /dev/null
+++ b/include/configs/en7528.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+#ifndef __CONFIG_EN7528_H
+#define __CONFIG_EN7528_H
+
+#define CFG_SYS_SDRAM_BASE	0x80000000
+/* Above FIT scratch (0x82000000) and kernel load (0x80020000, up to ~32 MiB). */
+#define CFG_SYS_INIT_SP_OFFSET	0x04000000
+
+#endif
-- 
2.53.0