MSCC: Add board support for Serval SoC family.

Add board support and configuration for Jaguar2 SoC family.
The detection of the board type is based on the phy ids.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

arch/mips/dts/Makefile

@@ -21,6 +21,7 @@ dtb-$(CONFIG_SOC_LUTON) += luton_pcb090.dtb luton_pcb091.dtb
 dtb-$(CONFIG_SOC_OCELOT) += ocelot_pcb120.dtb ocelot_pcb123.dtb
 dtb-$(CONFIG_SOC_JR2) += jr2_pcb110.dtb jr2_pcb111.dtb serval2_pcb112.dtb
 dtb-$(CONFIG_SOC_SERVALT) += servalt_pcb116.dtb
+dtb-$(CONFIG_SOC_SERVAL) += serval_pcb105.dtb serval_pcb106.dtb
 
 targets += $(dtb-y)
 

arch/mips/mach-mscc/Makefile

@@ -5,3 +5,4 @@ CFLAGS_cpu.o += -finline-limit=64000
 obj-y += cpu.o dram.o reset.o phy.o lowlevel_init.o
 obj-$(CONFIG_SOC_LUTON) += lowlevel_init_luton.o gpio.o
 obj-$(CONFIG_SOC_OCELOT) += gpio.o
+obj-$(CONFIG_SOC_SERVAL) += gpio.o

board/mscc/serval/Kconfig

@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+config SYS_VENDOR
+	default "mscc"
+
+if SOC_SERVAL
+
+config SYS_BOARD
+	default "serval"
+
+config SYS_CONFIG_NAME
+	default "serval"
+
+endif

board/mscc/serval/Makefile

@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+obj-$(CONFIG_SOC_SERVAL)	:= serval.o

board/mscc/serval/serval.c

@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2018 Microsemi Corporation
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <led.h>
+
+enum {
+	BOARD_TYPE_PCB106 = 0xAABBCD00,
+	BOARD_TYPE_PCB105,
+};
+
+int board_early_init_r(void)
+{
+	/* Prepare SPI controller to be used in master mode */
+	writel(0, BASE_CFG + ICPU_SW_MODE);
+
+	/* Address of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE;
+
+	/* LED setup */
+	if (IS_ENABLED(CONFIG_LED))
+		led_default_state();
+
+	return 0;
+}
+
+static void do_board_detect(void)
+{
+	u16 gpio_in_reg;
+
+	/* Set MDIO and MDC */
+	mscc_gpio_set_alternate(9, 2);
+	mscc_gpio_set_alternate(10, 2);
+
+	/* Set GPIO page */
+	mscc_phy_wr(1, 16, 31, 0x10);
+	if (!mscc_phy_rd(1, 16, 15, &gpio_in_reg)) {
+		if (gpio_in_reg & 0x200)
+			gd->board_type = BOARD_TYPE_PCB106;
+		else
+			gd->board_type = BOARD_TYPE_PCB105;
+		mscc_phy_wr(1, 16, 15, 0);
+	} else {
+		gd->board_type = BOARD_TYPE_PCB105;
+	}
+}
+
+#if defined(CONFIG_MULTI_DTB_FIT)
+int board_fit_config_name_match(const char *name)
+{
+	if (gd->board_type == BOARD_TYPE_PCB106 &&
+	    strcmp(name, "serval_pcb106") == 0)
+		return 0;
+
+	if (gd->board_type == BOARD_TYPE_PCB105 &&
+	    strcmp(name, "serval_pcb105") == 0)
+		return 0;
+
+	return -1;
+}
+#endif
+
+#if defined(CONFIG_DTB_RESELECT)
+int embedded_dtb_select(void)
+{
+	do_board_detect();
+	fdtdec_setup();
+
+	return 0;
+}
+#endif

configs/mscc_serval_defconfig

@@ -0,0 +1,62 @@
+CONFIG_MIPS=y
+CONFIG_SYS_TEXT_BASE=0x40000000
+CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_ARCH_MSCC=y
+CONFIG_SOC_SERVAL=y
+CONFIG_DDRTYPE_H5TQ1G63BFA=y
+CONFIG_SYS_LITTLE_ENDIAN=y
+CONFIG_FIT=y
+CONFIG_BOOTDELAY=3
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="console=ttyS0,115200"
+CONFIG_LOGLEVEL=7
+CONFIG_DISPLAY_CPUINFO=y
+CONFIG_SYS_PROMPT="serval # "
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_CONSOLE is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_CRC32 is not set
+CONFIG_CMD_MD5SUM=y
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_MEMTEST=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+# CONFIG_CMD_NFS is not set
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTDIDS_DEFAULT="nor0=spi_flash"
+CONFIG_MTDPARTS_DEFAULT="mtdparts=spi_flash:1m(UBoot),256k(Env),256k(Env.bk)"
+# CONFIG_ISO_PARTITION is not set
+CONFIG_DEFAULT_DEVICE_TREE="serval_pcb106"
+CONFIG_OF_LIST="serval_pcb106 serval_pcb105"
+CONFIG_DTB_RESELECT=y
+CONFIG_MULTI_DTB_FIT=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_CLK=y
+CONFIG_DM_GPIO=y
+CONFIG_MSCC_SGPIO=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_BAR=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_DM_ETH=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_DM_SERIAL=y
+CONFIG_SYS_NS16550=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_MSCC_BB_SPI=y
+CONFIG_LZMA=y
+CONFIG_XZ=y