arm: mvebu: Add Helios4 Armada 38x initial support
The helios4 is built on the SolidRun Armada 38x SOM.
The port os based on the ClearFog board, using information from
https://github.com/helios-4/u-boot-marvell as well as dtb input
from https://github.com/helios-4/linux-marvell
Signed-off-by: Dennis Gilmore <dennis@ausil.us>
Signed-off-by: Dennis Gilmore <dgilmore@redhat.com>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/kobol/helios4/MAINTAINERS b/board/kobol/helios4/MAINTAINERS
new file mode 100644
index 0000000..c9610de
--- /dev/null
+++ b/board/kobol/helios4/MAINTAINERS
@@ -0,0 +1,6 @@
+HELIOS4 BOARD
+M: Dennis Gilmore <dgilmore@redhat.com>
+S: Maintained
+F: board/kobol/helios4/
+F: include/configs/helios4.h
+F: configs/helios4_defconfig
diff --git a/board/kobol/helios4/Makefile b/board/kobol/helios4/Makefile
new file mode 100644
index 0000000..63f0796
--- /dev/null
+++ b/board/kobol/helios4/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2018 Dennis Gilmore <dgilmore@redhat.com>
+
+obj-y := helios4.o
diff --git a/board/kobol/helios4/README b/board/kobol/helios4/README
new file mode 100644
index 0000000..749f048
--- /dev/null
+++ b/board/kobol/helios4/README
@@ -0,0 +1,46 @@
+Update from original Marvell U-Boot to mainline U-Boot:
+-------------------------------------------------------
+
+Generate the U-Boot image with these commands:
+
+$ make helios4_defconfig
+$ make
+
+The resulting image including the SPL binary with the
+full DDR setup is "u-boot-spl.kwb".
+
+Now all you need to do is copy this image on a SD card.
+For example with this command:
+
+$ sudo dd if=u-boot-spl.kwb of=/dev/sdX bs=512 seek=1
+
+Please use the correct device node for your setup instead
+of "/dev/sdX" here!
+
+Boot selection:
+---------------
+
+Before powering up the board, boot selection should be done via the SW1 dip
+switch (0: OFF, 1: ON):
+
+ - SPI: 00010
+ - SD/eMMC: 00111
+ - SATA1: 11100
+ - UART: 11110
+
+Boot from UART:
+---------------
+
+Connect the on-board micro-USB (CF Pro: CON11, CF Base: CON5)
+to your host.
+
+Set the SW1 DIP switches to UART boot (see above).
+
+Run the following command to initiate U-Boot download:
+
+ ./tools/kwboot -p -b u-boot-spl.kwb /dev/ttyUSBX
+
+Use the correct UART device node for /dev/ttyUSBX.
+
+When download finishes start your favorite terminal emulator
+on /dev/ttyUSBX.
diff --git a/board/kobol/helios4/helios4.c b/board/kobol/helios4/helios4.c
new file mode 100644
index 0000000..3416783
--- /dev/null
+++ b/board/kobol/helios4/helios4.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Dennis Gilmore <dgilmore@redhat.com>
+ * based on board/solidrun/clearfog/clearfog.c
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+
+#include "../drivers/ddr/marvell/a38x/ddr3_init.h"
+#include <../serdes/a38x/high_speed_env_spec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define ETH_PHY_CTRL_REG 0
+#define ETH_PHY_CTRL_POWER_DOWN_BIT 11
+#define ETH_PHY_CTRL_POWER_DOWN_MASK BIT(ETH_PHY_CTRL_POWER_DOWN_BIT)
+
+/*
+ * Those values and defines are taken from the Marvell U-Boot version
+ * "u-boot-2013.01-15t1-helios4" as well as the upstream config for clearfog
+ */
+#define BOARD_GPP_OUT_ENA_LOW 0xffffffff
+#define BOARD_GPP_OUT_ENA_MID 0xffffffff
+
+#define BOARD_GPP_OUT_VAL_LOW 0x0
+#define BOARD_GPP_OUT_VAL_MID 0x0
+#define BOARD_GPP_POL_LOW 0x0
+#define BOARD_GPP_POL_MID 0x0
+
+/* IO expander on Marvell GP board includes e.g. fan enabling */
+struct marvell_io_exp {
+ u8 addr;
+ u8 val;
+};
+
+static struct marvell_io_exp io_exp[] = {
+ {6, 0xf9},
+ {2, 0x46}, /* Assert reset signals and enable USB3 current limiter */
+ {6, 0xb9}
+};
+
+static struct serdes_map board_serdes_map[] = {
+ {SATA0, SERDES_SPEED_6_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {USB3_HOST0, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {SATA1, SERDES_SPEED_6_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {SATA3, SERDES_SPEED_6_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {SATA2, SERDES_SPEED_6_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {USB3_HOST1, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+};
+
+int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
+{
+ *serdes_map_array = board_serdes_map;
+ *count = ARRAY_SIZE(board_serdes_map);
+ return 0;
+}
+
+/*
+ * Define the DDR layout / topology here in the board file. This will
+ * be used by the DDR3 init code in the SPL U-Boot version to configure
+ * the DDR3 controller.
+ */
+static struct mv_ddr_topology_map board_topology_map = {
+ DEBUG_LEVEL_ERROR,
+ 0x1, /* active interfaces */
+ /* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
+ { { { {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0} },
+ SPEED_BIN_DDR_1600K, /* speed_bin */
+ MV_DDR_DEV_WIDTH_16BIT, /* memory_width */
+ MV_DDR_DIE_CAP_8GBIT, /* mem_size */
+ DDR_FREQ_800, /* frequency */
+ 0, 0, /* cas_wl cas_l */
+ MV_DDR_TEMP_LOW, /* temperature */
+ MV_DDR_TIM_DEFAULT} }, /* timing */
+ BUS_MASK_32BIT_ECC, /* Busses mask */
+ MV_DDR_CFG_DEFAULT, /* ddr configuration data source */
+ { {0} }, /* raw spd data */
+ {0} /* timing parameters */
+};
+
+struct mv_ddr_topology_map *mv_ddr_topology_map_get(void)
+{
+ /* Return the board topology as defined in the board code */
+ return &board_topology_map;
+}
+
+int board_early_init_f(void)
+{
+ /* Configure MPP */
+ writel(0x11111111, MVEBU_MPP_BASE + 0x00);
+ writel(0x11111111, MVEBU_MPP_BASE + 0x04);
+ writel(0x10400011, MVEBU_MPP_BASE + 0x08);
+ writel(0x22043333, MVEBU_MPP_BASE + 0x0c);
+ writel(0x44400002, MVEBU_MPP_BASE + 0x10);
+ writel(0x41144004, MVEBU_MPP_BASE + 0x14);
+ writel(0x40333333, MVEBU_MPP_BASE + 0x18);
+ writel(0x00004444, MVEBU_MPP_BASE + 0x1c);
+
+ /* Set GPP Out value */
+ writel(BOARD_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
+ writel(BOARD_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
+
+ /* Set GPP Polarity */
+ writel(BOARD_GPP_POL_LOW, MVEBU_GPIO0_BASE + 0x0c);
+ writel(BOARD_GPP_POL_MID, MVEBU_GPIO1_BASE + 0x0c);
+
+ /* Set GPP Out Enable */
+ writel(BOARD_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
+ writel(BOARD_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
+
+ return 0;
+}
+
+int board_init(void)
+{
+ int i;
+
+ /* Address of boot parameters */
+ gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
+
+ /* Init I2C IO expanders */
+ for (i = 0; i < ARRAY_SIZE(io_exp); i++) {
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(0, io_exp[i].addr, 1, &dev);
+ if (ret) {
+ printf("Cannot find I2C: %d\n", ret);
+ return 0;
+ }
+
+ ret = dm_i2c_write(dev, io_exp[i].val, &io_exp[i].val, 1);
+ if (ret) {
+ printf("Failed to set IO expander via I2C\n");
+ return -EIO;
+ }
+ }
+
+ return 0;
+}
+
+int checkboard(void)
+{
+ puts("Board: Helios4\n");
+
+ return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ cpu_eth_init(bis); /* Built in controller(s) come first */
+ return pci_eth_init(bis);
+}
diff --git a/board/kobol/helios4/kwbimage.cfg b/board/kobol/helios4/kwbimage.cfg
new file mode 100644
index 0000000..035063b
--- /dev/null
+++ b/board/kobol/helios4/kwbimage.cfg
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2015 Stefan Roese <sr@denx.de>
+#
+
+# Armada 38x use version 1 image format
+VERSION 1
+
+# Boot Media configurations
+BOOT_FROM sdio
+
+# Binary Header (bin_hdr) with DDR3 training code
+BINARY spl/u-boot-spl-dtb.bin 0000005b 00000068