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authorStefan Roese <sr@denx.de>2016-05-17 15:04:16 +0200
committerStefan Roese <sr@denx.de>2016-09-27 17:29:53 +0200
commit01e62c7f11eb4c1fe814f109ecb34e1a176eb33b (patch)
treebf31d15fc86671543dbf738c74bab0bdd9f54cb5 /board
parentf61aefc150a30347db2d8aa2427b57d1c78e4357 (diff)
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arm64: mvebu: Add Armada 3700 db-88f3720 development board support
This patch adds basic support for the Marvell Armada 3700 DB-88F3720 development board. Supported are the following interfaces: - UART - SPI (incl. SPI NOR) - I2C - Ethernet Signed-off-by: Stefan Roese <sr@denx.de> Cc: Nadav Haklai <nadavh@marvell.com> Cc: Kostya Porotchkin <kostap@marvell.com> Cc: Wilson Ding <dingwei@marvell.com> Cc: Victor Gu <xigu@marvell.com> Cc: Hua Jing <jinghua@marvell.com> Cc: Terry Zhou <bjzhou@marvell.com> Cc: Hanna Hawa <hannah@marvell.com> Cc: Haim Boot <hayim@marvell.com>
Diffstat (limited to 'board')
-rw-r--r--board/Marvell/mvebu_db-88f3720/MAINTAINERS6
-rw-r--r--board/Marvell/mvebu_db-88f3720/Makefile7
-rw-r--r--board/Marvell/mvebu_db-88f3720/board.c134
3 files changed, 147 insertions, 0 deletions
diff --git a/board/Marvell/mvebu_db-88f3720/MAINTAINERS b/board/Marvell/mvebu_db-88f3720/MAINTAINERS
new file mode 100644
index 0000000..4e80917
--- /dev/null
+++ b/board/Marvell/mvebu_db-88f3720/MAINTAINERS
@@ -0,0 +1,6 @@
+MVEBU_DB_88F3720 BOARD
+M: Stefan Roese <sr@denx.de>
+S: Maintained
+F: board/Marvell/mvebu_db-88f3720/
+F: include/configs/mvebu_db-88f3720.h
+F: configs/mvebu_db-88f3720_defconfig
diff --git a/board/Marvell/mvebu_db-88f3720/Makefile b/board/Marvell/mvebu_db-88f3720/Makefile
new file mode 100644
index 0000000..ed39738
--- /dev/null
+++ b/board/Marvell/mvebu_db-88f3720/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2016 Stefan Roese <sr@denx.de>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y := board.o
diff --git a/board/Marvell/mvebu_db-88f3720/board.c b/board/Marvell/mvebu_db-88f3720/board.c
new file mode 100644
index 0000000..edf88c7
--- /dev/null
+++ b/board/Marvell/mvebu_db-88f3720/board.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2016 Stefan Roese <sr@denx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <asm/io.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* IO expander I2C device */
+#define I2C_IO_EXP_ADDR 0x22
+#define I2C_IO_CFG_REG_0 0x6
+#define I2C_IO_DATA_OUT_REG_0 0x2
+#define I2C_IO_REG_0_SATA_OFF 2
+#define I2C_IO_REG_0_USB_H_OFF 1
+
+int board_early_init_f(void)
+{
+ /* Nothing to do (yet), perhaps later some pin-muxing etc */
+
+ return 0;
+}
+
+int board_init(void)
+{
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+ return 0;
+}
+
+/* Board specific AHCI / SATA enable code */
+int board_ahci_enable(void)
+{
+ struct udevice *dev;
+ int ret;
+ u8 buf[8];
+
+ /* Configure IO exander PCA9555: 7bit address 0x22 */
+ ret = i2c_get_chip_for_busnum(0, I2C_IO_EXP_ADDR, 1, &dev);
+ if (ret) {
+ printf("Cannot find PCA9555: %d\n", ret);
+ return 0;
+ }
+
+ ret = dm_i2c_read(dev, I2C_IO_CFG_REG_0, buf, 1);
+ if (ret) {
+ printf("Failed to read IO expander value via I2C\n");
+ return -EIO;
+ }
+
+ /*
+ * Enable SATA power via IO expander connected via I2C by setting
+ * the corresponding bit to output mode to enable power for SATA
+ */
+ buf[0] &= ~(1 << I2C_IO_REG_0_SATA_OFF);
+ ret = dm_i2c_write(dev, I2C_IO_CFG_REG_0, buf, 1);
+ if (ret) {
+ printf("Failed to set IO expander via I2C\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/* Board specific xHCI enable code */
+int board_xhci_enable(void)
+{
+ struct udevice *dev;
+ int ret;
+ u8 buf[8];
+
+ /* Configure IO exander PCA9555: 7bit address 0x22 */
+ ret = i2c_get_chip_for_busnum(0, I2C_IO_EXP_ADDR, 1, &dev);
+ if (ret) {
+ printf("Cannot find PCA9555: %d\n", ret);
+ return 0;
+ }
+
+ printf("Enable USB VBUS\n");
+
+ /*
+ * Read configuration (direction) and set VBUS pin as output
+ * (reset pin = output)
+ */
+ ret = dm_i2c_read(dev, I2C_IO_CFG_REG_0, buf, 1);
+ if (ret) {
+ printf("Failed to read IO expander value via I2C\n");
+ return -EIO;
+ }
+ buf[0] &= ~(1 << I2C_IO_REG_0_USB_H_OFF);
+ ret = dm_i2c_write(dev, I2C_IO_CFG_REG_0, buf, 1);
+ if (ret) {
+ printf("Failed to set IO expander via I2C\n");
+ return -EIO;
+ }
+
+ /* Read VBUS output value and disable it */
+ ret = dm_i2c_read(dev, I2C_IO_DATA_OUT_REG_0, buf, 1);
+ if (ret) {
+ printf("Failed to read IO expander value via I2C\n");
+ return -EIO;
+ }
+ buf[0] &= ~(1 << I2C_IO_REG_0_USB_H_OFF);
+ ret = dm_i2c_write(dev, I2C_IO_DATA_OUT_REG_0, buf, 1);
+ if (ret) {
+ printf("Failed to set IO expander via I2C\n");
+ return -EIO;
+ }
+
+ /*
+ * Required delay for configuration to settle - must wait for
+ * power on port is disabled in case VBUS signal was high,
+ * required 3 seconds delay to let VBUS signal fully settle down
+ */
+ mdelay(3000);
+
+ /* Enable VBUS power: Set output value of VBUS pin as enabled */
+ buf[0] |= (1 << I2C_IO_REG_0_USB_H_OFF);
+ ret = dm_i2c_write(dev, I2C_IO_DATA_OUT_REG_0, buf, 1);
+ if (ret) {
+ printf("Failed to set IO expander via I2C\n");
+ return -EIO;
+ }
+
+ mdelay(500); /* required delay to let output value settle */
+
+ return 0;
+}