warp7: Add initial support

Add the basic support for Warp7 board.

For more information about this reference design, please visit:

https://www.element14.com/community/docs/DOC-79058/l/warp-7-the-next-generation-wearable-reference-platform

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>

5 files changed, 218 insertions, 0 deletions

diff --git a/board/warp7/Kconfig b/board/warp7/Kconfig
new file mode 100644
index 0000000..61c33fb
--- /dev/null
+++ b/board/warp7/Kconfig
@@ -0,0 +1,9 @@
+if TARGET_WARP7
+
+config SYS_BOARD
+	default "warp7"
+
+config SYS_CONFIG_NAME
+	default "warp7"
+
+endif
diff --git a/board/warp7/MAINTAINERS b/board/warp7/MAINTAINERS
new file mode 100644
index 0000000..1d3ee29
--- /dev/null
+++ b/board/warp7/MAINTAINERS
@@ -0,0 +1,6 @@
+WARP7 BOARD
+M:	Fabio Estevam <fabio.estevam@nxp.com>
+S:	Maintained
+F:	board/warp7/
+F:	include/configs/warp7.h
+F:	configs/warp7_defconfig
diff --git a/board/warp7/Makefile b/board/warp7/Makefile
new file mode 100644
index 0000000..f39d1d8
--- /dev/null
+++ b/board/warp7/Makefile
@@ -0,0 +1,6 @@
+# (C) Copyright 2016 NXP Semiconductors
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y  := warp7.o
diff --git a/board/warp7/imximage.cfg b/board/warp7/imximage.cfg
new file mode 100644
index 0000000..e7b6d30
--- /dev/null
+++ b/board/warp7/imximage.cfg
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2016 NXP Semiconductors
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ *
+ * Refer docs/README.imxmage for more details about how-to configure
+ * and create imximage boot image
+ *
+ * The syntax is taken as close as possible with the kwbimage
+ */
+
+#define __ASSEMBLY__
+#include <config.h>
+
+IMAGE_VERSION	2
+BOOT_FROM	sd
+
+/*
+ * Device Configuration Data (DCD)
+ *
+ * Each entry must have the format:
+ * Addr-type           Address        Value
+ *
+ * where:
+ *	Addr-type register length (1,2 or 4 bytes)
+ *	Address	  absolute address of the register
+ *	value	  value to be stored in the register
+ */
+
+DATA 4 0x30340004 0x4F400005
+
+DATA 4 0x30391000 0x00000002
+DATA 4 0x307a0000 0x03040008
+DATA 4 0x307a0064 0x00200038
+DATA 4 0x307a0490 0x00000001
+DATA 4 0x307a00d0 0x00350001
+DATA 4 0x307a00dc 0x00c3000a
+DATA 4 0x307a00e0 0x00010000
+DATA 4 0x307a00e4 0x00110006
+DATA 4 0x307a00f4 0x0000033f
+DATA 4 0x307a0100 0x0a0e110b
+DATA 4 0x307a0104 0x00020211
+DATA 4 0x307a0108 0x03060708
+DATA 4 0x307a010c 0x00a0500c
+DATA 4 0x307a0110 0x05020307
+DATA 4 0x307a0114 0x02020404
+DATA 4 0x307a0118 0x02020003
+DATA 4 0x307a011c 0x00000202
+DATA 4 0x307a0120 0x00000202
+
+DATA 4 0x307a0180 0x00600018
+DATA 4 0x307a0184 0x00e00100
+DATA 4 0x307a0190 0x02098205
+DATA 4 0x307a0194 0x00060303
+DATA 4 0x307a01a0 0x80400003
+DATA 4 0x307a01a4 0x00100020
+DATA 4 0x307a01a8 0x80100004
+
+DATA 4 0x307a0200 0x00000015
+DATA 4 0x307a0204 0x00161616
+DATA 4 0x307a0210 0x00000f0f
+DATA 4 0x307a0214 0x04040404
+DATA 4 0x307a0218 0x0f0f0404
+
+DATA 4 0x307a0240 0x06000600
+DATA 4 0x307a0244 0x00000000
+DATA 4 0x30391000 0x00000000
+DATA 4 0x30790000 0x17421e40
+DATA 4 0x30790004 0x10210100
+DATA 4 0x30790008 0x00010000
+DATA 4 0x30790010 0x0007080c
+DATA 4 0x307900b0 0x1010007e
+
+DATA 4 0x3079001C 0x01010000
+DATA 4 0x3079009c 0x00000d6e
+
+DATA 4 0x30790030 0x06060606
+DATA 4 0x30790020 0x0a0a0a0a
+DATA 4 0x30790050 0x01000008
+DATA 4 0x30790050 0x00000008
+DATA 4 0x30790018 0x0000000f
+DATA 4 0x307900c0 0x0e487304
+DATA 4 0x307900c0 0x0e4c7304
+DATA 4 0x307900c0 0x0e4c7306
+DATA 4 0x307900c0 0x0e4c7304
+
+CHECK_BITS_SET 4 0x307900c4 0x1
+
+DATA 4 0x307900c0 0x0e487304
+
+DATA 4 0x30384130 0x00000000
+DATA 4 0x30340020 0x00000178
+DATA 4 0x30384130 0x00000002
+
+CHECK_BITS_SET 4 0x307a0004 0x1
diff --git a/board/warp7/warp7.c b/board/warp7/warp7.c
new file mode 100644
index 0000000..8c5bf9a
--- /dev/null
+++ b/board/warp7/warp7.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2016 NXP Semiconductors
+ * Author: Fabio Estevam <fabio.estevam@nxp.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/mx7-pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/io.h>
+#include <common.h>
+#include <fsl_esdhc.h>
+#include <mmc.h>
+#include <asm/arch/crm_regs.h>
+#include <usb.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU100KOHM | \
+			PAD_CTL_HYS)
+#define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW |	\
+			PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
+
+int dram_init(void)
+{
+	gd->ram_size = PHYS_SDRAM_SIZE;
+
+	return 0;
+}
+
+static iomux_v3_cfg_t const uart1_pads[] = {
+	MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const usdhc3_pads[] = {
+	MX7D_PAD_SD3_CLK__SD3_CLK     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_CMD__SD3_CMD     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_RESET_B__SD3_RESET_B | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+};
+
+static struct fsl_esdhc_cfg usdhc_cfg[1] = {
+	{USDHC3_BASE_ADDR},
+};
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+		/* Assume uSDHC3 emmc is always present */
+		return 1;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+
+	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
+}
+
+int board_early_init_f(void)
+{
+	setup_iomux_uart();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	puts("Board: WARP7\n");
+
+	return 0;
+}
+
+int board_usb_phy_mode(int port)
+{
+	return USB_INIT_DEVICE;
+}