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authorAhmad Fatoum <a.fatoum@pengutronix.de>2019-09-12 08:54:11 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2019-09-17 11:47:54 +0200
commit0f180e814341faa27a6887aa364a10858ebb9b56 (patch)
treef29dbe717a465e25c7f44dd5717be8dadec70e26
parent3769e0fa7b5de004e59bf86035b780f97f26abad (diff)
downloadbarebox-0f180e814341faa27a6887aa364a10858ebb9b56.tar.gz
ARM: imx6: add Embest MarSBoard support
This board is produced by Embest/Element 14 and is based on i.MX6 Dual. For more informations on this board : http://www.embest-tech.com/shop/star/marsboard.html Signed-off-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Tested-by: Stefan Lengfeld <contact@stefanchrist.eu> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--Documentation/boards/imx/embest-marsboard.rst82
-rw-r--r--arch/arm/boards/Makefile1
-rw-r--r--arch/arm/boards/embest-marsboard/Makefile3
-rw-r--r--arch/arm/boards/embest-marsboard/board.c63
-rw-r--r--arch/arm/boards/embest-marsboard/defaultenv-mars/init/fastboot7
-rw-r--r--arch/arm/boards/embest-marsboard/flash-header-embest-marsboard.imxcfg99
-rw-r--r--arch/arm/boards/embest-marsboard/lowlevel.c41
-rw-r--r--arch/arm/dts/Makefile1
-rw-r--r--arch/arm/dts/imx6q-marsboard.dts43
-rw-r--r--arch/arm/mach-imx/Kconfig5
-rw-r--r--images/Makefile.imx5
11 files changed, 350 insertions, 0 deletions
diff --git a/Documentation/boards/imx/embest-marsboard.rst b/Documentation/boards/imx/embest-marsboard.rst
new file mode 100644
index 0000000..bdaa088
--- /dev/null
+++ b/Documentation/boards/imx/embest-marsboard.rst
@@ -0,0 +1,82 @@
+Embest MarS Board
+=================
+
+Board comes with:
+
+* 1G DDR3 SDRAM
+* 4G eMMC
+* 2M SPI-NOR Flash
+
+Layout::
+
+ .-----------------------------------------------------.
+ |O OTG-->| V | O|
+ | SW1 USB '---' .--|
+ | .-----------. v.---. .->| <|
+ | | | 1|o--| O | `--|
+ | | i.MX6Dual | 2|--o| N Debug |
+ | | SoC | `---' USB |
+ | | | |
+ | `-----------' |
+ | |
+ | |
+ | |
+ | |
+ |O O|
+ `-----------------------------------------------------'
+
+Boot Configuration
+==================
+
+DIP Switch ``SW1`` on the board can be used to set ``BOOT_MODE1`` and
+``BOOT_MODE0`` going to the i.MX6:
+
+Set ``SW1 = 01`` for serial boot::
+
+ SW1
+ v.---.
+ 1|o--| O
+ 2|--o| N
+ `---'
+
+Set ``SW1 = 10`` for internal (SPI-NOR Flash) boot::
+
+ SW1
+ v.---.
+ 1|--o| O
+ 2|o--| N
+ `---'
+
+Set ``SW1 = 00`` for boot from eFuses::
+
+ SW1
+ v.---.
+ 1|o--| O
+ 2|o--| N
+ `---'
+
+Flashing barebox
+----------------
+
+ 1. Connect to the board's Debug Mini-USB (115200 8N1)
+
+ 2. Set ``SW1 = 01`` for serial boot mode (see above)
+
+ 3. Turn board's power on
+
+ 4. Upload barebox image to the board via imx-usb-loader
+
+.. code-block:: none
+
+ host$ imx-usb-loader images/barebox-embest-imx6q-marsboard.img
+..
+
+ 4. Flash barebox to SPI-NOR Flash via Android Fastboot
+
+.. code-block:: none
+
+ host$ fastboot flash bbu-spiflash images/barebox-embest-imx6q-marsboard.img
+
+..
+
+ 5. Restore ``SW1 = 10`` for internal (SPI-NOR) boot (see above)
diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index a814ab8..10cd0c4 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_MACH_EDB9315A) += edb93xx/
obj-$(CONFIG_MACH_EDB9315) += edb93xx/
obj-$(CONFIG_MACH_EFIKA_MX_SMARTBOOK) += efika-mx-smartbook/
obj-$(CONFIG_MACH_EMBEDSKY_E9) += embedsky-e9/
+obj-$(CONFIG_MACH_EMBEST_MARSBOARD) += embest-marsboard/
obj-$(CONFIG_MACH_EMBEST_RIOTBOARD) += embest-riotboard/
obj-$(CONFIG_MACH_EUKREA_CPUIMX25) += eukrea_cpuimx25/
obj-$(CONFIG_MACH_EUKREA_CPUIMX27) += eukrea_cpuimx27/
diff --git a/arch/arm/boards/embest-marsboard/Makefile b/arch/arm/boards/embest-marsboard/Makefile
new file mode 100644
index 0000000..ef52194
--- /dev/null
+++ b/arch/arm/boards/embest-marsboard/Makefile
@@ -0,0 +1,3 @@
+obj-y += board.o
+lwl-y += lowlevel.o
+bbenv-y += defaultenv-mars
diff --git a/arch/arm/boards/embest-marsboard/board.c b/arch/arm/boards/embest-marsboard/board.c
new file mode 100644
index 0000000..6689343
--- /dev/null
+++ b/arch/arm/boards/embest-marsboard/board.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2013 Lucas Stach <l.stach@pengutronix.de>
+ * Copyright (C) 2014 Eric Bénard <eric@eukrea.com>
+ * Copyright (C) 2019 Ahmad Fatoum <a.fatoum@pengutronix.de>
+ */
+
+#include <common.h>
+#include <init.h>
+#include <envfs.h>
+#include <mach/bbu.h>
+#include <linux/phy.h>
+
+static int ar8035_phy_fixup(struct phy_device *dev)
+{
+ u16 val;
+
+ /* Ar803x phy SmartEEE feature cause link status generates glitch,
+ * which cause ethernet link down/up issue, so disable SmartEEE
+ */
+ phy_write(dev, 0xd, 0x3);
+ phy_write(dev, 0xe, 0x805d);
+ phy_write(dev, 0xd, 0x4003);
+
+ val = phy_read(dev, 0xe);
+ phy_write(dev, 0xe, val & ~(1 << 8));
+
+ /* To enable AR8031 ouput a 125MHz clk from CLK_25M */
+ phy_write(dev, 0xd, 0x7);
+ phy_write(dev, 0xe, 0x8016);
+ phy_write(dev, 0xd, 0x4007);
+
+ val = phy_read(dev, 0xe);
+ val &= 0xffe3;
+ val |= 0x18;
+ phy_write(dev, 0xe, val);
+
+ /* introduce tx clock delay */
+ phy_write(dev, 0x1d, 0x5);
+ val = phy_read(dev, 0x1e);
+ val |= 0x0100;
+ phy_write(dev, 0x1e, val);
+
+ return 0;
+}
+
+static int marsboard_device_init(void)
+{
+ if (!of_machine_is_compatible("embest,imx6q-marsboard"))
+ return 0;
+
+ barebox_set_hostname("marsboard");
+
+ phy_register_fixup_for_uid(0x004dd072, 0xffffffef, ar8035_phy_fixup);
+
+ imx6_bbu_internal_spi_i2c_register_handler("spiflash",
+ "/dev/m25p0.barebox", BBU_HANDLER_FLAG_DEFAULT);
+
+ defaultenv_append_directory(defaultenv_mars);
+
+ return 0;
+}
+device_initcall(marsboard_device_init);
diff --git a/arch/arm/boards/embest-marsboard/defaultenv-mars/init/fastboot b/arch/arm/boards/embest-marsboard/defaultenv-mars/init/fastboot
new file mode 100644
index 0000000..9c784fb
--- /dev/null
+++ b/arch/arm/boards/embest-marsboard/defaultenv-mars/init/fastboot
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+if [ "$bootsource" != "serial" ]; then
+ exit 0
+fi
+
+usbgadget -a -A "" -b
diff --git a/arch/arm/boards/embest-marsboard/flash-header-embest-marsboard.imxcfg b/arch/arm/boards/embest-marsboard/flash-header-embest-marsboard.imxcfg
new file mode 100644
index 0000000..bdaf60c
--- /dev/null
+++ b/arch/arm/boards/embest-marsboard/flash-header-embest-marsboard.imxcfg
@@ -0,0 +1,99 @@
+soc imx6
+loadaddr 0x20000000
+dcdofs 0x400
+
+wm 32 0x020e05a8 0x00000030
+wm 32 0x020e05b0 0x00000030
+wm 32 0x020e0524 0x00000030
+wm 32 0x020e051c 0x00000030
+wm 32 0x020e0518 0x00000030
+wm 32 0x020e050c 0x00000030
+wm 32 0x020e05b8 0x00000030
+wm 32 0x020e05c0 0x00000030
+wm 32 0x020e05ac 0x00020030
+wm 32 0x020e05b4 0x00020030
+wm 32 0x020e0528 0x00020030
+wm 32 0x020e0520 0x00020030
+wm 32 0x020e0514 0x00020030
+wm 32 0x020e0510 0x00020030
+wm 32 0x020e05bc 0x00020030
+wm 32 0x020e05c4 0x00020030
+wm 32 0x020e056c 0x00020030
+wm 32 0x020e0578 0x00020030
+wm 32 0x020e0588 0x00020030
+wm 32 0x020e0594 0x00020030
+wm 32 0x020e057c 0x00020030
+wm 32 0x020e0590 0x00003000
+wm 32 0x020e0598 0x00003000
+wm 32 0x020e058c 0x00000000
+wm 32 0x020e059c 0x00003030
+wm 32 0x020e05a0 0x00003030
+wm 32 0x020e0784 0x00000030
+wm 32 0x020e0788 0x00000030
+wm 32 0x020e0794 0x00000030
+wm 32 0x020e079c 0x00000030
+wm 32 0x020e07a0 0x00000030
+wm 32 0x020e07a4 0x00000030
+wm 32 0x020e07a8 0x00000030
+wm 32 0x020e0748 0x00000030
+wm 32 0x020e074c 0x00000030
+wm 32 0x020e0750 0x00020000
+wm 32 0x020e0758 0x00000000
+wm 32 0x020e0774 0x00020000
+wm 32 0x020e078c 0x00000030
+wm 32 0x020e0798 0x000c0000
+wm 32 0x021b081c 0x33333333
+wm 32 0x021b0820 0x33333333
+wm 32 0x021b0824 0x33333333
+wm 32 0x021b0828 0x33333333
+wm 32 0x021b481c 0x33333333
+wm 32 0x021b4820 0x33333333
+wm 32 0x021b4824 0x33333333
+wm 32 0x021b4828 0x33333333
+wm 32 0x021b0018 0x00081740
+wm 32 0x021b001c 0x00008000
+wm 32 0x021b000c 0x555a7975
+wm 32 0x021b0010 0xff538e64
+wm 32 0x021b0014 0x01ff00db
+wm 32 0x021b002c 0x000026d2
+wm 32 0x021b0030 0x005b0e21
+wm 32 0x021b0008 0x09444040
+wm 32 0x021b0004 0x00025576
+wm 32 0x021b0040 0x00000027
+wm 32 0x021b0000 0x831a0000
+wm 32 0x021b001c 0x04088032
+wm 32 0x021b001c 0x0408803a
+wm 32 0x021b001c 0x00008033
+wm 32 0x021b001c 0x0000803b
+wm 32 0x021b001c 0x00428031
+wm 32 0x021b001c 0x00428039
+wm 32 0x021b001c 0x09408030
+wm 32 0x021b001c 0x09408038
+wm 32 0x021b001c 0x04008040
+wm 32 0x021b001c 0x04008048
+wm 32 0x021b0800 0xa1380003
+wm 32 0x021b4800 0xa1380003
+wm 32 0x021b0020 0x00005800
+wm 32 0x021b0818 0x00022227
+wm 32 0x021b4818 0x00022227
+wm 32 0x021b083c 0x434b0350
+wm 32 0x021b0840 0x034c0359
+wm 32 0x021b483c 0x434b0350
+wm 32 0x021b4840 0x03650348
+wm 32 0x021b0848 0x4436383b
+wm 32 0x021b4848 0x39393341
+wm 32 0x021b0850 0x35373933
+wm 32 0x021b4850 0x48254A36
+wm 32 0x021b080c 0x001f001f
+wm 32 0x021b0810 0x001f001f
+wm 32 0x021b480c 0x00440044
+wm 32 0x021b4810 0x00440044
+wm 32 0x021b08b8 0x00000800
+wm 32 0x021b48b8 0x00000800
+wm 32 0x021b001c 0x00000000
+wm 32 0x021b0404 0x00011006
+wm 32 0x020c4068 0x00c03f3f
+wm 32 0x020c406c 0x0030fc03
+wm 32 0x020c4070 0x0fffc000
+wm 32 0x020c4074 0x3ff00000
+wm 32 0x020c4078 0x00fff300
diff --git a/arch/arm/boards/embest-marsboard/lowlevel.c b/arch/arm/boards/embest-marsboard/lowlevel.c
new file mode 100644
index 0000000..9e20a2e
--- /dev/null
+++ b/arch/arm/boards/embest-marsboard/lowlevel.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Ahmad Fatoum - Pengutronix
+ */
+
+#include <common.h>
+#include <io.h>
+#include <asm/barebox-arm.h>
+#include <mach/imx6.h>
+#include <mach/esdctl.h>
+#include <mach/iomux-mx6.h>
+#include <debug_ll.h>
+
+static inline void setup_uart(void)
+{
+ void __iomem *iomuxbase = IOMEM(MX6_IOMUXC_BASE_ADDR);
+
+ imx6_ungate_all_peripherals();
+
+ imx_setup_pad(iomuxbase, MX6Q_PAD_EIM_D26__UART2_TXD);
+
+ imx6_uart_setup_ll();
+
+ putc_ll('>');
+}
+
+extern char __dtb_z_imx6q_marsboard_start[];
+
+ENTRY_FUNCTION(start_imx6q_marsboard, r0, r1, r2)
+{
+ void *fdt;
+
+ imx6_cpu_lowlevel_init();
+
+ if (IS_ENABLED(CONFIG_DEBUG_LL))
+ setup_uart();
+
+ fdt = __dtb_z_imx6q_marsboard_start + get_runtime_offset();
+
+ imx6q_barebox_entry(fdt);
+}
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index f33e6a4..27d14f8 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -16,6 +16,7 @@ pbl-dtb-$(CONFIG_MACH_DUCKBILL) += imx28-duckbill.dtb.o
pbl-dtb-$(CONFIG_MACH_KINDLE_MX50) += imx50-kindle-d01100.dtb.o imx50-kindle-d01200.dtb.o imx50-kindle-ey21.dtb.o
pbl-dtb-$(CONFIG_MACH_EFIKA_MX_SMARTBOOK) += imx51-genesi-efika-sb.dtb.o
pbl-dtb-$(CONFIG_MACH_ELTEC_HIPERCAM) += imx6dl-eltec-hipercam.dtb.o
+pbl-dtb-$(CONFIG_MACH_EMBEST_MARSBOARD) += imx6q-marsboard.dtb.o
pbl-dtb-$(CONFIG_MACH_EMBEST_RIOTBOARD) += imx6s-riotboard.dtb.o
pbl-dtb-$(CONFIG_MACH_EMBEDSKY_E9) += imx6q-embedsky-e9.dtb.o
pbl-dtb-$(CONFIG_MACH_FREESCALE_MX51_PDK) += imx51-babbage.dtb.o
diff --git a/arch/arm/dts/imx6q-marsboard.dts b/arch/arm/dts/imx6q-marsboard.dts
new file mode 100644
index 0000000..1d9f8f0
--- /dev/null
+++ b/arch/arm/dts/imx6q-marsboard.dts
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0 OR X11
+/*
+ * Copyright (C) 2019 Ahmad Fatoum - Pengutronix
+ */
+
+#include <arm/imx6q-marsboard.dts>
+#include "imx6q.dtsi"
+
+/ {
+ chosen {
+ stdout-path = &uart2;
+
+ environment {
+ compatible = "barebox,environment";
+ device-path = &environment_spinor;
+ };
+ };
+};
+
+&ecspi1 {
+ m25p80@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "barebox";
+ reg = <0x000000 0x100000>;
+ };
+
+ environment_spinor: partition@100000 {
+ label = "barebox-environment";
+ reg = <0x100000 0x80000>;
+ };
+ };
+};
+
+&fec {
+ phy-reset-duration = <2>;
+};
+
+&ocotp {
+ barebox,provide-mac-address = <&fec 0x620>;
+};
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index e772162..5ca84f6 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -397,6 +397,11 @@ config MACH_TECHNEXION_WANDBOARD
select ARM_USE_COMPRESSED_DTB
select MCI_IMX_ESDHC_PBL
+config MACH_EMBEST_MARSBOARD
+ bool "Embest MarSboard"
+ select ARCH_IMX6
+ select ARM_USE_COMPRESSED_DTB
+
config MACH_EMBEST_RIOTBOARD
bool "Embest RIoTboard"
select ARCH_IMX6
diff --git a/images/Makefile.imx b/images/Makefile.imx
index 84c4071..a8f8a9b 100644
--- a/images/Makefile.imx
+++ b/images/Makefile.imx
@@ -406,6 +406,11 @@ CFG_start_imx6q_embedsky_e9.pblb.imximg = $(board)/embedsky-e9/flash-header-e9.i
FILE_barebox-embedsky-imx6q-e9.img = start_imx6q_embedsky_e9.pblb.imximg
image-$(CONFIG_MACH_EMBEDSKY_E9) += barebox-embedsky-imx6q-e9.img
+pblb-$(CONFIG_MACH_EMBEST_MARSBOARD) += start_imx6q_marsboard
+CFG_start_imx6q_marsboard.pblb.imximg = $(board)/embest-marsboard/flash-header-embest-marsboard.imxcfg
+FILE_barebox-embest-imx6q-marsboard.img = start_imx6q_marsboard.pblb.imximg
+image-$(CONFIG_MACH_EMBEST_MARSBOARD) += barebox-embest-imx6q-marsboard.img
+
pblb-$(CONFIG_MACH_EMBEST_RIOTBOARD) += start_imx6s_riotboard
CFG_start_imx6s_riotboard.pblb.imximg = $(board)/embest-riotboard/flash-header-embest-riotboard.imxcfg
FILE_barebox-embest-imx6s-riotboard.img = start_imx6s_riotboard.pblb.imximg