ARM: i.MX: sabresd: Add support for i.MX6DL board variant

The SabreSD comes with different SoC variants. This patch adds support
for the i.MX6DL based board. the DCD data has been taken from U-Boot
2023.04

Signed-off-by: Stefano Manni <stefano.manni@gmail.com>
Link: https://lore.barebox.org/4b448318f71f2677bc28c2241c5bf0c081073564.camel@gmail.com
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

6 files changed, 169 insertions, 3 deletions

diff --git a/arch/arm/boards/freescale-mx6-sabresd/board.c b/arch/arm/boards/freescale-mx6-sabresd/board.c
index 06e356a40e..2b1d005cf2 100644
--- a/arch/arm/boards/freescale-mx6-sabresd/board.c
+++ b/arch/arm/boards/freescale-mx6-sabresd/board.c
@@ -55,7 +55,8 @@ static int ar8031_phy_fixup(struct phy_device *dev)
 static int sabresd_devices_init(void)
 {
 	if (!of_machine_is_compatible("fsl,imx6q-sabresd") &&
-	    !of_machine_is_compatible("fsl,imx6qp-sabresd"))
+	    !of_machine_is_compatible("fsl,imx6qp-sabresd") &&
+	    !of_machine_is_compatible("fsl,imx6dl-sabresd"))
 		return 0;
 
 	armlinux_set_architecture(3980);
@@ -68,7 +69,8 @@ device_initcall(sabresd_devices_init);
 static int sabresd_coredevices_init(void)
 {
 	if (!of_machine_is_compatible("fsl,imx6q-sabresd") &&
-	    !of_machine_is_compatible("fsl,imx6qp-sabresd"))
+	    !of_machine_is_compatible("fsl,imx6qp-sabresd") &&
+	    !of_machine_is_compatible("fsl,imx6dl-sabresd"))
 		return 0;
 
 	phy_register_fixup_for_uid(PHY_ID_AR8031, AR_PHY_ID_MASK,
diff --git a/arch/arm/boards/freescale-mx6-sabresd/flash-header-mx6dl-sabresd.imxcfg b/arch/arm/boards/freescale-mx6-sabresd/flash-header-mx6dl-sabresd.imxcfg
new file mode 100644
index 0000000000..303b62ce4f
--- /dev/null
+++ b/arch/arm/boards/freescale-mx6-sabresd/flash-header-mx6dl-sabresd.imxcfg
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+loadaddr 0x10000000
+soc imx6
+ivtofs 0x400
+wm 32 0x020e0774 0x000C0000
+wm 32 0x020e0754 0x00000000
+wm 32 0x020e04ac 0x00000030
+wm 32 0x020e04b0 0x00000030
+wm 32 0x020e0464 0x00000030
+wm 32 0x020e0490 0x00000030
+wm 32 0x020e074c 0x00000030
+wm 32 0x020e0494 0x00000030
+wm 32 0x020e04a0 0x00000000
+wm 32 0x020e04b4 0x00000030
+wm 32 0x020e04b8 0x00000030
+wm 32 0x020e076c 0x00000030
+wm 32 0x020e0750 0x00020000
+wm 32 0x020e04bc 0x00000030
+wm 32 0x020e04c0 0x00000030
+wm 32 0x020e04c4 0x00000030
+wm 32 0x020e04c8 0x00000030
+wm 32 0x020e04cc 0x00000030
+wm 32 0x020e04d0 0x00000030
+wm 32 0x020e04d4 0x00000030
+wm 32 0x020e04d8 0x00000030
+wm 32 0x020e0760 0x00020000
+wm 32 0x020e0764 0x00000030
+wm 32 0x020e0770 0x00000030
+wm 32 0x020e0778 0x00000030
+wm 32 0x020e077c 0x00000030
+wm 32 0x020e0780 0x00000030
+wm 32 0x020e0784 0x00000030
+wm 32 0x020e078c 0x00000030
+wm 32 0x020e0748 0x00000030
+wm 32 0x020e0470 0x00000030
+wm 32 0x020e0474 0x00000030
+wm 32 0x020e0478 0x00000030
+wm 32 0x020e047c 0x00000030
+wm 32 0x020e0480 0x00000030
+wm 32 0x020e0484 0x00000030
+wm 32 0x020e0488 0x00000030
+wm 32 0x020e048c 0x00000030
+wm 32 0x021b0800 0xa1390003
+wm 32 0x021b080c 0x001F001F
+wm 32 0x021b0810 0x001F001F
+wm 32 0x021b480c 0x001F001F
+wm 32 0x021b4810 0x001F001F
+wm 32 0x021b083c 0x4220021F
+wm 32 0x021b0840 0x0207017E
+wm 32 0x021b483c 0x4201020C
+wm 32 0x021b4840 0x01660172
+wm 32 0x021b0848 0x4A4D4E4D
+wm 32 0x021b4848 0x4A4F5049
+wm 32 0x021b0850 0x3F3C3D31
+wm 32 0x021b4850 0x3238372B
+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 0x021b08b8 0x00000800
+wm 32 0x021b48b8 0x00000800
+wm 32 0x021b0004 0x0002002D
+wm 32 0x021b0008 0x00333030
+wm 32 0x021b000c 0x3F435313
+wm 32 0x021b0010 0xB66E8B63
+wm 32 0x021b0014 0x01FF00DB
+wm 32 0x021b0018 0x00001740
+wm 32 0x021b001c 0x00008000
+wm 32 0x021b002c 0x000026d2
+wm 32 0x021b0030 0x00431023
+wm 32 0x021b0040 0x00000027
+wm 32 0x021b0000 0x831A0000
+wm 32 0x021b001c 0x04008032
+wm 32 0x021b001c 0x00008033
+wm 32 0x021b001c 0x00048031
+wm 32 0x021b001c 0x05208030
+wm 32 0x021b001c 0x04008040
+wm 32 0x021b0020 0x00005800
+wm 32 0x021b0818 0x00011117
+wm 32 0x021b4818 0x00011117
+wm 32 0x021b0004 0x0002556D
+wm 32 0x021b0404 0x00011006
+wm 32 0x021b001c 0x00000000
+
+/* set the default clock gate to save power */
+wm 32 0x020c4068 0x00C03F3F
+wm 32 0x020c406c 0x0030FC03
+wm 32 0x020c4070 0x0FFFF000
+wm 32 0x020c4074 0x3FF00000
+wm 32 0x020c4078 0x00FFF300
+wm 32 0x020c407c 0x0F0000C3
+wm 32 0x020c4080 0x000003FF
+
+/* enable AXI cache for VDOA/VPU/IPU */
+wm 32 0x020e0010 0xF00000CF
+
+/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
+wm 32 0x020e0018 0x007F007F
+wm 32 0x020e001c 0x007F007F
diff --git a/arch/arm/boards/freescale-mx6-sabresd/lowlevel.c b/arch/arm/boards/freescale-mx6-sabresd/lowlevel.c
index 5490dc2d44..7cc08b47d5 100644
--- a/arch/arm/boards/freescale-mx6-sabresd/lowlevel.c
+++ b/arch/arm/boards/freescale-mx6-sabresd/lowlevel.c
@@ -54,3 +54,19 @@ ENTRY_FUNCTION(start_imx6qp_sabresd, r0, r1, r2)
 
 	barebox_arm_entry(0x10000000, SZ_1G, fdt);
 }
+
+extern char __dtb_imx6dl_sabresd_start[];
+
+ENTRY_FUNCTION(start_imx6dl_sabresd, r0, r1, r2)
+{
+	void *fdt;
+
+	imx6_cpu_lowlevel_init();
+
+	if (IS_ENABLED(CONFIG_DEBUG_LL))
+		setup_uart();
+
+	fdt = __dtb_imx6dl_sabresd_start + get_runtime_offset();
+
+	barebox_arm_entry(0x10000000, SZ_1G, fdt);
+}
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index db40c45084..67bc1e0b16 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -125,7 +125,7 @@ lwl-$(CONFIG_MACH_RPI3) += bcm2837-rpi-3.dtb.o
 lwl-$(CONFIG_MACH_RPI_CM3) += bcm2837-rpi-cm3.dtb.o
 lwl-$(CONFIG_MACH_RPI4) += bcm2711-rpi-4.dtb.o bcm2711-rpi-400.dtb.o bcm2711-rpi-cm4-io.dtb.o bcm2711-rpi-cm4s-io.dtb.o
 lwl-$(CONFIG_MACH_SABRELITE) += imx6q-sabrelite.dtb.o imx6dl-sabrelite.dtb.o
-lwl-$(CONFIG_MACH_SABRESD) += imx6q-sabresd.dtb.o imx6qp-sabresd.dtb.o
+lwl-$(CONFIG_MACH_SABRESD) += imx6q-sabresd.dtb.o imx6qp-sabresd.dtb.o imx6dl-sabresd.dtb.o
 lwl-$(CONFIG_MACH_FREESCALE_IMX6SX_SABRESDB) += imx6sx-sdb.dtb.o
 lwl-$(CONFIG_MACH_SOCFPGA_ALTERA_SOCDK) += socfpga_cyclone5_socdk.dtb.o
 lwl-$(CONFIG_MACH_SOCFPGA_EBV_SOCRATES) += socfpga_cyclone5_socrates.dtb.o
diff --git a/arch/arm/dts/imx6dl-sabresd.dts b/arch/arm/dts/imx6dl-sabresd.dts
new file mode 100644
index 0000000000..6de132a64e
--- /dev/null
+++ b/arch/arm/dts/imx6dl-sabresd.dts
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <arm/nxp/imx/imx6dl-sabresd.dts>
+
+/ {
+	model = "Freescale i.MX6 DualLite SABRE Smart Device Board";
+	compatible = "fsl,imx6dl-sabresd", "fsl,imx6dl";
+
+	chosen {
+		stdout-path = &uart1;
+
+		environment {
+			compatible = "barebox,environment";
+			device-path = &environment_usdhc3;
+		};
+	};
+};
+
+&usdhc3 {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	partition@0 {
+		label = "barebox";
+		reg = <0x0 0xe0000>;
+	};
+
+	environment_usdhc3: partition@e0000 {
+		label = "barebox-environment";
+		reg = <0xe0000 0x20000>;
+	};
+};
diff --git a/images/Makefile.imx b/images/Makefile.imx
index 08496d36b7..1b85112ff2 100644
--- a/images/Makefile.imx
+++ b/images/Makefile.imx
@@ -238,6 +238,8 @@ $(call build_imx_habv4img, CONFIG_MACH_SABRESD, start_imx6q_sabresd, freescale-m
 
 $(call build_imx_habv4img, CONFIG_MACH_SABRESD, start_imx6qp_sabresd, freescale-mx6-sabresd/flash-header-mx6qp-sabresd, freescale-imx6qp-sabresd)
 
+$(call build_imx_habv4img, CONFIG_MACH_SABRESD, start_imx6dl_sabresd, freescale-mx6-sabresd/flash-header-mx6dl-sabresd, freescale-imx6dl-sabresd)
+
 $(call build_imx_habv4img, CONFIG_MACH_UDOO_NEO, start_imx6sx_udoo_neo, udoo-neo/flash-header-mx6sx-udoo-neo_full, udoo-neo)
 
 $(call build_imx_habv4img, CONFIG_MACH_FREESCALE_IMX6SX_SABRESDB, start_imx6sx_sabresdb, freescale-mx6sx-sabresdb/flash-header-mx6sx-sabresdb, freescale-imx6sx-sabresdb)