[PATCH v2 2/3] ARM: at91: add support for SAMA5D3 - Ethernet Development System Board
Oleksij Rempel
o.rempel at pengutronix.de
Thu Jul 6 01:11:25 PDT 2023
Microchip Technology SAMA5D3 Ethernet Development System (EDS) Board
(DM320114) is an MPU-based platform for evaluating Ethernet Switch and
PHY products. Compatible Ethernet Switch and PHY Evaluation Boards
connect to the SAMA5D3 EDS Board via either an RGMII or RMII connector.
The Microchip Technology SAMA5D3 EDS Board is not intended for
stand-alone use and has no Ethernet capabilities when no daughter board
or an USB Ethernet adapter is connected.
For more information see:
https://www.microchip.com/en-us/development-tool/DM320114
Signed-off-by: Oleksij Rempel <o.rempel at pengutronix.de>
Reviewed-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
Documentation/boards/at91.rst | 2 +
arch/arm/boards/Makefile | 1 +
.../arm/boards/microchip-sama5d3-eds/Makefile | 3 +
.../boards/microchip-sama5d3-eds/lowlevel.c | 62 +++++++++++++++++++
arch/arm/configs/at91_multi_defconfig | 1 +
arch/arm/dts/Makefile | 1 +
arch/arm/dts/at91-microchip-sama5d3-eds.dts | 14 +++++
arch/arm/mach-at91/Kconfig | 10 +++
images/Makefile.at91 | 9 +++
9 files changed, 103 insertions(+)
create mode 100644 arch/arm/boards/microchip-sama5d3-eds/Makefile
create mode 100644 arch/arm/boards/microchip-sama5d3-eds/lowlevel.c
create mode 100644 arch/arm/dts/at91-microchip-sama5d3-eds.dts
diff --git a/Documentation/boards/at91.rst b/Documentation/boards/at91.rst
index f502979df6..961ef58d84 100644
--- a/Documentation/boards/at91.rst
+++ b/Documentation/boards/at91.rst
@@ -35,6 +35,8 @@ The resulting images will be placed under ``images/``:
barebox-at91sam9263ek.img
barebox-microchip-ksz9477-evb.img
barebox-microchip-ksz9477-evb-xload-mmc.img
+ barebox-microchip-sama5d3-eds.img
+ barebox-microchip-sama5d3-eds-xload-mmc.img
barebox-sama5d3-xplained.img
barebox-sama5d3-xplained-xload-mmc.img
barebox-sama5d27-som1-ek.img
diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index 2877debad5..382e649fce 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -121,6 +121,7 @@ obj-$(CONFIG_MACH_SAMA5D27_SOM1) += sama5d27-som1/
obj-$(CONFIG_MACH_SAMA5D3XEK) += sama5d3xek/
obj-$(CONFIG_MACH_SAMA5D3_XPLAINED) += sama5d3_xplained/
obj-$(CONFIG_MACH_MICROCHIP_KSZ9477_EVB) += microchip-ksz9477-evb/
+obj-$(CONFIG_MACH_MICROCHIP_SAMA5D3_EDS) += microchip-sama5d3-eds/
obj-$(CONFIG_MACH_SAMA5D4_XPLAINED) += sama5d4_xplained/
obj-$(CONFIG_MACH_SAMA5D4_WIFX) += sama5d4_wifx/
obj-$(CONFIG_MACH_SAMA5D4EK) += sama5d4ek/
diff --git a/arch/arm/boards/microchip-sama5d3-eds/Makefile b/arch/arm/boards/microchip-sama5d3-eds/Makefile
new file mode 100644
index 0000000000..458f520900
--- /dev/null
+++ b/arch/arm/boards/microchip-sama5d3-eds/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+lwl-y += lowlevel.o
diff --git a/arch/arm/boards/microchip-sama5d3-eds/lowlevel.c b/arch/arm/boards/microchip-sama5d3-eds/lowlevel.c
new file mode 100644
index 0000000000..79346a9b6a
--- /dev/null
+++ b/arch/arm/boards/microchip-sama5d3-eds/lowlevel.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0-only AND BSD-1-Clause
+/*
+ * Copyright (C) 2014, Atmel Corporation
+ * Copyright (C) 2018 Ahmad Fatoum, Pengutronix
+ */
+
+#include <common.h>
+#include <init.h>
+
+#include <asm/barebox-arm-head.h>
+#include <debug_ll.h>
+#include <mach/at91/barebox-arm.h>
+#include <mach/at91/iomux.h>
+#include <mach/at91/sama5d3.h>
+#include <mach/at91/sama5d3-xplained-ddramc.h>
+#include <mach/at91/xload.h>
+
+/* PCK = 528MHz, MCK = 132MHz */
+#define MASTER_CLOCK 132000000
+
+static void dbgu_init(void)
+{
+ void __iomem *pio = IOMEM(SAMA5D3_BASE_PIOB);
+
+ sama5d3_pmc_enable_periph_clock(SAMA5D3_ID_PIOB);
+
+ at91_mux_pio3_pin(pio, pin_to_mask(AT91_PIN_PB31), AT91_MUX_PERIPH_A, 0);
+
+ sama5d3_pmc_enable_periph_clock(SAMA5D3_ID_DBGU);
+ at91_dbgu_setup_ll(IOMEM(AT91_BASE_DBGU1), MASTER_CLOCK, 115200);
+
+ putc_ll('>');
+}
+
+SAMA5D3_ENTRY_FUNCTION(start_microchip_sama5d3_eds_xload_mmc, r4)
+{
+ sama5d3_lowlevel_init();
+
+ relocate_to_current_adr();
+ setup_c();
+
+ sama5d3_udelay_init(MASTER_CLOCK);
+ sama5d3_xplained_ddrconf();
+ if (IS_ENABLED(CONFIG_DEBUG_LL))
+ dbgu_init();
+
+ sama5d3_atmci_start_image(0, MASTER_CLOCK, 0);
+}
+
+extern char __dtb_z_at91_microchip_sama5d3_eds_start[];
+
+SAMA5D3_ENTRY_FUNCTION(start_microchip_sama5d3_eds, r4)
+{
+ void *fdt;
+
+ if (IS_ENABLED(CONFIG_DEBUG_LL))
+ dbgu_init();
+
+ fdt = __dtb_z_at91_microchip_sama5d3_eds_start + get_runtime_offset();
+
+ sama5d3_barebox_entry(r4, fdt);
+}
diff --git a/arch/arm/configs/at91_multi_defconfig b/arch/arm/configs/at91_multi_defconfig
index c93c2f5786..de47af3bd0 100644
--- a/arch/arm/configs/at91_multi_defconfig
+++ b/arch/arm/configs/at91_multi_defconfig
@@ -4,6 +4,7 @@ CONFIG_MACH_SKOV_ARM9CPU=y
CONFIG_MACH_AT91SAM9263EK=y
CONFIG_MACH_AT91SAM9X5EK=y
CONFIG_MACH_MICROCHIP_KSZ9477_EVB=y
+CONFIG_MACH_MICROCHIP_SAMA5D3_EDS=y
CONFIG_MACH_SAMA5D3_XPLAINED=y
CONFIG_MACH_SAMA5D27_SOM1=y
CONFIG_MACH_SAMA5D27_GIANTBOARD=y
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 98f4c4e019..eb9e0e062a 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -193,6 +193,7 @@ lwl-$(CONFIG_MACH_AC_SXB) += ac-sxb.dtb.o
lwl-$(CONFIG_MACH_AT91SAM9263EK_DT) += at91sam9263ek.dtb.o
lwl-$(CONFIG_MACH_SAMA5D3_XPLAINED) += at91-sama5d3_xplained.dtb.o
lwl-$(CONFIG_MACH_MICROCHIP_KSZ9477_EVB) += at91-microchip-ksz9477-evb.dtb.o
+lwl-$(CONFIG_MACH_MICROCHIP_SAMA5D3_EDS) += at91-microchip-sama5d3-eds.dtb.o
lwl-$(CONFIG_MACH_SAMA5D27_SOM1) += at91-sama5d27_som1_ek.dtb.o
lwl-$(CONFIG_MACH_SAMA5D27_GIANTBOARD) += at91-sama5d27_giantboard.dtb.o
lwl-$(CONFIG_MACH_SAMA5D4_WIFX) += at91-sama5d4_wifx_l1.dtb.o
diff --git a/arch/arm/dts/at91-microchip-sama5d3-eds.dts b/arch/arm/dts/at91-microchip-sama5d3-eds.dts
new file mode 100644
index 0000000000..ad75fc882c
--- /dev/null
+++ b/arch/arm/dts/at91-microchip-sama5d3-eds.dts
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/dts-v1/;
+#include <arm/at91-sama5d3_eds.dts>
+#include "sama5d3.dtsi"
+
+/ {
+ chosen {
+ environment {
+ compatible = "barebox,environment";
+ device-path = &mmc0, "partname:0";
+ file-path = "barebox.env";
+ };
+ };
+};
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 349586b683..d249974725 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -606,6 +606,16 @@ config MACH_MICROCHIP_KSZ9477_EVB
help
Select this if you are using Microchip's EVB-KSZ9477 Evaluation Kit.
+config MACH_MICROCHIP_SAMA5D3_EDS
+ bool "Microchip SAMA5D3 Ethernet Development System"
+ select SOC_SAMA5D3
+ select OFDEVICE
+ select MCI_ATMEL_PBL
+ select COMMON_CLK_OF_PROVIDER
+ help
+ Select this if you are using Microchip's SAMA5D3 Ethernet Development
+ System.
+
config MACH_SAMA5D3_XPLAINED
bool "Atmel SAMA5D3_XPLAINED Evaluation Kit"
select SOC_SAMA5D3
diff --git a/images/Makefile.at91 b/images/Makefile.at91
index 19a81e2e9a..36f7259406 100644
--- a/images/Makefile.at91
+++ b/images/Makefile.at91
@@ -20,6 +20,15 @@ MAX_PBL_IMAGE_SIZE_start_sama5d3_xplained_ung8071_xload_mmc = 0xffff
FILE_barebox-microchip-ksz9477-evb-xload-mmc.img = start_sama5d3_xplained_ung8071_xload_mmc.pblb
image-$(CONFIG_MACH_MICROCHIP_KSZ9477_EVB) += barebox-microchip-ksz9477-evb-xload-mmc.img
+pblb-$(CONFIG_MACH_MICROCHIP_SAMA5D3_EDS) += start_microchip_sama5d3_eds
+FILE_barebox-microchip-sama5d3-eds.img = start_microchip_sama5d3_eds.pblb
+image-$(CONFIG_MACH_MICROCHIP_SAMA5D3_EDS) += barebox-microchip-sama5d3-eds.img
+
+pblb-$(CONFIG_MACH_MICROCHIP_SAMA5D3_EDS) += start_microchip_sama5d3_eds_xload_mmc
+MAX_PBL_IMAGE_SIZE_start_microchip_sama5d3_eds_xload_mmc = 0xffff
+FILE_barebox-microchip-sama5d3-eds-xload-mmc.img = start_microchip_sama5d3_eds_xload_mmc.pblb
+image-$(CONFIG_MACH_MICROCHIP_SAMA5D3_EDS) += barebox-microchip-sama5d3-eds-xload-mmc.img
+
pblb-$(CONFIG_MACH_SAMA5D3_XPLAINED) += start_sama5d3_xplained
FILE_barebox-sama5d3-xplained.img = start_sama5d3_xplained.pblb
image-$(CONFIG_MACH_SAMA5D3_XPLAINED) += barebox-sama5d3-xplained.img
--
2.39.2
More information about the barebox
mailing list