arm64: versal: Add mini eMMC configuration

This patch adds mini eMMC configuration which has only
emmc0 and emmc1 functionalities and can run from small
amount of memory. This is required for memory constraint
devices.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

6 files changed, 268 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index ca506234808..c61c0c62002 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -186,6 +186,9 @@ dtb-$(CONFIG_ARCH_ZYNQMP) += \
 	zynqmp-zc1751-xm017-dc3.dtb		\
 	zynqmp-zc1751-xm018-dc4.dtb		\
 	zynqmp-zc1751-xm019-dc5.dtb
+dtb-$(CONFIG_ARCH_VERSAL) += \
+	versal-mini-emmc0.dtb \
+	versal-mini-emmc1.dtb
 dtb-$(CONFIG_ARCH_ZYNQMP_R5) += \
 	zynqmp-r5.dtb
 dtb-$(CONFIG_AM33XX) += am335x-boneblack.dtb am335x-bone.dtb \
diff --git a/arch/arm/dts/versal-mini-emmc0.dts b/arch/arm/dts/versal-mini-emmc0.dts
new file mode 100644
index 00000000000..7f57d232b7f
--- /dev/null
+++ b/arch/arm/dts/versal-mini-emmc0.dts
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dts file for Xilinx Versal Mini eMMC0 Configuration
+ *
+ * (C) Copyright 2018-2019, Xilinx, Inc.
+ *
+ * Siva Durga Prasad <siva.durga.paladugu@xilinx.com>
+ * Michal Simek <michal.simek@xilinx.com>
+ */
+
+/dts-v1/;
+
+/ {
+	compatible = "xlnx,versal";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	model = "Xilinx Versal MINI eMMC0";
+
+	clk25: clk25 {
+		compatible = "fixed-clock";
+		#clock-cells = <0x0>;
+		clock-frequency = <25000000>;
+	};
+
+	dcc: dcc {
+		compatible = "arm,dcc";
+		status = "okay";
+		u-boot,dm-pre-reloc;
+	};
+
+	amba: amba {
+		u-boot,dm-pre-reloc;
+		compatible = "simple-bus";
+		#address-cells = <0x2>;
+		#size-cells = <0x2>;
+		ranges;
+
+		sdhci0: sdhci@f1040000 {
+			compatible = "xlnx,versal-8.9a", "arasan,sdhci-8.9a";
+			status = "okay";
+			reg = <0x0 0xf1040000 0x0 0x10000>;
+			clock-names = "clk_xin", "clk_ahb";
+			clocks = <&clk25 &clk25>;
+			xlnx,device_id = <0>;
+			no-1-8-v;
+			xlnx,mio_bank = <0>;
+			#stream-id-cells = <1>;
+		};
+	};
+
+	aliases {
+		serial0 = &dcc;
+		mmc0 = &sdhci0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x20000000>;
+	};
+};
diff --git a/arch/arm/dts/versal-mini-emmc1.dts b/arch/arm/dts/versal-mini-emmc1.dts
new file mode 100644
index 00000000000..9ecb1ce5dce
--- /dev/null
+++ b/arch/arm/dts/versal-mini-emmc1.dts
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dts file for Xilinx Versal Mini eMMC1 Configuration
+ *
+ * (C) Copyright 2018-2019, Xilinx, Inc.
+ *
+ * Siva Durga Prasad <siva.durga.paladugu@xilinx.com>
+ * Michal Simek <michal.simek@xilinx.com>
+ */
+
+/dts-v1/;
+
+/ {
+	compatible = "xlnx,versal";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	model = "Xilinx Versal MINI eMMC1";
+
+	clk25: clk25 {
+		compatible = "fixed-clock";
+		#clock-cells = <0x0>;
+		clock-frequency = <25000000>;
+	};
+
+	dcc: dcc {
+		compatible = "arm,dcc";
+		status = "okay";
+		u-boot,dm-pre-reloc;
+	};
+
+	amba: amba {
+		u-boot,dm-pre-reloc;
+		compatible = "simple-bus";
+		#address-cells = <0x2>;
+		#size-cells = <0x2>;
+		ranges;
+
+		sdhci1: sdhci@f105000 {
+			compatible = "xlnx,versal-8.9a", "arasan,sdhci-8.9a";
+			status = "okay";
+			reg = <0x0 0xf1050000 0x0 0x10000>;
+			clock-names = "clk_xin", "clk_ahb";
+			clocks = <&clk25 &clk25>;
+			xlnx,device_id = <1>;
+			no-1-8-v;
+			xlnx,mio_bank = <0>;
+			#stream-id-cells = <1>;
+		};
+	};
+
+	aliases {
+		serial0 = &dcc;
+		mmc0 = &sdhci1;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x20000000>;
+	};
+};
diff --git a/configs/xilinx_versal_mini_emmc0_defconfig b/configs/xilinx_versal_mini_emmc0_defconfig
new file mode 100644
index 00000000000..412bf945a45
--- /dev/null
+++ b/configs/xilinx_versal_mini_emmc0_defconfig
@@ -0,0 +1,51 @@
+CONFIG_ARM=y
+CONFIG_SYS_CONFIG_NAME="xilinx_versal_mini"
+CONFIG_ARCH_VERSAL=y
+CONFIG_SYS_TEXT_BASE=0x10000
+CONFIG_ENV_SIZE=0x80
+CONFIG_SYS_MALLOC_LEN=0x80000
+CONFIG_COUNTER_FREQUENCY=2720000
+CONFIG_NR_DRAM_BANKS=1
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_BOARD_EARLY_INIT_R=y
+# CONFIG_CMDLINE_EDITING is not set
+# CONFIG_AUTO_COMPLETE is not set
+# CONFIG_SYS_LONGHELP is not set
+CONFIG_SYS_PROMPT="Versal> "
+# CONFIG_AUTOBOOT is not set
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_CONSOLE is not set
+# CONFIG_CMD_BOOTD is not set
+# CONFIG_CMD_BOOTM is not set
+# CONFIG_CMD_BOOTI is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_FDT is not set
+# CONFIG_CMD_GO is not set
+# CONFIG_CMD_RUN is not set
+# CONFIG_CMD_IMI is not set
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_CMD_SAVEENV is not set
+# CONFIG_CMD_ENV_EXISTS is not set
+# CONFIG_CMD_CRC32 is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_LOADB is not set
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MMC=y
+# CONFIG_CMD_ECHO is not set
+# CONFIG_CMD_ITEST is not set
+# CONFIG_CMD_SOURCE is not set
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_OF_EMBED=y
+CONFIG_DEFAULT_DEVICE_TREE="versal-mini-emmc0"
+# CONFIG_NET is not set
+# CONFIG_DM_WARN is not set
+# CONFIG_DM_DEVICE_REMOVE is not set
+CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_ZYNQ=y
+# CONFIG_EFI_LOADER is not set
diff --git a/configs/xilinx_versal_mini_emmc1_defconfig b/configs/xilinx_versal_mini_emmc1_defconfig
new file mode 100644
index 00000000000..b8960db858d
--- /dev/null
+++ b/configs/xilinx_versal_mini_emmc1_defconfig
@@ -0,0 +1,51 @@
+CONFIG_ARM=y
+CONFIG_SYS_CONFIG_NAME="xilinx_versal_mini"
+CONFIG_ARCH_VERSAL=y
+CONFIG_SYS_TEXT_BASE=0x10000
+CONFIG_ENV_SIZE=0x80
+CONFIG_SYS_MALLOC_LEN=0x80000
+CONFIG_COUNTER_FREQUENCY=2720000
+CONFIG_NR_DRAM_BANKS=1
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_BOARD_EARLY_INIT_R=y
+# CONFIG_CMDLINE_EDITING is not set
+# CONFIG_AUTO_COMPLETE is not set
+# CONFIG_SYS_LONGHELP is not set
+CONFIG_SYS_PROMPT="Versal> "
+# CONFIG_AUTOBOOT is not set
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_CONSOLE is not set
+# CONFIG_CMD_BOOTD is not set
+# CONFIG_CMD_BOOTM is not set
+# CONFIG_CMD_BOOTI is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_FDT is not set
+# CONFIG_CMD_GO is not set
+# CONFIG_CMD_RUN is not set
+# CONFIG_CMD_IMI is not set
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_CMD_SAVEENV is not set
+# CONFIG_CMD_ENV_EXISTS is not set
+# CONFIG_CMD_CRC32 is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_LOADB is not set
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MMC=y
+# CONFIG_CMD_ECHO is not set
+# CONFIG_CMD_ITEST is not set
+# CONFIG_CMD_SOURCE is not set
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_OF_EMBED=y
+CONFIG_DEFAULT_DEVICE_TREE="versal-mini-emmc1"
+# CONFIG_NET is not set
+# CONFIG_DM_WARN is not set
+# CONFIG_DM_DEVICE_REMOVE is not set
+CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_ZYNQ=y
+# CONFIG_EFI_LOADER is not set
diff --git a/include/configs/xilinx_versal_mini.h b/include/configs/xilinx_versal_mini.h
new file mode 100644
index 00000000000..c15fb5fc3b6
--- /dev/null
+++ b/include/configs/xilinx_versal_mini.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Configuration for Xilinx Versal MINI configuration
+ *
+ * (C) Copyright 2018-2019 Xilinx, Inc.
+ * Michal Simek <michal.simek@xilinx.com>
+ * Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
+ */
+
+#ifndef __CONFIG_VERSAL_MINI_H
+#define __CONFIG_VERSAL_MINI_H
+
+/* #define CONFIG_SYS_DCACHE_OFF */
+#define CONFIG_SYS_ICACHE_OFF
+
+#define CONFIG_SYS_MEMTEST_SCRATCH     0xfffc0000
+
+#define CONFIG_EXTRA_ENV_SETTINGS
+
+#include <configs/xilinx_versal.h>
+
+/* Undef unneeded configs */
+#undef CONFIG_EXTRA_ENV_SETTINGS
+#undef CONFIG_ZLIB
+#undef CONFIG_GZIP
+#undef CONFIG_CMD_ENV
+#undef CONFIG_BOOTM_NETBSD
+#undef CONFIG_BOOTM_VXWORKS
+#undef CONFIG_BOOTM_LINUX
+
+/* BOOTP options */
+#undef CONFIG_BOOTP_BOOTFILESIZE
+#undef CONFIG_BOOTP_MAY_FAIL
+
+#endif /* __CONFIG_VERSAL_MINI_H */