arm: at91: smartweb: add DM and DTS support

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
[rebased on current ToT]
Signed-off-by: Andreas Bießmann <andreas@biessmann.org>

arch/arm/dts/Makefile

@@ -2,7 +2,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-dtb-$(CONFIG_AT91FAMILY) += at91sam9g45-corvus.dtb \
+dtb-$(CONFIG_AT91FAMILY) += at91sam9260-smartweb.dtb \
+	at91sam9g45-corvus.dtb \
 	at91sam9g45-gurnard.dtb
 
 dtb-$(CONFIG_S5PC100) += s5pc1xx-smdkc100.dtb

arch/arm/dts/at91sam9260-smartweb.dts

@@ -0,0 +1,110 @@
+/*
+ * at91sam9260-smartweb.dts
+ * (C) Copyright 2016
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * Based on:
+ * at91sam9g20ek.dts - Device Tree file for Atmel at91sam9g20ek board
+ *
+ * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Licensed under GPLv2.
+ */
+/dts-v1/;
+#include "at91sam9260.dtsi"
+
+/ {
+	model = "Siemens smartweb";
+	compatible = "atmel,at91sam9260", "atmel,at91sam9";
+
+	chosen {
+		stdout-path = &dbgu;
+	};
+
+	memory {
+		reg = <0x20000000 0x4000000>;
+	};
+
+	clocks {
+		slow_xtal {
+			clock-frequency = <32768>;
+		};
+
+		main_xtal {
+			clock-frequency = <18432000>;
+		};
+	};
+
+	ahb {
+		apb {
+			pinctrl@fffff400 {
+				board {
+					pinctrl_pck0_as_mck: pck0_as_mck {
+						atmel,pins =
+							<AT91_PIOC 1 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PC1 periph B */
+					};
+
+				};
+			};
+
+			dbgu: serial@fffff200 {
+				status = "okay";
+			};
+
+			usart0: serial@fffb0000 {
+				pinctrl-0 =
+					<&pinctrl_usart0
+					 &pinctrl_usart0_rts
+					 &pinctrl_usart0_cts
+					 &pinctrl_usart0_dtr_dsr
+					 &pinctrl_usart0_dcd
+					 &pinctrl_usart0_ri>;
+				status = "okay";
+			};
+
+			usart1: serial@fffb4000 {
+				status = "okay";
+			};
+
+			macb0: ethernet@fffc4000 {
+				phy-mode = "rmii";
+				status = "okay";
+			};
+
+			usb1: gadget@fffa4000 {
+				atmel,vbus-gpio = <&pioC 5 GPIO_ACTIVE_HIGH>;
+				status = "okay";
+			};
+
+			ssc0: ssc@fffbc000 {
+				status = "okay";
+				pinctrl-0 = <&pinctrl_ssc0_tx>;
+			};
+
+			rtc@fffffd20 {
+				atmel,rtt-rtc-time-reg = <&gpbr 0x0>;
+				status = "okay";
+			};
+
+			watchdog@fffffd40 {
+				status = "okay";
+			};
+
+			gpbr: syscon@fffffd50 {
+				status = "okay";
+			};
+		};
+
+		nand0: nand@40000000 {
+			nand-bus-width = <8>;
+			nand-ecc-mode = "soft";
+			nand-on-flash-bbt;
+			status = "okay";
+		};
+
+		usb0: ohci@00500000 {
+			num-ports = <2>;
+			status = "okay";
+		};
+	};
+};

arch/arm/mach-at91/Kconfig

@@ -136,6 +136,10 @@ config TARGET_SMARTWEB
 	bool "Support smartweb"
 	select CPU_ARM926EJS
 	select SUPPORT_SPL
+	select DM
+	select DM_SERIAL
+	select DM_GPIO
+	select DM_ETH
 
 config TARGET_VINCO
 	bool "Support VINCO"

board/siemens/smartweb/smartweb.c

@@ -17,23 +17,33 @@
  */
 
 #include <common.h>
+#include <dm.h>
 #include <asm/io.h>
 #include <asm/arch/at91sam9_sdramc.h>
 #include <asm/arch/at91sam9260_matrix.h>
 #include <asm/arch/at91sam9_smc.h>
 #include <asm/arch/at91_common.h>
+#include <asm/arch/atmel_serial.h>
 #include <asm/arch/at91_spi.h>
 #include <spi.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/gpio.h>
+#include <asm/gpio.h>
 #include <watchdog.h>
-#ifdef CONFIG_MACB
 # include <net.h>
+#ifndef CONFIG_DM_ETH
 # include <netdev.h>
 #endif
 
 DECLARE_GLOBAL_DATA_PTR;
 
+static void smartweb_request_gpio(void)
+{
+	gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand ena");
+	gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand rdy");
+	gpio_request(AT91_PIN_PA26, "ena PHY");
+}
+
 static void smartweb_nand_hw_init(void)
 {
 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
@@ -65,7 +75,6 @@ static void smartweb_nand_hw_init(void)
 	at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
 }
 
-#ifdef CONFIG_MACB
 static void smartweb_macb_hw_init(void)
 {
 	struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
@@ -108,7 +117,6 @@ static void smartweb_macb_hw_init(void)
 	/* Initialize EMAC=MACB hardware */
 	at91_macb_hw_init();
 }
-#endif /* CONFIG_MACB */
 
 #ifdef CONFIG_USB_GADGET_AT91
 #include <linux/usb/at91_udc.h>
@@ -133,11 +141,13 @@ int board_early_init_f(void)
 {
 	/* enable this here, as we have SPL without serial support */
 	at91_seriald_hw_init();
+	smartweb_request_gpio();
 	return 0;
 }
 
 int board_init(void)
 {
+	smartweb_request_gpio();
 	/* power LED red */
 	at91_set_gpio_output(AT91_PIN_PC6, 0);
 	at91_set_gpio_output(AT91_PIN_PC7, 1);
@@ -157,9 +167,7 @@ int board_init(void)
 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 
 	smartweb_nand_hw_init();
-#ifdef CONFIG_MACB
 	smartweb_macb_hw_init();
-#endif
 	return 0;
 }
 
@@ -171,12 +179,14 @@ int dram_init(void)
 	return 0;
 }
 
+#ifndef CONFIG_DM_ETH
 #ifdef CONFIG_MACB
 int board_eth_init(bd_t *bis)
 {
 	return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00);
 }
 #endif /* CONFIG_MACB */
+#endif
 
 #if defined(CONFIG_SPL_BUILD)
 #include <spl.h>
@@ -192,8 +202,9 @@ void matrix_init(void)
 			&mat->scfg[3]);
 }
 
-void spl_board_init(void)
+void at91_spl_board_init(void)
 {
+	smartweb_request_gpio();
 	/* power LED orange */
 	at91_set_gpio_output(AT91_PIN_PC6, 1);
 	at91_set_gpio_output(AT91_PIN_PC7, 1);
@@ -245,3 +256,12 @@ void mem_init(void)
 	sdramc_initialize(ATMEL_BASE_CS1, &setting);
 }
 #endif
+
+static struct atmel_serial_platdata at91sam9260_serial_plat = {
+	.base_addr = ATMEL_BASE_DBGU,
+};
+
+U_BOOT_DEVICE(at91sam9260_serial) = {
+	.name	= "serial_atmel",
+	.platdata = &at91sam9260_serial_plat,
+};

configs/smartweb_defconfig

@@ -1,6 +1,7 @@
 CONFIG_ARM=y
 CONFIG_ARCH_AT91=y
 CONFIG_TARGET_SMARTWEB=y
+CONFIG_DEFAULT_DEVICE_TREE="at91sam9260-smartweb"
 CONFIG_SPL=y
 CONFIG_FIT=y
 CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9260"
@@ -16,13 +17,17 @@ CONFIG_AUTOBOOT_STOP_STR="\x1b\x1b"
 CONFIG_CMD_USB=y
 CONFIG_CMD_DFU=y
 # CONFIG_CMD_FPGA is not set
+# CONFIG_CMD_SOURCE is not set
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_FAT=y
+CONFIG_OF_CONTROL=y
+CONFIG_OF_EMBED=y
 CONFIG_USB=y
+CONFIG_DM_USB=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_G_DNL_MANUFACTURER="Siemens AG"
 CONFIG_G_DNL_VENDOR_NUM=0x0908
 CONFIG_G_DNL_PRODUCT_NUM=0x02d2
-CONFIG_OF_LIBFDT=y
+# CONFIG_EFI_LOADER is not set

include/configs/smartweb.h

@@ -45,7 +45,7 @@
 #define CONFIG_CMDLINE_TAG		/* pass commandline to Kernel */
 #define CONFIG_SETUP_MEMORY_TAGS	/* pass memory defs to kernel */
 #define CONFIG_INITRD_TAG		/* pass initrd param to kernel */
-#define CONFIG_SKIP_LOWLEVEL_INIT	/* U-Boot is loaded by a bootloader */
+#define CONFIG_SKIP_LOWLEVEL_INIT_ONLY	/* U-Boot is loaded by a bootloader */
 #define CONFIG_BOARD_EARLY_INIT_F	/* call board_early_init_f() */
 #define CONFIG_DISPLAY_CPUINFO		/* display CPU Info at startup */
 
@@ -157,10 +157,6 @@
 #define CONFIG_SYS_USB_OHCI_SLOT_NAME	"at91sam9260"
 #define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS	2
 
-#define CONFIG_USB_HOST_ETHER
-#define CONFIG_USB_ETHER_ASIX
-#define CONFIG_USB_ETHER_MCS7830
-
 /* USB DFU support */
 #define CONFIG_CMD_MTDPARTS
 #define CONFIG_MTD_DEVICE