arm: at91: taurus/axm: add DM and DTS support

add DM and DTS support for the at91 based siemens
boards.

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>

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 63b86f1..5d463ce 100644 (file)
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -3,6 +3,7 @@
 #
 
 dtb-$(CONFIG_AT91FAMILY) += at91sam9260-smartweb.dtb \
+       at91sam9g20-taurus.dtb \
        at91sam9g45-corvus.dtb \
        at91sam9g45-gurnard.dtb
 

diff --git a/arch/arm/dts/at91sam9g20-taurus.dts b/arch/arm/dts/at91sam9g20-taurus.dts
new file mode 100644 (file)
index 0000000..f27d772
--- /dev/null
+++ b/arch/arm/dts/at91sam9g20-taurus.dts
@@ -0,0 +1,119 @@
+/*
+ * at91sam9g20-taurus.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 "at91sam9g20.dtsi"
+
+/ {
+       model = "Siemens taurus";
+       compatible = "atmel,at91sam9g20ek", "atmel,at91sam9g20", "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>;
+                       };
+
+                       spi0: spi@fffc8000 {
+                               cs-gpios = <0>, <&pioC 11 0>, <0>, <0>;
+                               mtd_dataflash@0 {
+                                       compatible = "atmel,at45", "atmel,dataflash";
+                                       spi-max-frequency = <50000000>;
+                                       reg = <1>;
+                               };
+                       };
+
+                       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";
+               };
+       };
+};

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 3adfe7e..13e19ba 100644 (file)
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -131,6 +131,10 @@ config TARGET_TAURUS
        bool "Support taurus"
        select CPU_ARM926EJS
        select SUPPORT_SPL
+       select DM
+       select DM_SERIAL
+       select DM_GPIO
+       select DM_ETH
 
 config TARGET_SMARTWEB
        bool "Support smartweb"

diff --git a/board/siemens/taurus/taurus.c b/board/siemens/taurus/taurus.c
index b0385d8..8da24be 100644 (file)
--- a/board/siemens/taurus/taurus.c
+++ b/board/siemens/taurus/taurus.c
@@ -14,6 +14,7 @@
 
 #include <command.h>
 #include <common.h>
+#include <dm.h>
 #include <asm/io.h>
 #include <asm/arch/at91sam9260_matrix.h>
 #include <asm/arch/at91sam9_smc.h>
@@ -21,17 +22,28 @@
 #include <asm/arch/at91_rstc.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/at91sam9_sdramc.h>
+#include <asm/arch/atmel_serial.h>
 #include <asm/arch/clk.h>
+#include <asm/gpio.h>
 #include <linux/mtd/nand.h>
 #include <atmel_mci.h>
 #include <asm/arch/at91_spi.h>
 #include <spi.h>
 
 #include <net.h>
+#ifndef CONFIG_DM_ETH
 #include <netdev.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 
+static void taurus_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_PA25, "ena PHY");
+}
+
 static void taurus_nand_hw_init(void)
 {
        struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
@@ -265,6 +277,7 @@ int board_early_init_f(void)
        at91_periph_clk_enable(ATMEL_ID_PIOC);
 
        at91_seriald_hw_init();
+       taurus_request_gpio();
 
        return 0;
 }
@@ -308,6 +321,7 @@ int board_init(void)
        /* adress of boot parameters */
        gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 
+       taurus_request_gpio();
 #ifdef CONFIG_CMD_NAND
        taurus_nand_hw_init();
 #endif
@@ -330,6 +344,7 @@ int dram_init(void)
        return 0;
 }
 
+#ifndef CONFIG_DM_ETH
 int board_eth_init(bd_t *bis)
 {
        int rc = 0;
@@ -338,6 +353,7 @@ int board_eth_init(bd_t *bis)
 #endif
        return rc;
 }
+#endif
 
 #if !defined(CONFIG_SPL_BUILD)
 #if defined(CONFIG_BOARD_AXM)
@@ -432,3 +448,12 @@ U_BOOT_CMD(
 );
 #endif
 #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,
+};

diff --git a/configs/axm_defconfig b/configs/axm_defconfig
index 0e0eadf..d1f0c75 100644 (file)
--- a/configs/axm_defconfig
+++ b/configs/axm_defconfig
@@ -1,8 +1,10 @@
 CONFIG_ARM=y
 CONFIG_ARCH_AT91=y
 CONFIG_TARGET_TAURUS=y
+CONFIG_DEFAULT_DEVICE_TREE="at91sam9g20-taurus"
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9G20,MACH_TYPE=2068,BOARD_AXM"
+CONFIG_HUSH_PARSER=y
 CONFIG_BOOTDELAY=3
 # CONFIG_CMD_BDI is not set
 CONFIG_CMD_BOOTZ=y
@@ -16,7 +18,8 @@ CONFIG_CMD_SPI=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_PING=y
+CONFIG_OF_CONTROL=y
+CONFIG_OF_EMBED=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
 CONFIG_USE_TINY_PRINTF=y
-CONFIG_OF_LIBFDT=y

diff --git a/configs/taurus_defconfig b/configs/taurus_defconfig
index e566f7f..f451515 100644 (file)
--- a/configs/taurus_defconfig
+++ b/configs/taurus_defconfig
@@ -1,8 +1,10 @@
 CONFIG_ARM=y
 CONFIG_ARCH_AT91=y
 CONFIG_TARGET_TAURUS=y
+CONFIG_DEFAULT_DEVICE_TREE="at91sam9g20-taurus"
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9G20,MACH_TYPE=2067,BOARD_TAURUS"
+CONFIG_HUSH_PARSER=y
 CONFIG_BOOTDELAY=3
 CONFIG_SYS_PROMPT="U-Boot> "
 # CONFIG_CMD_BDI is not set
@@ -19,6 +21,8 @@ CONFIG_CMD_DFU=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_PING=y
+CONFIG_OF_CONTROL=y
+CONFIG_OF_EMBED=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
 CONFIG_USB=y
@@ -28,4 +32,3 @@ CONFIG_G_DNL_MANUFACTURER="Siemens AG"
 CONFIG_G_DNL_VENDOR_NUM=0x0908
 CONFIG_G_DNL_PRODUCT_NUM=0x02d2
 CONFIG_USE_TINY_PRINTF=y
-CONFIG_OF_LIBFDT=y

diff --git a/include/configs/taurus.h b/include/configs/taurus.h
index 0b05289..882a4e5 100644 (file)
--- a/include/configs/taurus.h
+++ b/include/configs/taurus.h
@@ -45,7 +45,7 @@
 #define CONFIG_CMDLINE_TAG             /* enable passing of ATAGs */
 #define CONFIG_SETUP_MEMORY_TAGS
 #define CONFIG_INITRD_TAG
-#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_SKIP_LOWLEVEL_INIT_ONLY
 #define CONFIG_BOARD_EARLY_INIT_F
 #define CONFIG_DISPLAY_CPUINFO