arm, at91: add Siemens board taurus and axm

enable support for the siemens AT91SAM9G20 based boards taurus
and axm.

Signed-off-by: Roger Meier <r.meier@siemens.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

4 files changed, 340 insertions, 0 deletions

diff --git a/board/siemens/taurus/Makefile b/board/siemens/taurus/Makefile
new file mode 100644
index 0000000..a26fb92
--- /dev/null
+++ b/board/siemens/taurus/Makefile
@@ -0,0 +1,18 @@
+#
+# Makefile for Siemens TAURUS (AT91SAM9G20) based board
+# (C) Copyright 2013 Siemens AG
+#
+# Based on:
+# U-Boot file: board/atmel/at91sam9260ek/Makefile
+#
+# (C) Copyright 2003-2008
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2008
+# Stelian Pop <stelian@popies.net>
+# Lead Tech Design <www.leadtechdesign.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= taurus.o
diff --git a/board/siemens/taurus/taurus.c b/board/siemens/taurus/taurus.c
new file mode 100644
index 0000000..673b302
--- /dev/null
+++ b/board/siemens/taurus/taurus.c
@@ -0,0 +1,160 @@
+/*
+ * Board functions for Siemens TAURUS (AT91SAM9G20) based boards
+ * (C) Copyright Siemens AG
+ *
+ * Based on:
+ * U-Boot file: board/atmel/at91sam9260ek/at91sam9260ek.c
+ *
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian@popies.net>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/at91sam9260_matrix.h>
+#include <asm/arch/at91sam9_smc.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/at91sam9_sdramc.h>
+#include <atmel_mci.h>
+
+#include <net.h>
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_CMD_NAND
+static void taurus_nand_hw_init(void)
+{
+	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
+	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
+	unsigned long csa;
+
+	/* Assign CS3 to NAND/SmartMedia Interface */
+	csa = readl(&matrix->ebicsa);
+	csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
+	writel(csa, &matrix->ebicsa);
+
+	/* Configure SMC CS3 for NAND/SmartMedia */
+	writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
+	       AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
+	       &smc->cs[3].setup);
+	writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
+	       AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(3),
+	       &smc->cs[3].pulse);
+	writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
+	       &smc->cs[3].cycle);
+	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
+	       AT91_SMC_MODE_EXNW_DISABLE |
+	       AT91_SMC_MODE_DBW_8 |
+	       AT91_SMC_MODE_TDF_CYCLE(3),
+	       &smc->cs[3].mode);
+
+	/* Configure RDY/BSY */
+	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
+
+	/* Enable NandFlash */
+	at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
+}
+#endif
+
+#ifdef CONFIG_MACB
+static void taurus_macb_hw_init(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+	/* Enable EMAC clock */
+	writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
+
+	/*
+	 * Disable pull-up on:
+	 *	RXDV (PA17) => PHY normal mode (not Test mode)
+	 *	ERX0 (PA14) => PHY ADDR0
+	 *	ERX1 (PA15) => PHY ADDR1
+	 *	ERX2 (PA25) => PHY ADDR2
+	 *	ERX3 (PA26) => PHY ADDR3
+	 *	ECRS (PA28) => PHY ADDR4  => PHYADDR = 0x0
+	 *
+	 * PHY has internal pull-down
+	 */
+	at91_set_pio_pullup(AT91_PIO_PORTA, 14, 0);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 17, 0);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 25, 0);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 26, 0);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 28, 0);
+
+	at91_phy_reset();
+
+	at91_set_gpio_input(AT91_PIN_PA25, 1);   /* ERST tri-state */
+
+	/* Re-enable pull-up */
+	at91_set_pio_pullup(AT91_PIO_PORTA, 14, 1);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 17, 1);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 25, 1);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 26, 1);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 28, 1);
+
+	/* Initialize EMAC=MACB hardware */
+	at91_macb_hw_init();
+}
+#endif
+
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+int board_mmc_init(bd_t *bd)
+{
+	at91_mci_hw_init();
+
+	return atmel_mci_init((void *)ATMEL_BASE_MCI);
+}
+#endif
+
+int board_early_init_f(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+	/* Enable clocks for all PIOs */
+	writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) |
+		(1 << ATMEL_ID_PIOC),
+		&pmc->pcer);
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+	at91_seriald_hw_init();
+#ifdef CONFIG_CMD_NAND
+	taurus_nand_hw_init();
+#endif
+#ifdef CONFIG_MACB
+	taurus_macb_hw_init();
+#endif
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+				    CONFIG_SYS_SDRAM_SIZE);
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	int rc = 0;
+#ifdef CONFIG_MACB
+	rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00);
+#endif
+	return rc;
+}
diff --git a/boards.cfg b/boards.cfg
index edc48b2..96ba30b 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -139,6 +139,8 @@ Active  arm         arm926ejs      at91        ronetix         pm9263
 Active  arm         arm926ejs      at91        ronetix         pm9g45              pm9g45                               pm9g45:AT91SAM9G45                                                                                                                Ilko Iliev <iliev@ronetix.at>
 Active  arm         arm926ejs      at91        taskit          stamp9g20           portuxg20                            stamp9g20:AT91SAM9G20,PORTUXG20                                                                                                   Markus Hubig <mhubig@imko.de>
 Active  arm         arm926ejs      at91        taskit          stamp9g20           stamp9g20                            stamp9g20:AT91SAM9G20                                                                                                             Markus Hubig <mhubig@imko.de>
+Active  arm         arm926ejs      at91        siemens         taurus              axm                                  taurus:AT91SAM9G20,MACH_TYPE=2068,BOARD_AXM                                                                                       Heiko Schocher <hs@denx.de>
+Active  arm         arm926ejs      at91        siemens         taurus              taurus                               taurus:AT91SAM9G20,MACH_TYPE=2067,BOARD_TAURUS                                                                                    Heiko Schocher <hs@denx.de>
 Active  arm         arm926ejs      davinci     ait             cam_enc_4xx         cam_enc_4xx                          cam_enc_4xx                                                                                                                       Heiko Schocher <hs@denx.de>
 Active  arm         arm926ejs      davinci     Barix           ipam390             ipam390                              -                                                                                                                                 Heiko Schocher <hs@denx.de>
 Active  arm         arm926ejs      davinci     davinci         da8xxevm            da830evm                             -                                                                                                                                 Nick Thompson <nick.thompson@gefanuc.com>
diff --git a/include/configs/taurus.h b/include/configs/taurus.h
new file mode 100644
index 0000000..c980023
--- /dev/null
+++ b/include/configs/taurus.h
@@ -0,0 +1,160 @@
+/*
+ * Common board functions for Siemens TAURUS (AT91SAM9G20) based boards
+ * (C) Copyright 2013 Siemens AG
+ *
+ * Based on:
+ * U-Boot file: include/configs/at91sam9260ek.h
+ *
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian@popies.net>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * SoC must be defined first, before hardware.h is included.
+ * In this case SoC is defined in boards.cfg.
+ */
+#include <asm/hardware.h>
+
+#define MACH_TYPE_TAURUS		2067
+#define MACH_TYPE_AXM			2068
+
+/*
+ * Warning: changing CONFIG_SYS_TEXT_BASE requires
+ * adapting the initial boot program.
+ * Since the linker has to swallow that define, we must use a pure
+ * hex number here!
+ */
+
+
+#define CONFIG_SYS_TEXT_BASE		0x23f00000
+
+/* ARM asynchronous clock */
+#define CONFIG_SYS_AT91_SLOW_CLOCK	32768		/* slow clock xtal */
+#define CONFIG_SYS_AT91_MAIN_CLOCK	18432000	/* main clock xtal */
+#define CONFIG_SYS_HZ			1000
+
+/* Misc CPU related */
+#define CONFIG_ARCH_CPU_INIT
+#define CONFIG_CMDLINE_TAG		/* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_DISPLAY_CPUINFO
+
+#define CONFIG_CMD_BOOTZ
+#define CONFIG_OF_LIBFDT
+
+/* general purpose I/O */
+#define CONFIG_ATMEL_LEGACY		/* required until (g)pio is fixed */
+#define CONFIG_AT91_GPIO
+#define CONFIG_AT91_GPIO_PULLUP	1	/* keep pullups on peripheral pins */
+
+/* serial console */
+#define CONFIG_ATMEL_USART
+#define CONFIG_USART_BASE		ATMEL_BASE_DBGU
+#define CONFIG_USART_ID			ATMEL_ID_SYS
+#define CONFIG_BAUDRATE			115200
+
+#define CONFIG_BOOTDELAY	3
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+#undef CONFIG_CMD_BDI
+#undef CONFIG_CMD_FPGA
+#undef CONFIG_CMD_IMI
+#undef CONFIG_CMD_IMLS
+#undef CONFIG_CMD_LOADS
+#undef CONFIG_CMD_SOURCE
+
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_NAND
+
+/*
+ * SDRAM: 1 bank, min 32, max 128 MB
+ * Initialized before u-boot gets started.
+ */
+#define CONFIG_NR_DRAM_BANKS		1
+#define CONFIG_SYS_SDRAM_BASE		ATMEL_BASE_CS1
+#define CONFIG_SYS_SDRAM_SIZE		(128 * 1024 * 1024)
+
+/*
+ * Initial stack pointer: 4k - GENERATED_GBL_DATA_SIZE in internal SRAM,
+ * leaving the correct space for initial global data structure above
+ * that address while providing maximum stack area below.
+ */
+# define CONFIG_SYS_INIT_SP_ADDR \
+	(ATMEL_BASE_SRAM1 + 0x1000 - GENERATED_GBL_DATA_SIZE)
+
+/* NAND flash */
+#ifdef CONFIG_CMD_NAND
+#define CONFIG_NAND_ATMEL
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+#define CONFIG_SYS_NAND_BASE		ATMEL_BASE_CS3
+#define CONFIG_SYS_NAND_DBW_8
+#define CONFIG_SYS_NAND_MASK_ALE	(1 << 21)
+#define CONFIG_SYS_NAND_MASK_CLE	(1 << 22)
+#define CONFIG_SYS_NAND_ENABLE_PIN	AT91_PIN_PC14
+#define CONFIG_SYS_NAND_READY_PIN	AT91_PIN_PC13
+#endif
+
+/* NOR flash - no real flash on this board */
+#define CONFIG_SYS_NO_FLASH			1
+
+/* Ethernet */
+#define CONFIG_MACB
+#define CONFIG_RMII
+#define CONFIG_AT91_WANTS_COMMON_PHY
+
+/* USB */
+#if defined(CONFIG_BOARD_TAURUS)
+#define CONFIG_USB_ATMEL
+#define CONFIG_USB_OHCI_NEW
+#define CONFIG_SYS_USB_OHCI_CPU_INIT
+#define CONFIG_SYS_USB_OHCI_REGS_BASE		0x00500000
+#define CONFIG_SYS_USB_OHCI_SLOT_NAME		"at91sam9260"
+#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS	2
+#define CONFIG_USB_STORAGE
+#endif
+
+/* load address */
+#define CONFIG_SYS_LOAD_ADDR			0x22000000
+
+/* bootstrap in spi flash , u-boot + env + linux in nandflash */
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET		0x100000
+#define CONFIG_ENV_OFFSET_REDUND	0x180000
+#define CONFIG_ENV_SIZE		0x20000		/* 1 sector = 128 kB */
+#define CONFIG_BOOTCOMMAND	"nand read 0x22000000 0x200000 0x300000; bootm"
+#define CONFIG_BOOTARGS							\
+	"console=ttyS0,115200 earlyprintk "				\
+	"mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro,"		\
+	"256k(env),256k(env_redundant),256k(spare),"			\
+	"512k(dtb),6M(kernel)ro,-(rootfs) "				\
+	"root=/dev/mtdblock7 rw rootfstype=jffs2"
+
+#define CONFIG_SYS_PROMPT		"U-Boot> "
+#define CONFIG_SYS_CBSIZE		256
+#define CONFIG_SYS_MAXARGS		16
+#define CONFIG_SYS_PBSIZE \
+	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_AUTO_COMPLETE
+
+/*
+ * Size of malloc() pool
+ */
+#define CONFIG_SYS_MALLOC_LEN \
+	ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
+
+#endif