arm, at91: add siemens corvus board

enable support for the siemens AT91SAM9G20 based board corvus.

Signed-off-by: Boris Schmidt <boris.schmidt@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, 379 insertions, 0 deletions

diff --git a/board/siemens/corvus/Makefile b/board/siemens/corvus/Makefile
new file mode 100644
index 0000000000..f3ebf77f1b
--- /dev/null
+++ b/board/siemens/corvus/Makefile
@@ -0,0 +1,18 @@
+#
+# Makefile for siemens CORVUS (AT91SAM9G45) based board
+# (C) Copyright 2013 Siemens AG
+#
+# Based on:
+# U-Boot file: board/atmel/at91sam9m10g45ek/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 += board.o
diff --git a/board/siemens/corvus/board.c b/board/siemens/corvus/board.c
new file mode 100644
index 0000000000..f1e93ef063
--- /dev/null
+++ b/board/siemens/corvus/board.c
@@ -0,0 +1,195 @@
+/*
+ * Board functions for Siemens CORVUS (AT91SAM9G45) based board
+ * (C) Copyright 2013 Siemens AG
+ *
+ * Based on:
+ * U-Boot file: board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.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/at91sam9g45_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/clk.h>
+#include <lcd.h>
+#include <atmel_lcdc.h>
+#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
+#include <net.h>
+#endif
+#include <netdev.h>
+#include <spi.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_CMD_NAND
+static void corvus_nand_hw_init(void)
+{
+	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
+	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+	unsigned long csa;
+
+	/* Enable CS3 */
+	csa = readl(&matrix->ebicsa);
+	csa |= AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA;
+	writel(csa, &matrix->ebicsa);
+
+	/* Configure SMC CS3 for NAND/SmartMedia */
+	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
+	       AT91_SMC_SETUP_NRD(1) | 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(3) | AT91_SMC_PULSE_NCS_RD(2),
+	       &smc->cs[3].pulse);
+	writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(4),
+	       &smc->cs[3].cycle);
+	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
+	       AT91_SMC_MODE_EXNW_DISABLE |
+#ifdef CONFIG_SYS_NAND_DBW_16
+	       AT91_SMC_MODE_DBW_16 |
+#else /* CONFIG_SYS_NAND_DBW_8 */
+	       AT91_SMC_MODE_DBW_8 |
+#endif
+	       AT91_SMC_MODE_TDF_CYCLE(3),
+	       &smc->cs[3].mode);
+
+	writel(1 << ATMEL_ID_PIOC, &pmc->pcer);
+
+	/* 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_CMD_USB
+static void taurus_usb_hw_init(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+	writel(1 << ATMEL_ID_PIODE, &pmc->pcer);
+
+	at91_set_gpio_output(AT91_PIN_PD1, 0);
+	at91_set_gpio_output(AT91_PIN_PD3, 0);
+}
+#endif
+
+#ifdef CONFIG_MACB
+static void corvus_macb_hw_init(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+	/* Enable clock */
+	writel(1 << ATMEL_ID_EMAC, &pmc->pcer);
+
+	/*
+	 * Disable pull-up on:
+	 *      RXDV (PA15) => PHY normal mode (not Test mode)
+	 *      ERX0 (PA12) => PHY ADDR0
+	 *      ERX1 (PA13) => PHY ADDR1 => PHYADDR = 0x0
+	 *
+	 * PHY has internal pull-down
+	 */
+	at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 12, 0);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 13, 0);
+
+	at91_phy_reset();
+
+	/* Re-enable pull-up */
+	at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 12, 1);
+	at91_set_pio_pullup(AT91_PIO_PORTA, 13, 1);
+
+	/* And the pins. */
+	at91_macb_hw_init();
+}
+#endif
+
+int board_early_init_f(void)
+{
+	at91_seriald_hw_init();
+	return 0;
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+#ifdef CONFIG_CMD_NAND
+	corvus_nand_hw_init();
+#endif
+#ifdef CONFIG_ATMEL_SPI
+	at91_spi0_hw_init(1 << 4);
+#endif
+#ifdef CONFIG_HAS_DATAFLASH
+	at91_spi0_hw_init(1 << 0);
+#endif
+#ifdef CONFIG_MACB
+	corvus_macb_hw_init();
+#endif
+#ifdef CONFIG_CMD_USB
+	taurus_usb_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_EMAC, 0x00);
+#endif
+	return rc;
+}
+
+/* SPI chip select control */
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+	return bus == 0 && cs < 2;
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+	switch (slave->cs) {
+	case 1:
+			at91_set_gpio_output(AT91_PIN_PB18, 0);
+			break;
+	case 0:
+	default:
+			at91_set_gpio_output(AT91_PIN_PB3, 0);
+			break;
+	}
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+	switch (slave->cs) {
+	case 1:
+			at91_set_gpio_output(AT91_PIN_PB18, 1);
+			break;
+	case 0:
+	default:
+			at91_set_gpio_output(AT91_PIN_PB3, 1);
+			break;
+	}
+}
diff --git a/boards.cfg b/boards.cfg
index 96ba30b9f1..1ed8f072c3 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -140,6 +140,7 @@ Active  arm         arm926ejs      at91        ronetix         pm9g45
 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         corvus              corvus                               corvus:AT91SAM9M10G45,SYS_USE_NANDFLASH                                                                                           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>
diff --git a/include/configs/corvus.h b/include/configs/corvus.h
new file mode 100644
index 0000000000..11ba4cffc4
--- /dev/null
+++ b/include/configs/corvus.h
@@ -0,0 +1,165 @@
+/*
+ * Common board functions for siemens AT91SAM9G45 based boards
+ * (C) Copyright 2013 Siemens AG
+ *
+ * Based on:
+ * U-Boot file: include/configs/at91sam9m10g45ek.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
+
+#include <asm/hardware.h>
+
+#define MACH_TYPE_CORVUS               2066
+
+/*
+ * 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  0x73f00000
+
+#define CONFIG_AT91_LEGACY
+#define CONFIG_ATMEL_LEGACY		/* required until (g)pio is fixed */
+
+/* ARM asynchronous clock */
+#define CONFIG_SYS_AT91_SLOW_CLOCK      32768
+#define CONFIG_SYS_AT91_MAIN_CLOCK      12000000 /* from 12 MHz crystal */
+#define CONFIG_SYS_HZ		        1000
+
+#define CONFIG_AT91FAMILY
+
+#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
+
+/* LED */
+#define CONFIG_AT91_LED
+#define CONFIG_RED_LED		AT91_PIN_PD31	/* this is the user1 led */
+#define CONFIG_GREEN_LED	AT91_PIN_PD0	/* this is the user2 led */
+
+#define CONFIG_BOOTDELAY	3
+
+/*
+ * BOOTP options
+ */
+#define CONFIG_BOOTP_BOOTFILESIZE
+#define CONFIG_BOOTP_BOOTPATH
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_HOSTNAME
+
+/*
+ * 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
+
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_NAND
+#define CONFIG_CMD_USB
+
+/* SDRAM */
+#define CONFIG_NR_DRAM_BANKS		1
+#define CONFIG_SYS_SDRAM_BASE           ATMEL_BASE_CS6
+#define CONFIG_SYS_SDRAM_SIZE		0x08000000
+
+#define CONFIG_SYS_INIT_SP_ADDR \
+	(CONFIG_SYS_SDRAM_BASE + 4 * 1024 - GENERATED_GBL_DATA_SIZE)
+
+/* No NOR flash */
+#define CONFIG_SYS_NO_FLASH
+
+/* 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
+/* our ALE is AD21 */
+#define CONFIG_SYS_NAND_MASK_ALE		(1 << 21)
+/* our CLE is AD22 */
+#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_PC8
+
+#endif
+
+/* Ethernet */
+#define CONFIG_MACB
+#define CONFIG_RMII
+#define CONFIG_NET_RETRY_COUNT		20
+#define CONFIG_AT91_WANTS_COMMON_PHY
+
+/* USB */
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_ATMEL
+#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS	2
+#define CONFIG_DOS_PARTITION
+#define CONFIG_USB_STORAGE
+
+#define CONFIG_SYS_LOAD_ADDR		0x72000000	/* load address */
+
+/* bootstrap + u-boot + env in nandflash */
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET		0x100000
+#define CONFIG_ENV_OFFSET_REDUND	0x180000
+#define CONFIG_ENV_SIZE			0x20000
+
+#define CONFIG_BOOTCOMMAND						\
+	"nand read 0x70000000 0x200000 0x300000;"			\
+	"bootm 0x70000000"
+#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_BAUDRATE			115200
+
+#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
+#define CONFIG_SYS_HUSH_PARSER
+
+/*
+ * Size of malloc() pool
+ */
+#define CONFIG_SYS_MALLOC_LEN	ROUND(3 * CONFIG_ENV_SIZE + \
+				128*1024, 0x1000)
+
+#endif