move boards to arch/<architecure>/boards

this will allow each arch to handle the boards more simply and depending on
there need

the env var BOARD will refer to the current board dirent

for sandbox as we have only one board the board dirent is arch/sandbox/board

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 275 insertions, 0 deletions

diff --git a/arch/arm/boards/omap/board-omap3evm.c b/arch/arm/boards/omap/board-omap3evm.c
new file mode 100644
index 0000000000..619ea94485
--- /dev/null
+++ b/arch/arm/boards/omap/board-omap3evm.c
@@ -0,0 +1,275 @@
+/**
+ * @file
+ * @brief Board Initialization routines for OMAP3EVM.
+ *
+ * FileName: arch/arm/boards/omap/board-omap3evm.c
+ *
+ * This board is based on OMAP3530.
+ * More on OMAP3530 (including documentation can be found here):
+ * http://focus.ti.com/docs/prod/folders/print/omap3530.html
+ *
+ * This file provides initialization in two stages:
+ * @li Boot time initialization - just get SDRAM working.
+ * This is run from SRAM - so no case constructs and global vars can be used.
+ * @li Run time initialization - this is for the rest of the initializations
+ * such as flash, uart etc.
+ *
+ * Boot time initialization includes:
+ * @li SDRAM initialization.
+ * @li Pin Muxing relevant for the EVM.
+ *
+ * Run time initialization includes
+ * @li serial @ref serial_ns16550.c driver device definition
+ *
+ * Originally from arch/arm/boards/omap/board-beagle.c
+ */
+
+/*
+ * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
+ * Sanjeev Premi <premi@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+
+#include <common.h>
+#include <console.h>
+#include <init.h>
+#include <driver.h>
+#include <asm/io.h>
+#include <ns16550.h>
+#include <asm/armlinux.h>
+#include <mach/silicon.h>
+#include <mach/sdrc.h>
+#include <mach/sys_info.h>
+#include <mach/syslib.h>
+#include <mach/control.h>
+#include <mach/omap3-mux.h>
+#include <mach/gpmc.h>
+#include "board.h"
+
+
+/*
+ * Boot-time initialization(s)
+ */
+
+/**
+ * @brief Initialize the SDRC module
+ *
+ * @return void
+ */
+static void sdrc_init(void)
+{
+	/* SDRAM software reset */
+	/* No idle ack and RESET enable */
+	writel(0x1A, SDRC_REG(SYSCONFIG));
+	sdelay(100);
+	/* No idle ack and RESET disable */
+	writel(0x18, SDRC_REG(SYSCONFIG));
+
+	/* SDRC Sharing register */
+	/* 32-bit SDRAM on data lane [31:0] - CS0 */
+	/* pin tri-stated = 1 */
+	writel(0x00000100, SDRC_REG(SHARING));
+
+	/* ----- SDRC Registers Configuration --------- */
+	/* SDRC_MCFG0 register */
+	writel(0x02584099, SDRC_REG(MCFG_0));
+
+	/* SDRC_RFR_CTRL0 register */
+	writel(0x54601, SDRC_REG(RFR_CTRL_0));
+
+	/* SDRC_ACTIM_CTRLA0 register */
+	writel(0xA29DB4C6, SDRC_REG(ACTIM_CTRLA_0));
+
+	/* SDRC_ACTIM_CTRLB0 register */
+	writel(0x12214, SDRC_REG(ACTIM_CTRLB_0));
+
+	/* Disble Power Down of CKE due to 1 CKE on combo part */
+	writel(0x00000081, SDRC_REG(POWER));
+
+	/* SDRC_MANUAL command register */
+	/* NOP command */
+	writel(0x00000000, SDRC_REG(MANUAL_0));
+	/* Precharge command */
+	writel(0x00000001, SDRC_REG(MANUAL_0));
+	/* Auto-refresh command */
+	writel(0x00000002, SDRC_REG(MANUAL_0));
+	/* Auto-refresh command */
+	writel(0x00000002, SDRC_REG(MANUAL_0));
+
+	/* SDRC MR0 register Burst length=4 */
+	writel(0x00000032, SDRC_REG(MR_0));
+
+	/* SDRC DLLA control register */
+	writel(0x0000000A, SDRC_REG(DLLA_CTRL));
+
+	return;
+}
+
+/**
+ * @brief Do the necessary pin muxing required for OMAP3EVM. Some pins in OMAP3
+ * do not have alternate modes. We don't program these pins.
+ *
+ * See @ref MUX_VAL for description of the muxing mode.
+ *
+ * @return void
+ */
+static void mux_config(void)
+{
+	/*
+	 * SDRC
+	 * - SDRC_D0-SDRC_D31: Default MUX mode is mode0.
+	 */
+
+	/*
+	 * GPMC
+	 * - GPMC_D0-GPMC_D7: Default MUX mode is mode0.
+	 * - GPMC_NADV_ALE: Default MUX mode is mode0.
+	 * - GPMC_NOE: Default MUX mode is mode0.
+	 * - GPMC_NWE: Default MUX mode is mode0.
+	 * - GPMC_WAIT0: Default MUX mode is mode0.
+	 */
+	MUX_VAL(CP(GPMC_A1),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_A2),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_A3),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_A4),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_A5),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_A6),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_A7),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_A8),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_A9),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_A10),		(IDIS | PTD | DIS | M0));
+
+	MUX_VAL(CP(GPMC_D8),		(IEN  | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_D9),		(IEN  | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_D10),		(IEN  | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_D11),		(IEN  | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_D12),		(IEN  | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_D13),		(IEN  | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_D14),		(IEN  | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_D15),		(IEN  | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_CLK),		(IDIS | PTD | DIS | M0));
+
+	MUX_VAL(CP(GPMC_NBE0_CLE),	(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_NBE1),		(IEN  | PTD | DIS | M0));
+	MUX_VAL(CP(GPMC_NWP),		(IEN  | PTD | DIS | M0));
+
+	MUX_VAL(CP(GPMC_WAIT1),		(IEN  | PTU | EN  | M0));
+
+	/*
+	 * Serial Interface
+	 */
+#if defined(CONFIG_OMAP3EVM_UART1)
+	MUX_VAL(CP(UART1_TX),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(UART1_RTS),		(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(UART1_CTS),		(IEN  | PTU | DIS | M0));
+	MUX_VAL(CP(UART1_RX),		(IEN  | PTD | DIS | M0));
+#elif defined(CONFIG_OMAP3EVM_UART3)
+	MUX_VAL(CP(UART3_CTS_RCTX),	(IEN  | PTD | EN  | M0));
+	MUX_VAL(CP(UART3_RTS_SD),	(IDIS | PTD | DIS | M0));
+	MUX_VAL(CP(UART3_RX_IRRX),	(IEN  | PTD | DIS | M0));
+	MUX_VAL(CP(UART3_TX_IRTX),	(IDIS | PTD | DIS | M0));
+#endif
+}
+
+/**
+ * @brief The basic entry point for board initialization.
+ *
+ * This is called as part of machine init (after arch init).
+ * This is again called with stack in SRAM, so not too many
+ * constructs possible here.
+ *
+ * @return void
+ */
+void board_init(void)
+{
+	int in_sdram = running_in_sdram();
+
+	mux_config();
+	/* Dont reconfigure SDRAM while running in SDRAM! */
+	if (!in_sdram)
+		sdrc_init();
+}
+
+/*
+ * Run-time initialization(s)
+ */
+
+#ifdef CONFIG_DRIVER_SERIAL_NS16550
+
+static struct NS16550_plat serial_plat = {
+	.clock		= 48000000,      /* 48MHz (APLL96/2) */
+	.f_caps		= CONSOLE_STDIN | CONSOLE_STDOUT | CONSOLE_STDERR,
+	.reg_read	= omap_uart_read,
+	.reg_write	= omap_uart_write,
+};
+
+static struct device_d omap3evm_serial_device = {
+	.name		= "serial_ns16550",
+#if defined(CONFIG_OMAP3EVM_UART1)
+	.map_base	= OMAP_UART1_BASE,
+#elif defined(CONFIG_OMAP3EVM_UART3)
+	.map_base	= OMAP_UART3_BASE,
+#endif
+	.size		= 1024,
+	.platform_data	= (void *)&serial_plat,
+};
+
+/**
+ * @brief Initialize the serial port to be used as console.
+ *
+ * @return result of device registration
+ */
+static int omap3evm_init_console(void)
+{
+	return register_device(&omap3evm_serial_device);
+}
+console_initcall(omap3evm_init_console);
+#endif /* CONFIG_DRIVER_SERIAL_NS16550 */
+
+static struct memory_platform_data sram_pdata = {
+	.name	= "ram0",
+	.flags	= DEVFS_RDWR,
+};
+
+static struct device_d sdram_dev = {
+	.name		= "mem",
+	.map_base	= 0x80000000,
+	.size		= 128 * 1024 * 1024,
+	.platform_data	= &sram_pdata,
+};
+
+static int omap3evm_init_devices(void)
+{
+	int ret;
+
+	ret = register_device(&sdram_dev);
+	if (ret)
+		goto failed;
+
+#ifdef CONFIG_GPMC
+	/*
+	 * WP is made high and WAIT1 active Low
+	 */
+	gpmc_generic_init(0x10);
+#endif
+
+	armlinux_add_dram(&sdram_dev);
+
+failed:
+	return ret;
+}
+device_initcall(omap3evm_init_devices);