Davinci: tnetv107x evm board initial support

Added support for tnetv107x evaluation module.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 174 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/board-tnetv107x-evm.c b/arch/arm/mach-davinci/board-tnetv107x-evm.c
new file mode 100644
index 00000000000..fe2a9d9c8bb
--- /dev/null
+++ b/arch/arm/mach-davinci/board-tnetv107x-evm.c
@@ -0,0 +1,174 @@
+/*
+ * Texas Instruments TNETV107X EVM Board Support
+ *
+ * Copyright (C) 2010 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/ratelimit.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+
+#include <mach/irqs.h>
+#include <mach/edma.h>
+#include <mach/mux.h>
+#include <mach/cp_intc.h>
+#include <mach/tnetv107x.h>
+
+#define EVM_MMC_WP_GPIO		21
+#define EVM_MMC_CD_GPIO		24
+
+static int initialize_gpio(int gpio, char *desc)
+{
+	int ret;
+
+	ret = gpio_request(gpio, desc);
+	if (ret < 0) {
+		pr_err_ratelimited("cannot open %s gpio\n", desc);
+		return -ENOSYS;
+	}
+	gpio_direction_input(gpio);
+	return gpio;
+}
+
+static int mmc_get_cd(int index)
+{
+	static int gpio;
+
+	if (!gpio)
+		gpio = initialize_gpio(EVM_MMC_CD_GPIO, "mmc card detect");
+
+	if (gpio < 0)
+		return gpio;
+
+	return gpio_get_value(gpio) ? 0 : 1;
+}
+
+static int mmc_get_ro(int index)
+{
+	static int gpio;
+
+	if (!gpio)
+		gpio = initialize_gpio(EVM_MMC_WP_GPIO, "mmc write protect");
+
+	if (gpio < 0)
+		return gpio;
+
+	return gpio_get_value(gpio) ? 1 : 0;
+}
+
+static struct davinci_mmc_config mmc_config = {
+	.get_cd		= mmc_get_cd,
+	.get_ro		= mmc_get_ro,
+	.wires		= 4,
+	.max_freq	= 50000000,
+	.caps		= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
+	.version	= MMC_CTLR_VERSION_1,
+};
+
+static const short sdio1_pins[] __initdata = {
+	TNETV107X_SDIO1_CLK_1,		TNETV107X_SDIO1_CMD_1,
+	TNETV107X_SDIO1_DATA0_1,	TNETV107X_SDIO1_DATA1_1,
+	TNETV107X_SDIO1_DATA2_1,	TNETV107X_SDIO1_DATA3_1,
+	TNETV107X_GPIO21,		TNETV107X_GPIO24,
+	-1
+};
+
+static const short uart1_pins[] __initdata = {
+	TNETV107X_UART1_RD,		TNETV107X_UART1_TD,
+	-1
+};
+
+static struct mtd_partition nand_partitions[] = {
+	/* bootloader (U-Boot, etc) in first 12 sectors */
+	{
+		.name		= "bootloader",
+		.offset		= 0,
+		.size		= (12*SZ_128K),
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	/* bootloader params in the next sector */
+	{
+		.name		= "params",
+		.offset		= MTDPART_OFS_NXTBLK,
+		.size		= SZ_128K,
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	/* kernel */
+	{
+		.name		= "kernel",
+		.offset		= MTDPART_OFS_NXTBLK,
+		.size		= SZ_4M,
+		.mask_flags	= 0,
+	},
+	/* file system */
+	{
+		.name		= "filesystem",
+		.offset		= MTDPART_OFS_NXTBLK,
+		.size		= MTDPART_SIZ_FULL,
+		.mask_flags	= 0,
+	}
+};
+
+static struct davinci_nand_pdata nand_config = {
+	.mask_cle	= 0x4000,
+	.mask_ale	= 0x2000,
+	.parts		= nand_partitions,
+	.nr_parts	= ARRAY_SIZE(nand_partitions),
+	.ecc_mode	= NAND_ECC_HW,
+	.options	= NAND_USE_FLASH_BBT,
+	.ecc_bits	= 1,
+};
+
+static struct davinci_uart_config serial_config __initconst = {
+	.enabled_uarts	= BIT(1),
+};
+
+static struct tnetv107x_device_info evm_device_info __initconst = {
+	.serial_config		= &serial_config,
+	.mmc_config[1]		= &mmc_config,	/* controller 1 */
+	.nand_config[0]		= &nand_config,	/* chip select 0 */
+};
+
+static __init void tnetv107x_evm_board_init(void)
+{
+	davinci_cfg_reg_list(sdio1_pins);
+	davinci_cfg_reg_list(uart1_pins);
+
+	tnetv107x_devices_init(&evm_device_info);
+}
+
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+static int __init tnetv107x_evm_console_init(void)
+{
+	return add_preferred_console("ttyS", 0, "115200");
+}
+console_initcall(tnetv107x_evm_console_init);
+#endif
+
+MACHINE_START(TNETV107X, "TNETV107X EVM")
+	.phys_io	= TNETV107X_IO_BASE,
+	.io_pg_offst	= (TNETV107X_IO_VIRT >> 18) & 0xfffc,
+	.boot_params	= (TNETV107X_DDR_BASE + 0x100),
+	.map_io		= tnetv107x_init,
+	.init_irq	= cp_intc_init,
+	.timer		= &davinci_timer,
+	.init_machine	= tnetv107x_evm_board_init,
+MACHINE_END