Merge branch 'master' into tk71

[mv-sheeva.git] / arch / arm / mach-kirkwood / lacie_v2-common.c

diff --git a/arch/arm/mach-kirkwood/lacie_v2-common.c b/arch/arm/mach-kirkwood/lacie_v2-common.c
new file mode 100644 (file)
index 0000000..285edab
--- /dev/null
+++ b/arch/arm/mach-kirkwood/lacie_v2-common.c
@@ -0,0 +1,113 @@
+/*
+ * arch/arm/mach-kirkwood/lacie_v2-common.c
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mtd/physmap.h>
+#include <linux/spi/flash.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+#include <linux/i2c/at24.h>
+#include <linux/gpio.h>
+#include <asm/mach/time.h>
+#include <mach/kirkwood.h>
+#include <mach/irqs.h>
+#include <plat/time.h>
+#include "common.h"
+
+/*****************************************************************************
+ * 512KB SPI Flash on Boot Device (MACRONIX MX25L4005)
+ ****************************************************************************/
+
+static struct mtd_partition lacie_v2_flash_parts[] = {
+       {
+               .name = "u-boot",
+               .size = MTDPART_SIZ_FULL,
+               .offset = 0,
+               .mask_flags = MTD_WRITEABLE, /* force read-only */
+       },
+};
+
+static const struct flash_platform_data lacie_v2_flash = {
+       .type           = "mx25l4005a",
+       .name           = "spi_flash",
+       .parts          = lacie_v2_flash_parts,
+       .nr_parts       = ARRAY_SIZE(lacie_v2_flash_parts),
+};
+
+static struct spi_board_info __initdata lacie_v2_spi_slave_info[] = {
+       {
+               .modalias       = "m25p80",
+               .platform_data  = &lacie_v2_flash,
+               .irq            = -1,
+               .max_speed_hz   = 20000000,
+               .bus_num        = 0,
+               .chip_select    = 0,
+       },
+};
+
+void __init lacie_v2_register_flash(void)
+{
+       spi_register_board_info(lacie_v2_spi_slave_info,
+                               ARRAY_SIZE(lacie_v2_spi_slave_info));
+       kirkwood_spi_init();
+}
+
+/*****************************************************************************
+ * I2C devices
+ ****************************************************************************/
+
+static struct at24_platform_data at24c04 = {
+       .byte_len       = SZ_4K / 8,
+       .page_size      = 16,
+};
+
+/*
+ * i2c addr | chip         | description
+ * 0x50     | HT24LC04     | eeprom (512B)
+ */
+
+static struct i2c_board_info __initdata lacie_v2_i2c_info[] = {
+       {
+               I2C_BOARD_INFO("24c04", 0x50),
+               .platform_data  = &at24c04,
+       }
+};
+
+void __init lacie_v2_register_i2c_devices(void)
+{
+       kirkwood_i2c_init();
+       i2c_register_board_info(0, lacie_v2_i2c_info,
+                               ARRAY_SIZE(lacie_v2_i2c_info));
+}
+
+/*****************************************************************************
+ * Hard Disk power
+ ****************************************************************************/
+
+static int __initdata lacie_v2_gpio_hdd_power[] = { 16, 17, 41, 42, 43 };
+
+void __init lacie_v2_hdd_power_init(int hdd_num)
+{
+       int i;
+       int err;
+
+       /* Power up all hard disks. */
+       for (i = 0; i < hdd_num; i++) {
+               err = gpio_request(lacie_v2_gpio_hdd_power[i], NULL);
+               if (err == 0) {
+                       err = gpio_direction_output(
+                                       lacie_v2_gpio_hdd_power[i], 1);
+                       /* Free the HDD power GPIOs. This allow user-space to
+                        * configure them via the gpiolib sysfs interface. */
+                       gpio_free(lacie_v2_gpio_hdd_power[i]);
+               }
+               if (err)
+                       pr_err("Failed to power up HDD%d\n", i + 1);
+       }
+}