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Diffstat (limited to 'arch/arm/mach-kirkwood/lacie_v2-common.c')
-rw-r--r--arch/arm/mach-kirkwood/lacie_v2-common.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/arch/arm/mach-kirkwood/lacie_v2-common.c b/arch/arm/mach-kirkwood/lacie_v2-common.c
new file mode 100644
index 00000000000..d3ea1b6c8a0
--- /dev/null
+++ b/arch/arm/mach-kirkwood/lacie_v2-common.c
@@ -0,0 +1,127 @@
+/*
+ * 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);
+ }
+}
+
+/*****************************************************************************
+ * Timer
+ ****************************************************************************/
+
+static void lacie_v2_timer_init(void)
+{
+ kirkwood_tclk = 166666667;
+ orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
+}
+
+struct sys_timer lacie_v2_timer = {
+ .init = lacie_v2_timer_init,
+};