diff options
Diffstat (limited to 'arch/arm/mach-orion5x/edmini_v2-setup.c')
| -rw-r--r-- | arch/arm/mach-orion5x/edmini_v2-setup.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/arch/arm/mach-orion5x/edmini_v2-setup.c b/arch/arm/mach-orion5x/edmini_v2-setup.c new file mode 100644 index 00000000..14761551 --- /dev/null +++ b/arch/arm/mach-orion5x/edmini_v2-setup.c @@ -0,0 +1,176 @@ +/* + * arch/arm/mach-orion5x/edmini_v2-setup.c + * + * LaCie Ethernet Disk mini V2 Setup + * + * Copyright (C) 2008 Christopher Moore <moore@free.fr> + * Copyright (C) 2008 Albert Aribaud <albert.aribaud@free.fr> + * + * 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. + */ + +/* + * TODO: add Orion USB device port init when kernel.org support is added. + * TODO: add flash write support: see below. + * TODO: add power-off support. + * TODO: add I2C EEPROM support. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/pci.h> +#include <linux/irq.h> +#include <linux/mtd/physmap.h> +#include <linux/mv643xx_eth.h> +#include <linux/leds.h> +#include <linux/gpio_keys.h> +#include <linux/input.h> +#include <linux/i2c.h> +#include <linux/ata_platform.h> +#include <linux/gpio.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/pci.h> +#include <mach/orion5x.h> +#include "common.h" +#include "mpp.h" + +/***************************************************************************** + * EDMINI_V2 Info + ****************************************************************************/ + +/* + * 512KB NOR flash Device bus boot chip select + */ + +#define EDMINI_V2_NOR_BOOT_BASE 0xfff80000 +#define EDMINI_V2_NOR_BOOT_SIZE SZ_512K + +/***************************************************************************** + * 512KB NOR Flash on BOOT Device + ****************************************************************************/ + +/* + * Currently the MTD code does not recognize the MX29LV400CBCT as a bottom + * -type device. This could cause risks of accidentally erasing critical + * flash sectors. We thus define a single, write-protected partition covering + * the whole flash. + * TODO: once the flash part TOP/BOTTOM detection issue is sorted out in the MTD + * code, break this into at least three partitions: 'u-boot code', 'u-boot + * environment' and 'whatever is left'. + */ + +static struct mtd_partition edmini_v2_partitions[] = { + { + .name = "Full512kb", + .size = 0x00080000, + .offset = 0x00000000, + .mask_flags = MTD_WRITEABLE, + }, +}; + +static struct physmap_flash_data edmini_v2_nor_flash_data = { + .width = 1, + .parts = edmini_v2_partitions, + .nr_parts = ARRAY_SIZE(edmini_v2_partitions), +}; + +static struct resource edmini_v2_nor_flash_resource = { + .flags = IORESOURCE_MEM, + .start = EDMINI_V2_NOR_BOOT_BASE, + .end = EDMINI_V2_NOR_BOOT_BASE + + EDMINI_V2_NOR_BOOT_SIZE - 1, +}; + +static struct platform_device edmini_v2_nor_flash = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &edmini_v2_nor_flash_data, + }, + .num_resources = 1, + .resource = &edmini_v2_nor_flash_resource, +}; + +/***************************************************************************** + * Ethernet + ****************************************************************************/ + +static struct mv643xx_eth_platform_data edmini_v2_eth_data = { + .phy_addr = 8, +}; + +/***************************************************************************** + * RTC 5C372a on I2C bus + ****************************************************************************/ + +#define EDMINIV2_RTC_GPIO 3 + +static struct i2c_board_info __initdata edmini_v2_i2c_rtc = { + I2C_BOARD_INFO("rs5c372a", 0x32), + .irq = 0, +}; + +/***************************************************************************** + * General Setup + ****************************************************************************/ +static unsigned int edminiv2_mpp_modes[] __initdata = { + MPP0_UNUSED, + MPP1_UNUSED, + MPP2_UNUSED, + MPP3_GPIO, /* RTC interrupt */ + MPP4_UNUSED, + MPP5_UNUSED, + MPP6_UNUSED, + MPP7_UNUSED, + MPP8_UNUSED, + MPP9_UNUSED, + MPP10_UNUSED, + MPP11_UNUSED, + MPP12_SATA_LED, /* SATA 0 presence */ + MPP13_SATA_LED, /* SATA 1 presence */ + MPP14_SATA_LED, /* SATA 0 active */ + MPP15_SATA_LED, /* SATA 1 active */ + /* 16: Power LED control (0 = On, 1 = Off) */ + MPP16_GPIO, + /* 17: Power LED control select (0 = CPLD, 1 = GPIO16) */ + MPP17_GPIO, + /* 18: Power button status (0 = Released, 1 = Pressed) */ + MPP18_GPIO, + MPP19_UNUSED, + 0, +}; + +void __init edmini_v2_init(void) +{ + orion5x_mpp_conf(edminiv2_mpp_modes); + + /* + * Configure peripherals. + */ + orion5x_ehci0_init(); + orion5x_eth_init(&edmini_v2_eth_data); + + mvebu_mbus_add_window("devbus-boot", EDMINI_V2_NOR_BOOT_BASE, + EDMINI_V2_NOR_BOOT_SIZE); + platform_device_register(&edmini_v2_nor_flash); + + pr_notice("edmini_v2: USB device port, flash write and power-off " + "are not yet supported.\n"); + + /* Get RTC IRQ and register the chip */ + if (gpio_request(EDMINIV2_RTC_GPIO, "rtc") == 0) { + if (gpio_direction_input(EDMINIV2_RTC_GPIO) == 0) + edmini_v2_i2c_rtc.irq = gpio_to_irq(EDMINIV2_RTC_GPIO); + else + gpio_free(EDMINIV2_RTC_GPIO); + } + + if (edmini_v2_i2c_rtc.irq == 0) + pr_warning("edmini_v2: failed to get RTC IRQ\n"); + + i2c_register_board_info(0, &edmini_v2_i2c_rtc, 1); +} |