diff options
Diffstat (limited to 'arch/arm/mach-gemini/devices.c')
| -rw-r--r-- | arch/arm/mach-gemini/devices.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/arch/arm/mach-gemini/devices.c b/arch/arm/mach-gemini/devices.c new file mode 100644 index 000000000000..6b525253d027 --- /dev/null +++ b/arch/arm/mach-gemini/devices.c | |||
| @@ -0,0 +1,92 @@ | |||
| 1 | /* | ||
| 2 | * Common devices definition for Gemini | ||
| 3 | * | ||
| 4 | * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt> | ||
| 5 | * | ||
| 6 | * This program is free software; you can redistribute it and/or modify | ||
| 7 | * it under the terms of the GNU General Public License version 2 as | ||
| 8 | * published by the Free Software Foundation. | ||
| 9 | */ | ||
| 10 | #include <linux/kernel.h> | ||
| 11 | #include <linux/init.h> | ||
| 12 | #include <linux/io.h> | ||
| 13 | #include <linux/platform_device.h> | ||
| 14 | #include <linux/serial_8250.h> | ||
| 15 | #include <linux/mtd/physmap.h> | ||
| 16 | |||
| 17 | #include <mach/irqs.h> | ||
| 18 | #include <mach/hardware.h> | ||
| 19 | #include <mach/global_reg.h> | ||
| 20 | |||
| 21 | static struct plat_serial8250_port serial_platform_data[] = { | ||
| 22 | { | ||
| 23 | .membase = (void *)IO_ADDRESS(GEMINI_UART_BASE), | ||
| 24 | .mapbase = GEMINI_UART_BASE, | ||
| 25 | .irq = IRQ_UART, | ||
| 26 | .uartclk = UART_CLK, | ||
| 27 | .regshift = 2, | ||
| 28 | .iotype = UPIO_MEM, | ||
| 29 | .type = PORT_16550A, | ||
| 30 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_FIXED_TYPE, | ||
| 31 | }, | ||
| 32 | {}, | ||
| 33 | }; | ||
| 34 | |||
| 35 | static struct platform_device serial_device = { | ||
| 36 | .name = "serial8250", | ||
| 37 | .id = PLAT8250_DEV_PLATFORM, | ||
| 38 | .dev = { | ||
| 39 | .platform_data = serial_platform_data, | ||
| 40 | }, | ||
| 41 | }; | ||
| 42 | |||
| 43 | int platform_register_uart(void) | ||
| 44 | { | ||
| 45 | return platform_device_register(&serial_device); | ||
| 46 | } | ||
| 47 | |||
| 48 | static struct resource flash_resource = { | ||
| 49 | .start = GEMINI_FLASH_BASE, | ||
| 50 | .flags = IORESOURCE_MEM, | ||
| 51 | }; | ||
| 52 | |||
| 53 | static struct physmap_flash_data pflash_platform_data = {}; | ||
| 54 | |||
| 55 | static struct platform_device pflash_device = { | ||
| 56 | .name = "physmap-flash", | ||
| 57 | .id = 0, | ||
| 58 | .dev = { | ||
| 59 | .platform_data = &pflash_platform_data, | ||
| 60 | }, | ||
| 61 | .resource = &flash_resource, | ||
| 62 | .num_resources = 1, | ||
| 63 | }; | ||
| 64 | |||
| 65 | int platform_register_pflash(unsigned int size, struct mtd_partition *parts, | ||
| 66 | unsigned int nr_parts) | ||
| 67 | { | ||
| 68 | unsigned int reg; | ||
| 69 | |||
| 70 | reg = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_STATUS); | ||
| 71 | |||
| 72 | if ((reg & FLASH_TYPE_MASK) != FLASH_TYPE_PARALLEL) | ||
| 73 | return -ENXIO; | ||
| 74 | |||
| 75 | if (reg & FLASH_WIDTH_16BIT) | ||
| 76 | pflash_platform_data.width = 2; | ||
| 77 | else | ||
| 78 | pflash_platform_data.width = 1; | ||
| 79 | |||
| 80 | /* enable parallel flash pins and disable others */ | ||
| 81 | reg = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL); | ||
| 82 | reg &= ~PFLASH_PADS_DISABLE; | ||
| 83 | reg |= SFLASH_PADS_DISABLE | NAND_PADS_DISABLE; | ||
| 84 | __raw_writel(reg, IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL); | ||
| 85 | |||
| 86 | flash_resource.end = flash_resource.start + size - 1; | ||
| 87 | |||
| 88 | pflash_platform_data.parts = parts; | ||
| 89 | pflash_platform_data.nr_parts = nr_parts; | ||
| 90 | |||
| 91 | return platform_device_register(&pflash_device); | ||
| 92 | } | ||
