| Paulius Zaleckas | 59d3a19 | 2009-03-26 10:06:08 +0200 | [diff] [blame] | 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 | } |