diff options
Diffstat (limited to 'arch/arm/mach-omap/board-perseus2.c')
| -rw-r--r-- | arch/arm/mach-omap/board-perseus2.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/arch/arm/mach-omap/board-perseus2.c b/arch/arm/mach-omap/board-perseus2.c new file mode 100644 index 0000000..64515ae --- /dev/null +++ b/arch/arm/mach-omap/board-perseus2.c @@ -0,0 +1,189 @@ +/* + * linux/arch/arm/mach-omap/board-perseus2.c + * + * Modified from board-generic.c + * + * Original OMAP730 support by Jean Pihet <j-pihet@ti.com> + * Updated for 2.6 by Kevin Hilman <kjh@hilman.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> + +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> +#include <asm/mach/map.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/mux.h> +#include <asm/arch/fpga.h> + +#include "common.h" + +static struct resource smc91x_resources[] = { + [0] = { + .start = H2P2_DBG_FPGA_ETHR_START, /* Physical */ + .end = H2P2_DBG_FPGA_ETHR_START + 0xf, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = INT_730_MPU_EXT_NIRQ, + .end = 0, + .flags = IORESOURCE_IRQ, + }, +}; + +static int __initdata p2_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 0}; + +static struct mtd_partition p2_partitions[] = { + /* bootloader (U-Boot, etc) in first sector */ + { + .name = "bootloader", + .offset = 0, + .size = SZ_128K, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + /* bootloader params in the next sector */ + { + .name = "params", + .offset = MTDPART_OFS_APPEND, + .size = SZ_128K, + .mask_flags = 0, + }, + /* kernel */ + { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = SZ_2M, + .mask_flags = 0 + }, + /* rest of flash is a file system */ + { + .name = "rootfs", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + .mask_flags = 0 + }, +}; + +static struct flash_platform_data p2_flash_data = { + .map_name = "cfi_probe", + .width = 2, + .parts = p2_partitions, + .nr_parts = ARRAY_SIZE(p2_partitions), +}; + +static struct resource p2_flash_resource = { + .start = OMAP_FLASH_0_START, + .end = OMAP_FLASH_0_START + OMAP_FLASH_0_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device p2_flash_device = { + .name = "omapflash", + .id = 0, + .dev = { + .platform_data = &p2_flash_data, + }, + .num_resources = 1, + .resource = &p2_flash_resource, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; + +static struct platform_device *devices[] __initdata = { + &p2_flash_device, + &smc91x_device, +}; + +static void __init omap_perseus2_init(void) +{ + (void) platform_add_devices(devices, ARRAY_SIZE(devices)); +} + +static void __init perseus2_init_smc91x(void) +{ + fpga_write(1, H2P2_DBG_FPGA_LAN_RESET); + mdelay(50); + fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1, + H2P2_DBG_FPGA_LAN_RESET); + mdelay(50); +} + +void omap_perseus2_init_irq(void) +{ + omap_init_irq(); + omap_gpio_init(); + perseus2_init_smc91x(); +} + +/* Only FPGA needs to be mapped here. All others are done with ioremap */ +static struct map_desc omap_perseus2_io_desc[] __initdata = { + {H2P2_DBG_FPGA_BASE, H2P2_DBG_FPGA_START, H2P2_DBG_FPGA_SIZE, + MT_DEVICE}, +}; + +static void __init omap_perseus2_map_io(void) +{ + omap_map_io(); + iotable_init(omap_perseus2_io_desc, + ARRAY_SIZE(omap_perseus2_io_desc)); + + /* Early, board-dependent init */ + + /* + * Hold GSM Reset until needed + */ + omap_writew(omap_readw(OMAP730_DSP_M_CTL) & ~1, OMAP730_DSP_M_CTL); + + /* + * UARTs -> done automagically by 8250 driver + */ + + /* + * CSx timings, GPIO Mux ... setup + */ + + /* Flash: CS0 timings setup */ + omap_writel(0x0000fff3, OMAP730_FLASH_CFG_0); + omap_writel(0x00000088, OMAP730_FLASH_ACFG_0); + + /* + * Ethernet support trough the debug board + * CS1 timings setup + */ + omap_writel(0x0000fff3, OMAP730_FLASH_CFG_1); + omap_writel(0x00000000, OMAP730_FLASH_ACFG_1); + + /* + * Configure MPU_EXT_NIRQ IO in IO_CONF9 register, + * It is used as the Ethernet controller interrupt + */ + omap_writel(omap_readl(OMAP730_IO_CONF_9) & 0x1FFFFFFF, OMAP730_IO_CONF_9); + omap_serial_init(p2_serial_ports); +} + +MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2") + MAINTAINER("Kevin Hilman <kjh@hilman.org>") + BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000) + BOOT_PARAMS(0x10000100) + MAPIO(omap_perseus2_map_io) + INITIRQ(omap_perseus2_init_irq) + INIT_MACHINE(omap_perseus2_init) + .timer = &omap_timer, +MACHINE_END |