diff options
Diffstat (limited to 'arch/arm/mach-sa1100/collie.c')
| -rw-r--r-- | arch/arm/mach-sa1100/collie.c | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c new file mode 100644 index 00000000..bd3e1bfd --- /dev/null +++ b/arch/arm/mach-sa1100/collie.c @@ -0,0 +1,389 @@ +/* + * linux/arch/arm/mach-sa1100/collie.c + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + * This file contains all Collie-specific tweaks. + * + * 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. + * + * ChangeLog: + * 2006 Pavel Machek <pavel@ucw.cz> + * 03-06-2004 John Lenz <lenz@cs.wisc.edu> + * 06-04-2002 Chris Larson <kergoth@digitalnemesis.net> + * 04-16-2001 Lineo Japan,Inc. ... + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/tty.h> +#include <linux/delay.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/timer.h> +#include <linux/gpio.h> +#include <linux/pda_power.h> + +#include <mach/hardware.h> +#include <asm/mach-types.h> +#include <asm/irq.h> +#include <asm/setup.h> +#include <mach/collie.h> + +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> +#include <asm/mach/map.h> +#include <asm/mach/serial_sa1100.h> + +#include <asm/hardware/scoop.h> +#include <asm/mach/sharpsl_param.h> +#include <asm/hardware/locomo.h> +#include <mach/mcp.h> + +#include "generic.h" + +static struct resource collie_scoop_resources[] = { + [0] = { + .start = 0x40800000, + .end = 0x40800fff, + .flags = IORESOURCE_MEM, + }, +}; + +static struct scoop_config collie_scoop_setup = { + .io_dir = COLLIE_SCOOP_IO_DIR, + .io_out = COLLIE_SCOOP_IO_OUT, + .gpio_base = COLLIE_SCOOP_GPIO_BASE, +}; + +struct platform_device colliescoop_device = { + .name = "sharp-scoop", + .id = -1, + .dev = { + .platform_data = &collie_scoop_setup, + }, + .num_resources = ARRAY_SIZE(collie_scoop_resources), + .resource = collie_scoop_resources, +}; + +static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = { + { + .dev = &colliescoop_device.dev, + .irq = COLLIE_IRQ_GPIO_CF_IRQ, + .cd_irq = COLLIE_IRQ_GPIO_CF_CD, + .cd_irq_str = "PCMCIA0 CD", + }, +}; + +static struct scoop_pcmcia_config collie_pcmcia_config = { + .devs = &collie_pcmcia_scoop[0], + .num_devs = 1, +}; + +static struct mcp_plat_data collie_mcp_data = { + .mccr0 = MCCR0_ADM | MCCR0_ExtClk, + .sclk_rate = 9216000, + .gpio_base = COLLIE_TC35143_GPIO_BASE, +}; + +/* + * Collie AC IN + */ +static int collie_power_init(struct device *dev) +{ + int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in"); + if (ret) + goto err_gpio_req; + + ret = gpio_direction_input(COLLIE_GPIO_AC_IN); + if (ret) + goto err_gpio_in; + + return 0; + +err_gpio_in: + gpio_free(COLLIE_GPIO_AC_IN); +err_gpio_req: + return ret; +} + +static void collie_power_exit(struct device *dev) +{ + gpio_free(COLLIE_GPIO_AC_IN); +} + +static int collie_power_ac_online(void) +{ + return gpio_get_value(COLLIE_GPIO_AC_IN) == 2; +} + +static char *collie_ac_supplied_to[] = { + "main-battery", + "backup-battery", +}; + +static struct pda_power_pdata collie_power_data = { + .init = collie_power_init, + .is_ac_online = collie_power_ac_online, + .exit = collie_power_exit, + .supplied_to = collie_ac_supplied_to, + .num_supplicants = ARRAY_SIZE(collie_ac_supplied_to), +}; + +static struct resource collie_power_resource[] = { + { + .name = "ac", + .start = gpio_to_irq(COLLIE_GPIO_AC_IN), + .end = gpio_to_irq(COLLIE_GPIO_AC_IN), + .flags = IORESOURCE_IRQ | + IORESOURCE_IRQ_HIGHEDGE | + IORESOURCE_IRQ_LOWEDGE, + }, +}; + +static struct platform_device collie_power_device = { + .name = "pda-power", + .id = -1, + .dev.platform_data = &collie_power_data, + .resource = collie_power_resource, + .num_resources = ARRAY_SIZE(collie_power_resource), +}; + +#ifdef CONFIG_SHARP_LOCOMO +/* + * low-level UART features. + */ +struct platform_device collie_locomo_device; + +static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl) +{ + if (mctrl & TIOCM_RTS) + locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0); + else + locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1); + + if (mctrl & TIOCM_DTR) + locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0); + else + locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1); +} + +static u_int collie_uart_get_mctrl(struct uart_port *port) +{ + int ret = TIOCM_CD; + unsigned int r; + + r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR); + if (r == -ENODEV) + return ret; + if (r & LOCOMO_GPIO_CTS) + ret |= TIOCM_CTS; + if (r & LOCOMO_GPIO_DSR) + ret |= TIOCM_DSR; + + return ret; +} + +static struct sa1100_port_fns collie_port_fns __initdata = { + .set_mctrl = collie_uart_set_mctrl, + .get_mctrl = collie_uart_get_mctrl, +}; + +static int collie_uart_probe(struct locomo_dev *dev) +{ + return 0; +} + +static int collie_uart_remove(struct locomo_dev *dev) +{ + return 0; +} + +static struct locomo_driver collie_uart_driver = { + .drv = { + .name = "collie_uart", + }, + .devid = LOCOMO_DEVID_UART, + .probe = collie_uart_probe, + .remove = collie_uart_remove, +}; + +static int __init collie_uart_init(void) +{ + return locomo_driver_register(&collie_uart_driver); +} +device_initcall(collie_uart_init); + +#endif + + +static struct resource locomo_resources[] = { + [0] = { + .start = 0x40000000, + .end = 0x40001fff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_GPIO25, + .end = IRQ_GPIO25, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct locomo_platform_data locomo_info = { + .irq_base = IRQ_BOARD_START, +}; + +struct platform_device collie_locomo_device = { + .name = "locomo", + .id = 0, + .dev = { + .platform_data = &locomo_info, + }, + .num_resources = ARRAY_SIZE(locomo_resources), + .resource = locomo_resources, +}; + +static struct platform_device *devices[] __initdata = { + &collie_locomo_device, + &colliescoop_device, + &collie_power_device, +}; + +static struct mtd_partition collie_partitions[] = { + { + .name = "bootloader", + .offset = 0, + .size = 0x000C0000, + .mask_flags = MTD_WRITEABLE + }, { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = 0x00100000, + }, { + .name = "rootfs", + .offset = MTDPART_OFS_APPEND, + .size = 0x00e20000, + } +}; + +static int collie_flash_init(void) +{ + int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable"); + if (rc) + return rc; + + rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1); + if (rc) + gpio_free(COLLIE_GPIO_VPEN); + + return rc; +} + +static void collie_set_vpp(int vpp) +{ + gpio_set_value(COLLIE_GPIO_VPEN, vpp); +} + +static void collie_flash_exit(void) +{ + gpio_free(COLLIE_GPIO_VPEN); +} + +static struct flash_platform_data collie_flash_data = { + .map_name = "cfi_probe", + .init = collie_flash_init, + .set_vpp = collie_set_vpp, + .exit = collie_flash_exit, + .parts = collie_partitions, + .nr_parts = ARRAY_SIZE(collie_partitions), +}; + +static struct resource collie_flash_resources[] = { + { + .start = SA1100_CS0_PHYS, + .end = SA1100_CS0_PHYS + SZ_32M - 1, + .flags = IORESOURCE_MEM, + } +}; + +static void __init collie_init(void) +{ + int ret = 0; + + /* cpu initialize */ + GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | + GPIO_MCP_CLK | GPIO_32_768kHz; + + GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | + GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | + GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | + _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON | + _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz; + + PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | + PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | + PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM; + + PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY | + _COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC; + + PGSR = _COLLIE_GPIO_nREMOCON_ON; + + PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4; + + PCFR = PCFR_OPDE; + + GPSR |= _COLLIE_GPIO_UCB1x00_RESET; + + + platform_scoop_config = &collie_pcmcia_config; + + ret = platform_add_devices(devices, ARRAY_SIZE(devices)); + if (ret) { + printk(KERN_WARNING "collie: Unable to register LoCoMo device\n"); + } + + sa11x0_register_mtd(&collie_flash_data, collie_flash_resources, + ARRAY_SIZE(collie_flash_resources)); + sa11x0_register_mcp(&collie_mcp_data); + + sharpsl_save_param(); +} + +static struct map_desc collie_io_desc[] __initdata = { + { /* 32M main flash (cs0) */ + .virtual = 0xe8000000, + .pfn = __phys_to_pfn(0x00000000), + .length = 0x02000000, + .type = MT_DEVICE + }, { /* 32M boot flash (cs1) */ + .virtual = 0xea000000, + .pfn = __phys_to_pfn(0x08000000), + .length = 0x02000000, + .type = MT_DEVICE + } +}; + +static void __init collie_map_io(void) +{ + sa1100_map_io(); + iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc)); + +#ifdef CONFIG_SHARP_LOCOMO + sa1100_register_uart_fns(&collie_port_fns); +#endif + sa1100_register_uart(0, 3); + sa1100_register_uart(1, 1); +} + +MACHINE_START(COLLIE, "Sharp-Collie") + .map_io = collie_map_io, + .init_irq = sa1100_init_irq, + .timer = &sa1100_timer, + .init_machine = collie_init, +MACHINE_END |