/* * linux/arch/arm/mach-sa1100/hackkit.c * * Copyright (C) 2002 Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de> * * This file contains all HackKit tweaks. Based on original work from * Nicolas Pitre's assabet fixes * * 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/init.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/tty.h> #include <linux/module.h> #include <linux/errno.h> #include <linux/cpufreq.h> #include <linux/serial_core.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <asm/hardware.h> #include <asm/mach-types.h> #include <asm/setup.h> #include <asm/page.h> #include <asm/pgtable.h> #include <asm/irq.h> #include <asm/mach/arch.h> #include <asm/mach/flash.h> #include <asm/mach/map.h> #include <asm/mach/irq.h> #include <asm/mach/serial_sa1100.h> #include "generic.h" /********************************************************************** * prototypes */ /* init funcs */ static void __init hackkit_map_io(void); static u_int hackkit_get_mctrl(struct uart_port *port); static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl); static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate); /********************************************************************** * global data */ /********************************************************************** * static data */ static struct map_desc hackkit_io_desc[] __initdata = { { /* Flash bank 0 */ .virtual = 0xe8000000, .pfn = __phys_to_pfn(0x00000000), .length = 0x01000000, .type = MT_DEVICE }, }; static struct sa1100_port_fns hackkit_port_fns __initdata = { .set_mctrl = hackkit_set_mctrl, .get_mctrl = hackkit_get_mctrl, .pm = hackkit_uart_pm, }; /********************************************************************** * Static functions */ static void __init hackkit_map_io(void) { sa1100_map_io(); iotable_init(hackkit_io_desc, ARRAY_SIZE(hackkit_io_desc)); sa1100_register_uart_fns(&hackkit_port_fns); sa1100_register_uart(0, 1); /* com port */ sa1100_register_uart(1, 2); sa1100_register_uart(2, 3); /* radio module */ Ser1SDCR0 |= SDCR0_SUS; } /** * hackkit_uart_pm - powermgmt callback function for system 3 UART * @port: uart port structure * @state: pm state * @oldstate: old pm state * */ static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate) { /* TODO: switch on/off uart in powersave mode */ } /* * Note! this can be called from IRQ context. * FIXME: No modem ctrl lines yet. */ static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl) { #if 0 if (port->mapbase == _Ser1UTCR0) { u_int set = 0, clear = 0; if (mctrl & TIOCM_RTS) set |= PT_CTRL2_RS1_RTS; else clear |= PT_CTRL2_RS1_RTS; if (mctrl & TIOCM_DTR) set |= PT_CTRL2_RS1_DTR; else clear |= PT_CTRL2_RS1_DTR; PTCTRL2_clear(clear); PTCTRL2_set(set); } #endif } static u_int hackkit_get_mctrl(struct uart_port *port) { u_int ret = 0; #if 0 u_int irqsr = PT_IRQSR; /* need 2 reads to read current value */ irqsr = PT_IRQSR; /* TODO: check IRQ source register for modem/com status lines and set them correctly. */ #endif ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR; return ret; } static struct mtd_partition hackkit_partitions[] = { { .name = "BLOB", .size = 0x00040000, .offset = 0x00000000, .mask_flags = MTD_WRITEABLE, /* force read-only */ }, { .name = "config", .size = 0x00040000, .offset = MTDPART_OFS_APPEND, }, { .name = "kernel", .size = 0x00100000, .offset = MTDPART_OFS_APPEND, }, { .name = "initrd", .size = 0x00180000, .offset = MTDPART_OFS_APPEND, }, { .name = "rootfs", .size = 0x700000, .offset = MTDPART_OFS_APPEND, }, { .name = "data", .size = MTDPART_SIZ_FULL, .offset = MTDPART_OFS_APPEND, } }; static struct flash_platform_data hackkit_flash_data = { .map_name = "cfi_probe", .parts = hackkit_partitions, .nr_parts = ARRAY_SIZE(hackkit_partitions), }; static struct resource hackkit_flash_resource = { .start = SA1100_CS0_PHYS, .end = SA1100_CS0_PHYS + SZ_32M, .flags = IORESOURCE_MEM, }; static void __init hackkit_init(void) { sa11x0_set_flash_data(&hackkit_flash_data, &hackkit_flash_resource, 1); } /********************************************************************** * Exported Functions */ MACHINE_START(HACKKIT, "HackKit Cpu Board") .phys_io = 0x80000000, .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, .boot_params = 0xc0000100, .map_io = hackkit_map_io, .init_irq = sa1100_init_irq, .timer = &sa1100_timer, .init_machine = hackkit_init, MACHINE_END