diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-footbridge/netwinder-hw.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-footbridge/netwinder-hw.c | 687 |
1 files changed, 0 insertions, 687 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-footbridge/netwinder-hw.c b/ANDROID_3.4.5/arch/arm/mach-footbridge/netwinder-hw.c deleted file mode 100644 index cac9f67e..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-footbridge/netwinder-hw.c +++ /dev/null @@ -1,687 +0,0 @@ -/* - * linux/arch/arm/mach-footbridge/netwinder-hw.c - * - * Netwinder machine fixup - * - * Copyright (C) 1998, 1999 Russell King, Phil Blundell - */ -#include <linux/module.h> -#include <linux/ioport.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/spinlock.h> - -#include <asm/hardware/dec21285.h> -#include <asm/leds.h> -#include <asm/mach-types.h> -#include <asm/setup.h> -#include <asm/system_misc.h> - -#include <asm/mach/arch.h> - -#include "common.h" - -#define IRDA_IO_BASE 0x180 -#define GP1_IO_BASE 0x338 -#define GP2_IO_BASE 0x33a - - -#ifdef CONFIG_LEDS -#define DEFAULT_LEDS 0 -#else -#define DEFAULT_LEDS GPIO_GREEN_LED -#endif - -/* - * Winbond WB83977F accessibility stuff - */ -static inline void wb977_open(void) -{ - outb(0x87, 0x370); - outb(0x87, 0x370); -} - -static inline void wb977_close(void) -{ - outb(0xaa, 0x370); -} - -static inline void wb977_wb(int reg, int val) -{ - outb(reg, 0x370); - outb(val, 0x371); -} - -static inline void wb977_ww(int reg, int val) -{ - outb(reg, 0x370); - outb(val >> 8, 0x371); - outb(reg + 1, 0x370); - outb(val & 255, 0x371); -} - -#define wb977_device_select(dev) wb977_wb(0x07, dev) -#define wb977_device_disable() wb977_wb(0x30, 0x00) -#define wb977_device_enable() wb977_wb(0x30, 0x01) - -/* - * This is a lock for accessing ports GP1_IO_BASE and GP2_IO_BASE - */ -DEFINE_RAW_SPINLOCK(nw_gpio_lock); -EXPORT_SYMBOL(nw_gpio_lock); - -static unsigned int current_gpio_op; -static unsigned int current_gpio_io; -static unsigned int current_cpld; - -void nw_gpio_modify_op(unsigned int mask, unsigned int set) -{ - unsigned int new_gpio, changed; - - new_gpio = (current_gpio_op & ~mask) | set; - changed = new_gpio ^ current_gpio_op; - current_gpio_op = new_gpio; - - if (changed & 0xff) - outb(new_gpio, GP1_IO_BASE); - if (changed & 0xff00) - outb(new_gpio >> 8, GP2_IO_BASE); -} -EXPORT_SYMBOL(nw_gpio_modify_op); - -static inline void __gpio_modify_io(int mask, int in) -{ - unsigned int new_gpio, changed; - int port; - - new_gpio = (current_gpio_io & ~mask) | in; - changed = new_gpio ^ current_gpio_io; - current_gpio_io = new_gpio; - - changed >>= 1; - new_gpio >>= 1; - - wb977_device_select(7); - - for (port = 0xe1; changed && port < 0xe8; changed >>= 1) { - wb977_wb(port, new_gpio & 1); - - port += 1; - new_gpio >>= 1; - } - - wb977_device_select(8); - - for (port = 0xe8; changed && port < 0xec; changed >>= 1) { - wb977_wb(port, new_gpio & 1); - - port += 1; - new_gpio >>= 1; - } -} - -void nw_gpio_modify_io(unsigned int mask, unsigned int in) -{ - /* Open up the SuperIO chip */ - wb977_open(); - - __gpio_modify_io(mask, in); - - /* Close up the EFER gate */ - wb977_close(); -} -EXPORT_SYMBOL(nw_gpio_modify_io); - -unsigned int nw_gpio_read(void) -{ - return inb(GP1_IO_BASE) | inb(GP2_IO_BASE) << 8; -} -EXPORT_SYMBOL(nw_gpio_read); - -/* - * Initialise the Winbond W83977F global registers - */ -static inline void wb977_init_global(void) -{ - /* - * Enable R/W config registers - */ - wb977_wb(0x26, 0x40); - - /* - * Power down FDC (not used) - */ - wb977_wb(0x22, 0xfe); - - /* - * GP12, GP11, CIRRX, IRRXH, GP10 - */ - wb977_wb(0x2a, 0xc1); - - /* - * GP23, GP22, GP21, GP20, GP13 - */ - wb977_wb(0x2b, 0x6b); - - /* - * GP17, GP16, GP15, GP14 - */ - wb977_wb(0x2c, 0x55); -} - -/* - * Initialise the Winbond W83977F printer port - */ -static inline void wb977_init_printer(void) -{ - wb977_device_select(1); - - /* - * mode 1 == EPP - */ - wb977_wb(0xf0, 0x01); -} - -/* - * Initialise the Winbond W83977F keyboard controller - */ -static inline void wb977_init_keyboard(void) -{ - wb977_device_select(5); - - /* - * Keyboard controller address - */ - wb977_ww(0x60, 0x0060); - wb977_ww(0x62, 0x0064); - - /* - * Keyboard IRQ 1, active high, edge trigger - */ - wb977_wb(0x70, 1); - wb977_wb(0x71, 0x02); - - /* - * Mouse IRQ 5, active high, edge trigger - */ - wb977_wb(0x72, 5); - wb977_wb(0x73, 0x02); - - /* - * KBC 8MHz - */ - wb977_wb(0xf0, 0x40); - - /* - * Enable device - */ - wb977_device_enable(); -} - -/* - * Initialise the Winbond W83977F Infra-Red device - */ -static inline void wb977_init_irda(void) -{ - wb977_device_select(6); - - /* - * IR base address - */ - wb977_ww(0x60, IRDA_IO_BASE); - - /* - * IRDA IRQ 6, active high, edge trigger - */ - wb977_wb(0x70, 6); - wb977_wb(0x71, 0x02); - - /* - * RX DMA - ISA DMA 0 - */ - wb977_wb(0x74, 0x00); - - /* - * TX DMA - Disable Tx DMA - */ - wb977_wb(0x75, 0x04); - - /* - * Append CRC, Enable bank selection - */ - wb977_wb(0xf0, 0x03); - - /* - * Enable device - */ - wb977_device_enable(); -} - -/* - * Initialise Winbond W83977F general purpose IO - */ -static inline void wb977_init_gpio(void) -{ - unsigned long flags; - - /* - * Set up initial I/O definitions - */ - current_gpio_io = -1; - __gpio_modify_io(-1, GPIO_DONE | GPIO_WDTIMER); - - wb977_device_select(7); - - /* - * Group1 base address - */ - wb977_ww(0x60, GP1_IO_BASE); - wb977_ww(0x62, 0); - wb977_ww(0x64, 0); - - /* - * GP10 (Orage button) IRQ 10, active high, edge trigger - */ - wb977_wb(0x70, 10); - wb977_wb(0x71, 0x02); - - /* - * GP10: Debounce filter enabled, IRQ, input - */ - wb977_wb(0xe0, 0x19); - - /* - * Enable Group1 - */ - wb977_device_enable(); - - wb977_device_select(8); - - /* - * Group2 base address - */ - wb977_ww(0x60, GP2_IO_BASE); - - /* - * Clear watchdog timer regs - * - timer disable - */ - wb977_wb(0xf2, 0x00); - - /* - * - disable LED, no mouse nor keyboard IRQ - */ - wb977_wb(0xf3, 0x00); - - /* - * - timer counting, disable power LED, disable timeouot - */ - wb977_wb(0xf4, 0x00); - - /* - * Enable group2 - */ - wb977_device_enable(); - - /* - * Set Group1/Group2 outputs - */ - raw_spin_lock_irqsave(&nw_gpio_lock, flags); - nw_gpio_modify_op(-1, GPIO_RED_LED | GPIO_FAN); - raw_spin_unlock_irqrestore(&nw_gpio_lock, flags); -} - -/* - * Initialise the Winbond W83977F chip. - */ -static void __init wb977_init(void) -{ - request_region(0x370, 2, "W83977AF configuration"); - - /* - * Open up the SuperIO chip - */ - wb977_open(); - - /* - * Initialise the global registers - */ - wb977_init_global(); - - /* - * Initialise the various devices in - * the multi-IO chip. - */ - wb977_init_printer(); - wb977_init_keyboard(); - wb977_init_irda(); - wb977_init_gpio(); - - /* - * Close up the EFER gate - */ - wb977_close(); -} - -void nw_cpld_modify(unsigned int mask, unsigned int set) -{ - int msk; - - current_cpld = (current_cpld & ~mask) | set; - - nw_gpio_modify_io(GPIO_DATA | GPIO_IOCLK | GPIO_IOLOAD, 0); - nw_gpio_modify_op(GPIO_IOLOAD, 0); - - for (msk = 8; msk; msk >>= 1) { - int bit = current_cpld & msk; - - nw_gpio_modify_op(GPIO_DATA | GPIO_IOCLK, bit ? GPIO_DATA : 0); - nw_gpio_modify_op(GPIO_IOCLK, GPIO_IOCLK); - } - - nw_gpio_modify_op(GPIO_IOCLK|GPIO_DATA, 0); - nw_gpio_modify_op(GPIO_IOLOAD|GPIO_DSCLK, GPIO_IOLOAD|GPIO_DSCLK); - nw_gpio_modify_op(GPIO_IOLOAD, 0); -} -EXPORT_SYMBOL(nw_cpld_modify); - -static void __init cpld_init(void) -{ - unsigned long flags; - - raw_spin_lock_irqsave(&nw_gpio_lock, flags); - nw_cpld_modify(-1, CPLD_UNMUTE | CPLD_7111_DISABLE); - raw_spin_unlock_irqrestore(&nw_gpio_lock, flags); -} - -static unsigned char rwa_unlock[] __initdata = -{ 0x00, 0x00, 0x6a, 0xb5, 0xda, 0xed, 0xf6, 0xfb, 0x7d, 0xbe, 0xdf, 0x6f, 0x37, 0x1b, - 0x0d, 0x86, 0xc3, 0x61, 0xb0, 0x58, 0x2c, 0x16, 0x8b, 0x45, 0xa2, 0xd1, 0xe8, 0x74, - 0x3a, 0x9d, 0xce, 0xe7, 0x73, 0x39 }; - -#ifndef DEBUG -#define dprintk(x...) -#else -#define dprintk(x...) printk(x) -#endif - -#define WRITE_RWA(r,v) do { outb((r), 0x279); udelay(10); outb((v), 0xa79); } while (0) - -static inline void rwa010_unlock(void) -{ - int i; - - WRITE_RWA(2, 2); - mdelay(10); - - for (i = 0; i < sizeof(rwa_unlock); i++) { - outb(rwa_unlock[i], 0x279); - udelay(10); - } -} - -static inline void rwa010_read_ident(void) -{ - unsigned char si[9]; - int i, j; - - WRITE_RWA(3, 0); - WRITE_RWA(0, 128); - - outb(1, 0x279); - - mdelay(1); - - dprintk("Identifier: "); - for (i = 0; i < 9; i++) { - si[i] = 0; - for (j = 0; j < 8; j++) { - int bit; - udelay(250); - inb(0x203); - udelay(250); - bit = inb(0x203); - dprintk("%02X ", bit); - bit = (bit == 0xaa) ? 1 : 0; - si[i] |= bit << j; - } - dprintk("(%02X) ", si[i]); - } - dprintk("\n"); -} - -static inline void rwa010_global_init(void) -{ - WRITE_RWA(6, 2); // Assign a card no = 2 - - dprintk("Card no = %d\n", inb(0x203)); - - /* disable the modem section of the chip */ - WRITE_RWA(7, 3); - WRITE_RWA(0x30, 0); - - /* disable the cdrom section of the chip */ - WRITE_RWA(7, 4); - WRITE_RWA(0x30, 0); - - /* disable the MPU-401 section of the chip */ - WRITE_RWA(7, 2); - WRITE_RWA(0x30, 0); -} - -static inline void rwa010_game_port_init(void) -{ - int i; - - WRITE_RWA(7, 5); - - dprintk("Slider base: "); - WRITE_RWA(0x61, 1); - i = inb(0x203); - - WRITE_RWA(0x60, 2); - dprintk("%02X%02X (201)\n", inb(0x203), i); - - WRITE_RWA(0x30, 1); -} - -static inline void rwa010_waveartist_init(int base, int irq, int dma) -{ - int i; - - WRITE_RWA(7, 0); - - dprintk("WaveArtist base: "); - WRITE_RWA(0x61, base & 255); - i = inb(0x203); - - WRITE_RWA(0x60, base >> 8); - dprintk("%02X%02X (%X),", inb(0x203), i, base); - - WRITE_RWA(0x70, irq); - dprintk(" irq: %d (%d),", inb(0x203), irq); - - WRITE_RWA(0x74, dma); - dprintk(" dma: %d (%d)\n", inb(0x203), dma); - - WRITE_RWA(0x30, 1); -} - -static inline void rwa010_soundblaster_init(int sb_base, int al_base, int irq, int dma) -{ - int i; - - WRITE_RWA(7, 1); - - dprintk("SoundBlaster base: "); - WRITE_RWA(0x61, sb_base & 255); - i = inb(0x203); - - WRITE_RWA(0x60, sb_base >> 8); - dprintk("%02X%02X (%X),", inb(0x203), i, sb_base); - - dprintk(" irq: "); - WRITE_RWA(0x70, irq); - dprintk("%d (%d),", inb(0x203), irq); - - dprintk(" 8-bit DMA: "); - WRITE_RWA(0x74, dma); - dprintk("%d (%d)\n", inb(0x203), dma); - - dprintk("AdLib base: "); - WRITE_RWA(0x63, al_base & 255); - i = inb(0x203); - - WRITE_RWA(0x62, al_base >> 8); - dprintk("%02X%02X (%X)\n", inb(0x203), i, al_base); - - WRITE_RWA(0x30, 1); -} - -static void rwa010_soundblaster_reset(void) -{ - int i; - - outb(1, 0x226); - udelay(3); - outb(0, 0x226); - - for (i = 0; i < 5; i++) { - if (inb(0x22e) & 0x80) - break; - mdelay(1); - } - if (i == 5) - printk("SoundBlaster: DSP reset failed\n"); - - dprintk("SoundBlaster DSP reset: %02X (AA)\n", inb(0x22a)); - - for (i = 0; i < 5; i++) { - if ((inb(0x22c) & 0x80) == 0) - break; - mdelay(1); - } - - if (i == 5) - printk("SoundBlaster: DSP not ready\n"); - else { - outb(0xe1, 0x22c); - - dprintk("SoundBlaster DSP id: "); - i = inb(0x22a); - udelay(1); - i |= inb(0x22a) << 8; - dprintk("%04X\n", i); - - for (i = 0; i < 5; i++) { - if ((inb(0x22c) & 0x80) == 0) - break; - mdelay(1); - } - - if (i == 5) - printk("SoundBlaster: could not turn speaker off\n"); - - outb(0xd3, 0x22c); - } - - /* turn on OPL3 */ - outb(5, 0x38a); - outb(1, 0x38b); -} - -static void __init rwa010_init(void) -{ - rwa010_unlock(); - rwa010_read_ident(); - rwa010_global_init(); - rwa010_game_port_init(); - rwa010_waveartist_init(0x250, 3, 7); - rwa010_soundblaster_init(0x220, 0x388, 3, 1); - rwa010_soundblaster_reset(); -} - -/* - * Initialise any other hardware after we've got the PCI bus - * initialised. We may need the PCI bus to talk to this other - * hardware. - */ -static int __init nw_hw_init(void) -{ - if (machine_is_netwinder()) { - unsigned long flags; - - wb977_init(); - cpld_init(); - rwa010_init(); - - raw_spin_lock_irqsave(&nw_gpio_lock, flags); - nw_gpio_modify_op(GPIO_RED_LED|GPIO_GREEN_LED, DEFAULT_LEDS); - raw_spin_unlock_irqrestore(&nw_gpio_lock, flags); - } - return 0; -} - -__initcall(nw_hw_init); - -/* - * Older NeTTroms either do not provide a parameters - * page, or they don't supply correct information in - * the parameter page. - */ -static void __init -fixup_netwinder(struct tag *tags, char **cmdline, struct meminfo *mi) -{ -#ifdef CONFIG_ISAPNP - extern int isapnp_disable; - - /* - * We must not use the kernels ISAPnP code - * on the NetWinder - it will reset the settings - * for the WaveArtist chip and render it inoperable. - */ - isapnp_disable = 1; -#endif -} - -static void netwinder_restart(char mode, const char *cmd) -{ - if (mode == 's') { - /* Jump into the ROM */ - soft_restart(0x41000000); - } else { - local_irq_disable(); - local_fiq_disable(); - - /* open up the SuperIO chip */ - outb(0x87, 0x370); - outb(0x87, 0x370); - - /* aux function group 1 (logical device 7) */ - outb(0x07, 0x370); - outb(0x07, 0x371); - - /* set GP16 for WD-TIMER output */ - outb(0xe6, 0x370); - outb(0x00, 0x371); - - /* set a RED LED and toggle WD_TIMER for rebooting */ - outb(0xc4, 0x338); - } -} - -MACHINE_START(NETWINDER, "Rebel-NetWinder") - /* Maintainer: Russell King/Rebel.com */ - .atag_offset = 0x100, - .video_start = 0x000a0000, - .video_end = 0x000bffff, - .reserve_lp0 = 1, - .reserve_lp2 = 1, - .fixup = fixup_netwinder, - .map_io = footbridge_map_io, - .init_irq = footbridge_init_irq, - .timer = &isa_timer, - .restart = netwinder_restart, -MACHINE_END |