| /* |
| * linux/arch/arm/mach-sa1100/badge4.c |
| * |
| * BadgePAD 4 specific initialization |
| * |
| * Tim Connors <connors@hpl.hp.com> |
| * Christopher Hoover <ch@hpl.hp.com> |
| * |
| * Copyright (C) 2002 Hewlett-Packard Company |
| * |
| * 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/module.h> |
| #include <linux/init.h> |
| #include <linux/kernel.h> |
| #include <linux/platform_device.h> |
| #include <linux/delay.h> |
| #include <linux/tty.h> |
| #include <linux/mtd/mtd.h> |
| #include <linux/mtd/partitions.h> |
| #include <linux/errno.h> |
| |
| #include <mach/hardware.h> |
| #include <asm/mach-types.h> |
| #include <asm/setup.h> |
| #include <mach/irqs.h> |
| |
| #include <asm/mach/arch.h> |
| #include <asm/mach/flash.h> |
| #include <asm/mach/map.h> |
| #include <asm/hardware/sa1111.h> |
| #include <asm/mach/serial_sa1100.h> |
| |
| #include <mach/badge4.h> |
| |
| #include "generic.h" |
| |
| static struct resource sa1111_resources[] = { |
| [0] = { |
| .start = BADGE4_SA1111_BASE, |
| .end = BADGE4_SA1111_BASE + 0x00001fff, |
| .flags = IORESOURCE_MEM, |
| }, |
| [1] = { |
| .start = BADGE4_IRQ_GPIO_SA1111, |
| .end = BADGE4_IRQ_GPIO_SA1111, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static int badge4_sa1111_enable(void *data, unsigned devid) |
| { |
| if (devid == SA1111_DEVID_USB) |
| badge4_set_5V(BADGE4_5V_USB, 1); |
| return 0; |
| } |
| |
| static void badge4_sa1111_disable(void *data, unsigned devid) |
| { |
| if (devid == SA1111_DEVID_USB) |
| badge4_set_5V(BADGE4_5V_USB, 0); |
| } |
| |
| static struct sa1111_platform_data sa1111_info = { |
| .irq_base = IRQ_BOARD_END, |
| .disable_devs = SA1111_DEVID_PS2_MSE, |
| .enable = badge4_sa1111_enable, |
| .disable = badge4_sa1111_disable, |
| }; |
| |
| static u64 sa1111_dmamask = 0xffffffffUL; |
| |
| static struct platform_device sa1111_device = { |
| .name = "sa1111", |
| .id = 0, |
| .dev = { |
| .dma_mask = &sa1111_dmamask, |
| .coherent_dma_mask = 0xffffffff, |
| .platform_data = &sa1111_info, |
| }, |
| .num_resources = ARRAY_SIZE(sa1111_resources), |
| .resource = sa1111_resources, |
| }; |
| |
| static struct platform_device *devices[] __initdata = { |
| &sa1111_device, |
| }; |
| |
| static int __init badge4_sa1111_init(void) |
| { |
| /* |
| * Ensure that the memory bus request/grant signals are setup, |
| * and the grant is held in its inactive state |
| */ |
| sa1110_mb_disable(); |
| |
| /* |
| * Probe for SA1111. |
| */ |
| return platform_add_devices(devices, ARRAY_SIZE(devices)); |
| } |
| |
| |
| /* |
| * 1 x Intel 28F320C3 Advanced+ Boot Block Flash (32 Mi bit) |
| * Eight 4 KiW Parameter Bottom Blocks (64 KiB) |
| * Sixty-three 32 KiW Main Blocks (4032 Ki b) |
| * |
| * <or> |
| * |
| * 1 x Intel 28F640C3 Advanced+ Boot Block Flash (64 Mi bit) |
| * Eight 4 KiW Parameter Bottom Blocks (64 KiB) |
| * One-hundred-twenty-seven 32 KiW Main Blocks (8128 Ki b) |
| */ |
| static struct mtd_partition badge4_partitions[] = { |
| { |
| .name = "BLOB boot loader", |
| .offset = 0, |
| .size = 0x0000A000 |
| }, { |
| .name = "params", |
| .offset = MTDPART_OFS_APPEND, |
| .size = 0x00006000 |
| }, { |
| .name = "root", |
| .offset = MTDPART_OFS_APPEND, |
| .size = MTDPART_SIZ_FULL |
| } |
| }; |
| |
| static struct flash_platform_data badge4_flash_data = { |
| .map_name = "cfi_probe", |
| .parts = badge4_partitions, |
| .nr_parts = ARRAY_SIZE(badge4_partitions), |
| }; |
| |
| static struct resource badge4_flash_resource = { |
| .start = SA1100_CS0_PHYS, |
| .end = SA1100_CS0_PHYS + SZ_64M - 1, |
| .flags = IORESOURCE_MEM, |
| }; |
| |
| static int five_v_on __initdata = 0; |
| |
| static int __init five_v_on_setup(char *ignore) |
| { |
| five_v_on = 1; |
| return 1; |
| } |
| __setup("five_v_on", five_v_on_setup); |
| |
| |
| static int __init badge4_init(void) |
| { |
| int ret; |
| |
| if (!machine_is_badge4()) |
| return -ENODEV; |
| |
| /* LCD */ |
| GPCR = (BADGE4_GPIO_LGP2 | BADGE4_GPIO_LGP3 | |
| BADGE4_GPIO_LGP4 | BADGE4_GPIO_LGP5 | |
| BADGE4_GPIO_LGP6 | BADGE4_GPIO_LGP7 | |
| BADGE4_GPIO_LGP8 | BADGE4_GPIO_LGP9 | |
| BADGE4_GPIO_GPA_VID | BADGE4_GPIO_GPB_VID | |
| BADGE4_GPIO_GPC_VID); |
| GPDR &= ~BADGE4_GPIO_INT_VID; |
| GPDR |= (BADGE4_GPIO_LGP2 | BADGE4_GPIO_LGP3 | |
| BADGE4_GPIO_LGP4 | BADGE4_GPIO_LGP5 | |
| BADGE4_GPIO_LGP6 | BADGE4_GPIO_LGP7 | |
| BADGE4_GPIO_LGP8 | BADGE4_GPIO_LGP9 | |
| BADGE4_GPIO_GPA_VID | BADGE4_GPIO_GPB_VID | |
| BADGE4_GPIO_GPC_VID); |
| |
| /* SDRAM SPD i2c */ |
| GPCR = (BADGE4_GPIO_SDSDA | BADGE4_GPIO_SDSCL); |
| GPDR |= (BADGE4_GPIO_SDSDA | BADGE4_GPIO_SDSCL); |
| |
| /* uart */ |
| GPCR = (BADGE4_GPIO_UART_HS1 | BADGE4_GPIO_UART_HS2); |
| GPDR |= (BADGE4_GPIO_UART_HS1 | BADGE4_GPIO_UART_HS2); |
| |
| /* CPLD muxsel0 input for mux/adc chip select */ |
| GPCR = BADGE4_GPIO_MUXSEL0; |
| GPDR |= BADGE4_GPIO_MUXSEL0; |
| |
| /* test points: J5, J6 as inputs, J7 outputs */ |
| GPDR &= ~(BADGE4_GPIO_TESTPT_J5 | BADGE4_GPIO_TESTPT_J6); |
| GPCR = BADGE4_GPIO_TESTPT_J7; |
| GPDR |= BADGE4_GPIO_TESTPT_J7; |
| |
| /* 5V supply rail. */ |
| GPCR = BADGE4_GPIO_PCMEN5V; /* initially off */ |
| GPDR |= BADGE4_GPIO_PCMEN5V; |
| |
| /* CPLD sdram type inputs; set up by blob */ |
| //GPDR |= (BADGE4_GPIO_SDTYP1 | BADGE4_GPIO_SDTYP0); |
| printk(KERN_DEBUG __FILE__ ": SDRAM CPLD typ1=%d typ0=%d\n", |
| !!(GPLR & BADGE4_GPIO_SDTYP1), |
| !!(GPLR & BADGE4_GPIO_SDTYP0)); |
| |
| /* SA1111 reset pin; set up by blob */ |
| //GPSR = BADGE4_GPIO_SA1111_NRST; |
| //GPDR |= BADGE4_GPIO_SA1111_NRST; |
| |
| |
| /* power management cruft */ |
| PGSR = 0; |
| PWER = 0; |
| PCFR = 0; |
| PSDR = 0; |
| |
| PWER |= PWER_GPIO26; /* wake up on an edge from TESTPT_J5 */ |
| PWER |= PWER_RTC; /* wake up if rtc fires */ |
| |
| /* drive sa1111_nrst during sleep */ |
| PGSR |= BADGE4_GPIO_SA1111_NRST; |
| /* drive CPLD as is during sleep */ |
| PGSR |= (GPLR & (BADGE4_GPIO_SDTYP0|BADGE4_GPIO_SDTYP1)); |
| |
| |
| /* Now bring up the SA-1111. */ |
| ret = badge4_sa1111_init(); |
| if (ret < 0) |
| printk(KERN_ERR |
| "%s: SA-1111 initialization failed (%d)\n", |
| __func__, ret); |
| |
| |
| /* maybe turn on 5v0 from the start */ |
| badge4_set_5V(BADGE4_5V_INITIALLY, five_v_on); |
| |
| sa11x0_register_mtd(&badge4_flash_data, &badge4_flash_resource, 1); |
| |
| return 0; |
| } |
| |
| arch_initcall(badge4_init); |
| |
| |
| static unsigned badge4_5V_bitmap = 0; |
| |
| void badge4_set_5V(unsigned subsystem, int on) |
| { |
| unsigned long flags; |
| unsigned old_5V_bitmap; |
| |
| local_irq_save(flags); |
| |
| old_5V_bitmap = badge4_5V_bitmap; |
| |
| if (on) { |
| badge4_5V_bitmap |= subsystem; |
| } else { |
| badge4_5V_bitmap &= ~subsystem; |
| } |
| |
| /* detect on->off and off->on transitions */ |
| if ((!old_5V_bitmap) && (badge4_5V_bitmap)) { |
| /* was off, now on */ |
| printk(KERN_INFO "%s: enabling 5V supply rail\n", __func__); |
| GPSR = BADGE4_GPIO_PCMEN5V; |
| } else if ((old_5V_bitmap) && (!badge4_5V_bitmap)) { |
| /* was on, now off */ |
| printk(KERN_INFO "%s: disabling 5V supply rail\n", __func__); |
| GPCR = BADGE4_GPIO_PCMEN5V; |
| } |
| |
| local_irq_restore(flags); |
| } |
| EXPORT_SYMBOL(badge4_set_5V); |
| |
| |
| static struct map_desc badge4_io_desc[] __initdata = { |
| { /* SRAM bank 1 */ |
| .virtual = 0xf1000000, |
| .pfn = __phys_to_pfn(0x08000000), |
| .length = 0x00100000, |
| .type = MT_DEVICE |
| }, { /* SRAM bank 2 */ |
| .virtual = 0xf2000000, |
| .pfn = __phys_to_pfn(0x10000000), |
| .length = 0x00100000, |
| .type = MT_DEVICE |
| } |
| }; |
| |
| static void |
| badge4_uart_pm(struct uart_port *port, u_int state, u_int oldstate) |
| { |
| if (!state) { |
| Ser1SDCR0 |= SDCR0_UART; |
| } |
| } |
| |
| static struct sa1100_port_fns badge4_port_fns __initdata = { |
| //.get_mctrl = badge4_get_mctrl, |
| //.set_mctrl = badge4_set_mctrl, |
| .pm = badge4_uart_pm, |
| }; |
| |
| static void __init badge4_map_io(void) |
| { |
| sa1100_map_io(); |
| iotable_init(badge4_io_desc, ARRAY_SIZE(badge4_io_desc)); |
| |
| sa1100_register_uart_fns(&badge4_port_fns); |
| sa1100_register_uart(0, 3); |
| sa1100_register_uart(1, 1); |
| } |
| |
| MACHINE_START(BADGE4, "Hewlett-Packard Laboratories BadgePAD 4") |
| .atag_offset = 0x100, |
| .map_io = badge4_map_io, |
| .init_irq = sa1100_init_irq, |
| .timer = &sa1100_timer, |
| #ifdef CONFIG_SA1111 |
| .dma_zone_size = SZ_1M, |
| #endif |
| .restart = sa11x0_restart, |
| MACHINE_END |