/* * linux/arch/arm/mach-s3c2440/mach-gta02.c * * S3C2440 Machine Support for the FIC GTA02 (Neo1973) * * Copyright (C) 2006-2007 by Openmoko, Inc. * Author: Harald Welte * All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "fiq_c_isr.h" #include #include #include #include "../plat-s3c24xx/neo1973_pm_gps.h" #include <../drivers/input/touchscreen/ts_filter_linear.h> #include <../drivers/input/touchscreen/ts_filter_mean.h> #include <../drivers/input/touchscreen/ts_filter_median.h> #include <../drivers/input/touchscreen/ts_filter_group.h> /* arbitrates which sensor IRQ owns the shared SPI bus */ static spinlock_t motion_irq_lock; static int gta02_charger_online_status; static int gta02_charger_active_status; /* define FIQ IPC struct */ /* * contains stuff FIQ ISR modifies and normal kernel code can see and use * this is defined in , you should customize * the definition in there and include the same definition in your kernel * module that wants to interoperate with your FIQ code. */ struct fiq_ipc fiq_ipc; EXPORT_SYMBOL(fiq_ipc); #define DIVISOR_FROM_US(x) ((x) << 3) #define FIQ_DIVISOR_VIBRATOR DIVISOR_FROM_US(100) #ifdef CONFIG_GTA02_HDQ /* HDQ specific */ #define HDQ_SAMPLE_PERIOD_US 20 /* private HDQ FSM state -- all other info interesting for caller in fiq_ipc */ static enum hdq_bitbang_states hdq_state; static u8 hdq_ctr; static u8 hdq_ctr2; static u8 hdq_bit; static u8 hdq_shifter; static u8 hdq_tx_data_done; #define FIQ_DIVISOR_HDQ DIVISOR_FROM_US(HDQ_SAMPLE_PERIOD_US) #endif /* define FIQ ISR */ FIQ_HANDLER_START() /* define your locals here -- no initializers though */ u16 divisor; FIQ_HANDLER_ENTRY(64, 64) /* Your ISR here :-) */ divisor = 0xffff; /* Vibrator servicing */ if (fiq_ipc.vib_pwm_latched || fiq_ipc.vib_pwm) { /* not idle */ if (((u8)_fiq_count_fiqs) == fiq_ipc.vib_pwm_latched) neo1973_gpb_setpin(fiq_ipc.vib_gpio_pin, 0); if (((u8)_fiq_count_fiqs) == 0) { fiq_ipc.vib_pwm_latched = fiq_ipc.vib_pwm; if (fiq_ipc.vib_pwm_latched) neo1973_gpb_setpin(fiq_ipc.vib_gpio_pin, 1); } divisor = FIQ_DIVISOR_VIBRATOR; } #ifdef CONFIG_GTA02_HDQ /* HDQ servicing */ switch (hdq_state) { case HDQB_IDLE: if (fiq_ipc.hdq_request_ctr == fiq_ipc.hdq_transaction_ctr) break; hdq_ctr = 210 / HDQ_SAMPLE_PERIOD_US; s3c2410_gpio_setpin(fiq_ipc.hdq_gpio_pin, 0); s3c2410_gpio_cfgpin(fiq_ipc.hdq_gpio_pin, S3C2410_GPIO_OUTPUT); hdq_tx_data_done = 0; hdq_state = HDQB_TX_BREAK; break; case HDQB_TX_BREAK: /* issue low for > 190us */ if (--hdq_ctr == 0) { hdq_ctr = 60 / HDQ_SAMPLE_PERIOD_US; hdq_state = HDQB_TX_BREAK_RECOVERY; s3c2410_gpio_setpin(fiq_ipc.hdq_gpio_pin, 1); } break; case HDQB_TX_BREAK_RECOVERY: /* issue low for > 40us */ if (--hdq_ctr) break; hdq_shifter = fiq_ipc.hdq_ads; hdq_bit = 8; /* 8 bits of ads / rw */ hdq_tx_data_done = 0; /* doing ads */ /* fallthru on last one */ case HDQB_ADS_CALC: if (hdq_shifter & 1) hdq_ctr = 50 / HDQ_SAMPLE_PERIOD_US; else hdq_ctr = 120 / HDQ_SAMPLE_PERIOD_US; /* carefully precompute the other phase length */ hdq_ctr2 = (210 - (hdq_ctr * HDQ_SAMPLE_PERIOD_US)) / HDQ_SAMPLE_PERIOD_US; hdq_state = HDQB_ADS_LOW; hdq_shifter >>= 1; hdq_bit--; s3c2410_gpio_setpin(fiq_ipc.hdq_gpio_pin, 0); break; case HDQB_ADS_LOW: if (--hdq_ctr) break; s3c2410_gpio_setpin(fiq_ipc.hdq_gpio_pin, 1); hdq_state = HDQB_ADS_HIGH; break; case HDQB_ADS_HIGH: if (--hdq_ctr2 > 1) /* account for HDQB_ADS_CALC */ break; if (hdq_bit) { /* more bits to do */ hdq_state = HDQB_ADS_CALC; break; } /* no more bits, wait it out until hdq_ctr2 exhausted */ if (hdq_ctr2) break; /* ok no more bits and very last state */ hdq_ctr = 60 / HDQ_SAMPLE_PERIOD_US; /* FIXME 0 = read */ if (fiq_ipc.hdq_ads & 0x80) { /* write the byte out */ /* set delay before payload */ hdq_ctr = 300 / HDQ_SAMPLE_PERIOD_US; /* already high, no need to write */ hdq_state = HDQB_WAIT_TX; break; } /* read the next byte */ hdq_bit = 8; /* 8 bits of data */ hdq_ctr = 3000 / HDQ_SAMPLE_PERIOD_US; hdq_state = HDQB_WAIT_RX; s3c2410_gpio_cfgpin(fiq_ipc.hdq_gpio_pin, S3C2410_GPIO_INPUT); break; case HDQB_WAIT_TX: /* issue low for > 40us */ if (--hdq_ctr) break; if (!hdq_tx_data_done) { /* was that the data sent? */ hdq_tx_data_done++; hdq_shifter = fiq_ipc.hdq_tx_data; hdq_bit = 8; /* 8 bits of data */ hdq_state = HDQB_ADS_CALC; /* start sending */ break; } fiq_ipc.hdq_error = 0; fiq_ipc.hdq_transaction_ctr = fiq_ipc.hdq_request_ctr; hdq_state = HDQB_IDLE; /* all tx is done */ /* idle in input mode, it's pulled up by 10K */ s3c2410_gpio_cfgpin(fiq_ipc.hdq_gpio_pin, S3C2410_GPIO_INPUT); break; case HDQB_WAIT_RX: /* wait for battery to talk to us */ if (s3c2410_gpio_getpin(fiq_ipc.hdq_gpio_pin) == 0) { /* it talks to us! */ hdq_ctr2 = 1; hdq_bit = 8; /* 8 bits of data */ /* timeout */ hdq_ctr = 300 / HDQ_SAMPLE_PERIOD_US; hdq_state = HDQB_DATA_RX_LOW; break; } if (--hdq_ctr == 0) { /* timed out, error */ fiq_ipc.hdq_error = 1; fiq_ipc.hdq_transaction_ctr = fiq_ipc.hdq_request_ctr; hdq_state = HDQB_IDLE; /* abort */ } break; /* * HDQ basically works by measuring the low time of the bit cell * 32-50us --> '1', 80 - 145us --> '0' */ case HDQB_DATA_RX_LOW: if (s3c2410_gpio_getpin(fiq_ipc.hdq_gpio_pin)) { fiq_ipc.hdq_rx_data >>= 1; if (hdq_ctr2 <= (65 / HDQ_SAMPLE_PERIOD_US)) fiq_ipc.hdq_rx_data |= 0x80; if (--hdq_bit == 0) { fiq_ipc.hdq_error = 0; fiq_ipc.hdq_transaction_ctr = fiq_ipc.hdq_request_ctr; hdq_state = HDQB_IDLE; } else hdq_state = HDQB_DATA_RX_HIGH; /* timeout */ hdq_ctr = 1000 / HDQ_SAMPLE_PERIOD_US; hdq_ctr2 = 1; break; } hdq_ctr2++; if (--hdq_ctr) break; /* timed out, error */ fiq_ipc.hdq_error = 2; fiq_ipc.hdq_transaction_ctr = fiq_ipc.hdq_request_ctr; hdq_state = HDQB_IDLE; /* abort */ break; case HDQB_DATA_RX_HIGH: if (!s3c2410_gpio_getpin(fiq_ipc.hdq_gpio_pin)) { /* it talks to us! */ hdq_ctr2 = 1; /* timeout */ hdq_ctr = 400 / HDQ_SAMPLE_PERIOD_US; hdq_state = HDQB_DATA_RX_LOW; break; } if (--hdq_ctr) break; /* timed out, error */ fiq_ipc.hdq_error = 3; fiq_ipc.hdq_transaction_ctr = fiq_ipc.hdq_request_ctr; /* we're in input mode already */ hdq_state = HDQB_IDLE; /* abort */ break; } if (hdq_state != HDQB_IDLE) /* ie, not idle */ if (divisor > FIQ_DIVISOR_HDQ) divisor = FIQ_DIVISOR_HDQ; /* keep us going */ #endif /* disable further timer interrupts if nobody has any work * or adjust rate according to who still has work * * CAUTION: it means forground code must disable FIQ around * its own non-atomic S3C2410_INTMSK changes... not common * thankfully and taken care of by the fiq-basis patch */ if (divisor == 0xffff) /* mask the fiq irq source */ __raw_writel(__raw_readl(S3C2410_INTMSK) | _fiq_ack_mask, S3C2410_INTMSK); else /* still working, maybe at a different rate */ __raw_writel(divisor, S3C2410_TCNTB(_fiq_timer_index)); _fiq_timer_divisor = divisor; FIQ_HANDLER_END() /* * this gets called every 1ms when we paniced. */ static long gta02_panic_blink(long count) { long delay = 0; static long last_blink; static char led; if (count - last_blink < 100) /* 200ms period, fast blink */ return 0; led ^= 1; s3c2410_gpio_cfgpin(GTA02_GPIO_AUX_LED, S3C2410_GPIO_OUTPUT); neo1973_gpb_setpin(GTA02_GPIO_AUX_LED, led); last_blink = count; return delay; } /** * returns PCB revision information in b9,b8 and b2,b1,b0 * Pre-GTA02 A6 returns 0x000 * GTA02 A6 returns 0x101 * ... */ int gta02_get_pcb_revision(void) { int n; int u = 0; static unsigned long pinlist[] = { GTA02_PCB_ID1_0, GTA02_PCB_ID1_1, GTA02_PCB_ID1_2, GTA02_PCB_ID2_0, GTA02_PCB_ID2_1, }; static int pin_offset[] = { 0, 1, 2, 8, 9 }; for (n = 0 ; n < ARRAY_SIZE(pinlist); n++) { /* * set the PCB version GPIO to be pulled-down input * force low briefly first */ s3c2410_gpio_cfgpin(pinlist[n], S3C2410_GPIO_OUTPUT); s3c2410_gpio_setpin(pinlist[n], 0); /* misnomer: it is a pullDOWN in 2442 */ s3c2410_gpio_pullup(pinlist[n], 1); s3c2410_gpio_cfgpin(pinlist[n], S3C2410_GPIO_INPUT); udelay(10); if (s3c2410_gpio_getpin(pinlist[n])) u |= 1 << pin_offset[n]; /* * when not being interrogated, all of the revision GPIO * are set to output HIGH without pulldown so no current flows * if they are NC or pulled up. */ s3c2410_gpio_setpin(pinlist[n], 1); s3c2410_gpio_cfgpin(pinlist[n], S3C2410_GPIO_OUTPUT); /* misnomer: it is a pullDOWN in 2442 */ s3c2410_gpio_pullup(pinlist[n], 0); } return u; } struct platform_device gta02_version_device = { .name = "neo1973-version", .num_resources = 0, }; struct platform_device gta02_resume_reason_device = { .name = "neo1973-resume", .num_resources = 0, }; struct platform_device gta02_memconfig_device = { .name = "neo1973-memconfig", .num_resources = 0, }; static struct map_desc gta02_iodesc[] __initdata = { { .virtual = 0xe0000000, .pfn = __phys_to_pfn(S3C2410_CS3+0x01000000), .length = SZ_1M, .type = MT_DEVICE }, }; #define UCON S3C2410_UCON_DEFAULT #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE static struct s3c2410_uartcfg gta02_uartcfgs[] = { [0] = { .hwport = 0, .flags = 0, .ucon = UCON, .ulcon = ULCON, .ufcon = UFCON, }, [1] = { .hwport = 1, .flags = 0, .ucon = UCON, .ulcon = ULCON, .ufcon = UFCON, }, [2] = { .hwport = 2, .flags = 0, .ucon = UCON, .ulcon = ULCON, .ufcon = UFCON, }, }; /* BQ27000 Battery */ static int gta02_get_charger_online_status(void) { return gta02_charger_online_status; } static int gta02_get_charger_active_status(void) { return gta02_charger_active_status; } struct bq27000_platform_data bq27000_pdata = { .name = "battery", .rsense_mohms = 20, .hdq_read = gta02hdq_read, .hdq_write = gta02hdq_write, .hdq_initialized = gta02hdq_initialized, .get_charger_online_status = gta02_get_charger_online_status, .get_charger_active_status = gta02_get_charger_active_status }; struct platform_device bq27000_battery_device = { .name = "bq27000-battery", .dev = { .platform_data = &bq27000_pdata, }, }; /* PMU driver info */ static int pmu_callback(struct device *dev, unsigned int feature, enum pmu_event event) { switch (feature) { case PCF50633_FEAT_MBC: switch (event) { case PMU_EVT_CHARGER_IDLE: gta02_charger_active_status = 0; break; case PMU_EVT_CHARGER_ACTIVE: gta02_charger_active_status = 1; break; case PMU_EVT_USB_INSERT: gta02_charger_online_status = 1; break; case PMU_EVT_USB_REMOVE: gta02_charger_online_status = 0; break; case PMU_EVT_INSERT: /* adapter is unsused */ case PMU_EVT_REMOVE: /* adapter is unused */ break; default: break; } break; default: break; } bq27000_charging_state_change(&bq27000_battery_device); return 0; } static struct platform_device gta01_pm_gps_dev = { .name = "neo1973-pm-gps", }; static struct platform_device gta01_pm_bt_dev = { .name = "neo1973-pm-bt", }; static struct platform_device gta02_pm_gsm_dev = { .name = "neo1973-pm-gsm", }; /* this is called when pc50633 is probed, unfortunately quite late in the * day since it is an I2C bus device. Here we can belatedly define some * platform devices with the advantage that we can mark the pcf50633 as the * parent. This makes them get suspended and resumed with their parent * the pcf50633 still around. */ static struct platform_device gta02_glamo_dev; static void mangle_glamo_res_by_system_rev(void); static void gta02_pcf50633_attach_child_devices(struct device *parent_device); static struct platform_device gta02_pm_wlan_dev = { .name = "gta02-pm-wlan", }; static struct pcf50633_platform_data gta02_pcf_pdata = { .used_features = PCF50633_FEAT_MBC | PCF50633_FEAT_BBC | PCF50633_FEAT_RTC | PCF50633_FEAT_CHGCUR | PCF50633_FEAT_BATVOLT | PCF50633_FEAT_BATTEMP | PCF50633_FEAT_PWM_BL, .onkey_seconds_sig_init = 4, .onkey_seconds_shutdown = 8, .cb = &pmu_callback, .r_fix_batt = 10000, .r_fix_batt_par = 10000, .r_sense_milli = 220, .flag_use_apm_emulation = 0, .resumers = { [0] = PCF50633_INT1_USBINS | PCF50633_INT1_USBREM | PCF50633_INT1_ALARM, [1] = PCF50633_INT2_ONKEYF, [2] = PCF50633_INT3_ONKEY1S }, /* warning: these get rewritten during machine init below * depending on pcb variant */ .rails = { [PCF50633_REGULATOR_AUTO] = { .name = "io_3v3", .flags = PMU_VRAIL_F_SUSPEND_ON, .voltage = { .init = 3300, .max = 3300, }, }, [PCF50633_REGULATOR_DOWN1] = { .name = "core_1v3", /* Wow, when we are going into suspend, after pcf50633 * runs its suspend (which happens real early since it * is an i2c device) we are running out of the 22uF cap * on core_1v3 rail !!!! */ .voltage = { .init = 1300, .max = 1600, }, }, [PCF50633_REGULATOR_DOWN2] = { .name = "core_1v8", .flags = PMU_VRAIL_F_SUSPEND_ON, .voltage = { .init = 1800, .max = 1800, }, }, [PCF50633_REGULATOR_HCLDO] = { .name = "sd_3v3", .voltage = { .init = 2000, .max = 3300, }, }, [PCF50633_REGULATOR_LDO1] = { .name = "gsensor_3v3", .voltage = { .init = 1300, .max = 1330, }, }, [PCF50633_REGULATOR_LDO2] = { .name = "codec_3v3", .voltage = { .init = 3300, .max = 3300, }, }, [PCF50633_REGULATOR_LDO3] = { .name = "unused3", .voltage = { .init = 3000, .max = 3000, }, }, [PCF50633_REGULATOR_LDO4] = { .name = "bt_3v2", .voltage = { .init = 2500, .max = 3300, }, }, [PCF50633_REGULATOR_LDO5] = { .name = "rf3v", .voltage = { .init = 1500, .max = 1500, }, }, [PCF50633_REGULATOR_LDO6] = { .name = "lcm_3v", .flags = PMU_VRAIL_F_SUSPEND_ON, .voltage = { .init = 0, .max = 3300, }, }, [PCF50633_REGULATOR_MEMLDO] = { .name = "memldo", .flags = PMU_VRAIL_F_SUSPEND_ON, .voltage = { .init = 1800, .max = 1800, }, }, }, .defer_resume_backlight = 1, .resume_backlight_ramp_speed = 5, .attach_child_devices = gta02_pcf50633_attach_child_devices }; #if 0 /* currently unused */ static void cfg_pmu_vrail(struct pmu_voltage_rail *vrail, char *name, unsigned int flags, unsigned int init, unsigned int max) { vrail->name = name; vrail->flags = flags; vrail->voltage.init = init; vrail->voltage.max = max; } #endif static void mangle_pmu_pdata_by_system_rev(void) { switch (system_rev) { case GTA02v1_SYSTEM_REV: /* FIXME: this is only in v1 due to wrong PMU variant */ gta02_pcf_pdata.rails[PCF50633_REGULATOR_DOWN2].flags = PMU_VRAIL_F_SUSPEND_ON; break; case GTA02v2_SYSTEM_REV: case GTA02v3_SYSTEM_REV: case GTA02v4_SYSTEM_REV: case GTA02v5_SYSTEM_REV: case GTA02v6_SYSTEM_REV: /* we need to keep the 1.8V going since this is the SDRAM * self-refresh voltage */ gta02_pcf_pdata.rails[PCF50633_REGULATOR_DOWN2].flags = PMU_VRAIL_F_SUSPEND_ON; gta02_pcf_pdata.rails[PCF50633_REGULATOR_DOWN2].name = "io_1v8", gta02_pcf_pdata.rails[PCF50633_REGULATOR_LDO1].name = "gsensor_3v3", gta02_pcf_pdata.rails[PCF50633_REGULATOR_LDO1].voltage.init = 3300; gta02_pcf_pdata.rails[PCF50633_REGULATOR_LDO1].voltage.max = 3300; gta02_pcf_pdata.rails[PCF50633_REGULATOR_LDO1].flags &= ~PMU_VRAIL_F_SUSPEND_ON; gta02_pcf_pdata.rails[PCF50633_REGULATOR_LDO3].flags = PMU_VRAIL_F_UNUSED; gta02_pcf_pdata.rails[PCF50633_REGULATOR_LDO5] = ((struct pmu_voltage_rail) { .name = "rf_3v", .voltage = { .init = 0, .max = 3000, } }); gta02_pcf_pdata.rails[PCF50633_REGULATOR_LDO6] = ((struct pmu_voltage_rail) { .name = "lcm_3v", .flags = PMU_VRAIL_F_SUSPEND_ON, .voltage = { .init = 3000, .max = 3000, } }); break; default: break; } } static struct resource gta02_pmu_resources[] = { [0] = { .flags = IORESOURCE_IRQ, .start = GTA02_IRQ_PCF50633, .end = GTA02_IRQ_PCF50633, }, }; struct platform_device gta02_pmu_dev = { .name = "pcf50633", .num_resources = ARRAY_SIZE(gta02_pmu_resources), .resource = gta02_pmu_resources, .dev = { .platform_data = >a02_pcf_pdata, }, }; #ifdef CONFIG_GTA02_HDQ /* HDQ */ static void gta02_hdq_attach_child_devices(struct device *parent_device) { switch (system_rev) { case GTA02v5_SYSTEM_REV: case GTA02v6_SYSTEM_REV: bq27000_battery_device.dev.parent = parent_device; platform_device_register(&bq27000_battery_device); break; default: break; } } static struct resource gta02_hdq_resources[] = { [0] = { .start = GTA02v5_GPIO_HDQ, .end = GTA02v5_GPIO_HDQ, }, }; struct gta02_hdq_platform_data gta02_hdq_platform_data = { .attach_child_devices = gta02_hdq_attach_child_devices }; struct platform_device gta02_hdq_device = { .name = "gta02-hdq", .num_resources = 1, .resource = gta02_hdq_resources, .dev = { .platform_data = >a02_hdq_platform_data, }, }; #endif /* vibrator (child of FIQ) */ static struct resource gta02_vibrator_resources[] = { [0] = { .start = GTA02_GPIO_VIBRATOR_ON, .end = GTA02_GPIO_VIBRATOR_ON, }, }; static struct platform_device gta02_vibrator_dev = { .name = "neo1973-vibrator", .num_resources = ARRAY_SIZE(gta02_vibrator_resources), .resource = gta02_vibrator_resources, }; /* FIQ, used PWM regs, so not child of PWM */ static void gta02_fiq_attach_child_devices(struct device *parent_device) { #ifdef CONFIG_GTA02_HDQ switch (system_rev) { case GTA02v5_SYSTEM_REV: case GTA02v6_SYSTEM_REV: gta02_hdq_device.dev.parent = parent_device; platform_device_register(>a02_hdq_device); gta02_vibrator_dev.dev.parent = parent_device; platform_device_register(>a02_vibrator_dev); break; default: break; } #endif } static struct resource sc32440_fiq_resources[] = { [0] = { .flags = IORESOURCE_IRQ, .start = IRQ_TIMER3, .end = IRQ_TIMER3, }, }; struct sc32440_fiq_platform_data gta02_sc32440_fiq_platform_data = { .attach_child_devices = gta02_fiq_attach_child_devices }; struct platform_device sc32440_fiq_device = { .name = "sc32440_fiq", .num_resources = 1, .resource = sc32440_fiq_resources, .dev = { .platform_data = >a02_sc32440_fiq_platform_data, }, }; /* NOR Flash */ #define GTA02_FLASH_BASE 0x18000000 /* GCS3 */ #define GTA02_FLASH_SIZE 0x200000 /* 2MBytes */ static struct physmap_flash_data gta02_nor_flash_data = { .width = 2, }; static struct resource gta02_nor_flash_resource = { .start = GTA02_FLASH_BASE, .end = GTA02_FLASH_BASE + GTA02_FLASH_SIZE - 1, .flags = IORESOURCE_MEM, }; static struct platform_device gta02_nor_flash = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = >a02_nor_flash_data, }, .resource = >a02_nor_flash_resource, .num_resources = 1, }; struct platform_device s3c24xx_pwm_device = { .name = "s3c24xx_pwm", .num_resources = 0, }; static struct s3c2410_nand_set gta02_nand_sets[] = { [0] = { .name = "neo1973-nand", .nr_chips = 1, .flags = S3C2410_NAND_BBT, }, }; /* choose a set of timings derived from S3C@2442B MCP54 * data sheet (K5D2G13ACM-D075 MCP Memory) */ static struct s3c2410_platform_nand gta02_nand_info = { .tacls = 0, .twrph0 = 25, .twrph1 = 15, .nr_sets = ARRAY_SIZE(gta02_nand_sets), .sets = gta02_nand_sets, .software_ecc = 1, }; static void gta02_s3c_mmc_set_power(unsigned char power_mode, unsigned short vdd) { gta02_wlan_power( power_mode == MMC_POWER_ON || power_mode == MMC_POWER_UP); } static struct s3c24xx_mci_pdata gta02_s3c_mmc_cfg = { .set_power = gta02_s3c_mmc_set_power, }; static void gta02_udc_command(enum s3c2410_udc_cmd_e cmd) { printk(KERN_DEBUG "%s(%d)\n", __func__, cmd); switch (cmd) { case S3C2410_UDC_P_ENABLE: neo1973_gpb_setpin(GTA02_GPIO_USB_PULLUP, 1); break; case S3C2410_UDC_P_DISABLE: neo1973_gpb_setpin(GTA02_GPIO_USB_PULLUP, 0); break; case S3C2410_UDC_P_RESET: /* FIXME! */ break; default: break; } } /* get PMU to set USB current limit accordingly */ static void gta02_udc_vbus_draw(unsigned int ma) { if (!pcf50633_global) return; pcf50633_notify_usb_current_limit_change(pcf50633_global, ma); } static struct s3c2410_udc_mach_info gta02_udc_cfg = { .vbus_draw = gta02_udc_vbus_draw, .udc_command = gta02_udc_command, }; /* touchscreen configuration */ static struct ts_filter_linear_configuration gta02_ts_linear_config = { .constants = {1, 0, 0, 0, 1, 0, 1}, /* don't modify coords */ .coord0 = 0, .coord1 = 1, }; static struct ts_filter_group_configuration gta02_ts_group_config = { .extent = 12, .close_enough = 10, .threshold = 6, /* at least half of the points in a group */ .attempts = 10, }; static struct ts_filter_median_configuration gta02_ts_median_config = { .extent = 20, .decimation_below = 3, .decimation_threshold = 8 * 3, .decimation_above = 4, }; static struct ts_filter_mean_configuration gta02_ts_mean_config = { .bits_filter_length = 2, /* 4 points */ }; static struct s3c2410_ts_mach_info gta02_ts_cfg = { .delay = 10000, .presc = 0xff, /* slow as we can go */ .filter_sequence = { [0] = &ts_filter_group_api, [1] = &ts_filter_median_api, [2] = &ts_filter_mean_api, [3] = &ts_filter_linear_api, }, .filter_config = { [0] = >a02_ts_group_config, [1] = >a02_ts_median_config, [2] = >a02_ts_mean_config, [3] = >a02_ts_linear_config, }, }; /* SPI: LCM control interface attached to Glamo3362 */ static void gta02_jbt6k74_reset(int devidx, int level) { glamo_lcm_reset(level); } /* finally bring up deferred backlight resume now LCM is resumed itself */ static void gta02_jbt6k74_resuming(int devidx) { pcf50633_backlight_resume(pcf50633_global); } const struct jbt6k74_platform_data jbt6k74_pdata = { .reset = gta02_jbt6k74_reset, .resuming = gta02_jbt6k74_resuming, }; static struct spi_board_info gta02_spi_board_info[] = { { .modalias = "jbt6k74", /* platform_data */ .platform_data = &jbt6k74_pdata, /* controller_data */ /* irq */ .max_speed_hz = 100 * 1000, .bus_num = 2, /* chip_select */ }, }; #if 0 /* currently this is not used and we use gpio spi */ static struct glamo_spi_info glamo_spi_cfg = { .board_size = ARRAY_SIZE(gta02_spi_board_info), .board_info = gta02_spi_board_info, }; #endif /* 0 */ static struct glamo_spigpio_info glamo_spigpio_cfg = { .pin_clk = GLAMO_GPIO10_OUTPUT, .pin_mosi = GLAMO_GPIO11_OUTPUT, .pin_cs = GLAMO_GPIO12_OUTPUT, .pin_miso = 0, .board_size = ARRAY_SIZE(gta02_spi_board_info), .board_info = gta02_spi_board_info, }; /* SPI: Accelerometers attached to SPI of s3c244x */ /* * Situation is that Linux SPI can't work in an interrupt context, so we * implement our own bitbang here. Arbitration is needed because not only * can this interrupt happen at any time even if foreground wants to use * the bitbang API from Linux, but multiple motion sensors can be on the * same SPI bus, and multiple interrupts can happen. * * Foreground / interrupt arbitration is okay because the interrupts are * disabled around all the foreground SPI code. * * Interrupt / Interrupt arbitration is evidently needed, otherwise we * lose edge-triggered service after a while due to the two sensors sharing * the SPI bus having irqs at the same time eventually. * * Servicing is typ 75 - 100us at 400MHz. */ /* #define DEBUG_SPEW_MS */ #define MG_PER_SAMPLE 18 struct lis302dl_platform_data lis302_pdata_top; struct lis302dl_platform_data lis302_pdata_bottom; /* * generic SPI RX and TX bitbang * only call with interrupts off! */ static void __gta02_lis302dl_bitbang(struct lis302dl_info *lis, u8 *tx, int tx_bytes, u8 *rx, int rx_bytes) { struct lis302dl_platform_data *pdata = lis->pdata; int n; u8 shifter = 0; unsigned long other_cs; /* * Huh... "quirk"... CS on this device is not really "CS" like you can * expect. * * When it is 0 it selects SPI interface mode. * When it is 1 it selects I2C interface mode. * * Because we have 2 devices on one interface we have to make sure * that the "disabled" device (actually in I2C mode) don't think we're * talking to it. * * When we talk to the "enabled" device, the "disabled" device sees * the clocks as I2C clocks, creating havoc. * * I2C sees MOSI going LOW while CLK HIGH as a START action, thus we * must ensure this is never issued. */ if (&lis302_pdata_top == pdata) other_cs = lis302_pdata_bottom.pin_chip_select; else other_cs = lis302_pdata_top.pin_chip_select; s3c2410_gpio_setpin(other_cs, 1); s3c2410_gpio_setpin(pdata->pin_chip_select, 1); s3c2410_gpio_setpin(pdata->pin_clk, 1); s3c2410_gpio_setpin(pdata->pin_chip_select, 0); /* send the register index, r/w and autoinc bits */ for (n = 0; n < (tx_bytes << 3); n++) { if (!(n & 7)) shifter = ~tx[n >> 3]; s3c2410_gpio_setpin(pdata->pin_clk, 0); s3c2410_gpio_setpin(pdata->pin_mosi, !(shifter & 0x80)); s3c2410_gpio_setpin(pdata->pin_clk, 1); shifter <<= 1; } for (n = 0; n < (rx_bytes << 3); n++) { /* 8 bits each */ s3c2410_gpio_setpin(pdata->pin_clk, 0); shifter <<= 1; if (s3c2410_gpio_getpin(pdata->pin_miso)) shifter |= 1; if ((n & 7) == 7) rx[n >> 3] = shifter; s3c2410_gpio_setpin(pdata->pin_clk, 1); } s3c2410_gpio_setpin(pdata->pin_chip_select, 1); s3c2410_gpio_setpin(other_cs, 1); } static int gta02_lis302dl_bitbang_read_reg(struct lis302dl_info *lis, u8 reg) { u8 data = 0xc0 | reg; /* read, autoincrement */ unsigned long flags; local_irq_save(flags); __gta02_lis302dl_bitbang(lis, &data, 1, &data, 1); local_irq_restore(flags); return data; } static void gta02_lis302dl_bitbang_write_reg(struct lis302dl_info *lis, u8 reg, u8 val) { u8 data[2] = { 0x00 | reg, val }; /* write, no autoincrement */ unsigned long flags; local_irq_save(flags); __gta02_lis302dl_bitbang(lis, &data[0], 2, NULL, 0); local_irq_restore(flags); } void gta02_lis302dl_suspend_io(struct lis302dl_info *lis, int resume) { struct lis302dl_platform_data *pdata = lis->pdata; if (!resume) { /* * we don't want to power them with a high level * because GSENSOR_3V3 is not up during suspend */ s3c2410_gpio_setpin(pdata->pin_chip_select, 0); s3c2410_gpio_setpin(pdata->pin_clk, 0); s3c2410_gpio_setpin(pdata->pin_mosi, 0); /* misnomer: it is a pullDOWN in 2442 */ s3c2410_gpio_pullup(pdata->pin_miso, 1); return; } /* back to normal */ s3c2410_gpio_setpin(pdata->pin_chip_select, 1); s3c2410_gpio_setpin(pdata->pin_clk, 1); /* misnomer: it is a pullDOWN in 2442 */ s3c2410_gpio_pullup(pdata->pin_miso, 0); s3c2410_gpio_cfgpin(pdata->pin_chip_select, S3C2410_GPIO_OUTPUT); s3c2410_gpio_cfgpin(pdata->pin_clk, S3C2410_GPIO_OUTPUT); s3c2410_gpio_cfgpin(pdata->pin_mosi, S3C2410_GPIO_OUTPUT); s3c2410_gpio_cfgpin(pdata->pin_miso, S3C2410_GPIO_INPUT); } struct lis302dl_platform_data lis302_pdata_top = { .name = "lis302-1 (top)", .pin_chip_select= S3C2410_GPD12, .pin_clk = S3C2410_GPG7, .pin_mosi = S3C2410_GPG6, .pin_miso = S3C2410_GPG5, .interrupt = GTA02_IRQ_GSENSOR_1, .open_drain = 1, /* altered at runtime by PCB rev */ .lis302dl_bitbang = __gta02_lis302dl_bitbang, .lis302dl_bitbang_reg_read = gta02_lis302dl_bitbang_read_reg, .lis302dl_bitbang_reg_write = gta02_lis302dl_bitbang_write_reg, .lis302dl_suspend_io = gta02_lis302dl_suspend_io, }; struct lis302dl_platform_data lis302_pdata_bottom = { .name = "lis302-2 (bottom)", .pin_chip_select= S3C2410_GPD13, .pin_clk = S3C2410_GPG7, .pin_mosi = S3C2410_GPG6, .pin_miso = S3C2410_GPG5, .interrupt = GTA02_IRQ_GSENSOR_2, .open_drain = 1, /* altered at runtime by PCB rev */ .lis302dl_bitbang = __gta02_lis302dl_bitbang, .lis302dl_bitbang_reg_read = gta02_lis302dl_bitbang_read_reg, .lis302dl_bitbang_reg_write = gta02_lis302dl_bitbang_write_reg, .lis302dl_suspend_io = gta02_lis302dl_suspend_io, }; static struct platform_device s3c_device_spi_acc1 = { .name = "lis302dl", .id = 1, .dev = { .platform_data = &lis302_pdata_top, }, }; static struct platform_device s3c_device_spi_acc2 = { .name = "lis302dl", .id = 2, .dev = { .platform_data = &lis302_pdata_bottom, }, }; static struct resource gta02_led_resources[] = { { .name = "gta02-power:orange", .start = GTA02_GPIO_PWR_LED1, .end = GTA02_GPIO_PWR_LED1, }, { .name = "gta02-power:blue", .start = GTA02_GPIO_PWR_LED2, .end = GTA02_GPIO_PWR_LED2, }, { .name = "gta02-aux:red", .start = GTA02_GPIO_AUX_LED, .end = GTA02_GPIO_AUX_LED, }, }; struct platform_device gta02_led_dev = { .name = "gta02-led", .num_resources = ARRAY_SIZE(gta02_led_resources), .resource = gta02_led_resources, }; static struct resource gta02_button_resources[] = { [0] = { .start = GTA02_GPIO_AUX_KEY, .end = GTA02_GPIO_AUX_KEY, }, [1] = { .start = GTA02_GPIO_HOLD_KEY, .end = GTA02_GPIO_HOLD_KEY, }, [2] = { .start = GTA02_GPIO_JACK_INSERT, .end = GTA02_GPIO_JACK_INSERT, }, }; static struct platform_device gta02_button_dev = { .name = "neo1973-button", .num_resources = ARRAY_SIZE(gta02_button_resources), .resource = gta02_button_resources, }; static struct platform_device gta02_pm_usbhost_dev = { .name = "neo1973-pm-host", }; /* USB */ static struct s3c2410_hcd_info gta02_usb_info = { .port[0] = { .flags = S3C_HCDFLG_USED, }, .port[1] = { .flags = 0, }, }; static int glamo_irq_is_wired(void) { int rc; int count = 0; /* * GTA02 S-Media IRQs prior to A5 are broken due to a lack of * a pullup on the INT# line. Check for the bad behaviour. */ s3c2410_gpio_setpin(S3C2410_GPG4, 0); s3c2410_gpio_cfgpin(S3C2410_GPG4, S3C2410_GPG4_OUTP); s3c2410_gpio_cfgpin(S3C2410_GPG4, S3C2410_GPG4_INP); /* * we force it low ourselves for a moment and resume being input. * If there is a pullup, it won't stay low for long. But if the * level converter is there as on < A5 revision, the weak keeper * on the input of the LC will hold the line low indefinitiely */ do rc = s3c2410_gpio_getpin(S3C2410_GPG4); while ((!rc) && ((count++) < 10)); if (rc) { /* it got pulled back up, it's good */ printk(KERN_INFO "Detected S-Media IRQ# pullup, " "enabling interrupt\n"); return 0; } else /* Gah we can't work with this level converter */ printk(KERN_WARNING "** Detected bad IRQ# circuit found" " on pre-A5 GTA02: S-Media interrupt disabled **\n"); return -ENODEV; } static void gta02_glamo_mmc_set_power(unsigned char power_mode, unsigned short vdd) { int mv = 1650; int timeout = 500; printk(KERN_DEBUG "mmc_set_power(power_mode=%u, vdd=%u)\n", power_mode, vdd); switch (system_rev) { case GTA02v1_SYSTEM_REV: case GTA02v2_SYSTEM_REV: break; case GTA02v3_SYSTEM_REV: case GTA02v4_SYSTEM_REV: case GTA02v5_SYSTEM_REV: case GTA02v6_SYSTEM_REV: switch (power_mode) { case MMC_POWER_ON: case MMC_POWER_UP: /* depend on pcf50633 driver init + not suspended */ while (pcf50633_ready(pcf50633_global) && (timeout--)) msleep(5); if (timeout < 0) { printk(KERN_ERR"gta02_glamo_mmc_set_power " "BAILING on timeout\n"); return; } /* select and set the voltage */ if (vdd > 7) mv += 350 + 100 * (vdd - 8); printk(KERN_INFO "SD power -> %dmV\n", mv); pcf50633_voltage_set(pcf50633_global, PCF50633_REGULATOR_HCLDO, mv); pcf50633_onoff_set(pcf50633_global, PCF50633_REGULATOR_HCLDO, 1); break; case MMC_POWER_OFF: /* power off happens during suspend, when pcf50633 can * be already gone and not coming back... just forget * the action then because pcf50633 suspend already * dealt with it, otherwise we spin forever */ if (pcf50633_ready(pcf50633_global)) return; pcf50633_onoff_set(pcf50633_global, PCF50633_REGULATOR_HCLDO, 0); break; } break; } } /* Smedia Glamo 3362 */ /* * we crank down SD Card clock dynamically when GPS is powered */ static int gta02_glamo_mci_use_slow(void) { return neo1973_pm_gps_is_on(); } static void gta02_glamo_external_reset(int level) { s3c2410_gpio_setpin(GTA02_GPIO_3D_RESET, level); s3c2410_gpio_cfgpin(GTA02_GPIO_3D_RESET, S3C2410_GPIO_OUTPUT); } static struct glamofb_platform_data gta02_glamo_pdata = { .width = 43, .height = 58, /* 24.5MHz --> 40.816ns */ .pixclock = 40816, .left_margin = 8, .right_margin = 16, .upper_margin = 2, .lower_margin = 16, .hsync_len = 8, .vsync_len = 2, .fb_mem_size = 0x400000, /* glamo has 8 megs of SRAM. we use 4 */ .xres = { .min = 240, .max = 640, .defval = 480, }, .yres = { .min = 320, .max = 640, .defval = 640, }, .bpp = { .min = 16, .max = 16, .defval = 16, }, //.spi_info = &glamo_spi_cfg, .spigpio_info = &glamo_spigpio_cfg, /* glamo MMC function platform data */ .glamo_set_mci_power = gta02_glamo_mmc_set_power, .glamo_mci_use_slow = gta02_glamo_mci_use_slow, .glamo_irq_is_wired = glamo_irq_is_wired, .glamo_external_reset = gta02_glamo_external_reset }; static struct resource gta02_glamo_resources[] = { [0] = { .start = S3C2410_CS1, .end = S3C2410_CS1 + 0x1000000 - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = GTA02_IRQ_3D, .end = GTA02_IRQ_3D, .flags = IORESOURCE_IRQ, }, [2] = { .start = GTA02v1_GPIO_3D_RESET, .end = GTA02v1_GPIO_3D_RESET, }, }; static struct platform_device gta02_glamo_dev = { .name = "glamo3362", .num_resources = ARRAY_SIZE(gta02_glamo_resources), .resource = gta02_glamo_resources, .dev = { .platform_data = >a02_glamo_pdata, }, }; static void mangle_glamo_res_by_system_rev(void) { switch (system_rev) { case GTA02v1_SYSTEM_REV: break; default: gta02_glamo_resources[2].start = GTA02_GPIO_3D_RESET; gta02_glamo_resources[2].end = GTA02_GPIO_3D_RESET; break; } switch (system_rev) { case GTA02v1_SYSTEM_REV: case GTA02v2_SYSTEM_REV: case GTA02v3_SYSTEM_REV: /* case GTA02v4_SYSTEM_REV: - FIXME: handle this later */ /* The hardware is missing a pull-up resistor and thus can't * support the Smedia Glamo IRQ */ gta02_glamo_resources[1].start = 0; gta02_glamo_resources[1].end = 0; break; } } static void __init gta02_map_io(void) { s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc)); s3c24xx_init_clocks(12000000); s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs)); } static irqreturn_t gta02_modem_irq(int irq, void *param) { printk(KERN_DEBUG "modem wakeup interrupt\n"); gta_gsm_interrupts++; return IRQ_HANDLED; } static irqreturn_t ar6000_wow_irq(int irq, void *param) { printk(KERN_DEBUG "ar6000_wow interrupt\n"); return IRQ_HANDLED; } /* * hardware_ecc=1|0 */ static char hardware_ecc_str[4] __initdata = ""; static int __init hardware_ecc_setup(char *str) { if (str) strlcpy(hardware_ecc_str, str, sizeof(hardware_ecc_str)); return 1; } __setup("hardware_ecc=", hardware_ecc_setup); /* these are the guys that don't need to be children of PMU */ static struct platform_device *gta02_devices[] __initdata = { >a02_version_device, &s3c_device_usb, &s3c_device_wdt, >a02_memconfig_device, &s3c_device_sdi, &s3c_device_usbgadget, &s3c_device_nand, >a02_nor_flash, &sc32440_fiq_device, &s3c24xx_pwm_device, >a02_led_dev, >a02_pm_wlan_dev, /* not dependent on PMU */ >a02_pmu_dev, &s3c_device_iis, &s3c_device_i2c0, }; /* these guys DO need to be children of PMU */ static struct platform_device *gta02_devices_pmu_children[] = { >a02_glamo_dev, /* glamo-mci power handling depends on PMU */ &s3c_device_ts, /* input 1 */ >a01_pm_gps_dev, >a01_pm_bt_dev, >a02_pm_gsm_dev, >a02_pm_usbhost_dev, &s3c_device_spi_acc1, /* input 2 */ &s3c_device_spi_acc2, /* input 3 */ >a02_button_dev, /* input 4 */ >a02_resume_reason_device, }; /* this is called when pc50633 is probed, unfortunately quite late in the * day since it is an I2C bus device. Here we can belatedly define some * platform devices with the advantage that we can mark the pcf50633 as the * parent. This makes them get suspended and resumed with their parent * the pcf50633 still around. */ static void gta02_pcf50633_attach_child_devices(struct device *parent_device) { int n; for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++) gta02_devices_pmu_children[n]->dev.parent = parent_device; mangle_glamo_res_by_system_rev(); platform_add_devices(gta02_devices_pmu_children, ARRAY_SIZE(gta02_devices_pmu_children)); } static void __init gta02_machine_init(void) { int rc; /* set the panic callback to make AUX blink fast */ panic_blink = gta02_panic_blink; switch (system_rev) { case GTA02v6_SYSTEM_REV: /* we need push-pull interrupt from motion sensors */ lis302_pdata_top.open_drain = 0; lis302_pdata_bottom.open_drain = 0; break; default: break; } spin_lock_init(&motion_irq_lock); /* Glamo chip select optimization */ /* *((u32 *)(S3C2410_MEMREG(((1 + 1) << 2)))) = 0x1280; */ /* do not force soft ecc if we are asked to use hardware_ecc */ if (hardware_ecc_str[0] == '1') gta02_nand_info.software_ecc = 0; s3c_device_usb.dev.platform_data = >a02_usb_info; s3c_device_nand.dev.platform_data = >a02_nand_info; s3c_device_sdi.dev.platform_data = >a02_s3c_mmc_cfg; /* acc sensor chip selects */ s3c2410_gpio_setpin(S3C2410_GPD12, 1); s3c2410_gpio_cfgpin(S3C2410_GPD12, S3C2410_GPIO_OUTPUT); s3c2410_gpio_setpin(S3C2410_GPD13, 1); s3c2410_gpio_cfgpin(S3C2410_GPD13, S3C2410_GPIO_OUTPUT); s3c24xx_udc_set_platdata(>a02_udc_cfg); s3c_i2c0_set_platdata(NULL); set_s3c2410ts_info(>a02_ts_cfg); mangle_glamo_res_by_system_rev(); mangle_pmu_pdata_by_system_rev(); platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices)); s3c_pm_init(); /* Make sure the modem can wake us up */ set_irq_type(GTA02_IRQ_MODEM, IRQ_TYPE_EDGE_RISING); rc = request_irq(GTA02_IRQ_MODEM, gta02_modem_irq, IRQF_DISABLED, "modem", NULL); if (rc < 0) printk(KERN_ERR "GTA02: can't request GSM modem wakeup IRQ\n"); enable_irq_wake(GTA02_IRQ_MODEM); /* Make sure the wifi module can wake us up*/ set_irq_type(GTA02_IRQ_WLAN_GPIO1, IRQ_TYPE_EDGE_RISING); rc = request_irq(GTA02_IRQ_WLAN_GPIO1, ar6000_wow_irq, IRQF_DISABLED, "ar6000", NULL); if (rc < 0) printk(KERN_ERR "GTA02: can't request ar6k wakeup IRQ\n"); enable_irq_wake(GTA02_IRQ_WLAN_GPIO1); } void DEBUG_LED(int n) { // int *p = NULL; switch (n) { case 0: neo1973_gpb_setpin(GTA02_GPIO_PWR_LED1, 1); break; case 1: neo1973_gpb_setpin(GTA02_GPIO_PWR_LED2, 1); break; default: neo1973_gpb_setpin(GTA02_GPIO_AUX_LED, 1); break; } // printk(KERN_ERR"die %d\n", *p); } EXPORT_SYMBOL_GPL(DEBUG_LED); MACHINE_START(NEO1973_GTA02, "GTA02") .phys_io = S3C2410_PA_UART, .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, .boot_params = S3C2410_SDRAM_PA + 0x100, .map_io = gta02_map_io, .init_irq = s3c24xx_init_irq, .init_machine = gta02_machine_init, .timer = &s3c24xx_timer, MACHINE_END