/* * (c) 2010 STMicroelectronics Limited * * Author: Pawel Moll * * 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 #include #include #include #include #include #include /* ASC resources ---------------------------------------------------------- */ static struct stm_pad_config stx7141_asc0_mcard_pad_config = { .sysconfs_num = 4, /* !!! see stx7141_configure_asc() */ .sysconfs = (struct stm_pad_sysconf []) { /* MCARD_*: M-Card (0) or glue (1) */ STM_PAD_SYS_CFG(36, 16, 16, 1), /* ASC0_TXD: output enabled, no pull-up, not open drain */ STM_PAD_SYS_CFG(36, 19, 21, 2), /* ASC0_RXD: input */ STM_PAD_SYS_CFG(36, 22, 24, 0), /* ASC0_CTS & ASC0_RTS: ??? */ STM_PAD_SYS_CFG(36, 17, 18, 2), }, }; static struct stm_pad_config stx7141_asc1_pio10_pad_config = { .gpios_num = 4, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_OUT(10, 0, 3), /* TX */ STM_PAD_PIO_IN(10, 1, -1), /* RX */ STM_PAD_PIO_IN_NAMED(10, 2, -1, "CTS"), STM_PAD_PIO_OUT_NAMED(10, 3, 3, "RTS"), }, .sysconfs_num = 1, .sysconfs = (struct stm_pad_sysconf []) { /* ASC1_RXD/ASC1_CTS: from PIO10 (0) or from MCard (1) */ STM_PAD_SYS_CFG(36, 29, 29, 0), }, }; static struct stm_pad_config stx7141_asc1_mcard_pad_config = { .sysconfs_num = 5, .sysconfs = (struct stm_pad_sysconf []) { /* MCARD_*: M-Card (0) or glue (1) */ STM_PAD_SYS_CFG(36, 16, 16, 1), /* ASC1_TXD/ASC1_RTS: output enabled */ STM_PAD_SYS_CFG(36, 15, 15, 1), /* ASC1_RXD/ASC1_CTS: from PIO10 (0) or from MCard (1) */ STM_PAD_SYS_CFG(36, 29, 29, 1), /* ASC1_RXD: input */ STM_PAD_SYS_CFG(36, 14, 14, 0), /* ASC1_RTS: input */ STM_PAD_SYS_CFG(36, 13, 13, 0), }, }; static struct stm_pad_config stx7141_asc2_pio1_pad_config = { .gpios_num = 4, /* !!! see stx7141_configure_asc() */ .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_OUT(1, 0, 3), /* TX */ STM_PAD_PIO_IN(1, 1, -1), /* RX */ STM_PAD_PIO_IN_NAMED(1, 2, -1, "CTS"), STM_PAD_PIO_OUT_NAMED(1, 3, 3, "RTS"), }, .sysconfs_num = 1, .sysconfs = (struct stm_pad_sysconf []) { /* ASC2_RXD/ASC2_CTS: from PIO1 (0) or from PIO6 (3) */ STM_PAD_SYS_CFG(36, 30, 31, 0), }, }; static struct stm_pad_config stx7141_asc2_pio6_pad_config = { .gpios_num = 4, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_OUT(6, 0, 3), /* TX */ STM_PAD_PIO_IN(6, 1, -1), /* RX */ STM_PAD_PIO_IN_NAMED(6, 2, -1, "CTS"), STM_PAD_PIO_OUT_NAMED(6, 3, 3, "RTS"), }, .sysconfs_num = 1, .sysconfs = (struct stm_pad_sysconf []) { /* ASC2_RXD/ASC2_CTS: from PIO1 (0) or from PIO6 (3) */ STM_PAD_SYS_CFG(36, 30, 31, 3), }, }; static struct platform_device stx7141_asc_devices[] = { [0] = { .name = "stm-asc", /* .id set in stx7141_configure_asc() */ .num_resources = 4, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd030000, 0x2c), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(76), -1), STM_PLAT_RESOURCE_DMA_NAMED("rx_half_full", 11), STM_PLAT_RESOURCE_DMA_NAMED("tx_half_empty", 15), }, .dev.platform_data = &(struct stm_plat_asc_data) { .pad_config = &stx7141_asc0_mcard_pad_config, }, }, [1] = { .name = "stm-asc", /* .id set in stx7141_configure_asc() */ .num_resources = 4, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd031000, 0x2c), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(77), -1), STM_PLAT_RESOURCE_DMA_NAMED("rx_half_full", 12), STM_PLAT_RESOURCE_DMA_NAMED("tx_half_empty", 16), }, .dev.platform_data = &(struct stm_plat_asc_data) { /* .pad_config set in stx7141_configure_asc() */ }, }, [2] = { .name = "stm-asc", /* .id set in stx7141_configure_asc() */ .num_resources = 4, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd032000, 0x2c), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(78), -1), STM_PLAT_RESOURCE_DMA_NAMED("rx_half_full", 13), STM_PLAT_RESOURCE_DMA_NAMED("tx_half_empty", 17), }, .dev.platform_data = &(struct stm_plat_asc_data) { /* .pad_config set in stx7141_configure_asc() */ }, }, }; /* Note these three variables are global, and shared with the stasc driver * for console bring up prior to platform initialisation. */ /* the serial console device */ int __initdata stm_asc_console_device; /* Platform devices to register */ unsigned int __initdata stm_asc_configured_devices_num = 0; struct platform_device __initdata *stm_asc_configured_devices[ARRAY_SIZE(stx7141_asc_devices)]; void __init stx7141_configure_asc(int asc, struct stx7141_asc_config *config) { static int configured[ARRAY_SIZE(stx7141_asc_devices)]; static int tty_id; struct stx7141_asc_config default_config = {}; struct platform_device *pdev; struct stm_plat_asc_data *plat_data; struct stm_pad_config *pad_config = NULL; BUG_ON(asc < 0 || asc >= ARRAY_SIZE(stx7141_asc_devices)); BUG_ON(configured[asc]); configured[asc] = 1; if (!config) config = &default_config; pdev = &stx7141_asc_devices[asc]; plat_data = pdev->dev.platform_data; pdev->id = tty_id++; plat_data->hw_flow_control = config->hw_flow_control; switch (asc) { case 0: pad_config = &stx7141_asc0_mcard_pad_config; if (!config->hw_flow_control) { stm_pad_set_pio_ignored(pad_config, "RTS"); stm_pad_set_pio_ignored(pad_config, "CTS"); pad_config->sysconfs_num--; } BUG_ON(config->routing.asc0 != stx7141_asc0_mcard); break; case 1: switch (config->routing.asc1) { case stx7141_asc1_pio10: pad_config = &stx7141_asc1_pio10_pad_config; if (!config->hw_flow_control) { stm_pad_set_pio_ignored(pad_config, "RTS"); stm_pad_set_pio_ignored(pad_config, "CTS"); } break; case stx7141_asc1_mcard: pad_config = &stx7141_asc1_mcard_pad_config; /* The HW flow control will be available anyway */ WARN_ON(!config->hw_flow_control); break; default: BUG(); break; } break; case 2: switch (config->routing.asc2) { case stx7141_asc2_pio1: pad_config = &stx7141_asc2_pio1_pad_config; break; case stx7141_asc2_pio6: pad_config = &stx7141_asc2_pio6_pad_config; break; default: BUG(); break; } if (!config->hw_flow_control) { stm_pad_set_pio_ignored(pad_config, "RTS"); stm_pad_set_pio_ignored(pad_config, "CTS"); } break; default: BUG(); break; } plat_data->pad_config = pad_config; if (config->is_console) stm_asc_console_device = pdev->id; stm_asc_configured_devices[stm_asc_configured_devices_num++] = pdev; } /* Add platform device as configured by board specific code */ static int __init stx7141_add_asc(void) { return platform_add_devices(stm_asc_configured_devices, stm_asc_configured_devices_num); } arch_initcall(stx7141_add_asc); /* SSC resources ---------------------------------------------------------- */ /* WARNING! SSCs were numbered starting from 1 in early documents. * Later it was changed and this approach is used below, * so the first SSC is SSC0 (zero). */ /* Pad configuration for I2C mode */ static struct stm_pad_config stx7141_ssc_i2c_pad_configs[] = { [0] = { .gpios_num = 2, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_BIDIR_NAMED(2, 0, 1, "SCL"), STM_PAD_PIO_BIDIR_NAMED(2, 1, 1, "SDA"), }, }, [1] = { .gpios_num = 2, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_BIDIR_NAMED(2, 3, 1, "SCL"), STM_PAD_PIO_BIDIR_NAMED(2, 4, 1, "SDA"), }, }, [2] = { .gpios_num = 2, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_BIDIR_NAMED(2, 6, 1, "SCL"), STM_PAD_PIO_BIDIR_NAMED(2, 7, 1, "SDA"), }, }, [3] = { .gpios_num = 2, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_BIDIR_NAMED(3, 0, 1, "SCL"), STM_PAD_PIO_BIDIR_NAMED(3, 1, 1, "SDA"), }, }, [4] = { .gpios_num = 2, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_BIDIR_NAMED(3, 2, 1, "SCL"), STM_PAD_PIO_BIDIR_NAMED(3, 3, 1, "SDA"), }, }, [5] = { .gpios_num = 2, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_BIDIR_NAMED(3, 4, 1, "SCL"), STM_PAD_PIO_BIDIR_NAMED(3, 5, 1, "SDA"), }, }, [6] = { .gpios_num = 2, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_BIDIR_NAMED(4, 0, 1, "SCL"), STM_PAD_PIO_BIDIR_NAMED(4, 1, 1, "SDA"), }, }, }; /* Pad configuration for SPI mode */ static struct stm_pad_config stx7141_ssc_spi_pad_configs[] = { [0] = { .gpios_num = 3, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_OUT(2, 0, 1), /* SCK */ STM_PAD_PIO_OUT(2, 1, 1), /* MOSI */ STM_PAD_PIO_IN(2, 2, -1), /* MISO */ }, }, [1] = { .gpios_num = 3, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_OUT(2, 3, 1), /* SCK */ STM_PAD_PIO_OUT(2, 4, 1), /* MOSI */ STM_PAD_PIO_IN(2, 5, -1), /* MISO */ }, }, [5] = { .gpios_num = 3, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_OUT(3, 4, 1), /* SCK */ STM_PAD_PIO_OUT(3, 5, 1), /* MOSI */ STM_PAD_PIO_IN(3, 6, -1), /* MISO */ }, }, }; static struct platform_device stx7141_ssc_devices[] = { [0] = { /* .name & .id set in stx7141_configure_ssc_*() */ .num_resources = 2, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd040000, 0x110), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(69), -1), }, .dev.platform_data = &(struct stm_plat_ssc_data) { /* .pad_config_* set in stx7141_configure_ssc_*() */ }, }, [1] = { /* .name & .id set in stx7141_configure_ssc_*() */ .num_resources = 2, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd041000, 0x110), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(70), -1), }, .dev.platform_data = &(struct stm_plat_ssc_data) { /* .pad_config_* set in stx7141_configure_ssc_*() */ }, }, [2] = { /* .name & .id set in stx7141_configure_ssc_*() */ .num_resources = 2, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd042000, 0x110), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(71), -1), }, .dev.platform_data = &(struct stm_plat_ssc_data) { /* .pad_config_* set in stx7141_configure_ssc_*() */ }, }, [3] = { /* .name & .id set in stx7141_configure_ssc_*() */ .num_resources = 2, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd043000, 0x110), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(72), -1), }, .dev.platform_data = &(struct stm_plat_ssc_data) { /* .pad_config_* set in stx7141_configure_ssc_*() */ }, }, [4] = { /* .name & .id set in stx7141_configure_ssc_*() */ .num_resources = 2, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd044000, 0x110), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(73), -1), }, .dev.platform_data = &(struct stm_plat_ssc_data) { /* .pad_config_* set in stx7141_configure_ssc_*() */ }, }, [5] = { /* .name & .id set in stx7141_configure_ssc_*() */ .num_resources = 2, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd045000, 0x110), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(74), -1), }, .dev.platform_data = &(struct stm_plat_ssc_data) { /* .pad_config_* set in stx7141_configure_ssc_*() */ }, }, [6] = { /* .name & .id set in stx7141_configure_ssc_*() */ .num_resources = 2, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd046000, 0x110), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(75), -1), }, .dev.platform_data = &(struct stm_plat_ssc_data) { /* .pad_config_* set in stx7141_configure_ssc_*() */ }, }, }; static int __initdata stx7141_ssc_configured[ARRAY_SIZE(stx7141_ssc_devices)]; int __init stx7141_configure_ssc_i2c(int ssc) { static int i2c_busnum; struct stm_plat_ssc_data *plat_data; BUG_ON(ssc < 0 || ssc >= ARRAY_SIZE(stx7141_ssc_devices)); BUG_ON(stx7141_ssc_configured[ssc]); stx7141_ssc_configured[ssc] = 1; stx7141_ssc_devices[ssc].name = "i2c-stm"; stx7141_ssc_devices[ssc].id = i2c_busnum; plat_data = stx7141_ssc_devices[ssc].dev.platform_data; plat_data->pad_config = &stx7141_ssc_i2c_pad_configs[ssc]; /* I2C bus number reservation (to prevent any hot-plug device * from using it) */ i2c_register_board_info(i2c_busnum, NULL, 0); platform_device_register(&stx7141_ssc_devices[ssc]); return i2c_busnum++; } int __init stx7141_configure_ssc_spi(int ssc, struct stx7141_ssc_spi_config *config) { static int spi_busnum; struct stm_plat_ssc_data *plat_data; BUG_ON(ssc < 0 || ssc >= ARRAY_SIZE(stx7141_ssc_devices)); BUG_ON(stx7141_ssc_configured[ssc]); stx7141_ssc_configured[ssc] = 1; /* These two SSC can't be used in SPI mode - there is no * MRST pin available */ BUG_ON(ssc == 2 || ssc == 4); stx7141_ssc_devices[ssc].name = "spi-stm"; stx7141_ssc_devices[ssc].id = spi_busnum; plat_data = stx7141_ssc_devices[ssc].dev.platform_data; if (config) plat_data->spi_chipselect = config->chipselect; plat_data->pad_config = &stx7141_ssc_spi_pad_configs[ssc]; platform_device_register(&stx7141_ssc_devices[ssc]); return spi_busnum++; } /* LiRC resources --------------------------------------------------------- */ static struct platform_device stx7141_lirc_device = { .name = "lirc-stm", .id = -1, .num_resources = 2, .resource = (struct resource []) { STM_PLAT_RESOURCE_MEM(0xfd018000, 0x234), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(81), -1), STM_PLAT_RESOURCE_IRQ(COMMS_ILC_EXT_IRQ(86), -1), }, .dev.platform_data = &(struct stm_plat_lirc_data) { /* The clock settings will be calculated by * the driver from the system clock */ .irbclock = 0, /* use current_cpu data */ .irbclkdiv = 0, /* automatically calculate */ .irbperiodmult = 0, .irbperioddiv = 0, .irbontimemult = 0, .irbontimediv = 0, .irbrxmaxperiod = 0x5000, .sysclkdiv = 1, .rxpolarity = 1, }, }; void __init stx7141_configure_lirc(struct stx7141_lirc_config *config) { static int configured; struct stx7141_lirc_config default_config = {}; struct stm_plat_lirc_data *plat_data = stx7141_lirc_device.dev.platform_data; struct stm_pad_config *pad_config; BUG_ON(configured); configured = 1; if (!config) config = &default_config; pad_config = stm_pad_config_alloc(3, 0); BUG_ON(!pad_config); plat_data->txenabled = config->tx_enabled || config->tx_od_enabled; plat_data->pads = pad_config; switch (config->rx_mode) { case stx7141_lirc_rx_disabled: /* Nothing to do */ break; case stx7141_lirc_rx_mode_ir: plat_data->rxuhfmode = 0; stm_pad_config_add_pio_in(pad_config, 5, 2, -1); break; case stx7141_lirc_rx_mode_uhf: plat_data->rxuhfmode = 1; stm_pad_config_add_pio_in(pad_config, 3, 7, -1); break; default: BUG(); break; } if (config->tx_enabled) stm_pad_config_add_pio_out(pad_config, 5, 3, 1); if (config->tx_od_enabled) stm_pad_config_add_pio_out(pad_config, 5, 4, 1); platform_device_register(&stx7141_lirc_device); } /* PWM resources ---------------------------------------------------------- */ static struct stm_plat_pwm_data stx7141_pwm_platform_data = { .channel_pad_config = { [0] = &(struct stm_pad_config) { .gpios_num = 1, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_OUT(4, 3, 2), }, }, [1] = &(struct stm_pad_config) { .gpios_num = 1, .gpios = (struct stm_pad_gpio []) { STM_PAD_PIO_OUT(4, 2, 2), }, }, }, }; static struct platform_device stx7141_pwm_device = { .name = "stm-pwm", .id = -1, .num_resources = 2, .resource = (struct resource[]) { STM_PLAT_RESOURCE_MEM(0xfd010000, 0x68), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(85), -1), }, .dev.platform_data = &stx7141_pwm_platform_data, }; void __init stx7141_configure_pwm(struct stx7141_pwm_config *config) { static int configured; BUG_ON(configured); configured = 1; if (config) { stx7141_pwm_platform_data.channel_enabled[0] = config->out0_enabled; stx7141_pwm_platform_data.channel_enabled[1] = config->out1_enabled; } platform_device_register(&stx7141_pwm_device); } /* Low Power Controller ---------------------------------------------------- */ static struct platform_device stx7141_lpc_device = { .name = "stm-rtc", .id = -1, .num_resources = 2, .resource = (struct resource[]){ STM_PLAT_RESOURCE_MEM(0xfd008000, 0x600), STM_PLAT_RESOURCE_IRQ(ILC_IRQ(83), -1), }, .dev.platform_data = &(struct stm_plat_rtc_lpc) { .clk_id = "CLKB_LPC", .need_wdt_reset = 1, .irq_edge_level = IRQ_TYPE_EDGE_FALLING, } }; static int __init stx7141_add_lpc(void) { return platform_device_register(&stx7141_lpc_device); } module_init(stx7141_add_lpc);