From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- arch/arm/mach-omap1/board-voiceblue.c | 295 ++++++++++++++++++++++++++++++++++ 1 file changed, 295 insertions(+) create mode 100644 arch/arm/mach-omap1/board-voiceblue.c (limited to 'arch/arm/mach-omap1/board-voiceblue.c') diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c new file mode 100644 index 000000000..4677a9ccb --- /dev/null +++ b/arch/arm/mach-omap1/board-voiceblue.c @@ -0,0 +1,295 @@ +/* + * linux/arch/arm/mach-omap1/board-voiceblue.c + * + * Modified from board-generic.c + * + * Copyright (C) 2004 2N Telekomunikace, Ladislav Michl + * + * Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway). + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include + +#include +#include + +#include "common.h" + +static struct plat_serial8250_port voiceblue_ports[] = { + { + .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000), + .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, + .iotype = UPIO_MEM, + .regshift = 1, + .uartclk = 3686400, + }, + { + .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000), + .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, + .iotype = UPIO_MEM, + .regshift = 1, + .uartclk = 3686400, + }, + { + .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000), + .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, + .iotype = UPIO_MEM, + .regshift = 1, + .uartclk = 3686400, + }, + { + .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000), + .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, + .iotype = UPIO_MEM, + .regshift = 1, + .uartclk = 3686400, + }, + { }, +}; + +static struct platform_device serial_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM1, +}; + +static int __init ext_uart_init(void) +{ + if (!machine_is_voiceblue()) + return -ENODEV; + + voiceblue_ports[0].irq = gpio_to_irq(12); + voiceblue_ports[1].irq = gpio_to_irq(13); + voiceblue_ports[2].irq = gpio_to_irq(14); + voiceblue_ports[3].irq = gpio_to_irq(15); + serial_device.dev.platform_data = voiceblue_ports; + return platform_device_register(&serial_device); +} +arch_initcall(ext_uart_init); + +static struct physmap_flash_data voiceblue_flash_data = { + .width = 2, + .set_vpp = omap1_set_vpp, +}; + +static struct resource voiceblue_flash_resource = { + .start = OMAP_CS0_PHYS, + .end = OMAP_CS0_PHYS + SZ_32M - 1, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device voiceblue_flash_device = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &voiceblue_flash_data, + }, + .num_resources = 1, + .resource = &voiceblue_flash_resource, +}; + +static struct smc91x_platdata voiceblue_smc91x_info = { + .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT, + .leda = RPC_LED_100_10, + .ledb = RPC_LED_TX_RX, +}; + +static struct resource voiceblue_smc91x_resources[] = { + [0] = { + .start = OMAP_CS2_PHYS + 0x300, + .end = OMAP_CS2_PHYS + 0x300 + 16, + .flags = IORESOURCE_MEM, + }, + [1] = { + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, + }, +}; + +static struct platform_device voiceblue_smc91x_device = { + .name = "smc91x", + .id = 0, + .dev = { + .platform_data = &voiceblue_smc91x_info, + }, + .num_resources = ARRAY_SIZE(voiceblue_smc91x_resources), + .resource = voiceblue_smc91x_resources, +}; + +static struct platform_device *voiceblue_devices[] __initdata = { + &voiceblue_flash_device, + &voiceblue_smc91x_device, +}; + +static struct omap_usb_config voiceblue_usb_config __initdata = { + .hmc_mode = 3, + .register_host = 1, + .register_dev = 1, + .pins[0] = 2, + .pins[1] = 6, + .pins[2] = 6, +}; + +#define MACHINE_PANICED 1 +#define MACHINE_REBOOTING 2 +#define MACHINE_REBOOT 4 +static unsigned long machine_state; + +static int panic_event(struct notifier_block *this, unsigned long event, + void *ptr) +{ + if (test_and_set_bit(MACHINE_PANICED, &machine_state)) + return NOTIFY_DONE; + + /* Flash power LED */ + omap_writeb(0x78, OMAP_LPG1_LCR); + omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */ + + return NOTIFY_DONE; +} + +static struct notifier_block panic_block = { + .notifier_call = panic_event, +}; + +static int __init voiceblue_setup(void) +{ + if (!machine_is_voiceblue()) + return -ENODEV; + + /* Setup panic notifier */ + atomic_notifier_chain_register(&panic_notifier_list, &panic_block); + + return 0; +} +postcore_initcall(voiceblue_setup); + +static int wdt_gpio_state; + +void voiceblue_wdt_enable(void) +{ + gpio_direction_output(0, 0); + gpio_set_value(0, 1); + gpio_set_value(0, 0); + wdt_gpio_state = 0; +} + +void voiceblue_wdt_disable(void) +{ + gpio_set_value(0, 0); + gpio_set_value(0, 1); + gpio_set_value(0, 0); + gpio_direction_input(0); +} + +void voiceblue_wdt_ping(void) +{ + if (test_bit(MACHINE_REBOOT, &machine_state)) + return; + + wdt_gpio_state = !wdt_gpio_state; + gpio_set_value(0, wdt_gpio_state); +} + +static void voiceblue_restart(enum reboot_mode mode, const char *cmd) +{ + /* + * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28 + * "Global Software Reset Affects Traffic Controller Frequency". + */ + if (cpu_is_omap5912()) { + omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), DPLL_CTL); + omap_writew(0x8, ARM_RSTCT1); + } + + set_bit(MACHINE_REBOOT, &machine_state); + voiceblue_wdt_enable(); + while (1) ; +} + +EXPORT_SYMBOL(voiceblue_wdt_enable); +EXPORT_SYMBOL(voiceblue_wdt_disable); +EXPORT_SYMBOL(voiceblue_wdt_ping); + +static void __init voiceblue_init(void) +{ + /* mux pins for uarts */ + omap_cfg_reg(UART1_TX); + omap_cfg_reg(UART1_RTS); + omap_cfg_reg(UART2_TX); + omap_cfg_reg(UART2_RTS); + omap_cfg_reg(UART3_TX); + omap_cfg_reg(UART3_RX); + + /* Watchdog */ + gpio_request(0, "Watchdog"); + /* smc91x reset */ + gpio_request(7, "SMC91x reset"); + gpio_direction_output(7, 1); + udelay(2); /* wait at least 100ns */ + gpio_set_value(7, 0); + mdelay(50); /* 50ms until PHY ready */ + /* smc91x interrupt pin */ + gpio_request(8, "SMC91x irq"); + /* 16C554 reset*/ + gpio_request(6, "16C554 reset"); + gpio_direction_output(6, 0); + /* 16C554 interrupt pins */ + gpio_request(12, "16C554 irq"); + gpio_request(13, "16C554 irq"); + gpio_request(14, "16C554 irq"); + gpio_request(15, "16C554 irq"); + irq_set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING); + irq_set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING); + irq_set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING); + irq_set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING); + + voiceblue_smc91x_resources[1].start = gpio_to_irq(8); + voiceblue_smc91x_resources[1].end = gpio_to_irq(8); + platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices)); + omap_serial_init(); + omap1_usb_init(&voiceblue_usb_config); + omap_register_i2c_bus(1, 100, NULL, 0); + + /* There is a good chance board is going up, so enable power LED + * (it is connected through invertor) */ + omap_writeb(0x00, OMAP_LPG1_LCR); + omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */ +} + +MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910") + /* Maintainer: Ladislav Michl */ + .atag_offset = 0x100, + .map_io = omap15xx_map_io, + .init_early = omap1_init_early, + .init_irq = omap1_init_irq, + .init_machine = voiceblue_init, + .init_late = omap1_init_late, + .init_time = omap1_timer_init, + .restart = voiceblue_restart, +MACHINE_END -- cgit v1.2.3-54-g00ecf