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Diffstat (limited to 'kernel/arch/arm/mach-omap1/board-voiceblue.c')
-rw-r--r--kernel/arch/arm/mach-omap1/board-voiceblue.c295
1 files changed, 295 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-omap1/board-voiceblue.c b/kernel/arch/arm/mach-omap1/board-voiceblue.c
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+++ b/kernel/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 <michl@2n.cz>
+ *
+ * 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 <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mtd/physmap.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_reg.h>
+#include <linux/smc91x.h>
+#include <linux/export.h>
+#include <linux/reboot.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/board-voiceblue.h>
+#include <mach/flash.h>
+#include <mach/mux.h>
+#include <mach/tc.h>
+
+#include <mach/hardware.h>
+#include <mach/usb.h>
+
+#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 <michl@2n.cz> */
+ .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