--- /dev/null
+/*
+ * linux/arch/arm/mach-sa1100/simpad.c
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/proc_fs.h>
+#include <linux/string.h>
+#include <linux/pm.h>
+#include <linux/platform_data/sa11x0-serial.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/ucb1x00.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <mach/hardware.h>
+#include <asm/setup.h>
+#include <asm/irq.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/map.h>
+#include <linux/platform_data/mfd-mcp-sa11x0.h>
+#include <mach/simpad.h>
+#include <mach/irqs.h>
+
+#include <linux/serial_core.h>
+#include <linux/ioport.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+#include <linux/leds.h>
+#include <linux/i2c-gpio.h>
+
+#include "generic.h"
+
+/*
+ * CS3 support
+ */
+
+static long cs3_shadow;
+static spinlock_t cs3_lock;
+static struct gpio_chip cs3_gpio;
+
+long simpad_get_cs3_ro(void)
+{
+ return readl(CS3_BASE);
+}
+EXPORT_SYMBOL(simpad_get_cs3_ro);
+
+long simpad_get_cs3_shadow(void)
+{
+ return cs3_shadow;
+}
+EXPORT_SYMBOL(simpad_get_cs3_shadow);
+
+static void __simpad_write_cs3(void)
+{
+ writel(cs3_shadow, CS3_BASE);
+}
+
+void simpad_set_cs3_bit(int value)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&cs3_lock, flags);
+ cs3_shadow |= value;
+ __simpad_write_cs3();
+ spin_unlock_irqrestore(&cs3_lock, flags);
+}
+EXPORT_SYMBOL(simpad_set_cs3_bit);
+
+void simpad_clear_cs3_bit(int value)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&cs3_lock, flags);
+ cs3_shadow &= ~value;
+ __simpad_write_cs3();
+ spin_unlock_irqrestore(&cs3_lock, flags);
+}
+EXPORT_SYMBOL(simpad_clear_cs3_bit);
+
+static void cs3_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ if (offset > 15)
+ return;
+ if (value)
+ simpad_set_cs3_bit(1 << offset);
+ else
+ simpad_clear_cs3_bit(1 << offset);
+};
+
+static int cs3_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ if (offset > 15)
+ return simpad_get_cs3_ro() & (1 << (offset - 16));
+ return simpad_get_cs3_shadow() & (1 << offset);
+};
+
+static int cs3_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ if (offset > 15)
+ return 0;
+ return -EINVAL;
+};
+
+static int cs3_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ if (offset > 15)
+ return -EINVAL;
+ cs3_gpio_set(chip, offset, value);
+ return 0;
+};
+
+static struct map_desc simpad_io_desc[] __initdata = {
+ { /* MQ200 */
+ .virtual = 0xf2800000,
+ .pfn = __phys_to_pfn(0x4b800000),
+ .length = 0x00800000,
+ .type = MT_DEVICE
+ }, { /* Simpad CS3 */
+ .virtual = (unsigned long)CS3_BASE,
+ .pfn = __phys_to_pfn(SA1100_CS3_PHYS),
+ .length = 0x00100000,
+ .type = MT_DEVICE
+ },
+};
+
+
+static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
+{
+ if (port->mapbase == (u_int)&Ser1UTCR0) {
+ if (state)
+ {
+ simpad_clear_cs3_bit(RS232_ON);
+ simpad_clear_cs3_bit(DECT_POWER_ON);
+ }else
+ {
+ simpad_set_cs3_bit(RS232_ON);
+ simpad_set_cs3_bit(DECT_POWER_ON);
+ }
+ }
+}
+
+static struct sa1100_port_fns simpad_port_fns __initdata = {
+ .pm = simpad_uart_pm,
+};
+
+
+static struct mtd_partition simpad_partitions[] = {
+ {
+ .name = "SIMpad boot firmware",
+ .size = 0x00080000,
+ .offset = 0,
+ .mask_flags = MTD_WRITEABLE,
+ }, {
+ .name = "SIMpad kernel",
+ .size = 0x0010000,
+ .offset = MTDPART_OFS_APPEND,
+ }, {
+ .name = "SIMpad root jffs2",
+ .size = MTDPART_SIZ_FULL,
+ .offset = MTDPART_OFS_APPEND,
+ }
+};
+
+static struct flash_platform_data simpad_flash_data = {
+ .map_name = "cfi_probe",
+ .parts = simpad_partitions,
+ .nr_parts = ARRAY_SIZE(simpad_partitions),
+};
+
+
+static struct resource simpad_flash_resources [] = {
+ DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_16M),
+ DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_16M),
+};
+
+static struct ucb1x00_plat_data simpad_ucb1x00_data = {
+ .gpio_base = SIMPAD_UCB1X00_GPIO_BASE,
+};
+
+static struct mcp_plat_data simpad_mcp_data = {
+ .mccr0 = MCCR0_ADM,
+ .sclk_rate = 11981000,
+ .codec_pdata = &simpad_ucb1x00_data,
+};
+
+
+
+static void __init simpad_map_io(void)
+{
+ sa1100_map_io();
+
+ iotable_init(simpad_io_desc, ARRAY_SIZE(simpad_io_desc));
+
+ /* Initialize CS3 */
+ cs3_shadow = (EN1 | EN0 | LED2_ON | DISPLAY_ON |
+ RS232_ON | ENABLE_5V | RESET_SIMCARD | DECT_POWER_ON);
+ __simpad_write_cs3(); /* Spinlocks not yet initialized */
+
+ sa1100_register_uart_fns(&simpad_port_fns);
+ sa1100_register_uart(0, 3); /* serial interface */
+ sa1100_register_uart(1, 1); /* DECT */
+
+ // Reassign UART 1 pins
+ GAFR |= GPIO_UART_TXD | GPIO_UART_RXD;
+ GPDR |= GPIO_UART_TXD | GPIO_LDD13 | GPIO_LDD15;
+ GPDR &= ~GPIO_UART_RXD;
+ PPAR |= PPAR_UPR;
+
+ /*
+ * Set up registers for sleep mode.
+ */
+
+
+ PWER = PWER_GPIO0| PWER_RTC;
+ PGSR = 0x818;
+ PCFR = 0;
+ PSDR = 0;
+
+}
+
+static void simpad_power_off(void)
+{
+ local_irq_disable();
+ cs3_shadow = SD_MEDIAQ;
+ __simpad_write_cs3(); /* Bypass spinlock here */
+
+ /* disable internal oscillator, float CS lines */
+ PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS);
+ /* enable wake-up on GPIO0 */
+ PWER = GFER = GRER = PWER_GPIO0;
+ /*
+ * set scratchpad to zero, just in case it is used as a
+ * restart address by the bootloader.
+ */
+ PSPR = 0;
+ PGSR = 0;
+ /* enter sleep mode */
+ PMCR = PMCR_SF;
+ while(1);
+
+ local_irq_enable(); /* we won't ever call it */
+
+
+}
+
+/*
+ * gpio_keys
+*/
+
+static struct gpio_keys_button simpad_button_table[] = {
+ { KEY_POWER, IRQ_GPIO_POWER_BUTTON, 1, "power button" },
+};
+
+static struct gpio_keys_platform_data simpad_keys_data = {
+ .buttons = simpad_button_table,
+ .nbuttons = ARRAY_SIZE(simpad_button_table),
+};
+
+static struct platform_device simpad_keys = {
+ .name = "gpio-keys",
+ .dev = {
+ .platform_data = &simpad_keys_data,
+ },
+};
+
+static struct gpio_keys_button simpad_polled_button_table[] = {
+ { KEY_PROG1, SIMPAD_UCB1X00_GPIO_PROG1, 1, "prog1 button" },
+ { KEY_PROG2, SIMPAD_UCB1X00_GPIO_PROG2, 1, "prog2 button" },
+ { KEY_UP, SIMPAD_UCB1X00_GPIO_UP, 1, "up button" },
+ { KEY_DOWN, SIMPAD_UCB1X00_GPIO_DOWN, 1, "down button" },
+ { KEY_LEFT, SIMPAD_UCB1X00_GPIO_LEFT, 1, "left button" },
+ { KEY_RIGHT, SIMPAD_UCB1X00_GPIO_RIGHT, 1, "right button" },
+};
+
+static struct gpio_keys_platform_data simpad_polled_keys_data = {
+ .buttons = simpad_polled_button_table,
+ .nbuttons = ARRAY_SIZE(simpad_polled_button_table),
+ .poll_interval = 50,
+};
+
+static struct platform_device simpad_polled_keys = {
+ .name = "gpio-keys-polled",
+ .dev = {
+ .platform_data = &simpad_polled_keys_data,
+ },
+};
+
+/*
+ * GPIO LEDs
+ */
+
+static struct gpio_led simpad_leds[] = {
+ {
+ .name = "simpad:power",
+ .gpio = SIMPAD_CS3_LED2_ON,
+ .active_low = 0,
+ .default_trigger = "default-on",
+ },
+};
+
+static struct gpio_led_platform_data simpad_led_data = {
+ .num_leds = ARRAY_SIZE(simpad_leds),
+ .leds = simpad_leds,
+};
+
+static struct platform_device simpad_gpio_leds = {
+ .name = "leds-gpio",
+ .id = 0,
+ .dev = {
+ .platform_data = &simpad_led_data,
+ },
+};
+
+/*
+ * i2c
+ */
+static struct i2c_gpio_platform_data simpad_i2c_data = {
+ .sda_pin = GPIO_GPIO21,
+ .scl_pin = GPIO_GPIO25,
+ .udelay = 10,
+ .timeout = HZ,
+};
+
+static struct platform_device simpad_i2c = {
+ .name = "i2c-gpio",
+ .id = 0,
+ .dev = {
+ .platform_data = &simpad_i2c_data,
+ },
+};
+
+/*
+ * MediaQ Video Device
+ */
+static struct platform_device simpad_mq200fb = {
+ .name = "simpad-mq200",
+ .id = 0,
+};
+
+static struct platform_device *devices[] __initdata = {
+ &simpad_keys,
+ &simpad_polled_keys,
+ &simpad_mq200fb,
+ &simpad_gpio_leds,
+ &simpad_i2c,
+};
+
+
+
+static int __init simpad_init(void)
+{
+ int ret;
+
+ spin_lock_init(&cs3_lock);
+
+ cs3_gpio.label = "simpad_cs3";
+ cs3_gpio.base = SIMPAD_CS3_GPIO_BASE;
+ cs3_gpio.ngpio = 24;
+ cs3_gpio.set = cs3_gpio_set;
+ cs3_gpio.get = cs3_gpio_get;
+ cs3_gpio.direction_input = cs3_gpio_direction_input;
+ cs3_gpio.direction_output = cs3_gpio_direction_output;
+ ret = gpiochip_add(&cs3_gpio);
+ if (ret)
+ printk(KERN_WARNING "simpad: Unable to register cs3 GPIO device");
+
+ pm_power_off = simpad_power_off;
+
+ sa11x0_ppc_configure_mcp();
+ sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
+ ARRAY_SIZE(simpad_flash_resources));
+ sa11x0_register_mcp(&simpad_mcp_data);
+
+ ret = platform_add_devices(devices, ARRAY_SIZE(devices));
+ if(ret)
+ printk(KERN_WARNING "simpad: Unable to register mq200 framebuffer device");
+
+ return 0;
+}
+
+arch_initcall(simpad_init);
+
+
+MACHINE_START(SIMPAD, "Simpad")
+ /* Maintainer: Holger Freyther */
+ .atag_offset = 0x100,
+ .map_io = simpad_map_io,
+ .nr_irqs = SA1100_NR_IRQS,
+ .init_irq = sa1100_init_irq,
+ .init_late = sa11x0_init_late,
+ .init_time = sa1100_timer_init,
+ .restart = sa11x0_restart,
+MACHINE_END
Code Review / kvmfornfv.git / blobdiff