diff options
Diffstat (limited to 'arch/arm/mach-iop32x/n2100.c')
| -rw-r--r-- | arch/arm/mach-iop32x/n2100.c | 71 |
1 files changed, 51 insertions, 20 deletions
diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c index d2e42789972..c1cd80ecc21 100644 --- a/arch/arm/mach-iop32x/n2100.c +++ b/arch/arm/mach-iop32x/n2100.c @@ -23,7 +23,6 @@ #include <linux/pci.h> #include <linux/pm.h> #include <linux/string.h> -#include <linux/slab.h> #include <linux/serial_core.h> #include <linux/serial_8250.h> #include <linux/mtd/physmap.h> @@ -31,6 +30,7 @@ #include <linux/platform_device.h> #include <linux/reboot.h> #include <linux/io.h> +#include <linux/gpio.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/mach/arch.h> @@ -41,6 +41,7 @@ #include <asm/page.h> #include <asm/pgtable.h> #include <mach/time.h> +#include "gpio-iop32x.h" /* * N2100 timer tick configuration. @@ -51,11 +52,6 @@ static void __init n2100_timer_init(void) iop_init_time(198000000); } -static struct sys_timer n2100_timer = { - .init = n2100_timer_init, - .offset = iop_gettimeoffset, -}; - /* * N2100 I/O. @@ -80,7 +76,7 @@ void __init n2100_map_io(void) * N2100 PCI. */ static int __init -n2100_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +n2100_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { int irq; @@ -116,11 +112,10 @@ n2100_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) } static struct hw_pci n2100_pci __initdata = { - .swizzle = pci_std_swizzle, .nr_controllers = 1, + .ops = &iop3xx_ops, .setup = iop3xx_pci_setup, .preinit = iop3xx_pci_preinit, - .scan = iop3xx_pci_scan_bus, .map_irq = n2100_pci_map_irq, }; @@ -178,7 +173,7 @@ static struct plat_serial8250_port n2100_serial_port[] = { .mapbase = N2100_UART, .membase = (char *)N2100_UART, .irq = 0, - .flags = UPF_SKIP_TEST, + .flags = UPF_SKIP_TEST | UPF_AUTO_IRQ | UPF_SHARE_IRQ, .iotype = UPIO_MEM, .regshift = 0, .uartclk = 1843200, @@ -293,12 +288,26 @@ static void n2100_power_off(void) ; } +static void n2100_restart(enum reboot_mode mode, const char *cmd) +{ + int ret; + + ret = gpio_direction_output(N2100_HARDWARE_RESET, 0); + if (ret) { + pr_crit("could not drive reset GPIO low\n"); + return; + } + /* Wait for reset to happen */ + while (1) + ; +} + static struct timer_list power_button_poll_timer; static void power_button_poll(unsigned long dummy) { - if (gpio_line_get(N2100_POWER_BUTTON) == 0) { + if (gpio_get_value(N2100_POWER_BUTTON) == 0) { ctrl_alt_del(); return; } @@ -307,9 +316,37 @@ static void power_button_poll(unsigned long dummy) add_timer(&power_button_poll_timer); } +static int __init n2100_request_gpios(void) +{ + int ret; + + if (!machine_is_n2100()) + return 0; + + ret = gpio_request(N2100_HARDWARE_RESET, "reset"); + if (ret) + pr_err("could not request reset GPIO\n"); + + ret = gpio_request(N2100_POWER_BUTTON, "power"); + if (ret) + pr_err("could not request power GPIO\n"); + else { + ret = gpio_direction_input(N2100_POWER_BUTTON); + if (ret) + pr_err("could not set power GPIO as input\n"); + } + /* Set up power button poll timer */ + init_timer(&power_button_poll_timer); + power_button_poll_timer.function = power_button_poll; + power_button_poll_timer.expires = jiffies + (HZ / 10); + add_timer(&power_button_poll_timer); + return 0; +} +device_initcall(n2100_request_gpios); static void __init n2100_init_machine(void) { + register_iop32x_gpio(); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&n2100_flash_device); platform_device_register(&n2100_serial_device); @@ -320,20 +357,14 @@ static void __init n2100_init_machine(void) ARRAY_SIZE(n2100_i2c_devices)); pm_power_off = n2100_power_off; - - init_timer(&power_button_poll_timer); - power_button_poll_timer.function = power_button_poll; - power_button_poll_timer.expires = jiffies + (HZ / 10); - add_timer(&power_button_poll_timer); } MACHINE_START(N2100, "Thecus N2100") /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ - .phys_io = N2100_UART, - .io_pg_offst = ((N2100_UART) >> 18) & 0xfffc, - .boot_params = 0xa0000100, + .atag_offset = 0x100, .map_io = n2100_map_io, .init_irq = iop32x_init_irq, - .timer = &n2100_timer, + .init_time = n2100_timer_init, .init_machine = n2100_init_machine, + .restart = n2100_restart, MACHINE_END |