diff options
| -rw-r--r-- | arch/arm/mach-omap1/Kconfig | 8 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-generic.c | 38 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-h2.c | 27 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-h3.c | 17 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-innovator.c | 13 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-netstar.c | 9 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-osk.c | 124 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-perseus2.c | 5 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/board-voiceblue.c | 62 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/devices.c | 351 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/fpga.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/io.c | 30 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/irq.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/leds-h2p2-debug.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/leds-innovator.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/leds-osk.c | 8 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/leds.c | 12 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/serial.c | 84 | ||||
| -rw-r--r-- | arch/arm/mach-omap1/time.c | 40 |
20 files changed, 743 insertions, 99 deletions
diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig index 7408ac94f771..27fc2e8e5fca 100644 --- a/arch/arm/mach-omap1/Kconfig +++ b/arch/arm/mach-omap1/Kconfig @@ -47,6 +47,14 @@ config MACH_OMAP_OSK TI OMAP 5912 OSK (OMAP Starter Kit) board support. Say Y here if you have such a board. +config OMAP_OSK_MISTRAL + bool "Mistral QVGA board Support" + depends on MACH_OMAP_OSK + help + The OSK supports an optional add-on board with a Quarter-VGA + touchscreen, PDA-ish buttons, a resume button, bicolor LED, + and camera connector. Say Y here if you have this board. + config MACH_OMAP_PERSEUS2 bool "TI Perseus2" depends on ARCH_OMAP1 && ARCH_OMAP730 diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile index d386fd913f0c..181a93deaaee 100644 --- a/arch/arm/mach-omap1/Makefile +++ b/arch/arm/mach-omap1/Makefile @@ -3,7 +3,7 @@ # # Common support -obj-y := io.o id.o irq.o time.o serial.o +obj-y := io.o id.o irq.o time.o serial.o devices.o led-y := leds.o # Specific board support @@ -23,6 +23,7 @@ endif # LEDs support led-$(CONFIG_MACH_OMAP_H2) += leds-h2p2-debug.o +led-$(CONFIG_MACH_OMAP_H3) += leds-h2p2-debug.o led-$(CONFIG_MACH_OMAP_INNOVATOR) += leds-innovator.o led-$(CONFIG_MACH_OMAP_PERSEUS2) += leds-h2p2-debug.o led-$(CONFIG_MACH_OMAP_OSK) += leds-osk.o diff --git a/arch/arm/mach-omap1/board-generic.c b/arch/arm/mach-omap1/board-generic.c index 122796ebe8f5..c209c7172a9a 100644 --- a/arch/arm/mach-omap1/board-generic.c +++ b/arch/arm/mach-omap1/board-generic.c @@ -48,19 +48,43 @@ static struct omap_usb_config generic1510_usb_config __initdata = { #if defined(CONFIG_ARCH_OMAP16XX) static struct omap_usb_config generic1610_usb_config __initdata = { +#ifdef CONFIG_USB_OTG + .otg = 1, +#endif .register_host = 1, .register_dev = 1, .hmc_mode = 16, .pins[0] = 6, }; + +static struct omap_mmc_config generic_mmc_config __initdata = { + .mmc [0] = { + .enabled = 0, + .wire4 = 0, + .wp_pin = -1, + .power_pin = -1, + .switch_pin = -1, + }, + .mmc [1] = { + .enabled = 0, + .wire4 = 0, + .wp_pin = -1, + .power_pin = -1, + .switch_pin = -1, + }, +}; + #endif static struct omap_board_config_kernel generic_config[] = { { OMAP_TAG_USB, NULL }, + { OMAP_TAG_MMC, &generic_mmc_config }, }; static void __init omap_generic_init(void) { + const struct omap_uart_config *uart_conf; + /* * Make sure the serial ports are muxed on at this point. * You have to mux them off in device drivers later on @@ -76,6 +100,18 @@ static void __init omap_generic_init(void) generic_config[0].data = &generic1610_usb_config; } #endif + + uart_conf = omap_get_config(OMAP_TAG_UART, struct omap_uart_config); + if (uart_conf != NULL) { + unsigned int enabled_ports, i; + + enabled_ports = uart_conf->enabled_uarts; + for (i = 0; i < 3; i++) { + if (!(enabled_ports & (1 << i))) + generic_serial_ports[i] = 0; + } + } + omap_board_config = generic_config; omap_board_config_size = ARRAY_SIZE(generic_config); omap_serial_init(generic_serial_ports); @@ -83,7 +119,7 @@ static void __init omap_generic_init(void) static void __init omap_generic_map_io(void) { - omap_map_common_io() + omap_map_common_io(); } MACHINE_START(OMAP_GENERIC, "Generic OMAP1510/1610/1710") diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c index f4983ee95ab4..d46a70063b0c 100644 --- a/arch/arm/mach-omap1/board-h2.c +++ b/arch/arm/mach-omap1/board-h2.c @@ -33,6 +33,7 @@ #include <asm/mach/map.h> #include <asm/arch/gpio.h> +#include <asm/arch/mux.h> #include <asm/arch/tc.h> #include <asm/arch/usb.h> #include <asm/arch/common.h> @@ -80,8 +81,7 @@ static struct flash_platform_data h2_flash_data = { }; static struct resource h2_flash_resource = { - .start = OMAP_CS2B_PHYS, - .end = OMAP_CS2B_PHYS + OMAP_CS2B_SIZE - 1, + /* This is on CS3, wherever it's mapped */ .flags = IORESOURCE_MEM, }; @@ -126,10 +126,9 @@ static void __init h2_init_smc91x(void) printk("Error requesting gpio 0 for smc91x irq\n"); return; } - omap_set_gpio_edge_ctrl(0, OMAP_GPIO_FALLING_EDGE); } -void h2_init_irq(void) +static void __init h2_init_irq(void) { omap_init_irq(); omap_gpio_init(); @@ -152,9 +151,13 @@ static struct omap_usb_config h2_usb_config __initdata = { }; static struct omap_mmc_config h2_mmc_config __initdata = { - .mmc_blocks = 1, - .mmc1_power_pin = -1, /* tps65010 gpio3 */ - .mmc1_switch_pin = OMAP_MPUIO(1), + .mmc [0] = { + .enabled = 1, + .wire4 = 1, + .wp_pin = OMAP_MPUIO(3), + .power_pin = -1, /* tps65010 gpio3 */ + .switch_pin = OMAP_MPUIO(1), + }, }; static struct omap_board_config_kernel h2_config[] = { @@ -164,6 +167,16 @@ static struct omap_board_config_kernel h2_config[] = { static void __init h2_init(void) { + /* NOTE: revC boards support NAND-boot, which can put NOR on CS2B + * and NAND (either 16bit or 8bit) on CS3. + */ + h2_flash_resource.end = h2_flash_resource.start = omap_cs3_phys(); + h2_flash_resource.end += SZ_32M - 1; + + /* MMC: card detect and WP */ + // omap_cfg_reg(U19_ARMIO1); /* CD */ + omap_cfg_reg(BALLOUT_V8_ARMIO3); /* WP */ + platform_add_devices(h2_devices, ARRAY_SIZE(h2_devices)); omap_board_config = h2_config; omap_board_config_size = ARRAY_SIZE(h2_config); diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c index 7cd419d61b40..2798613696fa 100644 --- a/arch/arm/mach-omap1/board-h3.c +++ b/arch/arm/mach-omap1/board-h3.c @@ -82,8 +82,7 @@ static struct flash_platform_data h3_flash_data = { }; static struct resource h3_flash_resource = { - .start = OMAP_CS2B_PHYS, - .end = OMAP_CS2B_PHYS + OMAP_CS2B_SIZE - 1, + /* This is on CS3, wherever it's mapped */ .flags = IORESOURCE_MEM, }; @@ -161,13 +160,26 @@ static struct omap_usb_config h3_usb_config __initdata = { .pins[1] = 3, }; +static struct omap_mmc_config h3_mmc_config __initdata = { + .mmc[0] = { + .enabled = 1, + .power_pin = -1, /* tps65010 GPIO4 */ + .switch_pin = OMAP_MPUIO(1), + }, +}; + static struct omap_board_config_kernel h3_config[] = { { OMAP_TAG_USB, &h3_usb_config }, + { OMAP_TAG_MMC, &h3_mmc_config }, }; static void __init h3_init(void) { + h3_flash_resource.end = h3_flash_resource.start = omap_cs3_phys(); + h3_flash_resource.end += OMAP_CS3_SIZE - 1; (void) platform_add_devices(devices, ARRAY_SIZE(devices)); + omap_board_config = h3_config; + omap_board_config_size = ARRAY_SIZE(h3_config); } static void __init h3_init_smc91x(void) @@ -177,7 +189,6 @@ static void __init h3_init_smc91x(void) printk("Error requesting gpio 40 for smc91x irq\n"); return; } - omap_set_gpio_edge_ctrl(40, OMAP_GPIO_FALLING_EDGE); } void h3_init_irq(void) diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c index 91de60a91ef8..df0312b596e4 100644 --- a/arch/arm/mach-omap1/board-innovator.c +++ b/arch/arm/mach-omap1/board-innovator.c @@ -29,6 +29,7 @@ #include <asm/mach/flash.h> #include <asm/mach/map.h> +#include <asm/arch/mux.h> #include <asm/arch/fpga.h> #include <asm/arch/gpio.h> #include <asm/arch/tc.h> @@ -173,7 +174,6 @@ static void __init innovator_init_smc91x(void) printk("Error requesting gpio 0 for smc91x irq\n"); return; } - omap_set_gpio_edge_ctrl(0, OMAP_GPIO_RISING_EDGE); } } @@ -220,8 +220,19 @@ static struct omap_usb_config h2_usb_config __initdata = { }; #endif +static struct omap_mmc_config innovator_mmc_config __initdata = { + .mmc [0] = { + .enabled = 1, + .wire4 = 1, + .wp_pin = OMAP_MPUIO(3), + .power_pin = -1, /* FPGA F3 UIO42 */ + .switch_pin = -1, /* FPGA F4 UIO43 */ + }, +}; + static struct omap_board_config_kernel innovator_config[] = { { OMAP_TAG_USB, NULL }, + { OMAP_TAG_MMC, &innovator_mmc_config }, }; static void __init innovator_init(void) diff --git a/arch/arm/mach-omap1/board-netstar.c b/arch/arm/mach-omap1/board-netstar.c index 6750b2014092..d904e643f5ec 100644 --- a/arch/arm/mach-omap1/board-netstar.c +++ b/arch/arm/mach-omap1/board-netstar.c @@ -75,16 +75,15 @@ static void __init netstar_init(void) mdelay(50); /* 50ms until PHY ready */ /* smc91x interrupt pin */ omap_request_gpio(8); - omap_set_gpio_edge_ctrl(8, OMAP_GPIO_RISING_EDGE); omap_request_gpio(12); omap_request_gpio(13); omap_request_gpio(14); omap_request_gpio(15); - omap_set_gpio_edge_ctrl(12, OMAP_GPIO_FALLING_EDGE); - omap_set_gpio_edge_ctrl(13, OMAP_GPIO_FALLING_EDGE); - omap_set_gpio_edge_ctrl(14, OMAP_GPIO_FALLING_EDGE); - omap_set_gpio_edge_ctrl(15, OMAP_GPIO_FALLING_EDGE); + set_irq_type(OMAP_GPIO_IRQ(12), IRQT_FALLING); + set_irq_type(OMAP_GPIO_IRQ(13), IRQT_FALLING); + set_irq_type(OMAP_GPIO_IRQ(14), IRQT_FALLING); + set_irq_type(OMAP_GPIO_IRQ(15), IRQT_FALLING); platform_add_devices(netstar_devices, ARRAY_SIZE(netstar_devices)); diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index 6844e536c698..21103df50415 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -29,11 +29,16 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/device.h> +#include <linux/interrupt.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> #include <asm/hardware.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include <asm/mach/flash.h> #include <asm/arch/gpio.h> #include <asm/arch/usb.h> @@ -41,12 +46,56 @@ #include <asm/arch/tc.h> #include <asm/arch/common.h> -static struct map_desc osk5912_io_desc[] __initdata = { -{ OMAP_OSK_NOR_FLASH_BASE, OMAP_OSK_NOR_FLASH_START, OMAP_OSK_NOR_FLASH_SIZE, - MT_DEVICE }, +static int __initdata osk_serial_ports[OMAP_MAX_NR_PORTS] = {1, 0, 0}; + +static struct mtd_partition osk_partitions[] = { + /* bootloader (U-Boot, etc) in first sector */ + { + .name = "bootloader", + .offset = 0, + .size = SZ_128K, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + /* bootloader params in the next sector */ + { + .name = "params", + .offset = MTDPART_OFS_APPEND, + .size = SZ_128K, + .mask_flags = 0, + }, { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = SZ_2M, + .mask_flags = 0 + }, { + .name = "filesystem", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + .mask_flags = 0 + } }; -static int __initdata osk_serial_ports[OMAP_MAX_NR_PORTS] = {1, 0, 0}; +static struct flash_platform_data osk_flash_data = { + .map_name = "cfi_probe", + .width = 2, + .parts = osk_partitions, + .nr_parts = ARRAY_SIZE(osk_partitions), +}; + +static struct resource osk_flash_resource = { + /* this is on CS3, wherever it's mapped */ + .flags = IORESOURCE_MEM, +}; + +static struct platform_device osk5912_flash_device = { + .name = "omapflash", + .id = 0, + .dev = { + .platform_data = &osk_flash_data, + }, + .num_resources = 1, + .resource = &osk_flash_resource, +}; static struct resource osk5912_smc91x_resources[] = { [0] = { @@ -86,9 +135,16 @@ static struct platform_device osk5912_cf_device = { .resource = osk5912_cf_resources, }; +static struct platform_device osk5912_mcbsp1_device = { + .name = "omap_mcbsp", + .id = 1, +}; + static struct platform_device *osk5912_devices[] __initdata = { + &osk5912_flash_device, &osk5912_smc91x_device, &osk5912_cf_device, + &osk5912_mcbsp1_device, }; static void __init osk_init_smc91x(void) @@ -97,7 +153,6 @@ static void __init osk_init_smc91x(void) printk("Error requesting gpio 0 for smc91x irq\n"); return; } - omap_set_gpio_edge_ctrl(0, OMAP_GPIO_RISING_EDGE); /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ EMIFS_CCS(1) |= 0x2; @@ -110,11 +165,11 @@ static void __init osk_init_cf(void) printk("Error requesting gpio 62 for CF irq\n"); return; } - /* it's really active-low */ - omap_set_gpio_edge_ctrl(62, OMAP_GPIO_FALLING_EDGE); + /* the CF I/O IRQ is really active-low */ + set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING); } -void osk_init_irq(void) +static void __init osk_init_irq(void) { omap_init_irq(); omap_gpio_init(); @@ -142,18 +197,69 @@ static struct omap_board_config_kernel osk_config[] = { { OMAP_TAG_USB, &osk_usb_config }, }; +#ifdef CONFIG_OMAP_OSK_MISTRAL + +#ifdef CONFIG_PM +static irqreturn_t +osk_mistral_wake_interrupt(int irq, void *ignored, struct pt_regs *regs) +{ + return IRQ_HANDLED; +} +#endif + +static void __init osk_mistral_init(void) +{ + /* FIXME here's where to feed in framebuffer, touchpad, and + * keyboard setup ... not in the drivers for those devices! + * + * NOTE: we could actually tell if there's a Mistral board + * attached, e.g. by trying to read something from the ads7846. + * But this is too early for that... + */ + + /* the sideways button (SW1) is for use as a "wakeup" button */ + omap_cfg_reg(N15_1610_MPUIO2); + if (omap_request_gpio(OMAP_MPUIO(2)) == 0) { + int ret = 0; + omap_set_gpio_direction(OMAP_MPUIO(2), 1); + set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING); +#ifdef CONFIG_PM + /* share the IRQ in case someone wants to use the + * button for more than wakeup from system sleep. + */ + ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), + &osk_mistral_wake_interrupt, + SA_SHIRQ, "mistral_wakeup", + &osk_mistral_wake_interrupt); + if (ret != 0) { + omap_free_gpio(OMAP_MPUIO(2)); + printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n", + ret); + } else + enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2))); +#endif + } else + printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n"); +} +#else +static void __init osk_mistral_init(void) { } +#endif + static void __init osk_init(void) { + osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); + osk_flash_resource.end += SZ_32M - 1; platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); omap_board_config = osk_config; omap_board_config_size = ARRAY_SIZE(osk_config); USB_TRANSCEIVER_CTRL_REG |= (3 << 1); + + osk_mistral_init(); } static void __init osk_map_io(void) { omap_map_common_io(); - iotable_init(osk5912_io_desc, ARRAY_SIZE(osk5912_io_desc)); omap_serial_init(osk_serial_ports); } diff --git a/arch/arm/mach-omap1/board-perseus2.c b/arch/arm/mach-omap1/board-perseus2.c index 213317392d9b..107c68c8ab54 100644 --- a/arch/arm/mach-omap1/board-perseus2.c +++ b/arch/arm/mach-omap1/board-perseus2.c @@ -24,6 +24,7 @@ #include <asm/mach/flash.h> #include <asm/mach/map.h> +#include <asm/arch/tc.h> #include <asm/arch/gpio.h> #include <asm/arch/mux.h> #include <asm/arch/fpga.h> @@ -83,8 +84,8 @@ static struct flash_platform_data p2_flash_data = { }; static struct resource p2_flash_resource = { - .start = OMAP_FLASH_0_START, - .end = OMAP_FLASH_0_START + OMAP_FLASH_0_SIZE - 1, + .start = OMAP_CS0_PHYS, + .end = OMAP_CS0_PHYS + SZ_32M - 1, .flags = IORESOURCE_MEM, }; diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c index e42281988990..209d79ef1d5f 100644 --- a/arch/arm/mach-omap1/board-voiceblue.c +++ b/arch/arm/mach-omap1/board-voiceblue.c @@ -25,13 +25,14 @@ #include <asm/hardware.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> +#include <asm/mach/flash.h> #include <asm/mach/map.h> +#include <asm/arch/common.h> #include <asm/arch/gpio.h> -#include <asm/arch/tc.h> #include <asm/arch/mux.h> +#include <asm/arch/tc.h> #include <asm/arch/usb.h> -#include <asm/arch/common.h> extern void omap_init_time(void); extern int omap_gpio_init(void); @@ -86,6 +87,27 @@ static int __init ext_uart_init(void) } arch_initcall(ext_uart_init); +static struct flash_platform_data voiceblue_flash_data = { + .map_name = "cfi_probe", + .width = 2, +}; + +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 = "omapflash", + .id = 0, + .dev = { + .platform_data = &voiceblue_flash_data, + }, + .num_resources = 1, + .resource = &voiceblue_flash_resource, +}; + static struct resource voiceblue_smc91x_resources[] = { [0] = { .start = OMAP_CS2_PHYS + 0x300, @@ -107,6 +129,7 @@ static struct platform_device voiceblue_smc91x_device = { }; static struct platform_device *voiceblue_devices[] __initdata = { + &voiceblue_flash_device, &voiceblue_smc91x_device, }; @@ -119,8 +142,17 @@ static struct omap_usb_config voiceblue_usb_config __initdata = { .pins[2] = 6, }; +static struct omap_mmc_config voiceblue_mmc_config __initdata = { + .mmc[0] = { + .enabled = 1, + .power_pin = 2, + .switch_pin = -1, + }, +}; + static struct omap_board_config_kernel voiceblue_config[] = { { OMAP_TAG_USB, &voiceblue_usb_config }, + { OMAP_TAG_MMC, &voiceblue_mmc_config }, }; static void __init voiceblue_init_irq(void) @@ -131,9 +163,6 @@ static void __init voiceblue_init_irq(void) static void __init voiceblue_init(void) { - /* There is a good chance board is going up, so enable Power LED - * (it is connected through invertor) */ - omap_writeb(0x00, OMAP_LPG1_LCR); /* Watchdog */ omap_request_gpio(0); /* smc91x reset */ @@ -145,7 +174,6 @@ static void __init voiceblue_init(void) mdelay(50); /* 50ms until PHY ready */ /* smc91x interrupt pin */ omap_request_gpio(8); - omap_set_gpio_edge_ctrl(8, OMAP_GPIO_RISING_EDGE); /* 16C554 reset*/ omap_request_gpio(6); omap_set_gpio_direction(6, 0); @@ -155,14 +183,19 @@ static void __init voiceblue_init(void) omap_request_gpio(13); omap_request_gpio(14); omap_request_gpio(15); - omap_set_gpio_edge_ctrl(12, OMAP_GPIO_RISING_EDGE); - omap_set_gpio_edge_ctrl(13, OMAP_GPIO_RISING_EDGE); - omap_set_gpio_edge_ctrl(14, OMAP_GPIO_RISING_EDGE); - omap_set_gpio_edge_ctrl(15, OMAP_GPIO_RISING_EDGE); + set_irq_type(OMAP_GPIO_IRQ(12), IRQT_RISING); + set_irq_type(OMAP_GPIO_IRQ(13), IRQT_RISING); + set_irq_type(OMAP_GPIO_IRQ(14), IRQT_RISING); + set_irq_type(OMAP_GPIO_IRQ(15), IRQT_RISING); platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices)); omap_board_config = voiceblue_config; omap_board_config_size = ARRAY_SIZE(voiceblue_config); + + /* 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 */ } static int __initdata omap_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 1}; @@ -184,9 +217,9 @@ static int panic_event(struct notifier_block *this, unsigned long event, if (test_and_set_bit(MACHINE_PANICED, &machine_state)) return NOTIFY_DONE; - /* Flash Power LED - * (TODO: Enable clock right way (enabled in bootloader already)) */ + /* Flash power LED */ omap_writeb(0x78, OMAP_LPG1_LCR); + omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */ return NOTIFY_DONE; } @@ -195,15 +228,14 @@ static struct notifier_block panic_block = { .notifier_call = panic_event, }; -static int __init setup_notifier(void) +static int __init voiceblue_setup(void) { /* Setup panic notifier */ notifier_chain_register(&panic_notifier_list, &panic_block); return 0; } - -postcore_initcall(setup_notifier); +postcore_initcall(voiceblue_setup); static int wdt_gpio_state; diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c new file mode 100644 index 000000000000..e8b3981444cd --- /dev/null +++ b/arch/arm/mach-omap1/devices.c @@ -0,0 +1,351 @@ +/* + * linux/arch/arm/mach-omap1/devices.c + * + * OMAP1 platform device setup/initialization + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/device.h> + +#include <asm/hardware.h> +#include <asm/io.h> +#include <asm/mach-types.h> +#include <asm/mach/map.h> + +#include <asm/arch/tc.h> +#include <asm/arch/board.h> +#include <asm/arch/mux.h> +#include <asm/arch/gpio.h> + + +static void omap_nop_release(struct device *dev) +{ + /* Nothing */ +} + +/*-------------------------------------------------------------------------*/ + +#if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE) + +#define OMAP_I2C_BASE 0xfffb3800 + +static struct resource i2c_resources[] = { + { + .start = OMAP_I2C_BASE, + .end = OMAP_I2C_BASE + 0x3f, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_I2C, + .flags = IORESOURCE_IRQ, + }, +}; + +/* DMA not used; works around erratum writing to non-empty i2c fifo */ + +static struct platform_device omap_i2c_device = { + .name = "i2c_omap", + .id = -1, + .dev = { + .release = omap_nop_release, + }, + .num_resources = ARRAY_SIZE(i2c_resources), + .resource = i2c_resources, +}; + +static void omap_init_i2c(void) +{ + /* FIXME define and use a boot tag, in case of boards that + * either don't wire up I2C, or chips that mux it differently... + * it can include clocking and address info, maybe more. + */ + omap_cfg_reg(I2C_SCL); + omap_cfg_reg(I2C_SDA); + + (void) platform_device_register(&omap_i2c_device); +} +#else +static inline void omap_init_i2c(void) {} +#endif + +/*-------------------------------------------------------------------------*/ + +#if defined(CONFIG_OMAP1610_IR) || defined(CONFIG_OMAP161O_IR_MODULE) + +static u64 irda_dmamask = 0xffffffff; + +static struct platform_device omap1610ir_device = { + .name = "omap1610-ir", + .id = -1, + .dev = { + .release = omap_nop_release, + .dma_mask = &irda_dmamask, + }, +}; + +static void omap_init_irda(void) +{ + /* FIXME define and use a boot tag, members something like: + * u8 uart; // uart1, or uart3 + * ... but driver only handles uart3 for now + * s16 fir_sel; // gpio for SIR vs FIR + * ... may prefer a callback for SIR/MIR/FIR mode select; + * while h2 uses a GPIO, H3 uses a gpio expander + */ + if (machine_is_omap_h2() + || machine_is_omap_h3()) + (void) platform_device_register(&omap1610ir_device); +} +#else +static inline void omap_init_irda(void) {} +#endif + +/*-------------------------------------------------------------------------*/ + +#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) + +#define OMAP_MMC1_BASE 0xfffb7800 +#define OMAP_MMC2_BASE 0xfffb7c00 /* omap16xx only */ + +static struct omap_mmc_conf mmc1_conf; + +static u64 mmc1_dmamask = 0xffffffff; + +static struct resource mmc1_resources[] = { + { + .start = IO_ADDRESS(OMAP_MMC1_BASE), + .end = IO_ADDRESS(OMAP_MMC1_BASE) + 0x7f, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_MMC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device mmc_omap_device1 = { + .name = "mmci-omap", + .id = 1, + .dev = { + .release = omap_nop_release, + .dma_mask = &mmc1_dmamask, + .platform_data = &mmc1_conf, + }, + .num_resources = ARRAY_SIZE(mmc1_resources), + .resource = mmc1_resources, +}; + +#ifdef CONFIG_ARCH_OMAP16XX + +static struct omap_mmc_conf mmc2_conf; + +static u64 mmc2_dmamask = 0xffffffff; + +static struct resource mmc2_resources[] = { + { + .start = IO_ADDRESS(OMAP_MMC2_BASE), + .end = IO_ADDRESS(OMAP_MMC2_BASE) + 0x7f, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_1610_MMC2, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device mmc_omap_device2 = { + .name = "mmci-omap", + .id = 2, + .dev = { + .release = omap_nop_release, + .dma_mask = &mmc2_dmamask, + .platform_data = &mmc2_conf, + }, + .num_resources = ARRAY_SIZE(mmc2_resources), + .resource = mmc2_resources, +}; +#endif + +static void __init omap_init_mmc(void) +{ + const struct omap_mmc_config *mmc_conf; + const struct omap_mmc_conf *mmc; + + /* NOTE: assumes MMC was never (wrongly) enabled */ + mmc_conf = omap_get_config(OMAP_TAG_MMC, struct omap_mmc_config); + if (!mmc_conf) + return; + + /* block 1 is always available and has just one pinout option */ + mmc = &mmc_conf->mmc[0]; + if (mmc->enabled) { + omap_cfg_reg(MMC_CMD); + omap_cfg_reg(MMC_CLK); + omap_cfg_reg(MMC_DAT0); + if (cpu_is_omap1710()) { + omap_cfg_reg(M15_1710_MMC_CLKI); + omap_cfg_reg(P19_1710_MMC_CMDDIR); + omap_cfg_reg(P20_1710_MMC_DATDIR0); + } + if (mmc->wire4) { + omap_cfg_reg(MMC_DAT1); + /* NOTE: DAT2 can be on W10 (here) or M15 */ + if (!mmc->nomux) + omap_cfg_reg(MMC_DAT2); + omap_cfg_reg(MMC_DAT3); + } + mmc1_conf = *mmc; + (void) platform_device_register(&mmc_omap_device1); + } + +#ifdef CONFIG_ARCH_OMAP16XX + /* block 2 is on newer chips, and has many pinout options */ + mmc = &mmc_conf->mmc[1]; + if (mmc->enabled) { + if (!mmc->nomux) { + omap_cfg_reg(Y8_1610_MMC2_CMD); + omap_cfg_reg(Y10_1610_MMC2_CLK); + omap_cfg_reg(R18_1610_MMC2_CLKIN); + omap_cfg_reg(W8_1610_MMC2_DAT0); + if (mmc->wire4) { + omap_cfg_reg(V8_1610_MMC2_DAT1); + omap_cfg_reg(W15_1610_MMC2_DAT2); + omap_cfg_reg(R10_1610_MMC2_DAT3); + } + + /* These are needed for the level shifter */ + omap_cfg_reg(V9_1610_MMC2_CMDDIR); + omap_cfg_reg(V5_1610_MMC2_DATDIR0); + omap_cfg_reg(W19_1610_MMC2_DATDIR1); + } + + /* Feedback clock must be set on OMAP-1710 MMC2 */ + if (cpu_is_omap1710()) + omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24), + MOD_CONF_CTRL_1); + mmc2_conf = *mmc; + (void) platform_device_register(&mmc_omap_device2); + } +#endif + return; +} +#else +static inline void omap_init_mmc(void) {} +#endif + +#if defined(CONFIG_OMAP_RTC) || defined(CONFIG_OMAP_RTC) + +#define OMAP_RTC_BASE 0xfffb4800 + +static struct resource rtc_resources[] = { + { + .start = OMAP_RTC_BASE, + .end = OMAP_RTC_BASE + 0x5f, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_RTC_TIMER, + .flags = IORESOURCE_IRQ, + }, + { + .start = INT_RTC_ALARM, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device omap_rtc_device = { + .name = "omap_rtc", + .id = -1, + .dev = { + .release = omap_nop_release, + }, + .num_resources = ARRAY_SIZE(rtc_resources), + .resource = rtc_resources, +}; + +static void omap_init_rtc(void) +{ + (void) platform_device_register(&omap_rtc_device); +} +#else +static inline void omap_init_rtc(void) {} +#endif + +/*-------------------------------------------------------------------------*/ + +#if defined(CONFIG_OMAP16XX_WATCHDOG) || defined(CONFIG_OMAP16XX_WATCHDOG_MODULE) + +#define OMAP_WDT_BASE 0xfffeb000 + +static struct resource wdt_resources[] = { + { + .start = OMAP_WDT_BASE, + .end = OMAP_WDT_BASE + 0x4f, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device omap_wdt_device = { + .name = "omap1610_wdt", + .id = -1, + .dev = { + .release = omap_nop_release, + }, + .num_resources = ARRAY_SIZE(wdt_resources), + .resource = wdt_resources, +}; + +static void omap_init_wdt(void) +{ + (void) platform_device_register(&omap_wdt_device); +} +#else +static inline void omap_init_wdt(void) {} +#endif + + +/*-------------------------------------------------------------------------*/ + +/* + * This gets called after board-specific INIT_MACHINE, and initializes most + * on-chip peripherals accessible on this board (except for few like USB): + * + * (a) Does any "standard config" pin muxing needed. Board-specific + * code will have muxed GPIO pins and done "nonstandard" setup; + * that code could live in the boot loader. + * (b) Populating board-specific platform_data with the data drivers + * rely on to handle wiring variations. + * (c) Creating platform devices as meaningful on this board and + * with this kernel configuration. + * + * Claiming GPIOs, and setting their direction and initial values, is the + * responsibility of the device drivers. So is responding to probe(). + * + * Board-specific knowlege like creating devices or pin setup is to be + * kept out of drivers as much as possible. In particular, pin setup + * may be handled by the boot loader, and drivers should expect it will + * normally have been done by the time they're probed. + */ +static int __init omap_init_devices(void) +{ + /* please keep these calls, and their implementations above, + * in alphabetical order so they're easier to sort through. + */ + omap_init_i2c(); + omap_init_irda(); + omap_init_mmc(); + omap_init_rtc(); + omap_init_wdt(); + + return 0; +} +arch_initcall(omap_init_devices); + diff --git a/arch/arm/mach-omap1/fpga.c b/arch/arm/mach-omap1/fpga.c index c12a78335625..aca2a120813a 100644 --- a/arch/arm/mach-omap1/fpga.c +++ b/arch/arm/mach-omap1/fpga.c @@ -1,5 +1,5 @@ /* - * linux/arch/arm/mach-omap/fpga.c + * linux/arch/arm/mach-omap1/fpga.c * * Interrupt handler for OMAP-1510 Innovator FPGA * @@ -181,7 +181,7 @@ void omap1510_fpga_init_irq(void) */ omap_request_gpio(13); omap_set_gpio_direction(13, 1); - omap_set_gpio_edge_ctrl(13, OMAP_GPIO_RISING_EDGE); + set_irq_type(OMAP_GPIO_IRQ(13), IRQT_RISING); set_irq_chained_handler(OMAP1510_INT_FPGA, innovator_fpga_IRQ_demux); } diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c index 207df0fe934d..eb8261d7dead 100644 --- a/arch/arm/mach-omap1/io.c +++ b/arch/arm/mach-omap1/io.c @@ -19,6 +19,7 @@ extern int clk_init(void); extern void omap_check_revision(void); +extern void omap_sram_init(void); /* * The machine specific code may provide the extra mapping besides the @@ -32,7 +33,6 @@ static struct map_desc omap_io_desc[] __initdata = { static struct map_desc omap730_io_desc[] __initdata = { { OMAP730_DSP_BASE, OMAP730_DSP_START, OMAP730_DSP_SIZE, MT_DEVICE }, { OMAP730_DSPREG_BASE, OMAP730_DSPREG_START, OMAP730_DSPREG_SIZE, MT_DEVICE }, - { OMAP730_SRAM_BASE, OMAP730_SRAM_START, OMAP730_SRAM_SIZE, MT_DEVICE } }; #endif @@ -40,27 +40,13 @@ static struct map_desc omap730_io_desc[] __initdata = { static struct map_desc omap1510_io_desc[] __initdata = { { OMAP1510_DSP_BASE, OMAP1510_DSP_START, OMAP1510_DSP_SIZE, MT_DEVICE }, { OMAP1510_DSPREG_BASE, OMAP1510_DSPREG_START, OMAP1510_DSPREG_SIZE, MT_DEVICE }, - { OMAP1510_SRAM_BASE, OMAP1510_SRAM_START, OMAP1510_SRAM_SIZE, MT_DEVICE } }; #endif #if defined(CONFIG_ARCH_OMAP16XX) -static struct map_desc omap1610_io_desc[] __initdata = { +static struct map_desc omap16xx_io_desc[] __initdata = { { OMAP16XX_DSP_BASE, OMAP16XX_DSP_START, OMAP16XX_DSP_SIZE, MT_DEVICE }, { OMAP16XX_DSPREG_BASE, OMAP16XX_DSPREG_START, OMAP16XX_DSPREG_SIZE, MT_DEVICE }, - { OMAP16XX_SRAM_BASE, OMAP16XX_SRAM_START, OMAP1610_SRAM_SIZE, MT_DEVICE } -}; - -static struct map_desc omap5912_io_desc[] __initdata = { - { OMAP16XX_DSP_BASE, OMAP16XX_DSP_START, OMAP16XX_DSP_SIZE, MT_DEVICE }, - { OMAP16XX_DSPREG_BASE, OMAP16XX_DSPREG_START, OMAP16XX_DSPREG_SIZE, MT_DEVICE }, -/* - * The OMAP5912 has 250kByte internal SRAM. Because the mapping is baseed on page - * size (4kByte), it seems that the last 2kByte (=0x800) of the 250kByte are not mapped. - * Add additional 2kByte (0x800) so that the last page is mapped and the last 2kByte - * can be used. - */ - { OMAP16XX_SRAM_BASE, OMAP16XX_SRAM_START, OMAP5912_SRAM_SIZE + 0x800, MT_DEVICE } }; #endif @@ -86,14 +72,13 @@ static void __init _omap_map_io(void) } #endif #if defined(CONFIG_ARCH_OMAP16XX) - if (cpu_is_omap1610() || cpu_is_omap1710()) { - iotable_init(omap1610_io_desc, ARRAY_SIZE(omap1610_io_desc)); - } - if (cpu_is_omap5912()) { - iotable_init(omap5912_io_desc, ARRAY_SIZE(omap5912_io_desc)); + if (cpu_is_omap16xx()) { + iotable_init(omap16xx_io_desc, ARRAY_SIZE(omap16xx_io_desc)); } #endif + omap_sram_init(); + /* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort * on a Posted Write in the TIPB Bridge". */ @@ -108,8 +93,9 @@ static void __init _omap_map_io(void) /* * This should only get called from board specific init */ -void omap_map_common_io(void) +void __init omap_map_common_io(void) { if (!initialized) _omap_map_io(); } + diff --git a/arch/arm/mach-omap1/irq.c b/arch/arm/mach-omap1/irq.c index afd5d67e4ae7..192ce6055faa 100644 --- a/arch/arm/mach-omap1/irq.c +++ b/arch/arm/mach-omap1/irq.c @@ -1,5 +1,5 @@ /* - * linux/arch/arm/mach-omap/irq.c + * linux/arch/arm/mach-omap1/irq.c * * Interrupt handler for all OMAP boards * diff --git a/arch/arm/mach-omap1/leds-h2p2-debug.c b/arch/arm/mach-omap1/leds-h2p2-debug.c index ec0d8285f243..be283cda63dd 100644 --- a/arch/arm/mach-omap1/leds-h2p2-debug.c +++ b/arch/arm/mach-omap1/leds-h2p2-debug.c @@ -1,5 +1,5 @@ /* - * linux/arch/arm/mach-omap/leds-h2p2-debug.c + * linux/arch/arm/mach-omap1/leds-h2p2-debug.c * * Copyright 2003 by Texas Instruments Incorporated * @@ -13,6 +13,7 @@ #include <linux/init.h> #include <linux/kernel_stat.h> #include <linux/sched.h> +#include <linux/version.h> #include <asm/io.h> #include <asm/hardware.h> diff --git a/arch/arm/mach-omap1/leds-innovator.c b/arch/arm/mach-omap1/leds-innovator.c index 8043b7d0f66e..c8ffd1ddcded 100644 --- a/arch/arm/mach-omap1/leds-innovator.c +++ b/arch/arm/mach-omap1/leds-innovator.c @@ -1,5 +1,5 @@ /* - * linux/arch/arm/mach-omap/leds-innovator.c + * linux/arch/arm/mach-omap1/leds-innovator.c */ #include <linux/config.h> #include <linux/init.h> diff --git a/arch/arm/mach-omap1/leds-osk.c b/arch/arm/mach-omap1/leds-osk.c index 4a0e8b9d4fc3..2c8bda847c18 100644 --- a/arch/arm/mach-omap1/leds-osk.c +++ b/arch/arm/mach-omap1/leds-osk.c @@ -1,5 +1,5 @@ /* - * linux/arch/arm/mach-omap/leds-osk.c + * linux/arch/arm/mach-omap1/leds-osk.c * * LED driver for OSK, and optionally Mistral QVGA, boards */ @@ -64,7 +64,7 @@ static void tps_work(void *unused) static DECLARE_WORK(work, tps_work, NULL); -#ifdef CONFIG_FB_OMAP +#ifdef CONFIG_OMAP_OSK_MISTRAL /* For now, all system indicators require the Mistral board, since that * LED can be manipulated without a task context. This LED is either red, @@ -127,7 +127,7 @@ void osk_leds_event(led_event_t evt) hw_led_state = 0; break; -#ifdef CONFIG_FB_OMAP +#ifdef CONFIG_OMAP_OSK_MISTRAL case led_timer: hw_led_state ^= TIMER_LED; @@ -144,7 +144,7 @@ void osk_leds_event(led_event_t evt) mistral_setled(); break; -#endif /* CONFIG_FB_OMAP */ +#endif /* CONFIG_OMAP_OSK_MISTRAL */ /* "green" == tps LED1 (leftmost, normally power-good) * works only with DC adapter, not on battery power! diff --git a/arch/arm/mach-omap1/leds.c b/arch/arm/mach-omap1/leds.c index 8ab21fe98e1b..5c6b1bb6e722 100644 --- a/arch/arm/mach-omap1/leds.c +++ b/arch/arm/mach-omap1/leds.c @@ -1,5 +1,5 @@ /* - * linux/arch/arm/mach-omap/leds.c + * linux/arch/arm/mach-omap1/leds.c * * OMAP LEDs dispatcher */ @@ -20,7 +20,9 @@ omap_leds_init(void) if (machine_is_omap_innovator()) leds_event = innovator_leds_event; - else if (machine_is_omap_h2() || machine_is_omap_perseus2()) + else if (machine_is_omap_h2() + || machine_is_omap_h3() + || machine_is_omap_perseus2()) leds_event = h2p2_dbg_leds_event; else if (machine_is_omap_osk()) @@ -30,8 +32,12 @@ omap_leds_init(void) return -1; if (machine_is_omap_h2() + || machine_is_omap_h3() || machine_is_omap_perseus2() - || machine_is_omap_osk()) { +#ifdef CONFIG_OMAP_OSK_MISTRAL + || machine_is_omap_osk() +#endif + ) { /* LED1/LED2 pins can be used as GPIO (as done here), or by * the LPG (works even in deep sleep!), to drive a bicolor diff --git a/arch/arm/mach-omap1/serial.c b/arch/arm/mach-omap1/serial.c index 214e5d17c8b5..e702e0cb899e 100644 --- a/arch/arm/mach-omap1/serial.c +++ b/arch/arm/mach-omap1/serial.c @@ -24,7 +24,11 @@ #include <asm/arch/board.h> #include <asm/arch/mux.h> +#include <asm/arch/gpio.h> #include <asm/arch/fpga.h> +#ifdef CONFIG_PM +#include <asm/arch/pm.h> +#endif static struct clk * uart1_ck = NULL; static struct clk * uart2_ck = NULL; @@ -193,6 +197,86 @@ void __init omap_serial_init(int ports[OMAP_MAX_NR_PORTS]) } } +#ifdef CONFIG_OMAP_SERIAL_WAKE + +static irqreturn_t omap_serial_wake_interrupt(int irq, void *dev_id, + struct pt_regs *regs) +{ + /* Need to do something with serial port right after wake-up? */ + return IRQ_HANDLED; +} + +/* + * Reroutes serial RX lines to GPIO lines for the duration of + * sleep to allow waking up the device from serial port even + * in deep sleep. + */ +void omap_serial_wake_trigger(int enable) +{ + if (!cpu_is_omap16xx()) + return; + + if (uart1_ck != NULL) { + if (enable) + omap_cfg_reg(V14_16XX_GPIO37); + else + omap_cfg_reg(V14_16XX_UART1_RX); + } + if (uart2_ck != NULL) { + if (enable) + omap_cfg_reg(R9_16XX_GPIO18); + else + omap_cfg_reg(R9_16XX_UART2_RX); + } + if (uart3_ck != NULL) { + if (enable) + omap_cfg_reg(L14_16XX_GPIO49); + else + omap_cfg_reg(L14_16XX_UART3_RX); + } +} + +static void __init omap_serial_set_port_wakeup(int gpio_nr) +{ + int ret; + + ret = omap_request_gpio(gpio_nr); + if (ret < 0) { + printk(KERN_ERR "Could not request UART wake GPIO: %i\n", + gpio_nr); + return; + } + omap_set_gpio_direction(gpio_nr, 1); + set_irq_type(OMAP_GPIO_IRQ(gpio_nr), IRQT_RISING); + ret = request_irq(OMAP_GPIO_IRQ(gpio_nr), &omap_serial_wake_interrupt, + 0, "serial wakeup", NULL); + if (ret) { + omap_free_gpio(gpio_nr); + printk(KERN_ERR "No interrupt for UART wake GPIO: %i\n", + gpio_nr); + return; + } + enable_irq_wake(OMAP_GPIO_IRQ(gpio_nr)); +} + +static int __init omap_serial_wakeup_init(void) +{ + if (!cpu_is_omap16xx()) + return 0; + + if (uart1_ck != NULL) + omap_serial_set_port_wakeup(37); + if (uart2_ck != NULL) + omap_serial_set_port_wakeup(18); + if (uart3_ck != NULL) + omap_serial_set_port_wakeup(49); + + return 0; +} +late_initcall(omap_serial_wakeup_init); + +#endif /* CONFIG_OMAP_SERIAL_WAKE */ + static int __init omap_init(void) { return platform_device_register(&serial_device); diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c index d540539c9bbb..191a9b1ee9b7 100644 --- a/arch/arm/mach-omap1/time.c +++ b/arch/arm/mach-omap1/time.c @@ -247,13 +247,6 @@ unsigned long long sched_clock(void) #define OMAP_32K_TIMER_TCR 0x04 #define OMAP_32K_TICKS_PER_HZ (32768 / HZ) -#if (32768 % HZ) != 0 -/* We cannot ignore modulo. - * Potential error can be as high as several percent. - */ -#define OMAP_32K_TICK_MODULO (32768 % HZ) -static unsigned modulo_count = 0; /* Counts 1/HZ units */ -#endif /* * TRM says 1 / HZ = ( TVR + 1) / 32768, so TRV = (32768 / HZ) - 1 @@ -296,13 +289,22 @@ static inline void omap_32k_timer_stop(void) } /* - * Rounds down to nearest usec + * Rounds down to nearest usec. Note that this will overflow for larger values. */ static inline unsigned long omap_32k_ticks_to_usecs(unsigned long ticks_32k) { return (ticks_32k * 5*5*5*5*5*5) >> 9; } +/* + * Rounds down to nearest nsec. + */ +static inline unsigned long long +omap_32k_ticks_to_nsecs(unsigned long ticks_32k) +{ + return (unsigned long long) ticks_32k * 1000 * 5*5*5*5*5*5 >> 9; +} + static unsigned long omap_32k_last_tick = 0; /* @@ -315,6 +317,15 @@ static unsigned long omap_32k_timer_gettimeoffset(void) } /* + * Returns current time from boot in nsecs. It's OK for this to wrap + * around for now, as it's just a relative time stamp. + */ +unsigned long long sched_clock(void) +{ + return omap_32k_ticks_to_nsecs(omap_32k_sync_timer_read()); +} + +/* * Timer interrupt for 32KHz timer. When dynamic tick is enabled, this * function is also called from other interrupts to remove latency * issues with dynamic tick. In the dynamic tick case, we need to lock @@ -330,19 +341,6 @@ static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id, now = omap_32k_sync_timer_read(); while (now - omap_32k_last_tick >= OMAP_32K_TICKS_PER_HZ) { -#ifdef OMAP_32K_TICK_MODULO - /* Modulo addition may put omap_32k_last_tick ahead of now - * and cause unwanted repetition of the while loop. - */ - if (unlikely(now - omap_32k_last_tick == ~0)) - break; - - modulo_count += OMAP_32K_TICK_MODULO; - if (modulo_count > HZ) { - ++omap_32k_last_tick; - modulo_count -= HZ; - } -#endif omap_32k_last_tick += OMAP_32K_TICKS_PER_HZ; timer_tick(regs); } |