[ARM] 2890/1: OMAP 1/4: Update omap1 specific files, take 2
authorTony Lindgren <tony@atomide.com>
Thu, 8 Sep 2005 22:07:38 +0000 (23:07 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Thu, 8 Sep 2005 22:07:38 +0000 (23:07 +0100)
Patch from Tony Lindgren

This patch syncs the mainline kernel with linux-omap tree.
The highlights of the patch are:
- Convert more drivers to register resources in board-*.c to take
  advantage of the driver model by David Brownell and Ladislav Michl
- Use set_irq_type() for GPIO interrupts instead of
  omap_set_gpio_edge_ctrl() by David Brownell
- Add minimal support for handling optional add-on boards, such as
  OSK Mistral board with LCD and keypad, by David Brownell
- Minimal support for loading functions to SRAM by Tony Lindgren
- Wake up from serial port by muxing RX lines temporarily into GPIO
  interrupts by Tony Lindgren
- 32KHz sched_clock by Tony Lindgren and Juha Yrjola

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
20 files changed:
arch/arm/mach-omap1/Kconfig
arch/arm/mach-omap1/Makefile
arch/arm/mach-omap1/board-generic.c
arch/arm/mach-omap1/board-h2.c
arch/arm/mach-omap1/board-h3.c
arch/arm/mach-omap1/board-innovator.c
arch/arm/mach-omap1/board-netstar.c
arch/arm/mach-omap1/board-osk.c
arch/arm/mach-omap1/board-perseus2.c
arch/arm/mach-omap1/board-voiceblue.c
arch/arm/mach-omap1/devices.c [new file with mode: 0644]
arch/arm/mach-omap1/fpga.c
arch/arm/mach-omap1/io.c
arch/arm/mach-omap1/irq.c
arch/arm/mach-omap1/leds-h2p2-debug.c
arch/arm/mach-omap1/leds-innovator.c
arch/arm/mach-omap1/leds-osk.c
arch/arm/mach-omap1/leds.c
arch/arm/mach-omap1/serial.c
arch/arm/mach-omap1/time.c

index 7408ac94f771663005b2a52c609aea5c5d7afede..27fc2e8e5fca6d07cfa6659bc9562279de7084ac 100644 (file)
@@ -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
index d386fd913f0c617a890cf88838b739f9c1f53430..181a93deaaee4fa9cca5cbd5fbbca498e0930f3f 100644 (file)
@@ -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
index 122796ebe8f5a0b8425748464b756cc83813ef71..c209c7172a9aedf295c725e5ecf79bbb0b8ea02f 100644 (file)
@@ -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")
index f4983ee95ab4e29dbc112c97f7414b76b5e39293..d46a70063b0c61821088ae2c8f483c6a9356454f 100644 (file)
@@ -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);
index 7cd419d61b400889c56e39feb64572f888205b6b..2798613696fa7e0781609bb61132858d25089e27 100644 (file)
@@ -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)
index 91de60a91ef86a04ae32e3d47a675c32752f33be..df0312b596e484a6e79cf5356c767020e8d55c54 100644 (file)
@@ -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)
index 6750b2014092d8ced13f0f28356d2e2ad31a49a8..d904e643f5ec2c30fabf5d8438f5e40cdec82ad1 100644 (file)
@@ -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));
 
index 6844e536c698da5820a3b5f05d8ae5e085f67402..21103df50415a7007428f04224b54c8c2127b023 100644 (file)
 #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>
 #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);
 }
 
index 213317392d9b1c4066fca07e8cb7bfd1714d9ea9..107c68c8ab54b796fe7f5271adb11a40c52de760 100644 (file)
@@ -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,
 };
 
index e422819889904124bf56e84fd577a90ba5c9bca9..209d79ef1d5f0c89fee06e368a4e157a3ded3548 100644 (file)
 #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 (file)
index 0000000..e8b3981
--- /dev/null
@@ -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);
+
index c12a7833562570a4e88497c85b5381f3dd0ad080..aca2a120813ae9f95456749a36939d447019a292 100644 (file)
@@ -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);
 }
 
index 207df0fe934dacbc3c65a9d6fe8e8a3932837c54..eb8261d7dead9b0eb99ae98887f6a540c79450f8 100644 (file)
@@ -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();
 }
+
index afd5d67e4ae73625e25a88bcf93ef79b34323602..192ce6055faabb13f31c6e49c6c4b3b05b3dda9e 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * linux/arch/arm/mach-omap/irq.c
+ * linux/arch/arm/mach-omap1/irq.c
  *
  * Interrupt handler for all OMAP boards
  *
index ec0d8285f243dcaf5885130c10cac1108b2ac448..be283cda63dda9f5817c0e9befce16d7e135974c 100644 (file)
@@ -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>
index 8043b7d0f66e7008afc755051a959cc80275744d..c8ffd1ddcdedff180bfc682560419236a16568bf 100644 (file)
@@ -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>
index 4a0e8b9d4fc37d5748e067c01ff0b84a59d1e1d2..2c8bda847c186e3a47ecf8518000bc1d8406dd91 100644 (file)
@@ -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!
index 8ab21fe98e1bc388c0e3a40a4b83bb919a88c622..5c6b1bb6e722deda5bf715e5435498b2846c7228 100644 (file)
@@ -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
index 214e5d17c8b56eed98458405885ccaf573c7c318..e702e0cb899e251c40f77de2eeef64f1de1d6ced 100644 (file)
 
 #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);
index d540539c9bbb7e23fd27e3d4272a481ce21f136a..191a9b1ee9b7168f1ef3b561b08f732e55b4c2bf 100644 (file)
@@ -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;
 
 /*
@@ -314,6 +316,15 @@ static unsigned long omap_32k_timer_gettimeoffset(void)
        return omap_32k_ticks_to_usecs(now - omap_32k_last_tick);
 }
 
+/*
+ * 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
@@ -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);
        }