[ARM] 2890/1: OMAP 1/4: Update omap1 specific files, take 2
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>
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index 6844e53..21103df 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 @@
.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 @@
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 @@
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 @@
{ 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);
}