|
@@ -13,6 +13,13 @@
|
|
|
#include <linux/init.h>
|
|
|
#include <linux/dma-mapping.h>
|
|
|
#include <linux/platform_device.h>
|
|
|
+#include <linux/gpio.h>
|
|
|
+#include <linux/leds.h>
|
|
|
+
|
|
|
+#include <linux/i2c.h>
|
|
|
+#include <linux/i2c/pcf857x.h>
|
|
|
+#include <linux/i2c/at24.h>
|
|
|
+
|
|
|
#include <linux/mtd/mtd.h>
|
|
|
#include <linux/mtd/partitions.h>
|
|
|
#include <linux/mtd/physmap.h>
|
|
@@ -20,13 +27,14 @@
|
|
|
|
|
|
#include <asm/setup.h>
|
|
|
#include <asm/mach-types.h>
|
|
|
-#include <mach/hardware.h>
|
|
|
|
|
|
#include <asm/mach/arch.h>
|
|
|
#include <asm/mach/map.h>
|
|
|
#include <asm/mach/flash.h>
|
|
|
|
|
|
+#include <mach/hardware.h>
|
|
|
#include <mach/common.h>
|
|
|
+#include <mach/i2c.h>
|
|
|
|
|
|
/* other misc. init functions */
|
|
|
void __init davinci_psc_init(void);
|
|
@@ -34,10 +42,10 @@ void __init davinci_irq_init(void);
|
|
|
void __init davinci_map_common_io(void);
|
|
|
void __init davinci_init_common_hw(void);
|
|
|
|
|
|
-/* NOR Flash base address set to CS0 by default */
|
|
|
-#define NOR_FLASH_PHYS 0x02000000
|
|
|
+#if defined(CONFIG_MTD_PHYSMAP) || \
|
|
|
+ defined(CONFIG_MTD_PHYSMAP_MODULE)
|
|
|
|
|
|
-static struct mtd_partition davinci_evm_partitions[] = {
|
|
|
+static struct mtd_partition davinci_evm_norflash_partitions[] = {
|
|
|
/* bootloader (U-Boot, etc) in first 4 sectors */
|
|
|
{
|
|
|
.name = "bootloader",
|
|
@@ -68,32 +76,323 @@ static struct mtd_partition davinci_evm_partitions[] = {
|
|
|
}
|
|
|
};
|
|
|
|
|
|
-static struct physmap_flash_data davinci_evm_flash_data = {
|
|
|
+static struct physmap_flash_data davinci_evm_norflash_data = {
|
|
|
.width = 2,
|
|
|
- .parts = davinci_evm_partitions,
|
|
|
- .nr_parts = ARRAY_SIZE(davinci_evm_partitions),
|
|
|
+ .parts = davinci_evm_norflash_partitions,
|
|
|
+ .nr_parts = ARRAY_SIZE(davinci_evm_norflash_partitions),
|
|
|
};
|
|
|
|
|
|
/* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
|
|
|
* limits addresses to 16M, so using addresses past 16M will wrap */
|
|
|
-static struct resource davinci_evm_flash_resource = {
|
|
|
- .start = NOR_FLASH_PHYS,
|
|
|
- .end = NOR_FLASH_PHYS + SZ_16M - 1,
|
|
|
+static struct resource davinci_evm_norflash_resource = {
|
|
|
+ .start = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
|
|
|
+ .end = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
|
|
|
.flags = IORESOURCE_MEM,
|
|
|
};
|
|
|
|
|
|
-static struct platform_device davinci_evm_flash_device = {
|
|
|
+static struct platform_device davinci_evm_norflash_device = {
|
|
|
.name = "physmap-flash",
|
|
|
.id = 0,
|
|
|
.dev = {
|
|
|
- .platform_data = &davinci_evm_flash_data,
|
|
|
+ .platform_data = &davinci_evm_norflash_data,
|
|
|
},
|
|
|
.num_resources = 1,
|
|
|
- .resource = &davinci_evm_flash_resource,
|
|
|
+ .resource = &davinci_evm_norflash_resource,
|
|
|
+};
|
|
|
+
|
|
|
+#endif
|
|
|
+
|
|
|
+#if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
|
|
|
+ defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
|
|
|
+
|
|
|
+static struct resource ide_resources[] = {
|
|
|
+ {
|
|
|
+ .start = DAVINCI_CFC_ATA_BASE,
|
|
|
+ .end = DAVINCI_CFC_ATA_BASE + 0x7ff,
|
|
|
+ .flags = IORESOURCE_MEM,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ .start = IRQ_IDE,
|
|
|
+ .end = IRQ_IDE,
|
|
|
+ .flags = IORESOURCE_IRQ,
|
|
|
+ },
|
|
|
+};
|
|
|
+
|
|
|
+static u64 ide_dma_mask = DMA_32BIT_MASK;
|
|
|
+
|
|
|
+static struct platform_device ide_dev = {
|
|
|
+ .name = "palm_bk3710",
|
|
|
+ .id = -1,
|
|
|
+ .resource = ide_resources,
|
|
|
+ .num_resources = ARRAY_SIZE(ide_resources),
|
|
|
+ .dev = {
|
|
|
+ .dma_mask = &ide_dma_mask,
|
|
|
+ .coherent_dma_mask = DMA_32BIT_MASK,
|
|
|
+ },
|
|
|
+};
|
|
|
+
|
|
|
+#endif
|
|
|
+
|
|
|
+/*----------------------------------------------------------------------*/
|
|
|
+
|
|
|
+/*
|
|
|
+ * I2C GPIO expanders
|
|
|
+ */
|
|
|
+
|
|
|
+#define PCF_Uxx_BASE(x) (DAVINCI_N_GPIO + ((x) * 8))
|
|
|
+
|
|
|
+
|
|
|
+/* U2 -- LEDs */
|
|
|
+
|
|
|
+static struct gpio_led evm_leds[] = {
|
|
|
+ { .name = "DS8", .active_low = 1,
|
|
|
+ .default_trigger = "heartbeat", },
|
|
|
+ { .name = "DS7", .active_low = 1, },
|
|
|
+ { .name = "DS6", .active_low = 1, },
|
|
|
+ { .name = "DS5", .active_low = 1, },
|
|
|
+ { .name = "DS4", .active_low = 1, },
|
|
|
+ { .name = "DS3", .active_low = 1, },
|
|
|
+ { .name = "DS2", .active_low = 1,
|
|
|
+ .default_trigger = "mmc0", },
|
|
|
+ { .name = "DS1", .active_low = 1,
|
|
|
+ .default_trigger = "ide-disk", },
|
|
|
+};
|
|
|
+
|
|
|
+static const struct gpio_led_platform_data evm_led_data = {
|
|
|
+ .num_leds = ARRAY_SIZE(evm_leds),
|
|
|
+ .leds = evm_leds,
|
|
|
+};
|
|
|
+
|
|
|
+static struct platform_device *evm_led_dev;
|
|
|
+
|
|
|
+static int
|
|
|
+evm_led_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
|
|
|
+{
|
|
|
+ struct gpio_led *leds = evm_leds;
|
|
|
+ int status;
|
|
|
+
|
|
|
+ while (ngpio--) {
|
|
|
+ leds->gpio = gpio++;
|
|
|
+ leds++;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* what an extremely annoying way to be forced to handle
|
|
|
+ * device unregistration ...
|
|
|
+ */
|
|
|
+ evm_led_dev = platform_device_alloc("leds-gpio", 0);
|
|
|
+ platform_device_add_data(evm_led_dev,
|
|
|
+ &evm_led_data, sizeof evm_led_data);
|
|
|
+
|
|
|
+ evm_led_dev->dev.parent = &client->dev;
|
|
|
+ status = platform_device_add(evm_led_dev);
|
|
|
+ if (status < 0) {
|
|
|
+ platform_device_put(evm_led_dev);
|
|
|
+ evm_led_dev = NULL;
|
|
|
+ }
|
|
|
+ return status;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+evm_led_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
|
|
|
+{
|
|
|
+ if (evm_led_dev) {
|
|
|
+ platform_device_unregister(evm_led_dev);
|
|
|
+ evm_led_dev = NULL;
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static struct pcf857x_platform_data pcf_data_u2 = {
|
|
|
+ .gpio_base = PCF_Uxx_BASE(0),
|
|
|
+ .setup = evm_led_setup,
|
|
|
+ .teardown = evm_led_teardown,
|
|
|
+};
|
|
|
+
|
|
|
+
|
|
|
+/* U18 - A/V clock generator and user switch */
|
|
|
+
|
|
|
+static int sw_gpio;
|
|
|
+
|
|
|
+static ssize_t
|
|
|
+sw_show(struct device *d, struct device_attribute *a, char *buf)
|
|
|
+{
|
|
|
+ char *s = gpio_get_value_cansleep(sw_gpio) ? "on\n" : "off\n";
|
|
|
+
|
|
|
+ strcpy(buf, s);
|
|
|
+ return strlen(s);
|
|
|
+}
|
|
|
+
|
|
|
+static DEVICE_ATTR(user_sw, S_IRUGO, sw_show, NULL);
|
|
|
+
|
|
|
+static int
|
|
|
+evm_u18_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
|
|
|
+{
|
|
|
+ int status;
|
|
|
+
|
|
|
+ /* export dip switch option */
|
|
|
+ sw_gpio = gpio + 7;
|
|
|
+ status = gpio_request(sw_gpio, "user_sw");
|
|
|
+ if (status == 0)
|
|
|
+ status = gpio_direction_input(sw_gpio);
|
|
|
+ if (status == 0)
|
|
|
+ status = device_create_file(&client->dev, &dev_attr_user_sw);
|
|
|
+ else
|
|
|
+ gpio_free(sw_gpio);
|
|
|
+ if (status != 0)
|
|
|
+ sw_gpio = -EINVAL;
|
|
|
+
|
|
|
+ /* audio PLL: 48 kHz (vs 44.1 or 32), single rate (vs double) */
|
|
|
+ gpio_request(gpio + 3, "pll_fs2");
|
|
|
+ gpio_direction_output(gpio + 3, 0);
|
|
|
+
|
|
|
+ gpio_request(gpio + 2, "pll_fs1");
|
|
|
+ gpio_direction_output(gpio + 2, 0);
|
|
|
+
|
|
|
+ gpio_request(gpio + 1, "pll_sr");
|
|
|
+ gpio_direction_output(gpio + 1, 0);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+evm_u18_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
|
|
|
+{
|
|
|
+ gpio_free(gpio + 1);
|
|
|
+ gpio_free(gpio + 2);
|
|
|
+ gpio_free(gpio + 3);
|
|
|
+
|
|
|
+ if (sw_gpio > 0) {
|
|
|
+ device_remove_file(&client->dev, &dev_attr_user_sw);
|
|
|
+ gpio_free(sw_gpio);
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static struct pcf857x_platform_data pcf_data_u18 = {
|
|
|
+ .gpio_base = PCF_Uxx_BASE(1),
|
|
|
+ .n_latch = (1 << 3) | (1 << 2) | (1 << 1),
|
|
|
+ .setup = evm_u18_setup,
|
|
|
+ .teardown = evm_u18_teardown,
|
|
|
};
|
|
|
|
|
|
+
|
|
|
+/* U35 - various I/O signals used to manage USB, CF, ATA, etc */
|
|
|
+
|
|
|
+static int
|
|
|
+evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
|
|
|
+{
|
|
|
+ /* p0 = nDRV_VBUS (initial: don't supply it) */
|
|
|
+ gpio_request(gpio + 0, "nDRV_VBUS");
|
|
|
+ gpio_direction_output(gpio + 0, 1);
|
|
|
+
|
|
|
+ /* p1 = VDDIMX_EN */
|
|
|
+ gpio_request(gpio + 1, "VDDIMX_EN");
|
|
|
+ gpio_direction_output(gpio + 1, 1);
|
|
|
+
|
|
|
+ /* p2 = VLYNQ_EN */
|
|
|
+ gpio_request(gpio + 2, "VLYNQ_EN");
|
|
|
+ gpio_direction_output(gpio + 2, 1);
|
|
|
+
|
|
|
+ /* p3 = n3V3_CF_RESET (initial: stay in reset) */
|
|
|
+ gpio_request(gpio + 3, "nCF_RESET");
|
|
|
+ gpio_direction_output(gpio + 3, 0);
|
|
|
+
|
|
|
+ /* (p4 unused) */
|
|
|
+
|
|
|
+ /* p5 = 1V8_WLAN_RESET (initial: stay in reset) */
|
|
|
+ gpio_request(gpio + 5, "WLAN_RESET");
|
|
|
+ gpio_direction_output(gpio + 5, 1);
|
|
|
+
|
|
|
+ /* p6 = nATA_SEL (initial: select) */
|
|
|
+ gpio_request(gpio + 6, "nATA_SEL");
|
|
|
+ gpio_direction_output(gpio + 6, 0);
|
|
|
+
|
|
|
+ /* p7 = nCF_SEL (initial: deselect) */
|
|
|
+ gpio_request(gpio + 7, "nCF_SEL");
|
|
|
+ gpio_direction_output(gpio + 7, 1);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+evm_u35_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
|
|
|
+{
|
|
|
+ gpio_free(gpio + 7);
|
|
|
+ gpio_free(gpio + 6);
|
|
|
+ gpio_free(gpio + 5);
|
|
|
+ gpio_free(gpio + 3);
|
|
|
+ gpio_free(gpio + 2);
|
|
|
+ gpio_free(gpio + 1);
|
|
|
+ gpio_free(gpio + 0);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static struct pcf857x_platform_data pcf_data_u35 = {
|
|
|
+ .gpio_base = PCF_Uxx_BASE(2),
|
|
|
+ .setup = evm_u35_setup,
|
|
|
+ .teardown = evm_u35_teardown,
|
|
|
+};
|
|
|
+
|
|
|
+/*----------------------------------------------------------------------*/
|
|
|
+
|
|
|
+/* Most of this EEPROM is unused, but U-Boot uses some data:
|
|
|
+ * - 0x7f00, 6 bytes Ethernet Address
|
|
|
+ * - 0x0039, 1 byte NTSC vs PAL (bit 0x80 == PAL)
|
|
|
+ * - ... newer boards may have more
|
|
|
+ */
|
|
|
+static struct at24_platform_data eeprom_info = {
|
|
|
+ .byte_len = (256*1024) / 8,
|
|
|
+ .page_size = 64,
|
|
|
+ .flags = AT24_FLAG_ADDR16,
|
|
|
+};
|
|
|
+
|
|
|
+static struct i2c_board_info __initdata i2c_info[] = {
|
|
|
+ {
|
|
|
+ I2C_BOARD_INFO("pcf8574", 0x38),
|
|
|
+ .platform_data = &pcf_data_u2,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ I2C_BOARD_INFO("pcf8574", 0x39),
|
|
|
+ .platform_data = &pcf_data_u18,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ I2C_BOARD_INFO("pcf8574", 0x3a),
|
|
|
+ .platform_data = &pcf_data_u35,
|
|
|
+ },
|
|
|
+ {
|
|
|
+ I2C_BOARD_INFO("24c256", 0x50),
|
|
|
+ .platform_data = &eeprom_info,
|
|
|
+ },
|
|
|
+ /* ALSO:
|
|
|
+ * - tvl320aic33 audio codec (0x1b)
|
|
|
+ * - msp430 microcontroller (0x23)
|
|
|
+ * - tvp5146 video decoder (0x5d)
|
|
|
+ */
|
|
|
+};
|
|
|
+
|
|
|
+/* The msp430 uses a slow bitbanged I2C implementation (ergo 20 KHz),
|
|
|
+ * which requires 100 usec of idle bus after i2c writes sent to it.
|
|
|
+ */
|
|
|
+static struct davinci_i2c_platform_data i2c_pdata = {
|
|
|
+ .bus_freq = 20 /* kHz */,
|
|
|
+ .bus_delay = 100 /* usec */,
|
|
|
+};
|
|
|
+
|
|
|
+static void __init evm_init_i2c(void)
|
|
|
+{
|
|
|
+ davinci_init_i2c(&i2c_pdata);
|
|
|
+ i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
|
|
|
+}
|
|
|
+
|
|
|
static struct platform_device *davinci_evm_devices[] __initdata = {
|
|
|
- &davinci_evm_flash_device,
|
|
|
+#if defined(CONFIG_MTD_PHYSMAP) || \
|
|
|
+ defined(CONFIG_MTD_PHYSMAP_MODULE)
|
|
|
+ &davinci_evm_norflash_device,
|
|
|
+#endif
|
|
|
+#if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
|
|
|
+ defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
|
|
|
+ &ide_dev,
|
|
|
+#endif
|
|
|
};
|
|
|
|
|
|
static void __init
|
|
@@ -106,13 +405,21 @@ static __init void davinci_evm_init(void)
|
|
|
{
|
|
|
davinci_psc_init();
|
|
|
|
|
|
-#if defined(CONFIG_BLK_DEV_DAVINCI) || defined(CONFIG_BLK_DEV_DAVINCI_MODULE)
|
|
|
+#if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
|
|
|
+ defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
|
|
|
+#if defined(CONFIG_MTD_PHYSMAP) || \
|
|
|
+ defined(CONFIG_MTD_PHYSMAP_MODULE)
|
|
|
printk(KERN_WARNING "WARNING: both IDE and NOR flash are enabled, "
|
|
|
"but share pins.\n\t Disable IDE for NOR support.\n");
|
|
|
+#endif
|
|
|
#endif
|
|
|
|
|
|
platform_add_devices(davinci_evm_devices,
|
|
|
ARRAY_SIZE(davinci_evm_devices));
|
|
|
+ evm_init_i2c();
|
|
|
+
|
|
|
+ /* irlml6401 sustains over 3A, switches 5V in under 8 msec */
|
|
|
+ setup_usb(500, 8);
|
|
|
}
|
|
|
|
|
|
static __init void davinci_evm_irq_init(void)
|
|
@@ -124,7 +431,7 @@ static __init void davinci_evm_irq_init(void)
|
|
|
MACHINE_START(DAVINCI_EVM, "DaVinci EVM")
|
|
|
/* Maintainer: MontaVista Software <source@mvista.com> */
|
|
|
.phys_io = IO_PHYS,
|
|
|
- .io_pg_offst = (io_p2v(IO_PHYS) >> 18) & 0xfffc,
|
|
|
+ .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
|
|
|
.boot_params = (DAVINCI_DDR_BASE + 0x100),
|
|
|
.map_io = davinci_evm_map_io,
|
|
|
.init_irq = davinci_evm_irq_init,
|