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Diffstat (limited to 'arch/arm/mach-davinci/board-da830-evm.c')
-rw-r--r--arch/arm/mach-davinci/board-da830-evm.c466
1 files changed, 441 insertions, 25 deletions
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index bfbb63936f33..31dc9901e556 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -10,51 +10,194 @@
* or implied.
*/
#include <linux/kernel.h>
-#include <linux/module.h>
#include <linux/init.h>
#include <linux/console.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.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 <asm/mach-types.h>
#include <asm/mach/arch.h>
-#include <mach/common.h>
-#include <mach/irqs.h>
#include <mach/cp_intc.h>
+#include <mach/mux.h>
+#include <mach/nand.h>
#include <mach/da8xx.h>
-#include <mach/asp.h>
+#include <mach/usb.h>
#define DA830_EVM_PHY_MASK 0x0
#define DA830_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */
-static struct at24_platform_data da830_evm_i2c_eeprom_info = {
- .byte_len = SZ_256K / 8,
- .page_size = 64,
- .flags = AT24_FLAG_ADDR16,
- .setup = davinci_get_mac_addr,
- .context = (void *)0x7f00,
-};
+#define DA830_EMIF25_ASYNC_DATA_CE3_BASE 0x62000000
+#define DA830_EMIF25_CONTROL_BASE 0x68000000
-static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
- {
- I2C_BOARD_INFO("24c256", 0x50),
- .platform_data = &da830_evm_i2c_eeprom_info,
- },
- {
- I2C_BOARD_INFO("tlv320aic3x", 0x18),
- }
+/*
+ * USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4].
+ */
+#define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
+#define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)
+
+static const short da830_evm_usb11_pins[] = {
+ DA830_GPIO1_15, DA830_GPIO2_4,
+ -1
};
-static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
- .bus_freq = 100, /* kHz */
- .bus_delay = 0, /* usec */
+static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;
+
+static int da830_evm_usb_set_power(unsigned port, int on)
+{
+ gpio_set_value(ON_BD_USB_DRV, on);
+ return 0;
+}
+
+static int da830_evm_usb_get_power(unsigned port)
+{
+ return gpio_get_value(ON_BD_USB_DRV);
+}
+
+static int da830_evm_usb_get_oci(unsigned port)
+{
+ return !gpio_get_value(ON_BD_USB_OVC);
+}
+
+static irqreturn_t da830_evm_usb_ocic_irq(int, void *);
+
+static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
+{
+ int irq = gpio_to_irq(ON_BD_USB_OVC);
+ int error = 0;
+
+ if (handler != NULL) {
+ da830_evm_usb_ocic_handler = handler;
+
+ error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED |
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ "OHCI over-current indicator", NULL);
+ if (error)
+ printk(KERN_ERR "%s: could not request IRQ to watch "
+ "over-current indicator changes\n", __func__);
+ } else
+ free_irq(irq, NULL);
+
+ return error;
+}
+
+static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
+ .set_power = da830_evm_usb_set_power,
+ .get_power = da830_evm_usb_get_power,
+ .get_oci = da830_evm_usb_get_oci,
+ .ocic_notify = da830_evm_usb_ocic_notify,
+
+ /* TPS2065 switch @ 5V */
+ .potpgt = (3 + 1) / 2, /* 3 ms max */
};
+static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
+{
+ da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
+ return IRQ_HANDLED;
+}
+
+static __init void da830_evm_usb_init(void)
+{
+ u32 cfgchip2;
+ int ret;
+
+ /*
+ * Set up USB clock/mode in the CFGCHIP2 register.
+ * FYI: CFGCHIP2 is 0x0000ef00 initially.
+ */
+ cfgchip2 = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));
+
+ /* USB2.0 PHY reference clock is 24 MHz */
+ cfgchip2 &= ~CFGCHIP2_REFFREQ;
+ cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
+
+ /*
+ * Select internal reference clock for USB 2.0 PHY
+ * and use it as a clock source for USB 1.1 PHY
+ * (this is the default setting anyway).
+ */
+ cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
+ cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX;
+
+ /*
+ * We have to override VBUS/ID signals when MUSB is configured into the
+ * host-only mode -- ID pin will float if no cable is connected, so the
+ * controller won't be able to drive VBUS thinking that it's a B-device.
+ * Otherwise, we want to use the OTG mode and enable VBUS comparators.
+ */
+ cfgchip2 &= ~CFGCHIP2_OTGMODE;
+#ifdef CONFIG_USB_MUSB_HOST
+ cfgchip2 |= CFGCHIP2_FORCE_HOST;
+#else
+ cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN;
+#endif
+
+ __raw_writel(cfgchip2, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));
+
+ /* USB_REFCLKIN is not used. */
+ ret = davinci_cfg_reg(DA830_USB0_DRVVBUS);
+ if (ret)
+ pr_warning("%s: USB 2.0 PinMux setup failed: %d\n",
+ __func__, ret);
+ else {
+ /*
+ * TPS2065 switch @ 5V supplies 1 A (sustains 1.5 A),
+ * with the power on to power good time of 3 ms.
+ */
+ ret = da8xx_register_usb20(1000, 3);
+ if (ret)
+ pr_warning("%s: USB 2.0 registration failed: %d\n",
+ __func__, ret);
+ }
+
+ ret = da8xx_pinmux_setup(da830_evm_usb11_pins);
+ if (ret) {
+ pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
+ __func__, ret);
+ return;
+ }
+
+ ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
+ if (ret) {
+ printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
+ "power control: %d\n", __func__, ret);
+ return;
+ }
+ gpio_direction_output(ON_BD_USB_DRV, 0);
+
+ ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
+ if (ret) {
+ printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
+ "over-current indicator: %d\n", __func__, ret);
+ return;
+ }
+ gpio_direction_input(ON_BD_USB_OVC);
+
+ ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
+ if (ret)
+ pr_warning("%s: USB 1.1 registration failed: %d\n",
+ __func__, ret);
+}
+
static struct davinci_uart_config da830_evm_uart_config __initdata = {
.enabled_uarts = 0x7,
};
+static const short da830_evm_mcasp1_pins[] = {
+ DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
+ DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
+ DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
+ DA830_AXR1_11,
+ -1
+};
+
static u8 da830_iis_serializer_direction[] = {
RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE,
@@ -74,6 +217,271 @@ static struct snd_platform_data da830_evm_snd_data = {
.rxnumevt = 1,
};
+/*
+ * GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.
+ */
+static const short da830_evm_mmc_sd_pins[] = {
+ DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
+ DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
+ DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
+ DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2,
+ -1
+};
+
+#define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)
+
+static int da830_evm_mmc_get_ro(int index)
+{
+ return gpio_get_value(DA830_MMCSD_WP_PIN);
+}
+
+static struct davinci_mmc_config da830_evm_mmc_config = {
+ .get_ro = da830_evm_mmc_get_ro,
+ .wires = 4,
+ .max_freq = 50000000,
+ .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
+ .version = MMC_CTLR_VERSION_2,
+};
+
+static inline void da830_evm_init_mmc(void)
+{
+ int ret;
+
+ ret = da8xx_pinmux_setup(da830_evm_mmc_sd_pins);
+ if (ret) {
+ pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",
+ ret);
+ return;
+ }
+
+ ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");
+ if (ret) {
+ pr_warning("da830_evm_init: can not open GPIO %d\n",
+ DA830_MMCSD_WP_PIN);
+ return;
+ }
+ gpio_direction_input(DA830_MMCSD_WP_PIN);
+
+ ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
+ if (ret) {
+ pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",
+ ret);
+ gpio_free(DA830_MMCSD_WP_PIN);
+ }
+}
+
+/*
+ * UI board NAND/NOR flashes only use 8-bit data bus.
+ */
+static const short da830_evm_emif25_pins[] = {
+ DA830_EMA_D_0, DA830_EMA_D_1, DA830_EMA_D_2, DA830_EMA_D_3,
+ DA830_EMA_D_4, DA830_EMA_D_5, DA830_EMA_D_6, DA830_EMA_D_7,
+ DA830_EMA_A_0, DA830_EMA_A_1, DA830_EMA_A_2, DA830_EMA_A_3,
+ DA830_EMA_A_4, DA830_EMA_A_5, DA830_EMA_A_6, DA830_EMA_A_7,
+ DA830_EMA_A_8, DA830_EMA_A_9, DA830_EMA_A_10, DA830_EMA_A_11,
+ DA830_EMA_A_12, DA830_EMA_BA_0, DA830_EMA_BA_1, DA830_NEMA_WE,
+ DA830_NEMA_CS_2, DA830_NEMA_CS_3, DA830_NEMA_OE, DA830_EMA_WAIT_0,
+ -1
+};
+
+#if defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE)
+#define HAS_MMC 1
+#else
+#define HAS_MMC 0
+#endif
+
+#ifdef CONFIG_DA830_UI_NAND
+static struct mtd_partition da830_evm_nand_partitions[] = {
+ /* bootloader (U-Boot, etc) in first sector */
+ [0] = {
+ .name = "bootloader",
+ .offset = 0,
+ .size = SZ_128K,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ /* bootloader params in the next sector */
+ [1] = {
+ .name = "params",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_128K,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ /* kernel */
+ [2] = {
+ .name = "kernel",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_2M,
+ .mask_flags = 0,
+ },
+ /* file system */
+ [3] = {
+ .name = "filesystem",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ .mask_flags = 0,
+ }
+};
+
+/* flash bbt decriptors */
+static uint8_t da830_evm_nand_bbt_pattern[] = { 'B', 'b', 't', '0' };
+static uint8_t da830_evm_nand_mirror_pattern[] = { '1', 't', 'b', 'B' };
+
+static struct nand_bbt_descr da830_evm_nand_bbt_main_descr = {
+ .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
+ NAND_BBT_WRITE | NAND_BBT_2BIT |
+ NAND_BBT_VERSION | NAND_BBT_PERCHIP,
+ .offs = 2,
+ .len = 4,
+ .veroffs = 16,
+ .maxblocks = 4,
+ .pattern = da830_evm_nand_bbt_pattern
+};
+
+static struct nand_bbt_descr da830_evm_nand_bbt_mirror_descr = {
+ .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
+ NAND_BBT_WRITE | NAND_BBT_2BIT |
+ NAND_BBT_VERSION | NAND_BBT_PERCHIP,
+ .offs = 2,
+ .len = 4,
+ .veroffs = 16,
+ .maxblocks = 4,
+ .pattern = da830_evm_nand_mirror_pattern
+};
+
+static struct davinci_nand_pdata da830_evm_nand_pdata = {
+ .parts = da830_evm_nand_partitions,
+ .nr_parts = ARRAY_SIZE(da830_evm_nand_partitions),
+ .ecc_mode = NAND_ECC_HW,
+ .ecc_bits = 4,
+ .options = NAND_USE_FLASH_BBT,
+ .bbt_td = &da830_evm_nand_bbt_main_descr,
+ .bbt_md = &da830_evm_nand_bbt_mirror_descr,
+};
+
+static struct resource da830_evm_nand_resources[] = {
+ [0] = { /* First memory resource is NAND I/O window */
+ .start = DA830_EMIF25_ASYNC_DATA_CE3_BASE,
+ .end = DA830_EMIF25_ASYNC_DATA_CE3_BASE + PAGE_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = { /* Second memory resource is AEMIF control registers */
+ .start = DA830_EMIF25_CONTROL_BASE,
+ .end = DA830_EMIF25_CONTROL_BASE + SZ_32K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device da830_evm_nand_device = {
+ .name = "davinci_nand",
+ .id = 1,
+ .dev = {
+ .platform_data = &da830_evm_nand_pdata,
+ },
+ .num_resources = ARRAY_SIZE(da830_evm_nand_resources),
+ .resource = da830_evm_nand_resources,
+};
+
+static inline void da830_evm_init_nand(int mux_mode)
+{
+ int ret;
+
+ if (HAS_MMC) {
+ pr_warning("WARNING: both MMC/SD and NAND are "
+ "enabled, but they share AEMIF pins.\n"
+ "\tDisable MMC/SD for NAND support.\n");
+ return;
+ }
+
+ ret = da8xx_pinmux_setup(da830_evm_emif25_pins);
+ if (ret)
+ pr_warning("da830_evm_init: emif25 mux setup failed: %d\n",
+ ret);
+
+ ret = platform_device_register(&da830_evm_nand_device);
+ if (ret)
+ pr_warning("da830_evm_init: NAND device not registered.\n");
+
+ gpio_direction_output(mux_mode, 1);
+}
+#else
+static inline void da830_evm_init_nand(int mux_mode) { }
+#endif
+
+#ifdef CONFIG_DA830_UI_LCD
+static inline void da830_evm_init_lcdc(int mux_mode)
+{
+ int ret;
+
+ ret = da8xx_pinmux_setup(da830_lcdcntl_pins);
+ if (ret)
+ pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n",
+ ret);
+
+ ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
+ if (ret)
+ pr_warning("da830_evm_init: lcd setup failed: %d\n", ret);
+
+ gpio_direction_output(mux_mode, 0);
+}
+#else
+static inline void da830_evm_init_lcdc(int mux_mode) { }
+#endif
+
+static struct at24_platform_data da830_evm_i2c_eeprom_info = {
+ .byte_len = SZ_256K / 8,
+ .page_size = 64,
+ .flags = AT24_FLAG_ADDR16,
+ .setup = davinci_get_mac_addr,
+ .context = (void *)0x7f00,
+};
+
+static int __init da830_evm_ui_expander_setup(struct i2c_client *client,
+ int gpio, unsigned ngpio, void *context)
+{
+ gpio_request(gpio + 6, "UI MUX_MODE");
+
+ /* Drive mux mode low to match the default without UI card */
+ gpio_direction_output(gpio + 6, 0);
+
+ da830_evm_init_lcdc(gpio + 6);
+
+ da830_evm_init_nand(gpio + 6);
+
+ return 0;
+}
+
+static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
+ unsigned ngpio, void *context)
+{
+ gpio_free(gpio + 6);
+ return 0;
+}
+
+static struct pcf857x_platform_data __initdata da830_evm_ui_expander_info = {
+ .gpio_base = DAVINCI_N_GPIO,
+ .setup = da830_evm_ui_expander_setup,
+ .teardown = da830_evm_ui_expander_teardown,
+};
+
+static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
+ {
+ I2C_BOARD_INFO("24c256", 0x50),
+ .platform_data = &da830_evm_i2c_eeprom_info,
+ },
+ {
+ I2C_BOARD_INFO("tlv320aic3x", 0x18),
+ },
+ {
+ I2C_BOARD_INFO("pcf8574", 0x3f),
+ .platform_data = &da830_evm_ui_expander_info,
+ },
+};
+
+static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
+ .bus_freq = 100, /* kHz */
+ .bus_delay = 0, /* usec */
+};
+
static __init void da830_evm_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
@@ -94,6 +502,8 @@ static __init void da830_evm_init(void)
pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
ret);
+ da830_evm_usb_init();
+
soc_info->emac_pdata->phy_mask = DA830_EVM_PHY_MASK;
soc_info->emac_pdata->mdio_max_freq = DA830_EVM_MDIO_FREQUENCY;
soc_info->emac_pdata->rmii_en = 1;
@@ -117,12 +527,18 @@ static __init void da830_evm_init(void)
i2c_register_board_info(1, da830_evm_i2c_devices,
ARRAY_SIZE(da830_evm_i2c_devices));
- ret = da8xx_pinmux_setup(da830_mcasp1_pins);
+ ret = da8xx_pinmux_setup(da830_evm_mcasp1_pins);
if (ret)
pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n",
ret);
- da8xx_init_mcasp(1, &da830_evm_snd_data);
+ da8xx_register_mcasp(1, &da830_evm_snd_data);
+
+ da830_evm_init_mmc();
+
+ ret = da8xx_register_rtc();
+ if (ret)
+ pr_warning("da830_evm_init: rtc setup failed: %d\n", ret);
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
@@ -146,7 +562,7 @@ static void __init da830_evm_map_io(void)
da830_init();
}
-MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP L137 EVM")
+MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137 EVM")
.phys_io = IO_PHYS,
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
.boot_params = (DA8XX_DDR_BASE + 0x100),
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-16 07:56:15 +0300