* MA 02111-1307 USA
*/
#include <common.h>
+#ifdef CONFIG_STATUS_LED
+#include <status_led.h>
+#endif
#include <twl4030.h>
#include <asm/io.h>
+#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/gpio.h>
#include <asm/mach-types.h>
+#ifdef CONFIG_USB_EHCI
+#include <usb.h>
+#include <asm/arch/clocks.h>
+#include <asm/arch/clocks_omap3.h>
+#include <asm/arch/ehci_omap3.h>
+/* from drivers/usb/host/ehci-core.h */
+extern struct ehci_hccr *hccr;
+extern volatile struct ehci_hcor *hcor;
+#endif
#include "beagle.h"
-static int beagle_revision_c;
+#define pr_debug(fmt, args...) debug(fmt, ##args)
+
+#define TWL4030_I2C_BUS 0
+#define EXPANSION_EEPROM_I2C_BUS 1
+#define EXPANSION_EEPROM_I2C_ADDRESS 0x50
+
+#define TINCANTOOLS_ZIPPY 0x01000100
+#define TINCANTOOLS_ZIPPY2 0x02000100
+#define TINCANTOOLS_TRAINER 0x04000100
+#define TINCANTOOLS_SHOWDOG 0x03000100
+#define KBADC_BEAGLEFPGA 0x01000600
+#define LW_BEAGLETOUCH 0x01000700
+#define BRAINMUX_LCDOG 0x01000800
+#define BRAINMUX_LCDOGTOUCH 0x02000800
+#define BBTOYS_WIFI 0x01000B00
+#define BBTOYS_VGA 0x02000B00
+#define BBTOYS_LCD 0x03000B00
+#define BEAGLE_NO_EEPROM 0xffffffff
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct {
+ unsigned int device_vendor;
+ unsigned char revision;
+ unsigned char content;
+ char fab_revision[8];
+ char env_var[16];
+ char env_setting[64];
+} expansion_config;
/*
* Routine: board_init
*/
int board_init(void)
{
- DECLARE_GLOBAL_DATA_PTR;
-
gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
/* board id for Linux */
gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
/* boot param addr */
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
+#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
+ status_led_set (STATUS_LED_BOOT, STATUS_LED_ON);
+#endif
+
return 0;
}
/*
- * Routine: beagle_get_revision
- * Description: Return the revision of the BeagleBoard this code is running on.
- * If it is a revision Ax/Bx board, this function returns 0,
- * on a revision C board you will get a 1.
+ * Routine: get_board_revision
+ * Description: Detect if we are running on a Beagle revision Ax/Bx,
+ * C1/2/3, C4 or xM. This can be done by reading
+ * the level of GPIO173, GPIO172 and GPIO171. This should
+ * result in
+ * GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
+ * GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
+ * GPIO173, GPIO172, GPIO171: 1 0 1 => C4
+ * GPIO173, GPIO172, GPIO171: 0 0 0 => xM
*/
-int beagle_get_revision(void)
+int get_board_revision(void)
{
- return beagle_revision_c;
+ int revision;
+
+ if (!omap_request_gpio(171) &&
+ !omap_request_gpio(172) &&
+ !omap_request_gpio(173)) {
+
+ omap_set_gpio_direction(171, 1);
+ omap_set_gpio_direction(172, 1);
+ omap_set_gpio_direction(173, 1);
+
+ revision = omap_get_gpio_datain(173) << 2 |
+ omap_get_gpio_datain(172) << 1 |
+ omap_get_gpio_datain(171);
+
+ omap_free_gpio(171);
+ omap_free_gpio(172);
+ omap_free_gpio(173);
+ } else {
+ printf("Error: unable to acquire board revision GPIOs\n");
+ revision = -1;
+ }
+
+ return revision;
}
/*
- * Routine: beagle_identify
- * Description: Detect if we are running on a Beagle revision Ax/Bx or
- * Cx. This can be done by GPIO_171. If this is low, we are
- * running on a revision C board.
+ * Routine: get_expansion_id
+ * Description: This function checks for expansion board by checking I2C
+ * bus 1 for the availability of an AT24C01B serial EEPROM.
+ * returns the device_vendor field from the EEPROM
*/
-void beagle_identify(void)
+unsigned int get_expansion_id(void)
{
- beagle_revision_c = 0;
- if (!omap_request_gpio(171)) {
- unsigned int val;
-
- omap_set_gpio_direction(171, 1);
- val = omap_get_gpio_datain(171);
- omap_free_gpio(171);
+ i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
- if (val)
- beagle_revision_c = 0;
- else
- beagle_revision_c = 1;
+ /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
+ if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
+ i2c_set_bus_num(TWL4030_I2C_BUS);
+ return BEAGLE_NO_EEPROM;
}
- printf("Board revision ");
- if (beagle_revision_c)
- printf("C\n");
- else
- printf("Ax/Bx\n");
+ /* read configuration data */
+ i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
+ sizeof(expansion_config));
+
+ i2c_set_bus_num(TWL4030_I2C_BUS);
+
+ return expansion_config.device_vendor;
}
/*
{
struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
+ struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
+
+ /* Enable i2c2 pullup resisters */
+ writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1);
+
+ switch (get_board_revision()) {
+ case REVISION_AXBX:
+ printf("Beagle Rev Ax/Bx\n");
+ setenv("beaglerev", "AxBx");
+ break;
+ case REVISION_CX:
+ printf("Beagle Rev C1/C2/C3\n");
+ setenv("beaglerev", "Cx");
+ MUX_BEAGLE_C();
+ break;
+ case REVISION_C4:
+ printf("Beagle Rev C4\n");
+ setenv("beaglerev", "C4");
+ MUX_BEAGLE_C();
+ /* Set VAUX2 to 1.8V for EHCI PHY */
+ twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
+ TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
+ TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
+ TWL4030_PM_RECEIVER_DEV_GRP_P1);
+ break;
+ case REVISION_XM_A:
+ printf("Beagle xM Rev A\n");
+ setenv("beaglerev", "xMA");
+ MUX_BEAGLE_XM();
+ /* Set VAUX2 to 1.8V for EHCI PHY */
+ twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
+ TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
+ TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
+ TWL4030_PM_RECEIVER_DEV_GRP_P1);
+ break;
+ case REVISION_XM_B:
+ printf("Beagle xM Rev B\n");
+ setenv("beaglerev", "xMB");
+ MUX_BEAGLE_XM();
+ /* Set VAUX2 to 1.8V for EHCI PHY */
+ twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
+ TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
+ TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
+ TWL4030_PM_RECEIVER_DEV_GRP_P1);
+ break;
+ default:
+ printf("Beagle unknown 0x%02x\n", get_board_revision());
+ MUX_BEAGLE_XM();
+ /* Set VAUX2 to 1.8V for EHCI PHY */
+ twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
+ TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
+ TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
+ TWL4030_PM_RECEIVER_DEV_GRP_P1);
+ }
+
+ switch (get_expansion_id()) {
+ case TINCANTOOLS_ZIPPY:
+ printf("Recognized Tincantools Zippy board (rev %d %s)\n",
+ expansion_config.revision,
+ expansion_config.fab_revision);
+ MUX_TINCANTOOLS_ZIPPY();
+ setenv("buddy", "zippy");
+ break;
+ case TINCANTOOLS_ZIPPY2:
+ printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
+ expansion_config.revision,
+ expansion_config.fab_revision);
+ MUX_TINCANTOOLS_ZIPPY();
+ setenv("buddy", "zippy2");
+ break;
+ case TINCANTOOLS_TRAINER:
+ printf("Recognized Tincantools Trainer board (rev %d %s)\n",
+ expansion_config.revision,
+ expansion_config.fab_revision);
+ MUX_TINCANTOOLS_ZIPPY();
+ MUX_TINCANTOOLS_TRAINER();
+ setenv("buddy", "trainer");
+ break;
+ case TINCANTOOLS_SHOWDOG:
+ printf("Recognized Tincantools Showdow board (rev %d %s)\n",
+ expansion_config.revision,
+ expansion_config.fab_revision);
+ /* Place holder for DSS2 definition for showdog lcd */
+ setenv("defaultdisplay", "showdoglcd");
+ setenv("buddy", "showdog");
+ break;
+ case KBADC_BEAGLEFPGA:
+ printf("Recognized KBADC Beagle FPGA board\n");
+ MUX_KBADC_BEAGLEFPGA();
+ setenv("buddy", "beaglefpga");
+ break;
+ case LW_BEAGLETOUCH:
+ printf("Recognized Liquidware BeagleTouch board\n");
+ setenv("buddy", "beagletouch");
+ break;
+ case BRAINMUX_LCDOG:
+ printf("Recognized Brainmux LCDog board\n");
+ setenv("buddy", "lcdog");
+ break;
+ case BRAINMUX_LCDOGTOUCH:
+ printf("Recognized Brainmux LCDog Touch board\n");
+ setenv("buddy", "lcdogtouch");
+ break;
+ case BBTOYS_WIFI:
+ printf("Recognized BeagleBoardToys WiFi board\n");
+ MUX_BBTOYS_WIFI()
+ setenv("buddy", "bbtoys-wifi");
+ break;;
+ case BBTOYS_VGA:
+ printf("Recognized BeagleBoardToys VGA board\n");
+ break;;
+ case BBTOYS_LCD:
+ printf("Recognized BeagleBoardToys LCD board\n");
+ break;;
+ case BEAGLE_NO_EEPROM:
+ printf("No EEPROM on expansion board\n");
+ setenv("buddy", "none");
+ break;
+ default:
+ printf("Unrecognized expansion board: %x\n",
+ expansion_config.device_vendor);
+ setenv("buddy", "unknown");
+ }
+
+ if (expansion_config.content == 1)
+ setenv(expansion_config.env_var, expansion_config.env_setting);
twl4030_power_init();
- twl4030_led_init();
+ twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
/* Configure GPIOs to output */
writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
- beagle_identify();
-
dieid_num_r();
return 0;
void set_muxconf_regs(void)
{
MUX_BEAGLE();
+}
- if (beagle_revision_c) {
- MUX_BEAGLE_C();
- }
+#ifdef CONFIG_GENERIC_MMC
+int board_mmc_init(bd_t *bis)
+{
+ omap_mmc_init(0);
+ return 0;
}
+#endif
+
+#ifdef CONFIG_USB_EHCI
+
+#define GPIO_PHY_RESET 147
+
+/* Reset is needed otherwise the kernel-driver will throw an error. */
+int ehci_hcd_stop(void)
+{
+ pr_debug("Resetting OMAP3 EHCI\n");
+ omap_set_gpio_dataout(GPIO_PHY_RESET, 0);
+ writel(OMAP_UHH_SYSCONFIG_SOFTRESET, OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
+ return 0;
+}
+
+/* Call usb_stop() before starting the kernel */
+void show_boot_progress(int val)
+{
+ if(val == 15)
+ usb_stop();
+}
+
+/*
+ * Initialize the OMAP3 EHCI controller and PHY on the BeagleBoard.
+ * Based on "drivers/usb/host/ehci-omap.c" from Linux 2.6.37.
+ * See there for additional Copyrights.
+ */
+int ehci_hcd_init(void)
+{
+ pr_debug("Initializing OMAP3 ECHI\n");
+
+ /* Put the PHY in RESET */
+ omap_request_gpio(GPIO_PHY_RESET);
+ omap_set_gpio_direction(GPIO_PHY_RESET, 0);
+ omap_set_gpio_dataout(GPIO_PHY_RESET, 0);
+
+ /* Hold the PHY in RESET for enough time till DIR is high */
+ /* Refer: ISSUE1 */
+ udelay(10);
+
+ struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+ /* Enable USBHOST_L3_ICLK (USBHOST_MICLK) */
+ sr32(&prcm_base->iclken_usbhost, 0, 1, 1);
+ /*
+ * Enable USBHOST_48M_FCLK (USBHOST_FCLK1)
+ * and USBHOST_120M_FCLK (USBHOST_FCLK2)
+ */
+ sr32(&prcm_base->fclken_usbhost, 0, 2, 3);
+ /* Enable USBTTL_ICLK */
+ sr32(&prcm_base->iclken3_core, 2, 1, 1);
+ /* Enable USBTTL_FCLK */
+ sr32(&prcm_base->fclken3_core, 2, 1, 1);
+ pr_debug("USB clocks enabled\n");
+
+ /* perform TLL soft reset, and wait until reset is complete */
+ writel(OMAP_USBTLL_SYSCONFIG_SOFTRESET,
+ OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
+ /* Wait for TLL reset to complete */
+ while (!(readl(OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSSTATUS)
+ & OMAP_USBTLL_SYSSTATUS_RESETDONE));
+ pr_debug("TLL reset done\n");
+
+ writel(OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
+ OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
+ OMAP_USBTLL_SYSCONFIG_CACTIVITY,
+ OMAP3_USBTLL_BASE + OMAP_USBTLL_SYSCONFIG);
+
+ /* Put UHH in NoIdle/NoStandby mode */
+ writel(OMAP_UHH_SYSCONFIG_ENAWAKEUP
+ | OMAP_UHH_SYSCONFIG_SIDLEMODE
+ | OMAP_UHH_SYSCONFIG_CACTIVITY
+ | OMAP_UHH_SYSCONFIG_MIDLEMODE,
+ OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
+
+ /* setup burst configurations */
+ writel(OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
+ | OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
+ | OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN,
+ OMAP3_UHH_BASE + OMAP_UHH_HOSTCONFIG);
+
+ /*
+ * Refer ISSUE1:
+ * Hold the PHY in RESET for enough time till
+ * PHY is settled and ready
+ */
+ udelay(10);
+ omap_set_gpio_dataout(GPIO_PHY_RESET, 1);
+
+ hccr = (struct ehci_hccr *)(OMAP3_EHCI_BASE);
+ hcor = (struct ehci_hcor *)(OMAP3_EHCI_BASE + 0x10);
+
+ pr_debug("OMAP3 EHCI init done\n");
+ return 0;
+}
+
+#endif /* CONFIG_USB_EHCI */
projects / oweals / u-boot.git / blobdiff