diff options
Diffstat (limited to 'board/ti/beagle/beagle.c')
| -rw-r--r-- | board/ti/beagle/beagle.c | 169 |
1 files changed, 163 insertions, 6 deletions
diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c index c066d6e..4e194a2 100644 --- a/board/ti/beagle/beagle.c +++ b/board/ti/beagle/beagle.c @@ -30,6 +30,9 @@ * 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> @@ -37,8 +40,19 @@ #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" +#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 @@ -48,7 +62,12 @@ #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; @@ -74,6 +93,10 @@ int board_init(void) /* 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; } @@ -148,23 +171,24 @@ int misc_init_r(void) { 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 gpio *)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"); - setenv("mpurate", "600"); break; case REVISION_CX: printf("Beagle Rev C1/C2/C3\n"); setenv("beaglerev", "Cx"); - setenv("mpurate", "600"); MUX_BEAGLE_C(); break; case REVISION_C4: printf("Beagle Rev C4\n"); setenv("beaglerev", "C4"); - setenv("mpurate", "720"); MUX_BEAGLE_C(); /* Set VAUX2 to 1.8V for EHCI PHY */ twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED, @@ -172,10 +196,19 @@ int misc_init_r(void) TWL4030_PM_RECEIVER_VAUX2_DEV_GRP, TWL4030_PM_RECEIVER_DEV_GRP_P1); break; - case REVISION_XM: + case REVISION_XM_A: printf("Beagle xM Rev A\n"); setenv("beaglerev", "xMA"); - setenv("mpurate", "1000"); + 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, @@ -185,6 +218,12 @@ int misc_init_r(void) 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()) { @@ -223,6 +262,29 @@ int misc_init_r(void) 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"); @@ -273,3 +335,98 @@ int board_mmc_init(bd_t *bis) 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 */ |