]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - arch/arm/cpu/armv7/am33xx/board.c
TX6 Release 2013-04-22
[karo-tx-uboot.git] / arch / arm / cpu / armv7 / am33xx / board.c
index 46134899e4886612404b1e2c4d7438de5f34798d..e711f0bf4a239ee45c24227b5ead7442e4338bd9 100644 (file)
  */
 
 #include <common.h>
+#include <errno.h>
+#include <spl.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/omap.h>
 #include <asm/arch/ddr_defs.h>
 #include <asm/arch/clock.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/mem.h>
 #include <asm/arch/mmc_host_def.h>
-#include <asm/arch/common_def.h>
+#include <asm/arch/sys_proto.h>
 #include <asm/io.h>
-#include <asm/omap_common.h>
+#include <asm/emif.h>
+#include <asm/gpio.h>
+#include <i2c.h>
+#include <miiphy.h>
+//#include <cpsw.h>
+#include <asm/errno.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/musb.h>
+#include <asm/omap_musb.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-/* UART Defines */
-#ifdef CONFIG_SPL_BUILD
-#define UART_RESET             (0x1 << 1)
-#define UART_CLK_RUNNING_MASK  0x1
-#define UART_SMART_IDLE_EN     (0x1 << 0x3)
-#endif
+static const struct gpio_bank gpio_bank_am33xx[4] = {
+       { (void *)AM33XX_GPIO0_BASE, METHOD_GPIO_24XX },
+       { (void *)AM33XX_GPIO1_BASE, METHOD_GPIO_24XX },
+       { (void *)AM33XX_GPIO2_BASE, METHOD_GPIO_24XX },
+       { (void *)AM33XX_GPIO3_BASE, METHOD_GPIO_24XX },
+};
 
-void reset_cpu(unsigned long ignored)
-{
-       /* clear RESET flags */
-       writel(~0, PRM_RSTST);
-       writel(PRM_RSTCTRL_RESET, PRM_RSTCTRL);
-}
+const struct gpio_bank *const omap_gpio_bank = gpio_bank_am33xx;
 
 #ifdef CONFIG_HW_WATCHDOG
 void hw_watchdog_reset(void)
@@ -89,102 +97,101 @@ void hw_watchdog_reset(void)
 }
 #endif
 
-/*
- * early system init of muxing and clocks.
- */
-void s_init(void)
+#if defined(CONFIG_OMAP_HSMMC) && !defined(CONFIG_SPL_BUILD)
+int cpu_mmc_init(bd_t *bis)
 {
-#ifdef CONFIG_SPL_BUILD
-#ifndef CONFIG_HW_WATCHDOG
-       struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
-
-       /* WDT1 is already running when the bootloader gets control
-        * Disable it to avoid "random" resets
-        */
-       writel(0xAAAA, &wdtimer->wdtwspr);
-       while (readl(&wdtimer->wdtwwps) != 0x0)
-               ;
-       writel(0x5555, &wdtimer->wdtwspr);
-       while (readl(&wdtimer->wdtwwps) != 0x0)
-               ;
-#endif
-       /* Setup the PLLs and the clocks for the peripherals */
-       pll_init();
-
-       /* UART softreset */
-       u32 regVal;
-       struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
+       int ret;
 
-       enable_uart0_pin_mux();
-
-       regVal = readl(&uart_base->uartsyscfg);
-       regVal |= UART_RESET;
-       writel(regVal, &uart_base->uartsyscfg);
-       while ((readl(&uart_base->uartsyssts) &
-               UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
-               ;
-
-       /* Disable smart idle */
-       regVal = readl(&uart_base->uartsyscfg);
-       regVal |= UART_SMART_IDLE_EN;
-       writel(regVal, &uart_base->uartsyscfg);
+       ret = omap_mmc_init(0, 0, 0);
+       if (ret)
+               return ret;
 
-       /* Initialize the Timer */
-       timer_init();
+       return omap_mmc_init(1, 0, 0);
+}
+#endif
 
-       preloader_console_init();
+void setup_clocks_for_console(void)
+{
+       /* Not yet implemented */
+       return;
+}
 
-       config_ddr();
+/* AM33XX has two MUSB controllers which can be host or gadget */
+#if (defined(CONFIG_MUSB_GADGET) || defined(CONFIG_MUSB_HOST)) && \
+       (defined(CONFIG_AM335X_USB0) || defined(CONFIG_AM335X_USB1))
+static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 
-       /* Enable MMC0 */
-       enable_mmc0_pin_mux();
-#endif
-}
+/* USB 2.0 PHY Control */
+#define CM_PHY_PWRDN                   (1 << 0)
+#define CM_PHY_OTG_PWRDN               (1 << 1)
+#define OTGVDET_EN                     (1 << 19)
+#define OTGSESSENDEN                   (1 << 20)
 
-#if defined(CONFIG_OMAP_HSMMC) && !defined(CONFIG_SPL_BUILD)
-int board_mmc_init(bd_t *bis)
+static void am33xx_usb_set_phy_power(u8 on, u32 *reg_addr)
 {
-       int ret = 0;
-#ifdef CONFIG_OMAP_MMC_DEV_0
-       ret = omap_mmc_init(0, 0, 0);
-       if (ret)
-               printf("Error %d while initializing MMC dev 0\n", ret);
-#endif
-#ifdef CONFIG_OMAP_MMC_DEV_1
-       ret = omap_mmc_init(1, 0, 0);
-       if (ret)
-               printf("Error %d while initializing MMC dev 1\n", ret);
-#endif
-       return ret;
+       if (on) {
+               clrsetbits_le32(reg_addr, CM_PHY_PWRDN | CM_PHY_OTG_PWRDN,
+                               OTGVDET_EN | OTGSESSENDEN);
+       } else {
+               clrsetbits_le32(reg_addr, 0, CM_PHY_PWRDN | CM_PHY_OTG_PWRDN);
+       }
 }
-#endif
 
-#ifndef CONFIG_SYS_DCACHE_OFF
-void enable_caches(void)
+static struct musb_hdrc_config musb_config = {
+       .multipoint     = 1,
+       .dyn_fifo       = 1,
+       .num_eps        = 16,
+       .ram_bits       = 12,
+};
+
+#ifdef CONFIG_AM335X_USB0
+static void am33xx_otg0_set_phy_power(u8 on)
 {
-       /* Enable D-cache. I-cache is already enabled in start.S */
-       dcache_enable();
+       am33xx_usb_set_phy_power(on, &cdev->usb_ctrl0);
 }
+
+struct omap_musb_board_data otg0_board_data = {
+       .set_phy_power = am33xx_otg0_set_phy_power,
+};
+
+static struct musb_hdrc_platform_data otg0_plat = {
+       .mode           = CONFIG_AM335X_USB0_MODE,
+       .config         = &musb_config,
+       .power          = 50,
+       .platform_ops   = &musb_dsps_ops,
+       .board_data     = &otg0_board_data,
+};
 #endif
 
-static u32 cortex_rev(void)
+#ifdef CONFIG_AM335X_USB1
+static void am33xx_otg1_set_phy_power(u8 on)
 {
-
-       unsigned int rev;
-
-       /* Read Main ID Register (MIDR) */
-       asm ("mrc p15, 0, %0, c0, c0, 0" : "=r" (rev));
-
-       return rev;
+       am33xx_usb_set_phy_power(on, &cdev->usb_ctrl1);
 }
 
-void omap_rev_string(void)
-{
-       u32 omap_rev = cortex_rev();
-       u32 omap_variant = (omap_rev & 0xFFFF0000) >> 16;
-       u32 major_rev = (omap_rev & 0x00000F00) >> 8;
-       u32 minor_rev = (omap_rev & 0x000000F0) >> 4;
+struct omap_musb_board_data otg1_board_data = {
+       .set_phy_power = am33xx_otg1_set_phy_power,
+};
+
+static struct musb_hdrc_platform_data otg1_plat = {
+       .mode           = CONFIG_AM335X_USB1_MODE,
+       .config         = &musb_config,
+       .power          = 50,
+       .platform_ops   = &musb_dsps_ops,
+       .board_data     = &otg1_board_data,
+};
+#endif
+#endif
 
-       printf("OMAP%x ES%x.%x\n", omap_variant, major_rev,
-               minor_rev);
+int arch_misc_init(void)
+{
+#ifdef CONFIG_AM335X_USB0
+       musb_register(&otg0_plat, &otg0_board_data,
+               (void *)AM335X_USB0_OTG_BASE);
+#endif
+#ifdef CONFIG_AM335X_USB1
+       musb_register(&otg1_plat, &otg1_board_data,
+               (void *)AM335X_USB1_OTG_BASE);
+#endif
+       return 0;
 }