--- /dev/null
+/*
+ * board.c
+ *
+ * Board functions for Phytec phyCORE-AM335x (pcm051) based boards
+ *
+ * Copyright (C) 2013 Lemonage Software GmbH
+ * Author Lars Poeschel <poeschel@lemonage.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#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/mmc_host_def.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/io.h>
+#include <asm/emif.h>
+#include <asm/gpio.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <cpsw.h>
+#include "board.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
+
+/* MII mode defines */
+#define MII_MODE_ENABLE 0x0
+#define RGMII_MODE_ENABLE 0xA
+#define RMII_RGMII2_MODE_ENABLE 0x49
+
+static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+
+#ifdef CONFIG_SPL_BUILD
+
+/* DDR RAM defines */
+#define DDR_CLK_MHZ 303 /* DDR_DPLL_MULT value */
+
+static const struct ddr_data ddr3_data = {
+ .datardsratio0 = MT41J256M8HX15E_RD_DQS,
+ .datawdsratio0 = MT41J256M8HX15E_WR_DQS,
+ .datafwsratio0 = MT41J256M8HX15E_PHY_FIFO_WE,
+ .datawrsratio0 = MT41J256M8HX15E_PHY_WR_DATA,
+ .datadldiff0 = PHY_DLL_LOCK_DIFF,
+};
+
+static const struct cmd_control ddr3_cmd_ctrl_data = {
+ .cmd0csratio = MT41J256M8HX15E_RATIO,
+ .cmd0dldiff = MT41J256M8HX15E_DLL_LOCK_DIFF,
+ .cmd0iclkout = MT41J256M8HX15E_INVERT_CLKOUT,
+
+ .cmd1csratio = MT41J256M8HX15E_RATIO,
+ .cmd1dldiff = MT41J256M8HX15E_DLL_LOCK_DIFF,
+ .cmd1iclkout = MT41J256M8HX15E_INVERT_CLKOUT,
+
+ .cmd2csratio = MT41J256M8HX15E_RATIO,
+ .cmd2dldiff = MT41J256M8HX15E_DLL_LOCK_DIFF,
+ .cmd2iclkout = MT41J256M8HX15E_INVERT_CLKOUT,
+};
+
+static struct emif_regs ddr3_emif_reg_data = {
+ .sdram_config = MT41J256M8HX15E_EMIF_SDCFG,
+ .ref_ctrl = MT41J256M8HX15E_EMIF_SDREF,
+ .sdram_tim1 = MT41J256M8HX15E_EMIF_TIM1,
+ .sdram_tim2 = MT41J256M8HX15E_EMIF_TIM2,
+ .sdram_tim3 = MT41J256M8HX15E_EMIF_TIM3,
+ .zq_config = MT41J256M8HX15E_ZQ_CFG,
+ .emif_ddr_phy_ctlr_1 = MT41J256M8HX15E_EMIF_READ_LATENCY |
+ PHY_EN_DYN_PWRDN,
+};
+#endif
+
+/*
+ * early system init of muxing and clocks.
+ */
+void s_init(void)
+{
+ /*
+ * Save the boot parameters passed from romcode.
+ * We cannot delay the saving further than this,
+ * to prevent overwrites.
+ */
+#ifdef CONFIG_SPL_BUILD
+ save_omap_boot_params();
+#endif
+
+ /*
+ * 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)
+ ;
+
+#ifdef CONFIG_SPL_BUILD
+ /* Setup the PLLs and the clocks for the peripherals */
+ pll_init();
+
+ /* Enable RTC32K clock */
+ rtc32k_enable();
+
+ enable_uart0_pin_mux();
+ uart_soft_reset();
+
+ gd = &gdata;
+
+ preloader_console_init();
+
+ /* Initalize the board header */
+ enable_i2c0_pin_mux();
+ i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+
+ enable_board_pin_mux();
+
+ config_ddr(DDR_CLK_MHZ, MT41J256M8HX15E_IOCTRL_VALUE, &ddr3_data,
+ &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
+#endif
+}
+
+/*
+ * Basic board specific setup. Pinmux has been handled already.
+ */
+int board_init(void)
+{
+ i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+
+ gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100;
+
+ return 0;
+}
+
+#ifdef CONFIG_DRIVER_TI_CPSW
+static void cpsw_control(int enabled)
+{
+ /* VTP can be added here */
+
+ return;
+}
+
+static struct cpsw_slave_data cpsw_slaves[] = {
+ {
+ .slave_reg_ofs = 0x208,
+ .sliver_reg_ofs = 0xd80,
+ .phy_id = 0,
+ .phy_if = PHY_INTERFACE_MODE_RGMII,
+ },
+ {
+ .slave_reg_ofs = 0x308,
+ .sliver_reg_ofs = 0xdc0,
+ .phy_id = 1,
+ .phy_if = PHY_INTERFACE_MODE_RGMII,
+ },
+};
+
+static struct cpsw_platform_data cpsw_data = {
+ .mdio_base = CPSW_MDIO_BASE,
+ .cpsw_base = CPSW_BASE,
+ .mdio_div = 0xff,
+ .channels = 8,
+ .cpdma_reg_ofs = 0x800,
+ .slaves = 1,
+ .slave_data = cpsw_slaves,
+ .ale_reg_ofs = 0xd00,
+ .ale_entries = 1024,
+ .host_port_reg_ofs = 0x108,
+ .hw_stats_reg_ofs = 0x900,
+ .mac_control = (1 << 5),
+ .control = cpsw_control,
+ .host_port_num = 0,
+ .version = CPSW_CTRL_VERSION_2,
+};
+#endif
+
+#if defined(CONFIG_DRIVER_TI_CPSW) || \
+ (defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
+int board_eth_init(bd_t *bis)
+{
+ int rv, n = 0;
+#ifdef CONFIG_DRIVER_TI_CPSW
+ uint8_t mac_addr[6];
+ uint32_t mac_hi, mac_lo;
+
+ if (!eth_getenv_enetaddr("ethaddr", mac_addr)) {
+ printf("<ethaddr> not set. Reading from E-fuse\n");
+ /* try reading mac address from efuse */
+ mac_lo = readl(&cdev->macid0l);
+ mac_hi = readl(&cdev->macid0h);
+ mac_addr[0] = mac_hi & 0xFF;
+ mac_addr[1] = (mac_hi & 0xFF00) >> 8;
+ mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
+ mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
+ mac_addr[4] = mac_lo & 0xFF;
+ mac_addr[5] = (mac_lo & 0xFF00) >> 8;
+
+ if (is_valid_ether_addr(mac_addr))
+ eth_setenv_enetaddr("ethaddr", mac_addr);
+ else
+ goto try_usbether;
+ }
+
+ writel(RMII_RGMII2_MODE_ENABLE, &cdev->miisel);
+
+ rv = cpsw_register(&cpsw_data);
+ if (rv < 0)
+ printf("Error %d registering CPSW switch\n", rv);
+ else
+ n += rv;
+try_usbether:
+#endif
+
+#if defined(CONFIG_USB_ETHER) && !defined(CONFIG_SPL_BUILD)
+ rv = usb_eth_initialize(bis);
+ if (rv < 0)
+ printf("Error %d registering USB_ETHER\n", rv);
+ else
+ n += rv;
+#endif
+ return n;
+}
+#endif
projects / karo-tx-uboot.git / blobdiff