| /* |
| * Board functions for Compulab CM-T54 board |
| * |
| * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/ |
| * |
| * Author: Dmitry Lifshitz <lifshitz@compulab.co.il> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <usb.h> |
| #include <mmc.h> |
| #include <palmas.h> |
| |
| #include <asm/gpio.h> |
| #include <asm/arch/sys_proto.h> |
| #include <asm/arch/mmc_host_def.h> |
| #include <asm/arch/clock.h> |
| #include <asm/arch/ehci.h> |
| #include <asm/ehci-omap.h> |
| |
| #define DIE_ID_REG_BASE (OMAP54XX_L4_CORE_BASE + 0x2000) |
| #define DIE_ID_REG_OFFSET 0x200 |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| #if !defined(CONFIG_SPL_BUILD) |
| inline void set_muxconf_regs_essential(void){}; |
| #endif |
| |
| const struct omap_sysinfo sysinfo = { |
| "Board: CM-T54\n" |
| }; |
| |
| /* |
| * Routine: board_init |
| * Description: hardware init. |
| */ |
| int board_init(void) |
| { |
| gd->bd->bi_boot_params = (CONFIG_SYS_SDRAM_BASE + 0x100); /* boot param addr */ |
| |
| return 0; |
| } |
| |
| /* |
| * Routine: cm_t54_palmas_regulator_set |
| * Description: select voltage and turn on/off Palmas PMIC regulator. |
| */ |
| static int cm_t54_palmas_regulator_set(u8 vreg, u8 vval, u8 creg, u8 cval) |
| { |
| int err; |
| |
| /* Setup voltage */ |
| err = palmas_i2c_write_u8(TWL603X_CHIP_P1, vreg, vval); |
| if (err) { |
| printf("cm_t54: could not set regulator 0x%02x voltage : %d\n", |
| vreg, err); |
| return err; |
| } |
| |
| /* Turn on/off regulator */ |
| err = palmas_i2c_write_u8(TWL603X_CHIP_P1, creg, cval); |
| if (err) { |
| printf("cm_t54: could not turn on/off regulator 0x%02x : %d\n", |
| creg, err); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) |
| #define SB_T54_CD_GPIO 228 |
| #define SB_T54_WP_GPIO 229 |
| |
| int board_mmc_getcd(struct mmc *mmc) |
| { |
| return !gpio_get_value(SB_T54_CD_GPIO); |
| } |
| |
| int board_mmc_init(bd_t *bis) |
| { |
| int ret0, ret1; |
| |
| ret0 = omap_mmc_init(0, 0, 0, -1, SB_T54_WP_GPIO); |
| if (ret0) |
| printf("cm_t54: failed to initialize mmc0\n"); |
| |
| ret1 = omap_mmc_init(1, 0, 0, -1, -1); |
| if (ret1) |
| printf("cm_t54: failed to initialize mmc1\n"); |
| |
| if (ret0 && ret1) |
| return -1; |
| |
| return 0; |
| } |
| #endif |
| |
| #ifdef CONFIG_USB_EHCI |
| static struct omap_usbhs_board_data usbhs_bdata = { |
| .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED, |
| .port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC, |
| .port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC, |
| }; |
| |
| static void setup_host_clocks(bool enable) |
| { |
| int usbhost_clk = OPTFCLKEN_HSIC60M_P3_CLK | |
| OPTFCLKEN_HSIC480M_P3_CLK | |
| OPTFCLKEN_HSIC60M_P2_CLK | |
| OPTFCLKEN_HSIC480M_P2_CLK | |
| OPTFCLKEN_UTMI_P3_CLK | |
| OPTFCLKEN_UTMI_P2_CLK; |
| |
| int usbtll_clk = OPTFCLKEN_USB_CH1_CLK_ENABLE | |
| OPTFCLKEN_USB_CH2_CLK_ENABLE; |
| |
| int usbhub_clk = CKOBUFFER_CLK_ENABLE_MASK; |
| |
| if (enable) { |
| /* Enable port 2 and 3 clocks*/ |
| setbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, usbhost_clk); |
| /* Enable port 2 and 3 usb host ports tll clocks*/ |
| setbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl, usbtll_clk); |
| /* Request FREF_XTAL_CLK clock for HSIC USB Hub */ |
| setbits_le32((*ctrl)->control_ckobuffer, usbhub_clk); |
| } else { |
| clrbits_le32((*ctrl)->control_ckobuffer, usbhub_clk); |
| clrbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl, usbtll_clk); |
| clrbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, usbhost_clk); |
| } |
| } |
| |
| int ehci_hcd_init(int index, enum usb_init_type init, |
| struct ehci_hccr **hccr, struct ehci_hcor **hcor) |
| { |
| int ret; |
| |
| /* VCC_3V3_ETH */ |
| cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_3V3, SMPS9_CTRL, |
| SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO); |
| |
| setup_host_clocks(true); |
| |
| ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor); |
| if (ret < 0) |
| printf("cm_t54: Failed to initialize ehci : %d\n", ret); |
| |
| return ret; |
| } |
| |
| int ehci_hcd_stop(void) |
| { |
| int ret = omap_ehci_hcd_stop(); |
| |
| setup_host_clocks(false); |
| |
| cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_OFF, |
| SMPS9_CTRL, SMPS_MODE_SLP_AUTO); |
| |
| return ret; |
| } |
| |
| void usb_hub_reset_devices(int port) |
| { |
| /* The LAN9730 needs to be reset after the port power has been set. */ |
| if (port == 3) { |
| gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0); |
| udelay(10); |
| gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1); |
| } |
| } |
| #endif |
| |