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https://github.com/brain-hackers/u-boot-brain
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076446f106
Add cm-t54 board directory, config file. Enable build. Basic support includes: Serial console SD/MMC eMMC USB Ethernet Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
178 lines
4.0 KiB
C
178 lines
4.0 KiB
C
/*
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* Board functions for Compulab CM-T54 board
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*
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* Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
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*
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* Author: Dmitry Lifshitz <lifshitz@compulab.co.il>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <usb.h>
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#include <mmc.h>
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#include <palmas.h>
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#include <asm/gpio.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/ehci.h>
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#include <asm/ehci-omap.h>
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#define DIE_ID_REG_BASE (OMAP54XX_L4_CORE_BASE + 0x2000)
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#define DIE_ID_REG_OFFSET 0x200
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DECLARE_GLOBAL_DATA_PTR;
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#if !defined(CONFIG_SPL_BUILD)
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inline void set_muxconf_regs_essential(void){};
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#endif
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const struct omap_sysinfo sysinfo = {
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"Board: CM-T54\n"
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};
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/*
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* Routine: board_init
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* Description: hardware init.
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*/
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int board_init(void)
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{
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gd->bd->bi_boot_params = (CONFIG_SYS_SDRAM_BASE + 0x100); /* boot param addr */
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return 0;
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}
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/*
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* Routine: cm_t54_palmas_regulator_set
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* Description: select voltage and turn on/off Palmas PMIC regulator.
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*/
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static int cm_t54_palmas_regulator_set(u8 vreg, u8 vval, u8 creg, u8 cval)
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{
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int err;
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/* Setup voltage */
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err = palmas_i2c_write_u8(TWL603X_CHIP_P1, vreg, vval);
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if (err) {
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printf("cm_t54: could not set regulator 0x%02x voltage : %d\n",
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vreg, err);
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return err;
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}
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/* Turn on/off regulator */
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err = palmas_i2c_write_u8(TWL603X_CHIP_P1, creg, cval);
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if (err) {
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printf("cm_t54: could not turn on/off regulator 0x%02x : %d\n",
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creg, err);
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return err;
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}
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return 0;
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}
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#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
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#define SB_T54_CD_GPIO 228
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#define SB_T54_WP_GPIO 229
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int board_mmc_getcd(struct mmc *mmc)
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{
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return !gpio_get_value(SB_T54_CD_GPIO);
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}
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int board_mmc_init(bd_t *bis)
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{
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int ret0, ret1;
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ret0 = omap_mmc_init(0, 0, 0, -1, SB_T54_WP_GPIO);
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if (ret0)
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printf("cm_t54: failed to initialize mmc0\n");
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ret1 = omap_mmc_init(1, 0, 0, -1, -1);
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if (ret1)
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printf("cm_t54: failed to initialize mmc1\n");
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if (ret0 && ret1)
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return -1;
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return 0;
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}
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#endif
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#ifdef CONFIG_USB_EHCI
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static struct omap_usbhs_board_data usbhs_bdata = {
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.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
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.port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC,
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.port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC,
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};
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static void setup_host_clocks(bool enable)
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{
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int usbhost_clk = OPTFCLKEN_HSIC60M_P3_CLK |
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OPTFCLKEN_HSIC480M_P3_CLK |
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OPTFCLKEN_HSIC60M_P2_CLK |
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OPTFCLKEN_HSIC480M_P2_CLK |
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OPTFCLKEN_UTMI_P3_CLK |
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OPTFCLKEN_UTMI_P2_CLK;
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int usbtll_clk = OPTFCLKEN_USB_CH1_CLK_ENABLE |
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OPTFCLKEN_USB_CH2_CLK_ENABLE;
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int usbhub_clk = CKOBUFFER_CLK_ENABLE_MASK;
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if (enable) {
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/* Enable port 2 and 3 clocks*/
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setbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, usbhost_clk);
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/* Enable port 2 and 3 usb host ports tll clocks*/
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setbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl, usbtll_clk);
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/* Request FREF_XTAL_CLK clock for HSIC USB Hub */
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setbits_le32((*ctrl)->control_ckobuffer, usbhub_clk);
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} else {
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clrbits_le32((*ctrl)->control_ckobuffer, usbhub_clk);
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clrbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl, usbtll_clk);
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clrbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, usbhost_clk);
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}
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}
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int ehci_hcd_init(int index, enum usb_init_type init,
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struct ehci_hccr **hccr, struct ehci_hcor **hcor)
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{
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int ret;
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/* VCC_3V3_ETH */
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cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_3V3, SMPS9_CTRL,
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SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO);
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setup_host_clocks(true);
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ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
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if (ret < 0)
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printf("cm_t54: Failed to initialize ehci : %d\n", ret);
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return ret;
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}
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int ehci_hcd_stop(void)
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{
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int ret = omap_ehci_hcd_stop();
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setup_host_clocks(false);
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cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_OFF,
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SMPS9_CTRL, SMPS_MODE_SLP_AUTO);
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return ret;
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}
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void usb_hub_reset_devices(int port)
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{
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/* The LAN9730 needs to be reset after the port power has been set. */
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if (port == 3) {
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gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
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udelay(10);
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gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);
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}
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}
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#endif
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