2 * Board functions for Compulab CM-T54 board
4 * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
6 * Author: Dmitry Lifshitz <lifshitz@compulab.co.il>
8 * SPDX-License-Identifier: GPL-2.0+
12 #include <fdt_support.h>
19 #include <asm/arch/sys_proto.h>
20 #include <asm/arch/mmc_host_def.h>
21 #include <asm/arch/clock.h>
22 #include <asm/arch/ehci.h>
23 #include <asm/ehci-omap.h>
25 #include "../common/eeprom.h"
27 #define DIE_ID_REG_BASE (OMAP54XX_L4_CORE_BASE + 0x2000)
28 #define DIE_ID_REG_OFFSET 0x200
30 DECLARE_GLOBAL_DATA_PTR;
32 #if !defined(CONFIG_SPL_BUILD)
33 inline void set_muxconf_regs(void){};
36 const struct omap_sysinfo sysinfo = {
42 * Description: hardware init.
46 gd->bd->bi_boot_params = (CONFIG_SYS_SDRAM_BASE + 0x100);
52 * Routine: cm_t54_palmas_regulator_set
53 * Description: select voltage and turn on/off Palmas PMIC regulator.
55 static int cm_t54_palmas_regulator_set(u8 vreg, u8 vval, u8 creg, u8 cval)
60 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, vreg, vval);
62 printf("cm_t54: could not set regulator 0x%02x voltage : %d\n",
67 /* Turn on/off regulator */
68 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, creg, cval);
70 printf("cm_t54: could not turn on/off regulator 0x%02x : %d\n",
79 * Routine: mmc_get_env_part
80 * Description: setup environment storage device partition.
82 #ifdef CONFIG_SYS_MMC_ENV_PART
83 uint mmc_get_env_part(struct mmc *mmc)
85 u32 bootmode = gd->arch.omap_boot_mode;
86 uint bootpart = CONFIG_SYS_MMC_ENV_PART;
89 * If booted from eMMC boot partition then force eMMC
90 * FIRST boot partition to be env storage
92 if (bootmode == BOOT_DEVICE_MMC2)
99 #if defined(CONFIG_MMC)
100 #define SB_T54_CD_GPIO 228
101 #define SB_T54_WP_GPIO 229
103 int board_mmc_init(bd_t *bis)
107 ret0 = omap_mmc_init(0, 0, 0, SB_T54_CD_GPIO, SB_T54_WP_GPIO);
109 printf("cm_t54: failed to initialize mmc0\n");
111 ret1 = omap_mmc_init(1, 0, 0, -1, -1);
113 printf("cm_t54: failed to initialize mmc1\n");
122 #ifdef CONFIG_USB_HOST_ETHER
124 int ft_board_setup(void *blob, bd_t *bd)
129 if (eth_getenv_enetaddr("usbethaddr", enetaddr)) {
130 fdt_find_and_setprop(blob, "/smsc95xx@0", "mac-address",
137 static void generate_mac_addr(uint8_t *enetaddr)
141 reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;
144 * create a fake MAC address from the processor ID code.
145 * first byte is 0x02 to signify locally administered.
148 enetaddr[1] = readl(reg + 0x10) & 0xff;
149 enetaddr[2] = readl(reg + 0xC) & 0xff;
150 enetaddr[3] = readl(reg + 0x8) & 0xff;
151 enetaddr[4] = readl(reg) & 0xff;
152 enetaddr[5] = (readl(reg) >> 8) & 0xff;
156 * Routine: handle_mac_address
157 * Description: prepare MAC address for on-board Ethernet.
159 static int handle_mac_address(void)
164 ret = eth_getenv_enetaddr("usbethaddr", enetaddr);
168 ret = cl_eeprom_read_mac_addr(enetaddr, CONFIG_SYS_I2C_EEPROM_BUS);
169 if (ret || !is_valid_ethaddr(enetaddr))
170 generate_mac_addr(enetaddr);
172 if (!is_valid_ethaddr(enetaddr))
175 return eth_setenv_enetaddr("usbethaddr", enetaddr);
178 int board_eth_init(bd_t *bis)
180 return handle_mac_address();
184 #ifdef CONFIG_USB_EHCI_HCD
185 static struct omap_usbhs_board_data usbhs_bdata = {
186 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
187 .port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC,
188 .port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC,
191 static void setup_host_clocks(bool enable)
193 int usbhost_clk = OPTFCLKEN_HSIC60M_P3_CLK |
194 OPTFCLKEN_HSIC480M_P3_CLK |
195 OPTFCLKEN_HSIC60M_P2_CLK |
196 OPTFCLKEN_HSIC480M_P2_CLK |
197 OPTFCLKEN_UTMI_P3_CLK |
198 OPTFCLKEN_UTMI_P2_CLK;
200 int usbtll_clk = OPTFCLKEN_USB_CH1_CLK_ENABLE |
201 OPTFCLKEN_USB_CH2_CLK_ENABLE;
203 int usbhub_clk = CKOBUFFER_CLK_ENABLE_MASK;
206 /* Enable port 2 and 3 clocks*/
207 setbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, usbhost_clk);
208 /* Enable port 2 and 3 usb host ports tll clocks*/
209 setbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl, usbtll_clk);
210 /* Request FREF_XTAL_CLK clock for HSIC USB Hub */
211 setbits_le32((*ctrl)->control_ckobuffer, usbhub_clk);
213 clrbits_le32((*ctrl)->control_ckobuffer, usbhub_clk);
214 clrbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl, usbtll_clk);
215 clrbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, usbhost_clk);
219 int ehci_hcd_init(int index, enum usb_init_type init,
220 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
225 cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_3V3, SMPS9_CTRL,
226 SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO);
228 setup_host_clocks(true);
230 ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
232 printf("cm_t54: Failed to initialize ehci : %d\n", ret);
237 int ehci_hcd_stop(void)
239 int ret = omap_ehci_hcd_stop();
241 setup_host_clocks(false);
243 cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_OFF,
244 SMPS9_CTRL, SMPS_MODE_SLP_AUTO);
249 void usb_hub_reset_devices(int port)
251 /* The LAN9730 needs to be reset after the port power has been set. */
253 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
255 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);