[u-boot.git] / board / compulab / cm_t54 / cm_t54.c

/*
 * Board functions for Compulab CM-T54 board
 *
 * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
 *
 * Author: Dmitry Lifshitz <[email protected]>
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

#include <common.h>
#include <fdt_support.h>
#include <usb.h>
#include <mmc.h>
#include <palmas.h>
#include <spl.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>

#include "../common/eeprom.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(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);

	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;
}

/*
 * Routine: mmc_get_env_part
 * Description:  setup environment storage device partition.
 */
#ifdef CONFIG_SYS_MMC_ENV_PART
uint mmc_get_env_part(struct mmc *mmc)
{
	u32 bootmode = gd->arch.omap_boot_mode;
	uint bootpart = CONFIG_SYS_MMC_ENV_PART;

	/*
	 * If booted from eMMC boot partition then force eMMC
	 * FIRST boot partition to be env storage
	 */
	if (bootmode == BOOT_DEVICE_MMC2)
		bootpart = 1;

	return bootpart;
}
#endif

#if defined(CONFIG_MMC)
#define SB_T54_CD_GPIO 228
#define SB_T54_WP_GPIO 229

int board_mmc_init(bd_t *bis)
{
	int ret0, ret1;

	ret0 = omap_mmc_init(0, 0, 0, SB_T54_CD_GPIO, 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_HOST_ETHER

int ft_board_setup(void *blob, bd_t *bd)
{
	uint8_t enetaddr[6];

	/* MAC addr */
	if (eth_env_get_enetaddr("usbethaddr", enetaddr)) {
		fdt_find_and_setprop(blob, "/smsc95xx@0", "mac-address",
				     enetaddr, 6, 1);
	}

	return 0;
}

static void generate_mac_addr(uint8_t *enetaddr)
{
	int reg;

	reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;

	/*
	 * create a fake MAC address from the processor ID code.
	 * first byte is 0x02 to signify locally administered.
	 */
	enetaddr[0] = 0x02;
	enetaddr[1] = readl(reg + 0x10) & 0xff;
	enetaddr[2] = readl(reg + 0xC) & 0xff;
	enetaddr[3] = readl(reg + 0x8) & 0xff;
	enetaddr[4] = readl(reg) & 0xff;
	enetaddr[5] = (readl(reg) >> 8) & 0xff;
}

/*
 * Routine: handle_mac_address
 * Description: prepare MAC address for on-board Ethernet.
 */
static int handle_mac_address(void)
{
	uint8_t enetaddr[6];
	int ret;

	ret = eth_env_get_enetaddr("usbethaddr", enetaddr);
	if (ret)
		return 0;

	ret = cl_eeprom_read_mac_addr(enetaddr, CONFIG_SYS_I2C_EEPROM_BUS);
	if (ret || !is_valid_ethaddr(enetaddr))
		generate_mac_addr(enetaddr);

	if (!is_valid_ethaddr(enetaddr))
		return -1;

	return eth_env_set_enetaddr("usbethaddr", enetaddr);
}

int board_eth_init(bd_t *bis)
{
	return handle_mac_address();
}
#endif

#ifdef CONFIG_USB_EHCI_HCD
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
Commit	Line	Data
076446f1 DL	1	/*
	2	* Board functions for Compulab CM-T54 board
	3	*
	4	* Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
	5	*
	6	* Author: Dmitry Lifshitz <[email protected]>
	7	*
	8	* SPDX-License-Identifier: GPL-2.0+
	9	*/
	10
	11	#include <common.h>
a9375f33	12	#include <fdt_support.h>
076446f1 DL	13	#include <usb.h>
	14	#include <mmc.h>
	15	#include <palmas.h>
1c8c36f5	16	#include <spl.h>
076446f1 DL	17
	18	#include <asm/gpio.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>
	24
a9375f33 DL	25	#include "../common/eeprom.h"
a9375f33 DL	26
076446f1 DL	27	#define DIE_ID_REG_BASE (OMAP54XX_L4_CORE_BASE + 0x2000)
	28	#define DIE_ID_REG_OFFSET 0x200
	29
	30	DECLARE_GLOBAL_DATA_PTR;
	31
	32	#if !defined(CONFIG_SPL_BUILD)
3ef56e61	33	inline void set_muxconf_regs(void){};
076446f1 DL	34	#endif
	35
	36	const struct omap_sysinfo sysinfo = {
	37	"Board: CM-T54\n"
	38	};
	39
	40	/*
	41	* Routine: board_init
	42	* Description: hardware init.
	43	*/
	44	int board_init(void)
	45	{
91c9885e	46	gd->bd->bi_boot_params = (CONFIG_SYS_SDRAM_BASE + 0x100);
076446f1 DL	47
	48	return 0;
	49	}
	50
	51	/*
	52	* Routine: cm_t54_palmas_regulator_set
	53	* Description: select voltage and turn on/off Palmas PMIC regulator.
	54	*/
	55	static int cm_t54_palmas_regulator_set(u8 vreg, u8 vval, u8 creg, u8 cval)
	56	{
	57	int err;
	58
	59	/* Setup voltage */
	60	err = palmas_i2c_write_u8(TWL603X_CHIP_P1, vreg, vval);
	61	if (err) {
	62	printf("cm_t54: could not set regulator 0x%02x voltage : %d\n",
	63	vreg, err);
	64	return err;
	65	}
	66
	67	/* Turn on/off regulator */
	68	err = palmas_i2c_write_u8(TWL603X_CHIP_P1, creg, cval);
	69	if (err) {
	70	printf("cm_t54: could not turn on/off regulator 0x%02x : %d\n",
	71	creg, err);
	72	return err;
	73	}
	74
	75	return 0;
	76	}
	77
1c8c36f5 DL	78	/*
	79	* Routine: mmc_get_env_part
	80	* Description: setup environment storage device partition.
	81	*/
	82	#ifdef CONFIG_SYS_MMC_ENV_PART
	83	uint mmc_get_env_part(struct mmc *mmc)
	84	{
60c7c30a	85	u32 bootmode = gd->arch.omap_boot_mode;
1c8c36f5 DL	86	uint bootpart = CONFIG_SYS_MMC_ENV_PART;
	87
	88	/*
	89	* If booted from eMMC boot partition then force eMMC
	90	* FIRST boot partition to be env storage
	91	*/
e1c9895c	92	if (bootmode == BOOT_DEVICE_MMC2)
1c8c36f5 DL	93	bootpart = 1;
	94
	95	return bootpart;
	96	}
	97	#endif
	98
4aa2ba3a	99	#if defined(CONFIG_MMC)
076446f1 DL	100	#define SB_T54_CD_GPIO 228
	101	#define SB_T54_WP_GPIO 229
	102
076446f1 DL	103	int board_mmc_init(bd_t *bis)
	104	{
	105	int ret0, ret1;
	106
0b03a931	107	ret0 = omap_mmc_init(0, 0, 0, SB_T54_CD_GPIO, SB_T54_WP_GPIO);
076446f1 DL	108	if (ret0)
	109	printf("cm_t54: failed to initialize mmc0\n");
	110
	111	ret1 = omap_mmc_init(1, 0, 0, -1, -1);
	112	if (ret1)
	113	printf("cm_t54: failed to initialize mmc1\n");
	114
	115	if (ret0 && ret1)
	116	return -1;
	117
	118	return 0;
	119	}
	120	#endif
	121
a9375f33 DL	122	#ifdef CONFIG_USB_HOST_ETHER
a9375f33 DL	123
e895a4b0	124	int ft_board_setup(void blob, bd_t bd)
a9375f33 DL	125	{
	126	uint8_t enetaddr[6];
	127
	128	/* MAC addr */
35affd7a	129	if (eth_env_get_enetaddr("usbethaddr", enetaddr)) {
a9375f33 DL	130	fdt_find_and_setprop(blob, "/smsc95xx@0", "mac-address",
	131	enetaddr, 6, 1);
	132	}
e895a4b0 SG	133
e895a4b0 SG	134	return 0;
a9375f33 DL	135	}
	136
	137	static void generate_mac_addr(uint8_t *enetaddr)
	138	{
	139	int reg;
	140
	141	reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;
	142
	143	/*
	144	* create a fake MAC address from the processor ID code.
	145	* first byte is 0x02 to signify locally administered.
	146	*/
	147	enetaddr[0] = 0x02;
	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;
	153	}
	154
	155	/*
	156	* Routine: handle_mac_address
	157	* Description: prepare MAC address for on-board Ethernet.
	158	*/
	159	static int handle_mac_address(void)
	160	{
	161	uint8_t enetaddr[6];
	162	int ret;
	163
35affd7a	164	ret = eth_env_get_enetaddr("usbethaddr", enetaddr);
a9375f33 DL	165	if (ret)
	166	return 0;
	167
e7a2447b	168	ret = cl_eeprom_read_mac_addr(enetaddr, CONFIG_SYS_I2C_EEPROM_BUS);
0adb5b76	169	if (ret \|\| !is_valid_ethaddr(enetaddr))
a9375f33 DL	170	generate_mac_addr(enetaddr);
a9375f33 DL	171
0adb5b76	172	if (!is_valid_ethaddr(enetaddr))
a9375f33 DL	173	return -1;
a9375f33 DL	174
fd1e959e	175	return eth_env_set_enetaddr("usbethaddr", enetaddr);
a9375f33 DL	176	}
	177
	178	int board_eth_init(bd_t *bis)
	179	{
	180	return handle_mac_address();
	181	}
	182	#endif
	183
8850c5d5	184	#ifdef CONFIG_USB_EHCI_HCD
076446f1 DL	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,
	189	};
	190
	191	static void setup_host_clocks(bool enable)
	192	{
	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;
	199
	200	int usbtll_clk = OPTFCLKEN_USB_CH1_CLK_ENABLE \|
	201	OPTFCLKEN_USB_CH2_CLK_ENABLE;
	202
	203	int usbhub_clk = CKOBUFFER_CLK_ENABLE_MASK;
	204
	205	if (enable) {
	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);
	212	} else {
	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);
	216	}
	217	}
	218
	219	int ehci_hcd_init(int index, enum usb_init_type init,
	220	struct ehci_hccr hccr, struct ehci_hcor hcor)
	221	{
	222	int ret;
	223
	224	/* VCC_3V3_ETH */
	225	cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_3V3, SMPS9_CTRL,
	226	SMPS_MODE_SLP_AUTO \| SMPS_MODE_ACT_AUTO);
	227
	228	setup_host_clocks(true);
	229
	230	ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
	231	if (ret < 0)
	232	printf("cm_t54: Failed to initialize ehci : %d\n", ret);
	233
	234	return ret;
	235	}
	236
	237	int ehci_hcd_stop(void)
	238	{
	239	int ret = omap_ehci_hcd_stop();
	240
	241	setup_host_clocks(false);
	242
	243	cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_OFF,
	244	SMPS9_CTRL, SMPS_MODE_SLP_AUTO);
	245
	246	return ret;
	247	}
	248
249	void usb_hub_reset_devices(int port)
250	{
251	/* The LAN9730 needs to be reset after the port power has been set. */
252	if (port == 3) {
253	gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
254	udelay(10);
255	gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);
256	}
257	}
258	#endif
259