[people/ms/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 <lifshitz@compulab.co.il>
 *
 * 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_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);

	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_params.omap_bootmode;
	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_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
#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

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

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

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_getenv_enetaddr("usbethaddr", enetaddr);
	if (ret)
		return 0;

	ret = cl_eeprom_read_mac_addr(enetaddr);
	if (ret || !is_valid_ether_addr(enetaddr))
		generate_mac_addr(enetaddr);

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

	return eth_setenv_enetaddr("usbethaddr", enetaddr);
}

int board_eth_init(bd_t *bis)
{
	return handle_mac_address();
}
#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
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 <lifshitz@compulab.co.il>
	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)
	33	inline void set_muxconf_regs_essential(void){};
	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	{
	85	u32 bootmode = gd->arch.omap_boot_params.omap_bootmode;
	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
076446f1 DL	99	#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
	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
	123
	124	void ft_board_setup(void blob, bd_t bd)
	125	{
	126	uint8_t enetaddr[6];
	127
	128	/* MAC addr */
	129	if (eth_getenv_enetaddr("usbethaddr", enetaddr)) {
	130	fdt_find_and_setprop(blob, "/smsc95xx@0", "mac-address",
	131	enetaddr, 6, 1);
	132	}
	133	}
	134
	135	static void generate_mac_addr(uint8_t *enetaddr)
	136	{
	137	int reg;
	138
	139	reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;
	140
	141	/*
	142	* create a fake MAC address from the processor ID code.
	143	* first byte is 0x02 to signify locally administered.
	144	*/
	145	enetaddr[0] = 0x02;
	146	enetaddr[1] = readl(reg + 0x10) & 0xff;
	147	enetaddr[2] = readl(reg + 0xC) & 0xff;
	148	enetaddr[3] = readl(reg + 0x8) & 0xff;
	149	enetaddr[4] = readl(reg) & 0xff;
	150	enetaddr[5] = (readl(reg) >> 8) & 0xff;
	151	}
	152
	153	/*
	154	* Routine: handle_mac_address
	155	* Description: prepare MAC address for on-board Ethernet.
	156	*/
	157	static int handle_mac_address(void)
	158	{
	159	uint8_t enetaddr[6];
	160	int ret;
	161
	162	ret = eth_getenv_enetaddr("usbethaddr", enetaddr);
	163	if (ret)
	164	return 0;
	165
	166	ret = cl_eeprom_read_mac_addr(enetaddr);
91c9885e	167	if (ret \|\| !is_valid_ether_addr(enetaddr))
a9375f33 DL	168	generate_mac_addr(enetaddr);
	169
	170	if (!is_valid_ether_addr(enetaddr))
	171	return -1;
	172
	173	return eth_setenv_enetaddr("usbethaddr", enetaddr);
	174	}
	175
	176	int board_eth_init(bd_t *bis)
	177	{
	178	return handle_mac_address();
	179	}
	180	#endif
	181
076446f1 DL	182	#ifdef CONFIG_USB_EHCI
	183	static struct omap_usbhs_board_data usbhs_bdata = {
	184	.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
	185	.port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC,
	186	.port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC,
	187	};
	188
	189	static void setup_host_clocks(bool enable)
	190	{
	191	int usbhost_clk = OPTFCLKEN_HSIC60M_P3_CLK \|
	192	OPTFCLKEN_HSIC480M_P3_CLK \|
	193	OPTFCLKEN_HSIC60M_P2_CLK \|
	194	OPTFCLKEN_HSIC480M_P2_CLK \|
	195	OPTFCLKEN_UTMI_P3_CLK \|
	196	OPTFCLKEN_UTMI_P2_CLK;
	197
	198	int usbtll_clk = OPTFCLKEN_USB_CH1_CLK_ENABLE \|
	199	OPTFCLKEN_USB_CH2_CLK_ENABLE;
	200
	201	int usbhub_clk = CKOBUFFER_CLK_ENABLE_MASK;
	202
	203	if (enable) {
	204	/* Enable port 2 and 3 clocks*/
	205	setbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, usbhost_clk);
	206	/* Enable port 2 and 3 usb host ports tll clocks*/
	207	setbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl, usbtll_clk);
	208	/* Request FREF_XTAL_CLK clock for HSIC USB Hub */
	209	setbits_le32((*ctrl)->control_ckobuffer, usbhub_clk);
	210	} else {
	211	clrbits_le32((*ctrl)->control_ckobuffer, usbhub_clk);
	212	clrbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl, usbtll_clk);
	213	clrbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, usbhost_clk);
	214	}
	215	}
	216
	217	int ehci_hcd_init(int index, enum usb_init_type init,
	218	struct ehci_hccr hccr, struct ehci_hcor hcor)
	219	{
	220	int ret;
	221
	222	/* VCC_3V3_ETH */
	223	cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_3V3, SMPS9_CTRL,
	224	SMPS_MODE_SLP_AUTO \| SMPS_MODE_ACT_AUTO);
	225
	226	setup_host_clocks(true);
	227
	228	ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
	229	if (ret < 0)
	230	printf("cm_t54: Failed to initialize ehci : %d\n", ret);
	231
	232	return ret;
	233	}
	234
	235	int ehci_hcd_stop(void)
	236	{
	237	int ret = omap_ehci_hcd_stop();
	238
	239	setup_host_clocks(false);
	240
	241	cm_t54_palmas_regulator_set(SMPS9_VOLTAGE, SMPS_VOLT_OFF,
	242	SMPS9_CTRL, SMPS_MODE_SLP_AUTO);
	243
	244	return ret;
	245	}
246
247	void usb_hub_reset_devices(int port)
248	{
249	/* The LAN9730 needs to be reset after the port power has been set. */
250	if (port == 3) {
251	gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
252	udelay(10);
253	gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);
254	}
255	}
256	#endif
257