[u-boot.git] / board / theadorable / theadorable.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2015-2019 Stefan Roese <[email protected]>
 */

#include <common.h>
#include <console.h>
#include <i2c.h>
#include <pci.h>
#if !defined(CONFIG_SPL_BUILD)
#include <bootcount.h>
#endif
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
#include <linux/crc8.h>
#include <linux/mbus.h>
#ifdef CONFIG_NET
#include <netdev.h>
#endif
#include "theadorable.h"

#include "../drivers/ddr/marvell/axp/ddr3_hw_training.h"
#include "../arch/arm/mach-mvebu/serdes/axp/high_speed_env_spec.h"

DECLARE_GLOBAL_DATA_PTR;

#define MV_USB_PHY_BASE			(MVEBU_AXP_USB_BASE + 0x800)
#define PHY_CHANNEL_RX_CTRL0_REG(port, chan) \
	(MV_USB_PHY_BASE + ((port) << 12) + ((chan) << 6) + 0x8)

#define THEADORABLE_GPP_OUT_ENA_LOW	0x00336780
#define THEADORABLE_GPP_OUT_ENA_MID	0x00003cf0
#define THEADORABLE_GPP_OUT_ENA_HIGH	(~(0x0))

#define THEADORABLE_GPP_OUT_VAL_LOW	0x2c0c983f
#define THEADORABLE_GPP_OUT_VAL_MID	0x0007000c
#define THEADORABLE_GPP_OUT_VAL_HIGH	0x00000000

#define GPIO_USB0_PWR_ON		18
#define GPIO_USB1_PWR_ON		19

#define PEX_SWITCH_NOT_FOUNT_LIMIT	3

#define STM_I2C_BUS	1
#define STM_I2C_ADDR	0x27
#define REBOOT_DELAY	1000		/* reboot-delay in ms */
#define ABORT_TIMEOUT	3000		/* 3 seconds reboot abort timeout */

/* DDR3 static configuration */
static MV_DRAM_MC_INIT ddr3_theadorable[MV_MAX_DDR3_STATIC_SIZE] = {
	{0x00001400, 0x7301ca28},	/* DDR SDRAM Configuration Register */
	{0x00001404, 0x30000800},	/* Dunit Control Low Register */
	{0x00001408, 0x44149887},	/* DDR SDRAM Timing (Low) Register */
	{0x0000140C, 0x38d93fc7},	/* DDR SDRAM Timing (High) Register */
	{0x00001410, 0x1b100001},	/* DDR SDRAM Address Control Register */
	{0x00001424, 0x0000f3ff},	/* Dunit Control High Register */
	{0x00001428, 0x000f8830},	/* ODT Timing (Low) Register */
	{0x0000142C, 0x014c50f4},	/* DDR3 Timing Register */
	{0x0000147C, 0x0000c671},	/* ODT Timing (High) Register */

	{0x00001494, 0x00010000},	/* DDR SDRAM ODT Control (Low) Reg */
	{0x0000149C, 0x00000001},	/* DDR Dunit ODT Control Register */
	{0x000014A0, 0x00000001},	/* DRAM FIFO Control Register */
	{0x000014A8, 0x00000101},	/* AXI Control Register */

	/*
	 * DO NOT Modify - Open Mbus Window - 2G - Mbus is required for the
	 * training sequence
	 */
	{0x000200e8, 0x3fff0e01},
	{0x00020184, 0x3fffffe0},	/* Close fast path Window to - 2G */

	{0x0001504, 0x7fffffe1},	/* CS0 Size */
	{0x000150C, 0x00000000},	/* CS1 Size */
	{0x0001514, 0x00000000},	/* CS2 Size */
	{0x000151C, 0x00000000},	/* CS3 Size */

	{0x00020220, 0x00000007},	/* Reserved */

	{0x00001538, 0x00000009},	/* Read Data Sample Delays Register */
	{0x0000153C, 0x00000009},	/* Read Data Ready Delay Register */

	{0x000015D0, 0x00000650},	/* MR0 */
	{0x000015D4, 0x00000044},	/* MR1 */
	{0x000015D8, 0x00000010},	/* MR2 */
	{0x000015DC, 0x00000000},	/* MR3 */
	{0x000015E0, 0x00000001},
	{0x000015E4, 0x00203c18},	/* ZQDS Configuration Register */
	{0x000015EC, 0xf800a225},	/* DDR PHY */

	/* Recommended Settings from Marvell for 4 x 16 bit devices: */
	{0x000014C0, 0x192424c9},	/* DRAM addr and Ctrl Driving Strenght*/
	{0x000014C4, 0x0aaa24c9},	/* DRAM Data and DQS Driving Strenght */

	{0x0, 0x0}
};

static MV_DRAM_MODES board_ddr_modes[MV_DDR3_MODES_NUMBER] = {
	{"theadorable_1333-667", 0x3, 0x5, 0x0, A0, ddr3_theadorable,  NULL},
};

extern MV_SERDES_CHANGE_M_PHY serdes_change_m_phy[];

/*
 * Lane0 - PCIE0.0 X1 (to WIFI Module)
 * Lane5 - SATA0
 * Lane6 - SATA1
 * Lane7 - SGMII0 (to Ethernet Phy)
 * Lane8-11 - PCIE2.0 X4 (to PEX Switch)
 * all other lanes are disabled
 */
MV_BIN_SERDES_CFG theadorable_serdes_cfg[] = {
	{ MV_PEX_ROOT_COMPLEX, 0x22200001, 0x00001111,
	  { PEX_BUS_MODE_X1, PEX_BUS_DISABLED, PEX_BUS_MODE_X4,
	    PEX_BUS_DISABLED },
	  0x0060, serdes_change_m_phy
	},
};

/*
 * Define a board-specific detection pulse-width array for the SerDes PCIe
 * interfaces. If not defined in the board code, the default of currently 2
 * is used. Values from 0...3 are possible (2 bits).
 */
u8 serdes_pex_pulse_width[4] = { 0, 2, 2, 2 };

MV_DRAM_MODES *ddr3_get_static_ddr_mode(void)
{
	/* Only one mode supported for this board */
	return &board_ddr_modes[0];
}

MV_BIN_SERDES_CFG *board_serdes_cfg_get(u8 pex_mode)
{
	return &theadorable_serdes_cfg[0];
}

u8 board_sat_r_get(u8 dev_num, u8 reg)
{
	/* Bit 0 enables PCI 2.0 link capabilities instead of PCI 1.x */
	return 0x01;
}

int board_early_init_f(void)
{
	/* Configure MPP */
	writel(0x00000000, MVEBU_MPP_BASE + 0x00);
	writel(0x03300000, MVEBU_MPP_BASE + 0x04);
	writel(0x00000033, MVEBU_MPP_BASE + 0x08);
	writel(0x00000000, MVEBU_MPP_BASE + 0x0c);
	writel(0x11110000, MVEBU_MPP_BASE + 0x10);
	writel(0x00221100, MVEBU_MPP_BASE + 0x14);
	writel(0x00000000, MVEBU_MPP_BASE + 0x18);
	writel(0x00000000, MVEBU_MPP_BASE + 0x1c);
	writel(0x00000000, MVEBU_MPP_BASE + 0x20);

	/* Configure GPIO */
	writel(THEADORABLE_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
	writel(THEADORABLE_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
	writel(THEADORABLE_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
	writel(THEADORABLE_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
	writel(THEADORABLE_GPP_OUT_VAL_HIGH, MVEBU_GPIO2_BASE + 0x00);
	writel(THEADORABLE_GPP_OUT_ENA_HIGH, MVEBU_GPIO2_BASE + 0x04);

	return 0;
}

int board_init(void)
{
	int ret;

	/* adress of boot parameters */
	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;

	/*
	 * Map SPI devices via MBUS so that they can be accessed via
	 * the SPI direct access mode
	 */
	mbus_dt_setup_win(&mbus_state, SPI_BUS0_DEV1_BASE, SPI_BUS0_DEV1_SIZE,
			  CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_SPI0_CS1);
	mbus_dt_setup_win(&mbus_state, SPI_BUS1_DEV2_BASE, SPI_BUS0_DEV1_SIZE,
			  CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_SPI1_CS2);

	/*
	 * Set RX Channel Control 0 Register:
	 * Tests have shown, that setting the LPF_COEF from 0 (1/8)
	 * to 3 (1/1) results in a more stable USB connection.
	 */
	setbits_le32(PHY_CHANNEL_RX_CTRL0_REG(0, 1), 0xc);
	setbits_le32(PHY_CHANNEL_RX_CTRL0_REG(0, 2), 0xc);
	setbits_le32(PHY_CHANNEL_RX_CTRL0_REG(0, 3), 0xc);

	/* Toggle USB power */
	ret = gpio_request(GPIO_USB0_PWR_ON, "USB0_PWR_ON");
	if (ret < 0)
		return ret;
	gpio_direction_output(GPIO_USB0_PWR_ON, 0);
	ret = gpio_request(GPIO_USB1_PWR_ON, "USB1_PWR_ON");
	if (ret < 0)
		return ret;
	gpio_direction_output(GPIO_USB1_PWR_ON, 0);
	mdelay(1);
	gpio_set_value(GPIO_USB0_PWR_ON, 1);
	gpio_set_value(GPIO_USB1_PWR_ON, 1);

	return 0;
}

int checkboard(void)
{
	board_fpga_add();

	return 0;
}

#ifdef CONFIG_NET
int board_eth_init(bd_t *bis)
{
	cpu_eth_init(bis); /* Built in controller(s) come first */
	return pci_eth_init(bis);
}
#endif

#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_BOARD_LATE_INIT)
int board_late_init(void)
{
	pci_dev_t bdf;
	ulong bootcount;

	/*
	 * Check if the PEX switch is detected (somtimes its not available
	 * on the PCIe bus). In this case, try to recover by issuing a
	 * soft-reset or even a power-cycle, depending on the bootcounter
	 * value.
	 */
	bdf = pci_find_device(PCI_VENDOR_ID_PLX, 0x8619, 0);
	if (bdf == -1) {
		unsigned long start_time = get_timer(0);
		u8 i2c_buf[8];
		int ret;

		/* PEX switch not found! */
		bootcount = bootcount_load();
		printf("Failed to find PLX PEX-switch (bootcount=%ld)\n",
		       bootcount);

		/*
		 * The user can exit this boot-loop in the error case by
		 * hitting Ctrl-C. So wait some time for this key here.
		 */
		printf("Continue booting with Ctrl-C, otherwise rebooting\n");
		do {
			/* Handle control-c and timeouts */
			if (ctrlc()) {
				printf("PEX error boot-loop aborted!\n");
				return 0;
			}
		} while (get_timer(start_time) < ABORT_TIMEOUT);


		/*
		 * At this stage the bootcounter has not been incremented
		 * yet. We need to do this manually here to get an actually
		 * working bootcounter in this error case.
		 */
		bootcount_inc();

		if (bootcount > PEX_SWITCH_NOT_FOUNT_LIMIT) {
			printf("Issuing power-switch via uC!\n");

			printf("Issuing power-switch via uC!\n");
			i2c_set_bus_num(STM_I2C_BUS);
			i2c_buf[0] = STM_I2C_ADDR << 1;
			i2c_buf[1] = 0xc5;	/* cmd */
			i2c_buf[2] = 0x01;	/* enable */
			/* Delay before reboot */
			i2c_buf[3] = REBOOT_DELAY & 0x00ff;
			i2c_buf[4] = (REBOOT_DELAY & 0xff00) >> 8;
			/* Delay before shutdown */
			i2c_buf[5] = 0x00;
			i2c_buf[6] = 0x00;
			i2c_buf[7] = crc8(0x72, &i2c_buf[0], 7);

			ret = i2c_write(STM_I2C_ADDR, 0, 0, &i2c_buf[1], 7);
			if (ret) {
				printf("I2C write error (ret=%d)\n", ret);
				printf("Issuing soft-reset...\n");
				/* default handling: SOFT reset */
				do_reset(NULL, 0, 0, NULL);
			}

			/* Wait for power-cycle to occur... */
			printf("Waiting for power-cycle via uC...\n");
			while (1)
				;
		} else {
			printf("Issuing soft-reset...\n");
			/* default handling: SOFT reset */
			do_reset(NULL, 0, 0, NULL);
		}
	}

	return 0;
}
#endif

#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_PCI)
int do_pcie_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	pci_dev_t bdf;
	u16 ven_id, dev_id;

	if (argc != 3)
		return cmd_usage(cmdtp);

	ven_id = simple_strtoul(argv[1], NULL, 16);
	dev_id = simple_strtoul(argv[2], NULL, 16);

	printf("Checking for PCIe device: VendorID 0x%04x, DeviceId 0x%04x\n",
	       ven_id, dev_id);

	/*
	 * Check if the PCIe device is detected (somtimes its not available
	 * on the PCIe bus)
	 */
	bdf = pci_find_device(ven_id, dev_id, 0);
	if (bdf == -1) {
		/* PCIe device not found! */
		printf("Failed to find PCIe device\n");
	} else {
		/* PCIe device found! */
		printf("PCIe device found, resetting board...\n");

		/* default handling: SOFT reset */
		do_reset(NULL, 0, 0, NULL);
	}

	return 0;
}

U_BOOT_CMD(
	pcie,   3,   0,     do_pcie_test,
	"Test for presence of a PCIe device",
	"<VendorID> <DeviceID>"
);
#endif
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
b20c38a9	2	/*
54055ff7	3	* Copyright (C) 2015-2019 Stefan Roese <[email protected]>
b20c38a9 SR	4	*/
	5
	6	#include <common.h>
54055ff7	7	#include <console.h>
169a8550 SR	8	#include <i2c.h>
169a8550 SR	9	#include <pci.h>
54055ff7 SR	10	#if !defined(CONFIG_SPL_BUILD)
	11	#include <bootcount.h>
	12	#endif
ced0d849	13	#include <asm/gpio.h>
b20c38a9 SR	14	#include <asm/io.h>
	15	#include <asm/arch/cpu.h>
	16	#include <asm/arch/soc.h>
169a8550	17	#include <linux/crc8.h>
aea02abe	18	#include <linux/mbus.h>
b20c38a9 SR	19	#ifdef CONFIG_NET
	20	#include <netdev.h>
	21	#endif
aea02abe	22	#include "theadorable.h"
b20c38a9 SR	23
	24	#include "../drivers/ddr/marvell/axp/ddr3_hw_training.h"
	25	#include "../arch/arm/mach-mvebu/serdes/axp/high_speed_env_spec.h"
	26
	27	DECLARE_GLOBAL_DATA_PTR;
	28
ced0d849 SR	29	#define MV_USB_PHY_BASE (MVEBU_AXP_USB_BASE + 0x800)
	30	#define PHY_CHANNEL_RX_CTRL0_REG(port, chan) \
	31	(MV_USB_PHY_BASE + ((port) << 12) + ((chan) << 6) + 0x8)
	32
b20c38a9 SR	33	#define THEADORABLE_GPP_OUT_ENA_LOW 0x00336780
	34	#define THEADORABLE_GPP_OUT_ENA_MID 0x00003cf0
	35	#define THEADORABLE_GPP_OUT_ENA_HIGH (~(0x0))
	36
	37	#define THEADORABLE_GPP_OUT_VAL_LOW 0x2c0c983f
	38	#define THEADORABLE_GPP_OUT_VAL_MID 0x0007000c
	39	#define THEADORABLE_GPP_OUT_VAL_HIGH 0x00000000
	40
ced0d849 SR	41	#define GPIO_USB0_PWR_ON 18
	42	#define GPIO_USB1_PWR_ON 19
	43
169a8550 SR	44	#define PEX_SWITCH_NOT_FOUNT_LIMIT 3
	45
	46	#define STM_I2C_BUS 1
	47	#define STM_I2C_ADDR 0x27
	48	#define REBOOT_DELAY 1000 /* reboot-delay in ms */
54055ff7	49	#define ABORT_TIMEOUT 3000 /* 3 seconds reboot abort timeout */
169a8550	50
b20c38a9 SR	51	/* DDR3 static configuration */
	52	static MV_DRAM_MC_INIT ddr3_theadorable[MV_MAX_DDR3_STATIC_SIZE] = {
	53	{0x00001400, 0x7301ca28}, /* DDR SDRAM Configuration Register */
	54	{0x00001404, 0x30000800}, /* Dunit Control Low Register */
	55	{0x00001408, 0x44149887}, /* DDR SDRAM Timing (Low) Register */
	56	{0x0000140C, 0x38d93fc7}, /* DDR SDRAM Timing (High) Register */
	57	{0x00001410, 0x1b100001}, /* DDR SDRAM Address Control Register */
	58	{0x00001424, 0x0000f3ff}, /* Dunit Control High Register */
	59	{0x00001428, 0x000f8830}, /* ODT Timing (Low) Register */
	60	{0x0000142C, 0x014c50f4}, /* DDR3 Timing Register */
	61	{0x0000147C, 0x0000c671}, /* ODT Timing (High) Register */
	62
	63	{0x00001494, 0x00010000}, /* DDR SDRAM ODT Control (Low) Reg */
	64	{0x0000149C, 0x00000001}, /* DDR Dunit ODT Control Register */
	65	{0x000014A0, 0x00000001}, /* DRAM FIFO Control Register */
	66	{0x000014A8, 0x00000101}, /* AXI Control Register */
	67
	68	/*
	69	* DO NOT Modify - Open Mbus Window - 2G - Mbus is required for the
	70	* training sequence
	71	*/
	72	{0x000200e8, 0x3fff0e01},
	73	{0x00020184, 0x3fffffe0}, /* Close fast path Window to - 2G */
	74
	75	{0x0001504, 0x7fffffe1}, /* CS0 Size */
	76	{0x000150C, 0x00000000}, /* CS1 Size */
	77	{0x0001514, 0x00000000}, /* CS2 Size */
	78	{0x000151C, 0x00000000}, /* CS3 Size */
	79
	80	{0x00020220, 0x00000007}, /* Reserved */
	81
	82	{0x00001538, 0x00000009}, /* Read Data Sample Delays Register */
	83	{0x0000153C, 0x00000009}, /* Read Data Ready Delay Register */
	84
	85	{0x000015D0, 0x00000650}, /* MR0 */
	86	{0x000015D4, 0x00000044}, /* MR1 */
	87	{0x000015D8, 0x00000010}, /* MR2 */
	88	{0x000015DC, 0x00000000}, /* MR3 */
	89	{0x000015E0, 0x00000001},
	90	{0x000015E4, 0x00203c18}, /* ZQDS Configuration Register */
	91	{0x000015EC, 0xf800a225}, /* DDR PHY */
	92
	93	/* Recommended Settings from Marvell for 4 x 16 bit devices: */
	94	{0x000014C0, 0x192424c9}, /* DRAM addr and Ctrl Driving Strenght*/
	95	{0x000014C4, 0x0aaa24c9}, /* DRAM Data and DQS Driving Strenght */
	96
	97	{0x0, 0x0}
	98	};
	99
	100	static MV_DRAM_MODES board_ddr_modes[MV_DDR3_MODES_NUMBER] = {
	101	{"theadorable_1333-667", 0x3, 0x5, 0x0, A0, ddr3_theadorable, NULL},
	102	};
	103
	104	extern MV_SERDES_CHANGE_M_PHY serdes_change_m_phy[];
	105
	106	/*
	107	* Lane0 - PCIE0.0 X1 (to WIFI Module)
	108	* Lane5 - SATA0
	109	* Lane6 - SATA1
	110	* Lane7 - SGMII0 (to Ethernet Phy)
	111	* Lane8-11 - PCIE2.0 X4 (to PEX Switch)
	112	* all other lanes are disabled
	113	*/
	114	MV_BIN_SERDES_CFG theadorable_serdes_cfg[] = {
115	{ MV_PEX_ROOT_COMPLEX, 0x22200001, 0x00001111,
116	{ PEX_BUS_MODE_X1, PEX_BUS_DISABLED, PEX_BUS_MODE_X4,
117	PEX_BUS_DISABLED },
118	0x0060, serdes_change_m_phy
119	},
120	};
121
1304f4bb SR	122	/*
	123	* Define a board-specific detection pulse-width array for the SerDes PCIe
	124	* interfaces. If not defined in the board code, the default of currently 2
	125	* is used. Values from 0...3 are possible (2 bits).
	126	*/
	127	u8 serdes_pex_pulse_width[4] = { 0, 2, 2, 2 };
	128
b20c38a9 SR	129	MV_DRAM_MODES *ddr3_get_static_ddr_mode(void)
	130	{
	131	/* Only one mode supported for this board */
	132	return &board_ddr_modes[0];
	133	}
	134
	135	MV_BIN_SERDES_CFG *board_serdes_cfg_get(u8 pex_mode)
	136	{
	137	return &theadorable_serdes_cfg[0];
	138	}
	139
9ed00b07 SR	140	u8 board_sat_r_get(u8 dev_num, u8 reg)
	141	{
	142	/* Bit 0 enables PCI 2.0 link capabilities instead of PCI 1.x */
	143	return 0x01;
	144	}
	145
b20c38a9 SR	146	int board_early_init_f(void)
	147	{
	148	/* Configure MPP */
	149	writel(0x00000000, MVEBU_MPP_BASE + 0x00);
	150	writel(0x03300000, MVEBU_MPP_BASE + 0x04);
	151	writel(0x00000033, MVEBU_MPP_BASE + 0x08);
	152	writel(0x00000000, MVEBU_MPP_BASE + 0x0c);
	153	writel(0x11110000, MVEBU_MPP_BASE + 0x10);
	154	writel(0x00221100, MVEBU_MPP_BASE + 0x14);
	155	writel(0x00000000, MVEBU_MPP_BASE + 0x18);
	156	writel(0x00000000, MVEBU_MPP_BASE + 0x1c);
	157	writel(0x00000000, MVEBU_MPP_BASE + 0x20);
	158
	159	/* Configure GPIO */
	160	writel(THEADORABLE_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
	161	writel(THEADORABLE_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
	162	writel(THEADORABLE_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
	163	writel(THEADORABLE_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
	164	writel(THEADORABLE_GPP_OUT_VAL_HIGH, MVEBU_GPIO2_BASE + 0x00);
	165	writel(THEADORABLE_GPP_OUT_ENA_HIGH, MVEBU_GPIO2_BASE + 0x04);
	166
	167	return 0;
	168	}
	169
	170	int board_init(void)
	171	{
ced0d849 SR	172	int ret;
ced0d849 SR	173
b20c38a9 SR	174	/* adress of boot parameters */
	175	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
	176
aea02abe SR	177	/*
	178	* Map SPI devices via MBUS so that they can be accessed via
	179	* the SPI direct access mode
	180	*/
	181	mbus_dt_setup_win(&mbus_state, SPI_BUS0_DEV1_BASE, SPI_BUS0_DEV1_SIZE,
	182	CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_SPI0_CS1);
	183	mbus_dt_setup_win(&mbus_state, SPI_BUS1_DEV2_BASE, SPI_BUS0_DEV1_SIZE,
	184	CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_SPI1_CS2);
	185
ced0d849 SR	186	/*
	187	* Set RX Channel Control 0 Register:
	188	* Tests have shown, that setting the LPF_COEF from 0 (1/8)
	189	* to 3 (1/1) results in a more stable USB connection.
	190	*/
	191	setbits_le32(PHY_CHANNEL_RX_CTRL0_REG(0, 1), 0xc);
	192	setbits_le32(PHY_CHANNEL_RX_CTRL0_REG(0, 2), 0xc);
	193	setbits_le32(PHY_CHANNEL_RX_CTRL0_REG(0, 3), 0xc);
	194
	195	/* Toggle USB power */
	196	ret = gpio_request(GPIO_USB0_PWR_ON, "USB0_PWR_ON");
	197	if (ret < 0)
	198	return ret;
	199	gpio_direction_output(GPIO_USB0_PWR_ON, 0);
	200	ret = gpio_request(GPIO_USB1_PWR_ON, "USB1_PWR_ON");
	201	if (ret < 0)
	202	return ret;
	203	gpio_direction_output(GPIO_USB1_PWR_ON, 0);
	204	mdelay(1);
	205	gpio_set_value(GPIO_USB0_PWR_ON, 1);
	206	gpio_set_value(GPIO_USB1_PWR_ON, 1);
	207
b20c38a9 SR	208	return 0;
	209	}
	210
	211	int checkboard(void)
	212	{
aea02abe SR	213	board_fpga_add();
aea02abe SR	214
b20c38a9 SR	215	return 0;
	216	}
	217
	218	#ifdef CONFIG_NET
	219	int board_eth_init(bd_t *bis)
	220	{
	221	cpu_eth_init(bis); /* Built in controller(s) come first */
	222	return pci_eth_init(bis);
	223	}
	224	#endif
	225
54055ff7	226	#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_BOARD_LATE_INIT)
169a8550 SR	227	int board_late_init(void)
	228	{
	229	pci_dev_t bdf;
	230	ulong bootcount;
	231
	232	/*
	233	* Check if the PEX switch is detected (somtimes its not available
	234	* on the PCIe bus). In this case, try to recover by issuing a
	235	* soft-reset or even a power-cycle, depending on the bootcounter
	236	* value.
	237	*/
	238	bdf = pci_find_device(PCI_VENDOR_ID_PLX, 0x8619, 0);
	239	if (bdf == -1) {
54055ff7	240	unsigned long start_time = get_timer(0);
169a8550 SR	241	u8 i2c_buf[8];
	242	int ret;
	243
	244	/* PEX switch not found! */
	245	bootcount = bootcount_load();
	246	printf("Failed to find PLX PEX-switch (bootcount=%ld)\n",
	247	bootcount);
54055ff7 SR	248
	249	/*
	250	* The user can exit this boot-loop in the error case by
	251	* hitting Ctrl-C. So wait some time for this key here.
	252	*/
	253	printf("Continue booting with Ctrl-C, otherwise rebooting\n");
	254	do {
	255	/* Handle control-c and timeouts */
	256	if (ctrlc()) {
	257	printf("PEX error boot-loop aborted!\n");
	258	return 0;
	259	}
	260	} while (get_timer(start_time) < ABORT_TIMEOUT);
	261
	262
	263	/*
	264	* At this stage the bootcounter has not been incremented
	265	* yet. We need to do this manually here to get an actually
	266	* working bootcounter in this error case.
	267	*/
	268	bootcount_inc();
	269
169a8550 SR	270	if (bootcount > PEX_SWITCH_NOT_FOUNT_LIMIT) {
	271	printf("Issuing power-switch via uC!\n");
	272
	273	printf("Issuing power-switch via uC!\n");
	274	i2c_set_bus_num(STM_I2C_BUS);
	275	i2c_buf[0] = STM_I2C_ADDR << 1;
	276	i2c_buf[1] = 0xc5; /* cmd */
	277	i2c_buf[2] = 0x01; /* enable */
	278	/* Delay before reboot */
	279	i2c_buf[3] = REBOOT_DELAY & 0x00ff;
	280	i2c_buf[4] = (REBOOT_DELAY & 0xff00) >> 8;
	281	/* Delay before shutdown */
	282	i2c_buf[5] = 0x00;
	283	i2c_buf[6] = 0x00;
	284	i2c_buf[7] = crc8(0x72, &i2c_buf[0], 7);
	285
	286	ret = i2c_write(STM_I2C_ADDR, 0, 0, &i2c_buf[1], 7);
	287	if (ret) {
	288	printf("I2C write error (ret=%d)\n", ret);
	289	printf("Issuing soft-reset...\n");
	290	/* default handling: SOFT reset */
	291	do_reset(NULL, 0, 0, NULL);
	292	}
	293
	294	/* Wait for power-cycle to occur... */
	295	printf("Waiting for power-cycle via uC...\n");
	296	while (1)
	297	;
	298	} else {
	299	printf("Issuing soft-reset...\n");
	300	/* default handling: SOFT reset */
	301	do_reset(NULL, 0, 0, NULL);
	302	}
	303	}
	304
	305	return 0;
	306	}
	307	#endif
1ec2a80b SR	308
	309	#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_PCI)
	310	int do_pcie_test(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	311	{
	312	pci_dev_t bdf;
	313	u16 ven_id, dev_id;
	314
	315	if (argc != 3)
	316	return cmd_usage(cmdtp);
	317
	318	ven_id = simple_strtoul(argv[1], NULL, 16);
	319	dev_id = simple_strtoul(argv[2], NULL, 16);
	320
	321	printf("Checking for PCIe device: VendorID 0x%04x, DeviceId 0x%04x\n",
	322	ven_id, dev_id);
	323
	324	/*
	325	* Check if the PCIe device is detected (somtimes its not available
	326	* on the PCIe bus)
	327	*/
	328	bdf = pci_find_device(ven_id, dev_id, 0);
	329	if (bdf == -1) {
	330	/* PCIe device not found! */
	331	printf("Failed to find PCIe device\n");
	332	} else {
	333	/* PCIe device found! */
	334	printf("PCIe device found, resetting board...\n");
	335
	336	/* default handling: SOFT reset */
	337	do_reset(NULL, 0, 0, NULL);
	338	}
	339
	340	return 0;
	341	}
	342
	343	U_BOOT_CMD(
	344	pcie, 3, 0, do_pcie_test,
	345	"Test for presence of a PCIe device",
	346	"<VendorID> <DeviceID>"
	347	);
	348	#endif