[u-boot.git] / board / tqc / tqma6 / tqma6_mba6.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2012 Freescale Semiconductor, Inc.
 * Author: Fabio Estevam <[email protected]>
 *
 * Copyright (C) 2013, 2014 TQ Systems (ported SabreSD to TQMa6x)
 * Author: Markus Niebel <[email protected]>
 */

#include <init.h>
#include <net.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/sys_proto.h>
#include <linux/errno.h>
#include <asm/gpio.h>
#include <asm/mach-imx/mxc_i2c.h>

#include <common.h>
#include <fsl_esdhc_imx.h>
#include <linux/libfdt.h>
#include <malloc.h>
#include <i2c.h>
#include <micrel.h>
#include <miiphy.h>
#include <mmc.h>
#include <netdev.h>

#include "tqma6_bb.h"

#define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define USDHC_CLK_PAD_CTRL (PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW | \
	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW | \
	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define GPIO_OUT_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
	PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)

#define GPIO_IN_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
	PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)

#define SPI_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
	PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)

#define I2C_PAD_CTRL	(PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
	PAD_CTL_DSE_80ohm | PAD_CTL_HYS |			\
	PAD_CTL_ODE | PAD_CTL_SRE_FAST)

#if defined(CONFIG_TQMA6Q)

#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII	0x02e0790
#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM	0x02e07ac

#elif defined(CONFIG_TQMA6S) || defined(CONFIG_TQMA6DL)

#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII	0x02e0768
#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM	0x02e0788

#else

#error "need to select module"

#endif

/* disable on die termination for RGMII */
#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM_DISABLE	0x00000000
/* optimised drive strength for 1.0 .. 1.3 V signal on RGMII */
#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII_1P2V	0x00080000
/* optimised drive strength for 1.3 .. 2.5 V signal on RGMII */
#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII_1P5V	0x000C0000

static void mba6_setup_iomuxc_enet(void)
{
	struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;

	/* clear gpr1[ENET_CLK_SEL] for externel clock */
	clrbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);

	__raw_writel(IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM_DISABLE,
		     (void *)IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM);
	__raw_writel(IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII_1P5V,
		     (void *)IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII);
}

static iomux_v3_cfg_t const mba6_uart2_pads[] = {
	NEW_PAD_CTRL(MX6_PAD_SD4_DAT4__UART2_RX_DATA, UART_PAD_CTRL),
	NEW_PAD_CTRL(MX6_PAD_SD4_DAT7__UART2_TX_DATA, UART_PAD_CTRL),
};

static void mba6_setup_iomuxc_uart(void)
{
	imx_iomux_v3_setup_multiple_pads(mba6_uart2_pads,
					 ARRAY_SIZE(mba6_uart2_pads));
}

int board_mmc_get_env_dev(int devno)
{
	/*
	 * This assumes that the baseboard registered
	 * the boot device first ...
	 * Note: SDHC3 == idx2
	 */
	return (2 == devno) ? 0 : 1;
}

int board_phy_config(struct phy_device *phydev)
{
/*
 * optimized pad skew values depends on CPU variant on the TQMa6x module:
 * CONFIG_TQMA6Q: i.MX6Q/D
 * CONFIG_TQMA6S: i.MX6S
 * CONFIG_TQMA6DL: i.MX6DL
 */
#if defined(CONFIG_TQMA6Q)
#define MBA6X_KSZ9031_CTRL_SKEW	0x0032
#define MBA6X_KSZ9031_CLK_SKEW	0x03ff
#define MBA6X_KSZ9031_RX_SKEW	0x3333
#define MBA6X_KSZ9031_TX_SKEW	0x2036
#elif defined(CONFIG_TQMA6S) || defined(CONFIG_TQMA6DL)
#define MBA6X_KSZ9031_CTRL_SKEW	0x0030
#define MBA6X_KSZ9031_CLK_SKEW	0x03ff
#define MBA6X_KSZ9031_RX_SKEW	0x3333
#define MBA6X_KSZ9031_TX_SKEW	0x2052
#else
#error
#endif
	/* min rx/tx ctrl delay */
	ksz9031_phy_extended_write(phydev, 2,
				   MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
				   MII_KSZ9031_MOD_DATA_NO_POST_INC,
				   MBA6X_KSZ9031_CTRL_SKEW);
	/* min rx delay */
	ksz9031_phy_extended_write(phydev, 2,
				   MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
				   MII_KSZ9031_MOD_DATA_NO_POST_INC,
				   MBA6X_KSZ9031_RX_SKEW);
	/* max tx delay */
	ksz9031_phy_extended_write(phydev, 2,
				   MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
				   MII_KSZ9031_MOD_DATA_NO_POST_INC,
				   MBA6X_KSZ9031_TX_SKEW);
	/* rx/tx clk skew */
	ksz9031_phy_extended_write(phydev, 2,
				   MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
				   MII_KSZ9031_MOD_DATA_NO_POST_INC,
				   MBA6X_KSZ9031_CLK_SKEW);

	phydev->drv->config(phydev);

	return 0;
}

int tqma6_bb_board_early_init_f(void)
{
	mba6_setup_iomuxc_uart();

	return 0;
}

int tqma6_bb_board_init(void)
{
	mba6_setup_iomuxc_enet();

	return 0;
}

int tqma6_bb_board_late_init(void)
{
	return 0;
}

const char *tqma6_bb_get_boardname(void)
{
	return "MBa6x";
}

/*
 * Device Tree Support
 */
#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
void tqma6_bb_ft_board_setup(void *blob, bd_t *bd)
{
 /* TBD */
}
#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
cb07d74e MN	2	/*
	3	* Copyright (C) 2012 Freescale Semiconductor, Inc.
	4	* Author: Fabio Estevam <[email protected]>
	5	*
	6	* Copyright (C) 2013, 2014 TQ Systems (ported SabreSD to TQMa6x)
	7	* Author: Markus Niebel <[email protected]>
cb07d74e MN	8	*/
cb07d74e MN	9
5255932f	10	#include <init.h>
90526e9f	11	#include <net.h>
cb07d74e MN	12	#include <asm/io.h>
	13	#include <asm/arch/clock.h>
	14	#include <asm/arch/mx6-pins.h>
	15	#include <asm/arch/imx-regs.h>
	16	#include <asm/arch/iomux.h>
	17	#include <asm/arch/sys_proto.h>
1221ce45	18	#include <linux/errno.h>
cb07d74e	19	#include <asm/gpio.h>
552a848e	20	#include <asm/mach-imx/mxc_i2c.h>
cb07d74e MN	21
cb07d74e MN	22	#include <common.h>
e37ac717	23	#include <fsl_esdhc_imx.h>
b08c8c48	24	#include <linux/libfdt.h>
cb07d74e MN	25	#include <malloc.h>
	26	#include <i2c.h>
	27	#include <micrel.h>
	28	#include <miiphy.h>
	29	#include <mmc.h>
	30	#include <netdev.h>
	31
	32	#include "tqma6_bb.h"
	33
cb07d74e MN	34	#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP \| PAD_CTL_SPEED_MED \| \
	35	PAD_CTL_DSE_80ohm \| PAD_CTL_SRE_FAST \| PAD_CTL_HYS)
	36
	37	#define USDHC_CLK_PAD_CTRL (PAD_CTL_PUS_47K_UP \| PAD_CTL_SPEED_LOW \| \
	38	PAD_CTL_DSE_40ohm \| PAD_CTL_SRE_FAST \| PAD_CTL_HYS)
	39
	40	#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP \| PAD_CTL_SPEED_LOW \| \
	41	PAD_CTL_DSE_80ohm \| PAD_CTL_SRE_FAST \| PAD_CTL_HYS)
	42
	43	#define GPIO_OUT_PAD_CTRL (PAD_CTL_PUS_100K_UP \| PAD_CTL_SPEED_LOW \| \
	44	PAD_CTL_DSE_40ohm \| PAD_CTL_HYS)
	45
	46	#define GPIO_IN_PAD_CTRL (PAD_CTL_PUS_100K_UP \| PAD_CTL_SPEED_LOW \| \
	47	PAD_CTL_DSE_40ohm \| PAD_CTL_HYS)
	48
	49	#define SPI_PAD_CTRL (PAD_CTL_PUS_100K_UP \| PAD_CTL_SPEED_MED \| \
	50	PAD_CTL_DSE_80ohm \| PAD_CTL_SRE_FAST \| PAD_CTL_HYS)
	51
	52	#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP \| PAD_CTL_SPEED_MED \| \
03cfff0e	53	PAD_CTL_DSE_80ohm \| PAD_CTL_HYS \| \
cb07d74e MN	54	PAD_CTL_ODE \| PAD_CTL_SRE_FAST)
cb07d74e MN	55
d4b349e4	56	#if defined(CONFIG_TQMA6Q)
cb07d74e MN	57
	58	#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII 0x02e0790
	59	#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM 0x02e07ac
	60
468fb1e4	61	#elif defined(CONFIG_TQMA6S) \|\| defined(CONFIG_TQMA6DL)
cb07d74e MN	62
	63	#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII 0x02e0768
	64	#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM 0x02e0788
	65
	66	#else
	67
d4b349e4	68	#error "need to select module"
cb07d74e MN	69
	70	#endif
	71
cb07d74e MN	72	/* disable on die termination for RGMII */
	73	#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM_DISABLE 0x00000000
	74	/* optimised drive strength for 1.0 .. 1.3 V signal on RGMII */
	75	#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII_1P2V 0x00080000
	76	/* optimised drive strength for 1.3 .. 2.5 V signal on RGMII */
	77	#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII_1P5V 0x000C0000
	78
cb07d74e MN	79	static void mba6_setup_iomuxc_enet(void)
cb07d74e MN	80	{
4ba81176 MN	81	struct iomuxc const iomuxc_regs = (struct iomuxc )IOMUXC_BASE_ADDR;
	82
	83	/* clear gpr1[ENET_CLK_SEL] for externel clock */
	84	clrbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
	85
cb07d74e MN	86	__raw_writel(IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM_DISABLE,
	87	(void *)IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM);
	88	__raw_writel(IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII_1P5V,
	89	(void *)IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII);
cb07d74e MN	90	}
	91
	92	static iomux_v3_cfg_t const mba6_uart2_pads[] = {
	93	NEW_PAD_CTRL(MX6_PAD_SD4_DAT4__UART2_RX_DATA, UART_PAD_CTRL),
	94	NEW_PAD_CTRL(MX6_PAD_SD4_DAT7__UART2_TX_DATA, UART_PAD_CTRL),
	95	};
	96
	97	static void mba6_setup_iomuxc_uart(void)
	98	{
	99	imx_iomux_v3_setup_multiple_pads(mba6_uart2_pads,
	100	ARRAY_SIZE(mba6_uart2_pads));
	101	}
	102
8f660ba7	103	int board_mmc_get_env_dev(int devno)
cb07d74e	104	{
fd53ec5b	105	/*
8f660ba7 MK	106	* This assumes that the baseboard registered
	107	* the boot device first ...
	108	* Note: SDHC3 == idx2
fd53ec5b	109	*/
8f660ba7	110	return (2 == devno) ? 0 : 1;
cb07d74e MN	111	}
cb07d74e MN	112
cb07d74e MN	113	int board_phy_config(struct phy_device *phydev)
	114	{
	115	/*
	116	* optimized pad skew values depends on CPU variant on the TQMa6x module:
d4b349e4 MN	117	* CONFIG_TQMA6Q: i.MX6Q/D
d4b349e4 MN	118	* CONFIG_TQMA6S: i.MX6S
468fb1e4	119	* CONFIG_TQMA6DL: i.MX6DL
cb07d74e	120	*/
d4b349e4	121	#if defined(CONFIG_TQMA6Q)
cb07d74e MN	122	#define MBA6X_KSZ9031_CTRL_SKEW 0x0032
	123	#define MBA6X_KSZ9031_CLK_SKEW 0x03ff
	124	#define MBA6X_KSZ9031_RX_SKEW 0x3333
	125	#define MBA6X_KSZ9031_TX_SKEW 0x2036
468fb1e4	126	#elif defined(CONFIG_TQMA6S) \|\| defined(CONFIG_TQMA6DL)
cb07d74e MN	127	#define MBA6X_KSZ9031_CTRL_SKEW 0x0030
	128	#define MBA6X_KSZ9031_CLK_SKEW 0x03ff
	129	#define MBA6X_KSZ9031_RX_SKEW 0x3333
	130	#define MBA6X_KSZ9031_TX_SKEW 0x2052
	131	#else
	132	#error
	133	#endif
	134	/* min rx/tx ctrl delay */
	135	ksz9031_phy_extended_write(phydev, 2,
	136	MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
	137	MII_KSZ9031_MOD_DATA_NO_POST_INC,
	138	MBA6X_KSZ9031_CTRL_SKEW);
	139	/* min rx delay */
	140	ksz9031_phy_extended_write(phydev, 2,
	141	MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
	142	MII_KSZ9031_MOD_DATA_NO_POST_INC,
	143	MBA6X_KSZ9031_RX_SKEW);
	144	/* max tx delay */
	145	ksz9031_phy_extended_write(phydev, 2,
	146	MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
	147	MII_KSZ9031_MOD_DATA_NO_POST_INC,
	148	MBA6X_KSZ9031_TX_SKEW);
	149	/* rx/tx clk skew */
	150	ksz9031_phy_extended_write(phydev, 2,
	151	MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
	152	MII_KSZ9031_MOD_DATA_NO_POST_INC,
	153	MBA6X_KSZ9031_CLK_SKEW);
	154
	155	phydev->drv->config(phydev);
	156
	157	return 0;
	158	}
	159
cb07d74e MN	160	int tqma6_bb_board_early_init_f(void)
	161	{
	162	mba6_setup_iomuxc_uart();
	163
	164	return 0;
	165	}
	166
	167	int tqma6_bb_board_init(void)
	168	{
cb07d74e MN	169	mba6_setup_iomuxc_enet();
	170
	171	return 0;
	172	}
	173
	174	int tqma6_bb_board_late_init(void)
	175	{
	176	return 0;
	177	}
	178
	179	const char *tqma6_bb_get_boardname(void)
	180	{
	181	return "MBa6x";
	182	}
	183
	184	/*
	185	* Device Tree Support
	186	*/
	187	#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
	188	void tqma6_bb_ft_board_setup(void blob, bd_t bd)
	189	{
	190	/* TBD */
	191	}
	192	#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */