diff options
Diffstat (limited to 'board/tq/tqma6/tqma6_mba6.c')
| -rw-r--r-- | board/tq/tqma6/tqma6_mba6.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/board/tq/tqma6/tqma6_mba6.c b/board/tq/tqma6/tqma6_mba6.c new file mode 100644 index 0000000000..52851dd5b5 --- /dev/null +++ b/board/tq/tqma6/tqma6_mba6.c @@ -0,0 +1,193 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2012 Freescale Semiconductor, Inc. + * Author: Fabio Estevam <fabio.estevam@freescale.com> + * + * Copyright (C) 2013, 2014 TQ-Systems (ported SabreSD to TQMa6x) + * Author: Markus Niebel <markus.niebel@tq-group.com> + */ + +#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/delay.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, struct bd_info *bd) +{ + /* TBD */ +} +#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */ |