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-rw-r--r--board/tqc/tqma6/tqma6_mba6.c361
1 files changed, 361 insertions, 0 deletions
diff --git a/board/tqc/tqma6/tqma6_mba6.c b/board/tqc/tqma6/tqma6_mba6.c
new file mode 100644
index 0000000..fd59287
--- /dev/null
+++ b/board/tqc/tqma6/tqma6_mba6.c
@@ -0,0 +1,361 @@
+/*
+ * 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>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#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 <asm/errno.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/mxc_i2c.h>
+
+#include <common.h>
+#include <fsl_esdhc.h>
+#include <libfdt.h>
+#include <malloc.h>
+#include <i2c.h>
+#include <micrel.h>
+#include <miiphy.h>
+#include <mmc.h>
+#include <netdev.h>
+
+#include "tqma6_bb.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#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_40ohm | PAD_CTL_HYS | \
+ PAD_CTL_ODE | PAD_CTL_SRE_FAST)
+
+#if defined(CONFIG_MX6Q)
+
+#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII 0x02e0790
+#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM 0x02e07ac
+
+#elif defined(CONFIG_MX6S)
+
+#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII 0x02e0768
+#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM 0x02e0788
+
+#else
+
+#error "need to define target CPU"
+
+#endif
+
+#define ENET_RX_PAD_CTRL (PAD_CTL_DSE_34ohm)
+#define ENET_TX_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_DSE_34ohm)
+#define ENET_CLK_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_HIGH | \
+ PAD_CTL_DSE_34ohm)
+#define ENET_MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_60ohm)
+
+/* 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
+
+#define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 25)
+
+static iomux_v3_cfg_t const mba6_enet_pads[] = {
+ NEW_PAD_CTRL(MX6_PAD_ENET_MDIO__ENET_MDIO, ENET_MDIO_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_ENET_MDC__ENET_MDC, ENET_MDIO_PAD_CTRL),
+
+ NEW_PAD_CTRL(MX6_PAD_RGMII_TXC__RGMII_TXC, ENET_TX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_RGMII_TD0__RGMII_TD0, ENET_TX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_RGMII_TD1__RGMII_TD1, ENET_TX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_RGMII_TD2__RGMII_TD2, ENET_TX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_RGMII_TD3__RGMII_TD3, ENET_TX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL,
+ ENET_TX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_ENET_REF_CLK__ENET_TX_CLK, ENET_CLK_PAD_CTRL),
+ /*
+ * these pins are also used for config strapping by phy
+ */
+ NEW_PAD_CTRL(MX6_PAD_RGMII_RD0__RGMII_RD0, ENET_RX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_RGMII_RD1__RGMII_RD1, ENET_RX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_RGMII_RD2__RGMII_RD2, ENET_RX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_RGMII_RD3__RGMII_RD3, ENET_RX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_RGMII_RXC__RGMII_RXC, ENET_RX_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL,
+ ENET_RX_PAD_CTRL),
+ /* KSZ9031 PHY Reset */
+ NEW_PAD_CTRL(MX6_PAD_ENET_CRS_DV__GPIO1_IO25, GPIO_OUT_PAD_CTRL),
+};
+
+static void mba6_setup_iomuxc_enet(void)
+{
+ __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);
+
+ imx_iomux_v3_setup_multiple_pads(mba6_enet_pads,
+ ARRAY_SIZE(mba6_enet_pads));
+
+ /* Reset PHY */
+ gpio_direction_output(ENET_PHY_RESET_GPIO , 0);
+ /* Need delay 10ms after power on according to KSZ9031 spec */
+ udelay(1000 * 10);
+ gpio_set_value(ENET_PHY_RESET_GPIO, 1);
+ /*
+ * KSZ9031 manual: 100 usec wait time after reset before communication
+ * over MDIO
+ * BUGBUG: hardware has an RC const that needs > 10 msec from 0->1 on
+ * reset before the phy sees a high level
+ */
+ udelay(200);
+}
+
+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));
+}
+
+#define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
+#define USDHC2_WP_GPIO IMX_GPIO_NR(1, 2)
+
+int tqma6_bb_board_mmc_getcd(struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+ int ret = 0;
+
+ if (cfg->esdhc_base == USDHC2_BASE_ADDR)
+ ret = !gpio_get_value(USDHC2_CD_GPIO);
+
+ return ret;
+}
+
+int tqma6_bb_board_mmc_getwp(struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+ int ret = 0;
+
+ if (cfg->esdhc_base == USDHC2_BASE_ADDR)
+ ret = gpio_get_value(USDHC2_WP_GPIO);
+
+ return ret;
+}
+
+static struct fsl_esdhc_cfg mba6_usdhc_cfg = {
+ .esdhc_base = USDHC2_BASE_ADDR,
+ .max_bus_width = 4,
+};
+
+static iomux_v3_cfg_t const mba6_usdhc2_pads[] = {
+ NEW_PAD_CTRL(MX6_PAD_SD2_CLK__SD2_CLK, USDHC_CLK_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_SD2_CMD__SD2_CMD, USDHC_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_SD2_DAT0__SD2_DATA0, USDHC_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_SD2_DAT1__SD2_DATA1, USDHC_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_SD2_DAT2__SD2_DATA2, USDHC_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_SD2_DAT3__SD2_DATA3, USDHC_PAD_CTRL),
+ /* CD */
+ NEW_PAD_CTRL(MX6_PAD_GPIO_4__GPIO1_IO04, GPIO_IN_PAD_CTRL),
+ /* WP */
+ NEW_PAD_CTRL(MX6_PAD_GPIO_2__GPIO1_IO02, GPIO_IN_PAD_CTRL),
+};
+
+int tqma6_bb_board_mmc_init(bd_t *bis)
+{
+ imx_iomux_v3_setup_multiple_pads(mba6_usdhc2_pads,
+ ARRAY_SIZE(mba6_usdhc2_pads));
+ gpio_direction_input(USDHC2_CD_GPIO);
+ gpio_direction_input(USDHC2_WP_GPIO);
+
+ mba6_usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+ if (fsl_esdhc_initialize(bis, &mba6_usdhc_cfg))
+ puts("Warning: failed to initialize SD\n");
+
+ return 0;
+}
+
+static struct i2c_pads_info mba6_i2c1_pads = {
+/* I2C1: MBa6x */
+ .scl = {
+ .i2c_mode = NEW_PAD_CTRL(MX6_PAD_CSI0_DAT9__I2C1_SCL,
+ I2C_PAD_CTRL),
+ .gpio_mode = NEW_PAD_CTRL(MX6_PAD_CSI0_DAT9__GPIO5_IO27,
+ I2C_PAD_CTRL),
+ .gp = IMX_GPIO_NR(5, 27)
+ },
+ .sda = {
+ .i2c_mode = NEW_PAD_CTRL(MX6_PAD_CSI0_DAT8__I2C1_SDA,
+ I2C_PAD_CTRL),
+ .gpio_mode = NEW_PAD_CTRL(MX6_PAD_CSI0_DAT8__GPIO5_IO26,
+ I2C_PAD_CTRL),
+ .gp = IMX_GPIO_NR(5, 26)
+ }
+};
+
+static void mba6_setup_i2c(void)
+{
+ /* use logical index for bus, e.g. I2C1 -> 0 */
+ setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &mba6_i2c1_pads);
+}
+
+
+static iomux_v3_cfg_t const mba6_ecspi1_pads[] = {
+ NEW_PAD_CTRL(MX6_PAD_EIM_D24__GPIO3_IO24, SPI_PAD_CTRL),
+ NEW_PAD_CTRL(MX6_PAD_EIM_D25__GPIO3_IO25, SPI_PAD_CTRL),
+};
+
+static unsigned const mba6_ecspi1_cs[] = {
+ IMX_GPIO_NR(3, 24),
+ IMX_GPIO_NR(3, 25),
+};
+
+static void mba6_setup_iomuxc_spi(void)
+{
+ unsigned i;
+
+ for (i = 0; i < ARRAY_SIZE(mba6_ecspi1_cs); ++i)
+ gpio_direction_output(mba6_ecspi1_cs[i], 1);
+ imx_iomux_v3_setup_multiple_pads(mba6_ecspi1_pads,
+ ARRAY_SIZE(mba6_ecspi1_pads));
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+/*
+ * optimized pad skew values depends on CPU variant on the TQMa6x module:
+ * i.MX6Q/D or i.MX6DL/S
+ */
+#if defined(CONFIG_MX6Q) || defined(CONFIG_MX6Q)
+#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_MX6DL) || defined(CONFIG_MX6S)
+#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 board_eth_init(bd_t *bis)
+{
+ uint32_t base = IMX_FEC_BASE;
+ struct mii_dev *bus = NULL;
+ struct phy_device *phydev = NULL;
+ int ret;
+
+ bus = fec_get_miibus(base, -1);
+ if (!bus)
+ return 0;
+ /* scan phy */
+ phydev = phy_find_by_mask(bus, (0xf << CONFIG_FEC_MXC_PHYADDR),
+ PHY_INTERFACE_MODE_RGMII);
+
+ if (!phydev) {
+ free(bus);
+ puts("No phy found\n");
+ return 0;
+ }
+ ret = fec_probe(bis, -1, base, bus, phydev);
+ if (ret) {
+ puts("FEC MXC: probe failed\n");
+ free(phydev);
+ free(bus);
+ }
+
+ return 0;
+}
+
+int tqma6_bb_board_early_init_f(void)
+{
+ mba6_setup_iomuxc_uart();
+
+ return 0;
+}
+
+int tqma6_bb_board_init(void)
+{
+ mba6_setup_i2c();
+ mba6_setup_iomuxc_spi();
+ /* do it here - to have reset completed */
+ 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) */