diff options
Diffstat (limited to 'arch/arm/mach-mxs/module-tx28.c')
| -rw-r--r-- | arch/arm/mach-mxs/module-tx28.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/arch/arm/mach-mxs/module-tx28.c b/arch/arm/mach-mxs/module-tx28.c deleted file mode 100644 index 0f71f82101c..00000000000 --- a/arch/arm/mach-mxs/module-tx28.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * Copyright (C) 2010 <LW@KARO-electronics.de> - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License version 2 as published by the - * Free Software Foundation. - */ - -#include <linux/delay.h> -#include <linux/fec.h> -#include <linux/gpio.h> - -#include <mach/iomux-mx28.h> -#include "devices-mx28.h" - -#include "module-tx28.h" - -#define TX28_FEC_PHY_POWER MXS_GPIO_NR(3, 29) -#define TX28_FEC_PHY_RESET MXS_GPIO_NR(4, 13) - -static const iomux_cfg_t tx28_fec_gpio_pads[] __initconst = { - /* PHY POWER */ - MX28_PAD_PWM4__GPIO_3_29 | - MXS_PAD_4MA | MXS_PAD_NOPULL | MXS_PAD_3V3, - /* PHY RESET */ - MX28_PAD_ENET0_RX_CLK__GPIO_4_13 | - MXS_PAD_4MA | MXS_PAD_NOPULL | MXS_PAD_3V3, - /* Mode strap pins 0-2 */ - MX28_PAD_ENET0_RXD0__GPIO_4_3 | - MXS_PAD_8MA | MXS_PAD_PULLUP | MXS_PAD_3V3, - MX28_PAD_ENET0_RXD1__GPIO_4_4 | - MXS_PAD_8MA | MXS_PAD_PULLUP | MXS_PAD_3V3, - MX28_PAD_ENET0_RX_EN__GPIO_4_2 | - MXS_PAD_8MA | MXS_PAD_PULLUP | MXS_PAD_3V3, - /* nINT */ - MX28_PAD_ENET0_TX_CLK__GPIO_4_5 | - MXS_PAD_4MA | MXS_PAD_NOPULL | MXS_PAD_3V3, - - MX28_PAD_ENET0_MDC__GPIO_4_0, - MX28_PAD_ENET0_MDIO__GPIO_4_1, - MX28_PAD_ENET0_TX_EN__GPIO_4_6, - MX28_PAD_ENET0_TXD0__GPIO_4_7, - MX28_PAD_ENET0_TXD1__GPIO_4_8, - MX28_PAD_ENET_CLK__GPIO_4_16, -}; - -#define FEC_MODE (MXS_PAD_8MA | MXS_PAD_PULLUP | MXS_PAD_3V3) -static const iomux_cfg_t tx28_fec0_pads[] __initconst = { - MX28_PAD_ENET0_MDC__ENET0_MDC | FEC_MODE, - MX28_PAD_ENET0_MDIO__ENET0_MDIO | FEC_MODE, - MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | FEC_MODE, - MX28_PAD_ENET0_RXD0__ENET0_RXD0 | FEC_MODE, - MX28_PAD_ENET0_RXD1__ENET0_RXD1 | FEC_MODE, - MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | FEC_MODE, - MX28_PAD_ENET0_TXD0__ENET0_TXD0 | FEC_MODE, - MX28_PAD_ENET0_TXD1__ENET0_TXD1 | FEC_MODE, - MX28_PAD_ENET_CLK__CLKCTRL_ENET | FEC_MODE, -}; - -static const iomux_cfg_t tx28_fec1_pads[] __initconst = { - MX28_PAD_ENET0_RXD2__ENET1_RXD0, - MX28_PAD_ENET0_RXD3__ENET1_RXD1, - MX28_PAD_ENET0_TXD2__ENET1_TXD0, - MX28_PAD_ENET0_TXD3__ENET1_TXD1, - MX28_PAD_ENET0_COL__ENET1_TX_EN, - MX28_PAD_ENET0_CRS__ENET1_RX_EN, -}; - -static const struct fec_platform_data tx28_fec0_data __initconst = { - .phy = PHY_INTERFACE_MODE_RMII, -}; - -static const struct fec_platform_data tx28_fec1_data __initconst = { - .phy = PHY_INTERFACE_MODE_RMII, -}; - -int __init tx28_add_fec0(void) -{ - int i, ret; - - pr_debug("%s: Switching FEC PHY power off\n", __func__); - ret = mxs_iomux_setup_multiple_pads(tx28_fec_gpio_pads, - ARRAY_SIZE(tx28_fec_gpio_pads)); - for (i = 0; i < ARRAY_SIZE(tx28_fec_gpio_pads); i++) { - unsigned int gpio = MXS_GPIO_NR(PAD_BANK(tx28_fec_gpio_pads[i]), - PAD_PIN(tx28_fec_gpio_pads[i])); - - ret = gpio_request(gpio, "FEC"); - if (ret) { - pr_err("Failed to request GPIO_%d_%d: %d\n", - PAD_BANK(tx28_fec_gpio_pads[i]), - PAD_PIN(tx28_fec_gpio_pads[i]), ret); - goto free_gpios; - } - ret = gpio_direction_output(gpio, 0); - if (ret) { - pr_err("Failed to set direction of GPIO_%d_%d to output: %d\n", - gpio / 32 + 1, gpio % 32, ret); - goto free_gpios; - } - } - - /* Power up fec phy */ - pr_debug("%s: Switching FEC PHY power on\n", __func__); - ret = gpio_direction_output(TX28_FEC_PHY_POWER, 1); - if (ret) { - pr_err("Failed to power on PHY: %d\n", ret); - goto free_gpios; - } - mdelay(26); /* 25ms according to data sheet */ - - /* nINT */ - gpio_direction_input(MXS_GPIO_NR(4, 5)); - /* Mode strap pins */ - gpio_direction_output(MXS_GPIO_NR(4, 2), 1); - gpio_direction_output(MXS_GPIO_NR(4, 3), 1); - gpio_direction_output(MXS_GPIO_NR(4, 4), 1); - - udelay(100); /* minimum assertion time for nRST */ - - pr_debug("%s: Deasserting FEC PHY RESET\n", __func__); - gpio_set_value(TX28_FEC_PHY_RESET, 1); - - ret = mxs_iomux_setup_multiple_pads(tx28_fec0_pads, - ARRAY_SIZE(tx28_fec0_pads)); - if (ret) { - pr_debug("%s: mxs_iomux_setup_multiple_pads() failed with rc: %d\n", - __func__, ret); - goto free_gpios; - } - pr_debug("%s: Registering FEC0 device\n", __func__); - mx28_add_fec(0, &tx28_fec0_data); - return 0; - -free_gpios: - while (--i >= 0) { - unsigned int gpio = MXS_GPIO_NR(PAD_BANK(tx28_fec_gpio_pads[i]), - PAD_PIN(tx28_fec_gpio_pads[i])); - - gpio_free(gpio); - } - - return ret; -} - -int __init tx28_add_fec1(void) -{ - int ret; - - ret = mxs_iomux_setup_multiple_pads(tx28_fec1_pads, - ARRAY_SIZE(tx28_fec1_pads)); - if (ret) { - pr_debug("%s: mxs_iomux_setup_multiple_pads() failed with rc: %d\n", - __func__, ret); - return ret; - } - pr_debug("%s: Registering FEC1 device\n", __func__); - mx28_add_fec(1, &tx28_fec1_data); - return 0; -} |