diff options
Diffstat (limited to 'arch/arm/mach-mx5/board-mx51_babbage.c')
| -rw-r--r-- | arch/arm/mach-mx5/board-mx51_babbage.c | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c deleted file mode 100644 index ed885f9d7b7..00000000000 --- a/arch/arm/mach-mx5/board-mx51_babbage.c +++ /dev/null @@ -1,265 +0,0 @@ -/* - * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright (C) 2009-2010 Amit Kucheria <amit.kucheria@canonical.com> - * - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ - -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/gpio.h> -#include <linux/delay.h> -#include <linux/io.h> -#include <linux/fsl_devices.h> - -#include <mach/common.h> -#include <mach/hardware.h> -#include <mach/imx-uart.h> -#include <mach/iomux-mx51.h> -#include <mach/mxc_ehci.h> - -#include <asm/irq.h> -#include <asm/setup.h> -#include <asm/mach-types.h> -#include <asm/mach/arch.h> -#include <asm/mach/time.h> - -#include "devices.h" - -#define BABBAGE_USB_HUB_RESET (0*32 + 7) /* GPIO_1_7 */ -#define BABBAGE_USBH1_STP (0*32 + 27) /* GPIO_1_27 */ -#define BABBAGE_PHY_RESET (1*32 +5) /* GPIO_2_5 */ - -/* USB_CTRL_1 */ -#define MX51_USB_CTRL_1_OFFSET 0x10 -#define MX51_USB_CTRL_UH1_EXT_CLK_EN (1 << 25) - -#define MX51_USB_PLLDIV_12_MHZ 0x00 -#define MX51_USB_PLL_DIV_19_2_MHZ 0x01 -#define MX51_USB_PLL_DIV_24_MHZ 0x02 - -static struct platform_device *devices[] __initdata = { - &mxc_fec_device, -}; - -static struct pad_desc mx51babbage_pads[] = { - /* UART1 */ - MX51_PAD_UART1_RXD__UART1_RXD, - MX51_PAD_UART1_TXD__UART1_TXD, - MX51_PAD_UART1_RTS__UART1_RTS, - MX51_PAD_UART1_CTS__UART1_CTS, - - /* UART2 */ - MX51_PAD_UART2_RXD__UART2_RXD, - MX51_PAD_UART2_TXD__UART2_TXD, - - /* UART3 */ - MX51_PAD_EIM_D25__UART3_RXD, - MX51_PAD_EIM_D26__UART3_TXD, - MX51_PAD_EIM_D27__UART3_RTS, - MX51_PAD_EIM_D24__UART3_CTS, - - /* USB HOST1 */ - MX51_PAD_USBH1_CLK__USBH1_CLK, - MX51_PAD_USBH1_DIR__USBH1_DIR, - MX51_PAD_USBH1_NXT__USBH1_NXT, - MX51_PAD_USBH1_DATA0__USBH1_DATA0, - MX51_PAD_USBH1_DATA1__USBH1_DATA1, - MX51_PAD_USBH1_DATA2__USBH1_DATA2, - MX51_PAD_USBH1_DATA3__USBH1_DATA3, - MX51_PAD_USBH1_DATA4__USBH1_DATA4, - MX51_PAD_USBH1_DATA5__USBH1_DATA5, - MX51_PAD_USBH1_DATA6__USBH1_DATA6, - MX51_PAD_USBH1_DATA7__USBH1_DATA7, - - /* USB HUB reset line*/ - MX51_PAD_GPIO_1_7__GPIO1_7, -}; - -/* Serial ports */ -#if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE) -static struct imxuart_platform_data uart_pdata = { - .flags = IMXUART_HAVE_RTSCTS, -}; - -static inline void mxc_init_imx_uart(void) -{ - mxc_register_device(&mxc_uart_device0, &uart_pdata); - mxc_register_device(&mxc_uart_device1, &uart_pdata); - mxc_register_device(&mxc_uart_device2, &uart_pdata); -} -#else /* !SERIAL_IMX */ -static inline void mxc_init_imx_uart(void) -{ -} -#endif /* SERIAL_IMX */ - -static int gpio_usbh1_active(void) -{ - struct pad_desc usbh1stp_gpio = MX51_PAD_USBH1_STP__GPIO_1_27; - struct pad_desc phyreset_gpio = MX51_PAD_EIM_D21__GPIO_2_5; - int ret; - - /* Set USBH1_STP to GPIO and toggle it */ - mxc_iomux_v3_setup_pad(&usbh1stp_gpio); - ret = gpio_request(BABBAGE_USBH1_STP, "usbh1_stp"); - - if (ret) { - pr_debug("failed to get MX51_PAD_USBH1_STP__GPIO_1_27: %d\n", ret); - return ret; - } - gpio_direction_output(BABBAGE_USBH1_STP, 0); - gpio_set_value(BABBAGE_USBH1_STP, 1); - msleep(100); - gpio_free(BABBAGE_USBH1_STP); - - /* De-assert USB PHY RESETB */ - mxc_iomux_v3_setup_pad(&phyreset_gpio); - ret = gpio_request(BABBAGE_PHY_RESET, "phy_reset"); - - if (ret) { - pr_debug("failed to get MX51_PAD_EIM_D21__GPIO_2_5: %d\n", ret); - return ret; - } - gpio_direction_output(BABBAGE_PHY_RESET, 1); - return 0; -} - -static inline void babbage_usbhub_reset(void) -{ - int ret; - - /* Bring USB hub out of reset */ - ret = gpio_request(BABBAGE_USB_HUB_RESET, "GPIO1_7"); - if (ret) { - printk(KERN_ERR"failed to get GPIO_USB_HUB_RESET: %d\n", ret); - return; - } - gpio_direction_output(BABBAGE_USB_HUB_RESET, 0); - - /* USB HUB RESET - De-assert USB HUB RESET_N */ - msleep(1); - gpio_set_value(BABBAGE_USB_HUB_RESET, 0); - msleep(1); - gpio_set_value(BABBAGE_USB_HUB_RESET, 1); -} - -/* This function is board specific as the bit mask for the plldiv will also -be different for other Freescale SoCs, thus a common bitmask is not -possible and cannot get place in /plat-mxc/ehci.c.*/ -static int initialize_otg_port(struct platform_device *pdev) -{ - u32 v; - void __iomem *usb_base; - u32 usbother_base; - - usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K); - usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET; - - /* Set the PHY clock to 19.2MHz */ - v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET); - v &= ~MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK; - v |= MX51_USB_PLL_DIV_19_2_MHZ; - __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET); - iounmap(usb_base); - return 0; -} - -static int initialize_usbh1_port(struct platform_device *pdev) -{ - u32 v; - void __iomem *usb_base; - u32 usbother_base; - - usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K); - usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET; - - /* The clock for the USBH1 ULPI port will come externally from the PHY. */ - v = __raw_readl(usbother_base + MX51_USB_CTRL_1_OFFSET); - __raw_writel(v | MX51_USB_CTRL_UH1_EXT_CLK_EN, usbother_base + MX51_USB_CTRL_1_OFFSET); - iounmap(usb_base); - return 0; -} - -static struct mxc_usbh_platform_data dr_utmi_config = { - .init = initialize_otg_port, - .portsc = MXC_EHCI_UTMI_16BIT, - .flags = MXC_EHCI_INTERNAL_PHY, -}; - -static struct fsl_usb2_platform_data usb_pdata = { - .operating_mode = FSL_USB2_DR_DEVICE, - .phy_mode = FSL_USB2_PHY_UTMI_WIDE, -}; - -static struct mxc_usbh_platform_data usbh1_config = { - .init = initialize_usbh1_port, - .portsc = MXC_EHCI_MODE_ULPI, - .flags = (MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_ITC_NO_THRESHOLD), -}; - -static int otg_mode_host; - -static int __init babbage_otg_mode(char *options) -{ - if (!strcmp(options, "host")) - otg_mode_host = 1; - else if (!strcmp(options, "device")) - otg_mode_host = 0; - else - pr_info("otg_mode neither \"host\" nor \"device\". " - "Defaulting to device\n"); - return 0; -} -__setup("otg_mode=", babbage_otg_mode); - -/* - * Board specific initialization. - */ -static void __init mxc_board_init(void) -{ - struct pad_desc usbh1stp = MX51_PAD_USBH1_STP__USBH1_STP; - - mxc_iomux_v3_setup_multiple_pads(mx51babbage_pads, - ARRAY_SIZE(mx51babbage_pads)); - mxc_init_imx_uart(); - platform_add_devices(devices, ARRAY_SIZE(devices)); - - if (otg_mode_host) - mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config); - else { - initialize_otg_port(NULL); - mxc_register_device(&mxc_usbdr_udc_device, &usb_pdata); - } - - gpio_usbh1_active(); - mxc_register_device(&mxc_usbh1_device, &usbh1_config); - /* setback USBH1_STP to be function */ - mxc_iomux_v3_setup_pad(&usbh1stp); - babbage_usbhub_reset(); -} - -static void __init mx51_babbage_timer_init(void) -{ - mx51_clocks_init(32768, 24000000, 22579200, 0); -} - -static struct sys_timer mxc_timer = { - .init = mx51_babbage_timer_init, -}; - -MACHINE_START(MX51_BABBAGE, "Freescale MX51 Babbage Board") - /* Maintainer: Amit Kucheria <amit.kucheria@canonical.com> */ - .phys_io = MX51_AIPS1_BASE_ADDR, - .io_pg_offst = ((MX51_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc, - .boot_params = PHYS_OFFSET + 0x100, - .map_io = mx51_map_io, - .init_irq = mx51_init_irq, - .init_machine = mxc_board_init, - .timer = &mxc_timer, -MACHINE_END |