2 * Copyright (C) 2010 Linaro Limited
4 * based on code from the following
5 * Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
6 * Copyright 2009-2010 Pegatron Corporation. All Rights Reserved.
7 * Copyright 2009-2010 Genesi USA, Inc. All Rights Reserved.
9 * The code contained herein is licensed under the GNU General Public
10 * License. You may obtain a copy of the GNU General Public License
11 * Version 2 or later at the following locations:
13 * http://www.opensource.org/licenses/gpl-license.html
14 * http://www.gnu.org/copyleft/gpl.html
17 #include <linux/init.h>
18 #include <linux/platform_device.h>
19 #include <linux/i2c.h>
20 #include <linux/gpio.h>
21 #include <linux/delay.h>
23 #include <linux/fsl_devices.h>
25 #include <mach/common.h>
26 #include <mach/hardware.h>
27 #include <mach/iomux-mx51.h>
29 #include <mach/mxc_ehci.h>
32 #include <asm/setup.h>
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/time.h>
37 #include "devices-imx51.h"
40 #define MX51_USB_PLL_DIV_24_MHZ 0x01
42 static struct pad_desc mx51efikamx_pads
[] = {
44 MX51_PAD_UART1_RXD__UART1_RXD
,
45 MX51_PAD_UART1_TXD__UART1_TXD
,
46 MX51_PAD_UART1_RTS__UART1_RTS
,
47 MX51_PAD_UART1_CTS__UART1_CTS
,
51 #if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)
52 static const struct imxuart_platform_data uart_pdata
= {
53 .flags
= IMXUART_HAVE_RTSCTS
,
56 static inline void mxc_init_imx_uart(void)
58 imx51_add_imx_uart(0, &uart_pdata
);
59 imx51_add_imx_uart(1, &uart_pdata
);
60 imx51_add_imx_uart(2, &uart_pdata
);
62 #else /* !SERIAL_IMX */
63 static inline void mxc_init_imx_uart(void)
66 #endif /* SERIAL_IMX */
68 /* This function is board specific as the bit mask for the plldiv will also
69 * be different for other Freescale SoCs, thus a common bitmask is not
70 * possible and cannot get place in /plat-mxc/ehci.c.
72 static int initialize_otg_port(struct platform_device
*pdev
)
75 void __iomem
*usb_base
;
76 void __iomem
*usbother_base
;
77 usb_base
= ioremap(MX51_OTG_BASE_ADDR
, SZ_4K
);
78 usbother_base
= (void __iomem
*)(usb_base
+ MX5_USBOTHER_REGS_OFFSET
);
80 /* Set the PHY clock to 19.2MHz */
81 v
= __raw_readl(usbother_base
+ MXC_USB_PHY_CTR_FUNC2_OFFSET
);
82 v
&= ~MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK
;
83 v
|= MX51_USB_PLL_DIV_24_MHZ
;
84 __raw_writel(v
, usbother_base
+ MXC_USB_PHY_CTR_FUNC2_OFFSET
);
89 static struct mxc_usbh_platform_data dr_utmi_config
= {
90 .init
= initialize_otg_port
,
91 .portsc
= MXC_EHCI_UTMI_16BIT
,
92 .flags
= MXC_EHCI_INTERNAL_PHY
,
95 static void __init
mxc_board_init(void)
97 mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads
,
98 ARRAY_SIZE(mx51efikamx_pads
));
99 mxc_register_device(&mxc_usbdr_host_device
, &dr_utmi_config
);
103 static void __init
mx51_efikamx_timer_init(void)
105 mx51_clocks_init(32768, 24000000, 22579200, 24576000);
108 static struct sys_timer mxc_timer
= {
109 .init
= mx51_efikamx_timer_init
,
112 MACHINE_START(MX51_EFIKAMX
, "Genesi EfikaMX nettop")
113 /* Maintainer: Amit Kucheria <amit.kucheria@linaro.org> */
114 .boot_params
= MX51_PHYS_OFFSET
+ 0x100,
115 .map_io
= mx51_map_io
,
116 .init_irq
= mx51_init_irq
,
117 .init_machine
= mxc_board_init
,