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git01.mediatek.com / filogic / uboot / cae8c2145592dbe29682dfb55f5ff17090766d21 / . / drivers / usb / host / ohci-at91.c
blob: b170f26e6c6a846323f3c2b90837416499ae214d [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -0400[diff] [blame]1// SPDX-License-Identifier: GPL-2.0+
Stelian Popd1aea1c2008-01-30 21:15:54 +0000[diff] [blame]2/*
3 * (C) Copyright 2006
Stelian Popf9e848b2008-05-08 22:52:09 +0200[diff] [blame]4 * DENX Software Engineering <mk@denx.de>
Stelian Popd1aea1c2008-01-30 21:15:54 +0000[diff] [blame]5 */
6
Jean-Christophe PLAGNIOL-VILLARD23164f12009-04-16 21:30:44 +0200[diff] [blame]7#include <asm/arch/clk.h>
Stelian Popd1aea1c2008-01-30 21:15:54 +0000[diff] [blame]8
9int usb_cpu_init(void)
10{
Bo Shen4a985df2013-10-21 16:14:00 +0800[diff] [blame]11#ifdef CONFIG_USB_ATMEL_CLK_SEL_PLLB
Wenyou Yangcb88cd82016-02-03 10:20:44 +0800[diff] [blame]12 if (at91_pllb_clk_enable(get_pllb_init()))
13 return -1;
14
Bo Shen8ed87832013-10-21 16:13:59 +0800[diff] [blame]15#ifdef CONFIG_AT91SAM9N12
Wenyou Yang2f7be642016-02-02 11:11:53 +0800[diff] [blame]16 at91_usb_clk_init(AT91_PMC_USBS_USB_PLLB | AT91_PMC_USB_DIV_2);
Bo Shen8ed87832013-10-21 16:13:59 +0800[diff] [blame]17#endif
Bo Shen4a985df2013-10-21 16:14:00 +0800[diff] [blame]18#elif defined(CONFIG_USB_ATMEL_CLK_SEL_UPLL)
Wenyou Yang2f7be642016-02-02 11:11:53 +0800[diff] [blame]19 if (at91_upll_clk_enable())
20 return -1;
Sergey Matyukevichd25010d2010-06-09 23:09:06 +0400[diff] [blame]21
Wenyou Yang2f7be642016-02-02 11:11:53 +0800[diff] [blame]22 at91_usb_clk_init(AT91_PMC_USBS_USB_UPLL | AT91_PMC_USBDIV_10);
Stelian Pope9fe2cf2008-11-09 00:14:46 +0100[diff] [blame]23#endif
24
Bo Shencf905632014-08-06 17:24:56 +0800[diff] [blame]25 at91_periph_clk_enable(ATMEL_ID_UHP);
Bo Shen72979a32013-05-12 22:40:53 +0000[diff] [blame]26
Wenyou Yangfbd4ac12016-02-03 10:16:51 +0800[diff] [blame]27 at91_system_clk_enable(ATMEL_PMC_UHP);
Bo Shenbed082f2013-04-17 00:09:51 +0000[diff] [blame]28#if defined(CONFIG_AT91SAM9261) || defined(CONFIG_AT91SAM9G10)
Wenyou Yangfbd4ac12016-02-03 10:16:51 +0800[diff] [blame]29 at91_system_clk_enable(AT91_PMC_HCK0);
Stelian Pop61e69d72008-05-08 20:52:22 +0200[diff] [blame]30#endif
Stelian Popd1aea1c2008-01-30 21:15:54 +0000[diff] [blame]31
32 return 0;
33}
34
35int usb_cpu_stop(void)
36{
Bo Shencf905632014-08-06 17:24:56 +0800[diff] [blame]37 at91_periph_clk_disable(ATMEL_ID_UHP);
Bo Shen72979a32013-05-12 22:40:53 +0000[diff] [blame]38
Wenyou Yangfbd4ac12016-02-03 10:16:51 +0800[diff] [blame]39 at91_system_clk_disable(ATMEL_PMC_UHP);
Bo Shenbed082f2013-04-17 00:09:51 +0000[diff] [blame]40#if defined(CONFIG_AT91SAM9261) || defined(CONFIG_AT91SAM9G10)
Wenyou Yangfbd4ac12016-02-03 10:16:51 +0800[diff] [blame]41 at91_system_clk_disable(AT91_PMC_HCK0);
Stelian Pop61e69d72008-05-08 20:52:22 +0200[diff] [blame]42#endif
Stelian Pope9fe2cf2008-11-09 00:14:46 +0100[diff] [blame]43
Bo Shen4a985df2013-10-21 16:14:00 +0800[diff] [blame]44#ifdef CONFIG_USB_ATMEL_CLK_SEL_PLLB
Bo Shen8ed87832013-10-21 16:13:59 +0800[diff] [blame]45#ifdef CONFIG_AT91SAM9N12
Wenyou Yang2f7be642016-02-02 11:11:53 +0800[diff] [blame]46 at91_usb_clk_init(0);
Bo Shen8ed87832013-10-21 16:13:59 +0800[diff] [blame]47#endif
Wenyou Yangcb88cd82016-02-03 10:20:44 +0800[diff] [blame]48
49 if (at91_pllb_clk_disable())
50 return -1;
51
Bo Shen4a985df2013-10-21 16:14:00 +0800[diff] [blame]52#elif defined(CONFIG_USB_ATMEL_CLK_SEL_UPLL)
Wenyou Yang2f7be642016-02-02 11:11:53 +0800[diff] [blame]53 if (at91_upll_clk_disable())
54 return -1;
Stelian Pope9fe2cf2008-11-09 00:14:46 +0100[diff] [blame]55#endif
56
Stelian Popd1aea1c2008-01-30 21:15:54 +0000[diff] [blame]57 return 0;
58}
59
60int usb_cpu_init_fail(void)
61{
62 return usb_cpu_stop();
63}