2015-09-22 00:27:41 +09:00
|
|
|
/*
|
|
|
|
* Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
|
|
*
|
|
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
|
|
*/
|
|
|
|
|
2016-07-22 20:20:11 +09:00
|
|
|
#include <linux/bitops.h>
|
2015-09-22 00:27:41 +09:00
|
|
|
#include <linux/io.h>
|
2016-01-09 01:51:13 +09:00
|
|
|
|
|
|
|
#include "../init.h"
|
|
|
|
#include "../sc-regs.h"
|
2015-09-22 00:27:41 +09:00
|
|
|
|
2016-03-30 20:17:02 +09:00
|
|
|
void uniphier_pxs2_clk_init(void)
|
2015-09-22 00:27:41 +09:00
|
|
|
{
|
|
|
|
u32 tmp;
|
|
|
|
|
|
|
|
/* deassert reset */
|
|
|
|
tmp = readl(SC_RSTCTRL);
|
2017-10-14 02:21:17 +09:00
|
|
|
#ifdef CONFIG_USB_DWC3_UNIPHIER
|
2015-09-22 00:27:41 +09:00
|
|
|
tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_GIO;
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_NAND_DENALI
|
|
|
|
tmp |= SC_RSTCTRL_NRST_NAND;
|
|
|
|
#endif
|
|
|
|
writel(tmp, SC_RSTCTRL);
|
|
|
|
readl(SC_RSTCTRL); /* dummy read */
|
|
|
|
|
2017-10-14 02:21:17 +09:00
|
|
|
#ifdef CONFIG_USB_DWC3_UNIPHIER
|
2015-09-22 00:27:41 +09:00
|
|
|
tmp = readl(SC_RSTCTRL2);
|
|
|
|
tmp |= SC_RSTCTRL2_NRST_USB3B1;
|
|
|
|
writel(tmp, SC_RSTCTRL2);
|
|
|
|
readl(SC_RSTCTRL2); /* dummy read */
|
2016-07-22 20:20:11 +09:00
|
|
|
|
|
|
|
tmp = readl(SC_RSTCTRL6);
|
|
|
|
tmp |= 0x37;
|
|
|
|
writel(tmp, SC_RSTCTRL6);
|
2015-09-22 00:27:41 +09:00
|
|
|
#endif
|
|
|
|
|
2016-03-30 20:17:42 +09:00
|
|
|
/* provide clocks */
|
2015-09-22 00:27:41 +09:00
|
|
|
tmp = readl(SC_CLKCTRL);
|
2017-10-14 02:21:17 +09:00
|
|
|
#ifdef CONFIG_USB_DWC3_UNIPHIER
|
2016-07-22 20:20:11 +09:00
|
|
|
tmp |= BIT(20) | BIT(19) | SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 |
|
2015-09-22 00:27:41 +09:00
|
|
|
SC_CLKCTRL_CEN_GIO;
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_NAND_DENALI
|
|
|
|
tmp |= SC_CLKCTRL_CEN_NAND;
|
|
|
|
#endif
|
|
|
|
writel(tmp, SC_CLKCTRL);
|
|
|
|
readl(SC_CLKCTRL); /* dummy read */
|
|
|
|
}
|