1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #include <linux/bitops.h> 8*4882a593Smuzhiyun #include <linux/io.h> 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include "../init.h" 11*4882a593Smuzhiyun #include "../sc-regs.h" 12*4882a593Smuzhiyun uniphier_pxs2_clk_init(void)13*4882a593Smuzhiyunvoid uniphier_pxs2_clk_init(void) 14*4882a593Smuzhiyun { 15*4882a593Smuzhiyun u32 tmp; 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* deassert reset */ 18*4882a593Smuzhiyun tmp = readl(SC_RSTCTRL); 19*4882a593Smuzhiyun #ifdef CONFIG_USB_XHCI_UNIPHIER 20*4882a593Smuzhiyun tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_GIO; 21*4882a593Smuzhiyun #endif 22*4882a593Smuzhiyun #ifdef CONFIG_UNIPHIER_ETH 23*4882a593Smuzhiyun tmp |= SC_RSTCTRL_NRST_ETHER; 24*4882a593Smuzhiyun #endif 25*4882a593Smuzhiyun #ifdef CONFIG_NAND_DENALI 26*4882a593Smuzhiyun tmp |= SC_RSTCTRL_NRST_NAND; 27*4882a593Smuzhiyun #endif 28*4882a593Smuzhiyun writel(tmp, SC_RSTCTRL); 29*4882a593Smuzhiyun readl(SC_RSTCTRL); /* dummy read */ 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun #ifdef CONFIG_USB_XHCI_UNIPHIER 32*4882a593Smuzhiyun tmp = readl(SC_RSTCTRL2); 33*4882a593Smuzhiyun tmp |= SC_RSTCTRL2_NRST_USB3B1; 34*4882a593Smuzhiyun writel(tmp, SC_RSTCTRL2); 35*4882a593Smuzhiyun readl(SC_RSTCTRL2); /* dummy read */ 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun tmp = readl(SC_RSTCTRL6); 38*4882a593Smuzhiyun tmp |= 0x37; 39*4882a593Smuzhiyun writel(tmp, SC_RSTCTRL6); 40*4882a593Smuzhiyun #endif 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun /* provide clocks */ 43*4882a593Smuzhiyun tmp = readl(SC_CLKCTRL); 44*4882a593Smuzhiyun #ifdef CONFIG_USB_XHCI_UNIPHIER 45*4882a593Smuzhiyun tmp |= BIT(20) | BIT(19) | SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 | 46*4882a593Smuzhiyun SC_CLKCTRL_CEN_GIO; 47*4882a593Smuzhiyun #endif 48*4882a593Smuzhiyun #ifdef CONFIG_UNIPHIER_ETH 49*4882a593Smuzhiyun tmp |= SC_CLKCTRL_CEN_ETHER; 50*4882a593Smuzhiyun #endif 51*4882a593Smuzhiyun #ifdef CONFIG_NAND_DENALI 52*4882a593Smuzhiyun tmp |= SC_CLKCTRL_CEN_NAND; 53*4882a593Smuzhiyun #endif 54*4882a593Smuzhiyun writel(tmp, SC_CLKCTRL); 55*4882a593Smuzhiyun readl(SC_CLKCTRL); /* dummy read */ 56*4882a593Smuzhiyun } 57