2 * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <mach/init.h>
11 #include <mach/sc-regs.h>
13 int proxstream2_early_clk_init(const struct uniphier_board_data *bd)
18 if (spl_boot_device() != BOOT_DEVICE_NAND) {
19 tmp = readl(SC_RSTCTRL);
20 tmp &= ~SC_RSTCTRL_NRST_NAND;
21 writel(tmp, SC_RSTCTRL);
24 tmp = readl(SC_RSTCTRL4);
25 tmp |= SC_RSTCTRL4_NRST_UMCSB | SC_RSTCTRL4_NRST_UMCA2 |
26 SC_RSTCTRL4_NRST_UMCA1 | SC_RSTCTRL4_NRST_UMCA0 |
27 SC_RSTCTRL4_NRST_UMC32 | SC_RSTCTRL4_NRST_UMC31 |
28 SC_RSTCTRL4_NRST_UMC30;
29 writel(tmp, SC_RSTCTRL4);
30 readl(SC_RSTCTRL4); /* dummy read */
33 tmp = readl(SC_CLKCTRL);
34 tmp |= SC_CLKCTRL_CEN_SBC | SC_CLKCTRL_CEN_PERI;
35 writel(tmp, SC_CLKCTRL);
37 tmp = readl(SC_CLKCTRL4);
38 tmp |= SC_CLKCTRL4_CEN_UMCSB | SC_CLKCTRL4_CEN_UMC2 |
39 SC_CLKCTRL4_CEN_UMC1 | SC_CLKCTRL4_CEN_UMC0;
40 writel(tmp, SC_CLKCTRL4);
41 readl(SC_CLKCTRL4); /* dummy read */