| // SPDX-License-Identifier: GPL-2.0+ |
| * Copyright (C) 2013-2014 Panasonic Corporation |
| * Copyright (C) 2015-2016 Socionext Inc. |
| #undef DPLL_SSC_RATE_1PER |
| int uniphier_pro4_dpll_init(const struct uniphier_board_data *bd) |
| unsigned int dram_freq = bd->dram_freq; |
| * Set 0xc(1600MHz)/0xd(1333MHz)/0xe(1066MHz) |
| * to FOUT ( DPLLCTRL.bit[29:20] ) |
| tmp = readl(SC_DPLLCTRL); |
| pr_err("Unsupported frequency"); |
| * Set 0x0(1%)/0x1(2%) to SSC_RATE(DPLLCTRL.bit[15]) |
| #if defined(DPLL_SSC_RATE_1PER) |
| writel(tmp, SC_DPLLCTRL); |
| tmp = readl(SC_DPLLCTRL2); |
| tmp |= SC_DPLLCTRL2_NRSTDS; |
| writel(tmp, SC_DPLLCTRL2); |
| /* Wait until dpll gets stable */ |