diff options
Diffstat (limited to 'arch/arm/mach-uniphier/clk/pll-ld20.c')
| -rw-r--r-- | arch/arm/mach-uniphier/clk/pll-ld20.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/clk/pll-ld20.c b/arch/arm/mach-uniphier/clk/pll-ld20.c new file mode 100644 index 0000000..5e545da --- /dev/null +++ b/arch/arm/mach-uniphier/clk/pll-ld20.c @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> + +#include "../init.h" +#include "../sc64-regs.h" +#include "pll.h" + +int uniphier_ld20_pll_init(const struct uniphier_board_data *bd) +{ + unsigned int dpll_ssc_rate = UNIPHIER_BD_DPLL_SSC_GET_RATE(bd->flags); + + uniphier_ld20_sscpll_init(SC_CPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 4); + /* do nothing for SPLL */ + uniphier_ld20_sscpll_init(SC_SPLL2CTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 4); + uniphier_ld20_sscpll_init(SC_MPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 2); + uniphier_ld20_sscpll_init(SC_VPPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 4); + uniphier_ld20_sscpll_init(SC_GPPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 2); + + mdelay(1); + + if (dpll_ssc_rate > 0) { + uniphier_ld20_sscpll_ssc_en(SC_DPLL0CTRL); + uniphier_ld20_sscpll_ssc_en(SC_DPLL1CTRL); + uniphier_ld20_sscpll_ssc_en(SC_DPLL2CTRL); + } + + uniphier_ld20_vpll27_init(SC_VPLL27FCTRL); + uniphier_ld20_vpll27_init(SC_VPLL27ACTRL); + + uniphier_ld20_dspll_init(SC_VPLL8KCTRL); + uniphier_ld20_dspll_init(SC_A2PLLCTRL); + + return 0; +} |