mirror of
https://github.com/brain-hackers/u-boot-brain
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682e09ff9f
Initialize the DPLL (PLL for DRAM) in SPL, and others in U-Boot proper. Split the common code into pll-base-ld20.c for easier re-use. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/*
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* Copyright (C) 2016 Socionext Inc.
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* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include "../init.h"
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#include "../sc64-regs.h"
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#include "pll.h"
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int uniphier_ld20_pll_init(const struct uniphier_board_data *bd)
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{
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unsigned int dpll_ssc_rate = UNIPHIER_BD_DPLL_SSC_GET_RATE(bd->flags);
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uniphier_ld20_sscpll_init(SC_CPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 4);
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/* do nothing for SPLL */
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uniphier_ld20_sscpll_init(SC_SPLL2CTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 4);
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uniphier_ld20_sscpll_init(SC_MPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 2);
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uniphier_ld20_sscpll_init(SC_VPPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 4);
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uniphier_ld20_sscpll_init(SC_GPPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 2);
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mdelay(1);
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if (dpll_ssc_rate > 0) {
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uniphier_ld20_sscpll_ssc_en(SC_DPLL0CTRL);
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uniphier_ld20_sscpll_ssc_en(SC_DPLL1CTRL);
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uniphier_ld20_sscpll_ssc_en(SC_DPLL2CTRL);
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}
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uniphier_ld20_vpll27_init(SC_VPLL27FCTRL);
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uniphier_ld20_vpll27_init(SC_VPLL27ACTRL);
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uniphier_ld20_dspll_init(SC_VPLL8KCTRL);
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uniphier_ld20_dspll_init(SC_A2PLLCTRL);
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return 0;
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}
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