481 lines
19 KiB
C
481 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2013 Tomasz Figa <tomasz.figa at gmail.com>
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*
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* Common Clock Framework support for all S3C64xx SoCs.
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*/
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#include <linux/slab.h>
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#include <linux/clk-provider.h>
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#include <linux/clk/samsung.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <dt-bindings/clock/samsung,s3c64xx-clock.h>
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#include "clk.h"
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#include "clk-pll.h"
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/* S3C64xx clock controller register offsets. */
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#define APLL_LOCK 0x000
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#define MPLL_LOCK 0x004
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#define EPLL_LOCK 0x008
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#define APLL_CON 0x00c
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#define MPLL_CON 0x010
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#define EPLL_CON0 0x014
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#define EPLL_CON1 0x018
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#define CLK_SRC 0x01c
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#define CLK_DIV0 0x020
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#define CLK_DIV1 0x024
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#define CLK_DIV2 0x028
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#define HCLK_GATE 0x030
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#define PCLK_GATE 0x034
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#define SCLK_GATE 0x038
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#define MEM0_GATE 0x03c
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#define CLK_SRC2 0x10c
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#define OTHERS 0x900
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/* Helper macros to define clock arrays. */
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#define FIXED_RATE_CLOCKS(name) \
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static struct samsung_fixed_rate_clock name[]
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#define MUX_CLOCKS(name) \
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static struct samsung_mux_clock name[]
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#define DIV_CLOCKS(name) \
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static struct samsung_div_clock name[]
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#define GATE_CLOCKS(name) \
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static struct samsung_gate_clock name[]
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/* Helper macros for gate types present on S3C64xx. */
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#define GATE_BUS(_id, cname, pname, o, b) \
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GATE(_id, cname, pname, o, b, 0, 0)
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#define GATE_SCLK(_id, cname, pname, o, b) \
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GATE(_id, cname, pname, o, b, CLK_SET_RATE_PARENT, 0)
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#define GATE_ON(_id, cname, pname, o, b) \
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GATE(_id, cname, pname, o, b, CLK_IGNORE_UNUSED, 0)
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static void __iomem *reg_base;
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static bool is_s3c6400;
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/*
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* List of controller registers to be saved and restored during
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* a suspend/resume cycle.
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*/
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static unsigned long s3c64xx_clk_regs[] __initdata = {
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APLL_LOCK,
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MPLL_LOCK,
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EPLL_LOCK,
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APLL_CON,
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MPLL_CON,
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EPLL_CON0,
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EPLL_CON1,
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CLK_SRC,
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CLK_DIV0,
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CLK_DIV1,
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CLK_DIV2,
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HCLK_GATE,
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PCLK_GATE,
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SCLK_GATE,
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};
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static unsigned long s3c6410_clk_regs[] __initdata = {
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CLK_SRC2,
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MEM0_GATE,
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};
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/* List of parent clocks common for all S3C64xx SoCs. */
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PNAME(spi_mmc_p) = { "mout_epll", "dout_mpll", "fin_pll", "clk27m" };
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PNAME(uart_p) = { "mout_epll", "dout_mpll" };
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PNAME(audio0_p) = { "mout_epll", "dout_mpll", "fin_pll", "iiscdclk0",
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"pcmcdclk0", "none", "none", "none" };
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PNAME(audio1_p) = { "mout_epll", "dout_mpll", "fin_pll", "iiscdclk1",
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"pcmcdclk0", "none", "none", "none" };
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PNAME(mfc_p) = { "hclkx2", "mout_epll" };
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PNAME(apll_p) = { "fin_pll", "fout_apll" };
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PNAME(mpll_p) = { "fin_pll", "fout_mpll" };
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PNAME(epll_p) = { "fin_pll", "fout_epll" };
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PNAME(hclkx2_p) = { "mout_mpll", "mout_apll" };
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/* S3C6400-specific parent clocks. */
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PNAME(scaler_lcd_p6400) = { "mout_epll", "dout_mpll", "none", "none" };
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PNAME(irda_p6400) = { "mout_epll", "dout_mpll", "none", "clk48m" };
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PNAME(uhost_p6400) = { "clk48m", "mout_epll", "dout_mpll", "none" };
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/* S3C6410-specific parent clocks. */
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PNAME(clk27_p6410) = { "clk27m", "fin_pll" };
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PNAME(scaler_lcd_p6410) = { "mout_epll", "dout_mpll", "fin_pll", "none" };
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PNAME(irda_p6410) = { "mout_epll", "dout_mpll", "fin_pll", "clk48m" };
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PNAME(uhost_p6410) = { "clk48m", "mout_epll", "dout_mpll", "fin_pll" };
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PNAME(audio2_p6410) = { "mout_epll", "dout_mpll", "fin_pll", "iiscdclk2",
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"pcmcdclk1", "none", "none", "none" };
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/* Fixed rate clocks generated outside the SoC. */
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FIXED_RATE_CLOCKS(s3c64xx_fixed_rate_ext_clks) __initdata = {
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FRATE(0, "fin_pll", NULL, 0, 0),
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FRATE(0, "xusbxti", NULL, 0, 0),
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};
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/* Fixed rate clocks generated inside the SoC. */
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FIXED_RATE_CLOCKS(s3c64xx_fixed_rate_clks) __initdata = {
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FRATE(CLK27M, "clk27m", NULL, 0, 27000000),
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FRATE(CLK48M, "clk48m", NULL, 0, 48000000),
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};
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/* List of clock muxes present on all S3C64xx SoCs. */
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MUX_CLOCKS(s3c64xx_mux_clks) __initdata = {
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MUX_F(0, "mout_syncmux", hclkx2_p, OTHERS, 6, 1, 0, CLK_MUX_READ_ONLY),
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MUX(MOUT_APLL, "mout_apll", apll_p, CLK_SRC, 0, 1),
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MUX(MOUT_MPLL, "mout_mpll", mpll_p, CLK_SRC, 1, 1),
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MUX(MOUT_EPLL, "mout_epll", epll_p, CLK_SRC, 2, 1),
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MUX(MOUT_MFC, "mout_mfc", mfc_p, CLK_SRC, 4, 1),
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MUX(MOUT_AUDIO0, "mout_audio0", audio0_p, CLK_SRC, 7, 3),
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MUX(MOUT_AUDIO1, "mout_audio1", audio1_p, CLK_SRC, 10, 3),
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MUX(MOUT_UART, "mout_uart", uart_p, CLK_SRC, 13, 1),
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MUX(MOUT_SPI0, "mout_spi0", spi_mmc_p, CLK_SRC, 14, 2),
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MUX(MOUT_SPI1, "mout_spi1", spi_mmc_p, CLK_SRC, 16, 2),
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MUX(MOUT_MMC0, "mout_mmc0", spi_mmc_p, CLK_SRC, 18, 2),
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MUX(MOUT_MMC1, "mout_mmc1", spi_mmc_p, CLK_SRC, 20, 2),
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MUX(MOUT_MMC2, "mout_mmc2", spi_mmc_p, CLK_SRC, 22, 2),
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};
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/* List of clock muxes present on S3C6400. */
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MUX_CLOCKS(s3c6400_mux_clks) __initdata = {
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MUX(MOUT_UHOST, "mout_uhost", uhost_p6400, CLK_SRC, 5, 2),
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MUX(MOUT_IRDA, "mout_irda", irda_p6400, CLK_SRC, 24, 2),
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MUX(MOUT_LCD, "mout_lcd", scaler_lcd_p6400, CLK_SRC, 26, 2),
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MUX(MOUT_SCALER, "mout_scaler", scaler_lcd_p6400, CLK_SRC, 28, 2),
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};
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/* List of clock muxes present on S3C6410. */
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MUX_CLOCKS(s3c6410_mux_clks) __initdata = {
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MUX(MOUT_UHOST, "mout_uhost", uhost_p6410, CLK_SRC, 5, 2),
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MUX(MOUT_IRDA, "mout_irda", irda_p6410, CLK_SRC, 24, 2),
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MUX(MOUT_LCD, "mout_lcd", scaler_lcd_p6410, CLK_SRC, 26, 2),
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MUX(MOUT_SCALER, "mout_scaler", scaler_lcd_p6410, CLK_SRC, 28, 2),
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MUX(MOUT_DAC27, "mout_dac27", clk27_p6410, CLK_SRC, 30, 1),
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MUX(MOUT_TV27, "mout_tv27", clk27_p6410, CLK_SRC, 31, 1),
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MUX(MOUT_AUDIO2, "mout_audio2", audio2_p6410, CLK_SRC2, 0, 3),
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};
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/* List of clock dividers present on all S3C64xx SoCs. */
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DIV_CLOCKS(s3c64xx_div_clks) __initdata = {
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DIV(DOUT_MPLL, "dout_mpll", "mout_mpll", CLK_DIV0, 4, 1),
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DIV(HCLKX2, "hclkx2", "mout_syncmux", CLK_DIV0, 9, 3),
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DIV(HCLK, "hclk", "hclkx2", CLK_DIV0, 8, 1),
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DIV(PCLK, "pclk", "hclkx2", CLK_DIV0, 12, 4),
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DIV(DOUT_SECUR, "dout_secur", "hclkx2", CLK_DIV0, 18, 2),
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DIV(DOUT_CAM, "dout_cam", "hclkx2", CLK_DIV0, 20, 4),
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DIV(DOUT_JPEG, "dout_jpeg", "hclkx2", CLK_DIV0, 24, 4),
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DIV(DOUT_MFC, "dout_mfc", "mout_mfc", CLK_DIV0, 28, 4),
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DIV(DOUT_MMC0, "dout_mmc0", "mout_mmc0", CLK_DIV1, 0, 4),
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DIV(DOUT_MMC1, "dout_mmc1", "mout_mmc1", CLK_DIV1, 4, 4),
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DIV(DOUT_MMC2, "dout_mmc2", "mout_mmc2", CLK_DIV1, 8, 4),
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DIV(DOUT_LCD, "dout_lcd", "mout_lcd", CLK_DIV1, 12, 4),
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DIV(DOUT_SCALER, "dout_scaler", "mout_scaler", CLK_DIV1, 16, 4),
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DIV(DOUT_UHOST, "dout_uhost", "mout_uhost", CLK_DIV1, 20, 4),
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DIV(DOUT_SPI0, "dout_spi0", "mout_spi0", CLK_DIV2, 0, 4),
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DIV(DOUT_SPI1, "dout_spi1", "mout_spi1", CLK_DIV2, 4, 4),
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DIV(DOUT_AUDIO0, "dout_audio0", "mout_audio0", CLK_DIV2, 8, 4),
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DIV(DOUT_AUDIO1, "dout_audio1", "mout_audio1", CLK_DIV2, 12, 4),
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DIV(DOUT_UART, "dout_uart", "mout_uart", CLK_DIV2, 16, 4),
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DIV(DOUT_IRDA, "dout_irda", "mout_irda", CLK_DIV2, 20, 4),
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};
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/* List of clock dividers present on S3C6400. */
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DIV_CLOCKS(s3c6400_div_clks) __initdata = {
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DIV(ARMCLK, "armclk", "mout_apll", CLK_DIV0, 0, 3),
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};
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/* List of clock dividers present on S3C6410. */
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DIV_CLOCKS(s3c6410_div_clks) __initdata = {
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DIV(ARMCLK, "armclk", "mout_apll", CLK_DIV0, 0, 4),
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DIV(DOUT_FIMC, "dout_fimc", "hclk", CLK_DIV1, 24, 4),
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DIV(DOUT_AUDIO2, "dout_audio2", "mout_audio2", CLK_DIV2, 24, 4),
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};
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/* List of clock gates present on all S3C64xx SoCs. */
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GATE_CLOCKS(s3c64xx_gate_clks) __initdata = {
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GATE_BUS(HCLK_UHOST, "hclk_uhost", "hclk", HCLK_GATE, 29),
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GATE_BUS(HCLK_SECUR, "hclk_secur", "hclk", HCLK_GATE, 28),
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GATE_BUS(HCLK_SDMA1, "hclk_sdma1", "hclk", HCLK_GATE, 27),
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GATE_BUS(HCLK_SDMA0, "hclk_sdma0", "hclk", HCLK_GATE, 26),
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GATE_ON(HCLK_DDR1, "hclk_ddr1", "hclk", HCLK_GATE, 24),
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GATE_BUS(HCLK_USB, "hclk_usb", "hclk", HCLK_GATE, 20),
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GATE_BUS(HCLK_HSMMC2, "hclk_hsmmc2", "hclk", HCLK_GATE, 19),
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GATE_BUS(HCLK_HSMMC1, "hclk_hsmmc1", "hclk", HCLK_GATE, 18),
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GATE_BUS(HCLK_HSMMC0, "hclk_hsmmc0", "hclk", HCLK_GATE, 17),
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GATE_BUS(HCLK_MDP, "hclk_mdp", "hclk", HCLK_GATE, 16),
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GATE_BUS(HCLK_DHOST, "hclk_dhost", "hclk", HCLK_GATE, 15),
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GATE_BUS(HCLK_IHOST, "hclk_ihost", "hclk", HCLK_GATE, 14),
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GATE_BUS(HCLK_DMA1, "hclk_dma1", "hclk", HCLK_GATE, 13),
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GATE_BUS(HCLK_DMA0, "hclk_dma0", "hclk", HCLK_GATE, 12),
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GATE_BUS(HCLK_JPEG, "hclk_jpeg", "hclk", HCLK_GATE, 11),
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GATE_BUS(HCLK_CAMIF, "hclk_camif", "hclk", HCLK_GATE, 10),
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GATE_BUS(HCLK_SCALER, "hclk_scaler", "hclk", HCLK_GATE, 9),
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GATE_BUS(HCLK_2D, "hclk_2d", "hclk", HCLK_GATE, 8),
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GATE_BUS(HCLK_TV, "hclk_tv", "hclk", HCLK_GATE, 7),
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GATE_BUS(HCLK_POST0, "hclk_post0", "hclk", HCLK_GATE, 5),
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GATE_BUS(HCLK_ROT, "hclk_rot", "hclk", HCLK_GATE, 4),
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GATE_BUS(HCLK_LCD, "hclk_lcd", "hclk", HCLK_GATE, 3),
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GATE_BUS(HCLK_TZIC, "hclk_tzic", "hclk", HCLK_GATE, 2),
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GATE_ON(HCLK_INTC, "hclk_intc", "hclk", HCLK_GATE, 1),
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GATE_ON(PCLK_SKEY, "pclk_skey", "pclk", PCLK_GATE, 24),
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GATE_ON(PCLK_CHIPID, "pclk_chipid", "pclk", PCLK_GATE, 23),
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GATE_BUS(PCLK_SPI1, "pclk_spi1", "pclk", PCLK_GATE, 22),
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GATE_BUS(PCLK_SPI0, "pclk_spi0", "pclk", PCLK_GATE, 21),
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GATE_BUS(PCLK_HSIRX, "pclk_hsirx", "pclk", PCLK_GATE, 20),
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GATE_BUS(PCLK_HSITX, "pclk_hsitx", "pclk", PCLK_GATE, 19),
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GATE_ON(PCLK_GPIO, "pclk_gpio", "pclk", PCLK_GATE, 18),
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GATE_BUS(PCLK_IIC0, "pclk_iic0", "pclk", PCLK_GATE, 17),
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GATE_BUS(PCLK_IIS1, "pclk_iis1", "pclk", PCLK_GATE, 16),
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GATE_BUS(PCLK_IIS0, "pclk_iis0", "pclk", PCLK_GATE, 15),
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GATE_BUS(PCLK_AC97, "pclk_ac97", "pclk", PCLK_GATE, 14),
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GATE_BUS(PCLK_TZPC, "pclk_tzpc", "pclk", PCLK_GATE, 13),
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GATE_BUS(PCLK_TSADC, "pclk_tsadc", "pclk", PCLK_GATE, 12),
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GATE_BUS(PCLK_KEYPAD, "pclk_keypad", "pclk", PCLK_GATE, 11),
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GATE_BUS(PCLK_IRDA, "pclk_irda", "pclk", PCLK_GATE, 10),
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GATE_BUS(PCLK_PCM1, "pclk_pcm1", "pclk", PCLK_GATE, 9),
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GATE_BUS(PCLK_PCM0, "pclk_pcm0", "pclk", PCLK_GATE, 8),
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GATE_BUS(PCLK_PWM, "pclk_pwm", "pclk", PCLK_GATE, 7),
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GATE_BUS(PCLK_RTC, "pclk_rtc", "pclk", PCLK_GATE, 6),
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GATE_BUS(PCLK_WDT, "pclk_wdt", "pclk", PCLK_GATE, 5),
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GATE_BUS(PCLK_UART3, "pclk_uart3", "pclk", PCLK_GATE, 4),
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GATE_BUS(PCLK_UART2, "pclk_uart2", "pclk", PCLK_GATE, 3),
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GATE_BUS(PCLK_UART1, "pclk_uart1", "pclk", PCLK_GATE, 2),
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GATE_BUS(PCLK_UART0, "pclk_uart0", "pclk", PCLK_GATE, 1),
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GATE_BUS(PCLK_MFC, "pclk_mfc", "pclk", PCLK_GATE, 0),
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GATE_SCLK(SCLK_UHOST, "sclk_uhost", "dout_uhost", SCLK_GATE, 30),
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GATE_SCLK(SCLK_MMC2_48, "sclk_mmc2_48", "clk48m", SCLK_GATE, 29),
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GATE_SCLK(SCLK_MMC1_48, "sclk_mmc1_48", "clk48m", SCLK_GATE, 28),
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GATE_SCLK(SCLK_MMC0_48, "sclk_mmc0_48", "clk48m", SCLK_GATE, 27),
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GATE_SCLK(SCLK_MMC2, "sclk_mmc2", "dout_mmc2", SCLK_GATE, 26),
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GATE_SCLK(SCLK_MMC1, "sclk_mmc1", "dout_mmc1", SCLK_GATE, 25),
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GATE_SCLK(SCLK_MMC0, "sclk_mmc0", "dout_mmc0", SCLK_GATE, 24),
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GATE_SCLK(SCLK_SPI1_48, "sclk_spi1_48", "clk48m", SCLK_GATE, 23),
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GATE_SCLK(SCLK_SPI0_48, "sclk_spi0_48", "clk48m", SCLK_GATE, 22),
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GATE_SCLK(SCLK_SPI1, "sclk_spi1", "dout_spi1", SCLK_GATE, 21),
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GATE_SCLK(SCLK_SPI0, "sclk_spi0", "dout_spi0", SCLK_GATE, 20),
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GATE_SCLK(SCLK_DAC27, "sclk_dac27", "mout_dac27", SCLK_GATE, 19),
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GATE_SCLK(SCLK_TV27, "sclk_tv27", "mout_tv27", SCLK_GATE, 18),
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GATE_SCLK(SCLK_SCALER27, "sclk_scaler27", "clk27m", SCLK_GATE, 17),
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GATE_SCLK(SCLK_SCALER, "sclk_scaler", "dout_scaler", SCLK_GATE, 16),
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GATE_SCLK(SCLK_LCD27, "sclk_lcd27", "clk27m", SCLK_GATE, 15),
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GATE_SCLK(SCLK_LCD, "sclk_lcd", "dout_lcd", SCLK_GATE, 14),
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GATE_SCLK(SCLK_POST0_27, "sclk_post0_27", "clk27m", SCLK_GATE, 12),
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GATE_SCLK(SCLK_POST0, "sclk_post0", "dout_lcd", SCLK_GATE, 10),
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GATE_SCLK(SCLK_AUDIO1, "sclk_audio1", "dout_audio1", SCLK_GATE, 9),
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GATE_SCLK(SCLK_AUDIO0, "sclk_audio0", "dout_audio0", SCLK_GATE, 8),
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GATE_SCLK(SCLK_SECUR, "sclk_secur", "dout_secur", SCLK_GATE, 7),
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GATE_SCLK(SCLK_IRDA, "sclk_irda", "dout_irda", SCLK_GATE, 6),
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GATE_SCLK(SCLK_UART, "sclk_uart", "dout_uart", SCLK_GATE, 5),
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GATE_SCLK(SCLK_MFC, "sclk_mfc", "dout_mfc", SCLK_GATE, 3),
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GATE_SCLK(SCLK_CAM, "sclk_cam", "dout_cam", SCLK_GATE, 2),
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GATE_SCLK(SCLK_JPEG, "sclk_jpeg", "dout_jpeg", SCLK_GATE, 1),
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};
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/* List of clock gates present on S3C6400. */
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GATE_CLOCKS(s3c6400_gate_clks) __initdata = {
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GATE_ON(HCLK_DDR0, "hclk_ddr0", "hclk", HCLK_GATE, 23),
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GATE_SCLK(SCLK_ONENAND, "sclk_onenand", "parent", SCLK_GATE, 4),
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};
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/* List of clock gates present on S3C6410. */
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GATE_CLOCKS(s3c6410_gate_clks) __initdata = {
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GATE_BUS(HCLK_3DSE, "hclk_3dse", "hclk", HCLK_GATE, 31),
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GATE_ON(HCLK_IROM, "hclk_irom", "hclk", HCLK_GATE, 25),
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GATE_ON(HCLK_MEM1, "hclk_mem1", "hclk", HCLK_GATE, 22),
|
|
GATE_ON(HCLK_MEM0, "hclk_mem0", "hclk", HCLK_GATE, 21),
|
|
GATE_BUS(HCLK_MFC, "hclk_mfc", "hclk", HCLK_GATE, 0),
|
|
GATE_BUS(PCLK_IIC1, "pclk_iic1", "pclk", PCLK_GATE, 27),
|
|
GATE_BUS(PCLK_IIS2, "pclk_iis2", "pclk", PCLK_GATE, 26),
|
|
GATE_SCLK(SCLK_FIMC, "sclk_fimc", "dout_fimc", SCLK_GATE, 13),
|
|
GATE_SCLK(SCLK_AUDIO2, "sclk_audio2", "dout_audio2", SCLK_GATE, 11),
|
|
GATE_BUS(MEM0_CFCON, "mem0_cfcon", "hclk_mem0", MEM0_GATE, 5),
|
|
GATE_BUS(MEM0_ONENAND1, "mem0_onenand1", "hclk_mem0", MEM0_GATE, 4),
|
|
GATE_BUS(MEM0_ONENAND0, "mem0_onenand0", "hclk_mem0", MEM0_GATE, 3),
|
|
GATE_BUS(MEM0_NFCON, "mem0_nfcon", "hclk_mem0", MEM0_GATE, 2),
|
|
GATE_ON(MEM0_SROM, "mem0_srom", "hclk_mem0", MEM0_GATE, 1),
|
|
};
|
|
|
|
/* List of PLL clocks. */
|
|
static struct samsung_pll_clock s3c64xx_pll_clks[] __initdata = {
|
|
PLL(pll_6552, FOUT_APLL, "fout_apll", "fin_pll",
|
|
APLL_LOCK, APLL_CON, NULL),
|
|
PLL(pll_6552, FOUT_MPLL, "fout_mpll", "fin_pll",
|
|
MPLL_LOCK, MPLL_CON, NULL),
|
|
PLL(pll_6553, FOUT_EPLL, "fout_epll", "fin_pll",
|
|
EPLL_LOCK, EPLL_CON0, NULL),
|
|
};
|
|
|
|
/* Aliases for common s3c64xx clocks. */
|
|
static struct samsung_clock_alias s3c64xx_clock_aliases[] = {
|
|
ALIAS(FOUT_APLL, NULL, "fout_apll"),
|
|
ALIAS(FOUT_MPLL, NULL, "fout_mpll"),
|
|
ALIAS(FOUT_EPLL, NULL, "fout_epll"),
|
|
ALIAS(MOUT_EPLL, NULL, "mout_epll"),
|
|
ALIAS(DOUT_MPLL, NULL, "dout_mpll"),
|
|
ALIAS(HCLKX2, NULL, "hclk2"),
|
|
ALIAS(HCLK, NULL, "hclk"),
|
|
ALIAS(PCLK, NULL, "pclk"),
|
|
ALIAS(PCLK, NULL, "clk_uart_baud2"),
|
|
ALIAS(ARMCLK, NULL, "armclk"),
|
|
ALIAS(HCLK_UHOST, "s3c2410-ohci", "usb-host"),
|
|
ALIAS(HCLK_USB, "s3c-hsotg", "otg"),
|
|
ALIAS(HCLK_HSMMC2, "s3c-sdhci.2", "hsmmc"),
|
|
ALIAS(HCLK_HSMMC2, "s3c-sdhci.2", "mmc_busclk.0"),
|
|
ALIAS(HCLK_HSMMC1, "s3c-sdhci.1", "hsmmc"),
|
|
ALIAS(HCLK_HSMMC1, "s3c-sdhci.1", "mmc_busclk.0"),
|
|
ALIAS(HCLK_HSMMC0, "s3c-sdhci.0", "hsmmc"),
|
|
ALIAS(HCLK_HSMMC0, "s3c-sdhci.0", "mmc_busclk.0"),
|
|
ALIAS(HCLK_DMA1, "dma-pl080s.1", "apb_pclk"),
|
|
ALIAS(HCLK_DMA0, "dma-pl080s.0", "apb_pclk"),
|
|
ALIAS(HCLK_CAMIF, "s3c-camif", "camif"),
|
|
ALIAS(HCLK_LCD, "s3c-fb", "lcd"),
|
|
ALIAS(PCLK_SPI1, "s3c6410-spi.1", "spi"),
|
|
ALIAS(PCLK_SPI0, "s3c6410-spi.0", "spi"),
|
|
ALIAS(PCLK_IIC0, "s3c2440-i2c.0", "i2c"),
|
|
ALIAS(PCLK_IIS1, "samsung-i2s.1", "iis"),
|
|
ALIAS(PCLK_IIS0, "samsung-i2s.0", "iis"),
|
|
ALIAS(PCLK_AC97, "samsung-ac97", "ac97"),
|
|
ALIAS(PCLK_TSADC, "s3c64xx-adc", "adc"),
|
|
ALIAS(PCLK_KEYPAD, "samsung-keypad", "keypad"),
|
|
ALIAS(PCLK_PCM1, "samsung-pcm.1", "pcm"),
|
|
ALIAS(PCLK_PCM0, "samsung-pcm.0", "pcm"),
|
|
ALIAS(PCLK_PWM, NULL, "timers"),
|
|
ALIAS(PCLK_RTC, "s3c64xx-rtc", "rtc"),
|
|
ALIAS(PCLK_WDT, NULL, "watchdog"),
|
|
ALIAS(PCLK_UART3, "s3c6400-uart.3", "uart"),
|
|
ALIAS(PCLK_UART2, "s3c6400-uart.2", "uart"),
|
|
ALIAS(PCLK_UART1, "s3c6400-uart.1", "uart"),
|
|
ALIAS(PCLK_UART0, "s3c6400-uart.0", "uart"),
|
|
ALIAS(SCLK_UHOST, "s3c2410-ohci", "usb-bus-host"),
|
|
ALIAS(SCLK_MMC2, "s3c-sdhci.2", "mmc_busclk.2"),
|
|
ALIAS(SCLK_MMC1, "s3c-sdhci.1", "mmc_busclk.2"),
|
|
ALIAS(SCLK_MMC0, "s3c-sdhci.0", "mmc_busclk.2"),
|
|
ALIAS(PCLK_SPI1, "s3c6410-spi.1", "spi_busclk0"),
|
|
ALIAS(SCLK_SPI1, "s3c6410-spi.1", "spi_busclk2"),
|
|
ALIAS(PCLK_SPI0, "s3c6410-spi.0", "spi_busclk0"),
|
|
ALIAS(SCLK_SPI0, "s3c6410-spi.0", "spi_busclk2"),
|
|
ALIAS(SCLK_AUDIO1, "samsung-pcm.1", "audio-bus"),
|
|
ALIAS(SCLK_AUDIO1, "samsung-i2s.1", "audio-bus"),
|
|
ALIAS(SCLK_AUDIO0, "samsung-pcm.0", "audio-bus"),
|
|
ALIAS(SCLK_AUDIO0, "samsung-i2s.0", "audio-bus"),
|
|
ALIAS(SCLK_UART, NULL, "clk_uart_baud3"),
|
|
ALIAS(SCLK_CAM, "s3c-camif", "camera"),
|
|
};
|
|
|
|
/* Aliases for s3c6400-specific clocks. */
|
|
static struct samsung_clock_alias s3c6400_clock_aliases[] = {
|
|
/* Nothing to place here yet. */
|
|
};
|
|
|
|
/* Aliases for s3c6410-specific clocks. */
|
|
static struct samsung_clock_alias s3c6410_clock_aliases[] = {
|
|
ALIAS(PCLK_IIC1, "s3c2440-i2c.1", "i2c"),
|
|
ALIAS(PCLK_IIS2, "samsung-i2s.2", "iis"),
|
|
ALIAS(SCLK_FIMC, "s3c-camif", "fimc"),
|
|
ALIAS(SCLK_AUDIO2, "samsung-i2s.2", "audio-bus"),
|
|
ALIAS(MEM0_SROM, NULL, "srom"),
|
|
};
|
|
|
|
static void __init s3c64xx_clk_register_fixed_ext(
|
|
struct samsung_clk_provider *ctx,
|
|
unsigned long fin_pll_f,
|
|
unsigned long xusbxti_f)
|
|
{
|
|
s3c64xx_fixed_rate_ext_clks[0].fixed_rate = fin_pll_f;
|
|
s3c64xx_fixed_rate_ext_clks[1].fixed_rate = xusbxti_f;
|
|
samsung_clk_register_fixed_rate(ctx, s3c64xx_fixed_rate_ext_clks,
|
|
ARRAY_SIZE(s3c64xx_fixed_rate_ext_clks));
|
|
}
|
|
|
|
/* Register s3c64xx clocks. */
|
|
void __init s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f,
|
|
unsigned long xusbxti_f, bool s3c6400,
|
|
void __iomem *base)
|
|
{
|
|
struct samsung_clk_provider *ctx;
|
|
struct clk_hw **hws;
|
|
|
|
reg_base = base;
|
|
is_s3c6400 = s3c6400;
|
|
|
|
if (np) {
|
|
reg_base = of_iomap(np, 0);
|
|
if (!reg_base)
|
|
panic("%s: failed to map registers\n", __func__);
|
|
}
|
|
|
|
ctx = samsung_clk_init(np, reg_base, NR_CLKS);
|
|
hws = ctx->clk_data.hws;
|
|
|
|
/* Register external clocks. */
|
|
if (!np)
|
|
s3c64xx_clk_register_fixed_ext(ctx, xtal_f, xusbxti_f);
|
|
|
|
/* Register PLLs. */
|
|
samsung_clk_register_pll(ctx, s3c64xx_pll_clks,
|
|
ARRAY_SIZE(s3c64xx_pll_clks), reg_base);
|
|
|
|
/* Register common internal clocks. */
|
|
samsung_clk_register_fixed_rate(ctx, s3c64xx_fixed_rate_clks,
|
|
ARRAY_SIZE(s3c64xx_fixed_rate_clks));
|
|
samsung_clk_register_mux(ctx, s3c64xx_mux_clks,
|
|
ARRAY_SIZE(s3c64xx_mux_clks));
|
|
samsung_clk_register_div(ctx, s3c64xx_div_clks,
|
|
ARRAY_SIZE(s3c64xx_div_clks));
|
|
samsung_clk_register_gate(ctx, s3c64xx_gate_clks,
|
|
ARRAY_SIZE(s3c64xx_gate_clks));
|
|
|
|
/* Register SoC-specific clocks. */
|
|
if (is_s3c6400) {
|
|
samsung_clk_register_mux(ctx, s3c6400_mux_clks,
|
|
ARRAY_SIZE(s3c6400_mux_clks));
|
|
samsung_clk_register_div(ctx, s3c6400_div_clks,
|
|
ARRAY_SIZE(s3c6400_div_clks));
|
|
samsung_clk_register_gate(ctx, s3c6400_gate_clks,
|
|
ARRAY_SIZE(s3c6400_gate_clks));
|
|
samsung_clk_register_alias(ctx, s3c6400_clock_aliases,
|
|
ARRAY_SIZE(s3c6400_clock_aliases));
|
|
} else {
|
|
samsung_clk_register_mux(ctx, s3c6410_mux_clks,
|
|
ARRAY_SIZE(s3c6410_mux_clks));
|
|
samsung_clk_register_div(ctx, s3c6410_div_clks,
|
|
ARRAY_SIZE(s3c6410_div_clks));
|
|
samsung_clk_register_gate(ctx, s3c6410_gate_clks,
|
|
ARRAY_SIZE(s3c6410_gate_clks));
|
|
samsung_clk_register_alias(ctx, s3c6410_clock_aliases,
|
|
ARRAY_SIZE(s3c6410_clock_aliases));
|
|
}
|
|
|
|
samsung_clk_register_alias(ctx, s3c64xx_clock_aliases,
|
|
ARRAY_SIZE(s3c64xx_clock_aliases));
|
|
|
|
samsung_clk_sleep_init(reg_base, s3c64xx_clk_regs,
|
|
ARRAY_SIZE(s3c64xx_clk_regs));
|
|
if (!is_s3c6400)
|
|
samsung_clk_sleep_init(reg_base, s3c6410_clk_regs,
|
|
ARRAY_SIZE(s3c6410_clk_regs));
|
|
|
|
samsung_clk_of_add_provider(np, ctx);
|
|
|
|
pr_info("%s clocks: apll = %lu, mpll = %lu\n"
|
|
"\tepll = %lu, arm_clk = %lu\n",
|
|
is_s3c6400 ? "S3C6400" : "S3C6410",
|
|
clk_hw_get_rate(hws[MOUT_APLL]),
|
|
clk_hw_get_rate(hws[MOUT_MPLL]),
|
|
clk_hw_get_rate(hws[MOUT_EPLL]),
|
|
clk_hw_get_rate(hws[ARMCLK]));
|
|
}
|
|
|
|
static void __init s3c6400_clk_init(struct device_node *np)
|
|
{
|
|
s3c64xx_clk_init(np, 0, 0, true, NULL);
|
|
}
|
|
CLK_OF_DECLARE(s3c6400_clk, "samsung,s3c6400-clock", s3c6400_clk_init);
|
|
|
|
static void __init s3c6410_clk_init(struct device_node *np)
|
|
{
|
|
s3c64xx_clk_init(np, 0, 0, false, NULL);
|
|
}
|
|
CLK_OF_DECLARE(s3c6410_clk, "samsung,s3c6410-clock", s3c6410_clk_init);
|