linux/drivers/clk/uniphier/clk-uniphier-sys.c
Kunihiko Hayashi ff388ee365 clk: uniphier: add clock frequency support for SPI
Add clock control for SPI controller on UniPhier SoCs.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-07-25 16:26:18 -07:00

312 lines
13 KiB
C

/*
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/stddef.h>
#include "clk-uniphier.h"
#define UNIPHIER_LD4_SYS_CLK_SD \
UNIPHIER_CLK_FACTOR("sd-200m", -1, "spll", 1, 8), \
UNIPHIER_CLK_FACTOR("sd-133m", -1, "vpll27a", 1, 2)
#define UNIPHIER_PRO5_SYS_CLK_SD \
UNIPHIER_CLK_FACTOR("sd-200m", -1, "spll", 1, 12), \
UNIPHIER_CLK_FACTOR("sd-133m", -1, "spll", 1, 18)
#define UNIPHIER_LD20_SYS_CLK_SD \
UNIPHIER_CLK_FACTOR("sd-200m", -1, "spll", 1, 10), \
UNIPHIER_CLK_FACTOR("sd-133m", -1, "spll", 1, 15)
#define UNIPHIER_LD4_SYS_CLK_NAND(idx) \
UNIPHIER_CLK_FACTOR("nand-50m", -1, "spll", 1, 32), \
UNIPHIER_CLK_GATE("nand", (idx), "nand-50m", 0x2104, 2)
#define UNIPHIER_PRO5_SYS_CLK_NAND(idx) \
UNIPHIER_CLK_FACTOR("nand-50m", -1, "spll", 1, 48), \
UNIPHIER_CLK_GATE("nand", (idx), "nand-50m", 0x2104, 2)
#define UNIPHIER_LD11_SYS_CLK_NAND(idx) \
UNIPHIER_CLK_FACTOR("nand-50m", -1, "spll", 1, 40), \
UNIPHIER_CLK_GATE("nand", (idx), "nand-50m", 0x210c, 0)
#define UNIPHIER_SYS_CLK_NAND_4X(idx) \
UNIPHIER_CLK_FACTOR("nand-4x", (idx), "nand", 4, 1)
#define UNIPHIER_LD11_SYS_CLK_EMMC(idx) \
UNIPHIER_CLK_GATE("emmc", (idx), NULL, 0x210c, 2)
#define UNIPHIER_LD4_SYS_CLK_STDMAC(idx) \
UNIPHIER_CLK_GATE("stdmac", (idx), NULL, 0x2104, 10)
#define UNIPHIER_LD11_SYS_CLK_STDMAC(idx) \
UNIPHIER_CLK_GATE("stdmac", (idx), NULL, 0x210c, 8)
#define UNIPHIER_LD11_SYS_CLK_HSC(idx) \
UNIPHIER_CLK_GATE("hsc", (idx), NULL, 0x210c, 9)
#define UNIPHIER_PRO4_SYS_CLK_GIO(idx) \
UNIPHIER_CLK_GATE("gio", (idx), NULL, 0x2104, 6)
#define UNIPHIER_PRO4_SYS_CLK_USB3(idx, ch) \
UNIPHIER_CLK_GATE("usb3" #ch, (idx), NULL, 0x2104, 16 + (ch))
#define UNIPHIER_PRO4_SYS_CLK_AIO(idx) \
UNIPHIER_CLK_FACTOR("aio-io200m", -1, "spll", 1, 8), \
UNIPHIER_CLK_GATE("aio", (idx), "aio-io200m", 0x2104, 13)
#define UNIPHIER_PRO5_SYS_CLK_AIO(idx) \
UNIPHIER_CLK_FACTOR("aio-io200m", -1, "spll", 1, 12), \
UNIPHIER_CLK_GATE("aio", (idx), "aio-io200m", 0x2104, 13)
#define UNIPHIER_LD11_SYS_CLK_AIO(idx) \
UNIPHIER_CLK_FACTOR("aio-io200m", -1, "spll", 1, 10), \
UNIPHIER_CLK_GATE("aio", (idx), "aio-io200m", 0x2108, 0)
#define UNIPHIER_LD11_SYS_CLK_EVEA(idx) \
UNIPHIER_CLK_FACTOR("evea-io100m", -1, "spll", 1, 20), \
UNIPHIER_CLK_GATE("evea", (idx), "evea-io100m", 0x2108, 1)
#define UNIPHIER_LD11_SYS_CLK_EXIV(idx) \
UNIPHIER_CLK_FACTOR("exiv-io200m", -1, "spll", 1, 10), \
UNIPHIER_CLK_GATE("exiv", (idx), "exiv-io200m", 0x2110, 2)
#define UNIPHIER_PRO4_SYS_CLK_ETHER(idx) \
UNIPHIER_CLK_GATE("ether", (idx), NULL, 0x2104, 12)
#define UNIPHIER_LD11_SYS_CLK_ETHER(idx) \
UNIPHIER_CLK_GATE("ether", (idx), NULL, 0x210c, 6)
const struct uniphier_clk_data uniphier_ld4_sys_clk_data[] = {
UNIPHIER_CLK_FACTOR("spll", -1, "ref", 65, 1), /* 1597.44 MHz */
UNIPHIER_CLK_FACTOR("upll", -1, "ref", 6000, 512), /* 288 MHz */
UNIPHIER_CLK_FACTOR("a2pll", -1, "ref", 24, 1), /* 589.824 MHz */
UNIPHIER_CLK_FACTOR("vpll27a", -1, "ref", 5625, 512), /* 270 MHz */
UNIPHIER_CLK_FACTOR("uart", 0, "a2pll", 1, 16),
UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 16),
UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 32),
UNIPHIER_LD4_SYS_CLK_NAND(2),
UNIPHIER_SYS_CLK_NAND_4X(3),
UNIPHIER_LD4_SYS_CLK_SD,
UNIPHIER_CLK_FACTOR("usb2", -1, "upll", 1, 12),
UNIPHIER_LD4_SYS_CLK_STDMAC(8), /* Ether, HSC, MIO */
{ /* sentinel */ }
};
const struct uniphier_clk_data uniphier_pro4_sys_clk_data[] = {
UNIPHIER_CLK_FACTOR("spll", -1, "ref", 64, 1), /* 1600 MHz */
UNIPHIER_CLK_FACTOR("upll", -1, "ref", 288, 25), /* 288 MHz */
UNIPHIER_CLK_FACTOR("a2pll", -1, "upll", 256, 125), /* 589.824 MHz */
UNIPHIER_CLK_FACTOR("vpll27a", -1, "ref", 270, 25), /* 270 MHz */
UNIPHIER_CLK_FACTOR("gpll", -1, "ref", 10, 1), /* 250 MHz */
UNIPHIER_CLK_FACTOR("uart", 0, "a2pll", 1, 8),
UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 32),
UNIPHIER_CLK_FACTOR("spi", 1, "spll", 1, 32),
UNIPHIER_LD4_SYS_CLK_NAND(2),
UNIPHIER_SYS_CLK_NAND_4X(3),
UNIPHIER_LD4_SYS_CLK_SD,
UNIPHIER_CLK_FACTOR("usb2", -1, "upll", 1, 12),
UNIPHIER_PRO4_SYS_CLK_ETHER(6),
UNIPHIER_CLK_GATE("ether-gb", 7, "gpll", 0x2104, 5),
UNIPHIER_LD4_SYS_CLK_STDMAC(8), /* HSC, MIO, RLE */
UNIPHIER_CLK_GATE("ether-phy", 10, "ref", 0x2260, 0),
UNIPHIER_PRO4_SYS_CLK_GIO(12), /* Ether, SATA, USB3 */
UNIPHIER_PRO4_SYS_CLK_USB3(14, 0),
UNIPHIER_PRO4_SYS_CLK_USB3(15, 1),
UNIPHIER_CLK_FACTOR("usb30-hsphy0", 16, "upll", 1, 12),
UNIPHIER_CLK_FACTOR("usb30-ssphy0", 17, "ref", 1, 1),
UNIPHIER_CLK_FACTOR("usb31-ssphy0", 20, "ref", 1, 1),
UNIPHIER_CLK_GATE("sata0", 28, NULL, 0x2104, 18),
UNIPHIER_CLK_GATE("sata1", 29, NULL, 0x2104, 19),
UNIPHIER_PRO4_SYS_CLK_AIO(40),
{ /* sentinel */ }
};
const struct uniphier_clk_data uniphier_sld8_sys_clk_data[] = {
UNIPHIER_CLK_FACTOR("spll", -1, "ref", 64, 1), /* 1600 MHz */
UNIPHIER_CLK_FACTOR("upll", -1, "ref", 288, 25), /* 288 MHz */
UNIPHIER_CLK_FACTOR("vpll27a", -1, "ref", 270, 25), /* 270 MHz */
UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 20),
UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 16),
UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 32),
UNIPHIER_LD4_SYS_CLK_NAND(2),
UNIPHIER_SYS_CLK_NAND_4X(3),
UNIPHIER_LD4_SYS_CLK_SD,
UNIPHIER_CLK_FACTOR("usb2", -1, "upll", 1, 12),
UNIPHIER_LD4_SYS_CLK_STDMAC(8), /* Ether, HSC, MIO */
{ /* sentinel */ }
};
const struct uniphier_clk_data uniphier_pro5_sys_clk_data[] = {
UNIPHIER_CLK_FACTOR("spll", -1, "ref", 120, 1), /* 2400 MHz */
UNIPHIER_CLK_FACTOR("dapll1", -1, "ref", 128, 1), /* 2560 MHz */
UNIPHIER_CLK_FACTOR("dapll2", -1, "dapll1", 144, 125), /* 2949.12 MHz */
UNIPHIER_CLK_FACTOR("uart", 0, "dapll2", 1, 40),
UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 48),
UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 48),
UNIPHIER_PRO5_SYS_CLK_NAND(2),
UNIPHIER_SYS_CLK_NAND_4X(3),
UNIPHIER_PRO5_SYS_CLK_SD,
UNIPHIER_LD4_SYS_CLK_STDMAC(8), /* HSC */
UNIPHIER_PRO4_SYS_CLK_GIO(12), /* PCIe, USB3 */
UNIPHIER_PRO4_SYS_CLK_USB3(14, 0),
UNIPHIER_PRO4_SYS_CLK_USB3(15, 1),
UNIPHIER_CLK_GATE("pcie", 24, NULL, 0x2108, 2),
UNIPHIER_PRO5_SYS_CLK_AIO(40),
{ /* sentinel */ }
};
const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[] = {
UNIPHIER_CLK_FACTOR("spll", -1, "ref", 96, 1), /* 2400 MHz */
UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 27),
UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 48),
UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 48),
UNIPHIER_PRO5_SYS_CLK_NAND(2),
UNIPHIER_SYS_CLK_NAND_4X(3),
UNIPHIER_PRO5_SYS_CLK_SD,
UNIPHIER_PRO4_SYS_CLK_ETHER(6),
UNIPHIER_LD4_SYS_CLK_STDMAC(8), /* HSC, RLE */
/* GIO is always clock-enabled: no function for 0x2104 bit6 */
UNIPHIER_PRO4_SYS_CLK_USB3(14, 0),
UNIPHIER_PRO4_SYS_CLK_USB3(15, 1),
/* The document mentions 0x2104 bit 18, but not functional */
UNIPHIER_CLK_GATE("usb30-hsphy0", 16, NULL, 0x2104, 19),
UNIPHIER_CLK_FACTOR("usb30-ssphy0", 17, "ref", 1, 1),
UNIPHIER_CLK_FACTOR("usb30-ssphy1", 18, "ref", 1, 1),
UNIPHIER_CLK_GATE("usb31-hsphy0", 20, NULL, 0x2104, 20),
UNIPHIER_CLK_FACTOR("usb31-ssphy0", 21, "ref", 1, 1),
UNIPHIER_CLK_GATE("sata0", 28, NULL, 0x2104, 22),
UNIPHIER_PRO5_SYS_CLK_AIO(40),
{ /* sentinel */ }
};
const struct uniphier_clk_data uniphier_ld11_sys_clk_data[] = {
UNIPHIER_CLK_FACTOR("cpll", -1, "ref", 392, 5), /* 1960 MHz */
UNIPHIER_CLK_FACTOR("mpll", -1, "ref", 64, 1), /* 1600 MHz */
UNIPHIER_CLK_FACTOR("spll", -1, "ref", 80, 1), /* 2000 MHz */
UNIPHIER_CLK_FACTOR("vspll", -1, "ref", 80, 1), /* 2000 MHz */
UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 34),
UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 40),
UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 40),
UNIPHIER_LD11_SYS_CLK_NAND(2),
UNIPHIER_SYS_CLK_NAND_4X(3),
UNIPHIER_LD11_SYS_CLK_EMMC(4),
/* Index 5 reserved for eMMC PHY */
UNIPHIER_LD11_SYS_CLK_ETHER(6),
UNIPHIER_LD11_SYS_CLK_STDMAC(8), /* HSC, MIO */
UNIPHIER_LD11_SYS_CLK_HSC(9),
UNIPHIER_CLK_FACTOR("usb2", -1, "ref", 24, 25),
UNIPHIER_LD11_SYS_CLK_AIO(40),
UNIPHIER_LD11_SYS_CLK_EVEA(41),
UNIPHIER_LD11_SYS_CLK_EXIV(42),
/* CPU gears */
UNIPHIER_CLK_DIV4("cpll", 2, 3, 4, 8),
UNIPHIER_CLK_DIV4("mpll", 2, 3, 4, 8),
UNIPHIER_CLK_DIV3("spll", 3, 4, 8),
/* Note: both gear1 and gear4 are spll/4. This is not a bug. */
UNIPHIER_CLK_CPUGEAR("cpu-ca53", 33, 0x8080, 0xf, 8,
"cpll/2", "spll/4", "cpll/3", "spll/3",
"spll/4", "spll/8", "cpll/4", "cpll/8"),
UNIPHIER_CLK_CPUGEAR("cpu-ipp", 34, 0x8100, 0xf, 8,
"mpll/2", "spll/4", "mpll/3", "spll/3",
"spll/4", "spll/8", "mpll/4", "mpll/8"),
{ /* sentinel */ }
};
const struct uniphier_clk_data uniphier_ld20_sys_clk_data[] = {
UNIPHIER_CLK_FACTOR("cpll", -1, "ref", 88, 1), /* ARM: 2200 MHz */
UNIPHIER_CLK_FACTOR("gppll", -1, "ref", 52, 1), /* Mali: 1300 MHz */
UNIPHIER_CLK_FACTOR("mpll", -1, "ref", 64, 1), /* Codec: 1600 MHz */
UNIPHIER_CLK_FACTOR("spll", -1, "ref", 80, 1), /* 2000 MHz */
UNIPHIER_CLK_FACTOR("s2pll", -1, "ref", 88, 1), /* IPP: 2200 MHz */
UNIPHIER_CLK_FACTOR("vppll", -1, "ref", 504, 5), /* 2520 MHz */
UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 34),
UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 40),
UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 40),
UNIPHIER_LD11_SYS_CLK_NAND(2),
UNIPHIER_SYS_CLK_NAND_4X(3),
UNIPHIER_LD11_SYS_CLK_EMMC(4),
/* Index 5 reserved for eMMC PHY */
UNIPHIER_LD20_SYS_CLK_SD,
UNIPHIER_LD11_SYS_CLK_ETHER(6),
UNIPHIER_LD11_SYS_CLK_STDMAC(8), /* HSC */
UNIPHIER_LD11_SYS_CLK_HSC(9),
/* GIO is always clock-enabled: no function for 0x210c bit5 */
/*
* clock for USB Link is enabled by the logic "OR" of bit 14 and bit 15.
* We do not use bit 15 here.
*/
UNIPHIER_CLK_GATE("usb30", 14, NULL, 0x210c, 14),
UNIPHIER_CLK_GATE("usb30-hsphy0", 16, NULL, 0x210c, 12),
UNIPHIER_CLK_GATE("usb30-hsphy1", 17, NULL, 0x210c, 13),
UNIPHIER_CLK_FACTOR("usb30-ssphy0", 18, "ref", 1, 1),
UNIPHIER_CLK_FACTOR("usb30-ssphy1", 19, "ref", 1, 1),
UNIPHIER_CLK_GATE("pcie", 24, NULL, 0x210c, 4),
UNIPHIER_LD11_SYS_CLK_AIO(40),
UNIPHIER_LD11_SYS_CLK_EVEA(41),
UNIPHIER_LD11_SYS_CLK_EXIV(42),
/* CPU gears */
UNIPHIER_CLK_DIV4("cpll", 2, 3, 4, 8),
UNIPHIER_CLK_DIV4("spll", 2, 3, 4, 8),
UNIPHIER_CLK_DIV4("s2pll", 2, 3, 4, 8),
UNIPHIER_CLK_CPUGEAR("cpu-ca72", 32, 0x8000, 0xf, 8,
"cpll/2", "spll/2", "cpll/3", "spll/3",
"spll/4", "spll/8", "cpll/4", "cpll/8"),
UNIPHIER_CLK_CPUGEAR("cpu-ca53", 33, 0x8080, 0xf, 8,
"cpll/2", "spll/2", "cpll/3", "spll/3",
"spll/4", "spll/8", "cpll/4", "cpll/8"),
UNIPHIER_CLK_CPUGEAR("cpu-ipp", 34, 0x8100, 0xf, 8,
"s2pll/2", "spll/2", "s2pll/3", "spll/3",
"spll/4", "spll/8", "s2pll/4", "s2pll/8"),
{ /* sentinel */ }
};
const struct uniphier_clk_data uniphier_pxs3_sys_clk_data[] = {
UNIPHIER_CLK_FACTOR("cpll", -1, "ref", 104, 1), /* ARM: 2600 MHz */
UNIPHIER_CLK_FACTOR("spll", -1, "ref", 80, 1), /* 2000 MHz */
UNIPHIER_CLK_FACTOR("s2pll", -1, "ref", 88, 1), /* IPP: 2400 MHz */
UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 34),
UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 40),
UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 40),
UNIPHIER_LD20_SYS_CLK_SD,
UNIPHIER_LD11_SYS_CLK_NAND(2),
UNIPHIER_SYS_CLK_NAND_4X(3),
UNIPHIER_LD11_SYS_CLK_EMMC(4),
UNIPHIER_CLK_GATE("ether0", 6, NULL, 0x210c, 9),
UNIPHIER_CLK_GATE("ether1", 7, NULL, 0x210c, 10),
UNIPHIER_CLK_GATE("usb30", 12, NULL, 0x210c, 4), /* =GIO0 */
UNIPHIER_CLK_GATE("usb31-0", 13, NULL, 0x210c, 5), /* =GIO1 */
UNIPHIER_CLK_GATE("usb31-1", 14, NULL, 0x210c, 6), /* =GIO1-1 */
UNIPHIER_CLK_GATE("usb30-hsphy0", 16, NULL, 0x210c, 16),
UNIPHIER_CLK_GATE("usb30-ssphy0", 17, NULL, 0x210c, 18),
UNIPHIER_CLK_GATE("usb30-ssphy1", 18, NULL, 0x210c, 20),
UNIPHIER_CLK_GATE("usb31-hsphy0", 20, NULL, 0x210c, 17),
UNIPHIER_CLK_GATE("usb31-ssphy0", 21, NULL, 0x210c, 19),
UNIPHIER_CLK_GATE("pcie", 24, NULL, 0x210c, 3),
UNIPHIER_CLK_GATE("sata0", 28, NULL, 0x210c, 7),
UNIPHIER_CLK_GATE("sata1", 29, NULL, 0x210c, 8),
UNIPHIER_CLK_GATE("sata-phy", 30, NULL, 0x210c, 21),
/* CPU gears */
UNIPHIER_CLK_DIV4("cpll", 2, 3, 4, 8),
UNIPHIER_CLK_DIV4("spll", 2, 3, 4, 8),
UNIPHIER_CLK_DIV4("s2pll", 2, 3, 4, 8),
UNIPHIER_CLK_CPUGEAR("cpu-ca53", 33, 0x8080, 0xf, 8,
"cpll/2", "spll/2", "cpll/3", "spll/3",
"spll/4", "spll/8", "cpll/4", "cpll/8"),
UNIPHIER_CLK_CPUGEAR("cpu-ipp", 34, 0x8100, 0xf, 8,
"s2pll/2", "spll/2", "s2pll/3", "spll/3",
"spll/4", "spll/8", "s2pll/4", "s2pll/8"),
{ /* sentinel */ }
};