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linux/drivers/clk/samsung/clk-exynos7885.c
David Virag 45bd8166a1 clk: samsung: Add initial Exynos7885 clock driver 
This is an initial implementation adding basic clocks, such as UART,
USI, I2C, WDT, ect. and their parent clocks. It is heavily based on the
Exynos850 clock driver at 'drivers/clk/samsung/clk-exynos850.c' which
was made by Sam Protsenko, thus the copyright and author lines were
kept.

Bus clocks are enabled by default as well to avoid hangs while trying to
access CMU registers.

Only the parts of CMU_TOP needed for CMU_CORE and CMU_PERI, a bit of
CMU_CORE, and most of CMU_PERI is implemented as of now.

Signed-off-by: David Virag <virag.david003@gmail.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211206153124.427102-7-virag.david003@gmail.com
2021-12-19 23:39:01 +01:00

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2021 Dávid Virág <virag.david003@gmail.com>
* Author: Dávid Virág <virag.david003@gmail.com>
*
* Common Clock Framework support for Exynos7885 SoC.
*/
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <dt-bindings/clock/exynos7885.h>
#include "clk.h"
#include "clk-exynos-arm64.h"
/* ---- CMU_TOP ------------------------------------------------------------- */
/* Register Offset definitions for CMU_TOP (0x12060000) */
#define PLL_LOCKTIME_PLL_SHARED0 0x0000
#define PLL_LOCKTIME_PLL_SHARED1 0x0004
#define PLL_CON0_PLL_SHARED0 0x0100
#define PLL_CON0_PLL_SHARED1 0x0120
#define CLK_CON_MUX_MUX_CLKCMU_CORE_BUS 0x1014
#define CLK_CON_MUX_MUX_CLKCMU_CORE_CCI 0x1018
#define CLK_CON_MUX_MUX_CLKCMU_CORE_G3D 0x101c
#define CLK_CON_MUX_MUX_CLKCMU_PERI_BUS 0x1058
#define CLK_CON_MUX_MUX_CLKCMU_PERI_SPI0 0x105c
#define CLK_CON_MUX_MUX_CLKCMU_PERI_SPI1 0x1060
#define CLK_CON_MUX_MUX_CLKCMU_PERI_UART0 0x1064
#define CLK_CON_MUX_MUX_CLKCMU_PERI_UART1 0x1068
#define CLK_CON_MUX_MUX_CLKCMU_PERI_UART2 0x106c
#define CLK_CON_MUX_MUX_CLKCMU_PERI_USI0 0x1070
#define CLK_CON_MUX_MUX_CLKCMU_PERI_USI1 0x1074
#define CLK_CON_MUX_MUX_CLKCMU_PERI_USI2 0x1078
#define CLK_CON_DIV_CLKCMU_CORE_BUS 0x181c
#define CLK_CON_DIV_CLKCMU_CORE_CCI 0x1820
#define CLK_CON_DIV_CLKCMU_CORE_G3D 0x1824
#define CLK_CON_DIV_CLKCMU_PERI_BUS 0x1874
#define CLK_CON_DIV_CLKCMU_PERI_SPI0 0x1878
#define CLK_CON_DIV_CLKCMU_PERI_SPI1 0x187c
#define CLK_CON_DIV_CLKCMU_PERI_UART0 0x1880
#define CLK_CON_DIV_CLKCMU_PERI_UART1 0x1884
#define CLK_CON_DIV_CLKCMU_PERI_UART2 0x1888
#define CLK_CON_DIV_CLKCMU_PERI_USI0 0x188c
#define CLK_CON_DIV_CLKCMU_PERI_USI1 0x1890
#define CLK_CON_DIV_CLKCMU_PERI_USI2 0x1894
#define CLK_CON_DIV_PLL_SHARED0_DIV2 0x189c
#define CLK_CON_DIV_PLL_SHARED0_DIV3 0x18a0
#define CLK_CON_DIV_PLL_SHARED0_DIV4 0x18a4
#define CLK_CON_DIV_PLL_SHARED0_DIV5 0x18a8
#define CLK_CON_DIV_PLL_SHARED1_DIV2 0x18ac
#define CLK_CON_DIV_PLL_SHARED1_DIV3 0x18b0
#define CLK_CON_DIV_PLL_SHARED1_DIV4 0x18b4
#define CLK_CON_GAT_GATE_CLKCMUC_PERI_UART1 0x2004
#define CLK_CON_GAT_GATE_CLKCMU_CORE_BUS 0x201c
#define CLK_CON_GAT_GATE_CLKCMU_CORE_CCI 0x2020
#define CLK_CON_GAT_GATE_CLKCMU_CORE_G3D 0x2024
#define CLK_CON_GAT_GATE_CLKCMU_PERI_BUS 0x207c
#define CLK_CON_GAT_GATE_CLKCMU_PERI_SPI0 0x2080
#define CLK_CON_GAT_GATE_CLKCMU_PERI_SPI1 0x2084
#define CLK_CON_GAT_GATE_CLKCMU_PERI_UART0 0x2088
#define CLK_CON_GAT_GATE_CLKCMU_PERI_UART2 0x208c
#define CLK_CON_GAT_GATE_CLKCMU_PERI_USI0 0x2090
#define CLK_CON_GAT_GATE_CLKCMU_PERI_USI1 0x2094
#define CLK_CON_GAT_GATE_CLKCMU_PERI_USI2 0x2098
static const unsigned long top_clk_regs[] __initconst = {
PLL_LOCKTIME_PLL_SHARED0,
PLL_LOCKTIME_PLL_SHARED1,
PLL_CON0_PLL_SHARED0,
PLL_CON0_PLL_SHARED1,
CLK_CON_MUX_MUX_CLKCMU_CORE_BUS,
CLK_CON_MUX_MUX_CLKCMU_CORE_CCI,
CLK_CON_MUX_MUX_CLKCMU_CORE_G3D,
CLK_CON_MUX_MUX_CLKCMU_PERI_BUS,
CLK_CON_MUX_MUX_CLKCMU_PERI_SPI0,
CLK_CON_MUX_MUX_CLKCMU_PERI_SPI1,
CLK_CON_MUX_MUX_CLKCMU_PERI_UART0,
CLK_CON_MUX_MUX_CLKCMU_PERI_UART1,
CLK_CON_MUX_MUX_CLKCMU_PERI_UART2,
CLK_CON_MUX_MUX_CLKCMU_PERI_USI0,
CLK_CON_MUX_MUX_CLKCMU_PERI_USI1,
CLK_CON_MUX_MUX_CLKCMU_PERI_USI2,
CLK_CON_DIV_CLKCMU_CORE_BUS,
CLK_CON_DIV_CLKCMU_CORE_CCI,
CLK_CON_DIV_CLKCMU_CORE_G3D,
CLK_CON_DIV_CLKCMU_PERI_BUS,
CLK_CON_DIV_CLKCMU_PERI_SPI0,
CLK_CON_DIV_CLKCMU_PERI_SPI1,
CLK_CON_DIV_CLKCMU_PERI_UART0,
CLK_CON_DIV_CLKCMU_PERI_UART1,
CLK_CON_DIV_CLKCMU_PERI_UART2,
CLK_CON_DIV_CLKCMU_PERI_USI0,
CLK_CON_DIV_CLKCMU_PERI_USI1,
CLK_CON_DIV_CLKCMU_PERI_USI2,
CLK_CON_DIV_PLL_SHARED0_DIV2,
CLK_CON_DIV_PLL_SHARED0_DIV3,
CLK_CON_DIV_PLL_SHARED0_DIV4,
CLK_CON_DIV_PLL_SHARED0_DIV5,
CLK_CON_DIV_PLL_SHARED1_DIV2,
CLK_CON_DIV_PLL_SHARED1_DIV3,
CLK_CON_DIV_PLL_SHARED1_DIV4,
CLK_CON_GAT_GATE_CLKCMUC_PERI_UART1,
CLK_CON_GAT_GATE_CLKCMU_CORE_BUS,
CLK_CON_GAT_GATE_CLKCMU_CORE_CCI,
CLK_CON_GAT_GATE_CLKCMU_CORE_G3D,
CLK_CON_GAT_GATE_CLKCMU_PERI_BUS,
CLK_CON_GAT_GATE_CLKCMU_PERI_SPI0,
CLK_CON_GAT_GATE_CLKCMU_PERI_SPI1,
CLK_CON_GAT_GATE_CLKCMU_PERI_UART0,
CLK_CON_GAT_GATE_CLKCMU_PERI_UART2,
CLK_CON_GAT_GATE_CLKCMU_PERI_USI0,
CLK_CON_GAT_GATE_CLKCMU_PERI_USI1,
CLK_CON_GAT_GATE_CLKCMU_PERI_USI2,
};
static const struct samsung_pll_clock top_pll_clks[] __initconst = {
PLL(pll_1417x, CLK_FOUT_SHARED0_PLL, "fout_shared0_pll", "oscclk",
PLL_LOCKTIME_PLL_SHARED0, PLL_CON0_PLL_SHARED0,
NULL),
PLL(pll_1417x, CLK_FOUT_SHARED1_PLL, "fout_shared1_pll", "oscclk",
PLL_LOCKTIME_PLL_SHARED1, PLL_CON0_PLL_SHARED1,
NULL),
};
/* List of parent clocks for Muxes in CMU_TOP: for CMU_CORE */
PNAME(mout_core_bus_p) = { "dout_shared0_div2", "dout_shared1_div2",
"dout_shared0_div3", "dout_shared0_div3" };
PNAME(mout_core_cci_p) = { "dout_shared0_div2", "dout_shared1_div2",
"dout_shared0_div3", "dout_shared0_div3" };
PNAME(mout_core_g3d_p) = { "dout_shared0_div2", "dout_shared1_div2",
"dout_shared0_div3", "dout_shared0_div3" };
/* List of parent clocks for Muxes in CMU_TOP: for CMU_PERI */
PNAME(mout_peri_bus_p) = { "dout_shared0_div4", "dout_shared1_div4" };
PNAME(mout_peri_spi0_p) = { "oscclk", "dout_shared0_div4" };
PNAME(mout_peri_spi1_p) = { "oscclk", "dout_shared0_div4" };
PNAME(mout_peri_uart0_p) = { "oscclk", "dout_shared0_div4" };
PNAME(mout_peri_uart1_p) = { "oscclk", "dout_shared0_div4" };
PNAME(mout_peri_uart2_p) = { "oscclk", "dout_shared0_div4" };
PNAME(mout_peri_usi0_p) = { "oscclk", "dout_shared0_div4" };
PNAME(mout_peri_usi1_p) = { "oscclk", "dout_shared0_div4" };
PNAME(mout_peri_usi2_p) = { "oscclk", "dout_shared0_div4" };
static const struct samsung_mux_clock top_mux_clks[] __initconst = {
/* CORE */
MUX(CLK_MOUT_CORE_BUS, "mout_core_bus", mout_core_bus_p,
CLK_CON_MUX_MUX_CLKCMU_CORE_BUS, 0, 2),
MUX(CLK_MOUT_CORE_CCI, "mout_core_cci", mout_core_cci_p,
CLK_CON_MUX_MUX_CLKCMU_CORE_CCI, 0, 2),
MUX(CLK_MOUT_CORE_G3D, "mout_core_g3d", mout_core_g3d_p,
CLK_CON_MUX_MUX_CLKCMU_CORE_G3D, 0, 2),
/* PERI */
MUX(CLK_MOUT_PERI_BUS, "mout_peri_bus", mout_peri_bus_p,
CLK_CON_MUX_MUX_CLKCMU_PERI_BUS, 0, 1),
MUX(CLK_MOUT_PERI_SPI0, "mout_peri_spi0", mout_peri_spi0_p,
CLK_CON_MUX_MUX_CLKCMU_PERI_SPI0, 0, 1),
MUX(CLK_MOUT_PERI_SPI1, "mout_peri_spi1", mout_peri_spi1_p,
CLK_CON_MUX_MUX_CLKCMU_PERI_SPI1, 0, 1),
MUX(CLK_MOUT_PERI_UART0, "mout_peri_uart0", mout_peri_uart0_p,
CLK_CON_MUX_MUX_CLKCMU_PERI_UART0, 0, 1),
MUX(CLK_MOUT_PERI_UART1, "mout_peri_uart1", mout_peri_uart1_p,
CLK_CON_MUX_MUX_CLKCMU_PERI_UART1, 0, 1),
MUX(CLK_MOUT_PERI_UART2, "mout_peri_uart2", mout_peri_uart2_p,
CLK_CON_MUX_MUX_CLKCMU_PERI_UART2, 0, 1),
MUX(CLK_MOUT_PERI_USI0, "mout_peri_usi0", mout_peri_usi0_p,
CLK_CON_MUX_MUX_CLKCMU_PERI_USI0, 0, 1),
MUX(CLK_MOUT_PERI_USI1, "mout_peri_usi1", mout_peri_usi1_p,
CLK_CON_MUX_MUX_CLKCMU_PERI_USI1, 0, 1),
MUX(CLK_MOUT_PERI_USI2, "mout_peri_usi2", mout_peri_usi2_p,
CLK_CON_MUX_MUX_CLKCMU_PERI_USI2, 0, 1),
};
static const struct samsung_div_clock top_div_clks[] __initconst = {
/* TOP */
DIV(CLK_DOUT_SHARED0_DIV2, "dout_shared0_div2", "fout_shared0_pll",
CLK_CON_DIV_PLL_SHARED0_DIV2, 0, 1),
DIV(CLK_DOUT_SHARED0_DIV3, "dout_shared0_div3", "fout_shared0_pll",
CLK_CON_DIV_PLL_SHARED0_DIV3, 0, 2),
DIV(CLK_DOUT_SHARED0_DIV4, "dout_shared0_div4", "fout_shared0_pll",
CLK_CON_DIV_PLL_SHARED0_DIV4, 0, 1),
DIV(CLK_DOUT_SHARED0_DIV5, "dout_shared0_div5", "fout_shared0_pll",
CLK_CON_DIV_PLL_SHARED0_DIV5, 0, 3),
DIV(CLK_DOUT_SHARED1_DIV2, "dout_shared1_div2", "fout_shared1_pll",
CLK_CON_DIV_PLL_SHARED1_DIV2, 0, 1),
DIV(CLK_DOUT_SHARED1_DIV3, "dout_shared1_div3", "fout_shared1_pll",
CLK_CON_DIV_PLL_SHARED1_DIV3, 0, 2),
DIV(CLK_DOUT_SHARED1_DIV4, "dout_shared1_div4", "fout_shared1_pll",
CLK_CON_DIV_PLL_SHARED1_DIV4, 0, 1),
/* CORE */
DIV(CLK_DOUT_CORE_BUS, "dout_core_bus", "gout_core_bus",
CLK_CON_DIV_CLKCMU_CORE_BUS, 0, 3),
DIV(CLK_DOUT_CORE_CCI, "dout_core_cci", "gout_core_cci",
CLK_CON_DIV_CLKCMU_CORE_CCI, 0, 3),
DIV(CLK_DOUT_CORE_G3D, "dout_core_g3d", "gout_core_g3d",
CLK_CON_DIV_CLKCMU_CORE_G3D, 0, 3),
/* PERI */
DIV(CLK_DOUT_PERI_BUS, "dout_peri_bus", "gout_peri_bus",
CLK_CON_DIV_CLKCMU_PERI_BUS, 0, 4),
DIV(CLK_DOUT_PERI_SPI0, "dout_peri_spi0", "gout_peri_spi0",
CLK_CON_DIV_CLKCMU_PERI_SPI0, 0, 6),
DIV(CLK_DOUT_PERI_SPI1, "dout_peri_spi1", "gout_peri_spi1",
CLK_CON_DIV_CLKCMU_PERI_SPI1, 0, 6),
DIV(CLK_DOUT_PERI_UART0, "dout_peri_uart0", "gout_peri_uart0",
CLK_CON_DIV_CLKCMU_PERI_UART0, 0, 4),
DIV(CLK_DOUT_PERI_UART1, "dout_peri_uart1", "gout_peri_uart1",
CLK_CON_DIV_CLKCMU_PERI_UART1, 0, 4),
DIV(CLK_DOUT_PERI_UART2, "dout_peri_uart2", "gout_peri_uart2",
CLK_CON_DIV_CLKCMU_PERI_UART2, 0, 4),
DIV(CLK_DOUT_PERI_USI0, "dout_peri_usi0", "gout_peri_usi0",
CLK_CON_DIV_CLKCMU_PERI_USI0, 0, 4),
DIV(CLK_DOUT_PERI_USI1, "dout_peri_usi1", "gout_peri_usi1",
CLK_CON_DIV_CLKCMU_PERI_USI1, 0, 4),
DIV(CLK_DOUT_PERI_USI2, "dout_peri_usi2", "gout_peri_usi2",
CLK_CON_DIV_CLKCMU_PERI_USI2, 0, 4),
};
static const struct samsung_gate_clock top_gate_clks[] __initconst = {
/* CORE */
GATE(CLK_GOUT_CORE_BUS, "gout_core_bus", "mout_core_bus",
CLK_CON_GAT_GATE_CLKCMU_CORE_BUS, 21, 0, 0),
GATE(CLK_GOUT_CORE_CCI, "gout_core_cci", "mout_core_cci",
CLK_CON_GAT_GATE_CLKCMU_CORE_CCI, 21, 0, 0),
GATE(CLK_GOUT_CORE_G3D, "gout_core_g3d", "mout_core_g3d",
CLK_CON_GAT_GATE_CLKCMU_CORE_G3D, 21, 0, 0),
/* PERI */
GATE(CLK_GOUT_PERI_BUS, "gout_peri_bus", "mout_peri_bus",
CLK_CON_GAT_GATE_CLKCMU_PERI_BUS, 21, 0, 0),
GATE(CLK_GOUT_PERI_SPI0, "gout_peri_spi0", "mout_peri_spi0",
CLK_CON_GAT_GATE_CLKCMU_PERI_SPI0, 21, 0, 0),
GATE(CLK_GOUT_PERI_SPI1, "gout_peri_spi1", "mout_peri_spi1",
CLK_CON_GAT_GATE_CLKCMU_PERI_SPI1, 21, 0, 0),
GATE(CLK_GOUT_PERI_UART0, "gout_peri_uart0", "mout_peri_uart0",
CLK_CON_GAT_GATE_CLKCMU_PERI_UART0, 21, 0, 0),
GATE(CLK_GOUT_PERI_UART1, "gout_peri_uart1", "mout_peri_uart1",
CLK_CON_GAT_GATE_CLKCMUC_PERI_UART1, 21, 0, 0),
GATE(CLK_GOUT_PERI_UART2, "gout_peri_uart2", "mout_peri_uart2",
CLK_CON_GAT_GATE_CLKCMU_PERI_UART2, 21, 0, 0),
GATE(CLK_GOUT_PERI_USI0, "gout_peri_usi0", "mout_peri_usi0",
CLK_CON_GAT_GATE_CLKCMU_PERI_USI0, 21, 0, 0),
GATE(CLK_GOUT_PERI_USI1, "gout_peri_usi1", "mout_peri_usi1",
CLK_CON_GAT_GATE_CLKCMU_PERI_USI1, 21, 0, 0),
GATE(CLK_GOUT_PERI_USI2, "gout_peri_usi2", "mout_peri_usi2",
CLK_CON_GAT_GATE_CLKCMU_PERI_USI2, 21, 0, 0),
};
static const struct samsung_cmu_info top_cmu_info __initconst = {
.pll_clks = top_pll_clks,
.nr_pll_clks = ARRAY_SIZE(top_pll_clks),
.mux_clks = top_mux_clks,
.nr_mux_clks = ARRAY_SIZE(top_mux_clks),
.div_clks = top_div_clks,
.nr_div_clks = ARRAY_SIZE(top_div_clks),
.gate_clks = top_gate_clks,
.nr_gate_clks = ARRAY_SIZE(top_gate_clks),
.nr_clk_ids = TOP_NR_CLK,
.clk_regs = top_clk_regs,
.nr_clk_regs = ARRAY_SIZE(top_clk_regs),
};
static void __init exynos7885_cmu_top_init(struct device_node *np)
{
exynos_arm64_register_cmu(NULL, np, &top_cmu_info);
}
/* Register CMU_TOP early, as it's a dependency for other early domains */
CLK_OF_DECLARE(exynos7885_cmu_top, "samsung,exynos7885-cmu-top",
exynos7885_cmu_top_init);
/* ---- CMU_PERI ------------------------------------------------------------ */
/* Register Offset definitions for CMU_PERI (0x10010000) */
#define PLL_CON0_MUX_CLKCMU_PERI_BUS_USER 0x0100
#define PLL_CON0_MUX_CLKCMU_PERI_SPI0_USER 0x0120
#define PLL_CON0_MUX_CLKCMU_PERI_SPI1_USER 0x0140
#define PLL_CON0_MUX_CLKCMU_PERI_UART0_USER 0x0160
#define PLL_CON0_MUX_CLKCMU_PERI_UART1_USER 0x0180
#define PLL_CON0_MUX_CLKCMU_PERI_UART2_USER 0x01a0
#define PLL_CON0_MUX_CLKCMU_PERI_USI0_USER 0x01c0
#define PLL_CON0_MUX_CLKCMU_PERI_USI1_USER 0x01e0
#define PLL_CON0_MUX_CLKCMU_PERI_USI2_USER 0x0200
#define CLK_CON_GAT_GOUT_PERI_GPIO_TOP_PCLK 0x2024
#define CLK_CON_GAT_GOUT_PERI_HSI2C_0_PCLK 0x2028
#define CLK_CON_GAT_GOUT_PERI_HSI2C_1_PCLK 0x202c
#define CLK_CON_GAT_GOUT_PERI_HSI2C_2_PCLK 0x2030
#define CLK_CON_GAT_GOUT_PERI_HSI2C_3_PCLK 0x2034
#define CLK_CON_GAT_GOUT_PERI_I2C_0_PCLK 0x2038
#define CLK_CON_GAT_GOUT_PERI_I2C_1_PCLK 0x203c
#define CLK_CON_GAT_GOUT_PERI_I2C_2_PCLK 0x2040
#define CLK_CON_GAT_GOUT_PERI_I2C_3_PCLK 0x2044
#define CLK_CON_GAT_GOUT_PERI_I2C_4_PCLK 0x2048
#define CLK_CON_GAT_GOUT_PERI_I2C_5_PCLK 0x204c
#define CLK_CON_GAT_GOUT_PERI_I2C_6_PCLK 0x2050
#define CLK_CON_GAT_GOUT_PERI_I2C_7_PCLK 0x2054
#define CLK_CON_GAT_GOUT_PERI_PWM_MOTOR_PCLK 0x2058
#define CLK_CON_GAT_GOUT_PERI_SPI_0_PCLK 0x205c
#define CLK_CON_GAT_GOUT_PERI_SPI_0_EXT_CLK 0x2060
#define CLK_CON_GAT_GOUT_PERI_SPI_1_PCLK 0x2064
#define CLK_CON_GAT_GOUT_PERI_SPI_1_EXT_CLK 0x2068
#define CLK_CON_GAT_GOUT_PERI_UART_0_EXT_UCLK 0x206c
#define CLK_CON_GAT_GOUT_PERI_UART_0_PCLK 0x2070
#define CLK_CON_GAT_GOUT_PERI_UART_1_EXT_UCLK 0x2074
#define CLK_CON_GAT_GOUT_PERI_UART_1_PCLK 0x2078
#define CLK_CON_GAT_GOUT_PERI_UART_2_EXT_UCLK 0x207c
#define CLK_CON_GAT_GOUT_PERI_UART_2_PCLK 0x2080
#define CLK_CON_GAT_GOUT_PERI_USI0_PCLK 0x2084
#define CLK_CON_GAT_GOUT_PERI_USI0_SCLK 0x2088
#define CLK_CON_GAT_GOUT_PERI_USI1_PCLK 0x208c
#define CLK_CON_GAT_GOUT_PERI_USI1_SCLK 0x2090
#define CLK_CON_GAT_GOUT_PERI_USI2_PCLK 0x2094
#define CLK_CON_GAT_GOUT_PERI_USI2_SCLK 0x2098
#define CLK_CON_GAT_GOUT_PERI_MCT_PCLK 0x20a0
#define CLK_CON_GAT_GOUT_PERI_SYSREG_PERI_PCLK 0x20b0
#define CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER0_PCLK 0x20b4
#define CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER1_PCLK 0x20b8
static const unsigned long peri_clk_regs[] __initconst = {
PLL_CON0_MUX_CLKCMU_PERI_BUS_USER,
PLL_CON0_MUX_CLKCMU_PERI_SPI0_USER,
PLL_CON0_MUX_CLKCMU_PERI_SPI1_USER,
PLL_CON0_MUX_CLKCMU_PERI_UART0_USER,
PLL_CON0_MUX_CLKCMU_PERI_UART1_USER,
PLL_CON0_MUX_CLKCMU_PERI_UART2_USER,
PLL_CON0_MUX_CLKCMU_PERI_USI0_USER,
PLL_CON0_MUX_CLKCMU_PERI_USI1_USER,
PLL_CON0_MUX_CLKCMU_PERI_USI2_USER,
CLK_CON_GAT_GOUT_PERI_GPIO_TOP_PCLK,
CLK_CON_GAT_GOUT_PERI_HSI2C_0_PCLK,
CLK_CON_GAT_GOUT_PERI_HSI2C_1_PCLK,
CLK_CON_GAT_GOUT_PERI_HSI2C_2_PCLK,
CLK_CON_GAT_GOUT_PERI_HSI2C_3_PCLK,
CLK_CON_GAT_GOUT_PERI_I2C_0_PCLK,
CLK_CON_GAT_GOUT_PERI_I2C_1_PCLK,
CLK_CON_GAT_GOUT_PERI_I2C_2_PCLK,
CLK_CON_GAT_GOUT_PERI_I2C_3_PCLK,
CLK_CON_GAT_GOUT_PERI_I2C_4_PCLK,
CLK_CON_GAT_GOUT_PERI_I2C_5_PCLK,
CLK_CON_GAT_GOUT_PERI_I2C_6_PCLK,
CLK_CON_GAT_GOUT_PERI_I2C_7_PCLK,
CLK_CON_GAT_GOUT_PERI_PWM_MOTOR_PCLK,
CLK_CON_GAT_GOUT_PERI_SPI_0_PCLK,
CLK_CON_GAT_GOUT_PERI_SPI_0_EXT_CLK,
CLK_CON_GAT_GOUT_PERI_SPI_1_PCLK,
CLK_CON_GAT_GOUT_PERI_SPI_1_EXT_CLK,
CLK_CON_GAT_GOUT_PERI_UART_0_EXT_UCLK,
CLK_CON_GAT_GOUT_PERI_UART_0_PCLK,
CLK_CON_GAT_GOUT_PERI_UART_1_EXT_UCLK,
CLK_CON_GAT_GOUT_PERI_UART_1_PCLK,
CLK_CON_GAT_GOUT_PERI_UART_2_EXT_UCLK,
CLK_CON_GAT_GOUT_PERI_UART_2_PCLK,
CLK_CON_GAT_GOUT_PERI_USI0_PCLK,
CLK_CON_GAT_GOUT_PERI_USI0_SCLK,
CLK_CON_GAT_GOUT_PERI_USI1_PCLK,
CLK_CON_GAT_GOUT_PERI_USI1_SCLK,
CLK_CON_GAT_GOUT_PERI_USI2_PCLK,
CLK_CON_GAT_GOUT_PERI_USI2_SCLK,
CLK_CON_GAT_GOUT_PERI_MCT_PCLK,
CLK_CON_GAT_GOUT_PERI_SYSREG_PERI_PCLK,
CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER0_PCLK,
CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER1_PCLK,
};
/* List of parent clocks for Muxes in CMU_PERI */
PNAME(mout_peri_bus_user_p) = { "oscclk", "dout_peri_bus" };
PNAME(mout_peri_spi0_user_p) = { "oscclk", "dout_peri_spi0" };
PNAME(mout_peri_spi1_user_p) = { "oscclk", "dout_peri_spi1" };
PNAME(mout_peri_uart0_user_p) = { "oscclk", "dout_peri_uart0" };
PNAME(mout_peri_uart1_user_p) = { "oscclk", "dout_peri_uart1" };
PNAME(mout_peri_uart2_user_p) = { "oscclk", "dout_peri_uart2" };
PNAME(mout_peri_usi0_user_p) = { "oscclk", "dout_peri_usi0" };
PNAME(mout_peri_usi1_user_p) = { "oscclk", "dout_peri_usi1" };
PNAME(mout_peri_usi2_user_p) = { "oscclk", "dout_peri_usi2" };
static const struct samsung_mux_clock peri_mux_clks[] __initconst = {
MUX(CLK_MOUT_PERI_BUS_USER, "mout_peri_bus_user", mout_peri_bus_user_p,
PLL_CON0_MUX_CLKCMU_PERI_BUS_USER, 4, 1),
MUX(CLK_MOUT_PERI_SPI0_USER, "mout_peri_spi0_user", mout_peri_spi0_user_p,
PLL_CON0_MUX_CLKCMU_PERI_SPI0_USER, 4, 1),
MUX(CLK_MOUT_PERI_SPI1_USER, "mout_peri_spi1_user", mout_peri_spi1_user_p,
PLL_CON0_MUX_CLKCMU_PERI_SPI1_USER, 4, 1),
MUX(CLK_MOUT_PERI_UART0_USER, "mout_peri_uart0_user",
mout_peri_uart0_user_p, PLL_CON0_MUX_CLKCMU_PERI_UART0_USER, 4, 1),
MUX(CLK_MOUT_PERI_UART1_USER, "mout_peri_uart1_user",
mout_peri_uart1_user_p, PLL_CON0_MUX_CLKCMU_PERI_UART1_USER, 4, 1),
MUX(CLK_MOUT_PERI_UART2_USER, "mout_peri_uart2_user",
mout_peri_uart2_user_p, PLL_CON0_MUX_CLKCMU_PERI_UART2_USER, 4, 1),
MUX(CLK_MOUT_PERI_USI0_USER, "mout_peri_usi0_user",
mout_peri_usi0_user_p, PLL_CON0_MUX_CLKCMU_PERI_USI0_USER, 4, 1),
MUX(CLK_MOUT_PERI_USI1_USER, "mout_peri_usi1_user",
mout_peri_usi1_user_p, PLL_CON0_MUX_CLKCMU_PERI_USI1_USER, 4, 1),
MUX(CLK_MOUT_PERI_USI2_USER, "mout_peri_usi2_user",
mout_peri_usi2_user_p, PLL_CON0_MUX_CLKCMU_PERI_USI2_USER, 4, 1),
};
static const struct samsung_gate_clock peri_gate_clks[] __initconst = {
/* TODO: Should be enabled in GPIO driver (or made CLK_IS_CRITICAL) */
GATE(CLK_GOUT_GPIO_TOP_PCLK, "gout_gpio_top_pclk",
"mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_GPIO_TOP_PCLK, 21, CLK_IGNORE_UNUSED, 0),
GATE(CLK_GOUT_HSI2C0_PCLK, "gout_hsi2c0_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_HSI2C_0_PCLK, 21, 0, 0),
GATE(CLK_GOUT_HSI2C1_PCLK, "gout_hsi2c1_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_HSI2C_1_PCLK, 21, 0, 0),
GATE(CLK_GOUT_HSI2C2_PCLK, "gout_hsi2c2_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_HSI2C_2_PCLK, 21, 0, 0),
GATE(CLK_GOUT_HSI2C3_PCLK, "gout_hsi2c3_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_HSI2C_3_PCLK, 21, 0, 0),
GATE(CLK_GOUT_I2C0_PCLK, "gout_i2c0_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_I2C_0_PCLK, 21, 0, 0),
GATE(CLK_GOUT_I2C1_PCLK, "gout_i2c1_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_I2C_1_PCLK, 21, 0, 0),
GATE(CLK_GOUT_I2C2_PCLK, "gout_i2c2_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_I2C_2_PCLK, 21, 0, 0),
GATE(CLK_GOUT_I2C3_PCLK, "gout_i2c3_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_I2C_3_PCLK, 21, 0, 0),
GATE(CLK_GOUT_I2C4_PCLK, "gout_i2c4_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_I2C_4_PCLK, 21, 0, 0),
GATE(CLK_GOUT_I2C5_PCLK, "gout_i2c5_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_I2C_5_PCLK, 21, 0, 0),
GATE(CLK_GOUT_I2C6_PCLK, "gout_i2c6_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_I2C_6_PCLK, 21, 0, 0),
GATE(CLK_GOUT_I2C7_PCLK, "gout_i2c7_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_I2C_7_PCLK, 21, 0, 0),
GATE(CLK_GOUT_PWM_MOTOR_PCLK, "gout_pwm_motor_pclk",
"mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_PWM_MOTOR_PCLK, 21, 0, 0),
GATE(CLK_GOUT_SPI0_PCLK, "gout_spi0_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_SPI_0_PCLK, 21, 0, 0),
GATE(CLK_GOUT_SPI0_EXT_CLK, "gout_spi0_ipclk", "mout_peri_spi0_user",
CLK_CON_GAT_GOUT_PERI_SPI_0_EXT_CLK, 21, 0, 0),
GATE(CLK_GOUT_SPI1_PCLK, "gout_spi1_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_SPI_1_PCLK, 21, 0, 0),
GATE(CLK_GOUT_SPI1_EXT_CLK, "gout_spi1_ipclk", "mout_peri_spi1_user",
CLK_CON_GAT_GOUT_PERI_SPI_1_EXT_CLK, 21, 0, 0),
GATE(CLK_GOUT_UART0_EXT_UCLK, "gout_uart0_ext_uclk", "mout_peri_uart0_user",
CLK_CON_GAT_GOUT_PERI_UART_0_EXT_UCLK, 21, 0, 0),
GATE(CLK_GOUT_UART0_PCLK, "gout_uart0_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_UART_0_PCLK, 21, 0, 0),
GATE(CLK_GOUT_UART1_EXT_UCLK, "gout_uart1_ext_uclk", "mout_peri_uart1_user",
CLK_CON_GAT_GOUT_PERI_UART_1_EXT_UCLK, 21, 0, 0),
GATE(CLK_GOUT_UART1_PCLK, "gout_uart1_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_UART_1_PCLK, 21, 0, 0),
GATE(CLK_GOUT_UART2_EXT_UCLK, "gout_uart2_ext_uclk", "mout_peri_uart2_user",
CLK_CON_GAT_GOUT_PERI_UART_2_EXT_UCLK, 21, 0, 0),
GATE(CLK_GOUT_UART2_PCLK, "gout_uart2_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_UART_2_PCLK, 21, 0, 0),
GATE(CLK_GOUT_USI0_PCLK, "gout_usi0_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_USI0_PCLK, 21, 0, 0),
GATE(CLK_GOUT_USI0_SCLK, "gout_usi0_sclk", "mout_peri_usi0_user",
CLK_CON_GAT_GOUT_PERI_USI0_SCLK, 21, 0, 0),
GATE(CLK_GOUT_USI1_PCLK, "gout_usi1_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_USI1_PCLK, 21, 0, 0),
GATE(CLK_GOUT_USI1_SCLK, "gout_usi1_sclk", "mout_peri_usi1_user",
CLK_CON_GAT_GOUT_PERI_USI1_SCLK, 21, 0, 0),
GATE(CLK_GOUT_USI2_PCLK, "gout_usi2_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_USI2_PCLK, 21, 0, 0),
GATE(CLK_GOUT_USI2_SCLK, "gout_usi2_sclk", "mout_peri_usi2_user",
CLK_CON_GAT_GOUT_PERI_USI2_SCLK, 21, 0, 0),
GATE(CLK_GOUT_MCT_PCLK, "gout_mct_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_MCT_PCLK, 21, 0, 0),
GATE(CLK_GOUT_SYSREG_PERI_PCLK, "gout_sysreg_peri_pclk",
"mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_SYSREG_PERI_PCLK, 21, 0, 0),
GATE(CLK_GOUT_WDT0_PCLK, "gout_wdt0_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER0_PCLK, 21, 0, 0),
GATE(CLK_GOUT_WDT1_PCLK, "gout_wdt1_pclk", "mout_peri_bus_user",
CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER1_PCLK, 21, 0, 0),
};
static const struct samsung_cmu_info peri_cmu_info __initconst = {
.mux_clks = peri_mux_clks,
.nr_mux_clks = ARRAY_SIZE(peri_mux_clks),
.gate_clks = peri_gate_clks,
.nr_gate_clks = ARRAY_SIZE(peri_gate_clks),
.nr_clk_ids = PERI_NR_CLK,
.clk_regs = peri_clk_regs,
.nr_clk_regs = ARRAY_SIZE(peri_clk_regs),
.clk_name = "dout_peri_bus",
};
static void __init exynos7885_cmu_peri_init(struct device_node *np)
{
exynos_arm64_register_cmu(NULL, np, &peri_cmu_info);
}
/* Register CMU_PERI early, as it's needed for MCT timer */
CLK_OF_DECLARE(exynos7885_cmu_peri, "samsung,exynos7885-cmu-peri",
exynos7885_cmu_peri_init);
/* ---- CMU_CORE ------------------------------------------------------------ */
/* Register Offset definitions for CMU_CORE (0x12000000) */
#define PLL_CON0_MUX_CLKCMU_CORE_BUS_USER 0x0100
#define PLL_CON0_MUX_CLKCMU_CORE_CCI_USER 0x0120
#define PLL_CON0_MUX_CLKCMU_CORE_G3D_USER 0x0140
#define CLK_CON_MUX_MUX_CLK_CORE_GIC 0x1000
#define CLK_CON_DIV_DIV_CLK_CORE_BUSP 0x1800
#define CLK_CON_GAT_GOUT_CORE_CCI_550_ACLK 0x2054
#define CLK_CON_GAT_GOUT_CORE_GIC400_CLK 0x2058
static const unsigned long core_clk_regs[] __initconst = {
PLL_CON0_MUX_CLKCMU_CORE_BUS_USER,
PLL_CON0_MUX_CLKCMU_CORE_CCI_USER,
PLL_CON0_MUX_CLKCMU_CORE_G3D_USER,
CLK_CON_MUX_MUX_CLK_CORE_GIC,
CLK_CON_DIV_DIV_CLK_CORE_BUSP,
CLK_CON_GAT_GOUT_CORE_CCI_550_ACLK,
CLK_CON_GAT_GOUT_CORE_GIC400_CLK,
};
/* List of parent clocks for Muxes in CMU_CORE */
PNAME(mout_core_bus_user_p) = { "oscclk", "dout_core_bus" };
PNAME(mout_core_cci_user_p) = { "oscclk", "dout_core_cci" };
PNAME(mout_core_g3d_user_p) = { "oscclk", "dout_core_g3d" };
PNAME(mout_core_gic_p) = { "dout_core_busp", "oscclk" };
static const struct samsung_mux_clock core_mux_clks[] __initconst = {
MUX(CLK_MOUT_CORE_BUS_USER, "mout_core_bus_user", mout_core_bus_user_p,
PLL_CON0_MUX_CLKCMU_CORE_BUS_USER, 4, 1),
MUX(CLK_MOUT_CORE_CCI_USER, "mout_core_cci_user", mout_core_cci_user_p,
PLL_CON0_MUX_CLKCMU_CORE_CCI_USER, 4, 1),
MUX(CLK_MOUT_CORE_G3D_USER, "mout_core_g3d_user", mout_core_g3d_user_p,
PLL_CON0_MUX_CLKCMU_CORE_G3D_USER, 4, 1),
MUX(CLK_MOUT_CORE_GIC, "mout_core_gic", mout_core_gic_p,
CLK_CON_MUX_MUX_CLK_CORE_GIC, 0, 1),
};
static const struct samsung_div_clock core_div_clks[] __initconst = {
DIV(CLK_DOUT_CORE_BUSP, "dout_core_busp", "mout_core_bus_user",
CLK_CON_DIV_DIV_CLK_CORE_BUSP, 0, 2),
};
static const struct samsung_gate_clock core_gate_clks[] __initconst = {
/* CCI (interconnect) clock must be always running */
GATE(CLK_GOUT_CCI_ACLK, "gout_cci_aclk", "mout_core_cci_user",
CLK_CON_GAT_GOUT_CORE_CCI_550_ACLK, 21, CLK_IS_CRITICAL, 0),
/* GIC (interrupt controller) clock must be always running */
GATE(CLK_GOUT_GIC400_CLK, "gout_gic400_clk", "mout_core_gic",
CLK_CON_GAT_GOUT_CORE_GIC400_CLK, 21, CLK_IS_CRITICAL, 0),
};
static const struct samsung_cmu_info core_cmu_info __initconst = {
.mux_clks = core_mux_clks,
.nr_mux_clks = ARRAY_SIZE(core_mux_clks),
.div_clks = core_div_clks,
.nr_div_clks = ARRAY_SIZE(core_div_clks),
.gate_clks = core_gate_clks,
.nr_gate_clks = ARRAY_SIZE(core_gate_clks),
.nr_clk_ids = CORE_NR_CLK,
.clk_regs = core_clk_regs,
.nr_clk_regs = ARRAY_SIZE(core_clk_regs),
.clk_name = "dout_core_bus",
};
/* ---- platform_driver ----------------------------------------------------- */
static int __init exynos7885_cmu_probe(struct platform_device *pdev)
{
const struct samsung_cmu_info *info;
struct device *dev = &pdev->dev;
info = of_device_get_match_data(dev);
exynos_arm64_register_cmu(dev, dev->of_node, info);
return 0;
}
static const struct of_device_id exynos7885_cmu_of_match[] = {
{
.compatible = "samsung,exynos7885-cmu-core",
.data = &core_cmu_info,
}, {
},
};
static struct platform_driver exynos7885_cmu_driver __refdata = {
.driver = {
.name = "exynos7885-cmu",
.of_match_table = exynos7885_cmu_of_match,
.suppress_bind_attrs = true,
},
.probe = exynos7885_cmu_probe,
};
static int __init exynos7885_cmu_init(void)
{
return platform_driver_register(&exynos7885_cmu_driver);
}
core_initcall(exynos7885_cmu_init);
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