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linux/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c

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clk: sunxi-ng: Add driver for A83T CCU The A83T clock control unit is a hybrid of some new style clock designs from the A80, and old style layout from the other Allwinner SoCs. Like the A80, the SoC does not have a low speed 32.768 kHz oscillator. Unlike the A80, there is no clock input either. The only low speed clock available is the internal oscillator which runs at around 16 MHz, divided by 512, yielding a low speed clock around 31.250 kHz. Also, the MMC2 module clock supports switching to a "new timing" mode. This mode divides the clock output by half, and disables the CCU based clock delays. The MMC controller must be configure to the same mode, and then use its internal clock delays. This driver does not support runtime switching of the timing modes. Instead, the new timing mode is enforced at probe time. Consumers can check which mode is active by trying to get the current phase delay of the MMC2 phase clocks, which will return -ENOTSUPP if the new timing mode is active. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-19 15:06:09 +08:00
/*
* Copyright (c) 2017 Chen-Yu Tsai. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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/clk-provider.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include "ccu_common.h"
#include "ccu_reset.h"
#include "ccu_div.h"
#include "ccu_gate.h"
#include "ccu_mp.h"
#include "ccu_mux.h"
#include "ccu_nkmp.h"
#include "ccu_nm.h"
#include "ccu_phase.h"
#include "ccu-sun8i-a83t.h"
clk: sunxi-ng: a83t: Fix PLL lock status register offset The offset for the PLL lock status register was incorrectly set to 0x208, which actually points to an unused register. The correct register offset is 0x20c. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-22 14:25:47 +08:00
#define CCU_SUN8I_A83T_LOCK_REG 0x20c
clk: sunxi-ng: Add driver for A83T CCU The A83T clock control unit is a hybrid of some new style clock designs from the A80, and old style layout from the other Allwinner SoCs. Like the A80, the SoC does not have a low speed 32.768 kHz oscillator. Unlike the A80, there is no clock input either. The only low speed clock available is the internal oscillator which runs at around 16 MHz, divided by 512, yielding a low speed clock around 31.250 kHz. Also, the MMC2 module clock supports switching to a "new timing" mode. This mode divides the clock output by half, and disables the CCU based clock delays. The MMC controller must be configure to the same mode, and then use its internal clock delays. This driver does not support runtime switching of the timing modes. Instead, the new timing mode is enforced at probe time. Consumers can check which mode is active by trying to get the current phase delay of the MMC2 phase clocks, which will return -ENOTSUPP if the new timing mode is active. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-19 15:06:09 +08:00
/*
* The CPU PLLs are actually NP clocks, with P being /1 or /4. However
* P should only be used for output frequencies lower than 228 MHz.
* Neither mainline Linux, U-boot, nor the vendor BSPs use these.
*
* For now we can just model it as a multiplier clock, and force P to /1.
*/
#define SUN8I_A83T_PLL_C0CPUX_REG 0x000
#define SUN8I_A83T_PLL_C1CPUX_REG 0x004
static struct ccu_mult pll_c0cpux_clk = {
.enable = BIT(31),
.lock = BIT(0),
.mult = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
.common = {
.reg = SUN8I_A83T_PLL_C0CPUX_REG,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-c0cpux", "osc24M",
&ccu_mult_ops,
CLK_SET_RATE_UNGATE),
},
};
static struct ccu_mult pll_c1cpux_clk = {
.enable = BIT(31),
.lock = BIT(1),
.mult = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
.common = {
.reg = SUN8I_A83T_PLL_C1CPUX_REG,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-c1cpux", "osc24M",
&ccu_mult_ops,
CLK_SET_RATE_UNGATE),
},
};
/*
* The Audio PLL has d1, d2 dividers in addition to the usual N, M
* factors. Since we only need 2 frequencies from this PLL: 22.5792 MHz
* and 24.576 MHz, ignore them for now. Enforce the default for them,
* which is d1 = 0, d2 = 1.
*/
#define SUN8I_A83T_PLL_AUDIO_REG 0x008
static struct ccu_nm pll_audio_clk = {
.enable = BIT(31),
.lock = BIT(2),
.n = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
clk: sunxi-ng: a83t: Fix audio PLL divider offset The divider of the audio PLL has an offset of 1. Fix this in the driver. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-22 14:25:48 +08:00
.m = _SUNXI_CCU_DIV(0, 6),
clk: sunxi-ng: Add driver for A83T CCU The A83T clock control unit is a hybrid of some new style clock designs from the A80, and old style layout from the other Allwinner SoCs. Like the A80, the SoC does not have a low speed 32.768 kHz oscillator. Unlike the A80, there is no clock input either. The only low speed clock available is the internal oscillator which runs at around 16 MHz, divided by 512, yielding a low speed clock around 31.250 kHz. Also, the MMC2 module clock supports switching to a "new timing" mode. This mode divides the clock output by half, and disables the CCU based clock delays. The MMC controller must be configure to the same mode, and then use its internal clock delays. This driver does not support runtime switching of the timing modes. Instead, the new timing mode is enforced at probe time. Consumers can check which mode is active by trying to get the current phase delay of the MMC2 phase clocks, which will return -ENOTSUPP if the new timing mode is active. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-19 15:06:09 +08:00
.common = {
.reg = SUN8I_A83T_PLL_AUDIO_REG,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-audio", "osc24M",
&ccu_nm_ops, CLK_SET_RATE_UNGATE),
},
};
/* Some PLLs are input * N / div1 / P. Model them as NKMP with no K */
static struct ccu_nkmp pll_video0_clk = {
.enable = BIT(31),
.lock = BIT(3),
.n = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
.m = _SUNXI_CCU_DIV(16, 1), /* input divider */
.p = _SUNXI_CCU_DIV(0, 2), /* output divider */
.common = {
.reg = 0x010,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-video0", "osc24M",
&ccu_nkmp_ops,
CLK_SET_RATE_UNGATE),
},
};
static struct ccu_nkmp pll_ve_clk = {
.enable = BIT(31),
.lock = BIT(4),
.n = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
.m = _SUNXI_CCU_DIV(16, 1), /* input divider */
.p = _SUNXI_CCU_DIV(18, 1), /* output divider */
.common = {
.reg = 0x018,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-ve", "osc24M",
&ccu_nkmp_ops,
CLK_SET_RATE_UNGATE),
},
};
static struct ccu_nkmp pll_ddr_clk = {
.enable = BIT(31),
.lock = BIT(5),
.n = _SUNXI_CCU_MULT_MIN(8, 8, 12),
.m = _SUNXI_CCU_DIV(16, 1), /* input divider */
.p = _SUNXI_CCU_DIV(18, 1), /* output divider */
.common = {
.reg = 0x020,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-ddr", "osc24M",
&ccu_nkmp_ops,
CLK_SET_RATE_UNGATE),
},
};
static struct ccu_nkmp pll_periph_clk = {
.enable = BIT(31),
.lock = BIT(6),
.n = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
.m = _SUNXI_CCU_DIV(16, 1), /* input divider */
.p = _SUNXI_CCU_DIV(18, 1), /* output divider */
.common = {
.reg = 0x028,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-periph", "osc24M",
&ccu_nkmp_ops,
CLK_SET_RATE_UNGATE),
},
};
static struct ccu_nkmp pll_gpu_clk = {
.enable = BIT(31),
.lock = BIT(7),
.n = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
.m = _SUNXI_CCU_DIV(16, 1), /* input divider */
.p = _SUNXI_CCU_DIV(18, 1), /* output divider */
.common = {
.reg = 0x038,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-gpu", "osc24M",
&ccu_nkmp_ops,
CLK_SET_RATE_UNGATE),
},
};
static struct ccu_nkmp pll_hsic_clk = {
.enable = BIT(31),
.lock = BIT(8),
.n = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
.m = _SUNXI_CCU_DIV(16, 1), /* input divider */
.p = _SUNXI_CCU_DIV(18, 1), /* output divider */
.common = {
.reg = 0x044,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-hsic", "osc24M",
&ccu_nkmp_ops,
CLK_SET_RATE_UNGATE),
},
};
static struct ccu_nkmp pll_de_clk = {
.enable = BIT(31),
.lock = BIT(9),
.n = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
.m = _SUNXI_CCU_DIV(16, 1), /* input divider */
.p = _SUNXI_CCU_DIV(18, 1), /* output divider */
.common = {
.reg = 0x048,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-de", "osc24M",
&ccu_nkmp_ops,
CLK_SET_RATE_UNGATE),
},
};
static struct ccu_nkmp pll_video1_clk = {
.enable = BIT(31),
.lock = BIT(10),
.n = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
.m = _SUNXI_CCU_DIV(16, 1), /* input divider */
.p = _SUNXI_CCU_DIV(0, 2), /* external divider p */
.common = {
.reg = 0x04c,
.lock_reg = CCU_SUN8I_A83T_LOCK_REG,
.features = CCU_FEATURE_LOCK_REG,
.hw.init = CLK_HW_INIT("pll-video1", "osc24M",
&ccu_nkmp_ops,
CLK_SET_RATE_UNGATE),
},
};
static const char * const c0cpux_parents[] = { "osc24M", "pll-c0cpux" };
static SUNXI_CCU_MUX(c0cpux_clk, "c0cpux", c0cpux_parents,
0x50, 12, 1, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
static const char * const c1cpux_parents[] = { "osc24M", "pll-c1cpux" };
static SUNXI_CCU_MUX(c1cpux_clk, "c1cpux", c1cpux_parents,
0x50, 28, 1, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
static SUNXI_CCU_M(axi0_clk, "axi0", "c0cpux", 0x050, 0, 2, 0);
static SUNXI_CCU_M(axi1_clk, "axi1", "c1cpux", 0x050, 16, 2, 0);
static const char * const ahb1_parents[] = { "osc16M-d512", "osc24M",
"pll-periph",
"pll-periph" };
static const struct ccu_mux_var_prediv ahb1_predivs[] = {
{ .index = 2, .shift = 6, .width = 2 },
{ .index = 3, .shift = 6, .width = 2 },
};
static struct ccu_div ahb1_clk = {
.div = _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
.mux = {
.shift = 12,
.width = 2,
.var_predivs = ahb1_predivs,
.n_var_predivs = ARRAY_SIZE(ahb1_predivs),
},
.common = {
.reg = 0x054,
.hw.init = CLK_HW_INIT_PARENTS("ahb1",
ahb1_parents,
&ccu_div_ops,
0),
},
};
static SUNXI_CCU_M(apb1_clk, "apb1", "ahb1", 0x054, 8, 2, 0);
static const char * const apb2_parents[] = { "osc16M-d512", "osc24M",
"pll-periph", "pll-periph" };
static SUNXI_CCU_MP_WITH_MUX(apb2_clk, "apb2", apb2_parents, 0x058,
0, 5, /* M */
16, 2, /* P */
24, 2, /* mux */
0);
static const char * const ahb2_parents[] = { "ahb1", "pll-periph" };
static const struct ccu_mux_fixed_prediv ahb2_prediv = {
.index = 1, .div = 2
};
static struct ccu_mux ahb2_clk = {
.mux = {
.shift = 0,
.width = 2,
.fixed_predivs = &ahb2_prediv,
.n_predivs = 1,
},
.common = {
.reg = 0x05c,
.hw.init = CLK_HW_INIT_PARENTS("ahb2",
ahb2_parents,
&ccu_mux_ops,
0),
},
};
static SUNXI_CCU_GATE(bus_mipi_dsi_clk, "bus-mipi-dsi", "ahb1",
0x060, BIT(1), 0);
static SUNXI_CCU_GATE(bus_ss_clk, "bus-ss", "ahb1",
0x060, BIT(5), 0);
static SUNXI_CCU_GATE(bus_dma_clk, "bus-dma", "ahb1",
0x060, BIT(6), 0);
static SUNXI_CCU_GATE(bus_mmc0_clk, "bus-mmc0", "ahb1",
0x060, BIT(8), 0);
static SUNXI_CCU_GATE(bus_mmc1_clk, "bus-mmc1", "ahb1",
0x060, BIT(9), 0);
static SUNXI_CCU_GATE(bus_mmc2_clk, "bus-mmc2", "ahb1",
0x060, BIT(10), 0);
static SUNXI_CCU_GATE(bus_nand_clk, "bus-nand", "ahb1",
0x060, BIT(13), 0);
static SUNXI_CCU_GATE(bus_dram_clk, "bus-dram", "ahb1",
0x060, BIT(14), 0);
static SUNXI_CCU_GATE(bus_emac_clk, "bus-emac", "ahb2",
0x060, BIT(17), 0);
static SUNXI_CCU_GATE(bus_hstimer_clk, "bus-hstimer", "ahb1",
0x060, BIT(19), 0);
static SUNXI_CCU_GATE(bus_spi0_clk, "bus-spi0", "ahb1",
0x060, BIT(20), 0);
static SUNXI_CCU_GATE(bus_spi1_clk, "bus-spi1", "ahb1",
0x060, BIT(21), 0);
static SUNXI_CCU_GATE(bus_otg_clk, "bus-otg", "ahb1",
0x060, BIT(24), 0);
static SUNXI_CCU_GATE(bus_ehci0_clk, "bus-ehci0", "ahb2",
0x060, BIT(26), 0);
static SUNXI_CCU_GATE(bus_ehci1_clk, "bus-ehci1", "ahb2",
0x060, BIT(27), 0);
static SUNXI_CCU_GATE(bus_ohci0_clk, "bus-ohci0", "ahb2",
0x060, BIT(29), 0);
static SUNXI_CCU_GATE(bus_ve_clk, "bus-ve", "ahb1",
0x064, BIT(0), 0);
static SUNXI_CCU_GATE(bus_tcon0_clk, "bus-tcon0", "ahb1",
0x064, BIT(4), 0);
static SUNXI_CCU_GATE(bus_tcon1_clk, "bus-tcon1", "ahb1",
0x064, BIT(5), 0);
static SUNXI_CCU_GATE(bus_csi_clk, "bus-csi", "ahb1",
0x064, BIT(8), 0);
static SUNXI_CCU_GATE(bus_hdmi_clk, "bus-hdmi", "ahb1",
0x064, BIT(11), 0);
static SUNXI_CCU_GATE(bus_de_clk, "bus-de", "ahb1",
0x064, BIT(12), 0);
static SUNXI_CCU_GATE(bus_gpu_clk, "bus-gpu", "ahb1",
0x064, BIT(20), 0);
static SUNXI_CCU_GATE(bus_msgbox_clk, "bus-msgbox", "ahb1",
0x064, BIT(21), 0);
static SUNXI_CCU_GATE(bus_spinlock_clk, "bus-spinlock", "ahb1",
0x064, BIT(22), 0);
static SUNXI_CCU_GATE(bus_spdif_clk, "bus-spdif", "apb1",
0x068, BIT(1), 0);
static SUNXI_CCU_GATE(bus_pio_clk, "bus-pio", "apb1",
0x068, BIT(5), 0);
static SUNXI_CCU_GATE(bus_i2s0_clk, "bus-i2s0", "apb1",
0x068, BIT(12), 0);
static SUNXI_CCU_GATE(bus_i2s1_clk, "bus-i2s1", "apb1",
0x068, BIT(13), 0);
static SUNXI_CCU_GATE(bus_i2s2_clk, "bus-i2s2", "apb1",
0x068, BIT(14), 0);
static SUNXI_CCU_GATE(bus_tdm_clk, "bus-tdm", "apb1",
0x068, BIT(15), 0);
static SUNXI_CCU_GATE(bus_i2c0_clk, "bus-i2c0", "apb2",
0x06c, BIT(0), 0);
static SUNXI_CCU_GATE(bus_i2c1_clk, "bus-i2c1", "apb2",
0x06c, BIT(0), 0);
static SUNXI_CCU_GATE(bus_i2c2_clk, "bus-i2c2", "apb2",
0x06c, BIT(0), 0);
static SUNXI_CCU_GATE(bus_uart0_clk, "bus-uart0", "apb2",
0x06c, BIT(16), 0);
static SUNXI_CCU_GATE(bus_uart1_clk, "bus-uart1", "apb2",
0x06c, BIT(17), 0);
static SUNXI_CCU_GATE(bus_uart2_clk, "bus-uart2", "apb2",
0x06c, BIT(18), 0);
static SUNXI_CCU_GATE(bus_uart3_clk, "bus-uart3", "apb2",
0x06c, BIT(19), 0);
static SUNXI_CCU_GATE(bus_uart4_clk, "bus-uart4", "apb2",
0x06c, BIT(20), 0);
static const char * const cci400_parents[] = { "osc24M", "pll-periph",
"pll-hsic" };
static struct ccu_div cci400_clk = {
.div = _SUNXI_CCU_DIV_FLAGS(0, 2, 0),
.mux = _SUNXI_CCU_MUX(24, 2),
.common = {
.reg = 0x078,
.hw.init = CLK_HW_INIT_PARENTS("cci400",
cci400_parents,
&ccu_div_ops,
CLK_IS_CRITICAL),
},
};
static const char * const mod0_default_parents[] = { "osc24M", "pll-periph" };
static SUNXI_CCU_MP_WITH_MUX_GATE(nand_clk, "nand", mod0_default_parents,
0x080,
0, 4, /* M */
16, 2, /* P */
24, 2, /* mux */
BIT(31), /* gate */
0);
static SUNXI_CCU_MP_WITH_MUX_GATE(mmc0_clk, "mmc0", mod0_default_parents,
0x088,
0, 4, /* M */
16, 2, /* P */
24, 2, /* mux */
BIT(31), /* gate */
0);
static SUNXI_CCU_PHASE(mmc0_sample_clk, "mmc0-sample", "mmc0",
0x088, 20, 3, 0);
static SUNXI_CCU_PHASE(mmc0_output_clk, "mmc0-output", "mmc0",
0x088, 8, 3, 0);
static SUNXI_CCU_MP_WITH_MUX_GATE(mmc1_clk, "mmc1", mod0_default_parents,
0x08c,
0, 4, /* M */
16, 2, /* P */
24, 2, /* mux */
BIT(31), /* gate */
0);
static SUNXI_CCU_PHASE(mmc1_sample_clk, "mmc1-sample", "mmc1",
0x08c, 20, 3, 0);
static SUNXI_CCU_PHASE(mmc1_output_clk, "mmc1-output", "mmc1",
0x08c, 8, 3, 0);
clk: sunxi-ng: a83t: Support new timing mode for mmc2 clock The MMC2 clock supports a new timing mode. When the new mode is active, the output clock rate is halved. This patch sets the feature flag for the new timing mode, and adds a pre-divider based on the mode bit. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-07-24 21:58:58 +08:00
static SUNXI_CCU_MP_MMC_WITH_MUX_GATE(mmc2_clk, "mmc2", mod0_default_parents,
0x090, 0);
clk: sunxi-ng: Add driver for A83T CCU The A83T clock control unit is a hybrid of some new style clock designs from the A80, and old style layout from the other Allwinner SoCs. Like the A80, the SoC does not have a low speed 32.768 kHz oscillator. Unlike the A80, there is no clock input either. The only low speed clock available is the internal oscillator which runs at around 16 MHz, divided by 512, yielding a low speed clock around 31.250 kHz. Also, the MMC2 module clock supports switching to a "new timing" mode. This mode divides the clock output by half, and disables the CCU based clock delays. The MMC controller must be configure to the same mode, and then use its internal clock delays. This driver does not support runtime switching of the timing modes. Instead, the new timing mode is enforced at probe time. Consumers can check which mode is active by trying to get the current phase delay of the MMC2 phase clocks, which will return -ENOTSUPP if the new timing mode is active. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-19 15:06:09 +08:00
static SUNXI_CCU_PHASE(mmc2_sample_clk, "mmc2-sample", "mmc2",
0x090, 20, 3, 0);
static SUNXI_CCU_PHASE(mmc2_output_clk, "mmc2-output", "mmc2",
0x090, 8, 3, 0);
static SUNXI_CCU_MP_WITH_MUX_GATE(ss_clk, "ss", mod0_default_parents,
0x09c,
0, 4, /* M */
16, 2, /* P */
24, 2, /* mux */
BIT(31), /* gate */
0);
static SUNXI_CCU_MP_WITH_MUX_GATE(spi0_clk, "spi0", mod0_default_parents,
0x0a0,
0, 4, /* M */
16, 2, /* P */
24, 4, /* mux */
BIT(31), /* gate */
0);
static SUNXI_CCU_MP_WITH_MUX_GATE(spi1_clk, "spi1", mod0_default_parents,
0x0a4,
0, 4, /* M */
16, 2, /* P */
24, 4, /* mux */
BIT(31), /* gate */
0);
static SUNXI_CCU_M_WITH_GATE(i2s0_clk, "i2s0", "pll-audio",
0x0b0, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
static SUNXI_CCU_M_WITH_GATE(i2s1_clk, "i2s1", "pll-audio",
0x0b4, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
static SUNXI_CCU_M_WITH_GATE(i2s2_clk, "i2s2", "pll-audio",
0x0b8, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
static SUNXI_CCU_M_WITH_GATE(tdm_clk, "tdm", "pll-audio",
0x0bc, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
static SUNXI_CCU_M_WITH_GATE(spdif_clk, "spdif", "pll-audio",
0x0c0, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
static SUNXI_CCU_GATE(usb_phy0_clk, "usb-phy0", "osc24M",
0x0cc, BIT(8), 0);
static SUNXI_CCU_GATE(usb_phy1_clk, "usb-phy1", "osc24M",
0x0cc, BIT(9), 0);
static SUNXI_CCU_GATE(usb_hsic_clk, "usb-hsic", "pll-hsic",
0x0cc, BIT(10), 0);
static struct ccu_gate usb_hsic_12m_clk = {
.enable = BIT(11),
.common = {
.reg = 0x0cc,
.prediv = 2,
.features = CCU_FEATURE_ALL_PREDIV,
.hw.init = CLK_HW_INIT("usb-hsic-12m", "osc24M",
&ccu_gate_ops, 0),
}
};
static SUNXI_CCU_GATE(usb_ohci0_clk, "usb-ohci0", "osc24M",
0x0cc, BIT(16), 0);
/* TODO divider has minimum of 2 */
static SUNXI_CCU_M(dram_clk, "dram", "pll-ddr", 0x0f4, 0, 4, CLK_IS_CRITICAL);
static SUNXI_CCU_GATE(dram_ve_clk, "dram-ve", "dram",
0x100, BIT(0), 0);
static SUNXI_CCU_GATE(dram_csi_clk, "dram-csi", "dram",
0x100, BIT(1), 0);
static const char * const tcon0_parents[] = { "pll-video0" };
static SUNXI_CCU_MUX_WITH_GATE(tcon0_clk, "tcon0", tcon0_parents,
0x118, 24, 3, BIT(31), CLK_SET_RATE_PARENT);
static const char * const tcon1_parents[] = { "pll-video1" };
static SUNXI_CCU_MUX_WITH_GATE(tcon1_clk, "tcon1", tcon1_parents,
0x11c, 24, 3, BIT(31), CLK_SET_RATE_PARENT);
static SUNXI_CCU_GATE(csi_misc_clk, "csi-misc", "osc24M", 0x130, BIT(16), 0);
static SUNXI_CCU_GATE(mipi_csi_clk, "mipi-csi", "osc24M", 0x130, BIT(31), 0);
static const char * const csi_mclk_parents[] = { "pll-de", "osc24M" };
static const u8 csi_mclk_table[] = { 3, 5 };
static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(csi_mclk_clk, "csi-mclk",
csi_mclk_parents, csi_mclk_table,
0x134,
0, 5, /* M */
10, 3, /* mux */
BIT(15), /* gate */
0);
static const char * const csi_sclk_parents[] = { "pll-periph", "pll-ve" };
static const u8 csi_sclk_table[] = { 0, 5 };
static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(csi_sclk_clk, "csi-sclk",
csi_sclk_parents, csi_sclk_table,
0x134,
16, 4, /* M */
24, 3, /* mux */
BIT(31), /* gate */
0);
static SUNXI_CCU_M_WITH_GATE(ve_clk, "ve", "pll-ve", 0x13c,
16, 3, BIT(31), CLK_SET_RATE_PARENT);
static SUNXI_CCU_GATE(avs_clk, "avs", "osc24M", 0x144, BIT(31), 0);
static const char * const hdmi_parents[] = { "pll-video1" };
static SUNXI_CCU_M_WITH_MUX_GATE(hdmi_clk, "hdmi", hdmi_parents,
0x150,
0, 4, /* M */
24, 2, /* mux */
BIT(31), /* gate */
CLK_SET_RATE_PARENT);
static SUNXI_CCU_GATE(hdmi_slow_clk, "hdmi-slow", "osc24M", 0x154, BIT(31), 0);
static const char * const mbus_parents[] = { "osc24M", "pll-periph",
"pll-ddr" };
static SUNXI_CCU_M_WITH_MUX_GATE(mbus_clk, "mbus", mbus_parents,
0x15c,
0, 3, /* M */
24, 2, /* mux */
BIT(31), /* gate */
CLK_IS_CRITICAL);
static const char * const mipi_dsi0_parents[] = { "pll-video0" };
static const u8 mipi_dsi0_table[] = { 8 };
static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(mipi_dsi0_clk, "mipi-dsi0",
mipi_dsi0_parents, mipi_dsi0_table,
0x168,
0, 4, /* M */
24, 4, /* mux */
BIT(31), /* gate */
CLK_SET_RATE_PARENT);
static const char * const mipi_dsi1_parents[] = { "osc24M", "pll-video0" };
static const u8 mipi_dsi1_table[] = { 0, 9 };
static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(mipi_dsi1_clk, "mipi-dsi1",
mipi_dsi1_parents, mipi_dsi1_table,
0x16c,
0, 4, /* M */
24, 4, /* mux */
BIT(31), /* gate */
CLK_SET_RATE_PARENT);
static SUNXI_CCU_M_WITH_GATE(gpu_core_clk, "gpu-core", "pll-gpu", 0x1a0,
0, 3, BIT(31), CLK_SET_RATE_PARENT);
static const char * const gpu_memory_parents[] = { "pll-gpu", "pll-ddr" };
static SUNXI_CCU_M_WITH_MUX_GATE(gpu_memory_clk, "gpu-memory",
gpu_memory_parents,
0x1a4,
0, 3, /* M */
24, 1, /* mux */
BIT(31), /* gate */
CLK_SET_RATE_PARENT);
static SUNXI_CCU_M_WITH_GATE(gpu_hyd_clk, "gpu-hyd", "pll-gpu", 0x1a8,
0, 3, BIT(31), CLK_SET_RATE_PARENT);
static struct ccu_common *sun8i_a83t_ccu_clks[] = {
&pll_c0cpux_clk.common,
&pll_c1cpux_clk.common,
&pll_audio_clk.common,
&pll_video0_clk.common,
&pll_ve_clk.common,
&pll_ddr_clk.common,
&pll_periph_clk.common,
&pll_gpu_clk.common,
&pll_hsic_clk.common,
&pll_de_clk.common,
&pll_video1_clk.common,
&c0cpux_clk.common,
&c1cpux_clk.common,
&axi0_clk.common,
&axi1_clk.common,
&ahb1_clk.common,
&ahb2_clk.common,
&apb1_clk.common,
&apb2_clk.common,
&bus_mipi_dsi_clk.common,
&bus_ss_clk.common,
&bus_dma_clk.common,
&bus_mmc0_clk.common,
&bus_mmc1_clk.common,
&bus_mmc2_clk.common,
&bus_nand_clk.common,
&bus_dram_clk.common,
&bus_emac_clk.common,
&bus_hstimer_clk.common,
&bus_spi0_clk.common,
&bus_spi1_clk.common,
&bus_otg_clk.common,
&bus_ehci0_clk.common,
&bus_ehci1_clk.common,
&bus_ohci0_clk.common,
&bus_ve_clk.common,
&bus_tcon0_clk.common,
&bus_tcon1_clk.common,
&bus_csi_clk.common,
&bus_hdmi_clk.common,
&bus_de_clk.common,
&bus_gpu_clk.common,
&bus_msgbox_clk.common,
&bus_spinlock_clk.common,
&bus_spdif_clk.common,
&bus_pio_clk.common,
&bus_i2s0_clk.common,
&bus_i2s1_clk.common,
&bus_i2s2_clk.common,
&bus_tdm_clk.common,
&bus_i2c0_clk.common,
&bus_i2c1_clk.common,
&bus_i2c2_clk.common,
&bus_uart0_clk.common,
&bus_uart1_clk.common,
&bus_uart2_clk.common,
&bus_uart3_clk.common,
&bus_uart4_clk.common,
&cci400_clk.common,
&nand_clk.common,
&mmc0_clk.common,
&mmc0_sample_clk.common,
&mmc0_output_clk.common,
&mmc1_clk.common,
&mmc1_sample_clk.common,
&mmc1_output_clk.common,
&mmc2_clk.common,
&mmc2_sample_clk.common,
&mmc2_output_clk.common,
&ss_clk.common,
&spi0_clk.common,
&spi1_clk.common,
&i2s0_clk.common,
&i2s1_clk.common,
&i2s2_clk.common,
&tdm_clk.common,
&spdif_clk.common,
&usb_phy0_clk.common,
&usb_phy1_clk.common,
&usb_hsic_clk.common,
&usb_hsic_12m_clk.common,
&usb_ohci0_clk.common,
&dram_clk.common,
&dram_ve_clk.common,
&dram_csi_clk.common,
&tcon0_clk.common,
&tcon1_clk.common,
&csi_misc_clk.common,
&mipi_csi_clk.common,
&csi_mclk_clk.common,
&csi_sclk_clk.common,
&ve_clk.common,
&avs_clk.common,
&hdmi_clk.common,
&hdmi_slow_clk.common,
&mbus_clk.common,
&mipi_dsi0_clk.common,
&mipi_dsi1_clk.common,
&gpu_core_clk.common,
&gpu_memory_clk.common,
&gpu_hyd_clk.common,
};
static struct clk_hw_onecell_data sun8i_a83t_hw_clks = {
.hws = {
[CLK_PLL_C0CPUX] = &pll_c0cpux_clk.common.hw,
[CLK_PLL_C1CPUX] = &pll_c1cpux_clk.common.hw,
[CLK_PLL_AUDIO] = &pll_audio_clk.common.hw,
[CLK_PLL_VIDEO0] = &pll_video0_clk.common.hw,
[CLK_PLL_VE] = &pll_ve_clk.common.hw,
[CLK_PLL_DDR] = &pll_ddr_clk.common.hw,
[CLK_PLL_PERIPH] = &pll_periph_clk.common.hw,
[CLK_PLL_GPU] = &pll_gpu_clk.common.hw,
[CLK_PLL_HSIC] = &pll_hsic_clk.common.hw,
[CLK_PLL_DE] = &pll_de_clk.common.hw,
[CLK_PLL_VIDEO1] = &pll_video1_clk.common.hw,
[CLK_C0CPUX] = &c0cpux_clk.common.hw,
[CLK_C1CPUX] = &c1cpux_clk.common.hw,
[CLK_AXI0] = &axi0_clk.common.hw,
[CLK_AXI1] = &axi1_clk.common.hw,
[CLK_AHB1] = &ahb1_clk.common.hw,
[CLK_AHB2] = &ahb2_clk.common.hw,
[CLK_APB1] = &apb1_clk.common.hw,
[CLK_APB2] = &apb2_clk.common.hw,
[CLK_BUS_MIPI_DSI] = &bus_mipi_dsi_clk.common.hw,
[CLK_BUS_SS] = &bus_ss_clk.common.hw,
[CLK_BUS_DMA] = &bus_dma_clk.common.hw,
[CLK_BUS_MMC0] = &bus_mmc0_clk.common.hw,
[CLK_BUS_MMC1] = &bus_mmc1_clk.common.hw,
[CLK_BUS_MMC2] = &bus_mmc2_clk.common.hw,
[CLK_BUS_NAND] = &bus_nand_clk.common.hw,
[CLK_BUS_DRAM] = &bus_dram_clk.common.hw,
[CLK_BUS_EMAC] = &bus_emac_clk.common.hw,
[CLK_BUS_HSTIMER] = &bus_hstimer_clk.common.hw,
[CLK_BUS_SPI0] = &bus_spi0_clk.common.hw,
[CLK_BUS_SPI1] = &bus_spi1_clk.common.hw,
[CLK_BUS_OTG] = &bus_otg_clk.common.hw,
[CLK_BUS_EHCI0] = &bus_ehci0_clk.common.hw,
[CLK_BUS_EHCI1] = &bus_ehci1_clk.common.hw,
[CLK_BUS_OHCI0] = &bus_ohci0_clk.common.hw,
[CLK_BUS_VE] = &bus_ve_clk.common.hw,
[CLK_BUS_TCON0] = &bus_tcon0_clk.common.hw,
[CLK_BUS_TCON1] = &bus_tcon1_clk.common.hw,
[CLK_BUS_CSI] = &bus_csi_clk.common.hw,
[CLK_BUS_HDMI] = &bus_hdmi_clk.common.hw,
[CLK_BUS_DE] = &bus_de_clk.common.hw,
[CLK_BUS_GPU] = &bus_gpu_clk.common.hw,
[CLK_BUS_MSGBOX] = &bus_msgbox_clk.common.hw,
[CLK_BUS_SPINLOCK] = &bus_spinlock_clk.common.hw,
[CLK_BUS_SPDIF] = &bus_spdif_clk.common.hw,
[CLK_BUS_PIO] = &bus_pio_clk.common.hw,
[CLK_BUS_I2S0] = &bus_i2s0_clk.common.hw,
[CLK_BUS_I2S1] = &bus_i2s1_clk.common.hw,
[CLK_BUS_I2S2] = &bus_i2s2_clk.common.hw,
[CLK_BUS_TDM] = &bus_tdm_clk.common.hw,
[CLK_BUS_I2C0] = &bus_i2c0_clk.common.hw,
[CLK_BUS_I2C1] = &bus_i2c1_clk.common.hw,
[CLK_BUS_I2C2] = &bus_i2c2_clk.common.hw,
[CLK_BUS_UART0] = &bus_uart0_clk.common.hw,
[CLK_BUS_UART1] = &bus_uart1_clk.common.hw,
[CLK_BUS_UART2] = &bus_uart2_clk.common.hw,
[CLK_BUS_UART3] = &bus_uart3_clk.common.hw,
[CLK_BUS_UART4] = &bus_uart4_clk.common.hw,
[CLK_CCI400] = &cci400_clk.common.hw,
[CLK_NAND] = &nand_clk.common.hw,
[CLK_MMC0] = &mmc0_clk.common.hw,
[CLK_MMC0_SAMPLE] = &mmc0_sample_clk.common.hw,
[CLK_MMC0_OUTPUT] = &mmc0_output_clk.common.hw,
[CLK_MMC1] = &mmc1_clk.common.hw,
[CLK_MMC1_SAMPLE] = &mmc1_sample_clk.common.hw,
[CLK_MMC1_OUTPUT] = &mmc1_output_clk.common.hw,
[CLK_MMC2] = &mmc2_clk.common.hw,
[CLK_MMC2_SAMPLE] = &mmc2_sample_clk.common.hw,
[CLK_MMC2_OUTPUT] = &mmc2_output_clk.common.hw,
[CLK_SS] = &ss_clk.common.hw,
[CLK_SPI0] = &spi0_clk.common.hw,
[CLK_SPI1] = &spi1_clk.common.hw,
[CLK_I2S0] = &i2s0_clk.common.hw,
[CLK_I2S1] = &i2s1_clk.common.hw,
[CLK_I2S2] = &i2s2_clk.common.hw,
[CLK_TDM] = &tdm_clk.common.hw,
[CLK_SPDIF] = &spdif_clk.common.hw,
[CLK_USB_PHY0] = &usb_phy0_clk.common.hw,
[CLK_USB_PHY1] = &usb_phy1_clk.common.hw,
[CLK_USB_HSIC] = &usb_hsic_clk.common.hw,
[CLK_USB_HSIC_12M] = &usb_hsic_12m_clk.common.hw,
[CLK_USB_OHCI0] = &usb_ohci0_clk.common.hw,
[CLK_DRAM] = &dram_clk.common.hw,
[CLK_DRAM_VE] = &dram_ve_clk.common.hw,
[CLK_DRAM_CSI] = &dram_csi_clk.common.hw,
[CLK_TCON0] = &tcon0_clk.common.hw,
[CLK_TCON1] = &tcon1_clk.common.hw,
[CLK_CSI_MISC] = &csi_misc_clk.common.hw,
[CLK_MIPI_CSI] = &mipi_csi_clk.common.hw,
[CLK_CSI_MCLK] = &csi_mclk_clk.common.hw,
[CLK_CSI_SCLK] = &csi_sclk_clk.common.hw,
[CLK_VE] = &ve_clk.common.hw,
[CLK_AVS] = &avs_clk.common.hw,
[CLK_HDMI] = &hdmi_clk.common.hw,
[CLK_HDMI_SLOW] = &hdmi_slow_clk.common.hw,
[CLK_MBUS] = &mbus_clk.common.hw,
[CLK_MIPI_DSI0] = &mipi_dsi0_clk.common.hw,
[CLK_MIPI_DSI1] = &mipi_dsi1_clk.common.hw,
[CLK_GPU_CORE] = &gpu_core_clk.common.hw,
[CLK_GPU_MEMORY] = &gpu_memory_clk.common.hw,
[CLK_GPU_HYD] = &gpu_hyd_clk.common.hw,
},
.num = CLK_NUMBER,
};
static struct ccu_reset_map sun8i_a83t_ccu_resets[] = {
[RST_USB_PHY0] = { 0x0cc, BIT(0) },
[RST_USB_PHY1] = { 0x0cc, BIT(1) },
[RST_USB_HSIC] = { 0x0cc, BIT(2) },
[RST_DRAM] = { 0x0f4, BIT(31) },
[RST_MBUS] = { 0x0fc, BIT(31) },
[RST_BUS_MIPI_DSI] = { 0x2c0, BIT(1) },
[RST_BUS_SS] = { 0x2c0, BIT(5) },
[RST_BUS_DMA] = { 0x2c0, BIT(6) },
[RST_BUS_MMC0] = { 0x2c0, BIT(8) },
[RST_BUS_MMC1] = { 0x2c0, BIT(9) },
[RST_BUS_MMC2] = { 0x2c0, BIT(10) },
[RST_BUS_NAND] = { 0x2c0, BIT(13) },
[RST_BUS_DRAM] = { 0x2c0, BIT(14) },
[RST_BUS_EMAC] = { 0x2c0, BIT(17) },
[RST_BUS_HSTIMER] = { 0x2c0, BIT(19) },
[RST_BUS_SPI0] = { 0x2c0, BIT(20) },
[RST_BUS_SPI1] = { 0x2c0, BIT(21) },
[RST_BUS_OTG] = { 0x2c0, BIT(24) },
[RST_BUS_EHCI0] = { 0x2c0, BIT(26) },
[RST_BUS_EHCI1] = { 0x2c0, BIT(27) },
[RST_BUS_OHCI0] = { 0x2c0, BIT(29) },
[RST_BUS_VE] = { 0x2c4, BIT(0) },
[RST_BUS_TCON0] = { 0x2c4, BIT(4) },
[RST_BUS_TCON1] = { 0x2c4, BIT(5) },
[RST_BUS_CSI] = { 0x2c4, BIT(8) },
[RST_BUS_HDMI0] = { 0x2c4, BIT(10) },
[RST_BUS_HDMI1] = { 0x2c4, BIT(11) },
[RST_BUS_DE] = { 0x2c4, BIT(12) },
[RST_BUS_GPU] = { 0x2c4, BIT(20) },
[RST_BUS_MSGBOX] = { 0x2c4, BIT(21) },
[RST_BUS_SPINLOCK] = { 0x2c4, BIT(22) },
[RST_BUS_LVDS] = { 0x2c8, BIT(0) },
[RST_BUS_SPDIF] = { 0x2d0, BIT(1) },
[RST_BUS_I2S0] = { 0x2d0, BIT(12) },
[RST_BUS_I2S1] = { 0x2d0, BIT(13) },
[RST_BUS_I2S2] = { 0x2d0, BIT(14) },
[RST_BUS_TDM] = { 0x2d0, BIT(15) },
[RST_BUS_I2C0] = { 0x2d8, BIT(0) },
[RST_BUS_I2C1] = { 0x2d8, BIT(1) },
[RST_BUS_I2C2] = { 0x2d8, BIT(2) },
[RST_BUS_UART0] = { 0x2d8, BIT(16) },
[RST_BUS_UART1] = { 0x2d8, BIT(17) },
[RST_BUS_UART2] = { 0x2d8, BIT(18) },
[RST_BUS_UART3] = { 0x2d8, BIT(19) },
[RST_BUS_UART4] = { 0x2d8, BIT(20) },
};
static const struct sunxi_ccu_desc sun8i_a83t_ccu_desc = {
.ccu_clks = sun8i_a83t_ccu_clks,
.num_ccu_clks = ARRAY_SIZE(sun8i_a83t_ccu_clks),
.hw_clks = &sun8i_a83t_hw_clks,
.resets = sun8i_a83t_ccu_resets,
.num_resets = ARRAY_SIZE(sun8i_a83t_ccu_resets),
};
#define SUN8I_A83T_PLL_P_SHIFT 16
#define SUN8I_A83T_PLL_N_SHIFT 8
#define SUN8I_A83T_PLL_N_WIDTH 8
static void sun8i_a83t_cpu_pll_fixup(void __iomem *reg)
{
u32 val = readl(reg);
/* bail out if P divider is not used */
if (!(val & BIT(SUN8I_A83T_PLL_P_SHIFT)))
return;
/*
* If P is used, output should be less than 288 MHz. When we
* set P to 1, we should also decrease the multiplier so the
* output doesn't go out of range, but not too much such that
* the multiplier stays above 12, the minimal operation value.
*
* To keep it simple, set the multiplier to 17, the reset value.
*/
val &= ~GENMASK(SUN8I_A83T_PLL_N_SHIFT + SUN8I_A83T_PLL_N_WIDTH - 1,
SUN8I_A83T_PLL_N_SHIFT);
val |= 17 << SUN8I_A83T_PLL_N_SHIFT;
/* And clear P */
val &= ~BIT(SUN8I_A83T_PLL_P_SHIFT);
writel(val, reg);
}
static int sun8i_a83t_ccu_probe(struct platform_device *pdev)
{
struct resource *res;
void __iomem *reg;
u32 val;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
reg = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(reg))
return PTR_ERR(reg);
/* Enforce d1 = 0, d2 = 0 for Audio PLL */
val = readl(reg + SUN8I_A83T_PLL_AUDIO_REG);
val &= ~(BIT(16) | BIT(18));
writel(val, reg + SUN8I_A83T_PLL_AUDIO_REG);
/* Enforce P = 1 for both CPU cluster PLLs */
sun8i_a83t_cpu_pll_fixup(reg + SUN8I_A83T_PLL_C0CPUX_REG);
sun8i_a83t_cpu_pll_fixup(reg + SUN8I_A83T_PLL_C1CPUX_REG);
return sunxi_ccu_probe(pdev->dev.of_node, reg, &sun8i_a83t_ccu_desc);
}
static const struct of_device_id sun8i_a83t_ccu_ids[] = {
{ .compatible = "allwinner,sun8i-a83t-ccu" },
{ }
};
static struct platform_driver sun8i_a83t_ccu_driver = {
.probe = sun8i_a83t_ccu_probe,
.driver = {
.name = "sun8i-a83t-ccu",
.of_match_table = sun8i_a83t_ccu_ids,
},
};
builtin_platform_driver(sun8i_a83t_ccu_driver);