diff options
Diffstat (limited to 'drivers/clk/sunxi-ng/ccu-sun8i-a83t.c')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu-sun8i-a83t.c | 922 |
1 files changed, 922 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c b/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c new file mode 100644 index 000000000000..947f9f6e05d2 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c @@ -0,0 +1,922 @@ +/* + * 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" + +#define CCU_SUN8I_A83T_LOCK_REG 0x20c + +/* + * 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), + .m = _SUNXI_CCU_DIV(0, 6), + .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); + +/* TODO Support MMC2 clock's new timing mode. */ +static SUNXI_CCU_MP_WITH_MUX_GATE(mmc2_clk, "mmc2", mod0_default_parents, + 0x090, + 0, 4, /* M */ + 16, 2, /* P */ + 24, 2, /* mux */ + BIT(31), /* gate */ + 0); + +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); |
