/* $NetBSD: sun8i_h3_ccu.c,v 1.8.4.4 2017/08/09 05:49:50 snj Exp $ */ /*- * Copyright (c) 2017 Jared McNeill * Copyright (c) 2017 Emmanuel Vadot * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __KERNEL_RCSID(1, "$NetBSD: sun8i_h3_ccu.c,v 1.8.4.4 2017/08/09 05:49:50 snj Exp $"); #include #include #include #include #include #include #include #define PLL_AUDIO_CTRL_REG 0x008 #define PLL_PERIPH0_CTRL_REG 0x028 #define AHB1_APB1_CFG_REG 0x054 #define APB2_CFG_REG 0x058 #define AHB2_CFG_REG 0x05c #define AHB2_CLK_CFG __BITS(1,0) #define AHB2_CLK_CFG_PLL_PERIPH0_2 1 #define BUS_CLK_GATING_REG0 0x060 #define BUS_CLK_GATING_REG2 0x068 #define BUS_CLK_GATING_REG3 0x06c #define SDMMC0_CLK_REG 0x088 #define SDMMC1_CLK_REG 0x08c #define SDMMC2_CLK_REG 0x090 #define USBPHY_CFG_REG 0x0cc #define MBUS_RST_REG 0x0fc #define AC_DIG_CLK_REG 0x140 #define BUS_SOFT_RST_REG0 0x2c0 #define BUS_SOFT_RST_REG1 0x2c4 #define BUS_SOFT_RST_REG2 0x2c8 #define BUS_SOFT_RST_REG3 0x2d0 #define BUS_SOFT_RST_REG4 0x2d8 static int sun8i_h3_ccu_match(device_t, cfdata_t, void *); static void sun8i_h3_ccu_attach(device_t, device_t, void *); static const char * const compatible[] = { "allwinner,sun8i-h3-ccu", NULL }; CFATTACH_DECL_NEW(sunxi_h3_ccu, sizeof(struct sunxi_ccu_softc), sun8i_h3_ccu_match, sun8i_h3_ccu_attach, NULL, NULL); static struct sunxi_ccu_reset sun8i_h3_ccu_resets[] = { SUNXI_CCU_RESET(H3_RST_USB_PHY0, USBPHY_CFG_REG, 0), SUNXI_CCU_RESET(H3_RST_USB_PHY1, USBPHY_CFG_REG, 1), SUNXI_CCU_RESET(H3_RST_USB_PHY2, USBPHY_CFG_REG, 2), SUNXI_CCU_RESET(H3_RST_USB_PHY3, USBPHY_CFG_REG, 3), SUNXI_CCU_RESET(H3_RST_MBUS, MBUS_RST_REG, 31), SUNXI_CCU_RESET(H3_RST_BUS_CE, BUS_SOFT_RST_REG0, 5), SUNXI_CCU_RESET(H3_RST_BUS_DMA, BUS_SOFT_RST_REG0, 6), SUNXI_CCU_RESET(H3_RST_BUS_MMC0, BUS_SOFT_RST_REG0, 8), SUNXI_CCU_RESET(H3_RST_BUS_MMC1, BUS_SOFT_RST_REG0, 9), SUNXI_CCU_RESET(H3_RST_BUS_MMC2, BUS_SOFT_RST_REG0, 10), SUNXI_CCU_RESET(H3_RST_BUS_NAND, BUS_SOFT_RST_REG0, 13), SUNXI_CCU_RESET(H3_RST_BUS_DRAM, BUS_SOFT_RST_REG0, 14), SUNXI_CCU_RESET(H3_RST_BUS_EMAC, BUS_SOFT_RST_REG0, 17), SUNXI_CCU_RESET(H3_RST_BUS_TS, BUS_SOFT_RST_REG0, 18), SUNXI_CCU_RESET(H3_RST_BUS_HSTIMER, BUS_SOFT_RST_REG0, 19), SUNXI_CCU_RESET(H3_RST_BUS_SPI0, BUS_SOFT_RST_REG0, 20), SUNXI_CCU_RESET(H3_RST_BUS_SPI1, BUS_SOFT_RST_REG0, 21), SUNXI_CCU_RESET(H3_RST_BUS_OTG, BUS_SOFT_RST_REG0, 23), SUNXI_CCU_RESET(H3_RST_BUS_EHCI0, BUS_SOFT_RST_REG0, 24), SUNXI_CCU_RESET(H3_RST_BUS_EHCI1, BUS_SOFT_RST_REG0, 25), SUNXI_CCU_RESET(H3_RST_BUS_EHCI2, BUS_SOFT_RST_REG0, 26), SUNXI_CCU_RESET(H3_RST_BUS_EHCI3, BUS_SOFT_RST_REG0, 27), SUNXI_CCU_RESET(H3_RST_BUS_OHCI0, BUS_SOFT_RST_REG0, 28), SUNXI_CCU_RESET(H3_RST_BUS_OHCI1, BUS_SOFT_RST_REG0, 29), SUNXI_CCU_RESET(H3_RST_BUS_OHCI2, BUS_SOFT_RST_REG0, 30), SUNXI_CCU_RESET(H3_RST_BUS_OHCI3, BUS_SOFT_RST_REG0, 31), SUNXI_CCU_RESET(H3_RST_BUS_VE, BUS_SOFT_RST_REG1, 0), SUNXI_CCU_RESET(H3_RST_BUS_TCON0, BUS_SOFT_RST_REG1, 3), SUNXI_CCU_RESET(H3_RST_BUS_TCON1, BUS_SOFT_RST_REG1, 4), SUNXI_CCU_RESET(H3_RST_BUS_DEINTERLACE, BUS_SOFT_RST_REG1, 5), SUNXI_CCU_RESET(H3_RST_BUS_CSI, BUS_SOFT_RST_REG1, 8), SUNXI_CCU_RESET(H3_RST_BUS_TVE, BUS_SOFT_RST_REG1, 9), SUNXI_CCU_RESET(H3_RST_BUS_HDMI0, BUS_SOFT_RST_REG1, 10), SUNXI_CCU_RESET(H3_RST_BUS_HDMI1, BUS_SOFT_RST_REG1, 11), SUNXI_CCU_RESET(H3_RST_BUS_DE, BUS_SOFT_RST_REG1, 12), SUNXI_CCU_RESET(H3_RST_BUS_GPU, BUS_SOFT_RST_REG1, 20), SUNXI_CCU_RESET(H3_RST_BUS_MSGBOX, BUS_SOFT_RST_REG1, 21), SUNXI_CCU_RESET(H3_RST_BUS_SPINLOCK, BUS_SOFT_RST_REG1, 22), SUNXI_CCU_RESET(H3_RST_BUS_DBG, BUS_SOFT_RST_REG1, 31), SUNXI_CCU_RESET(H3_RST_BUS_EPHY, BUS_SOFT_RST_REG2, 2), SUNXI_CCU_RESET(H3_RST_BUS_CODEC, BUS_SOFT_RST_REG3, 0), SUNXI_CCU_RESET(H3_RST_BUS_SPDIF, BUS_SOFT_RST_REG3, 1), SUNXI_CCU_RESET(H3_RST_BUS_THS, BUS_SOFT_RST_REG3, 8), SUNXI_CCU_RESET(H3_RST_BUS_I2S0, BUS_SOFT_RST_REG3, 12), SUNXI_CCU_RESET(H3_RST_BUS_I2S1, BUS_SOFT_RST_REG3, 13), SUNXI_CCU_RESET(H3_RST_BUS_I2S2, BUS_SOFT_RST_REG3, 14), SUNXI_CCU_RESET(H3_RST_BUS_I2C0, BUS_SOFT_RST_REG4, 0), SUNXI_CCU_RESET(H3_RST_BUS_I2C1, BUS_SOFT_RST_REG4, 1), SUNXI_CCU_RESET(H3_RST_BUS_I2C2, BUS_SOFT_RST_REG4, 2), SUNXI_CCU_RESET(H3_RST_BUS_UART0, BUS_SOFT_RST_REG4, 16), SUNXI_CCU_RESET(H3_RST_BUS_UART1, BUS_SOFT_RST_REG4, 17), SUNXI_CCU_RESET(H3_RST_BUS_UART2, BUS_SOFT_RST_REG4, 18), SUNXI_CCU_RESET(H3_RST_BUS_UART3, BUS_SOFT_RST_REG4, 19), SUNXI_CCU_RESET(H3_RST_BUS_SCR, BUS_SOFT_RST_REG4, 20), }; static const char *ahb1_parents[] = { "losc", "hosc", "axi", "pll_periph0" }; static const char *ahb2_parents[] = { "ahb1", "pll_periph0" }; static const char *apb1_parents[] = { "ahb1" }; static const char *apb2_parents[] = { "losc", "hosc", "pll_periph0" }; static const char *mod_parents[] = { "hosc", "pll_periph0", "pll_periph1" }; static const struct sunxi_ccu_nkmp_tbl sunx8_h3_ac_dig_table[] = { { 24576000, 13, 0, 0, 13 }, { 0 } }; static struct sunxi_ccu_clk sun8i_h3_ccu_clks[] = { SUNXI_CCU_NKMP(H3_CLK_PLL_PERIPH0, "pll_periph0", "hosc", PLL_PERIPH0_CTRL_REG, /* reg */ __BITS(12,8), /* n */ __BITS(5,4), /* k */ 0, /* m */ __BITS(17,16), /* p */ __BIT(31), /* enable */ SUNXI_CCU_NKMP_DIVIDE_BY_TWO), SUNXI_CCU_NKMP_TABLE(H3_CLK_PLL_AUDIO_BASE, "pll_audio", "hosc", PLL_AUDIO_CTRL_REG, /* reg */ __BITS(14,8), /* n */ 0, /* k */ __BITS(4,0), /* m */ __BITS(19,16), /* p */ __BIT(31), /* enable */ __BIT(28), /* lock */ sunx8_h3_ac_dig_table, /* table */ 0), SUNXI_CCU_PREDIV(H3_CLK_AHB1, "ahb1", ahb1_parents, AHB1_APB1_CFG_REG, /* reg */ __BITS(7,6), /* prediv */ __BIT(3), /* prediv_sel */ __BITS(5,4), /* div */ __BITS(13,12), /* sel */ SUNXI_CCU_PREDIV_POWER_OF_TWO), SUNXI_CCU_PREDIV(H3_CLK_AHB2, "ahb2", ahb2_parents, AHB2_CFG_REG, /* reg */ 0, /* prediv */ __BIT(1), /* prediv_sel */ 0, /* div */ __BITS(1,0), /* sel */ SUNXI_CCU_PREDIV_DIVIDE_BY_TWO), SUNXI_CCU_DIV(H3_CLK_APB1, "apb1", apb1_parents, AHB1_APB1_CFG_REG, /* reg */ __BITS(9,8), /* div */ 0, /* sel */ SUNXI_CCU_DIV_POWER_OF_TWO|SUNXI_CCU_DIV_ZERO_IS_ONE), SUNXI_CCU_NM(H3_CLK_APB2, "apb2", apb2_parents, APB2_CFG_REG, /* reg */ __BITS(17,16), /* n */ __BITS(4,0), /* m */ __BITS(25,24), /* sel */ 0, /* enable */ SUNXI_CCU_NM_POWER_OF_TWO), SUNXI_CCU_NM(H3_CLK_MMC0, "mmc0", mod_parents, SDMMC0_CLK_REG, __BITS(17, 16), __BITS(3,0), __BITS(25, 24), __BIT(31), SUNXI_CCU_NM_POWER_OF_TWO|SUNXI_CCU_NM_ROUND_DOWN), SUNXI_CCU_PHASE(H3_CLK_MMC0_SAMPLE, "mmc0_sample", "mmc0", SDMMC0_CLK_REG, __BITS(22,20)), SUNXI_CCU_PHASE(H3_CLK_MMC0_OUTPUT, "mmc0_output", "mmc0", SDMMC0_CLK_REG, __BITS(10,8)), SUNXI_CCU_NM(H3_CLK_MMC1, "mmc1", mod_parents, SDMMC1_CLK_REG, __BITS(17, 16), __BITS(3,0), __BITS(25, 24), __BIT(31), SUNXI_CCU_NM_POWER_OF_TWO|SUNXI_CCU_NM_ROUND_DOWN), SUNXI_CCU_PHASE(H3_CLK_MMC1_SAMPLE, "mmc1_sample", "mmc1", SDMMC1_CLK_REG, __BITS(22,20)), SUNXI_CCU_PHASE(H3_CLK_MMC1_OUTPUT, "mmc1_output", "mmc1", SDMMC1_CLK_REG, __BITS(10,8)), SUNXI_CCU_NM(H3_CLK_MMC2, "mmc2", mod_parents, SDMMC2_CLK_REG, __BITS(17, 16), __BITS(3,0), __BITS(25, 24), __BIT(31), SUNXI_CCU_NM_POWER_OF_TWO|SUNXI_CCU_NM_ROUND_DOWN), SUNXI_CCU_PHASE(H3_CLK_MMC2_SAMPLE, "mmc2_sample", "mmc2", SDMMC2_CLK_REG, __BITS(22,20)), SUNXI_CCU_PHASE(H3_CLK_MMC2_OUTPUT, "mmc2_output", "mmc2", SDMMC2_CLK_REG, __BITS(10,8)), SUNXI_CCU_GATE(H3_CLK_AC_DIG, "ac_dig", "pll_audio", AC_DIG_CLK_REG, 31), SUNXI_CCU_GATE(H3_CLK_BUS_DMA, "bus-dma", "ahb1", BUS_CLK_GATING_REG0, 6), SUNXI_CCU_GATE(H3_CLK_BUS_MMC0, "bus-mmc0", "ahb1", BUS_CLK_GATING_REG0, 8), SUNXI_CCU_GATE(H3_CLK_BUS_MMC1, "bus-mmc1", "ahb1", BUS_CLK_GATING_REG0, 9), SUNXI_CCU_GATE(H3_CLK_BUS_MMC2, "bus-mmc2", "ahb1", BUS_CLK_GATING_REG0, 10), SUNXI_CCU_GATE(H3_CLK_BUS_EMAC, "bus-emac", "ahb2", BUS_CLK_GATING_REG0, 17), SUNXI_CCU_GATE(H3_CLK_BUS_OTG, "bus-otg", "ahb1", BUS_CLK_GATING_REG0, 23), SUNXI_CCU_GATE(H3_CLK_BUS_EHCI0, "bus-ehci0", "ahb1", BUS_CLK_GATING_REG0, 24), SUNXI_CCU_GATE(H3_CLK_BUS_EHCI1, "bus-ehci1", "ahb2", BUS_CLK_GATING_REG0, 25), SUNXI_CCU_GATE(H3_CLK_BUS_EHCI2, "bus-ehci2", "ahb2", BUS_CLK_GATING_REG0, 26), SUNXI_CCU_GATE(H3_CLK_BUS_EHCI3, "bus-ehci3", "ahb2", BUS_CLK_GATING_REG0, 27), SUNXI_CCU_GATE(H3_CLK_BUS_OHCI0, "bus-ohci0", "ahb1", BUS_CLK_GATING_REG0, 28), SUNXI_CCU_GATE(H3_CLK_BUS_OHCI1, "bus-ohci1", "ahb2", BUS_CLK_GATING_REG0, 29), SUNXI_CCU_GATE(H3_CLK_BUS_OHCI2, "bus-ohci2", "ahb2", BUS_CLK_GATING_REG0, 30), SUNXI_CCU_GATE(H3_CLK_BUS_OHCI3, "bus-ohci3", "ahb2", BUS_CLK_GATING_REG0, 31), SUNXI_CCU_GATE(H3_CLK_BUS_CODEC, "bus-codec", "apb1", BUS_CLK_GATING_REG2, 0), SUNXI_CCU_GATE(H3_CLK_BUS_PIO, "bus-pio", "apb1", BUS_CLK_GATING_REG2, 5), SUNXI_CCU_GATE(H3_CLK_BUS_I2C0, "bus-i2c0", "apb2", BUS_CLK_GATING_REG3, 0), SUNXI_CCU_GATE(H3_CLK_BUS_I2C1, "bus-i2c1", "apb2", BUS_CLK_GATING_REG3, 1), SUNXI_CCU_GATE(H3_CLK_BUS_I2C2, "bus-i2c2", "apb2", BUS_CLK_GATING_REG3, 2), SUNXI_CCU_GATE(H3_CLK_BUS_UART0, "bus-uart0", "apb2", BUS_CLK_GATING_REG3, 16), SUNXI_CCU_GATE(H3_CLK_BUS_UART1, "bus-uart1", "apb2", BUS_CLK_GATING_REG3, 17), SUNXI_CCU_GATE(H3_CLK_BUS_UART2, "bus-uart2", "apb2", BUS_CLK_GATING_REG3, 18), SUNXI_CCU_GATE(H3_CLK_BUS_UART3, "bus-uart3", "apb2", BUS_CLK_GATING_REG3, 19), SUNXI_CCU_GATE(H3_CLK_USBPHY0, "usb-phy0", "hosc", USBPHY_CFG_REG, 8), SUNXI_CCU_GATE(H3_CLK_USBPHY1, "usb-phy1", "hosc", USBPHY_CFG_REG, 9), SUNXI_CCU_GATE(H3_CLK_USBPHY2, "usb-phy2", "hosc", USBPHY_CFG_REG, 10), SUNXI_CCU_GATE(H3_CLK_USBPHY3, "usb-phy3", "hosc", USBPHY_CFG_REG, 11), SUNXI_CCU_GATE(H3_CLK_USBOHCI0, "usb-ohci0", "hosc", USBPHY_CFG_REG, 16), SUNXI_CCU_GATE(H3_CLK_USBOHCI1, "usb-ohci1", "hosc", USBPHY_CFG_REG, 17), SUNXI_CCU_GATE(H3_CLK_USBOHCI2, "usb-ohci2", "hosc", USBPHY_CFG_REG, 18), SUNXI_CCU_GATE(H3_CLK_USBOHCI3, "usb-ohci3", "hosc", USBPHY_CFG_REG, 19), }; static void sun8i_h3_ccu_init(struct sunxi_ccu_softc *sc) { uint32_t val; /* Set AHB2 source to PLL_PERIPH/2 */ val = CCU_READ(sc, AHB2_CFG_REG); val &= ~AHB2_CLK_CFG; val |= __SHIFTIN(AHB2_CLK_CFG_PLL_PERIPH0_2, AHB2_CLK_CFG); CCU_WRITE(sc, AHB2_CFG_REG, val); } static int sun8i_h3_ccu_match(device_t parent, cfdata_t cf, void *aux) { struct fdt_attach_args * const faa = aux; return of_match_compatible(faa->faa_phandle, compatible); } static void sun8i_h3_ccu_attach(device_t parent, device_t self, void *aux) { struct sunxi_ccu_softc * const sc = device_private(self); struct fdt_attach_args * const faa = aux; sc->sc_dev = self; sc->sc_phandle = faa->faa_phandle; sc->sc_bst = faa->faa_bst; sc->sc_resets = sun8i_h3_ccu_resets; sc->sc_nresets = __arraycount(sun8i_h3_ccu_resets); sc->sc_clks = sun8i_h3_ccu_clks; sc->sc_nclks = __arraycount(sun8i_h3_ccu_clks); if (sunxi_ccu_attach(sc) != 0) return; aprint_naive("\n"); aprint_normal(": H3 CCU\n"); sun8i_h3_ccu_init(sc); sunxi_ccu_print(sc); }