/*      $NetBSD: ingenic_regs.h,v 1.28 2025/01/07 18:51:40 andvar Exp $ */

/*-
 * Copyright (c) 2014 Michael Lorenz
 * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``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 FOUNDATION OR CONTRIBUTORS
 * 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.
 */

#ifndef INGENIC_REGS_H
#define INGENIC_REGS_H

/* for wbflush() */
#include <mips/locore.h>

/* UARTs, mostly 16550 compatible with 32bit spaced registers */
#define JZ_UART0 0x10030000
#define JZ_UART1 0x10031000
#define JZ_UART2 0x10032000
#define JZ_UART3 0x10033000
#define JZ_UART4 0x10034000

/* LCD controller base addresses, registers are in jzfb_regs.h */
#define JZ_LCDC0_BASE 0x13050000
#define JZ_LCDC1_BASE 0x130a0000

/* watchdog */
#define JZ_WDOG_TDR     0x10002000      /* compare */
#define JZ_WDOG_TCER    0x10002004
        #define TCER_ENABLE     0x01    /* enable counter */
#define JZ_WDOG_TCNT    0x10002008      /* 16bit up count */
#define JZ_WDOG_TCSR    0x1000200c
        #define TCSR_PCK_EN     0x01    /* PCLK */
        #define TCSR_RTC_EN     0x02    /* RTCCLK - 32.768kHz */
        #define TCSR_EXT_EN     0x04    /* EXTCLK - 48MHz */
        #define TCSR_PRESCALE_M 0x38
        #define TCSR_DIV_1      0x00
        #define TCSR_DIV_4      0x08
        #define TCSR_DIV_16     0x10
        #define TCSR_DIV_64     0x18
        #define TCSR_DIV_256    0x20
        #define TCSR_DIV_1024   0x28

/* timers and PWMs */
#define JZ_TC_TER       0x10002010      /* TC enable reg, ro */
#define JZ_TC_TESR      0x10002014      /* TC enable set reg. */
        #define TESR_TCST0      0x0001  /* enable counter 0 */
        #define TESR_TCST1      0x0002  /* enable counter 1 */
        #define TESR_TCST2      0x0004  /* enable counter 2 */
        #define TESR_TCST3      0x0008  /* enable counter 3 */
        #define TESR_TCST4      0x0010  /* enable counter 4 */
        #define TESR_TCST5      0x0020  /* enable counter 5 */
        #define TESR_TCST6      0x0040  /* enable counter 6 */
        #define TESR_TCST7      0x0080  /* enable counter 7 */
        #define TESR_OST        0x8000  /* enable OST */
#define JZ_TC_TECR      0x10002018      /* TC enable clear reg. */
#define JZ_TC_TFR       0x10002020
        #define TFR_FFLAG0      0x00000001      /* channel 0 */
        #define TFR_FFLAG1      0x00000002      /* channel 1 */
        #define TFR_FFLAG2      0x00000004      /* channel 2 */
        #define TFR_FFLAG3      0x00000008      /* channel 3 */
        #define TFR_FFLAG4      0x00000010      /* channel 4 */
        #define TFR_FFLAG5      0x00000020      /* channel 5 */
        #define TFR_FFLAG6      0x00000040      /* channel 6 */
        #define TFR_FFLAG7      0x00000080      /* channel 7 */
        #define TFR_OSTFLAG     0x00008000      /* OS timer */
#define JZ_TC_TFSR      0x10002024      /* timer flag set */
#define JZ_TC_TFCR      0x10002028      /* timer flag clear */
#define JZ_TC_TMR       0x10002030      /* timer flag mask */
#define JZ_TC_TMSR      0x10002034      /* timer flag mask set */
#define JZ_TC_TMCR      0x10002038      /* timer flag mask clear*/

#define JZ_TC_TDFR(n)   (0x10002040 + (n * 0x10))       /* FULL compare */
#define JZ_TC_TDHR(n)   (0x10002044 + (n * 0x10))       /* HALF compare */
#define JZ_TC_TCNT(n)   (0x10002048 + (n * 0x10))       /* count */

#define JZ_TC_TCSR(n)   (0x1000204c + (n * 0x10))
/* same bits as in JZ_WDOG_TCSR */

/* operating system timer */
#define JZ_OST_DATA     0x100020e0      /* compare */
#define JZ_OST_CNT_LO   0x100020e4
#define JZ_OST_CNT_HI   0x100020e8
#define JZ_OST_CTRL     0x100020ec
        #define OSTC_PCK_EN     0x0001  /* use PCLK */
        #define OSTC_RTC_EN     0x0002  /* use RTCCLK */
        #define OSTC_EXT_EN     0x0004  /* use EXTCLK */
        #define OSTC_PRESCALE_M 0x0038
        #define OSTC_DIV_1      0x0000
        #define OSTC_DIV_4      0x0008
        #define OSTC_DIV_16     0x0010
        #define OSTC_DIV_64     0x0018
        #define OSTC_DIV_256    0x0020
        #define OSTC_DIV_1024   0x0028
        #define OSTC_SHUTDOWN   0x0200
        #define OSTC_MODE       0x8000  /* 0 - reset to 0 when = OST_DATA */
#define JZ_OST_CNT_U32  0x100020fc      /* copy of CNT_HI when reading CNT_LO */

static inline void
writereg(uint32_t reg, uint32_t val)
{
        *(volatile uint32_t *)MIPS_PHYS_TO_KSEG1(reg) = val;
        wbflush();
}

static inline uint32_t
readreg(uint32_t reg)
{
        wbflush();
        return *(volatile uint32_t *)MIPS_PHYS_TO_KSEG1(reg);
}


/* power management */
#define JZ_CPCCR        0x10000000      /* Clock Control Register */
        #define JZ_PDIV_M       0x000f0000      /* PCLK divider mask */
        #define JZ_PDIV_S       16              /* PCLK divider shift */
        #define JZ_CDIV_M       0x0000000f      /* CPU clock divider mask */
        #define JZ_CDIV_S       0               /* CPU clock divider shift */
#define JZ_LPCR         0x10000004      /* Low Power Control Register */
        #define JZ_PD_SCPU      0x80000000      /* power down 2nd CPU */
        #define JZ_SCPUS        0x08000000      /* CPU is powered down */
#define JZ_CPMPCR       0x10000014      /* MPLL */
        #define JZ_PLLM_S       19              /* PLL multiplier shift */
        #define JZ_PLLM_M       0xfff80000      /* PLL multiplier mask */
        #define JZ_PLLN_S       13              /* PLL divider shift */
        #define JZ_PLLN_M       0x0007e000      /* PLL divider mask */
        #define JZ_PLLP_S       9               /* PLL postdivider shift */
        #define JZ_PLLP_M       0x00001700      /* PLL postdivider mask */
        #define JZ_PLLON        0x00000010      /* PLL is on and stable */
        #define JZ_PLLBP        0x00000002      /* PLL bypass */
        #define JZ_PLLEN        0x00000001      /* PLL enable */
#define JZ_CPVPCR       0x1000001c      /* VPLL */
#define JZ_CLKGR0       0x10000020      /* CLocK Gating Registers */
        #define CLK_NEMC        (1 << 0)
        #define CLK_BCH         (1 << 1)
        #define CLK_OTG0        (1 << 2)
        #define CLK_MSC0        (1 << 3)
        #define CLK_SSI0        (1 << 4)
        #define CLK_SMB0        (1 << 5)
        #define CLK_SMB1        (1 << 6)
        #define CLK_SCC         (1 << 7)
        #define CLK_AIC         (1 << 8)
        #define CLK_TSSI0       (1 << 9)
        #define CLK_OWI         (1 << 10)
        #define CLK_MSC1        (1 << 11)
        #define CLK_MSC2        (1 << 12)
        #define CLK_KBC         (1 << 13)
        #define CLK_SADC        (1 << 14)
        #define CLK_UART0       (1 << 15)
        #define CLK_UART1       (1 << 16)
        #define CLK_UART2       (1 << 17)
        #define CLK_UART3       (1 << 18)
        #define CLK_SSI1        (1 << 19)
        #define CLK_SSI2        (1 << 20)
        #define CLK_PDMA        (1 << 21)
        #define CLK_GPS         (1 << 22)
        #define CLK_MAC         (1 << 23)
        #define CLK_UHC         (1 << 24)
        #define CLK_SMB2        (1 << 25)
        #define CLK_CIM         (1 << 26)
        #define CLK_TVE         (1 << 27)
        #define CLK_LCD         (1 << 28)
        #define CLK_IPU         (1 << 29)
        #define CLK_DDR0        (1 << 30)
        #define CLK_DDR1        (1 << 31)

#define JZ_OPCR         0x10000024      /* Oscillator Power Control Reg. */
        #define OPCR_IDLE_DIS   0x80000000      /* don't stop CPU clk on idle */
        #define OPCR_GPU_CLK_ST 0x40000000      /* stop GPU clock */
        #define OPCR_L2CM_M     0x0c000000
        #define OPCR_L2CM_ON    0x00000000      /* L2 stays on in sleep */
        #define OPCR_L2CM_RET   0x04000000      /* L2 retention mode in sleep */
        #define OPCR_L2CM_OFF   0x08000000      /* L2 powers down in sleep */
        #define OPCR_SPENDN0    0x00000080      /* 0 - OTG port forced down */
        #define OPCR_SPENDN1    0x00000040      /* 0 - UHC port forced down */
        #define OPCR_BUS_MODE   0x00000020      /* 1 - bursts */
        #define OPCR_O1SE       0x00000010      /* EXTCLK on in sleep */
        #define OPCR_PD         0x00000008      /* P0 down in sleep */
        #define OPCR_ERCS       0x00000004      /* 1 RTCCLK, 0 EXTCLK/512 */
        #define OPCR_CPU_MODE   0x00000002      /* 1 access 'accelerated' */
        #define OPCR_OSE        0x00000001      /* disable EXTCLK */
#define JZ_CLKGR1       0x10000028      /* CLocK Gating Registers */
        #define CLK_SMB3        (1 << 0)
        #define CLK_TSSI1       (1 << 1)
        #define CLK_VPU         (1 << 2)
        #define CLK_PCM         (1 << 3)
        #define CLK_GPU         (1 << 4)
        #define CLK_COMPRESS    (1 << 5)
        #define CLK_AIC1        (1 << 6)
        #define CLK_GPVLC       (1 << 7)
        #define CLK_OTG1        (1 << 8)
        #define CLK_HDMI        (1 << 9)
        #define CLK_UART4       (1 << 10)
        #define CLK_AHB_MON     (1 << 11)
        #define CLK_SMB4        (1 << 12)
        #define CLK_DES         (1 << 13)
        #define CLK_X2D         (1 << 14)
        #define CLK_P1          (1 << 15)

#define JZ_USBPCR       0x1000003c
        #define PCR_USB_MODE            0x80000000      /* 1 - otg */
        #define PCR_AVLD_REG            0x40000000
        #define PCR_IDPULLUP_MASK       0x30000000
        #define PCR_INCR_MASK           0x08000000
        #define PCR_TCRISETUNE          0x04000000
        #define PCR_COMMONONN           0x02000000
        #define PCR_VBUSVLDEXT          0x01000000
        #define PCR_VBUSVLDEXTSEL       0x00800000
        #define PCR_POR                 0x00400000
        #define PCR_SIDDQ               0x00200000
        #define PCR_OTG_DISABLE         0x00100000
        #define PCR_COMPDISTN_M         0x000e0000
        #define PCR_OTGTUNE             0x0001c000
        #define PCR_SQRXTUNE            0x00003800
        #define PCR_TXFSLSTUNE          0x00000780
        #define PCR_TXPREEMPHTUNE       0x00000040
        #define PCR_TXHSXVTUNE          0x00000030
        #define PCR_TXVREFTUNE          0x0000000f
#define JZ_USBRDT       0x10000040      /* Reset Detect Timer Register */
#define JZ_USBVBFIL     0x10000044
#define JZ_USBPCR1      0x10000048
        #define PCR_SYNOPSYS    0x10000000      /* Mentor mode otherwise */
        #define PCR_REFCLK_CORE 0x0c000000
        #define PCR_REFCLK_XO25 0x04000000
        #define PCR_REFCLK_CO   0x00000000
        #define PCR_CLK_M       0x03000000      /* clock */
        #define PCR_CLK_192     0x03000000      /* 19.2MHz */
        #define PCR_CLK_48      0x02000000      /* 48MHz */
        #define PCR_CLK_24      0x01000000      /* 24MHz */
        #define PCR_CLK_12      0x00000000      /* 12MHz */
        #define PCR_DMPD1       0x00800000      /* pull down D- on port 1 */
        #define PCR_DPPD1       0x00400000      /* pull down D+ on port 1 */
        #define PCR_PORT0_RST   0x00200000      /* port 0 reset */
        #define PCR_PORT1_RST   0x00100000      /* port 1 reset */
        #define PCR_WORD_I_F0   0x00080000      /* 1: 16bit/30M, 8/60 otherw. */
        #define PCR_WORD_I_F1   0x00040000      /* same for port 1 */
        #define PCR_COMPDISTUNE 0x00038000      /* disconnect threshold */
        #define PCR_SQRXTUNE1   0x00007000      /* squelch threshold */
        #define PCR_TXFSLSTUNE1 0x00000f00      /* FS/LS impedance adj. */
        #define PCR_TXPREEMPH   0x00000080      /* HS transm. pre-emphasis */
        #define PCR_TXHSXVTUNE1 0x00000060      /* dp/dm voltage adj. */
        #define PCR_TXVREFTUNE1 0x00000017      /* HS DC voltage adj. */
        #define PCR_TXRISETUNE1 0x00000001      /* rise/fall wave adj. */

#define JZ_UHCCDR       0x1000006c      /* UHC Clock Divider Register */
        #define UHCCDR_SCLK_A   0x00000000
        #define UHCCDR_MPLL     0x40000000
        #define UHCCDR_EPLL     0x80000000
        #define UHCCDR_OTG_PHY  0xc0000000
        #define UHCCDR_CE       0x20000000
        #define UHCCDR_BUSY     0x10000000
        #define UHCCDR_STOP     0x08000000
        #define UHCCDR_DIV_M    0x000000ff
#define JZ_SPCR0        0x100000b8      /* SRAM Power Control Registers */
#define JZ_SPCR1        0x100000bc
#define JZ_SRBC         0x100000c4      /* Soft Reset & Bus Control */

/* clock divider registers */
#define JZ_MSC0CDR      0x10000068
        #define MSCCDR_SCLK_A   0x40000000
        #define MSCCDR_MPLL     0x80000000
        #define MSCCDR_CE       0x20000000
        #define MSCCDR_BUSY     0x10000000
        #define MSCCDR_STOP     0x08000000
        #define MSCCDR_PHASE    0x00008000      /* 0 - 90deg phase, 1 - 180 */
        #define MSCCDR_DIV_M    0x000000ff      /* src / ((div + 1) * 2) */
        #define UHCCDR_DIV_M    0x000000ff
#define JZ_MSC1CDR      0x100000a4
#define JZ_MSC2CDR      0x100000a8

/*
 * random number generator
 *
 * Its function currently isn't documented by Ingenic.
 * However, testing suggests that it works as expected.
 */
#define JZ_ERNG 0x100000d8
#define JZ_RNG  0x100000dc

/* interrupt controller */
#define JZ_ICSR0        0x10001000      /* raw IRQ line status */
#define JZ_ICMR0        0x10001004      /* IRQ mask, 1 masks IRQ */
#define JZ_ICMSR0       0x10001008      /* sets bits in mask register */
#define JZ_ICMCR0       0x1000100c      /* clears bits in mask register */
#define JZ_ICPR0        0x10001010      /* line status after masking */

#define JZ_ICSR1        0x10001020      /* raw IRQ line status */
#define JZ_ICMR1        0x10001024      /* IRQ mask, 1 masks IRQ */
#define JZ_ICMSR1       0x10001028      /* sets bits in mask register */
#define JZ_ICMCR1       0x1000102c      /* clears bits in mask register */
#define JZ_ICPR1        0x10001030      /* line status after masking */

#define JZ_DSR0         0x10001034      /* source for PDMA */
#define JZ_DMR0         0x10001038      /* mask for PDMA */
#define JZ_DPR0         0x1000103c      /* pending for PDMA */

#define JZ_DSR1         0x10001040      /* source for PDMA */
#define JZ_DMR1         0x10001044      /* mask for PDMA */
#define JZ_DPR1         0x10001048      /* pending for PDMA */

/* memory controller */
#define JZ_DMMAP0       0x13010024
#define JZ_DMMAP1       0x13010028
        #define DMMAP_BASE      0x0000ff00      /* base PADDR of memory chunk */
        #define DMMAP_MASK      0x000000ff      /* mask which bits of PADDR are
                                                 * constant */
/* USB controllers */
#define JZ_EHCI_BASE    0x13490000
#define JZ_OHCI_BASE    0x134a0000
#define JZ_DWC2_BASE    0x13500000

/* Ethernet */
#define JZ_DME_BASE     0x16000000
#define JZ_DME_IO       0
#define JZ_DME_DATA     2

/* GPIO */
#define JZ_GPIO_A_BASE  0x10010000
#define JZ_GPIO_B_BASE  0x10010100
#define JZ_GPIO_C_BASE  0x10010200
#define JZ_GPIO_D_BASE  0x10010300
#define JZ_GPIO_E_BASE  0x10010400
#define JZ_GPIO_F_BASE  0x10010500

/* GPIO registers per port */
#define JZ_GPIO_PIN     0x00000000      /* pin level register */
/* 0 - normal gpio, 1 - interrupt */
#define JZ_GPIO_INT     0x00000010      /* interrupt register */
#define JZ_GPIO_INTS    0x00000014      /* interrupt set register */
#define JZ_GPIO_INTC    0x00000018      /* interrupt clear register */
/*
 * INT == 1: 1 disables interrupt
 * INT == 0: device select, see below
 */
#define JZ_GPIO_MASK    0x00000020      /* port mask register */
#define JZ_GPIO_MASKS   0x00000024      /* port mask set register */
#define JZ_GPIO_MASKC   0x00000028      /* port mask clear register */
/*
 * INT == 1: 0 - level triggered, 1 - edge triggered
 * INT == 0: 0 - device select, see below
 */
#define JZ_GPIO_PAT1    0x00000030      /* pattern 1 register */
#define JZ_GPIO_PAT1S   0x00000034      /* pattern 1 set register */
#define JZ_GPIO_PAT1C   0x00000038      /* pattern 1 clear register */
/*
 * INT == 1:
 *   PAT1 == 0: 0 - trigger on low, 1 - trigger on high
 *   PAT1 == 1: 0 - trigger on falling edge, 1 - trigger on rising edge
 * INT == 0:
 *   MASK == 0:
 *     PAT1 == 0: 0 - device 0, 1 - device 1
 *     PAT1 == 1: 0 - device 2, 1 - device 3
 *   MASK == 1:
 *     PAT1 == 0: set gpio output
 *     PAT1 == 1: pin is input
 */
#define JZ_GPIO_PAT0    0x00000040      /* pattern 0 register */
#define JZ_GPIO_PAT0S   0x00000044      /* pattern 0 set register */
#define JZ_GPIO_PAT0C   0x00000048      /* pattern 0 clear register */
/* 1 - interrupt happened */
#define JZ_GPIO_FLAG    0x00000050      /* flag register */
#define JZ_GPIO_FLAGC   0x00000058      /* flag clear register */
/* 1 - disable pull up/down resistors */
#define JZ_GPIO_DPULL   0x00000070      /* pull disable register */
#define JZ_GPIO_DPULLS  0x00000074      /* pull disable set register */
#define JZ_GPIO_DPULLC  0x00000078      /* pull disable clear register */
/* the following are uncommented in the manual */
#define JZ_GPIO_DRVL    0x00000080      /* drive low register */
#define JZ_GPIO_DRVLS   0x00000084      /* drive low set register */
#define JZ_GPIO_DRVLC   0x00000088      /* drive low clear register */
#define JZ_GPIO_DIR     0x00000090      /* direction register */
#define JZ_GPIO_DIRS    0x00000094      /* direction register */
#define JZ_GPIO_DIRC    0x00000098      /* direction register */
#define JZ_GPIO_DRVH    0x000000a0      /* drive high register */
#define JZ_GPIO_DRVHS   0x000000a4      /* drive high set register */
#define JZ_GPIO_DRVHC   0x000000a8      /* drive high clear register */

static inline void
gpio_as_output(uint32_t g, int pin)
{
        uint32_t mask = 1 << pin;
        uint32_t reg = JZ_GPIO_A_BASE + (g << 8);

        writereg(reg + JZ_GPIO_INTC, mask);     /* use as gpio */
        writereg(reg + JZ_GPIO_MASKS, mask);
        writereg(reg + JZ_GPIO_PAT1C, mask);    /* make output */
}

static inline void
gpio_set(uint32_t g, int pin, int level)
{
        uint32_t mask = 1 << pin;
        uint32_t reg = JZ_GPIO_A_BASE + (g << 8);

        reg += (level == 0) ? JZ_GPIO_PAT0C : JZ_GPIO_PAT0S;
        writereg(reg, mask);
}

static inline void
gpio_as_dev0(uint32_t g, int pin)
{
        uint32_t mask = 1 << pin;
        uint32_t reg = JZ_GPIO_A_BASE + (g << 8);

        writereg(reg + JZ_GPIO_INTC, mask);     /* use as gpio */
        writereg(reg + JZ_GPIO_MASKC, mask);    /* device mode */
        writereg(reg + JZ_GPIO_PAT1C, mask);    /* select 0 */
        writereg(reg + JZ_GPIO_PAT0C, mask);
}

static inline void
gpio_as_dev1(uint32_t g, int pin)
{
        uint32_t mask = 1 << pin;
        uint32_t reg = JZ_GPIO_A_BASE + (g << 8);

        writereg(reg + JZ_GPIO_INTC, mask);     /* use as gpio */
        writereg(reg + JZ_GPIO_MASKC, mask);    /* device mode */
        writereg(reg + JZ_GPIO_PAT1C, mask);    /* select 1 */
        writereg(reg + JZ_GPIO_PAT0S, mask);
}

static inline void
gpio_as_dev2(uint32_t g, int pin)
{
        uint32_t mask = 1 << pin;
        uint32_t reg = JZ_GPIO_A_BASE + (g << 8);

        writereg(reg + JZ_GPIO_INTC, mask);     /* use as gpio */
        writereg(reg + JZ_GPIO_MASKC, mask);    /* device mode */
        writereg(reg + JZ_GPIO_PAT1S, mask);    /* select 2 */
        writereg(reg + JZ_GPIO_PAT0C, mask);
}

static inline void
gpio_as_dev3(uint32_t g, int pin)
{
        uint32_t mask = 1 << pin;
        uint32_t reg = JZ_GPIO_A_BASE + (g << 8);

        writereg(reg + JZ_GPIO_INTC, mask);     /* use as gpio */
        writereg(reg + JZ_GPIO_MASKC, mask);    /* device mode */
        writereg(reg + JZ_GPIO_PAT1S, mask);    /* select 3 */
        writereg(reg + JZ_GPIO_PAT0S, mask);
}

static inline void
gpio_as_intr_level(uint32_t g, int pin)
{
        uint32_t mask = 1 << pin;
        uint32_t reg = JZ_GPIO_A_BASE + (g << 8);

        writereg(reg + JZ_GPIO_MASKS, mask);    /* mask it */
        writereg(reg + JZ_GPIO_INTS, mask);     /* use as interrupt */
        writereg(reg + JZ_GPIO_PAT1C, mask);    /* level trigger */
        writereg(reg + JZ_GPIO_PAT0S, mask);    /* trigger on high */
        writereg(reg + JZ_GPIO_FLAGC, mask);    /* clear it */
        writereg(reg + JZ_GPIO_MASKC, mask);    /* enable it */
}

static inline void
gpio_as_intr_level_low(uint32_t g, int pin)
{
        uint32_t mask = 1 << pin;
        uint32_t reg = JZ_GPIO_A_BASE + (g << 8);

        writereg(reg + JZ_GPIO_MASKS, mask);    /* mask it */
        writereg(reg + JZ_GPIO_INTS, mask);     /* use as interrupt */
        writereg(reg + JZ_GPIO_PAT1C, mask);    /* level trigger */
        writereg(reg + JZ_GPIO_PAT0C, mask);    /* trigger on low */
        writereg(reg + JZ_GPIO_FLAGC, mask);    /* clear it */
        writereg(reg + JZ_GPIO_MASKC, mask);    /* enable it */
}

static inline void
gpio_as_input(uint32_t g, int pin)
{
        uint32_t mask = 1 << pin;
        uint32_t reg = JZ_GPIO_A_BASE + (g << 8);

        writereg(reg + JZ_GPIO_MASKS, mask);    /* mask it */
        writereg(reg + JZ_GPIO_INTC, mask);     /* not an interrupt */
        writereg(reg + JZ_GPIO_PAT1S, mask);    /* use as input */
        writereg(reg + JZ_GPIO_FLAGC, mask);    /* clear it just in case */
}

/* I2C / SMBus */
#define JZ_SMB0_BASE    0x10050000
#define JZ_SMB1_BASE    0x10051000
#define JZ_SMB2_BASE    0x10052000
#define JZ_SMB3_BASE    0x10053000
#define JZ_SMB4_BASE    0x10054000

/* SMBus register offsets, per port */
#define JZ_SMBCON       0x00 /* SMB control */
        #define JZ_STPHLD       0x80 /* Stop Hold Enable bit */
        #define JZ_SLVDIS       0x40 /* 1 - slave disabled */
        #define JZ_REST         0x20 /* 1 - allow RESTART */
        #define JZ_MATP         0x10 /* 1 - enable 10bit addr. for master */
        #define JZ_SATP         0x08 /* 1 - enable 10bit addr. for slave */
        #define JZ_SPD_M        0x06 /* bus speed control */
        #define JZ_SPD_100KB    0x02 /* 100kBit/s mode */
        #define JZ_SPD_400KB    0x04 /* 400kBit/s mode */
        #define JZ_MD           0x01 /* enable master */
#define JZ_SMBTAR       0x04 /* SMB target address */
        #define JZ_SMATP        0x1000 /* enable 10bit master addr */
        #define JZ_SPECIAL      0x0800 /* 1 - special command */
        #define JZ_START        0x0400 /* 1 - send START */
        #define JZ_SMBTAR_M     0x03ff /* target address */
#define JZ_SMBSAR       0x08 /* SMB slave address */
#define JZ_SMBDC        0x10 /* SMB data buffer and command */
        #define JZ_CMD  0x100 /* 1 - read, 0 - write */
        #define JZ_DATA 0x0ff
#define JZ_SMBSHCNT     0x14 /* Standard speed SMB SCL high count */
#define JZ_SMBSLCNT     0x18 /* Standard speed SMB SCL low count */
#define JZ_SMBFHCNT     0x1C /* Fast speed SMB SCL high count */
#define JZ_SMBFLCNT     0x20 /* Fast speed SMB SCL low count */
#define JZ_SMBINTST     0x2C /* SMB Interrupt Status */
        #define JZ_ISTT         0x400   /* START or RESTART occurred */
        #define JZ_ISTP         0x200   /* STOP occurred */
        #define JZ_TXABT        0x40    /* ABORT occurred */
        #define JZ_TXEMP        0x10    /* TX FIFO is low */
        #define JZ_TXOF         0x08    /* TX FIFO is high */
        #define JZ_RXFL         0x04    /* RX FIFO is at  JZ_SMBRXTL*/
        #define JZ_RXOF         0x02    /* RX FIFO is high */
        #define JZ_RXUF         0x01    /* RX FIFO underflow */
#define JZ_SMBINTM      0x30 /* SMB Interrupt Mask */
#define JZ_SMBRXTL      0x38 /* SMB RxFIFO Threshold */
#define JZ_SMBTXTL      0x3C /* SMB TxFIFO Threshold */
#define JZ_SMBCINT      0x40 /* Clear Interrupts */
        #define JZ_CLEARALL     0x01
#define JZ_SMBCRXUF     0x44 /* Clear RXUF Interrupt */
#define JZ_SMBCRXOF     0x48 /* Clear RX_OVER Interrupt */
#define JZ_SMBCTXOF     0x4C /* Clear TX_OVER Interrupt */
#define JZ_SMBCRXREQ    0x50 /* Clear RDREQ Interrupt */
#define JZ_SMBCTXABT    0x54 /* Clear TX_ABRT Interrupt */
#define JZ_SMBCRXDN     0x58 /* Clear RX_DONE Interrupt */
#define JZ_SMBCACT      0x5c /* Clear ACTIVITY Interrupt */
#define JZ_SMBCSTP      0x60 /* Clear STOP Interrupt */
#define JZ_SMBCSTT      0x64 /* Clear START Interrupt */
#define JZ_SMBCGC       0x68 /* Clear GEN_CALL Interrupt */
#define JZ_SMBENB       0x6C /* SMB Enable */
        #define JZ_ENABLE       0x01
#define JZ_SMBST        0x70 /* SMB Status register */
        #define JZ_SLVACT       0x40 /* slave is active */
        #define JZ_MSTACT       0x20 /* master is active */
        #define JZ_RFF          0x10 /* RX FIFO is full */
        #define JZ_RFNE         0x08 /* RX FIFO not empty */
        #define JZ_TFE          0x04 /* TX FIFO is empty */
        #define JZ_TFNF         0x02 /* TX FIFO is not full */
        #define JZ_ACT          0x01 /* JZ_SLVACT | JZ_MSTACT */
#define JZ_SMBABTSRC    0x80 /* SMB Transmit Abort Status Register */
#define JZ_SMBDMACR     0x88 /* DMA Control Register */
#define JZ_SMBDMATDL    0x8c /* DMA Transmit Data Level */
#define JZ_SMBDMARDL    0x90 /* DMA Receive Data Level */
#define JZ_SMBSDASU     0x94 /* SMB SDA Setup Register */
#define JZ_SMBACKGC     0x98 /* SMB ACK General Call Register */
#define JZ_SMBENBST     0x9C /* SMB Enable Status Register */
#define JZ_SMBSDAHD     0xD0 /* SMB SDA HolD time Register */
        #define JZ_HDENB        0x100   /* enable hold time */

/* SD/MMC hosts */
#define JZ_MSC0_BASE    0x13450000
#define JZ_MSC1_BASE    0x13460000
#define JZ_MSC2_BASE    0x13470000

#define JZ_MSC_CTRL     0x00
        #define JZ_SEND_CCSD            0x8000
        #define JZ_SEND_AS_CCSD         0x4000
        #define JZ_EXIT_MULTIPLE        0x0080
        #define JZ_EXIT_TRANSFER        0x0040
        #define JZ_START_READWAIT       0x0020
        #define JZ_STOP_READWAIT        0x0010
        #define JZ_RESET                0x0008
        #define JZ_START_OP             0x0004
        #define JZ_CLOCK_CTRL_M         0x0003
        #define JZ_CLOCK_START          0x0002
        #define JZ_CLOCK_STOP           0x0001
#define JZ_MSC_STAT     0x04
        #define JZ_AUTO_CMD12_DONE      0x80000000
        #define JZ_AUTO_CMD23_DONE      0x40000000
        #define JZ_SVS                  0x20000000
        #define JZ_PIN_LEVEL_M          0x1f000000
        #define JZ_BCE                  0x00100000 /* boot CRC error */
        #define JZ_BDE                  0x00080000 /* boot data end */
        #define JZ_BAE                  0x00040000 /* boot acknowledge error */
        #define JZ_BAR                  0x00020000 /* boot ack. received */
        #define JZ_DMAEND               0x00010000
        #define JZ_IS_RESETTING         0x00008000
        #define JZ_SDIO_INT_ACTIVE      0x00004000
        #define JZ_PRG_DONE             0x00002000
        #define JZ_DATA_TRAN_DONE       0x00001000
        #define JZ_END_CMD_RES          0x00000800
        #define JZ_DATA_FIFO_AFULL      0x00000400
        #define JZ_IS_READWAIT          0x00000200
        #define JZ_CLK_EN               0x00000100
        #define JZ_DATA_FIFO_FULL       0x00000080
        #define JZ_DATA_FIFO_EMPTY      0x00000040
        #define JZ_CRC_RES_ERR          0x00000020
        #define JZ_CRC_READ_ERR         0x00000010
        #define JZ_CRC_WRITE_ERR_M      0x0000000c
        #define JZ_CRC_WRITE_OK         0x00000000
        #define JZ_CRC_CARD_ERR         0x00000004
        #define JZ_CRC_NO_STATUS        0x00000008
        #define JZ_TIME_OUT_RES         0x00000002
        #define JZ_TIME_OUT_READ        0x00000001
#define JZ_MSC_CLKRT    0x08
        #define JZ_DEV_CLK      0x0
        #define JZ_DEV_CLK_2    0x1     /* DEV_CLK / 2 */
        #define JZ_DEV_CLK_4    0x2     /* DEV_CLK / 4 */
        #define JZ_DEV_CLK_8    0x3     /* DEV_CLK / 8 */
        #define JZ_DEV_CLK_16   0x4     /* DEV_CLK / 16 */
        #define JZ_DEV_CLK_32   0x5     /* DEV_CLK / 32 */
        #define JZ_DEV_CLK_64   0x6     /* DEV_CLK / 64 */
        #define JZ_DEV_CLK_128  0x7     /* DEV_CLK / 128 */
#define JZ_MSC_CMDAT    0x0c
        #define JZ_CCS_EXPECTED 0x80000000
        #define JZ_READ_CEATA   0x40000000
        #define JZ_DIS_BOOT     0x08000000
        #define JZ_ENA_BOOT     0x04000000
        #define JZ_EXP_BOOT_ACK 0x02000000
        #define JZ_BOOT_MODE    0x01000000
        #define JZ_AUTO_CMD23   0x00040000
        #define JZ_SDIO_PRDT    0x00020000
        #define JZ_AUTO_CMD12   0x00010000
        #define JZ_RTRG_M       0x0000c000 /* receive FIFO trigger */
        #define JZ_RTRG_16      0x00000000 /* >= 16 */
        #define JZ_RTRG_32      0x00004000 /* >= 32 */
        #define JZ_RTRG_64      0x00008000 /* >= 64 */
        #define JZ_RTRG_96      0x0000c000 /* >= 96 */
        #define JZ_TTRG_M       0x00003000 /* transmit FIFO trigger */
        #define JZ_TTRG_16      0x00000000 /* >= 16 */
        #define JZ_TTRG_32      0x00001000 /* >= 32 */
        #define JZ_TTRG_64      0x00002000 /* >= 64 */
        #define JZ_TTRG_96      0x00003000 /* >= 96 */
        #define JZ_IO_ABORT     0x00000800
        #define JZ_BUS_WIDTH_M  0x00000600
        #define JZ_BUS_1BIT     0x00000000
        #define JZ_BUS_4BIT     0x00000200
        #define JZ_BUS_8BIT     0x00000300
        #define JZ_INIT         0x00000080 /* send 80 clk init before cmd */
        #define JZ_BUSY         0x00000040
        #define JZ_STREAM       0x00000020
        #define JZ_WRITE        0x00000010 /* read otherwise */
        #define JZ_DATA_EN      0x00000008
        #define JZ_RESPONSE_M   0x00000007 /* response format */
        #define JZ_RES_NONE     0x00000000
        #define JZ_RES_R1       0x00000001 /* R1 and R1b */
        #define JZ_RES_R2       0x00000002
        #define JZ_RES_R3       0x00000003
        #define JZ_RES_R4       0x00000004
        #define JZ_RES_R5       0x00000005
        #define JZ_RES_R6       0x00000006
        #define JZ_RES_R7       0x00000007
#define JZ_MSC_RESTO    0x10 /* 16bit response timeout in MSC_CLK */
#define JZ_MSC_RDTO RW  0x14 /* 32bit read timeout in MSC_CLK */
#define JZ_MSC_BLKLEN   0x18 /* 16bit block length */
#define JZ_MSC_NOB      0x1c /* 16bit block counter */
#define JZ_MSC_SNOB     0x20 /* 16bit successful block counter */
#define JZ_MSC_IMASK    0x24 /* interrupt mask */
        #define JZ_INT_AUTO_CMD23_DONE  0x40000000
        #define JZ_INT_SVS              0x20000000
        #define JZ_INT_PIN_LEVEL_M      0x1f000000
        #define JZ_INT_BCE              0x00100000
        #define JZ_INT_BDE              0x00080000
        #define JZ_INT_BAE              0x00040000
        #define JZ_INT_BAR              0x00020000
        #define JZ_INT_DMAEND           0x00010000
        #define JZ_INT_AUTO_CMD12_DONE  0x00008000
        #define JZ_INT_DATA_FIFO_FULL   0x00004000
        #define JZ_INT_DATA_FIFO_EMPTY  0x00002000
        #define JZ_INT_CRC_RES_ERR      0x00001000
        #define JZ_INT_CRC_READ_ERR     0x00000800
        #define JZ_INT_CRC_WRITE_ERR    0x00000400
        #define JZ_INT_TIMEOUT_RES      0x00000200
        #define JZ_INT_TIMEOUT_READ     0x00000100
        #define JZ_INT_SDIO             0x00000080
        #define JZ_INT_TXFIFO_WR_REQ    0x00000040
        #define JZ_INT_RXFIFO_RD_REQ    0x00000020
        #define JZ_INT_EMD_CMD_RES      0x00000004
        #define JZ_INT_PRG_DONE         0x00000002
        #define JZ_INT_DATA_TRAN_DONE   0x00000001
#define JZ_MSC_IFLG     0x28 /* interrupt flags */
#define JZ_MSC_CMD      0x2c /* 6bit CMD index */
#define JZ_MSC_ARG      0x30 /* 32bit argument */
#define JZ_MSC_RES      0x34 /* 8x16bit response data FIFO */
#define JZ_MSC_RXFIFO   0x38
#define JZ_MSC_TXFIFO   0x3c
#define JZ_MSC_LPM      0x40
        #define JZ_DRV_SEL_M    0xc0000000
        #define JZ_FALLING_EDGE 0x00000000
        #define JZ_RISING_1NS   0x40000000 /* 1ns delay */
        #define JZ_RISING_4     0x80000000 /* 1/4 MSC_CLK delay */
        #define JZ_SMP_SEL      0x20000000 /* 1 - rising edge */
        #define JZ_LPM          0x00000001 /* low power mode */
#define JZ_MSC_DMAC     0x44
        #define JZ_MODE_SEL     0x80 /* 1 - specify transfer length */
        #define JZ_AOFST_M      0x60 /* address offset in bytes */
        #define JZ_ALIGNEN      0x10 /* allow non-32bit-aligned transfers */
        #define JZ_INCR_M       0x0c /* burst type */
        #define JZ_INCR_16      0x00
        #define JZ_INCR_32      0x04
        #define JZ_INCR_64      0x08
        #define JZ_DMASEL       0x02 /* 1 - SoC DMAC, 0 - MSC built-in */
        #define JZ_DMAEN        0x01 /* enable DMA */
#define JZ_MSC_DMANDA   0x48 /* next descriptor paddr */
#define JZ_MSC_DMADA    0x4c /* current descriptor */
#define JZ_MSC_DMALEN   0x50 /* transfer tength */
#define JZ_MSC_DMACMD   0x54
        #define JZ_DMA_IDI_M    0xff000000
        #define JZ_DMA_ID_M     0x00ff0000
        #define JZ_DMA_AOFST_M  0x00000600
        #define JZ_DMA_ALIGN    0x00000100
        #define JZ_DMA_ENDI     0x00000002
        #define JZ_DMA_LINK     0x00000001
#define JZ_MSC_CTRL2    0x58
        #define JZ_PIP          0x1f000000      /* 1 - intr trigger on high */
        #define JZ_RST_EN       0x00800000
        #define JZ_STPRM        0x00000010
        #define JZ_SVC          0x00000008
        #define JZ_SMS_M        0x00000007
        #define JZ_SMS_DEF      0x00000000      /* default speed */
        #define JZ_SMS_HIGH     0x00000001      /* high speed */
        #define JZ_SMS_SDR12    0x00000002
        #define JZ_SMS_SDR25    0x00000003
        #define JZ_SMS_SDR50    0x00000004
#define JZ_MSC_RTCNT    0x5c /* RT FIFO count */

/* EFUSE Slave Interface */
#define JZ_EFUSE        0x134100D0
#define JZ_EFUCTRL      0x00
        #define JZ_EFUSE_BANK   0x40000000      /* select upper 4KBit */
        #define JZ_EFUSE_ADDR_M 0x3fe00000      /* in bytes */
        #define JZ_EFUSE_ADDR_SHIFT     21
        #define JZ_EFUSE_SIZE_M 0x001f0000      /* in bytes */
        #define JZ_EFUSE_SIZE_SHIFT     16
        #define JZ_EFUSE_PROG   0x00008000      /* enable programming */
        #define JZ_EFUSE_WRITE  0x00000002      /* write enable */
        #define JZ_EFUSE_READ   0x00000001      /* read enable */
#define JZ_EFUCFG       0x04
        #define JZ_EFUSE_INT_E          0x80000000      /* which IRQ? */
        #define JZ_EFUSE_RD_ADJ_M       0x00f00000
        #define JZ_EFUSE_RD_STROBE      0x000f0000
        #define JZ_EFUSE_WR_ADJUST      0x0000f000
        #define JZ_EFUSE_WR_STROBE      0x00000fff
#define JZ_EFUSTATE     0x08
        #define JZ_EFUSE_GLOBAL_P       0x00008000      /* wr protect bits */
        #define JZ_EFUSE_CHIPID_P       0x00004000
        #define JZ_EFUSE_CUSTID_P       0x00002000
        #define JZ_EFUSE_SECWR_EN       0x00001000
        #define JZ_EFUSE_PC_P           0x00000800
        #define JZ_EFUSE_HDMIKEY_P      0x00000400
        #define JZ_EFUSE_SECKEY_P       0x00000200
        #define JZ_EFUSE_SECBOOT_EN     0x00000100
        #define JZ_EFUSE_HDMI_BUSY      0x00000004
        #define JZ_EFUSE_WR_DONE        0x00000002
        #define JZ_EFUSE_RD_DONE        0x00000001
#define JZ_EFUDATA0     0x0C
#define JZ_EFUDATA1     0x10
#define JZ_EFUDATA2     0x14
#define JZ_EFUDATA3     0x18
#define JZ_EFUDATA4     0x1C
#define JZ_EFUDATA5     0x20
#define JZ_EFUDATA6     0x24
#define JZ_EFUDATA7     0x28

#endif /* INGENIC_REGS_H */