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freebsd-skq/sys/mips/atheros/ar531x/ar5315reg.h
Adrian Chadd 7c12b677f5 [ar531x] add initial port for the AR231x/531x series of SoCs. 
These are older MIPS4kc parts from Atheros.  They typically ran at
sub-200MHz and have 11bg, 11a, or 11abg wifi MAC/PHYs integrated.

This port is the initial non-wifi pieces required to bring up the
chip.  I'll commit the redboot and other pieces later, and then
hopefully(!) wifi support will follow.

Submitted by:   Mori Hiroki <yamori813@yahoo.co.jp>
Differential Revision:  https://reviews.freebsd.org/D7237
2016-10-04 16:27:36 +00:00

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/* $Id: ar5315reg.h,v 1.3 2011/07/07 05:06:44 matt Exp $ */
/*
* Copyright (c) 2006 Urbana-Champaign Independent Media Center.
* Copyright (c) 2006 Garrett D'Amore.
* All rights reserved.
*
* This code was written by Garrett D'Amore for the Champaign-Urbana
* Community Wireless Network Project.
*
* 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.
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgements:
* This product includes software developed by the Urbana-Champaign
* Independent Media Center.
* This product includes software developed by Garrett D'Amore.
* 4. Urbana-Champaign Independent Media Center's name and Garrett
* D'Amore's name may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE URBANA-CHAMPAIGN INDEPENDENT
* MEDIA CENTER AND GARRETT D'AMORE ``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 URBANA-CHAMPAIGN INDEPENDENT
* MEDIA CENTER OR GARRETT D'AMORE 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.
*
* $FreeBSD$
*/
#ifndef _MIPS_ATHEROS_AR5315REG_H_
#define _MIPS_ATHEROS_AR5315REG_H_
#define AR5315_MEM0_BASE 0x00000000 /* sdram */
#define AR5315_MEM1_BASE 0x08000000 /* spi flash */
#define AR5315_WLAN_BASE 0x10000000
#define AR5315_PCI_BASE 0x10100000
#define AR5315_SDRAMCTL_BASE 0x10300000
#define AR5315_LOCAL_BASE 0x10400000 /* local bus */
#define AR5315_ENET_BASE 0x10500000
#define AR5315_SYSREG_BASE 0x11000000
#define AR5315_UART_BASE 0x11100000
#define AR5315_SPI_BASE 0x11300000 /* spi flash */
#define AR5315_BOOTROM_BASE 0x1FC00000 /* boot rom */
#define AR5315_CONFIG_BASE 0x087D0000 /* flash start */
#define AR5315_CONFIG_END 0x087FF000 /* flash end */
#define AR5315_RADIO_END 0x1FFFF000 /* radio end */
#if 0
#define AR5315_PCIEXT_BASE 0x80000000 /* pci external */
#define AR5315_RAM2_BASE 0xc0000000
#define AR5315_RAM3_BASE 0xe0000000
#endif
/*
* SYSREG registers -- offset relative to AR531X_SYSREG_BASE
*/
#define AR5315_SYSREG_COLDRESET 0x0000
#define AR5315_SYSREG_RESETCTL 0x0004
#define AR5315_SYSREG_AHB_ARB_CTL 0x0008
#define AR5315_SYSREG_ENDIAN 0x000c
#define AR5315_SYSREG_NMI_CTL 0x0010
#define AR5315_SYSREG_SREV 0x0014
#define AR5315_SYSREG_IF_CTL 0x0018
#define AR5315_SYSREG_MISC_INTSTAT 0x0020
#define AR5315_SYSREG_MISC_INTMASK 0x0024
#define AR5315_SYSREG_GISR 0x0028
#define AR5315_SYSREG_TIMER 0x0030
#define AR5315_SYSREG_RELOAD 0x0034
#define AR5315_SYSREG_WDOG_TIMER 0x0038
#define AR5315_SYSREG_WDOG_CTL 0x003c
#define AR5315_SYSREG_PERFCNT0 0x0048
#define AR5315_SYSREG_PERFCNT1 0x004c
#define AR5315_SYSREG_AHB_ERR0 0x0050
#define AR5315_SYSREG_AHB_ERR1 0x0054
#define AR5315_SYSREG_AHB_ERR2 0x0058
#define AR5315_SYSREG_AHB_ERR3 0x005c
#define AR5315_SYSREG_AHB_ERR4 0x0060
#define AR5315_SYSREG_PLLC_CTL 0x0064
#define AR5315_SYSREG_PLLV_CTL 0x0068
#define AR5315_SYSREG_CPUCLK 0x006c
#define AR5315_SYSREG_AMBACLK 0x0070
#define AR5315_SYSREG_SYNCCLK 0x0074
#define AR5315_SYSREG_DSL_SLEEP_CTL 0x0080
#define AR5315_SYSREG_DSL_SLEEP_DUR 0x0084
#define AR5315_SYSREG_GPIO_DI 0x0088
#define AR5315_SYSREG_GPIO_DO 0x0090
#define AR5315_SYSREG_GPIO_CR 0x0098
#define AR5315_SYSREG_GPIO_INT 0x00a0
#define AR5315_GPIO_PINS 23
/* Cold resets (AR5315_SYSREG_COLDRESET) */
#define AR5315_COLD_AHB 0x00000001
#define AR5315_COLD_APB 0x00000002
#define AR5315_COLD_CPU 0x00000004
#define AR5315_COLD_CPU_WARM 0x00000008
/* Resets (AR5315_SYSREG_RESETCTL) */
#define AR5315_RESET_WARM_WLAN0_MAC 0x00000001
#define AR5315_RESET_WARM_WLAN0_BB 0x00000002
#define AR5315_RESET_MPEGTS 0x00000004 /* MPEG-TS */
#define AR5315_RESET_PCIDMA 0x00000008 /* PCI dma */
#define AR5315_RESET_MEMCTL 0x00000010
#define AR5315_RESET_LOCAL 0x00000020 /* local bus */
#define AR5315_RESET_I2C 0x00000040 /* i2c */
#define AR5315_RESET_SPI 0x00000080 /* SPI */
#define AR5315_RESET_UART 0x00000100
#define AR5315_RESET_IR 0x00000200 /* infrared */
#define AR5315_RESET_PHY0 0x00000400 /* enet phy */
#define AR5315_RESET_ENET0 0x00000800
/* Watchdog control (AR5315_SYSREG_WDOG_CTL) */
#define AR5315_WDOG_CTL_IGNORE 0x0000
#define AR5315_WDOG_CTL_NMI 0x0001
#define AR5315_WDOG_CTL_RESET 0x0002
/* AR5315 AHB arbitration control (AR5315_SYSREG_AHB_ARB_CTL) */
#define AR5315_ARB_CPU 0x00001
#define AR5315_ARB_WLAN 0x00002
#define AR5315_ARB_MPEGTS 0x00004
#define AR5315_ARB_LOCAL 0x00008
#define AR5315_ARB_PCI 0x00010
#define AR5315_ARB_ENET 0x00020
#define AR5315_ARB_RETRY 0x00100
/* AR5315 endianness control (AR5315_SYSREG_ENDIAN) */
#define AR5315_ENDIAN_AHB 0x00001
#define AR5315_ENDIAN_WLAN 0x00002
#define AR5315_ENDIAN_MPEGTS 0x00004
#define AR5315_ENDIAN_PCI 0x00008
#define AR5315_ENDIAN_MEMCTL 0x00010
#define AR5315_ENDIAN_LOCAL 0x00020
#define AR5315_ENDIAN_ENET 0x00040
#define AR5315_ENDIAN_MERGE 0x00200
#define AR5315_ENDIAN_CPU 0x00400
#define AR5315_ENDIAN_PCIAHB 0x00800
#define AR5315_ENDIAN_PCIAHB_BRIDGE 0x01000
#define AR5315_ENDIAN_SPI 0x08000
#define AR5315_ENDIAN_CPU_DRAM 0x10000
#define AR5315_ENDIAN_CPU_PCI 0x20000
#define AR5315_ENDIAN_CPU_MMR 0x40000
/* AR5315 AHB error bits */
#define AR5315_AHB_ERROR_DET 1 /* error detected */
#define AR5315_AHB_ERROR_OVR 2 /* AHB overflow */
#define AR5315_AHB_ERROR_WDT 4 /* wdt (not hresp) */
/* AR5315 clocks */
#define AR5315_PLLC_REF_DIV(reg) ((reg) & 0x3)
#define AR5315_PLLC_FB_DIV(reg) (((reg) & 0x7c) >> 2)
#define AR5315_PLLC_DIV_2(reg) (((reg) & 0x80) >> 7)
#define AR5315_PLLC_CLKC(reg) (((reg) & 0x1c000) >> 14)
#define AR5315_PLLC_CLKM(reg) (((reg) & 0x700000) >> 20)
#define AR5315_CLOCKCTL_SELECT(reg) ((reg) & 0x3)
#define AR5315_CLOCKCTL_DIV(reg) (((reg) & 0xc) >> 2)
/*
* SDRAMCTL registers -- offset relative to SDRAMCTL
*/
#define AR5315_SDRAMCTL_MEM_CFG 0x0000
#define AR5315_MEM_CFG_DATA_WIDTH __BITS(13,14)
#define AR5315_MEM_CFG_COL_WIDTH __BITS(9,12)
#define AR5315_MEM_CFG_ROW_WIDTH __BITS(5,8)
/* memory config 1 bits */
#define AR531X_MEM_CFG1_BANK0 __BITS(8,10)
#define AR531X_MEM_CFG1_BANK1 __BITS(12,14)
/*
* PCI configuration stuff. I don't pretend to fully understand these
* registers, they seem to be magic numbers in the Linux code.
*/
#define AR5315_PCI_MAC_RC 0x4000
#define AR5315_PCI_MAC_SCR 0x4004
#define AR5315_PCI_MAC_INTPEND 0x4008
#define AR5315_PCI_MAC_SFR 0x400c
#define AR5315_PCI_MAC_PCICFG 0x4010
#define AR5315_PCI_MAC_SREV 0x4020
#define PCI_MAC_RC_MAC 0x1
#define PCI_MAC_RC_BB 0x2
#define PCI_MAC_SCR_SLM_MASK 0x00030000
#define PCI_MAC_SCR_SLM_FWAKE 0x00000000
#define PCI_MAC_SCR_SLM_FSLEEP 0x00010000
#define PCI_MAC_SCR_SLM_NORMAL 0x00020000
#define PCI_MAC_PCICFG_SPWR_DN 0x00010000
/* IRQS */
#define AR5315_CPU_IRQ_MISC 0
#define AR5315_CPU_IRQ_WLAN 1
#define AR5315_CPU_IRQ_ENET 2
#define AR5315_MISC_IRQ_UART 0
#define AR5315_MISC_IRQ_I2C 1
#define AR5315_MISC_IRQ_SPI 2
#define AR5315_MISC_IRQ_AHBE 3
#define AR5315_MISC_IRQ_AHPE 4
#define AR5315_MISC_IRQ_TIMER 5
#define AR5315_MISC_IRQ_GPIO 6
#define AR5315_MISC_IRQ_WDOG 7
#define AR5315_MISC_IRQ_IR 8
#define AR5315_APB_BASE AR5315_SYSREG_BASE
#define AR5315_APB_SIZE 0x06000000
#define ATH_READ_REG(reg) \
*((volatile uint32_t *)MIPS_PHYS_TO_KSEG1((reg)))
#define ATH_WRITE_REG(reg, val) \
*((volatile uint32_t *)MIPS_PHYS_TO_KSEG1((reg))) = (val)
/* Helpers from NetBSD cdefs.h */
/* __BIT(n): nth bit, where __BIT(0) == 0x1. */
#define __BIT(__n) \
(((__n) >= NBBY * sizeof(uintmax_t)) ? 0 : ((uintmax_t)1 << (__n)))
/* __BITS(m, n): bits m through n, m < n. */
#define __BITS(__m, __n) \
((__BIT(MAX((__m), (__n)) + 1) - 1) ^ (__BIT(MIN((__m), (__n))) - 1))
/* find least significant bit that is set */
#define __LOWEST_SET_BIT(__mask) ((((__mask) - 1) & (__mask)) ^ (__mask))
#define __SHIFTOUT(__x, __mask) (((__x) & (__mask)) / __LOWEST_SET_BIT(__mask))
#define __SHIFTOUT_MASK(__mask) __SHIFTOUT((__mask), (__mask))
#endif /* _MIPS_ATHEROS_AR531XREG_H_ */
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