--- /dev/null
+/*
+ * Hardware-specific External Interface I/O core definitions
+ * for the BCM47xx family of SiliconBackplane-based chips.
+ *
+ * The External Interface core supports a total of three external chip selects
+ * supporting external interfaces. One of the external chip selects is
+ * used for Flash, one is used for PCMCIA, and the other may be
+ * programmed to support either a synchronous interface or an
+ * asynchronous interface. The asynchronous interface can be used to
+ * support external devices such as UARTs and the BCM2019 Bluetooth
+ * baseband processor.
+ * The external interface core also contains 2 on-chip 16550 UARTs, clock
+ * frequency control, a watchdog interrupt timer, and a GPIO interface.
+ *
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ *
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id: sbextif.h,v 1.1.1.8 2006/02/27 03:43:16 honor Exp $
+ */
+
+#ifndef _SBEXTIF_H
+#define _SBEXTIF_H
+
+/* external interface address space */
+#define EXTIF_PCMCIA_MEMBASE(x) (x)
+#define EXTIF_PCMCIA_IOBASE(x) ((x) + 0x100000)
+#define EXTIF_PCMCIA_CFGBASE(x) ((x) + 0x200000)
+#define EXTIF_CFGIF_BASE(x) ((x) + 0x800000)
+#define EXTIF_FLASH_BASE(x) ((x) + 0xc00000)
+
+/* cpp contortions to concatenate w/arg prescan */
+#ifndef PAD
+#define _PADLINE(line) pad ## line
+#define _XSTR(line) _PADLINE(line)
+#define PAD _XSTR(__LINE__)
+#endif /* PAD */
+
+/*
+ * The multiple instances of output and output enable registers
+ * are present to allow driver software for multiple cores to control
+ * gpio outputs without needing to share a single register pair.
+ */
+struct gpiouser {
+ uint32 out;
+ uint32 outen;
+};
+#define NGPIOUSER 5
+
+typedef volatile struct {
+ uint32 corecontrol;
+ uint32 extstatus;
+ uint32 PAD[2];
+
+ /* pcmcia control registers */
+ uint32 pcmcia_config;
+ uint32 pcmcia_memwait;
+ uint32 pcmcia_attrwait;
+ uint32 pcmcia_iowait;
+
+ /* programmable interface control registers */
+ uint32 prog_config;
+ uint32 prog_waitcount;
+
+ /* flash control registers */
+ uint32 flash_config;
+ uint32 flash_waitcount;
+ uint32 PAD[4];
+
+ uint32 watchdog;
+
+ /* clock control */
+ uint32 clockcontrol_n;
+ uint32 clockcontrol_sb;
+ uint32 clockcontrol_pci;
+ uint32 clockcontrol_mii;
+ uint32 PAD[3];
+
+ /* gpio */
+ uint32 gpioin;
+ struct gpiouser gpio[NGPIOUSER];
+ uint32 PAD;
+ uint32 ejtagouten;
+ uint32 gpiointpolarity;
+ uint32 gpiointmask;
+ uint32 PAD[153];
+
+ uint8 uartdata;
+ uint8 PAD[3];
+ uint8 uartimer;
+ uint8 PAD[3];
+ uint8 uartfcr;
+ uint8 PAD[3];
+ uint8 uartlcr;
+ uint8 PAD[3];
+ uint8 uartmcr;
+ uint8 PAD[3];
+ uint8 uartlsr;
+ uint8 PAD[3];
+ uint8 uartmsr;
+ uint8 PAD[3];
+ uint8 uartscratch;
+ uint8 PAD[3];
+} extifregs_t;
+
+/* corecontrol */
+#define CC_UE (1 << 0) /* uart enable */
+
+/* extstatus */
+#define ES_EM (1 << 0) /* endian mode (ro) */
+#define ES_EI (1 << 1) /* external interrupt pin (ro) */
+#define ES_GI (1 << 2) /* gpio interrupt pin (ro) */
+
+/* gpio bit mask */
+#define GPIO_BIT0 (1 << 0)
+#define GPIO_BIT1 (1 << 1)
+#define GPIO_BIT2 (1 << 2)
+#define GPIO_BIT3 (1 << 3)
+#define GPIO_BIT4 (1 << 4)
+#define GPIO_BIT5 (1 << 5)
+#define GPIO_BIT6 (1 << 6)
+#define GPIO_BIT7 (1 << 7)
+
+
+/* pcmcia/prog/flash_config */
+#define CF_EN (1 << 0) /* enable */
+#define CF_EM_MASK 0xe /* mode */
+#define CF_EM_SHIFT 1
+#define CF_EM_FLASH 0x0 /* flash/asynchronous mode */
+#define CF_EM_SYNC 0x2 /* synchronous mode */
+#define CF_EM_PCMCIA 0x4 /* pcmcia mode */
+#define CF_DS (1 << 4) /* destsize: 0=8bit, 1=16bit */
+#define CF_BS (1 << 5) /* byteswap */
+#define CF_CD_MASK 0xc0 /* clock divider */
+#define CF_CD_SHIFT 6
+#define CF_CD_DIV2 0x0 /* backplane/2 */
+#define CF_CD_DIV3 0x40 /* backplane/3 */
+#define CF_CD_DIV4 0x80 /* backplane/4 */
+#define CF_CE (1 << 8) /* clock enable */
+#define CF_SB (1 << 9) /* size/bytestrobe (synch only) */
+
+/* pcmcia_memwait */
+#define PM_W0_MASK 0x3f /* waitcount0 */
+#define PM_W1_MASK 0x1f00 /* waitcount1 */
+#define PM_W1_SHIFT 8
+#define PM_W2_MASK 0x1f0000 /* waitcount2 */
+#define PM_W2_SHIFT 16
+#define PM_W3_MASK 0x1f000000 /* waitcount3 */
+#define PM_W3_SHIFT 24
+
+/* pcmcia_attrwait */
+#define PA_W0_MASK 0x3f /* waitcount0 */
+#define PA_W1_MASK 0x1f00 /* waitcount1 */
+#define PA_W1_SHIFT 8
+#define PA_W2_MASK 0x1f0000 /* waitcount2 */
+#define PA_W2_SHIFT 16
+#define PA_W3_MASK 0x1f000000 /* waitcount3 */
+#define PA_W3_SHIFT 24
+
+/* pcmcia_iowait */
+#define PI_W0_MASK 0x3f /* waitcount0 */
+#define PI_W1_MASK 0x1f00 /* waitcount1 */
+#define PI_W1_SHIFT 8
+#define PI_W2_MASK 0x1f0000 /* waitcount2 */
+#define PI_W2_SHIFT 16
+#define PI_W3_MASK 0x1f000000 /* waitcount3 */
+#define PI_W3_SHIFT 24
+
+/* prog_waitcount */
+#define PW_W0_MASK 0x0000001f /* waitcount0 */
+#define PW_W1_MASK 0x00001f00 /* waitcount1 */
+#define PW_W1_SHIFT 8
+#define PW_W2_MASK 0x001f0000 /* waitcount2 */
+#define PW_W2_SHIFT 16
+#define PW_W3_MASK 0x1f000000 /* waitcount3 */
+#define PW_W3_SHIFT 24
+
+#define PW_W0 0x0000000c
+#define PW_W1 0x00000a00
+#define PW_W2 0x00020000
+#define PW_W3 0x01000000
+
+/* flash_waitcount */
+#define FW_W0_MASK 0x1f /* waitcount0 */
+#define FW_W1_MASK 0x1f00 /* waitcount1 */
+#define FW_W1_SHIFT 8
+#define FW_W2_MASK 0x1f0000 /* waitcount2 */
+#define FW_W2_SHIFT 16
+#define FW_W3_MASK 0x1f000000 /* waitcount3 */
+#define FW_W3_SHIFT 24
+
+/* watchdog */
+#define WATCHDOG_CLOCK 48000000 /* Hz */
+
+/* clockcontrol_n */
+#define CN_N1_MASK 0x3f /* n1 control */
+#define CN_N2_MASK 0x3f00 /* n2 control */
+#define CN_N2_SHIFT 8
+
+/* clockcontrol_sb/pci/mii */
+#define CC_M1_MASK 0x3f /* m1 control */
+#define CC_M2_MASK 0x3f00 /* m2 control */
+#define CC_M2_SHIFT 8
+#define CC_M3_MASK 0x3f0000 /* m3 control */
+#define CC_M3_SHIFT 16
+#define CC_MC_MASK 0x1f000000 /* mux control */
+#define CC_MC_SHIFT 24
+
+/* Clock control default values */
+#define CC_DEF_N 0x0009 /* Default values for bcm4710 */
+#define CC_DEF_100 0x04020011
+#define CC_DEF_33 0x11030011
+#define CC_DEF_25 0x11050011
+
+/* Clock control values for 125Mhz */
+#define CC_125_N 0x0802
+#define CC_125_M 0x04020009
+#define CC_125_M25 0x11090009
+#define CC_125_M33 0x11090005
+
+/* Clock control magic field values */
+#define CC_F6_2 0x02 /* A factor of 2 in */
+#define CC_F6_3 0x03 /* 6-bit fields like */
+#define CC_F6_4 0x05 /* N1, M1 or M3 */
+#define CC_F6_5 0x09
+#define CC_F6_6 0x11
+#define CC_F6_7 0x21
+
+#define CC_F5_BIAS 5 /* 5-bit fields get this added */
+
+#define CC_MC_BYPASS 0x08
+#define CC_MC_M1 0x04
+#define CC_MC_M1M2 0x02
+#define CC_MC_M1M2M3 0x01
+#define CC_MC_M1M3 0x11
+
+#define CC_CLOCK_BASE 24000000 /* Half the clock freq. in the 4710 */
+
+#endif /* _SBEXTIF_H */
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