xref: /openbmc/u-boot/include/ns87308.h (revision ea0364f1)
1 /*
2  * (C) Copyright 2000
3  * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23 
24 #ifndef _NS87308_H_
25 #define _NS87308_H_
26 
27 #include <asm/pci_io.h>
28 
29 /* Note: I couldn't find a full data sheet for the ns87308, but the ns87307 seems to be pretty
30    functionally- (and pin-) equivalent to the 87308, but the 308 has better ir support. */
31 
32 void initialise_ns87308(void);
33 
34 /*
35  * The following struct represents the GPIO registers on the NS87308/NS97307
36  */
37 struct GPIO
38 {
39   unsigned char dta1;  /* 0 data port 1 */
40   unsigned char dir1;  /* 1 direction port 1 */
41   unsigned char out1;  /* 2 output type port 1 */
42   unsigned char puc1;  /* 3 pull-up control port 1 */
43   unsigned char dta2;  /* 4 data port 2 */
44   unsigned char dir2;  /* 5 direction port 2 */
45   unsigned char out2;  /* 6 output type port 2 */
46   unsigned char puc2;  /* 7 pull-up control port 2  */
47 };
48 
49 /*
50  * The following represents the power management registers on the NS87308/NS97307
51  */
52 #define PWM_FER1 0  /* 0 function enable reg. 1 */
53 #define PWM_FER2 1  /* 1 function enable reg. 2 */
54 #define PWM_PMC1 2  /* 2 power mgmt. control 1 */
55 #define PWM_PMC2 3  /* 3 power mgmt. control 2 */
56 #define PWM_PMC3 4  /* 4 power mgmt. control 3 */
57 #define PWM_WDTO 5  /* 5 watchdog time-out */
58 #define PWM_WDCF 6  /* 6 watchdog config. */
59 #define PWM_WDST 7  /* 7 watchdog status  */
60 
61 /*PNP config registers:
62  * these depend on the stated of BADDR1 and BADDR0 on startup
63  * so there's three versions here with the last two digits indicating
64  * for which configuration their valid
65  * the 1st of the two digits indicates the state of BADDR1
66  * the 2st of the two digits indicates the state of BADDR0
67  */
68 
69 
70 #define IO_INDEX_OFFSET_0x 0x0279  /* full PnP isa Mode */
71 #define IO_INDEX_OFFSET_10 0x015C  /* PnP motherboard mode */
72 #define IO_INDEX_OFFSET_11 0x002E  /* PnP motherboard mode */
73 #define IO_DATA_OFFSET_0x  0x0A79  /* full PnP isa Mode */
74 #define IO_DATA_OFFSET_10  0x015D  /* PnP motherboard mode */
75 #define IO_DATA_OFFSET_11  0x002F  /* PnP motherboard mode */
76 
77 #if defined(CONFIG_SYS_NS87308_BADDR_0x)
78 #define IO_INDEX (CONFIG_SYS_ISA_IO + IO_INDEX_OFFSET_0x)
79 #define IO_DATA  (CONFIG_SYS_ISA_IO + IO_DATA_OFFSET_0x)
80 #elif defined(CONFIG_SYS_NS87308_BADDR_10)
81 #define IO_INDEX (CONFIG_SYS_ISA_IO + IO_INDEX_OFFSET_10)
82 #define IO_DATA  (CONFIG_SYS_ISA_IO + IO_DATA_OFFSET_10)
83 #elif defined(CONFIG_SYS_NS87308_BADDR_11)
84 #define IO_INDEX (CONFIG_SYS_ISA_IO + IO_INDEX_OFFSET_11)
85 #define IO_DATA  (CONFIG_SYS_ISA_IO + IO_DATA_OFFSET_11)
86 #endif
87 
88 /* PnP register definitions */
89 
90 #define SET_RD_DATA_PORT    0x00
91 #define SERIAL_ISOLATION    0x01
92 #define CONFIG_CONTROL      0x02
93 #define WAKE_CSN            0x03
94 #define RES_DATA            0x04
95 #define STATUS              0x05
96 #define SET_CSN             0x06
97 #define LOGICAL_DEVICE      0x07
98 
99 /*vendor defined values */
100 #define SID_REG             0x20
101 #define SUPOERIO_CONF1      0x21
102 #define SUPOERIO_CONF2      0x22
103 #define PGCS_INDEX          0x23
104 #define PGCS_DATA           0x24
105 
106 /* values above 30 are different for each logical device
107    but I can't be arsed to enter them all. the ones here
108    are pretty consistent between all logical devices
109    feel free to correct the situation if you want.. ;)
110    */
111 #define ACTIVATE            0x30
112 #define ACTIVATE_OFF        0x00
113 #define ACTIVATE_ON         0x01
114 
115 #define BASE_ADDR_HIGH      0x60
116 #define BASE_ADDR_LOW       0x61
117 #define LUN_CONFIG_REG		0xF0
118 #define DBASE_HIGH			0x60	/* SIO KBC data base address, 15:8 */
119 #define DBASE_LOW			0x61	/* SIO KBC data base address,  7:0 */
120 #define CBASE_HIGH			0x62	/* SIO KBC command base addr, 15:8 */
121 #define CBASE_LOW			0x63	/* SIO KBC command base addr,  7:0 */
122 
123 /* the logical devices*/
124 #define LDEV_KBC1           0x00	/* 2 devices for keyboard and mouse controller*/
125 #define LDEV_KBC2           0x01
126 #define LDEV_MOUSE          0x01
127 #define LDEV_RTC_APC        0x02	/*Real Time Clock and Advanced Power Control*/
128 #define LDEV_FDC            0x03	/*floppy disk controller*/
129 #define LDEV_PARP           0x04	/*Parallel port*/
130 #define LDEV_UART2          0x05
131 #define LDEV_UART1          0x06
132 #define LDEV_GPIO           0x07    /*General Purpose IO and chip select output signals*/
133 #define LDEV_POWRMAN        0x08    /*Power Managment*/
134 
135 #define CONFIG_SYS_NS87308_KBC1	(1 << LDEV_KBC1)
136 #define CONFIG_SYS_NS87308_KBC2	(1 << LDEV_KBC2)
137 #define CONFIG_SYS_NS87308_MOUSE	(1 << LDEV_MOUSE)
138 #define CONFIG_SYS_NS87308_RTC_APC	(1 << LDEV_RTC_APC)
139 #define CONFIG_SYS_NS87308_FDC		(1 << LDEV_FDC)
140 #define CONFIG_SYS_NS87308_PARP	(1 << LDEV_PARP)
141 #define CONFIG_SYS_NS87308_UART2	(1 << LDEV_UART2)
142 #define CONFIG_SYS_NS87308_UART1	(1 << LDEV_UART1)
143 #define CONFIG_SYS_NS87308_GPIO	(1 << LDEV_GPIO)
144 #define CONFIG_SYS_NS87308_POWRMAN	(1 << LDEV_POWRMAN)
145 
146 /*some functions and macro's for doing configuration */
147 
148 static inline void read_pnp_config(unsigned char index, unsigned char *data)
149 {
150     pci_writeb(index,IO_INDEX);
151     pci_readb(IO_DATA, *data);
152 }
153 
154 static inline void write_pnp_config(unsigned char index, unsigned char data)
155 {
156     pci_writeb(index,IO_INDEX);
157     pci_writeb(data, IO_DATA);
158 }
159 
160 static inline void pnp_set_device(unsigned char dev)
161 {
162     write_pnp_config(LOGICAL_DEVICE, dev);
163 }
164 
165 static inline void write_pm_reg(unsigned short base, unsigned char index, unsigned char data)
166 {
167     pci_writeb(index, CONFIG_SYS_ISA_IO + base);
168     eieio();
169     pci_writeb(data, CONFIG_SYS_ISA_IO + base + 1);
170 }
171 
172 /*void write_pnp_config(unsigned char index, unsigned char data);
173 void pnp_set_device(unsigned char dev);
174 */
175 
176 #define PNP_SET_DEVICE_BASE(dev,base) \
177    pnp_set_device(dev); \
178    write_pnp_config(ACTIVATE, ACTIVATE_OFF); \
179    write_pnp_config(BASE_ADDR_HIGH, ((base) >> 8) & 0xff ); \
180    write_pnp_config(BASE_ADDR_LOW, (base) &0xff); \
181    write_pnp_config(ACTIVATE, ACTIVATE_ON);
182 
183 #define PNP_ACTIVATE_DEVICE(dev) \
184    pnp_set_device(dev); \
185    write_pnp_config(ACTIVATE, ACTIVATE_ON);
186 
187 #define PNP_DEACTIVATE_DEVICE(dev) \
188    pnp_set_device(dev); \
189    write_pnp_config(ACTIVATE, ACTIVATE_OFF);
190 
191 
192 static inline void write_pgcs_config(unsigned char index, unsigned char data)
193 {
194     write_pnp_config(PGCS_INDEX, index);
195     write_pnp_config(PGCS_DATA, data);
196 }
197 
198 /* these macrose configure the 3 CS lines
199    on the sandpoint board these controll NVRAM
200    CS0 is connected to NVRAMCS
201    CS1 is connected to NVRAMAS0
202    CS2 is connected to NVRAMAS1
203    */
204 #define PGCS_CS_ASSERT_ON_WRITE 0x10
205 #define PGCS_CS_ASSERT_ON_READ  0x20
206 
207 #define PNP_PGCS_CSLINE_BASE(cs, base) \
208   write_pgcs_config((cs) << 2, ((base) >> 8) & 0xff ); \
209   write_pgcs_config(((cs) << 2) + 1, (base) & 0xff );
210 
211 #define PNP_PGCS_CSLINE_CONF(cs, conf) \
212   write_pgcs_config(((cs) << 2) + 2, (conf) );
213 
214 
215 /* The following sections are for 87308 extensions to the standard compoents it emulates */
216 
217 /* extensions to 16550*/
218 
219 #define MCR_MDSL_MSK    0xe0 /*mode select mask*/
220 #define MCR_MDSL_UART   0x00 /*uart, default*/
221 #define MCR_MDSL_SHRPIR 0x02 /*Sharp IR*/
222 #define MCR_MDSL_SIR    0x03 /*SIR*/
223 #define MCR_MDSL_CIR    0x06 /*Consumer IR*/
224 
225 #define FCR_TXFTH0      0x10    /* these bits control threshod of data level in fifo */
226 #define FCR_TXFTH1      0x20    /* for interrupt trigger */
227 
228 /*
229  * Default NS87308 configuration
230  */
231 #ifndef CONFIG_SYS_NS87308_KBC1_BASE
232 #define CONFIG_SYS_NS87308_KBC1_BASE	0x0060
233 #endif
234 #ifndef CONFIG_SYS_NS87308_RTC_BASE
235 #define CONFIG_SYS_NS87308_RTC_BASE	0x0070
236 #endif
237 #ifndef CONFIG_SYS_NS87308_FDC_BASE
238 #define CONFIG_SYS_NS87308_FDC_BASE	0x03F0
239 #endif
240 #ifndef CONFIG_SYS_NS87308_LPT_BASE
241 #define CONFIG_SYS_NS87308_LPT_BASE	0x0278
242 #endif
243 #ifndef CONFIG_SYS_NS87308_UART1_BASE
244 #define CONFIG_SYS_NS87308_UART1_BASE	0x03F8
245 #endif
246 #ifndef CONFIG_SYS_NS87308_UART2_BASE
247 #define CONFIG_SYS_NS87308_UART2_BASE	0x02F8
248 #endif
249 
250 #endif /*_NS87308_H_*/
251