2 * ti113x.h 1.16 1999/10/25 20:03:34
4 * The contents of this file are subject to the Mozilla Public License
5 * Version 1.1 (the "License"); you may not use this file except in
6 * compliance with the License. You may obtain a copy of the License
7 * at http://www.mozilla.org/MPL/
9 * Software distributed under the License is distributed on an "AS IS"
10 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
11 * the License for the specific language governing rights and
12 * limitations under the License.
14 * The initial developer of the original code is David A. Hinds
15 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
16 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
18 * Alternatively, the contents of this file may be used under the
19 * terms of the GNU General Public License version 2 (the "GPL"), in which
20 * case the provisions of the GPL are applicable instead of the
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22 * only under the terms of the GPL and not to allow others to use
23 * your version of this file under the MPL, indicate your decision by
24 * deleting the provisions above and replace them with the notice and
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26 * provisions above, a recipient may use your version of this file
27 * under either the MPL or the GPL.
30 #ifndef _LINUX_TI113X_H
31 #define _LINUX_TI113X_H
33 #include <linux/config.h>
35 /* Register definitions for TI 113X PCI-to-CardBus bridges */
37 /* System Control Register */
38 #define TI113X_SYSTEM_CONTROL 0x0080 /* 32 bit */
39 #define TI113X_SCR_SMIROUTE 0x04000000
40 #define TI113X_SCR_SMISTATUS 0x02000000
41 #define TI113X_SCR_SMIENB 0x01000000
42 #define TI113X_SCR_VCCPROT 0x00200000
43 #define TI113X_SCR_REDUCEZV 0x00100000
44 #define TI113X_SCR_CDREQEN 0x00080000
45 #define TI113X_SCR_CDMACHAN 0x00070000
46 #define TI113X_SCR_SOCACTIVE 0x00002000
47 #define TI113X_SCR_PWRSTREAM 0x00000800
48 #define TI113X_SCR_DELAYUP 0x00000400
49 #define TI113X_SCR_DELAYDOWN 0x00000200
50 #define TI113X_SCR_INTERROGATE 0x00000100
51 #define TI113X_SCR_CLKRUN_SEL 0x00000080
52 #define TI113X_SCR_PWRSAVINGS 0x00000040
53 #define TI113X_SCR_SUBSYSRW 0x00000020
54 #define TI113X_SCR_CB_DPAR 0x00000010
55 #define TI113X_SCR_CDMA_EN 0x00000008
56 #define TI113X_SCR_ASYNC_IRQ 0x00000004
57 #define TI113X_SCR_KEEPCLK 0x00000002
58 #define TI113X_SCR_CLKRUN_ENA 0x00000001
60 #define TI122X_SCR_SER_STEP 0xc0000000
61 #define TI122X_SCR_INTRTIE 0x20000000
62 #define TI122X_SCR_CBRSVD 0x00400000
63 #define TI122X_SCR_MRBURSTDN 0x00008000
64 #define TI122X_SCR_MRBURSTUP 0x00004000
65 #define TI122X_SCR_RIMUX 0x00000001
67 /* Multimedia Control Register */
68 #define TI1250_MULTIMEDIA_CTL 0x0084 /* 8 bit */
69 #define TI1250_MMC_ZVOUTEN 0x80
70 #define TI1250_MMC_PORTSEL 0x40
71 #define TI1250_MMC_ZVEN1 0x02
72 #define TI1250_MMC_ZVEN0 0x01
74 #define TI1250_GENERAL_STATUS 0x0085 /* 8 bit */
75 #define TI1250_GPIO0_CONTROL 0x0088 /* 8 bit */
76 #define TI1250_GPIO1_CONTROL 0x0089 /* 8 bit */
77 #define TI1250_GPIO2_CONTROL 0x008a /* 8 bit */
78 #define TI1250_GPIO3_CONTROL 0x008b /* 8 bit */
79 #define TI122X_IRQMUX 0x008c /* 32 bit */
81 /* Retry Status Register */
82 #define TI113X_RETRY_STATUS 0x0090 /* 8 bit */
83 #define TI113X_RSR_PCIRETRY 0x80
84 #define TI113X_RSR_CBRETRY 0x40
85 #define TI113X_RSR_TEXP_CBB 0x20
86 #define TI113X_RSR_MEXP_CBB 0x10
87 #define TI113X_RSR_TEXP_CBA 0x08
88 #define TI113X_RSR_MEXP_CBA 0x04
89 #define TI113X_RSR_TEXP_PCI 0x02
90 #define TI113X_RSR_MEXP_PCI 0x01
92 /* Card Control Register */
93 #define TI113X_CARD_CONTROL 0x0091 /* 8 bit */
94 #define TI113X_CCR_RIENB 0x80
95 #define TI113X_CCR_ZVENABLE 0x40
96 #define TI113X_CCR_PCI_IRQ_ENA 0x20
97 #define TI113X_CCR_PCI_IREQ 0x10
98 #define TI113X_CCR_PCI_CSC 0x08
99 #define TI113X_CCR_SPKROUTEN 0x02
100 #define TI113X_CCR_IFG 0x01
102 #define TI1220_CCR_PORT_SEL 0x20
103 #define TI122X_CCR_AUD2MUX 0x04
105 /* Device Control Register */
106 #define TI113X_DEVICE_CONTROL 0x0092 /* 8 bit */
107 #define TI113X_DCR_5V_FORCE 0x40
108 #define TI113X_DCR_3V_FORCE 0x20
109 #define TI113X_DCR_IMODE_MASK 0x06
110 #define TI113X_DCR_IMODE_ISA 0x02
111 #define TI113X_DCR_IMODE_SERIAL 0x04
113 #define TI12XX_DCR_IMODE_PCI_ONLY 0x00
114 #define TI12XX_DCR_IMODE_ALL_SERIAL 0x06
116 /* Buffer Control Register */
117 #define TI113X_BUFFER_CONTROL 0x0093 /* 8 bit */
118 #define TI113X_BCR_CB_READ_DEPTH 0x08
119 #define TI113X_BCR_CB_WRITE_DEPTH 0x04
120 #define TI113X_BCR_PCI_READ_DEPTH 0x02
121 #define TI113X_BCR_PCI_WRITE_DEPTH 0x01
123 /* Diagnostic Register */
124 #define TI1250_DIAGNOSTIC 0x0093 /* 8 bit */
125 #define TI1250_DIAG_TRUE_VALUE 0x80
126 #define TI1250_DIAG_PCI_IREQ 0x40
127 #define TI1250_DIAG_PCI_CSC 0x20
128 #define TI1250_DIAG_ASYNC_CSC 0x01
131 #define TI113X_DMA_0 0x0094 /* 32 bit */
132 #define TI113X_DMA_1 0x0098 /* 32 bit */
134 /* ExCA IO offset registers */
135 #define TI113X_IO_OFFSET(map) (0x36+((map)<<1))
137 #ifdef CONFIG_CARDBUS
139 static int ti_intctl(struct yenta_socket *socket)
141 u8 new, reg = exca_readb(socket, I365_INTCTL);
143 new = reg & ~I365_INTR_ENA;
145 new |= I365_INTR_ENA;
147 exca_writeb(socket, I365_INTCTL, new);
152 * Zoom video control for TI122x/113x chips
155 static void ti_zoom_video(struct pcmcia_socket *sock, int onoff)
158 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
160 /* If we don't have a Zoom Video switch this is harmless,
161 we just tristate the unused (ZV) lines */
162 reg = config_readb(socket, TI113X_CARD_CONTROL);
164 /* Zoom zoom, we will all go together, zoom zoom, zoom zoom */
165 reg |= TI113X_CCR_ZVENABLE;
167 reg &= ~TI113X_CCR_ZVENABLE;
168 config_writeb(socket, TI113X_CARD_CONTROL, reg);
172 * The 145x series can also use this. They have an additional
173 * ZV autodetect mode we don't use but don't actually need.
174 * FIXME: manual says its in func0 and func1 but disagrees with
175 * itself about this - do we need to force func0, if so we need
176 * to know a lot more about socket pairings in pcmcia_socket than
180 static void ti1250_zoom_video(struct pcmcia_socket *sock, int onoff)
182 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
186 ti_zoom_video(sock, onoff);
188 reg = config_readb(socket, 0x84);
189 reg |= (1<<7); /* ZV bus enable */
191 if(PCI_FUNC(socket->dev->devfn)==1)
196 reg &= ~(1<<6); /* Clear select bit */
197 reg |= shift<<6; /* Favour our socket */
198 reg |= 1<<shift; /* Socket zoom video on */
202 reg &= ~(1<<6); /* Clear select bit */
203 reg |= (1^shift)<<6; /* Favour other socket */
204 reg &= ~(1<<shift); /* Socket zoon video off */
207 config_writeb(socket, 0x84, reg);
210 static void ti_set_zv(struct pcmcia_socket *sock)
212 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
213 if(socket->dev->vendor == PCI_VENDOR_ID_TI)
215 switch(socket->dev->device)
217 /* There may be more .. */
218 case PCI_DEVICE_ID_TI_1220:
219 case PCI_DEVICE_ID_TI_1221:
220 case PCI_DEVICE_ID_TI_1225:
221 sock->zoom_video = ti_zoom_video;
223 case PCI_DEVICE_ID_TI_1250:
224 case PCI_DEVICE_ID_TI_1251A:
225 case PCI_DEVICE_ID_TI_1251B:
226 case PCI_DEVICE_ID_TI_1450:
227 sock->zoom_video = ti1250_zoom_video;
231 static int ti_init(struct pcmcia_socket *sock)
233 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
242 * Generic TI init - TI has an extension for the
243 * INTCTL register that sets the PCI CSC interrupt.
244 * Make sure we set it correctly at open and init
246 * - open: disable the PCI CSC interrupt. This makes
247 * it possible to use the CSC interrupt to probe the
249 * - init: set the interrupt to match our PCI state.
250 * This makes us correctly get PCI CSC interrupt
253 static int ti_override(struct yenta_socket *socket)
255 u8 new, reg = exca_readb(socket, I365_INTCTL);
257 new = reg & ~I365_INTR_ENA;
259 exca_writeb(socket, I365_INTCTL, new);
262 * If ISA interrupts don't work, then fall back to routing card
263 * interrupts to the PCI interrupt of the socket.
265 * Tweaking this when we are using serial PCI IRQs causes hangs
268 if (!socket->socket.irq_mask) {
271 devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
272 if ((devctl & TI113X_DCR_IMODE_MASK) != TI12XX_DCR_IMODE_ALL_SERIAL) {
273 printk (KERN_INFO "ti113x: Routing card interrupts to PCI\n");
275 devctl &= ~TI113X_DCR_IMODE_MASK;
277 irqmux = config_readl(socket, TI122X_IRQMUX);
278 irqmux = (irqmux & ~0x0f) | 0x02; /* route INTA */
279 irqmux = (irqmux & ~0xf0) | 0x20; /* route INTB */
281 config_writel(socket, TI122X_IRQMUX, irqmux);
282 config_writeb(socket, TI113X_DEVICE_CONTROL, devctl);
286 socket->socket.ops->init = ti_init;
290 #define ti_sysctl(socket) ((socket)->private[0])
291 #define ti_cardctl(socket) ((socket)->private[1])
292 #define ti_devctl(socket) ((socket)->private[2])
293 #define ti_diag(socket) ((socket)->private[3])
294 #define ti_irqmux(socket) ((socket)->private[4])
297 static int ti113x_init(struct pcmcia_socket *sock)
299 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
303 config_writel(socket, TI113X_SYSTEM_CONTROL, ti_sysctl(socket));
304 config_writeb(socket, TI113X_CARD_CONTROL, ti_cardctl(socket));
305 config_writeb(socket, TI113X_DEVICE_CONTROL, ti_devctl(socket));
310 static int ti113x_override(struct yenta_socket *socket)
312 ti_sysctl(socket) = config_readl(socket, TI113X_SYSTEM_CONTROL);
313 ti_cardctl(socket) = config_readb(socket, TI113X_CARD_CONTROL);
314 ti_devctl(socket) = config_readb(socket, TI113X_DEVICE_CONTROL);
316 ti_cardctl(socket) &= ~(TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_IREQ | TI113X_CCR_PCI_CSC);
318 ti_cardctl(socket) |= TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_CSC | TI113X_CCR_PCI_IREQ;
320 socket->socket.ops->init = ti113x_init;
325 static int ti1250_init(struct pcmcia_socket *sock)
327 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
331 ti_irqmux(socket) = config_readl(socket, TI122X_IRQMUX);
332 ti_irqmux(socket) = (ti_irqmux(socket) & ~0x0f) | 0x02; /* route INTA */
333 if (!(ti_sysctl(socket) & TI122X_SCR_INTRTIE))
334 ti_irqmux(socket) |= 0x20; /* route INTB */
336 config_writel(socket, TI122X_IRQMUX, ti_irqmux(socket));
338 config_writeb(socket, TI1250_DIAGNOSTIC, ti_diag(socket));
342 static int ti1250_override(struct yenta_socket *socket)
344 ti_diag(socket) = config_readb(socket, TI1250_DIAGNOSTIC);
346 ti_diag(socket) &= ~(TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ);
348 ti_diag(socket) |= TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ;
349 ti113x_override(socket);
350 socket->socket.ops->init = ti1250_init;
355 static int ti12xx_override(struct yenta_socket *socket)
357 /* make sure that memory burst is active */
358 ti_sysctl(socket) = config_readl(socket, TI113X_SYSTEM_CONTROL);
359 ti_sysctl(socket) |= TI122X_SCR_MRBURSTUP;
360 config_writel(socket, TI113X_SYSTEM_CONTROL, ti_sysctl(socket));
362 return ti113x_override(socket);
365 #endif /* CONFIG_CARDBUS */
367 #endif /* _LINUX_TI113X_H */