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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/pcmcia/o2micro.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/pcmcia/o2micro.h')
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diff --git a/drivers/pcmcia/o2micro.h b/drivers/pcmcia/o2micro.h
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+/*
+ * o2micro.h 1.13 1999/10/25 20:03:34
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License
+ * at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of the
+ * above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the GPL.
+ */
+
+#ifndef _LINUX_O2MICRO_H
+#define _LINUX_O2MICRO_H
+
+#ifndef PCI_VENDOR_ID_O2
+#define PCI_VENDOR_ID_O2 0x1217
+#endif
+#ifndef PCI_DEVICE_ID_O2_6729
+#define PCI_DEVICE_ID_O2_6729 0x6729
+#endif
+#ifndef PCI_DEVICE_ID_O2_6730
+#define PCI_DEVICE_ID_O2_6730 0x673a
+#endif
+#ifndef PCI_DEVICE_ID_O2_6832
+#define PCI_DEVICE_ID_O2_6832 0x6832
+#endif
+#ifndef PCI_DEVICE_ID_O2_6836
+#define PCI_DEVICE_ID_O2_6836 0x6836
+#endif
+#ifndef PCI_DEVICE_ID_O2_6812
+#define PCI_DEVICE_ID_O2_6812 0x6872
+#endif
+
+/* Additional PCI configuration registers */
+
+#define O2_MUX_CONTROL 0x90 /* 32 bit */
+#define O2_MUX_RING_OUT 0x0000000f
+#define O2_MUX_SKTB_ACTV 0x000000f0
+#define O2_MUX_SCTA_ACTV_ENA 0x00000100
+#define O2_MUX_SCTB_ACTV_ENA 0x00000200
+#define O2_MUX_SER_IRQ_ROUTE 0x0000e000
+#define O2_MUX_SER_PCI 0x00010000
+
+#define O2_MUX_SKTA_TURBO 0x000c0000 /* for 6833, 6860 */
+#define O2_MUX_SKTB_TURBO 0x00300000
+#define O2_MUX_AUX_VCC_3V 0x00400000
+#define O2_MUX_PCI_VCC_5V 0x00800000
+#define O2_MUX_PME_MUX 0x0f000000
+
+/* Additional ExCA registers */
+
+#define O2_MODE_A 0x38
+#define O2_MODE_A_2 0x26 /* for 6833B, 6860C */
+#define O2_MODE_A_CD_PULSE 0x04
+#define O2_MODE_A_SUSP_EDGE 0x08
+#define O2_MODE_A_HOST_SUSP 0x10
+#define O2_MODE_A_PWR_MASK 0x60
+#define O2_MODE_A_QUIET 0x80
+
+#define O2_MODE_B 0x39
+#define O2_MODE_B_2 0x2e /* for 6833B, 6860C */
+#define O2_MODE_B_IDENT 0x03
+#define O2_MODE_B_ID_BSTEP 0x00
+#define O2_MODE_B_ID_CSTEP 0x01
+#define O2_MODE_B_ID_O2 0x02
+#define O2_MODE_B_VS1 0x04
+#define O2_MODE_B_VS2 0x08
+#define O2_MODE_B_IRQ15_RI 0x80
+
+#define O2_MODE_C 0x3a
+#define O2_MODE_C_DREQ_MASK 0x03
+#define O2_MODE_C_DREQ_INPACK 0x01
+#define O2_MODE_C_DREQ_WP 0x02
+#define O2_MODE_C_DREQ_BVD2 0x03
+#define O2_MODE_C_ZVIDEO 0x08
+#define O2_MODE_C_IREQ_SEL 0x30
+#define O2_MODE_C_MGMT_SEL 0xc0
+
+#define O2_MODE_D 0x3b
+#define O2_MODE_D_IRQ_MODE 0x03
+#define O2_MODE_D_PCI_CLKRUN 0x04
+#define O2_MODE_D_CB_CLKRUN 0x08
+#define O2_MODE_D_SKT_ACTV 0x20
+#define O2_MODE_D_PCI_FIFO 0x40 /* for OZ6729, OZ6730 */
+#define O2_MODE_D_W97_IRQ 0x40
+#define O2_MODE_D_ISA_IRQ 0x80
+
+#define O2_MHPG_DMA 0x3c
+#define O2_MHPG_CHANNEL 0x07
+#define O2_MHPG_CINT_ENA 0x08
+#define O2_MHPG_CSC_ENA 0x10
+
+#define O2_FIFO_ENA 0x3d
+#define O2_FIFO_ZVIDEO_3 0x08
+#define O2_FIFO_PCI_FIFO 0x10
+#define O2_FIFO_POSTWR 0x40
+#define O2_FIFO_BUFFER 0x80
+
+#define O2_MODE_E 0x3e
+#define O2_MODE_E_MHPG_DMA 0x01
+#define O2_MODE_E_SPKR_OUT 0x02
+#define O2_MODE_E_LED_OUT 0x08
+#define O2_MODE_E_SKTA_ACTV 0x10
+
+static int o2micro_override(struct yenta_socket *socket)
+{
+ /*
+ * 'reserved' register at 0x94/D4. chaning it to 0xCA (8 bit) enables
+ * read prefetching which for example makes the RME Hammerfall DSP
+ * working. for some bridges it is at 0x94, for others at 0xD4. it's
+ * ok to write to both registers on all O2 bridges.
+ * from Eric Still, 02Micro.
+ */
+ u8 a, b;
+
+ if (PCI_FUNC(socket->dev->devfn) == 0) {
+ a = config_readb(socket, 0x94);
+ b = config_readb(socket, 0xD4);
+
+ printk(KERN_INFO "Yenta O2: res at 0x94/0xD4: %02x/%02x\n", a, b);
+
+ switch (socket->dev->device) {
+ case PCI_DEVICE_ID_O2_6832:
+ printk(KERN_INFO "Yenta O2: old bridge, not enabling read prefetch / write burst\n");
+ break;
+
+ default:
+ printk(KERN_INFO "Yenta O2: enabling read prefetch/write burst\n");
+ config_writeb(socket, 0x94, a | 0x0a);
+ config_writeb(socket, 0xD4, b | 0x0a);
+ }
+ }
+
+ return 0;
+}
+
+static void o2micro_restore_state(struct yenta_socket *socket)
+{
+ /*
+ * as long as read prefetch is the only thing in
+ * o2micro_override, it's safe to call it from here
+ */
+ o2micro_override(socket);
+}
+
+#endif /* _LINUX_O2MICRO_H */