944 lines
27 KiB
C
944 lines
27 KiB
C
/*
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* ti113x.h 1.16 1999/10/25 20:03:34
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License
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* at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and
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* limitations under the License.
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*
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* The initial developer of the original code is David A. Hinds
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* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License version 2 (the "GPL"), in which
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* case the provisions of the GPL are applicable instead of the
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* above. If you wish to allow the use of your version of this file
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* only under the terms of the GPL and not to allow others to use
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* your version of this file under the MPL, indicate your decision by
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* deleting the provisions above and replace them with the notice and
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* other provisions required by the GPL. If you do not delete the
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* provisions above, a recipient may use your version of this file
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* under either the MPL or the GPL.
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*/
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#ifndef _LINUX_TI113X_H
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#define _LINUX_TI113X_H
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/* Register definitions for TI 113X PCI-to-CardBus bridges */
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/* System Control Register */
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#define TI113X_SYSTEM_CONTROL 0x0080 /* 32 bit */
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#define TI113X_SCR_SMIROUTE 0x04000000
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#define TI113X_SCR_SMISTATUS 0x02000000
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#define TI113X_SCR_SMIENB 0x01000000
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#define TI113X_SCR_VCCPROT 0x00200000
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#define TI113X_SCR_REDUCEZV 0x00100000
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#define TI113X_SCR_CDREQEN 0x00080000
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#define TI113X_SCR_CDMACHAN 0x00070000
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#define TI113X_SCR_SOCACTIVE 0x00002000
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#define TI113X_SCR_PWRSTREAM 0x00000800
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#define TI113X_SCR_DELAYUP 0x00000400
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#define TI113X_SCR_DELAYDOWN 0x00000200
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#define TI113X_SCR_INTERROGATE 0x00000100
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#define TI113X_SCR_CLKRUN_SEL 0x00000080
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#define TI113X_SCR_PWRSAVINGS 0x00000040
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#define TI113X_SCR_SUBSYSRW 0x00000020
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#define TI113X_SCR_CB_DPAR 0x00000010
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#define TI113X_SCR_CDMA_EN 0x00000008
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#define TI113X_SCR_ASYNC_IRQ 0x00000004
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#define TI113X_SCR_KEEPCLK 0x00000002
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#define TI113X_SCR_CLKRUN_ENA 0x00000001
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#define TI122X_SCR_SER_STEP 0xc0000000
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#define TI122X_SCR_INTRTIE 0x20000000
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#define TIXX21_SCR_TIEALL 0x10000000
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#define TI122X_SCR_CBRSVD 0x00400000
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#define TI122X_SCR_MRBURSTDN 0x00008000
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#define TI122X_SCR_MRBURSTUP 0x00004000
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#define TI122X_SCR_RIMUX 0x00000001
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/* Multimedia Control Register */
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#define TI1250_MULTIMEDIA_CTL 0x0084 /* 8 bit */
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#define TI1250_MMC_ZVOUTEN 0x80
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#define TI1250_MMC_PORTSEL 0x40
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#define TI1250_MMC_ZVEN1 0x02
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#define TI1250_MMC_ZVEN0 0x01
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#define TI1250_GENERAL_STATUS 0x0085 /* 8 bit */
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#define TI1250_GPIO0_CONTROL 0x0088 /* 8 bit */
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#define TI1250_GPIO1_CONTROL 0x0089 /* 8 bit */
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#define TI1250_GPIO2_CONTROL 0x008a /* 8 bit */
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#define TI1250_GPIO3_CONTROL 0x008b /* 8 bit */
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#define TI1250_GPIO_MODE_MASK 0xc0
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/* IRQMUX/MFUNC Register */
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#define TI122X_MFUNC 0x008c /* 32 bit */
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#define TI122X_MFUNC0_MASK 0x0000000f
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#define TI122X_MFUNC1_MASK 0x000000f0
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#define TI122X_MFUNC2_MASK 0x00000f00
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#define TI122X_MFUNC3_MASK 0x0000f000
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#define TI122X_MFUNC4_MASK 0x000f0000
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#define TI122X_MFUNC5_MASK 0x00f00000
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#define TI122X_MFUNC6_MASK 0x0f000000
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#define TI122X_MFUNC0_INTA 0x00000002
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#define TI125X_MFUNC0_INTB 0x00000001
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#define TI122X_MFUNC1_INTB 0x00000020
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#define TI122X_MFUNC3_IRQSER 0x00001000
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/* Retry Status Register */
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#define TI113X_RETRY_STATUS 0x0090 /* 8 bit */
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#define TI113X_RSR_PCIRETRY 0x80
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#define TI113X_RSR_CBRETRY 0x40
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#define TI113X_RSR_TEXP_CBB 0x20
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#define TI113X_RSR_MEXP_CBB 0x10
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#define TI113X_RSR_TEXP_CBA 0x08
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#define TI113X_RSR_MEXP_CBA 0x04
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#define TI113X_RSR_TEXP_PCI 0x02
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#define TI113X_RSR_MEXP_PCI 0x01
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/* Card Control Register */
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#define TI113X_CARD_CONTROL 0x0091 /* 8 bit */
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#define TI113X_CCR_RIENB 0x80
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#define TI113X_CCR_ZVENABLE 0x40
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#define TI113X_CCR_PCI_IRQ_ENA 0x20
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#define TI113X_CCR_PCI_IREQ 0x10
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#define TI113X_CCR_PCI_CSC 0x08
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#define TI113X_CCR_SPKROUTEN 0x02
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#define TI113X_CCR_IFG 0x01
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#define TI1220_CCR_PORT_SEL 0x20
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#define TI122X_CCR_AUD2MUX 0x04
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/* Device Control Register */
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#define TI113X_DEVICE_CONTROL 0x0092 /* 8 bit */
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#define TI113X_DCR_5V_FORCE 0x40
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#define TI113X_DCR_3V_FORCE 0x20
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#define TI113X_DCR_IMODE_MASK 0x06
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#define TI113X_DCR_IMODE_ISA 0x02
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#define TI113X_DCR_IMODE_SERIAL 0x04
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#define TI12XX_DCR_IMODE_PCI_ONLY 0x00
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#define TI12XX_DCR_IMODE_ALL_SERIAL 0x06
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/* Buffer Control Register */
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#define TI113X_BUFFER_CONTROL 0x0093 /* 8 bit */
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#define TI113X_BCR_CB_READ_DEPTH 0x08
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#define TI113X_BCR_CB_WRITE_DEPTH 0x04
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#define TI113X_BCR_PCI_READ_DEPTH 0x02
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#define TI113X_BCR_PCI_WRITE_DEPTH 0x01
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/* Diagnostic Register */
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#define TI1250_DIAGNOSTIC 0x0093 /* 8 bit */
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#define TI1250_DIAG_TRUE_VALUE 0x80
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#define TI1250_DIAG_PCI_IREQ 0x40
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#define TI1250_DIAG_PCI_CSC 0x20
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#define TI1250_DIAG_ASYNC_CSC 0x01
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/* DMA Registers */
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#define TI113X_DMA_0 0x0094 /* 32 bit */
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#define TI113X_DMA_1 0x0098 /* 32 bit */
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/* ExCA IO offset registers */
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#define TI113X_IO_OFFSET(map) (0x36+((map)<<1))
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/* EnE test register */
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#define ENE_TEST_C9 0xc9 /* 8bit */
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#define ENE_TEST_C9_TLTENABLE 0x02
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#define ENE_TEST_C9_PFENABLE_F0 0x04
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#define ENE_TEST_C9_PFENABLE_F1 0x08
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#define ENE_TEST_C9_PFENABLE (ENE_TEST_C9_PFENABLE_F0 | ENE_TEST_C9_PFENABLE_F0)
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#define ENE_TEST_C9_WPDISALBLE_F0 0x40
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#define ENE_TEST_C9_WPDISALBLE_F1 0x80
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#define ENE_TEST_C9_WPDISALBLE (ENE_TEST_C9_WPDISALBLE_F0 | ENE_TEST_C9_WPDISALBLE_F1)
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/*
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* Texas Instruments CardBus controller overrides.
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*/
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#define ti_sysctl(socket) ((socket)->private[0])
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#define ti_cardctl(socket) ((socket)->private[1])
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#define ti_devctl(socket) ((socket)->private[2])
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#define ti_diag(socket) ((socket)->private[3])
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#define ti_mfunc(socket) ((socket)->private[4])
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#define ene_test_c9(socket) ((socket)->private[5])
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/*
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* These are the TI specific power management handlers.
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*/
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static void ti_save_state(struct yenta_socket *socket)
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{
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ti_sysctl(socket) = config_readl(socket, TI113X_SYSTEM_CONTROL);
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ti_mfunc(socket) = config_readl(socket, TI122X_MFUNC);
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ti_cardctl(socket) = config_readb(socket, TI113X_CARD_CONTROL);
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ti_devctl(socket) = config_readb(socket, TI113X_DEVICE_CONTROL);
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ti_diag(socket) = config_readb(socket, TI1250_DIAGNOSTIC);
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if (socket->dev->vendor == PCI_VENDOR_ID_ENE)
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ene_test_c9(socket) = config_readb(socket, ENE_TEST_C9);
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}
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static void ti_restore_state(struct yenta_socket *socket)
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{
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config_writel(socket, TI113X_SYSTEM_CONTROL, ti_sysctl(socket));
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config_writel(socket, TI122X_MFUNC, ti_mfunc(socket));
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config_writeb(socket, TI113X_CARD_CONTROL, ti_cardctl(socket));
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config_writeb(socket, TI113X_DEVICE_CONTROL, ti_devctl(socket));
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config_writeb(socket, TI1250_DIAGNOSTIC, ti_diag(socket));
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if (socket->dev->vendor == PCI_VENDOR_ID_ENE)
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config_writeb(socket, ENE_TEST_C9, ene_test_c9(socket));
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}
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/*
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* Zoom video control for TI122x/113x chips
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*/
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static void ti_zoom_video(struct pcmcia_socket *sock, int onoff)
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{
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u8 reg;
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struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
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/* If we don't have a Zoom Video switch this is harmless,
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we just tristate the unused (ZV) lines */
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reg = config_readb(socket, TI113X_CARD_CONTROL);
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if (onoff)
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/* Zoom zoom, we will all go together, zoom zoom, zoom zoom */
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reg |= TI113X_CCR_ZVENABLE;
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else
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reg &= ~TI113X_CCR_ZVENABLE;
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config_writeb(socket, TI113X_CARD_CONTROL, reg);
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}
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/*
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* The 145x series can also use this. They have an additional
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* ZV autodetect mode we don't use but don't actually need.
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* FIXME: manual says its in func0 and func1 but disagrees with
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* itself about this - do we need to force func0, if so we need
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* to know a lot more about socket pairings in pcmcia_socket than
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* we do now.. uggh.
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*/
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static void ti1250_zoom_video(struct pcmcia_socket *sock, int onoff)
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{
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struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
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int shift = 0;
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u8 reg;
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ti_zoom_video(sock, onoff);
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reg = config_readb(socket, TI1250_MULTIMEDIA_CTL);
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reg |= TI1250_MMC_ZVOUTEN; /* ZV bus enable */
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if(PCI_FUNC(socket->dev->devfn)==1)
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shift = 1;
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if(onoff)
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{
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reg &= ~(1<<6); /* Clear select bit */
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reg |= shift<<6; /* Favour our socket */
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reg |= 1<<shift; /* Socket zoom video on */
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}
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else
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{
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reg &= ~(1<<6); /* Clear select bit */
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reg |= (1^shift)<<6; /* Favour other socket */
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reg &= ~(1<<shift); /* Socket zoon video off */
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}
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config_writeb(socket, TI1250_MULTIMEDIA_CTL, reg);
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}
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static void ti_set_zv(struct yenta_socket *socket)
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{
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if(socket->dev->vendor == PCI_VENDOR_ID_TI)
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{
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switch(socket->dev->device)
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{
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/* There may be more .. */
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case PCI_DEVICE_ID_TI_1220:
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case PCI_DEVICE_ID_TI_1221:
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case PCI_DEVICE_ID_TI_1225:
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case PCI_DEVICE_ID_TI_4510:
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socket->socket.zoom_video = ti_zoom_video;
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break;
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case PCI_DEVICE_ID_TI_1250:
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case PCI_DEVICE_ID_TI_1251A:
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case PCI_DEVICE_ID_TI_1251B:
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case PCI_DEVICE_ID_TI_1450:
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socket->socket.zoom_video = ti1250_zoom_video;
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}
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}
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}
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/*
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* Generic TI init - TI has an extension for the
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* INTCTL register that sets the PCI CSC interrupt.
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* Make sure we set it correctly at open and init
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* time
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* - override: disable the PCI CSC interrupt. This makes
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* it possible to use the CSC interrupt to probe the
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* ISA interrupts.
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* - init: set the interrupt to match our PCI state.
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* This makes us correctly get PCI CSC interrupt
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* events.
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*/
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static int ti_init(struct yenta_socket *socket)
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{
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u8 new, reg = exca_readb(socket, I365_INTCTL);
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new = reg & ~I365_INTR_ENA;
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if (socket->cb_irq)
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new |= I365_INTR_ENA;
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if (new != reg)
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exca_writeb(socket, I365_INTCTL, new);
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return 0;
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}
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static int ti_override(struct yenta_socket *socket)
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{
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u8 new, reg = exca_readb(socket, I365_INTCTL);
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new = reg & ~I365_INTR_ENA;
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if (new != reg)
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exca_writeb(socket, I365_INTCTL, new);
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ti_set_zv(socket);
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return 0;
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}
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static int ti113x_override(struct yenta_socket *socket)
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{
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u8 cardctl;
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cardctl = config_readb(socket, TI113X_CARD_CONTROL);
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cardctl &= ~(TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_IREQ | TI113X_CCR_PCI_CSC);
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if (socket->cb_irq)
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cardctl |= TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_CSC | TI113X_CCR_PCI_IREQ;
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config_writeb(socket, TI113X_CARD_CONTROL, cardctl);
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return ti_override(socket);
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}
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/* irqrouting for func0, probes PCI interrupt and ISA interrupts */
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static void ti12xx_irqroute_func0(struct yenta_socket *socket)
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{
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u32 mfunc, mfunc_old, devctl;
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u8 gpio3, gpio3_old;
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int pci_irq_status;
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mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC);
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devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
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printk(KERN_INFO "Yenta TI: socket %s, mfunc 0x%08x, devctl 0x%02x\n",
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pci_name(socket->dev), mfunc, devctl);
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/* make sure PCI interrupts are enabled before probing */
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ti_init(socket);
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/* test PCI interrupts first. only try fixing if return value is 0! */
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pci_irq_status = yenta_probe_cb_irq(socket);
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if (pci_irq_status)
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goto out;
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/*
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* We're here which means PCI interrupts are _not_ delivered. try to
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* find the right setting (all serial or parallel)
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*/
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printk(KERN_INFO "Yenta TI: socket %s probing PCI interrupt failed, trying to fix\n",
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pci_name(socket->dev));
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/* for serial PCI make sure MFUNC3 is set to IRQSER */
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if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) {
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switch (socket->dev->device) {
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case PCI_DEVICE_ID_TI_1250:
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case PCI_DEVICE_ID_TI_1251A:
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case PCI_DEVICE_ID_TI_1251B:
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case PCI_DEVICE_ID_TI_1450:
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case PCI_DEVICE_ID_TI_1451A:
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case PCI_DEVICE_ID_TI_4450:
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case PCI_DEVICE_ID_TI_4451:
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/* these chips have no IRQSER setting in MFUNC3 */
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break;
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default:
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mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER;
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/* write down if changed, probe */
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if (mfunc != mfunc_old) {
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config_writel(socket, TI122X_MFUNC, mfunc);
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pci_irq_status = yenta_probe_cb_irq(socket);
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if (pci_irq_status == 1) {
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printk(KERN_INFO "Yenta TI: socket %s all-serial interrupts ok\n",
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pci_name(socket->dev));
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mfunc_old = mfunc;
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goto out;
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}
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/* not working, back to old value */
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mfunc = mfunc_old;
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config_writel(socket, TI122X_MFUNC, mfunc);
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if (pci_irq_status == -1)
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goto out;
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}
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}
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/* serial PCI interrupts not working fall back to parallel */
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printk(KERN_INFO "Yenta TI: socket %s falling back to parallel PCI interrupts\n",
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pci_name(socket->dev));
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devctl &= ~TI113X_DCR_IMODE_MASK;
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devctl |= TI113X_DCR_IMODE_SERIAL; /* serial ISA could be right */
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config_writeb(socket, TI113X_DEVICE_CONTROL, devctl);
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}
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/* parallel PCI interrupts: route INTA */
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switch (socket->dev->device) {
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case PCI_DEVICE_ID_TI_1250:
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case PCI_DEVICE_ID_TI_1251A:
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case PCI_DEVICE_ID_TI_1251B:
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case PCI_DEVICE_ID_TI_1450:
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/* make sure GPIO3 is set to INTA */
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gpio3 = gpio3_old = config_readb(socket, TI1250_GPIO3_CONTROL);
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gpio3 &= ~TI1250_GPIO_MODE_MASK;
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if (gpio3 != gpio3_old)
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config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3);
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break;
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default:
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gpio3 = gpio3_old = 0;
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mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI122X_MFUNC0_INTA;
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if (mfunc != mfunc_old)
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config_writel(socket, TI122X_MFUNC, mfunc);
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}
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/* time to probe again */
|
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pci_irq_status = yenta_probe_cb_irq(socket);
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if (pci_irq_status == 1) {
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mfunc_old = mfunc;
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printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts ok\n",
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pci_name(socket->dev));
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} else {
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/* not working, back to old value */
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mfunc = mfunc_old;
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config_writel(socket, TI122X_MFUNC, mfunc);
|
|
if (gpio3 != gpio3_old)
|
|
config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3_old);
|
|
}
|
|
|
|
out:
|
|
if (pci_irq_status < 1) {
|
|
socket->cb_irq = 0;
|
|
printk(KERN_INFO "Yenta TI: socket %s no PCI interrupts. Fish. Please report.\n",
|
|
pci_name(socket->dev));
|
|
}
|
|
}
|
|
|
|
|
|
/* changes the irq of func1 to match that of func0 */
|
|
static int ti12xx_align_irqs(struct yenta_socket *socket, int *old_irq)
|
|
{
|
|
struct pci_dev *func0;
|
|
|
|
/* find func0 device */
|
|
func0 = pci_get_slot(socket->dev->bus, socket->dev->devfn & ~0x07);
|
|
if (!func0)
|
|
return 0;
|
|
|
|
if (old_irq)
|
|
*old_irq = socket->cb_irq;
|
|
socket->cb_irq = socket->dev->irq = func0->irq;
|
|
|
|
pci_dev_put(func0);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* ties INTA and INTB together. also changes the devices irq to that of
|
|
* the function 0 device. call from func1 only.
|
|
* returns 1 if INTRTIE changed, 0 otherwise.
|
|
*/
|
|
static int ti12xx_tie_interrupts(struct yenta_socket *socket, int *old_irq)
|
|
{
|
|
u32 sysctl;
|
|
int ret;
|
|
|
|
sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
|
|
if (sysctl & TI122X_SCR_INTRTIE)
|
|
return 0;
|
|
|
|
/* align */
|
|
ret = ti12xx_align_irqs(socket, old_irq);
|
|
if (!ret)
|
|
return 0;
|
|
|
|
/* tie */
|
|
sysctl |= TI122X_SCR_INTRTIE;
|
|
config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* undo what ti12xx_tie_interrupts() did */
|
|
static void ti12xx_untie_interrupts(struct yenta_socket *socket, int old_irq)
|
|
{
|
|
u32 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
|
|
sysctl &= ~TI122X_SCR_INTRTIE;
|
|
config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl);
|
|
|
|
socket->cb_irq = socket->dev->irq = old_irq;
|
|
}
|
|
|
|
/*
|
|
* irqrouting for func1, plays with INTB routing
|
|
* only touches MFUNC for INTB routing. all other bits are taken
|
|
* care of in func0 already.
|
|
*/
|
|
static void ti12xx_irqroute_func1(struct yenta_socket *socket)
|
|
{
|
|
u32 mfunc, mfunc_old, devctl, sysctl;
|
|
int pci_irq_status;
|
|
|
|
mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC);
|
|
devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
|
|
printk(KERN_INFO "Yenta TI: socket %s, mfunc 0x%08x, devctl 0x%02x\n",
|
|
pci_name(socket->dev), mfunc, devctl);
|
|
|
|
/* if IRQs are configured as tied, align irq of func1 with func0 */
|
|
sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
|
|
if (sysctl & TI122X_SCR_INTRTIE)
|
|
ti12xx_align_irqs(socket, NULL);
|
|
|
|
/* make sure PCI interrupts are enabled before probing */
|
|
ti_init(socket);
|
|
|
|
/* test PCI interrupts first. only try fixing if return value is 0! */
|
|
pci_irq_status = yenta_probe_cb_irq(socket);
|
|
if (pci_irq_status)
|
|
goto out;
|
|
|
|
/*
|
|
* We're here which means PCI interrupts are _not_ delivered. try to
|
|
* find the right setting
|
|
*/
|
|
printk(KERN_INFO "Yenta TI: socket %s probing PCI interrupt failed, trying to fix\n",
|
|
pci_name(socket->dev));
|
|
|
|
|
|
/* if all serial: set INTRTIE, probe again */
|
|
if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) {
|
|
int old_irq;
|
|
|
|
if (ti12xx_tie_interrupts(socket, &old_irq)) {
|
|
pci_irq_status = yenta_probe_cb_irq(socket);
|
|
if (pci_irq_status == 1) {
|
|
printk(KERN_INFO "Yenta TI: socket %s all-serial interrupts, tied ok\n",
|
|
pci_name(socket->dev));
|
|
goto out;
|
|
}
|
|
|
|
ti12xx_untie_interrupts(socket, old_irq);
|
|
}
|
|
}
|
|
/* parallel PCI: route INTB, probe again */
|
|
else {
|
|
int old_irq;
|
|
|
|
switch (socket->dev->device) {
|
|
case PCI_DEVICE_ID_TI_1250:
|
|
/* the 1250 has one pin for IRQSER/INTB depending on devctl */
|
|
break;
|
|
|
|
case PCI_DEVICE_ID_TI_1251A:
|
|
case PCI_DEVICE_ID_TI_1251B:
|
|
case PCI_DEVICE_ID_TI_1450:
|
|
/*
|
|
* those have a pin for IRQSER/INTB plus INTB in MFUNC0
|
|
* we alread probed the shared pin, now go for MFUNC0
|
|
*/
|
|
mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI125X_MFUNC0_INTB;
|
|
break;
|
|
|
|
default:
|
|
mfunc = (mfunc & ~TI122X_MFUNC1_MASK) | TI122X_MFUNC1_INTB;
|
|
break;
|
|
}
|
|
|
|
/* write, probe */
|
|
if (mfunc != mfunc_old) {
|
|
config_writel(socket, TI122X_MFUNC, mfunc);
|
|
|
|
pci_irq_status = yenta_probe_cb_irq(socket);
|
|
if (pci_irq_status == 1) {
|
|
printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts ok\n",
|
|
pci_name(socket->dev));
|
|
goto out;
|
|
}
|
|
|
|
mfunc = mfunc_old;
|
|
config_writel(socket, TI122X_MFUNC, mfunc);
|
|
|
|
if (pci_irq_status == -1)
|
|
goto out;
|
|
}
|
|
|
|
/* still nothing: set INTRTIE */
|
|
if (ti12xx_tie_interrupts(socket, &old_irq)) {
|
|
pci_irq_status = yenta_probe_cb_irq(socket);
|
|
if (pci_irq_status == 1) {
|
|
printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts, tied ok\n",
|
|
pci_name(socket->dev));
|
|
goto out;
|
|
}
|
|
|
|
ti12xx_untie_interrupts(socket, old_irq);
|
|
}
|
|
}
|
|
|
|
out:
|
|
if (pci_irq_status < 1) {
|
|
socket->cb_irq = 0;
|
|
printk(KERN_INFO "Yenta TI: socket %s no PCI interrupts. Fish. Please report.\n",
|
|
pci_name(socket->dev));
|
|
}
|
|
}
|
|
|
|
|
|
/* Returns true value if the second slot of a two-slot controller is empty */
|
|
static int ti12xx_2nd_slot_empty(struct yenta_socket *socket)
|
|
{
|
|
struct pci_dev *func;
|
|
struct yenta_socket *slot2;
|
|
int devfn;
|
|
unsigned int state;
|
|
int ret = 1;
|
|
u32 sysctl;
|
|
|
|
/* catch the two-slot controllers */
|
|
switch (socket->dev->device) {
|
|
case PCI_DEVICE_ID_TI_1220:
|
|
case PCI_DEVICE_ID_TI_1221:
|
|
case PCI_DEVICE_ID_TI_1225:
|
|
case PCI_DEVICE_ID_TI_1251A:
|
|
case PCI_DEVICE_ID_TI_1251B:
|
|
case PCI_DEVICE_ID_TI_1420:
|
|
case PCI_DEVICE_ID_TI_1450:
|
|
case PCI_DEVICE_ID_TI_1451A:
|
|
case PCI_DEVICE_ID_TI_1520:
|
|
case PCI_DEVICE_ID_TI_1620:
|
|
case PCI_DEVICE_ID_TI_4520:
|
|
case PCI_DEVICE_ID_TI_4450:
|
|
case PCI_DEVICE_ID_TI_4451:
|
|
/*
|
|
* there are way more, but they need to be added in yenta_socket.c
|
|
* and pci_ids.h first anyway.
|
|
*/
|
|
break;
|
|
|
|
case PCI_DEVICE_ID_TI_XX12:
|
|
case PCI_DEVICE_ID_TI_X515:
|
|
case PCI_DEVICE_ID_TI_X420:
|
|
case PCI_DEVICE_ID_TI_X620:
|
|
case PCI_DEVICE_ID_TI_XX21_XX11:
|
|
case PCI_DEVICE_ID_TI_7410:
|
|
case PCI_DEVICE_ID_TI_7610:
|
|
/*
|
|
* those are either single or dual slot CB with additional functions
|
|
* like 1394, smartcard reader, etc. check the TIEALL flag for them
|
|
* the TIEALL flag binds the IRQ of all functions toghether.
|
|
* we catch the single slot variants later.
|
|
*/
|
|
sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
|
|
if (sysctl & TIXX21_SCR_TIEALL)
|
|
return 0;
|
|
|
|
break;
|
|
|
|
/* single-slot controllers have the 2nd slot empty always :) */
|
|
default:
|
|
return 1;
|
|
}
|
|
|
|
/* get other slot */
|
|
devfn = socket->dev->devfn & ~0x07;
|
|
func = pci_get_slot(socket->dev->bus,
|
|
(socket->dev->devfn & 0x07) ? devfn : devfn | 0x01);
|
|
if (!func)
|
|
return 1;
|
|
|
|
/*
|
|
* check that the device id of both slots match. this is needed for the
|
|
* XX21 and the XX11 controller that share the same device id for single
|
|
* and dual slot controllers. return '2nd slot empty'. we already checked
|
|
* if the interrupt is tied to another function.
|
|
*/
|
|
if (socket->dev->device != func->device)
|
|
goto out;
|
|
|
|
slot2 = pci_get_drvdata(func);
|
|
if (!slot2)
|
|
goto out;
|
|
|
|
/* check state */
|
|
yenta_get_status(&socket->socket, &state);
|
|
if (state & SS_DETECT) {
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
pci_dev_put(func);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* TI specifiy parts for the power hook.
|
|
*
|
|
* some TI's with some CB's produces interrupt storm on power on. it has been
|
|
* seen with atheros wlan cards on TI1225 and TI1410. solution is simply to
|
|
* disable any CB interrupts during this time.
|
|
*/
|
|
static int ti12xx_power_hook(struct pcmcia_socket *sock, int operation)
|
|
{
|
|
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
|
|
u32 mfunc, devctl, sysctl;
|
|
u8 gpio3;
|
|
|
|
/* only POWER_PRE and POWER_POST are interesting */
|
|
if ((operation != HOOK_POWER_PRE) && (operation != HOOK_POWER_POST))
|
|
return 0;
|
|
|
|
devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
|
|
sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
|
|
mfunc = config_readl(socket, TI122X_MFUNC);
|
|
|
|
/*
|
|
* all serial/tied: only disable when modparm set. always doing it
|
|
* would mean a regression for working setups 'cos it disables the
|
|
* interrupts for both both slots on 2-slot controllers
|
|
* (and users of single slot controllers where it's save have to
|
|
* live with setting the modparm, most don't have to anyway)
|
|
*/
|
|
if (((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) &&
|
|
(pwr_irqs_off || ti12xx_2nd_slot_empty(socket))) {
|
|
switch (socket->dev->device) {
|
|
case PCI_DEVICE_ID_TI_1250:
|
|
case PCI_DEVICE_ID_TI_1251A:
|
|
case PCI_DEVICE_ID_TI_1251B:
|
|
case PCI_DEVICE_ID_TI_1450:
|
|
case PCI_DEVICE_ID_TI_1451A:
|
|
case PCI_DEVICE_ID_TI_4450:
|
|
case PCI_DEVICE_ID_TI_4451:
|
|
/* these chips have no IRQSER setting in MFUNC3 */
|
|
break;
|
|
|
|
default:
|
|
if (operation == HOOK_POWER_PRE)
|
|
mfunc = (mfunc & ~TI122X_MFUNC3_MASK);
|
|
else
|
|
mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* do the job differently for func0/1 */
|
|
if ((PCI_FUNC(socket->dev->devfn) == 0) ||
|
|
((sysctl & TI122X_SCR_INTRTIE) &&
|
|
(pwr_irqs_off || ti12xx_2nd_slot_empty(socket)))) {
|
|
/* some bridges are different */
|
|
switch (socket->dev->device) {
|
|
case PCI_DEVICE_ID_TI_1250:
|
|
case PCI_DEVICE_ID_TI_1251A:
|
|
case PCI_DEVICE_ID_TI_1251B:
|
|
case PCI_DEVICE_ID_TI_1450:
|
|
/* those oldies use gpio3 for INTA */
|
|
gpio3 = config_readb(socket, TI1250_GPIO3_CONTROL);
|
|
if (operation == HOOK_POWER_PRE)
|
|
gpio3 = (gpio3 & ~TI1250_GPIO_MODE_MASK) | 0x40;
|
|
else
|
|
gpio3 &= ~TI1250_GPIO_MODE_MASK;
|
|
config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3);
|
|
break;
|
|
|
|
default:
|
|
/* all new bridges are the same */
|
|
if (operation == HOOK_POWER_PRE)
|
|
mfunc &= ~TI122X_MFUNC0_MASK;
|
|
else
|
|
mfunc |= TI122X_MFUNC0_INTA;
|
|
config_writel(socket, TI122X_MFUNC, mfunc);
|
|
}
|
|
} else {
|
|
switch (socket->dev->device) {
|
|
case PCI_DEVICE_ID_TI_1251A:
|
|
case PCI_DEVICE_ID_TI_1251B:
|
|
case PCI_DEVICE_ID_TI_1450:
|
|
/* those have INTA elsewhere and INTB in MFUNC0 */
|
|
if (operation == HOOK_POWER_PRE)
|
|
mfunc &= ~TI122X_MFUNC0_MASK;
|
|
else
|
|
mfunc |= TI125X_MFUNC0_INTB;
|
|
config_writel(socket, TI122X_MFUNC, mfunc);
|
|
|
|
break;
|
|
|
|
default:
|
|
/* all new bridges are the same */
|
|
if (operation == HOOK_POWER_PRE)
|
|
mfunc &= ~TI122X_MFUNC1_MASK;
|
|
else
|
|
mfunc |= TI122X_MFUNC1_INTB;
|
|
config_writel(socket, TI122X_MFUNC, mfunc);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ti12xx_override(struct yenta_socket *socket)
|
|
{
|
|
u32 val, val_orig;
|
|
|
|
/* make sure that memory burst is active */
|
|
val_orig = val = config_readl(socket, TI113X_SYSTEM_CONTROL);
|
|
if (disable_clkrun && PCI_FUNC(socket->dev->devfn) == 0) {
|
|
printk(KERN_INFO "Yenta: Disabling CLKRUN feature\n");
|
|
val |= TI113X_SCR_KEEPCLK;
|
|
}
|
|
if (!(val & TI122X_SCR_MRBURSTUP)) {
|
|
printk(KERN_INFO "Yenta: Enabling burst memory read transactions\n");
|
|
val |= TI122X_SCR_MRBURSTUP;
|
|
}
|
|
if (val_orig != val)
|
|
config_writel(socket, TI113X_SYSTEM_CONTROL, val);
|
|
|
|
/*
|
|
* Yenta expects controllers to use CSCINT to route
|
|
* CSC interrupts to PCI rather than INTVAL.
|
|
*/
|
|
val = config_readb(socket, TI1250_DIAGNOSTIC);
|
|
printk(KERN_INFO "Yenta: Using %s to route CSC interrupts to PCI\n",
|
|
(val & TI1250_DIAG_PCI_CSC) ? "CSCINT" : "INTVAL");
|
|
printk(KERN_INFO "Yenta: Routing CardBus interrupts to %s\n",
|
|
(val & TI1250_DIAG_PCI_IREQ) ? "PCI" : "ISA");
|
|
|
|
/* do irqrouting, depending on function */
|
|
if (PCI_FUNC(socket->dev->devfn) == 0)
|
|
ti12xx_irqroute_func0(socket);
|
|
else
|
|
ti12xx_irqroute_func1(socket);
|
|
|
|
/* install power hook */
|
|
socket->socket.power_hook = ti12xx_power_hook;
|
|
|
|
return ti_override(socket);
|
|
}
|
|
|
|
|
|
static int ti1250_override(struct yenta_socket *socket)
|
|
{
|
|
u8 old, diag;
|
|
|
|
old = config_readb(socket, TI1250_DIAGNOSTIC);
|
|
diag = old & ~(TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ);
|
|
if (socket->cb_irq)
|
|
diag |= TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ;
|
|
|
|
if (diag != old) {
|
|
printk(KERN_INFO "Yenta: adjusting diagnostic: %02x -> %02x\n",
|
|
old, diag);
|
|
config_writeb(socket, TI1250_DIAGNOSTIC, diag);
|
|
}
|
|
|
|
return ti12xx_override(socket);
|
|
}
|
|
|
|
|
|
/**
|
|
* EnE specific part. EnE bridges are register compatible with TI bridges but
|
|
* have their own test registers and more important their own little problems.
|
|
* Some fixup code to make everybody happy (TM).
|
|
*/
|
|
|
|
#ifdef CONFIG_YENTA_ENE_TUNE
|
|
/**
|
|
* set/clear various test bits:
|
|
* Defaults to clear the bit.
|
|
* - mask (u8) defines what bits to change
|
|
* - bits (u8) is the values to change them to
|
|
* -> it's
|
|
* current = (current & ~mask) | bits
|
|
*/
|
|
/* pci ids of devices that wants to have the bit set */
|
|
#define DEVID(_vend,_dev,_subvend,_subdev,mask,bits) { \
|
|
.vendor = _vend, \
|
|
.device = _dev, \
|
|
.subvendor = _subvend, \
|
|
.subdevice = _subdev, \
|
|
.driver_data = ((mask) << 8 | (bits)), \
|
|
}
|
|
static struct pci_device_id ene_tune_tbl[] = {
|
|
/* Echo Audio products based on motorola DSP56301 and DSP56361 */
|
|
DEVID(PCI_VENDOR_ID_MOTOROLA, 0x1801, 0xECC0, PCI_ANY_ID,
|
|
ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE),
|
|
DEVID(PCI_VENDOR_ID_MOTOROLA, 0x3410, 0xECC0, PCI_ANY_ID,
|
|
ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE),
|
|
|
|
{}
|
|
};
|
|
|
|
static void ene_tune_bridge(struct pcmcia_socket *sock, struct pci_bus *bus)
|
|
{
|
|
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
|
|
struct pci_dev *dev;
|
|
struct pci_device_id *id = NULL;
|
|
u8 test_c9, old_c9, mask, bits;
|
|
|
|
list_for_each_entry(dev, &bus->devices, bus_list) {
|
|
id = (struct pci_device_id *) pci_match_id(ene_tune_tbl, dev);
|
|
if (id)
|
|
break;
|
|
}
|
|
|
|
test_c9 = old_c9 = config_readb(socket, ENE_TEST_C9);
|
|
if (id) {
|
|
mask = (id->driver_data >> 8) & 0xFF;
|
|
bits = id->driver_data & 0xFF;
|
|
|
|
test_c9 = (test_c9 & ~mask) | bits;
|
|
}
|
|
else
|
|
/* default to clear TLTEnable bit, old behaviour */
|
|
test_c9 &= ~ENE_TEST_C9_TLTENABLE;
|
|
|
|
printk(KERN_INFO "yenta EnE: chaning testregister 0xC9, %02x -> %02x\n", old_c9, test_c9);
|
|
config_writeb(socket, ENE_TEST_C9, test_c9);
|
|
}
|
|
|
|
static int ene_override(struct yenta_socket *socket)
|
|
{
|
|
/* install tune_bridge() function */
|
|
socket->socket.tune_bridge = ene_tune_bridge;
|
|
|
|
return ti1250_override(socket);
|
|
}
|
|
#else
|
|
# define ene_override ti1250_override
|
|
#endif /* !CONFIG_YENTA_ENE_TUNE */
|
|
|
|
#endif /* _LINUX_TI113X_H */
|
|
|