diff options
Diffstat (limited to 'kernel/drivers/pcmcia/ti113x.h')
| -rw-r--r-- | kernel/drivers/pcmcia/ti113x.h | 984 |
1 files changed, 984 insertions, 0 deletions
diff --git a/kernel/drivers/pcmcia/ti113x.h b/kernel/drivers/pcmcia/ti113x.h new file mode 100644 index 000000000..a71789486 --- /dev/null +++ b/kernel/drivers/pcmcia/ti113x.h @@ -0,0 +1,984 @@ +/* + * ti113x.h 1.16 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_TI113X_H +#define _LINUX_TI113X_H + + +/* Register definitions for TI 113X PCI-to-CardBus bridges */ + +/* System Control Register */ +#define TI113X_SYSTEM_CONTROL 0x0080 /* 32 bit */ +#define TI113X_SCR_SMIROUTE 0x04000000 +#define TI113X_SCR_SMISTATUS 0x02000000 +#define TI113X_SCR_SMIENB 0x01000000 +#define TI113X_SCR_VCCPROT 0x00200000 +#define TI113X_SCR_REDUCEZV 0x00100000 +#define TI113X_SCR_CDREQEN 0x00080000 +#define TI113X_SCR_CDMACHAN 0x00070000 +#define TI113X_SCR_SOCACTIVE 0x00002000 +#define TI113X_SCR_PWRSTREAM 0x00000800 +#define TI113X_SCR_DELAYUP 0x00000400 +#define TI113X_SCR_DELAYDOWN 0x00000200 +#define TI113X_SCR_INTERROGATE 0x00000100 +#define TI113X_SCR_CLKRUN_SEL 0x00000080 +#define TI113X_SCR_PWRSAVINGS 0x00000040 +#define TI113X_SCR_SUBSYSRW 0x00000020 +#define TI113X_SCR_CB_DPAR 0x00000010 +#define TI113X_SCR_CDMA_EN 0x00000008 +#define TI113X_SCR_ASYNC_IRQ 0x00000004 +#define TI113X_SCR_KEEPCLK 0x00000002 +#define TI113X_SCR_CLKRUN_ENA 0x00000001 + +#define TI122X_SCR_SER_STEP 0xc0000000 +#define TI122X_SCR_INTRTIE 0x20000000 +#define TIXX21_SCR_TIEALL 0x10000000 +#define TI122X_SCR_CBRSVD 0x00400000 +#define TI122X_SCR_MRBURSTDN 0x00008000 +#define TI122X_SCR_MRBURSTUP 0x00004000 +#define TI122X_SCR_RIMUX 0x00000001 + +/* Multimedia Control Register */ +#define TI1250_MULTIMEDIA_CTL 0x0084 /* 8 bit */ +#define TI1250_MMC_ZVOUTEN 0x80 +#define TI1250_MMC_PORTSEL 0x40 +#define TI1250_MMC_ZVEN1 0x02 +#define TI1250_MMC_ZVEN0 0x01 + +#define TI1250_GENERAL_STATUS 0x0085 /* 8 bit */ +#define TI1250_GPIO0_CONTROL 0x0088 /* 8 bit */ +#define TI1250_GPIO1_CONTROL 0x0089 /* 8 bit */ +#define TI1250_GPIO2_CONTROL 0x008a /* 8 bit */ +#define TI1250_GPIO3_CONTROL 0x008b /* 8 bit */ +#define TI1250_GPIO_MODE_MASK 0xc0 + +/* IRQMUX/MFUNC Register */ +#define TI122X_MFUNC 0x008c /* 32 bit */ +#define TI122X_MFUNC0_MASK 0x0000000f +#define TI122X_MFUNC1_MASK 0x000000f0 +#define TI122X_MFUNC2_MASK 0x00000f00 +#define TI122X_MFUNC3_MASK 0x0000f000 +#define TI122X_MFUNC4_MASK 0x000f0000 +#define TI122X_MFUNC5_MASK 0x00f00000 +#define TI122X_MFUNC6_MASK 0x0f000000 + +#define TI122X_MFUNC0_INTA 0x00000002 +#define TI125X_MFUNC0_INTB 0x00000001 +#define TI122X_MFUNC1_INTB 0x00000020 +#define TI122X_MFUNC3_IRQSER 0x00001000 + + +/* Retry Status Register */ +#define TI113X_RETRY_STATUS 0x0090 /* 8 bit */ +#define TI113X_RSR_PCIRETRY 0x80 +#define TI113X_RSR_CBRETRY 0x40 +#define TI113X_RSR_TEXP_CBB 0x20 +#define TI113X_RSR_MEXP_CBB 0x10 +#define TI113X_RSR_TEXP_CBA 0x08 +#define TI113X_RSR_MEXP_CBA 0x04 +#define TI113X_RSR_TEXP_PCI 0x02 +#define TI113X_RSR_MEXP_PCI 0x01 + +/* Card Control Register */ +#define TI113X_CARD_CONTROL 0x0091 /* 8 bit */ +#define TI113X_CCR_RIENB 0x80 +#define TI113X_CCR_ZVENABLE 0x40 +#define TI113X_CCR_PCI_IRQ_ENA 0x20 +#define TI113X_CCR_PCI_IREQ 0x10 +#define TI113X_CCR_PCI_CSC 0x08 +#define TI113X_CCR_SPKROUTEN 0x02 +#define TI113X_CCR_IFG 0x01 + +#define TI1220_CCR_PORT_SEL 0x20 +#define TI122X_CCR_AUD2MUX 0x04 + +/* Device Control Register */ +#define TI113X_DEVICE_CONTROL 0x0092 /* 8 bit */ +#define TI113X_DCR_5V_FORCE 0x40 +#define TI113X_DCR_3V_FORCE 0x20 +#define TI113X_DCR_IMODE_MASK 0x06 +#define TI113X_DCR_IMODE_ISA 0x02 +#define TI113X_DCR_IMODE_SERIAL 0x04 + +#define TI12XX_DCR_IMODE_PCI_ONLY 0x00 +#define TI12XX_DCR_IMODE_ALL_SERIAL 0x06 + +/* Buffer Control Register */ +#define TI113X_BUFFER_CONTROL 0x0093 /* 8 bit */ +#define TI113X_BCR_CB_READ_DEPTH 0x08 +#define TI113X_BCR_CB_WRITE_DEPTH 0x04 +#define TI113X_BCR_PCI_READ_DEPTH 0x02 +#define TI113X_BCR_PCI_WRITE_DEPTH 0x01 + +/* Diagnostic Register */ +#define TI1250_DIAGNOSTIC 0x0093 /* 8 bit */ +#define TI1250_DIAG_TRUE_VALUE 0x80 +#define TI1250_DIAG_PCI_IREQ 0x40 +#define TI1250_DIAG_PCI_CSC 0x20 +#define TI1250_DIAG_ASYNC_CSC 0x01 + +/* DMA Registers */ +#define TI113X_DMA_0 0x0094 /* 32 bit */ +#define TI113X_DMA_1 0x0098 /* 32 bit */ + +/* ExCA IO offset registers */ +#define TI113X_IO_OFFSET(map) (0x36+((map)<<1)) + +/* EnE test register */ +#define ENE_TEST_C9 0xc9 /* 8bit */ +#define ENE_TEST_C9_TLTENABLE 0x02 +#define ENE_TEST_C9_PFENABLE_F0 0x04 +#define ENE_TEST_C9_PFENABLE_F1 0x08 +#define ENE_TEST_C9_PFENABLE (ENE_TEST_C9_PFENABLE_F0 | ENE_TEST_C9_PFENABLE_F1) +#define ENE_TEST_C9_WPDISALBLE_F0 0x40 +#define ENE_TEST_C9_WPDISALBLE_F1 0x80 +#define ENE_TEST_C9_WPDISALBLE (ENE_TEST_C9_WPDISALBLE_F0 | ENE_TEST_C9_WPDISALBLE_F1) + +/* + * Texas Instruments CardBus controller overrides. + */ +#define ti_sysctl(socket) ((socket)->private[0]) +#define ti_cardctl(socket) ((socket)->private[1]) +#define ti_devctl(socket) ((socket)->private[2]) +#define ti_diag(socket) ((socket)->private[3]) +#define ti_mfunc(socket) ((socket)->private[4]) +#define ene_test_c9(socket) ((socket)->private[5]) + +/* + * These are the TI specific power management handlers. + */ +static void ti_save_state(struct yenta_socket *socket) +{ + ti_sysctl(socket) = config_readl(socket, TI113X_SYSTEM_CONTROL); + ti_mfunc(socket) = config_readl(socket, TI122X_MFUNC); + ti_cardctl(socket) = config_readb(socket, TI113X_CARD_CONTROL); + ti_devctl(socket) = config_readb(socket, TI113X_DEVICE_CONTROL); + ti_diag(socket) = config_readb(socket, TI1250_DIAGNOSTIC); + + if (socket->dev->vendor == PCI_VENDOR_ID_ENE) + ene_test_c9(socket) = config_readb(socket, ENE_TEST_C9); +} + +static void ti_restore_state(struct yenta_socket *socket) +{ + config_writel(socket, TI113X_SYSTEM_CONTROL, ti_sysctl(socket)); + config_writel(socket, TI122X_MFUNC, ti_mfunc(socket)); + config_writeb(socket, TI113X_CARD_CONTROL, ti_cardctl(socket)); + config_writeb(socket, TI113X_DEVICE_CONTROL, ti_devctl(socket)); + config_writeb(socket, TI1250_DIAGNOSTIC, ti_diag(socket)); + + if (socket->dev->vendor == PCI_VENDOR_ID_ENE) + config_writeb(socket, ENE_TEST_C9, ene_test_c9(socket)); +} + +/* + * Zoom video control for TI122x/113x chips + */ + +static void ti_zoom_video(struct pcmcia_socket *sock, int onoff) +{ + u8 reg; + struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); + + /* If we don't have a Zoom Video switch this is harmless, + we just tristate the unused (ZV) lines */ + reg = config_readb(socket, TI113X_CARD_CONTROL); + if (onoff) + /* Zoom zoom, we will all go together, zoom zoom, zoom zoom */ + reg |= TI113X_CCR_ZVENABLE; + else + reg &= ~TI113X_CCR_ZVENABLE; + config_writeb(socket, TI113X_CARD_CONTROL, reg); +} + +/* + * The 145x series can also use this. They have an additional + * ZV autodetect mode we don't use but don't actually need. + * FIXME: manual says its in func0 and func1 but disagrees with + * itself about this - do we need to force func0, if so we need + * to know a lot more about socket pairings in pcmcia_socket than + * we do now.. uggh. + */ + +static void ti1250_zoom_video(struct pcmcia_socket *sock, int onoff) +{ + struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); + int shift = 0; + u8 reg; + + ti_zoom_video(sock, onoff); + + reg = config_readb(socket, TI1250_MULTIMEDIA_CTL); + reg |= TI1250_MMC_ZVOUTEN; /* ZV bus enable */ + + if(PCI_FUNC(socket->dev->devfn)==1) + shift = 1; + + if(onoff) + { + reg &= ~(1<<6); /* Clear select bit */ + reg |= shift<<6; /* Favour our socket */ + reg |= 1<<shift; /* Socket zoom video on */ + } + else + { + reg &= ~(1<<6); /* Clear select bit */ + reg |= (1^shift)<<6; /* Favour other socket */ + reg &= ~(1<<shift); /* Socket zoon video off */ + } + + config_writeb(socket, TI1250_MULTIMEDIA_CTL, reg); +} + +static void ti_set_zv(struct yenta_socket *socket) +{ + if(socket->dev->vendor == PCI_VENDOR_ID_TI) + { + switch(socket->dev->device) + { + /* There may be more .. */ + case PCI_DEVICE_ID_TI_1220: + case PCI_DEVICE_ID_TI_1221: + case PCI_DEVICE_ID_TI_1225: + case PCI_DEVICE_ID_TI_4510: + socket->socket.zoom_video = ti_zoom_video; + break; + case PCI_DEVICE_ID_TI_1250: + case PCI_DEVICE_ID_TI_1251A: + case PCI_DEVICE_ID_TI_1251B: + case PCI_DEVICE_ID_TI_1450: + socket->socket.zoom_video = ti1250_zoom_video; + } + } +} + + +/* + * Generic TI init - TI has an extension for the + * INTCTL register that sets the PCI CSC interrupt. + * Make sure we set it correctly at open and init + * time + * - override: disable the PCI CSC interrupt. This makes + * it possible to use the CSC interrupt to probe the + * ISA interrupts. + * - init: set the interrupt to match our PCI state. + * This makes us correctly get PCI CSC interrupt + * events. + */ +static int ti_init(struct yenta_socket *socket) +{ + u8 new, reg = exca_readb(socket, I365_INTCTL); + + new = reg & ~I365_INTR_ENA; + if (socket->dev->irq) + new |= I365_INTR_ENA; + if (new != reg) + exca_writeb(socket, I365_INTCTL, new); + return 0; +} + +static int ti_override(struct yenta_socket *socket) +{ + u8 new, reg = exca_readb(socket, I365_INTCTL); + + new = reg & ~I365_INTR_ENA; + if (new != reg) + exca_writeb(socket, I365_INTCTL, new); + + ti_set_zv(socket); + + return 0; +} + +static void ti113x_use_isa_irq(struct yenta_socket *socket) +{ + int isa_irq = -1; + u8 intctl; + u32 isa_irq_mask = 0; + + if (!isa_probe) + return; + + /* get a free isa int */ + isa_irq_mask = yenta_probe_irq(socket, isa_interrupts); + if (!isa_irq_mask) + return; /* no useable isa irq found */ + + /* choose highest available */ + for (; isa_irq_mask; isa_irq++) + isa_irq_mask >>= 1; + socket->cb_irq = isa_irq; + + exca_writeb(socket, I365_CSCINT, (isa_irq << 4)); + + intctl = exca_readb(socket, I365_INTCTL); + intctl &= ~(I365_INTR_ENA | I365_IRQ_MASK); /* CSC Enable */ + exca_writeb(socket, I365_INTCTL, intctl); + + dev_info(&socket->dev->dev, + "Yenta TI113x: using isa irq %d for CardBus\n", isa_irq); +} + + +static int ti113x_override(struct yenta_socket *socket) +{ + u8 cardctl; + + cardctl = config_readb(socket, TI113X_CARD_CONTROL); + cardctl &= ~(TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_IREQ | TI113X_CCR_PCI_CSC); + if (socket->dev->irq) + cardctl |= TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_CSC | TI113X_CCR_PCI_IREQ; + else + ti113x_use_isa_irq(socket); + + config_writeb(socket, TI113X_CARD_CONTROL, cardctl); + + return ti_override(socket); +} + + +/* irqrouting for func0, probes PCI interrupt and ISA interrupts */ +static void ti12xx_irqroute_func0(struct yenta_socket *socket) +{ + u32 mfunc, mfunc_old, devctl; + u8 gpio3, gpio3_old; + int pci_irq_status; + + mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC); + devctl = config_readb(socket, TI113X_DEVICE_CONTROL); + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: mfunc 0x%08x, devctl 0x%02x\n", mfunc, devctl); + + /* 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 (all serial or parallel) + */ + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: probing PCI interrupt failed, trying to fix\n"); + + /* for serial PCI make sure MFUNC3 is set to IRQSER */ + if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) { + 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: + mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER; + + /* write down if changed, probe */ + if (mfunc != mfunc_old) { + config_writel(socket, TI122X_MFUNC, mfunc); + + pci_irq_status = yenta_probe_cb_irq(socket); + if (pci_irq_status == 1) { + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: all-serial interrupts ok\n"); + mfunc_old = mfunc; + goto out; + } + + /* not working, back to old value */ + mfunc = mfunc_old; + config_writel(socket, TI122X_MFUNC, mfunc); + + if (pci_irq_status == -1) + goto out; + } + } + + /* serial PCI interrupts not working fall back to parallel */ + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: falling back to parallel PCI interrupts\n"); + devctl &= ~TI113X_DCR_IMODE_MASK; + devctl |= TI113X_DCR_IMODE_SERIAL; /* serial ISA could be right */ + config_writeb(socket, TI113X_DEVICE_CONTROL, devctl); + } + + /* parallel PCI interrupts: route INTA */ + 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: + /* make sure GPIO3 is set to INTA */ + gpio3 = gpio3_old = config_readb(socket, TI1250_GPIO3_CONTROL); + gpio3 &= ~TI1250_GPIO_MODE_MASK; + if (gpio3 != gpio3_old) + config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3); + break; + + default: + gpio3 = gpio3_old = 0; + + mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI122X_MFUNC0_INTA; + if (mfunc != mfunc_old) + config_writel(socket, TI122X_MFUNC, mfunc); + } + + /* time to probe again */ + pci_irq_status = yenta_probe_cb_irq(socket); + if (pci_irq_status == 1) { + mfunc_old = mfunc; + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: parallel PCI interrupts ok\n"); + } else { + /* not working, back to old value */ + mfunc = mfunc_old; + 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; + dev_printk(KERN_INFO, &socket->dev->dev, + "Yenta TI: no PCI interrupts. Fish. " + "Please report.\n"); + } +} + + +/* 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); + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: mfunc 0x%08x, devctl 0x%02x\n", + 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 + */ + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: probing PCI interrupt failed, trying to fix\n"); + + /* 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) { + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: all-serial interrupts, tied ok\n"); + 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) { + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: parallel PCI interrupts ok\n"); + 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) { + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: parallel PCI interrupts, tied ok\n"); + goto out; + } + + ti12xx_untie_interrupts(socket, old_irq); + } + } + +out: + if (pci_irq_status < 1) { + socket->cb_irq = 0; + dev_printk(KERN_INFO, &socket->dev->dev, + "TI: no PCI interrupts. Fish. Please report.\n"); + } +} + + +/* 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 together. + * 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(&slot2->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) { + dev_printk(KERN_INFO, &socket->dev->dev, + "Disabling CLKRUN feature\n"); + val |= TI113X_SCR_KEEPCLK; + } + if (!(val & TI122X_SCR_MRBURSTUP)) { + dev_printk(KERN_INFO, &socket->dev->dev, + "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); + dev_printk(KERN_INFO, &socket->dev->dev, + "Using %s to route CSC interrupts to PCI\n", + (val & TI1250_DIAG_PCI_CSC) ? "CSCINT" : "INTVAL"); + dev_printk(KERN_INFO, &socket->dev->dev, + "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) { + dev_printk(KERN_INFO, &socket->dev->dev, + "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; + + dev_printk(KERN_INFO, &socket->dev->dev, + "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 */ + |