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-rw-r--r--drivers/ata/Kconfig10
-rw-r--r--drivers/ata/Makefile1
-rw-r--r--drivers/ata/pata_icside.c686
-rw-r--r--drivers/i2c/busses/i2c-pxa.c18
-rw-r--r--drivers/mmc/pxamci.c4
-rw-r--r--drivers/net/irda/pxaficp_ir.c12
-rw-r--r--drivers/serial/amba-pl010.c295
-rw-r--r--drivers/serial/atmel_serial.c9
-rw-r--r--drivers/serial/atmel_serial.h3
-rw-r--r--drivers/serial/pxa.c8
-rw-r--r--drivers/usb/gadget/pxa2xx_udc.c4
-rw-r--r--drivers/usb/host/ohci-pxa27x.c4
-rw-r--r--drivers/video/pxafb.c4
13 files changed, 904 insertions, 154 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 7bdbe5a914d..77846dd0a4f 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -545,13 +545,21 @@ config PATA_WINBOND_VLB
config PATA_PLATFORM
tristate "Generic platform device PATA support"
- depends on EMBEDDED
+ depends on EMBEDDED || ARCH_RPC
help
This option enables support for generic directly connected ATA
devices commonly found on embedded systems.
If unsure, say N.
+config PATA_ICSIDE
+ tristate "Acorn ICS PATA support"
+ depends on ARM && ARCH_ACORN
+ help
+ On Acorn systems, say Y here if you wish to use the ICS PATA
+ interface card. This is not required for ICS partition support.
+ If you are unsure, say N to this.
+
config PATA_IXP4XX_CF
tristate "IXP4XX Compact Flash support"
depends on ARCH_IXP4XX
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index 13d7397e000..cc8798b1a54 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -61,6 +61,7 @@ obj-$(CONFIG_PATA_TRIFLEX) += pata_triflex.o
obj-$(CONFIG_PATA_IXP4XX_CF) += pata_ixp4xx_cf.o
obj-$(CONFIG_PATA_SCC) += pata_scc.o
obj-$(CONFIG_PATA_PLATFORM) += pata_platform.o
+obj-$(CONFIG_PATA_ICSIDE) += pata_icside.o
# Should be last but one libata driver
obj-$(CONFIG_ATA_GENERIC) += ata_generic.o
# Should be last libata driver
diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c
new file mode 100644
index 00000000000..dbc8ee2adcf
--- /dev/null
+++ b/drivers/ata/pata_icside.c
@@ -0,0 +1,686 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <scsi/scsi_host.h>
+#include <linux/ata.h>
+#include <linux/libata.h>
+
+#include <asm/dma.h>
+#include <asm/ecard.h>
+
+#define DRV_NAME "pata_icside"
+
+#define ICS_IDENT_OFFSET 0x2280
+
+#define ICS_ARCIN_V5_INTRSTAT 0x0000
+#define ICS_ARCIN_V5_INTROFFSET 0x0004
+
+#define ICS_ARCIN_V6_INTROFFSET_1 0x2200
+#define ICS_ARCIN_V6_INTRSTAT_1 0x2290
+#define ICS_ARCIN_V6_INTROFFSET_2 0x3200
+#define ICS_ARCIN_V6_INTRSTAT_2 0x3290
+
+struct portinfo {
+ unsigned int dataoffset;
+ unsigned int ctrloffset;
+ unsigned int stepping;
+};
+
+static const struct portinfo pata_icside_portinfo_v5 = {
+ .dataoffset = 0x2800,
+ .ctrloffset = 0x2b80,
+ .stepping = 6,
+};
+
+static const struct portinfo pata_icside_portinfo_v6_1 = {
+ .dataoffset = 0x2000,
+ .ctrloffset = 0x2380,
+ .stepping = 6,
+};
+
+static const struct portinfo pata_icside_portinfo_v6_2 = {
+ .dataoffset = 0x3000,
+ .ctrloffset = 0x3380,
+ .stepping = 6,
+};
+
+#define PATA_ICSIDE_MAX_SG 128
+
+struct pata_icside_state {
+ void __iomem *irq_port;
+ void __iomem *ioc_base;
+ unsigned int type;
+ unsigned int dma;
+ struct {
+ u8 port_sel;
+ u8 disabled;
+ unsigned int speed[ATA_MAX_DEVICES];
+ } port[2];
+ struct scatterlist sg[PATA_ICSIDE_MAX_SG];
+};
+
+#define ICS_TYPE_A3IN 0
+#define ICS_TYPE_A3USER 1
+#define ICS_TYPE_V6 3
+#define ICS_TYPE_V5 15
+#define ICS_TYPE_NOTYPE ((unsigned int)-1)
+
+/* ---------------- Version 5 PCB Support Functions --------------------- */
+/* Prototype: pata_icside_irqenable_arcin_v5 (struct expansion_card *ec, int irqnr)
+ * Purpose : enable interrupts from card
+ */
+static void pata_icside_irqenable_arcin_v5 (struct expansion_card *ec, int irqnr)
+{
+ struct pata_icside_state *state = ec->irq_data;
+
+ writeb(0, state->irq_port + ICS_ARCIN_V5_INTROFFSET);
+}
+
+/* Prototype: pata_icside_irqdisable_arcin_v5 (struct expansion_card *ec, int irqnr)
+ * Purpose : disable interrupts from card
+ */
+static void pata_icside_irqdisable_arcin_v5 (struct expansion_card *ec, int irqnr)
+{
+ struct pata_icside_state *state = ec->irq_data;
+
+ readb(state->irq_port + ICS_ARCIN_V5_INTROFFSET);
+}
+
+static const expansioncard_ops_t pata_icside_ops_arcin_v5 = {
+ .irqenable = pata_icside_irqenable_arcin_v5,
+ .irqdisable = pata_icside_irqdisable_arcin_v5,
+};
+
+
+/* ---------------- Version 6 PCB Support Functions --------------------- */
+/* Prototype: pata_icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr)
+ * Purpose : enable interrupts from card
+ */
+static void pata_icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr)
+{
+ struct pata_icside_state *state = ec->irq_data;
+ void __iomem *base = state->irq_port;
+
+ if (!state->port[0].disabled)
+ writeb(0, base + ICS_ARCIN_V6_INTROFFSET_1);
+ if (!state->port[1].disabled)
+ writeb(0, base + ICS_ARCIN_V6_INTROFFSET_2);
+}
+
+/* Prototype: pata_icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr)
+ * Purpose : disable interrupts from card
+ */
+static void pata_icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr)
+{
+ struct pata_icside_state *state = ec->irq_data;
+
+ readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
+ readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
+}
+
+/* Prototype: pata_icside_irqprobe(struct expansion_card *ec)
+ * Purpose : detect an active interrupt from card
+ */
+static int pata_icside_irqpending_arcin_v6(struct expansion_card *ec)
+{
+ struct pata_icside_state *state = ec->irq_data;
+
+ return readb(state->irq_port + ICS_ARCIN_V6_INTRSTAT_1) & 1 ||
+ readb(state->irq_port + ICS_ARCIN_V6_INTRSTAT_2) & 1;
+}
+
+static const expansioncard_ops_t pata_icside_ops_arcin_v6 = {
+ .irqenable = pata_icside_irqenable_arcin_v6,
+ .irqdisable = pata_icside_irqdisable_arcin_v6,
+ .irqpending = pata_icside_irqpending_arcin_v6,
+};
+
+
+/*
+ * SG-DMA support.
+ *
+ * Similar to the BM-DMA, but we use the RiscPCs IOMD DMA controllers.
+ * There is only one DMA controller per card, which means that only
+ * one drive can be accessed at one time. NOTE! We do not enforce that
+ * here, but we rely on the main IDE driver spotting that both
+ * interfaces use the same IRQ, which should guarantee this.
+ */
+
+/*
+ * Configure the IOMD to give the appropriate timings for the transfer
+ * mode being requested. We take the advice of the ATA standards, and
+ * calculate the cycle time based on the transfer mode, and the EIDE
+ * MW DMA specs that the drive provides in the IDENTIFY command.
+ *
+ * We have the following IOMD DMA modes to choose from:
+ *
+ * Type Active Recovery Cycle
+ * A 250 (250) 312 (550) 562 (800)
+ * B 187 (200) 250 (550) 437 (750)
+ * C 125 (125) 125 (375) 250 (500)
+ * D 62 (50) 125 (375) 187 (425)
+ *
+ * (figures in brackets are actual measured timings on DIOR/DIOW)
+ *
+ * However, we also need to take care of the read/write active and
+ * recovery timings:
+ *
+ * Read Write
+ * Mode Active -- Recovery -- Cycle IOMD type
+ * MW0 215 50 215 480 A
+ * MW1 80 50 50 150 C
+ * MW2 70 25 25 120 C
+ */
+static void pata_icside_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pata_icside_state *state = ap->host->private_data;
+ struct ata_timing t;
+ unsigned int cycle;
+ char iomd_type;
+
+ /*
+ * DMA is based on a 16MHz clock
+ */
+ if (ata_timing_compute(adev, adev->dma_mode, &t, 1000, 1))
+ return;
+
+ /*
+ * Choose the IOMD cycle timing which ensure that the interface
+ * satisfies the measured active, recovery and cycle times.
+ */
+ if (t.active <= 50 && t.recover <= 375 && t.cycle <= 425)
+ iomd_type = 'D', cycle = 187;
+ else if (t.active <= 125 && t.recover <= 375 && t.cycle <= 500)
+ iomd_type = 'C', cycle = 250;
+ else if (t.active <= 200 && t.recover <= 550 && t.cycle <= 750)
+ iomd_type = 'B', cycle = 437;
+ else
+ iomd_type = 'A', cycle = 562;
+
+ ata_dev_printk(adev, KERN_INFO, "timings: act %dns rec %dns cyc %dns (%c)\n",
+ t.active, t.recover, t.cycle, iomd_type);
+
+ state->port[ap->port_no].speed[adev->devno] = cycle;
+}
+
+static void pata_icside_bmdma_setup(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct pata_icside_state *state = ap->host->private_data;
+ struct scatterlist *sg, *rsg = state->sg;
+ unsigned int write = qc->tf.flags & ATA_TFLAG_WRITE;
+
+ /*
+ * We are simplex; BUG if we try to fiddle with DMA
+ * while it's active.
+ */
+ BUG_ON(dma_channel_active(state->dma));
+
+ /*
+ * Copy ATAs scattered sg list into a contiguous array of sg
+ */
+ ata_for_each_sg(sg, qc) {
+ memcpy(rsg, sg, sizeof(*sg));
+ rsg++;
+ }
+
+ /*
+ * Route the DMA signals to the correct interface
+ */
+ writeb(state->port[ap->port_no].port_sel, state->ioc_base);
+
+ set_dma_speed(state->dma, state->port[ap->port_no].speed[qc->dev->devno]);
+ set_dma_sg(state->dma, state->sg, rsg - state->sg);
+ set_dma_mode(state->dma, write ? DMA_MODE_WRITE : DMA_MODE_READ);
+
+ /* issue r/w command */
+ ap->ops->exec_command(ap, &qc->tf);
+}
+
+static void pata_icside_bmdma_start(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct pata_icside_state *state = ap->host->private_data;
+
+ BUG_ON(dma_channel_active(state->dma));
+ enable_dma(state->dma);
+}
+
+static void pata_icside_bmdma_stop(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct pata_icside_state *state = ap->host->private_data;
+
+ disable_dma(state->dma);
+
+ /* see ata_bmdma_stop */
+ ata_altstatus(ap);
+}
+
+static u8 pata_icside_bmdma_status(struct ata_port *ap)
+{
+ struct pata_icside_state *state = ap->host->private_data;
+ void __iomem *irq_port;
+
+ irq_port = state->irq_port + (ap->port_no ? ICS_ARCIN_V6_INTRSTAT_2 :
+ ICS_ARCIN_V6_INTRSTAT_1);
+
+ return readb(irq_port) & 1 ? ATA_DMA_INTR : 0;
+}
+
+static int icside_dma_init(struct ata_probe_ent *ae, struct expansion_card *ec)
+{
+ struct pata_icside_state *state = ae->private_data;
+ int i;
+
+ for (i = 0; i < ATA_MAX_DEVICES; i++) {
+ state->port[0].speed[i] = 480;
+ state->port[1].speed[i] = 480;
+ }
+
+ if (ec->dma != NO_DMA && !request_dma(ec->dma, DRV_NAME)) {
+ state->dma = ec->dma;
+ ae->mwdma_mask = 0x07; /* MW0..2 */
+ }
+
+ return 0;
+}
+
+
+static int pata_icside_port_start(struct ata_port *ap)
+{
+ /* No PRD to alloc */
+ return ata_pad_alloc(ap, ap->dev);
+}
+
+static struct scsi_host_template pata_icside_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = PATA_ICSIDE_MAX_SG,
+ .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
+ .emulated = ATA_SHT_EMULATED,
+ .use_clustering = ATA_SHT_USE_CLUSTERING,
+ .proc_name = DRV_NAME,
+ .dma_boundary = ~0, /* no dma boundaries */
+ .slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
+ .bios_param = ata_std_bios_param,
+};
+
+/* wish this was exported from libata-core */
+static void ata_dummy_noret(struct ata_port *port)
+{
+}
+
+/*
+ * We need to shut down unused ports to prevent spurious interrupts.
+ * FIXME: the libata core doesn't call this function for PATA interfaces.
+ */
+static void pata_icside_port_disable(struct ata_port *ap)
+{
+ struct pata_icside_state *state = ap->host->private_data;
+
+ ata_port_printk(ap, KERN_ERR, "disabling icside port\n");
+
+ ata_port_disable(ap);
+
+ state->port[ap->port_no].disabled = 1;
+
+ if (state->type == ICS_TYPE_V6) {
+ /*
+ * Disable interrupts from this port, otherwise we
+ * receive spurious interrupts from the floating
+ * interrupt line.
+ */
+ void __iomem *irq_port = state->irq_port +
+ (ap->port_no ? ICS_ARCIN_V6_INTROFFSET_2 : ICS_ARCIN_V6_INTROFFSET_1);
+ readb(irq_port);
+ }
+}
+
+static u8 pata_icside_irq_ack(struct ata_port *ap, unsigned int chk_drq)
+{
+ unsigned int bits = chk_drq ? ATA_BUSY | ATA_DRQ : ATA_BUSY;
+ u8 status;
+
+ status = ata_busy_wait(ap, bits, 1000);
+ if (status & bits)
+ if (ata_msg_err(ap))
+ printk(KERN_ERR "abnormal status 0x%X\n", status);
+
+ if (ata_msg_intr(ap))
+ printk(KERN_INFO "%s: irq ack: drv_stat 0x%X\n",
+ __FUNCTION__, status);
+
+ return status;
+}
+
+static struct ata_port_operations pata_icside_port_ops = {
+ .port_disable = pata_icside_port_disable,
+
+ .set_dmamode = pata_icside_set_dmamode,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .exec_command = ata_exec_command,
+ .check_status = ata_check_status,
+ .dev_select = ata_std_dev_select,
+
+ .bmdma_setup = pata_icside_bmdma_setup,
+ .bmdma_start = pata_icside_bmdma_start,
+
+ .data_xfer = ata_data_xfer_noirq,
+
+ /* no need to build any PRD tables for DMA */
+ .qc_prep = ata_noop_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ata_bmdma_error_handler,
+ .post_internal_cmd = pata_icside_bmdma_stop,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_dummy_noret,
+ .irq_on = ata_irq_on,
+ .irq_ack = pata_icside_irq_ack,
+
+ .port_start = pata_icside_port_start,
+
+ .bmdma_stop = pata_icside_bmdma_stop,
+ .bmdma_status = pata_icside_bmdma_status,
+};
+
+static void
+pata_icside_add_port(struct ata_probe_ent *ae, void __iomem *base,
+ const struct portinfo *info)
+{
+ struct ata_ioports *ioaddr = &ae->port[ae->n_ports++];
+ void __iomem *cmd = base + info->dataoffset;
+
+ ioaddr->cmd_addr = cmd;
+ ioaddr->data_addr = cmd + (ATA_REG_DATA << info->stepping);
+ ioaddr->error_addr = cmd + (ATA_REG_ERR << info->stepping);
+ ioaddr->feature_addr = cmd + (ATA_REG_FEATURE << info->stepping);
+ ioaddr->nsect_addr = cmd + (ATA_REG_NSECT << info->stepping);
+ ioaddr->lbal_addr = cmd + (ATA_REG_LBAL << info->stepping);
+ ioaddr->lbam_addr = cmd + (ATA_REG_LBAM << info->stepping);
+ ioaddr->lbah_addr = cmd + (ATA_REG_LBAH << info->stepping);
+ ioaddr->device_addr = cmd + (ATA_REG_DEVICE << info->stepping);
+ ioaddr->status_addr = cmd + (ATA_REG_STATUS << info->stepping);
+ ioaddr->command_addr = cmd + (ATA_REG_CMD << info->stepping);
+
+ ioaddr->ctl_addr = base + info->ctrloffset;
+ ioaddr->altstatus_addr = ioaddr->ctl_addr;
+}
+
+static int __init
+pata_icside_register_v5(struct ata_probe_ent *ae, struct expansion_card *ec)
+{
+ struct pata_icside_state *state = ae->private_data;
+ void __iomem *base;
+
+ base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
+ ecard_resource_len(ec, ECARD_RES_MEMC));
+ if (!base)
+ return -ENOMEM;
+
+ state->irq_port = base;
+
+ ec->irqaddr = base + ICS_ARCIN_V5_INTRSTAT;
+ ec->irqmask = 1;
+ ec->irq_data = state;
+ ec->ops = &pata_icside_ops_arcin_v5;
+
+ /*
+ * Be on the safe side - disable interrupts
+ */
+ ec->ops->irqdisable(ec, ec->irq);
+
+ pata_icside_add_port(ae, base, &pata_icside_portinfo_v5);
+
+ return 0;
+}
+
+static int __init
+pata_icside_register_v6(struct ata_probe_ent *ae, struct expansion_card *ec)
+{
+ struct pata_icside_state *state = ae->private_data;
+ void __iomem *ioc_base, *easi_base;
+ unsigned int sel = 0;
+ int ret;
+
+ ioc_base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
+ ecard_resource_len(ec, ECARD_RES_IOCFAST));
+ if (!ioc_base) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ easi_base = ioc_base;
+
+ if (ecard_resource_flags(ec, ECARD_RES_EASI)) {
+ easi_base = ioremap(ecard_resource_start(ec, ECARD_RES_EASI),
+ ecard_resource_len(ec, ECARD_RES_EASI));
+ if (!easi_base) {
+ ret = -ENOMEM;
+ goto unmap_slot;
+ }
+
+ /*
+ * Enable access to the EASI region.
+ */
+ sel = 1 << 5;
+ }
+
+ writeb(sel, ioc_base);
+
+ ec->irq_data = state;
+ ec->ops = &pata_icside_ops_arcin_v6;
+
+ state->irq_port = easi_base;
+ state->ioc_base = ioc_base;
+ state->port[0].port_sel = sel;
+ state->port[1].port_sel = sel | 1;
+
+ /*
+ * Be on the safe side - disable interrupts
+ */
+ ec->ops->irqdisable(ec, ec->irq);
+
+ /*
+ * Find and register the interfaces.
+ */
+ pata_icside_add_port(ae, easi_base, &pata_icside_portinfo_v6_1);
+ pata_icside_add_port(ae, easi_base, &pata_icside_portinfo_v6_2);
+
+ /*
+ * FIXME: work around libata's aversion to calling port_disable.
+ * This permanently disables interrupts on port 0 - bad luck if
+ * you have a drive on that port.
+ */
+ state->port[0].disabled = 1;
+
+ return icside_dma_init(ae, ec);
+
+ unmap_slot:
+ iounmap(ioc_base);
+ out:
+ return ret;
+}
+
+static int __devinit
+pata_icside_probe(struct expansion_card *ec, const struct ecard_id *id)
+{
+ struct pata_icside_state *state;
+ struct ata_probe_ent ae;
+ void __iomem *idmem;
+ int ret;
+
+ ret = ecard_request_resources(ec);
+ if (ret)
+ goto out;
+
+ state = kzalloc(sizeof(struct pata_icside_state), GFP_KERNEL);
+ if (!state) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ state->type = ICS_TYPE_NOTYPE;
+ state->dma = NO_DMA;
+
+ idmem = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
+ ecard_resource_len(ec, ECARD_RES_IOCFAST));
+ if (idmem) {
+ unsigned int type;
+
+ type = readb(idmem + ICS_IDENT_OFFSET) & 1;
+ type |= (readb(idmem + ICS_IDENT_OFFSET + 4) & 1) << 1;
+ type |= (readb(idmem + ICS_IDENT_OFFSET + 8) & 1) << 2;
+ type |= (readb(idmem + ICS_IDENT_OFFSET + 12) & 1) << 3;
+ iounmap(idmem);
+
+ state->type = type;
+ }
+
+ memset(&ae, 0, sizeof(ae));
+ INIT_LIST_HEAD(&ae.node);
+ ae.dev = &ec->dev;
+ ae.port_ops = &pata_icside_port_ops;
+ ae.sht = &pata_icside_sht;
+ ae.pio_mask = 0x1f;
+ ae.irq = ec->irq;
+ ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
+ ae._host_flags = ATA_HOST_SIMPLEX;
+ ae.private_data = state;
+
+ switch (state->type) {
+ case ICS_TYPE_A3IN:
+ dev_warn(&ec->dev, "A3IN unsupported\n");
+ ret = -ENODEV;
+ break;
+
+ case ICS_TYPE_A3USER:
+ dev_warn(&ec->dev, "A3USER unsupported\n");
+ ret = -ENODEV;
+ break;
+
+ case ICS_TYPE_V5:
+ ret = pata_icside_register_v5(&ae, ec);
+ break;
+
+ case ICS_TYPE_V6:
+ ret = pata_icside_register_v6(&ae, ec);
+ break;
+
+ default:
+ dev_warn(&ec->dev, "unknown interface type\n");
+ ret = -ENODEV;
+ break;
+ }
+
+ if (ret == 0)
+ ret = ata_device_add(&ae) == 0 ? -ENODEV : 0;
+
+ if (ret == 0)
+ goto out;
+
+ kfree(state);
+ release:
+ ecard_release_resources(ec);
+ out:
+ return ret;
+}
+
+static void pata_icside_shutdown(struct expansion_card *ec)
+{
+ struct ata_host *host = ecard_get_drvdata(ec);
+ unsigned long flags;
+
+ /*
+ * Disable interrupts from this card. We need to do
+ * this before disabling EASI since we may be accessing
+ * this register via that region.
+ */
+ local_irq_save(flags);
+ if (ec->ops)
+ ec->ops->irqdisable(ec, ec->irq);
+ local_irq_restore(flags);
+
+ /*
+ * Reset the ROM pointer so that we can read the ROM
+ * after a soft reboot. This also disables access to
+ * the IDE taskfile via the EASI region.
+ */
+ if (host) {
+ struct pata_icside_state *state = host->private_data;
+ if (state->ioc_base)
+ writeb(0, state->ioc_base);
+ }
+}
+
+static void __devexit pata_icside_remove(struct expansion_card *ec)
+{
+ struct ata_host *host = ecard_get_drvdata(ec);
+ struct pata_icside_state *state = host->private_data;
+
+ ata_host_detach(host);
+
+ pata_icside_shutdown(ec);
+
+ /*
+ * don't NULL out the drvdata - devres/libata wants it
+ * to free the ata_host structure.
+ */
+ ec->ops = NULL;
+ ec->irq_data = NULL;
+
+ if (state->dma != NO_DMA)
+ free_dma(state->dma);
+ if (state->ioc_base)
+ iounmap(state->ioc_base);
+ if (state->ioc_base != state->irq_port)
+ iounmap(state->irq_port);
+
+ kfree(state);
+ ecard_release_resources(ec);
+}
+
+static const struct ecard_id pata_icside_ids[] = {
+ { MANU_ICS, PROD_ICS_IDE },
+ { MANU_ICS2, PROD_ICS2_IDE },
+ { 0xffff, 0xffff }
+};
+
+static struct ecard_driver pata_icside_driver = {
+ .probe = pata_icside_probe,
+ .remove = __devexit_p(pata_icside_remove),
+ .shutdown = pata_icside_shutdown,
+ .id_table = pata_icside_ids,
+ .drv = {
+ .name = DRV_NAME,
+ },
+};
+
+static int __init pata_icside_init(void)
+{
+ return ecard_register_driver(&pata_icside_driver);
+}
+
+static void __exit pata_icside_exit(void)
+{
+ ecard_remove_driver(&pata_icside_driver);
+}
+
+MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ICS PATA driver");
+
+module_init(pata_icside_init);
+module_exit(pata_icside_exit);
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 14e83d0aac8..4443d3bb3fb 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -839,9 +839,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
{
struct pxa_i2c *i2c = &i2c_pxa;
struct resource *res;
-#ifdef CONFIG_I2C_PXA_SLAVE
struct i2c_pxa_platform_data *plat = dev->dev.platform_data;
-#endif
int ret;
int irq;
@@ -889,14 +887,14 @@ static int i2c_pxa_probe(struct platform_device *dev)
pxa_gpio_mode(GPIO117_I2CSCL_MD);
pxa_gpio_mode(GPIO118_I2CSDA_MD);
#endif
- pxa_set_cken(CKEN14_I2C, 1);
+ pxa_set_cken(CKEN_I2C, 1);
break;
#ifdef CONFIG_PXA27x
case 1:
local_irq_disable();
PCFR |= PCFR_PI2CEN;
local_irq_enable();
- pxa_set_cken(CKEN15_PWRI2C, 1);
+ pxa_set_cken(CKEN_PWRI2C, 1);
#endif
}
@@ -911,6 +909,10 @@ static int i2c_pxa_probe(struct platform_device *dev)
i2c->adap.algo_data = i2c;
i2c->adap.dev.parent = &dev->dev;
+ if (plat) {
+ i2c->adap.class = plat->class;
+ }
+
ret = i2c_add_adapter(&i2c->adap);
if (ret < 0) {
printk(KERN_INFO "I2C: Failed to add bus\n");
@@ -933,11 +935,11 @@ eadapt:
ereqirq:
switch (dev->id) {
case 0:
- pxa_set_cken(CKEN14_I2C, 0);
+ pxa_set_cken(CKEN_I2C, 0);
break;
#ifdef CONFIG_PXA27x
case 1:
- pxa_set_cken(CKEN15_PWRI2C, 0);
+ pxa_set_cken(CKEN_PWRI2C, 0);
local_irq_disable();
PCFR &= ~PCFR_PI2CEN;
local_irq_enable();
@@ -960,11 +962,11 @@ static int i2c_pxa_remove(struct platform_device *dev)
free_irq(i2c->irq, i2c);
switch (dev->id) {
case 0:
- pxa_set_cken(CKEN14_I2C, 0);
+ pxa_set_cken(CKEN_I2C, 0);
break;
#ifdef CONFIG_PXA27x
case 1:
- pxa_set_cken(CKEN15_PWRI2C, 0);
+ pxa_set_cken(CKEN_PWRI2C, 0);
local_irq_disable();
PCFR &= ~PCFR_PI2CEN;
local_irq_enable();
diff --git a/drivers/mmc/pxamci.c b/drivers/mmc/pxamci.c
index 9774fc68b61..fca894e55f4 100644
--- a/drivers/mmc/pxamci.c
+++ b/drivers/mmc/pxamci.c
@@ -369,14 +369,14 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (CLOCKRATE / clk > ios->clock)
clk <<= 1;
host->clkrt = fls(clk) - 1;
- pxa_set_cken(CKEN12_MMC, 1);
+ pxa_set_cken(CKEN_MMC, 1);
/*
* we write clkrt on the next command
*/
} else {
pxamci_stop_clock(host);
- pxa_set_cken(CKEN12_MMC, 0);
+ pxa_set_cken(CKEN_MMC, 0);
}
if (host->power_mode != ios->power_mode) {
diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c
index 2272156af31..d6d5361f093 100644
--- a/drivers/net/irda/pxaficp_ir.c
+++ b/drivers/net/irda/pxaficp_ir.c
@@ -134,7 +134,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed)
DCSR(si->rxdma) &= ~DCSR_RUN;
/* disable FICP */
ICCR0 = 0;
- pxa_set_cken(CKEN13_FICP, 0);
+ pxa_set_cken(CKEN_FICP, 0);
/* set board transceiver to SIR mode */
si->pdata->transceiver_mode(si->dev, IR_SIRMODE);
@@ -144,7 +144,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed)
pxa_gpio_mode(GPIO47_STTXD_MD);
/* enable the STUART clock */
- pxa_set_cken(CKEN5_STUART, 1);
+ pxa_set_cken(CKEN_STUART, 1);
}
/* disable STUART first */
@@ -169,7 +169,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed)
/* disable STUART */
STIER = 0;
STISR = 0;
- pxa_set_cken(CKEN5_STUART, 0);
+ pxa_set_cken(CKEN_STUART, 0);
/* disable FICP first */
ICCR0 = 0;
@@ -182,7 +182,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed)
pxa_gpio_mode(GPIO47_ICPTXD_MD);
/* enable the FICP clock */
- pxa_set_cken(CKEN13_FICP, 1);
+ pxa_set_cken(CKEN_FICP, 1);
si->speed = speed;
pxa_irda_fir_dma_rx_start(si);
@@ -593,7 +593,7 @@ static void pxa_irda_shutdown(struct pxa_irda *si)
/* disable STUART SIR mode */
STISR = 0;
/* disable the STUART clock */
- pxa_set_cken(CKEN5_STUART, 0);
+ pxa_set_cken(CKEN_STUART, 0);
/* disable DMA */
DCSR(si->txdma) &= ~DCSR_RUN;
@@ -601,7 +601,7 @@ static void pxa_irda_shutdown(struct pxa_irda *si)
/* disable FICP */
ICCR0 = 0;
/* disable the FICP clock */
- pxa_set_cken(CKEN13_FICP, 0);
+ pxa_set_cken(CKEN_FICP, 0);
DRCMR17 = 0;
DRCMR18 = 0;
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index f69bd097166..1a9a24b8263 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -48,6 +48,7 @@
#include <linux/serial.h>
#include <linux/amba/bus.h>
#include <linux/amba/serial.h>
+#include <linux/clk.h>
#include <asm/io.h>
@@ -70,6 +71,7 @@
*/
struct uart_amba_port {
struct uart_port port;
+ struct clk *clk;
struct amba_device *dev;
struct amba_pl010_data *data;
unsigned int old_status;
@@ -77,73 +79,77 @@ struct uart_amba_port {
static void pl010_stop_tx(struct uart_port *port)
{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
unsigned int cr;
- cr = readb(port->membase + UART010_CR);
+ cr = readb(uap->port.membase + UART010_CR);
cr &= ~UART010_CR_TIE;
- writel(cr, port->membase + UART010_CR);
+ writel(cr, uap->port.membase + UART010_CR);
}
static void pl010_start_tx(struct uart_port *port)
{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
unsigned int cr;
- cr = readb(port->membase + UART010_CR);
+ cr = readb(uap->port.membase + UART010_CR);
cr |= UART010_CR_TIE;
- writel(cr, port->membase + UART010_CR);
+ writel(cr, uap->port.membase + UART010_CR);
}
static void pl010_stop_rx(struct uart_port *port)
{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
unsigned int cr;
- cr = readb(port->membase + UART010_CR);
+ cr = readb(uap->port.membase + UART010_CR);
cr &= ~(UART010_CR_RIE | UART010_CR_RTIE);
- writel(cr, port->membase + UART010_CR);
+ writel(cr, uap->port.membase + UART010_CR);
}
static void pl010_enable_ms(struct uart_port *port)
{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
unsigned int cr;
- cr = readb(port->membase + UART010_CR);
+ cr = readb(uap->port.membase + UART010_CR);
cr |= UART010_CR_MSIE;
- writel(cr, port->membase + UART010_CR);
+ writel(cr, uap->port.membase + UART010_CR);
}
-static void pl010_rx_chars(struct uart_port *port)
+static void pl010_rx_chars(struct uart_amba_port *uap)
{
- struct tty_struct *tty = port->info->tty;
+ struct tty_struct *tty = uap->port.info->tty;
unsigned int status, ch, flag, rsr, max_count = 256;
- status = readb(port->membase + UART01x_FR);
+ status = readb(uap->port.membase + UART01x_FR);
while (UART_RX_DATA(status) && max_count--) {
- ch = readb(port->membase + UART01x_DR);
+ ch = readb(uap->port.membase + UART01x_DR);
flag = TTY_NORMAL;
- port->icount.rx++;
+ uap->port.icount.rx++;
/*
* Note that the error handling code is
* out of the main execution path
*/
- rsr = readb(port->membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
+ rsr = readb(uap->port.membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
if (unlikely(rsr & UART01x_RSR_ANY)) {
- writel(0, port->membase + UART01x_ECR);
+ writel(0, uap->port.membase + UART01x_ECR);
if (rsr & UART01x_RSR_BE) {
rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE);
- port->icount.brk++;
- if (uart_handle_break(port))
+ uap->port.icount.brk++;
+ if (uart_handle_break(&uap->port))
goto ignore_char;
} else if (rsr & UART01x_RSR_PE)
- port->icount.parity++;
+ uap->port.icount.parity++;
else if (rsr & UART01x_RSR_FE)
- port->icount.frame++;
+ uap->port.icount.frame++;
if (rsr & UART01x_RSR_OE)
- port->icount.overrun++;
+ uap->port.icount.overrun++;
- rsr &= port->read_status_mask;
+ rsr &= uap->port.read_status_mask;
if (rsr & UART01x_RSR_BE)
flag = TTY_BREAK;
@@ -153,53 +159,52 @@ static void pl010_rx_chars(struct uart_port *port)
flag = TTY_FRAME;
}
- if (uart_handle_sysrq_char(port, ch))
+ if (uart_handle_sysrq_char(&uap->port, ch))
goto ignore_char;
- uart_insert_char(port, rsr, UART01x_RSR_OE, ch, flag);
+ uart_insert_char(&uap->port, rsr, UART01x_RSR_OE, ch, flag);
ignore_char:
- status = readb(port->membase + UART01x_FR);
+ status = readb(uap->port.membase + UART01x_FR);
}
tty_flip_buffer_push(tty);
return;
}
-static void pl010_tx_chars(struct uart_port *port)
+static void pl010_tx_chars(struct uart_amba_port *uap)
{
- struct circ_buf *xmit = &port->info->xmit;
+ struct circ_buf *xmit = &uap->port.info->xmit;
int count;
- if (port->x_char) {
- writel(port->x_char, port->membase + UART01x_DR);
- port->icount.tx++;
- port->x_char = 0;
+ if (uap->port.x_char) {
+ writel(uap->port.x_char, uap->port.membase + UART01x_DR);
+ uap->port.icount.tx++;
+ uap->port.x_char = 0;
return;
}
- if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- pl010_stop_tx(port);
+ if (uart_circ_empty(xmit) || uart_tx_stopped(&uap->port)) {
+ pl010_stop_tx(&uap->port);
return;
}
- count = port->fifosize >> 1;
+ count = uap->port.fifosize >> 1;
do {
- writel(xmit->buf[xmit->tail], port->membase + UART01x_DR);
+ writel(xmit->buf[xmit->tail], uap->port.membase + UART01x_DR);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
- port->icount.tx++;
+ uap->port.icount.tx++;
if (uart_circ_empty(xmit))
break;
} while (--count > 0);
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
- uart_write_wakeup(port);
+ uart_write_wakeup(&uap->port);
if (uart_circ_empty(xmit))
- pl010_stop_tx(port);
+ pl010_stop_tx(&uap->port);
}
-static void pl010_modem_status(struct uart_port *port)
+static void pl010_modem_status(struct uart_amba_port *uap)
{
- struct uart_amba_port *uap = (struct uart_amba_port *)port;
unsigned int status, delta;
writel(0, uap->port.membase + UART010_ICR);
@@ -226,47 +231,50 @@ static void pl010_modem_status(struct uart_port *port)
static irqreturn_t pl010_int(int irq, void *dev_id)
{
- struct uart_port *port = dev_id;
+ struct uart_amba_port *uap = dev_id;
unsigned int status, pass_counter = AMBA_ISR_PASS_LIMIT;
int handled = 0;
- spin_lock(&port->lock);
+ spin_lock(&uap->port.lock);
- status = readb(port->membase + UART010_IIR);
+ status = readb(uap->port.membase + UART010_IIR);
if (status) {
do {
if (status & (UART010_IIR_RTIS | UART010_IIR_RIS))
- pl010_rx_chars(port);
+ pl010_rx_chars(uap);
if (status & UART010_IIR_MIS)
- pl010_modem_status(port);
+ pl010_modem_status(uap);
if (status & UART010_IIR_TIS)
- pl010_tx_chars(port);
+ pl010_tx_chars(uap);
if (pass_counter-- == 0)
break;
- status = readb(port->membase + UART010_IIR);
+ status = readb(uap->port.membase + UART010_IIR);
} while (status & (UART010_IIR_RTIS | UART010_IIR_RIS |
UART010_IIR_TIS));
handled = 1;
}
- spin_unlock(&port->lock);
+ spin_unlock(&uap->port.lock);
return IRQ_RETVAL(handled);
}
static unsigned int pl010_tx_empty(struct uart_port *port)
{
- return readb(port->membase + UART01x_FR) & UART01x_FR_BUSY ? 0 : TIOCSER_TEMT;
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
+ unsigned int status = readb(uap->port.membase + UART01x_FR);
+ return status & UART01x_FR_BUSY ? 0 : TIOCSER_TEMT;
}
static unsigned int pl010_get_mctrl(struct uart_port *port)
{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
unsigned int result = 0;
unsigned int status;
- status = readb(port->membase + UART01x_FR);
+ status = readb(uap->port.membase + UART01x_FR);
if (status & UART01x_FR_DCD)
result |= TIOCM_CAR;
if (status & UART01x_FR_DSR)
@@ -287,17 +295,18 @@ static void pl010_set_mctrl(struct uart_port *port, unsigned int mctrl)
static void pl010_break_ctl(struct uart_port *port, int break_state)
{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
unsigned long flags;
unsigned int lcr_h;
- spin_lock_irqsave(&port->lock, flags);
- lcr_h = readb(port->membase + UART010_LCRH);
+ spin_lock_irqsave(&uap->port.lock, flags);
+ lcr_h = readb(uap->port.membase + UART010_LCRH);
if (break_state == -1)
lcr_h |= UART01x_LCRH_BRK;
else
lcr_h &= ~UART01x_LCRH_BRK;
- writel(lcr_h, port->membase + UART010_LCRH);
- spin_unlock_irqrestore(&port->lock, flags);
+ writel(lcr_h, uap->port.membase + UART010_LCRH);
+ spin_unlock_irqrestore(&uap->port.lock, flags);
}
static int pl010_startup(struct uart_port *port)
@@ -306,48 +315,70 @@ static int pl010_startup(struct uart_port *port)
int retval;
/*
+ * Try to enable the clock producer.
+ */
+ retval = clk_enable(uap->clk);
+ if (retval)
+ goto out;
+
+ uap->port.uartclk = clk_get_rate(uap->clk);
+
+ /*
* Allocate the IRQ
*/
- retval = request_irq(port->irq, pl010_int, 0, "uart-pl010", port);
+ retval = request_irq(uap->port.irq, pl010_int, 0, "uart-pl010", uap);
if (retval)
- return retval;
+ goto clk_dis;
/*
* initialise the old status of the modem signals
*/
- uap->old_status = readb(port->membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
+ uap->old_status = readb(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
/*
* Finally, enable interrupts
*/
writel(UART01x_CR_UARTEN | UART010_CR_RIE | UART010_CR_RTIE,
- port->membase + UART010_CR);
+ uap->port.membase + UART010_CR);
return 0;
+
+ clk_dis:
+ clk_disable(uap->clk);
+ out:
+ return retval;
}
static void pl010_shutdown(struct uart_port *port)
{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
+
/*
* Free the interrupt
*/
- free_irq(port->irq, port);
+ free_irq(uap->port.irq, uap);
/*
* disable all interrupts, disable the port
*/
- writel(0, port->membase + UART010_CR);
+ writel(0, uap->port.membase + UART010_CR);
/* disable break condition and fifos */
- writel(readb(port->membase + UART010_LCRH) &
+ writel(readb(uap->port.membase + UART010_LCRH) &
~(UART01x_LCRH_BRK | UART01x_LCRH_FEN),
- port->membase + UART010_LCRH);
+ uap->port.membase + UART010_LCRH);
+
+ /*
+ * Shut down the clock producer
+ */
+ clk_disable(uap->clk);
}
static void
pl010_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
unsigned int lcr_h, old_cr;
unsigned long flags;
unsigned int baud, quot;
@@ -355,7 +386,7 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios,
/*
* Ask the core to calculate the divisor for us.
*/
- baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
+ baud = uart_get_baud_rate(port, termios, old, 0, uap->port.uartclk/16);
quot = uart_get_divisor(port, baud);
switch (termios->c_cflag & CSIZE) {
@@ -379,66 +410,66 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios,
if (!(termios->c_cflag & PARODD))
lcr_h |= UART01x_LCRH_EPS;
}
- if (port->fifosize > 1)
+ if (uap->port.fifosize > 1)
lcr_h |= UART01x_LCRH_FEN;
- spin_lock_irqsave(&port->lock, flags);
+ spin_lock_irqsave(&uap->port.lock, flags);
/*
* Update the per-port timeout.
*/
uart_update_timeout(port, termios->c_cflag, baud);
- port->read_status_mask = UART01x_RSR_OE;
+ uap->port.read_status_mask = UART01x_RSR_OE;
if (termios->c_iflag & INPCK)
- port->read_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
+ uap->port.read_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
if (termios->c_iflag & (BRKINT | PARMRK))
- port->read_status_mask |= UART01x_RSR_BE;
+ uap->port.read_status_mask |= UART01x_RSR_BE;
/*
* Characters to ignore
*/
- port->ignore_status_mask = 0;
+ uap->port.ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
- port->ignore_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
+ uap->port.ignore_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
if (termios->c_iflag & IGNBRK) {
- port->ignore_status_mask |= UART01x_RSR_BE;
+ uap->port.ignore_status_mask |= UART01x_RSR_BE;
/*
* If we're ignoring parity and break indicators,
* ignore overruns too (for real raw support).
*/
if (termios->c_iflag & IGNPAR)
- port->ignore_status_mask |= UART01x_RSR_OE;
+ uap->port.ignore_status_mask |= UART01x_RSR_OE;
}
/*
* Ignore all characters if CREAD is not set.
*/
if ((termios->c_cflag & CREAD) == 0)
- port->ignore_status_mask |= UART_DUMMY_RSR_RX;
+ uap->port.ignore_status_mask |= UART_DUMMY_RSR_RX;
/* first, disable everything */
- old_cr = readb(port->membase + UART010_CR) & ~UART010_CR_MSIE;
+ old_cr = readb(uap->port.membase + UART010_CR) & ~UART010_CR_MSIE;
if (UART_ENABLE_MS(port, termios->c_cflag))
old_cr |= UART010_CR_MSIE;
- writel(0, port->membase + UART010_CR);
+ writel(0, uap->port.membase + UART010_CR);
/* Set baud rate */
quot -= 1;
- writel((quot & 0xf00) >> 8, port->membase + UART010_LCRM);
- writel(quot & 0xff, port->membase + UART010_LCRL);
+ writel((quot & 0xf00) >> 8, uap->port.membase + UART010_LCRM);
+ writel(quot & 0xff, uap->port.membase + UART010_LCRL);
/*
* ----------v----------v----------v----------v-----
* NOTE: MUST BE WRITTEN AFTER UARTLCR_M & UARTLCR_L
* ----------^----------^----------^----------^-----
*/
- writel(lcr_h, port->membase + UART010_LCRH);
- writel(old_cr, port->membase + UART010_CR);
+ writel(lcr_h, uap->port.membase + UART010_LCRH);
+ writel(old_cr, uap->port.membase + UART010_CR);
- spin_unlock_irqrestore(&port->lock, flags);
+ spin_unlock_irqrestore(&uap->port.lock, flags);
}
static const char *pl010_type(struct uart_port *port)
@@ -514,47 +545,52 @@ static struct uart_amba_port *amba_ports[UART_NR];
static void pl010_console_putchar(struct uart_port *port, int ch)
{
+ struct uart_amba_port *uap = (struct uart_amba_port *)port;
unsigned int status;
do {
- status = readb(port->membase + UART01x_FR);
+ status = readb(uap->port.membase + UART01x_FR);
barrier();
} while (!UART_TX_READY(status));
- writel(ch, port->membase + UART01x_DR);
+ writel(ch, uap->port.membase + UART01x_DR);
}
static void
pl010_console_write(struct console *co, const char *s, unsigned int count)
{
- struct uart_port *port = &amba_ports[co->index]->port;
+ struct uart_amba_port *uap = amba_ports[co->index];
unsigned int status, old_cr;
+ clk_enable(uap->clk);
+
/*
* First save the CR then disable the interrupts
*/
- old_cr = readb(port->membase + UART010_CR);
- writel(UART01x_CR_UARTEN, port->membase + UART010_CR);
+ old_cr = readb(uap->port.membase + UART010_CR);
+ writel(UART01x_CR_UARTEN, uap->port.membase + UART010_CR);
- uart_console_write(port, s, count, pl010_console_putchar);
+ uart_console_write(&uap->port, s, count, pl010_console_putchar);
/*
* Finally, wait for transmitter to become empty
* and restore the TCR
*/
do {
- status = readb(port->membase + UART01x_FR);
+ status = readb(uap->port.membase + UART01x_FR);
barrier();
} while (status & UART01x_FR_BUSY);
- writel(old_cr, port->membase + UART010_CR);
+ writel(old_cr, uap->port.membase + UART010_CR);
+
+ clk_disable(uap->clk);
}
static void __init
-pl010_console_get_options(struct uart_port *port, int *baud,
+pl010_console_get_options(struct uart_amba_port *uap, int *baud,
int *parity, int *bits)
{
- if (readb(port->membase + UART010_CR) & UART01x_CR_UARTEN) {
+ if (readb(uap->port.membase + UART010_CR) & UART01x_CR_UARTEN) {
unsigned int lcr_h, quot;
- lcr_h = readb(port->membase + UART010_LCRH);
+ lcr_h = readb(uap->port.membase + UART010_LCRH);
*parity = 'n';
if (lcr_h & UART01x_LCRH_PEN) {
@@ -569,14 +605,15 @@ pl010_console_get_options(struct uart_port *port, int *baud,
else
*bits = 8;
- quot = readb(port->membase + UART010_LCRL) | readb(port->membase + UART010_LCRM) << 8;
- *baud = port->uartclk / (16 * (quot + 1));
+ quot = readb(uap->port.membase + UART010_LCRL) |
+ readb(uap->port.membase + UART010_LCRM) << 8;
+ *baud = uap->port.uartclk / (16 * (quot + 1));
}
}
static int __init pl010_console_setup(struct console *co, char *options)
{
- struct uart_port *port;
+ struct uart_amba_port *uap;
int baud = 38400;
int bits = 8;
int parity = 'n';
@@ -589,16 +626,18 @@ static int __init pl010_console_setup(struct console *co, char *options)
*/
if (co->index >= UART_NR)
co->index = 0;
- if (!amba_ports[co->index])
+ uap = amba_ports[co->index];
+ if (!uap)
return -ENODEV;
- port = &amba_ports[co->index]->port;
+
+ uap->port.uartclk = clk_get_rate(uap->clk);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
else
- pl010_console_get_options(port, &baud, &parity, &bits);
+ pl010_console_get_options(uap, &baud, &parity, &bits);
- return uart_set_options(port, co, baud, parity, bits, flow);
+ return uart_set_options(&uap->port, co, baud, parity, bits, flow);
}
static struct uart_driver amba_reg;
@@ -629,7 +668,7 @@ static struct uart_driver amba_reg = {
static int pl010_probe(struct amba_device *dev, void *id)
{
- struct uart_amba_port *port;
+ struct uart_amba_port *uap;
void __iomem *base;
int i, ret;
@@ -642,8 +681,8 @@ static int pl010_probe(struct amba_device *dev, void *id)
goto out;
}
- port = kzalloc(sizeof(struct uart_amba_port), GFP_KERNEL);
- if (!port) {
+ uap = kzalloc(sizeof(struct uart_amba_port), GFP_KERNEL);
+ if (!uap) {
ret = -ENOMEM;
goto out;
}
@@ -654,51 +693,57 @@ static int pl010_probe(struct amba_device *dev, void *id)
goto free;
}
- port->port.dev = &dev->dev;
- port->port.mapbase = dev->res.start;
- port->port.membase = base;
- port->port.iotype = UPIO_MEM;
- port->port.irq = dev->irq[0];
- port->port.uartclk = 14745600;
- port->port.fifosize = 16;
- port->port.ops = &amba_pl010_pops;
- port->port.flags = UPF_BOOT_AUTOCONF;
- port->port.line = i;
- port->dev = dev;
- port->data = dev->dev.platform_data;
-
- amba_ports[i] = port;
-
- amba_set_drvdata(dev, port);
- ret = uart_add_one_port(&amba_reg, &port->port);
+ uap->clk = clk_get(&dev->dev, "UARTCLK");
+ if (IS_ERR(uap->clk)) {
+ ret = PTR_ERR(uap->clk);
+ goto unmap;
+ }
+
+ uap->port.dev = &dev->dev;
+ uap->port.mapbase = dev->res.start;
+ uap->port.membase = base;
+ uap->port.iotype = UPIO_MEM;
+ uap->port.irq = dev->irq[0];
+ uap->port.fifosize = 16;
+ uap->port.ops = &amba_pl010_pops;
+ uap->port.flags = UPF_BOOT_AUTOCONF;
+ uap->port.line = i;
+ uap->dev = dev;
+ uap->data = dev->dev.platform_data;
+
+ amba_ports[i] = uap;
+
+ amba_set_drvdata(dev, uap);
+ ret = uart_add_one_port(&amba_reg, &uap->port);
if (ret) {
amba_set_drvdata(dev, NULL);
amba_ports[i] = NULL;
+ clk_put(uap->clk);
+ unmap:
iounmap(base);
free:
- kfree(port);
+ kfree(uap);
}
-
out:
return ret;
}
static int pl010_remove(struct amba_device *dev)
{
- struct uart_amba_port *port = amba_get_drvdata(dev);
+ struct uart_amba_port *uap = amba_get_drvdata(dev);
int i;
amba_set_drvdata(dev, NULL);
- uart_remove_one_port(&amba_reg, &port->port);
+ uart_remove_one_port(&amba_reg, &uap->port);
for (i = 0; i < ARRAY_SIZE(amba_ports); i++)
- if (amba_ports[i] == port)
+ if (amba_ports[i] == uap)
amba_ports[i] = NULL;
- iounmap(port->port.membase);
- kfree(port);
-
+ iounmap(uap->port.membase);
+ clk_put(uap->clk);
+ kfree(uap);
return 0;
}
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 935f48fa501..3320bcd92c0 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -484,11 +484,16 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios * termios,
unsigned long flags;
unsigned int mode, imr, quot, baud;
+ /* Get current mode register */
+ mode = UART_GET_MR(port) & ~(ATMEL_US_USCLKS | ATMEL_US_CHRL | ATMEL_US_NBSTOP | ATMEL_US_PAR);
+
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
quot = uart_get_divisor(port, baud);
- /* Get current mode register */
- mode = UART_GET_MR(port) & ~(ATMEL_US_CHRL | ATMEL_US_NBSTOP | ATMEL_US_PAR);
+ if (quot > 65535) { /* BRGR is 16-bit, so switch to slower clock */
+ quot /= 8;
+ mode |= ATMEL_US_USCLKS_MCK_DIV8;
+ }
/* byte size */
switch (termios->c_cflag & CSIZE) {
diff --git a/drivers/serial/atmel_serial.h b/drivers/serial/atmel_serial.h
index 11b44360e10..e0141776517 100644
--- a/drivers/serial/atmel_serial.h
+++ b/drivers/serial/atmel_serial.h
@@ -46,6 +46,9 @@
#define ATMEL_US_USMODE_ISO7816_T1 6
#define ATMEL_US_USMODE_IRDA 8
#define ATMEL_US_USCLKS (3 << 4) /* Clock Selection */
+#define ATMEL_US_USCLKS_MCK (0 << 4)
+#define ATMEL_US_USCLKS_MCK_DIV8 (1 << 4)
+#define ATMEL_US_USCLKS_SCK (3 << 4)
#define ATMEL_US_CHRL (3 << 6) /* Character Length */
#define ATMEL_US_CHRL_5 (0 << 6)
#define ATMEL_US_CHRL_6 (1 << 6)
diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c
index d403aaa5509..e9c6cb391a2 100644
--- a/drivers/serial/pxa.c
+++ b/drivers/serial/pxa.c
@@ -717,7 +717,7 @@ struct uart_ops serial_pxa_pops = {
static struct uart_pxa_port serial_pxa_ports[] = {
{ /* FFUART */
.name = "FFUART",
- .cken = CKEN6_FFUART,
+ .cken = CKEN_FFUART,
.port = {
.type = PORT_PXA,
.iotype = UPIO_MEM,
@@ -731,7 +731,7 @@ static struct uart_pxa_port serial_pxa_ports[] = {
},
}, { /* BTUART */
.name = "BTUART",
- .cken = CKEN7_BTUART,
+ .cken = CKEN_BTUART,
.port = {
.type = PORT_PXA,
.iotype = UPIO_MEM,
@@ -745,7 +745,7 @@ static struct uart_pxa_port serial_pxa_ports[] = {
},
}, { /* STUART */
.name = "STUART",
- .cken = CKEN5_STUART,
+ .cken = CKEN_STUART,
.port = {
.type = PORT_PXA,
.iotype = UPIO_MEM,
@@ -759,7 +759,7 @@ static struct uart_pxa_port serial_pxa_ports[] = {
},
}, { /* HWUART */
.name = "HWUART",
- .cken = CKEN4_HWUART,
+ .cken = CKEN_HWUART,
.port = {
.type = PORT_PXA,
.iotype = UPIO_MEM,
diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c
index f01890dc875..018b0d65765 100644
--- a/drivers/usb/gadget/pxa2xx_udc.c
+++ b/drivers/usb/gadget/pxa2xx_udc.c
@@ -1497,7 +1497,7 @@ static void udc_disable(struct pxa2xx_udc *dev)
#ifdef CONFIG_ARCH_PXA
/* Disable clock for USB device */
- pxa_set_cken(CKEN11_USB, 0);
+ pxa_set_cken(CKEN_USB, 0);
#endif
ep0_idle (dev);
@@ -1543,7 +1543,7 @@ static void udc_enable (struct pxa2xx_udc *dev)
#ifdef CONFIG_ARCH_PXA
/* Enable clock for USB device */
- pxa_set_cken(CKEN11_USB, 1);
+ pxa_set_cken(CKEN_USB, 1);
udelay(5);
#endif
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index f1563dc319d..23d2fe5a62f 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -80,7 +80,7 @@ static int pxa27x_start_hc(struct device *dev)
inf = dev->platform_data;
- pxa_set_cken(CKEN10_USBHOST, 1);
+ pxa_set_cken(CKEN_USBHOST, 1);
UHCHR |= UHCHR_FHR;
udelay(11);
@@ -123,7 +123,7 @@ static void pxa27x_stop_hc(struct device *dev)
UHCCOMS |= 1;
udelay(10);
- pxa_set_cken(CKEN10_USBHOST, 0);
+ pxa_set_cken(CKEN_USBHOST, 0);
}
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index b4947c81070..0b195f33f84 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -803,7 +803,7 @@ static void pxafb_enable_controller(struct pxafb_info *fbi)
pr_debug("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3);
/* enable LCD controller clock */
- pxa_set_cken(CKEN16_LCD, 1);
+ pxa_set_cken(CKEN_LCD, 1);
/* Sequence from 11.7.10 */
LCCR3 = fbi->reg_lccr3;
@@ -840,7 +840,7 @@ static void pxafb_disable_controller(struct pxafb_info *fbi)
remove_wait_queue(&fbi->ctrlr_wait, &wait);
/* disable LCD controller clock */
- pxa_set_cken(CKEN16_LCD, 0);
+ pxa_set_cken(CKEN_LCD, 0);
}
/*
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-06 06:34:41 +0000