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Diffstat (limited to 'arch/mips/txx9/generic/setup.c')
-rw-r--r--arch/mips/txx9/generic/setup.c175
1 files changed, 175 insertions, 0 deletions
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 8a266c6a3f5..3b7d77d61ce 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -24,6 +24,7 @@
#include <linux/serial_core.h>
#include <linux/mtd/physmap.h>
#include <linux/leds.h>
+#include <linux/sysdev.h>
#include <asm/bootinfo.h>
#include <asm/time.h>
#include <asm/reboot.h>
@@ -33,6 +34,7 @@
#include <asm/txx9/pci.h>
#include <asm/txx9tmr.h>
#include <asm/txx9/ndfmc.h>
+#include <asm/txx9/dmac.h>
#ifdef CONFIG_CPU_TX49XX
#include <asm/txx9/tx4938.h>
#endif
@@ -821,3 +823,176 @@ void __init txx9_iocled_init(unsigned long baseaddr,
{
}
#endif /* CONFIG_LEDS_GPIO */
+
+void __init txx9_dmac_init(int id, unsigned long baseaddr, int irq,
+ const struct txx9dmac_platform_data *pdata)
+{
+#if defined(CONFIG_TXX9_DMAC) || defined(CONFIG_TXX9_DMAC_MODULE)
+ struct resource res[] = {
+ {
+ .start = baseaddr,
+ .end = baseaddr + 0x800 - 1,
+ .flags = IORESOURCE_MEM,
+#ifndef CONFIG_MACH_TX49XX
+ }, {
+ .start = irq,
+ .flags = IORESOURCE_IRQ,
+#endif
+ }
+ };
+#ifdef CONFIG_MACH_TX49XX
+ struct resource chan_res[] = {
+ {
+ .flags = IORESOURCE_IRQ,
+ }
+ };
+#endif
+ struct platform_device *pdev = platform_device_alloc("txx9dmac", id);
+ struct txx9dmac_chan_platform_data cpdata;
+ int i;
+
+ if (!pdev ||
+ platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
+ platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
+ platform_device_add(pdev)) {
+ platform_device_put(pdev);
+ return;
+ }
+ memset(&cpdata, 0, sizeof(cpdata));
+ cpdata.dmac_dev = pdev;
+ for (i = 0; i < TXX9_DMA_MAX_NR_CHANNELS; i++) {
+#ifdef CONFIG_MACH_TX49XX
+ chan_res[0].start = irq + i;
+#endif
+ pdev = platform_device_alloc("txx9dmac-chan",
+ id * TXX9_DMA_MAX_NR_CHANNELS + i);
+ if (!pdev ||
+#ifdef CONFIG_MACH_TX49XX
+ platform_device_add_resources(pdev, chan_res,
+ ARRAY_SIZE(chan_res)) ||
+#endif
+ platform_device_add_data(pdev, &cpdata, sizeof(cpdata)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+ }
+#endif
+}
+
+void __init txx9_aclc_init(unsigned long baseaddr, int irq,
+ unsigned int dmac_id,
+ unsigned int dma_chan_out,
+ unsigned int dma_chan_in)
+{
+#if defined(CONFIG_SND_SOC_TXX9ACLC) || \
+ defined(CONFIG_SND_SOC_TXX9ACLC_MODULE)
+ unsigned int dma_base = dmac_id * TXX9_DMA_MAX_NR_CHANNELS;
+ struct resource res[] = {
+ {
+ .start = baseaddr,
+ .end = baseaddr + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = irq,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ .name = "txx9dmac-chan",
+ .start = dma_base + dma_chan_out,
+ .flags = IORESOURCE_DMA,
+ }, {
+ .name = "txx9dmac-chan",
+ .start = dma_base + dma_chan_in,
+ .flags = IORESOURCE_DMA,
+ }
+ };
+ struct platform_device *pdev =
+ platform_device_alloc("txx9aclc-ac97", -1);
+
+ if (!pdev ||
+ platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+#endif
+}
+
+static struct sysdev_class txx9_sramc_sysdev_class;
+
+struct txx9_sramc_sysdev {
+ struct sys_device dev;
+ struct bin_attribute bindata_attr;
+ void __iomem *base;
+};
+
+static ssize_t txx9_sram_read(struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t pos, size_t size)
+{
+ struct txx9_sramc_sysdev *dev = bin_attr->private;
+ size_t ramsize = bin_attr->size;
+
+ if (pos >= ramsize)
+ return 0;
+ if (pos + size > ramsize)
+ size = ramsize - pos;
+ memcpy_fromio(buf, dev->base + pos, size);
+ return size;
+}
+
+static ssize_t txx9_sram_write(struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t pos, size_t size)
+{
+ struct txx9_sramc_sysdev *dev = bin_attr->private;
+ size_t ramsize = bin_attr->size;
+
+ if (pos >= ramsize)
+ return 0;
+ if (pos + size > ramsize)
+ size = ramsize - pos;
+ memcpy_toio(dev->base + pos, buf, size);
+ return size;
+}
+
+void __init txx9_sramc_init(struct resource *r)
+{
+ struct txx9_sramc_sysdev *dev;
+ size_t size;
+ int err;
+
+ if (!txx9_sramc_sysdev_class.name) {
+ txx9_sramc_sysdev_class.name = "txx9_sram";
+ err = sysdev_class_register(&txx9_sramc_sysdev_class);
+ if (err) {
+ txx9_sramc_sysdev_class.name = NULL;
+ return;
+ }
+ }
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return;
+ size = resource_size(r);
+ dev->base = ioremap(r->start, size);
+ if (!dev->base)
+ goto exit;
+ dev->dev.cls = &txx9_sramc_sysdev_class;
+ dev->bindata_attr.attr.name = "bindata";
+ dev->bindata_attr.attr.mode = S_IRUSR | S_IWUSR;
+ dev->bindata_attr.read = txx9_sram_read;
+ dev->bindata_attr.write = txx9_sram_write;
+ dev->bindata_attr.size = size;
+ dev->bindata_attr.private = dev;
+ err = sysdev_register(&dev->dev);
+ if (err)
+ goto exit;
+ err = sysfs_create_bin_file(&dev->dev.kobj, &dev->bindata_attr);
+ if (err) {
+ sysdev_unregister(&dev->dev);
+ goto exit;
+ }
+ return;
+exit:
+ if (dev) {
+ if (dev->base)
+ iounmap(dev->base);
+ kfree(dev);
+ }
+}