aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/usb/musb/Kconfig6
-rw-r--r--drivers/usb/musb/blackfin.c24
-rw-r--r--drivers/usb/musb/cppi_dma.c27
-rw-r--r--drivers/usb/musb/musb_core.c2
-rw-r--r--drivers/usb/musb/musb_core.h5
-rw-r--r--drivers/usb/musb/musb_gadget.c4
-rw-r--r--drivers/usb/musb/musbhsdma.c8
-rw-r--r--drivers/usb/musb/ux500.c2
8 files changed, 62 insertions, 16 deletions
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 4cbb7e4b368..74073b363c3 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -14,7 +14,7 @@ config USB_MUSB_HDRC
select TWL4030_USB if MACH_OMAP_3430SDP
select TWL6030_USB if MACH_OMAP_4430SDP || MACH_OMAP4_PANDA
select USB_OTG_UTILS
- tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
+ bool 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
help
Say Y here if your system has a dual role high speed USB
controller based on the Mentor Graphics silicon IP. Then
@@ -30,8 +30,8 @@ config USB_MUSB_HDRC
If you do not know what this is, please say N.
- To compile this driver as a module, choose M here; the
- module will be called "musb-hdrc".
+# To compile this driver as a module, choose M here; the
+# module will be called "musb-hdrc".
choice
prompt "Platform Glue Layer"
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 52312e8af21..8e2a1ff8a35 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -21,6 +21,7 @@
#include <asm/cacheflush.h>
#include "musb_core.h"
+#include "musbhsdma.h"
#include "blackfin.h"
struct bfin_glue {
@@ -332,6 +333,27 @@ static int bfin_musb_set_mode(struct musb *musb, u8 musb_mode)
return -EIO;
}
+static int bfin_musb_adjust_channel_params(struct dma_channel *channel,
+ u16 packet_sz, u8 *mode,
+ dma_addr_t *dma_addr, u32 *len)
+{
+ struct musb_dma_channel *musb_channel = channel->private_data;
+
+ /*
+ * Anomaly 05000450 might cause data corruption when using DMA
+ * MODE 1 transmits with short packet. So to work around this,
+ * we truncate all MODE 1 transfers down to a multiple of the
+ * max packet size, and then do the last short packet transfer
+ * (if there is any) using MODE 0.
+ */
+ if (ANOMALY_05000450) {
+ if (musb_channel->transmit && *mode == 1)
+ *len = *len - (*len % packet_sz);
+ }
+
+ return 0;
+}
+
static void bfin_musb_reg_init(struct musb *musb)
{
if (ANOMALY_05000346) {
@@ -430,6 +452,8 @@ static const struct musb_platform_ops bfin_ops = {
.vbus_status = bfin_musb_vbus_status,
.set_vbus = bfin_musb_set_vbus,
+
+ .adjust_channel_params = bfin_musb_adjust_channel_params,
};
static u64 bfin_dmamask = DMA_BIT_MASK(32);
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index de55a3c3259..ab434fbd8c3 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -597,12 +597,12 @@ cppi_next_tx_segment(struct musb *musb, struct cppi_channel *tx)
length = min(n_bds * maxpacket, length);
}
- DBG(4, "TX DMA%d, pktSz %d %s bds %d dma 0x%x len %u\n",
+ DBG(4, "TX DMA%d, pktSz %d %s bds %d dma 0x%llx len %u\n",
tx->index,
maxpacket,
rndis ? "rndis" : "transparent",
n_bds,
- addr, length);
+ (unsigned long long)addr, length);
cppi_rndis_update(tx, 0, musb->ctrl_base, rndis);
@@ -820,7 +820,7 @@ cppi_next_rx_segment(struct musb *musb, struct cppi_channel *rx, int onepacket)
length = min(n_bds * maxpacket, length);
DBG(4, "RX DMA%d seg, maxp %d %s bds %d (cnt %d) "
- "dma 0x%x len %u %u/%u\n",
+ "dma 0x%llx len %u %u/%u\n",
rx->index, maxpacket,
onepacket
? (is_rndis ? "rndis" : "onepacket")
@@ -829,7 +829,8 @@ cppi_next_rx_segment(struct musb *musb, struct cppi_channel *rx, int onepacket)
musb_readl(tibase,
DAVINCI_RXCPPI_BUFCNT0_REG + (rx->index * 4))
& 0xffff,
- addr, length, rx->channel.actual_len, rx->buf_len);
+ (unsigned long long)addr, length,
+ rx->channel.actual_len, rx->buf_len);
/* only queue one segment at a time, since the hardware prevents
* correct queue shutdown after unexpected short packets
@@ -1039,9 +1040,9 @@ static bool cppi_rx_scan(struct cppi *cppi, unsigned ch)
if (!completed && (bd->hw_options & CPPI_OWN_SET))
break;
- DBG(5, "C/RXBD %08x: nxt %08x buf %08x "
+ DBG(5, "C/RXBD %llx: nxt %08x buf %08x "
"off.len %08x opt.len %08x (%d)\n",
- bd->dma, bd->hw_next, bd->hw_bufp,
+ (unsigned long long)bd->dma, bd->hw_next, bd->hw_bufp,
bd->hw_off_len, bd->hw_options,
rx->channel.actual_len);
@@ -1111,11 +1112,12 @@ static bool cppi_rx_scan(struct cppi *cppi, unsigned ch)
musb_ep_select(cppi->mregs, rx->index + 1);
csr = musb_readw(regs, MUSB_RXCSR);
if (csr & MUSB_RXCSR_DMAENAB) {
- DBG(4, "list%d %p/%p, last %08x%s, csr %04x\n",
+ DBG(4, "list%d %p/%p, last %llx%s, csr %04x\n",
rx->index,
rx->head, rx->tail,
rx->last_processed
- ? rx->last_processed->dma
+ ? (unsigned long long)
+ rx->last_processed->dma
: 0,
completed ? ", completed" : "",
csr);
@@ -1167,8 +1169,11 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
tx = musb_readl(tibase, DAVINCI_TXCPPI_MASKED_REG);
rx = musb_readl(tibase, DAVINCI_RXCPPI_MASKED_REG);
- if (!tx && !rx)
+ if (!tx && !rx) {
+ if (cppi->irq)
+ spin_unlock_irqrestore(&musb->lock, flags);
return IRQ_NONE;
+ }
DBG(4, "CPPI IRQ Tx%x Rx%x\n", tx, rx);
@@ -1199,7 +1204,7 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
*/
if (NULL == bd) {
DBG(1, "null BD\n");
- tx_ram->tx_complete = 0;
+ musb_writel(&tx_ram->tx_complete, 0, 0);
continue;
}
@@ -1452,7 +1457,7 @@ static int cppi_channel_abort(struct dma_channel *channel)
* compare mode by writing 1 to the tx_complete register.
*/
cppi_reset_tx(tx_ram, 1);
- cppi_ch->head = 0;
+ cppi_ch->head = NULL;
musb_writel(&tx_ram->tx_complete, 0, 1);
cppi_dump_tx(5, cppi_ch, " (done teardown)");
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 630ae7f3cd4..f10ff00ca09 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1030,6 +1030,7 @@ static void musb_shutdown(struct platform_device *pdev)
struct musb *musb = dev_to_musb(&pdev->dev);
unsigned long flags;
+ pm_runtime_get_sync(musb->controller);
spin_lock_irqsave(&musb->lock, flags);
musb_platform_disable(musb);
musb_generic_disable(musb);
@@ -1040,6 +1041,7 @@ static void musb_shutdown(struct platform_device *pdev)
musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
musb_platform_exit(musb);
+ pm_runtime_put(musb->controller);
/* FIXME power down */
}
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 4bd9e2145ee..0e053b58796 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -261,6 +261,7 @@ enum musb_g_ep0_state {
* @try_ilde: tries to idle the IP
* @vbus_status: returns vbus status if possible
* @set_vbus: forces vbus status
+ * @channel_program: pre check for standard dma channel_program func
*/
struct musb_platform_ops {
int (*init)(struct musb *musb);
@@ -274,6 +275,10 @@ struct musb_platform_ops {
int (*vbus_status)(struct musb *musb);
void (*set_vbus)(struct musb *musb, int on);
+
+ int (*adjust_channel_params)(struct dma_channel *channel,
+ u16 packet_sz, u8 *mode,
+ dma_addr_t *dma_addr, u32 *len);
};
/*
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 98519c5d8b5..6dfbf9ffd7a 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -535,7 +535,7 @@ void musb_g_tx(struct musb *musb, u8 epnum)
is_dma = 1;
csr |= MUSB_TXCSR_P_WZC_BITS;
csr &= ~(MUSB_TXCSR_DMAENAB | MUSB_TXCSR_P_UNDERRUN |
- MUSB_TXCSR_TXPKTRDY);
+ MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_AUTOSET);
musb_writew(epio, MUSB_TXCSR, csr);
/* Ensure writebuffer is empty. */
csr = musb_readw(epio, MUSB_TXCSR);
@@ -1296,7 +1296,7 @@ static int musb_gadget_dequeue(struct usb_ep *ep, struct usb_request *request)
}
/* if the hardware doesn't have the request, easy ... */
- if (musb_ep->req_list.next != &request->list || musb_ep->busy)
+ if (musb_ep->req_list.next != &req->list || musb_ep->busy)
musb_g_giveback(musb_ep, request, -ECONNRESET);
/* ... else abort the dma transfer ... */
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 0144a2d481f..d281792db05 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -169,6 +169,14 @@ static int dma_channel_program(struct dma_channel *channel,
BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN ||
channel->status == MUSB_DMA_STATUS_BUSY);
+ /* Let targets check/tweak the arguments */
+ if (musb->ops->adjust_channel_params) {
+ int ret = musb->ops->adjust_channel_params(channel,
+ packet_sz, &mode, &dma_addr, &len);
+ if (ret)
+ return ret;
+ }
+
/*
* The DMA engine in RTL1.8 and above cannot handle
* DMA addresses that are not aligned to a 4 byte boundary.
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index d6384e4aeef..f7e04bf34a1 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -93,6 +93,8 @@ static int __init ux500_probe(struct platform_device *pdev)
}
musb->dev.parent = &pdev->dev;
+ musb->dev.dma_mask = pdev->dev.dma_mask;
+ musb->dev.coherent_dma_mask = pdev->dev.coherent_dma_mask;
glue->dev = &pdev->dev;
glue->musb = musb;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-27 03:55:45 +0000