If the controller receives a new SETUP during SETUP data stage,
and will generate SETUPENDISR interrupt, the driver should abort
the current SETUP command and process the new one.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mtu3_writel(mtu->mac_base, U3D_EP0CSR, csr);
/* Enable EP0 interrupt */
- mtu3_writel(mtu->mac_base, U3D_EPIESR, EP0ISR);
+ mtu3_writel(mtu->mac_base, U3D_EPIESR, EP0ISR | SETUPENDISR);
}
static int mtu3_mem_alloc(struct mtu3 *mtu)
mtu3_writel(mbase, U3D_EPISR, int_status); /* W1C */
/* only handle ep0's */
- if (!(int_status & EP0ISR))
+ if (!(int_status & (EP0ISR | SETUPENDISR)))
return IRQ_NONE;
+ /* abort current SETUP, and process new one */
+ if (int_status & SETUPENDISR)
+ mtu->ep0_state = MU3D_EP0_STATE_SETUP;
+
csr = mtu3_readl(mbase, U3D_EP0CSR);
dev_dbg(mtu->dev, "%s csr=0x%x\n", __func__, csr);
/* U3D_EPISR */
#define EPRISR(x) (BIT(16) << (x))
+#define SETUPENDISR BIT(16)
#define EPTISR(x) (BIT(0) << (x))
#define EP0ISR BIT(0)