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usb ehci driver: Add MMU support 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2009-09-09 11:35:35 +02:00
parent 721975ba22
commit 38fb079e3f
1 changed files with 10 additions and 11 deletions
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21
drivers/usb/usb_ehci_core.c
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@ -31,6 +31,7 @@
#include <xfuncs.h>
#include <clock.h>
#include <errno.h>
#include <asm/mmu.h>
#include "usb_ehci.h"
@ -119,18 +120,18 @@ static struct descriptor {
#define ehci_is_TDI() (0)
#endif
#if defined(CONFIG_EHCI_DCACHE)
#ifdef CONFIG_MMU
/*
* Routines to handle (flush/invalidate) the dcache for the QH and qTD
* structures and data buffers. This is needed on platforms using this
* EHCI support with dcache enabled.
*/
static void flush_invalidate(u32 addr, int size, int flush)
static void flush_invalidate(void *addr, int size, int flush)
{
if (flush)
flush_dcache_range(addr, addr + size);
dma_flush_range(addr, addr + size);
else
invalidate_dcache_range(addr, addr + size);
dma_inv_range(addr, addr + size);
}
static void cache_qtd(struct qTD *qtd, int flush)
@ -138,9 +139,9 @@ static void cache_qtd(struct qTD *qtd, int flush)
u32 *ptr = (u32 *)qtd->qt_buffer[0];
int len = (qtd->qt_token & 0x7fff0000) >> 16;
flush_invalidate((u32)qtd, sizeof(struct qTD), flush);
flush_invalidate(qtd, sizeof(struct qTD), flush);
if (ptr && len)
flush_invalidate((u32)ptr, len, flush);
flush_invalidate(ptr, len, flush);
}
@ -159,8 +160,7 @@ static void cache_qh(struct QH *qh, int flush)
* Walk the QH list and flush/invalidate all entries
*/
while (1) {
printf("huhu\n");
flush_invalidate((u32)qh_addr(qh), sizeof(struct QH), flush);
flush_invalidate(qh_addr(qh), sizeof(struct QH), flush);
if ((u32)qh & QH_LINK_TYPE_QH)
break;
qh = qh_addr(qh);
@ -181,7 +181,6 @@ static void cache_qh(struct QH *qh, int flush)
* Walk the qTD list and flush/invalidate all entries
*/
while (1) {
printf("haha\n");
if (qtd == NULL)
break;
cache_qtd(qtd, flush);
@ -201,7 +200,7 @@ static inline void ehci_invalidate_dcache(struct QH *qh)
{
cache_qh(qh, 0);
}
#else /* CONFIG_EHCI_DCACHE */
#else /* CONFIG_MMU */
/*
*
*/
@ -212,7 +211,7 @@ static inline void ehci_flush_dcache(struct QH *qh)
static inline void ehci_invalidate_dcache(struct QH *qh)
{
}
#endif /* CONFIG_EHCI_DCACHE */
#endif /* CONFIG_MMU */
static int handshake(uint32_t *ptr, uint32_t mask, uint32_t done, int usec)
{