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