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Merge branch 'u-boot-atmel/master' into 'u-boot-arm/master'

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master
Albert ARIBAUD 11 years ago
parent aed39f354e 6dbeb893c4
commit 754466ac95
8 changed files with 110 additions and 45 deletions
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  1. 2
      arch/arm/cpu/armv7/at91/cpu.c
  2. 20
      arch/avr32/cpu/cache.c
  3. 2
      arch/avr32/include/asm/arch-at32ap700x/cacheflush.h
  4. 6
      arch/avr32/include/asm/dma-mapping.h
  5. 4
      arch/avr32/lib/board.c
  6. 113
      drivers/net/macb.c
  7. 6
      drivers/video/atmel_hlcdfb.c
  8. 2
      include/configs/ethernut5.h

2
arch/arm/cpu/armv7/at91/cpu.c
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@ -61,6 +61,8 @@ int print_cpuinfo(void)
void enable_caches(void)
{
icache_enable();
dcache_enable();
}
unsigned int get_chip_id(void)

20
arch/avr32/cpu/cache.c
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@ -24,31 +24,31 @@ void dcache_clean_range(volatile void *start, size_t size)
sync_write_buffer();
}
void dcache_invalidate_range(volatile void *start, size_t size)
void invalidate_dcache_range(unsigned long start, unsigned long stop)
{
unsigned long v, begin, end, linesz;
unsigned long v, linesz;
linesz = CONFIG_SYS_DCACHE_LINESZ;
/* You asked for it, you got it */
begin = (unsigned long)start & ~(linesz - 1);
end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
start = start & ~(linesz - 1);
stop = (stop + linesz - 1) & ~(linesz - 1);
for (v = begin; v < end; v += linesz)
for (v = start; v < stop; v += linesz)
dcache_invalidate_line((void *)v);
}
void dcache_flush_range(volatile void *start, size_t size)
void flush_dcache_range(unsigned long start, unsigned long stop)
{
unsigned long v, begin, end, linesz;
unsigned long v, linesz;
linesz = CONFIG_SYS_DCACHE_LINESZ;
/* You asked for it, you got it */
begin = (unsigned long)start & ~(linesz - 1);
end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
start = start & ~(linesz - 1);
stop = (stop + linesz - 1) & ~(linesz - 1);
for (v = begin; v < end; v += linesz)
for (v = start; v < stop; v += linesz)
dcache_flush_line((void *)v);
sync_write_buffer();

2
arch/avr32/include/asm/arch-at32ap700x/cacheflush.h
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@ -49,9 +49,7 @@ static inline void icache_invalidate_line(volatile void *vaddr)
* Applies the above functions on all lines that are touched by the
* specified virtual address range.
*/
void dcache_invalidate_range(volatile void *start, size_t len);
void dcache_clean_range(volatile void *start, size_t len);
void dcache_flush_range(volatile void *start, size_t len);
void icache_invalidate_range(volatile void *start, size_t len);
static inline void dcache_flush_unlocked(void)

6
arch/avr32/include/asm/dma-mapping.h
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@ -23,13 +23,15 @@ static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
switch (dir) {
case DMA_BIDIRECTIONAL:
dcache_flush_range(vaddr, len);
flush_dcache_range((unsigned long)vaddr,
(unsigned long)vaddr + len);
break;
case DMA_TO_DEVICE:
dcache_clean_range(vaddr, len);
break;
case DMA_FROM_DEVICE:
dcache_invalidate_range(vaddr, len);
invalidate_dcache_range((unsigned long)vaddr,
(unsigned long)vaddr + len);
break;
default:
/* This will cause a linker error */

4
arch/avr32/lib/board.c
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@ -65,8 +65,8 @@ static void dma_alloc_init(void)
printf("DMA: Using memory from 0x%08lx to 0x%08lx\n",
dma_alloc_start, dma_alloc_end);
dcache_invalidate_range(cached(dma_alloc_start),
dma_alloc_end - dma_alloc_start);
invalidate_dcache_range((unsigned long)cached(dma_alloc_start),
dma_alloc_end);
}
void *dma_alloc_coherent(size_t len, unsigned long *handle)

113
drivers/net/macb.c
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@ -40,17 +40,21 @@
#include "macb.h"
#define CONFIG_SYS_MACB_RX_BUFFER_SIZE 4096
#define CONFIG_SYS_MACB_RX_RING_SIZE (CONFIG_SYS_MACB_RX_BUFFER_SIZE / 128)
#define CONFIG_SYS_MACB_TX_RING_SIZE 16
#define CONFIG_SYS_MACB_TX_TIMEOUT 1000
#define CONFIG_SYS_MACB_AUTONEG_TIMEOUT 5000000
#define MACB_RX_BUFFER_SIZE 4096
#define MACB_RX_RING_SIZE (MACB_RX_BUFFER_SIZE / 128)
#define MACB_TX_RING_SIZE 16
#define MACB_TX_TIMEOUT 1000
#define MACB_AUTONEG_TIMEOUT 5000000
struct macb_dma_desc {
u32 addr;
u32 ctrl;
};
#define DMA_DESC_BYTES(n) (n * sizeof(struct macb_dma_desc))
#define MACB_TX_DMA_DESC_SIZE (DMA_DESC_BYTES(MACB_TX_RING_SIZE))
#define MACB_RX_DMA_DESC_SIZE (DMA_DESC_BYTES(MACB_RX_RING_SIZE))
#define RXADDR_USED 0x00000001
#define RXADDR_WRAP 0x00000002
@ -170,7 +174,7 @@ int macb_miiphy_read(const char *devname, u8 phy_adr, u8 reg, u16 *value)
struct eth_device *dev = eth_get_dev_by_name(devname);
struct macb_device *macb = to_macb(dev);
if ( macb->phy_addr != phy_adr )
if (macb->phy_addr != phy_adr)
return -1;
arch_get_mdio_control(devname);
@ -184,7 +188,7 @@ int macb_miiphy_write(const char *devname, u8 phy_adr, u8 reg, u16 value)
struct eth_device *dev = eth_get_dev_by_name(devname);
struct macb_device *macb = to_macb(dev);
if ( macb->phy_addr != phy_adr )
if (macb->phy_addr != phy_adr)
return -1;
arch_get_mdio_control(devname);
@ -194,6 +198,39 @@ int macb_miiphy_write(const char *devname, u8 phy_adr, u8 reg, u16 value)
}
#endif
#define RX 1
#define TX 0
static inline void macb_invalidate_ring_desc(struct macb_device *macb, bool rx)
{
if (rx)
invalidate_dcache_range(macb->rx_ring_dma, macb->rx_ring_dma +
MACB_RX_DMA_DESC_SIZE);
else
invalidate_dcache_range(macb->tx_ring_dma, macb->tx_ring_dma +
MACB_TX_DMA_DESC_SIZE);
}
static inline void macb_flush_ring_desc(struct macb_device *macb, bool rx)
{
if (rx)
flush_dcache_range(macb->rx_ring_dma, macb->rx_ring_dma +
MACB_RX_DMA_DESC_SIZE);
else
flush_dcache_range(macb->tx_ring_dma, macb->tx_ring_dma +
MACB_TX_DMA_DESC_SIZE);
}
static inline void macb_flush_rx_buffer(struct macb_device *macb)
{
flush_dcache_range(macb->rx_buffer_dma, macb->rx_buffer_dma +
MACB_RX_BUFFER_SIZE);
}
static inline void macb_invalidate_rx_buffer(struct macb_device *macb)
{
invalidate_dcache_range(macb->rx_buffer_dma, macb->rx_buffer_dma +
MACB_RX_BUFFER_SIZE);
}
#if defined(CONFIG_CMD_NET)
@ -208,23 +245,28 @@ static int macb_send(struct eth_device *netdev, void *packet, int length)
ctrl = length & TXBUF_FRMLEN_MASK;
ctrl |= TXBUF_FRAME_END;
if (tx_head == (CONFIG_SYS_MACB_TX_RING_SIZE - 1)) {
if (tx_head == (MACB_TX_RING_SIZE - 1)) {
ctrl |= TXBUF_WRAP;
macb->tx_head = 0;
} else
} else {
macb->tx_head++;
}
macb->tx_ring[tx_head].ctrl = ctrl;
macb->tx_ring[tx_head].addr = paddr;
barrier();
macb_flush_ring_desc(macb, TX);
/* Do we need check paddr and length is dcache line aligned? */
flush_dcache_range(paddr, paddr + length);
macb_writel(macb, NCR, MACB_BIT(TE) | MACB_BIT(RE) | MACB_BIT(TSTART));
/*
* I guess this is necessary because the networking core may
* re-use the transmit buffer as soon as we return...
*/
for (i = 0; i <= CONFIG_SYS_MACB_TX_TIMEOUT; i++) {
for (i = 0; i <= MACB_TX_TIMEOUT; i++) {
barrier();
macb_invalidate_ring_desc(macb, TX);
ctrl = macb->tx_ring[tx_head].ctrl;
if (ctrl & TXBUF_USED)
break;
@ -233,7 +275,7 @@ static int macb_send(struct eth_device *netdev, void *packet, int length)
dma_unmap_single(packet, length, paddr);
if (i <= CONFIG_SYS_MACB_TX_TIMEOUT) {
if (i <= MACB_TX_TIMEOUT) {
if (ctrl & TXBUF_UNDERRUN)
printf("%s: TX underrun\n", netdev->name);
if (ctrl & TXBUF_EXHAUSTED)
@ -253,10 +295,12 @@ static void reclaim_rx_buffers(struct macb_device *macb,
unsigned int i;
i = macb->rx_tail;
macb_invalidate_ring_desc(macb, RX);
while (i > new_tail) {
macb->rx_ring[i].addr &= ~RXADDR_USED;
i++;
if (i > CONFIG_SYS_MACB_RX_RING_SIZE)
if (i > MACB_RX_RING_SIZE)
i = 0;
}
@ -266,6 +310,7 @@ static void reclaim_rx_buffers(struct macb_device *macb,
}
barrier();
macb_flush_ring_desc(macb, RX);
macb->rx_tail = new_tail;
}
@ -279,6 +324,8 @@ static int macb_recv(struct eth_device *netdev)
u32 status;
for (;;) {
macb_invalidate_ring_desc(macb, RX);
if (!(macb->rx_ring[rx_tail].addr & RXADDR_USED))
return -1;
@ -292,10 +339,12 @@ static int macb_recv(struct eth_device *netdev)
if (status & RXBUF_FRAME_END) {
buffer = macb->rx_buffer + 128 * macb->rx_tail;
length = status & RXBUF_FRMLEN_MASK;
macb_invalidate_rx_buffer(macb);
if (wrapped) {
unsigned int headlen, taillen;
headlen = 128 * (CONFIG_SYS_MACB_RX_RING_SIZE
headlen = 128 * (MACB_RX_RING_SIZE
- macb->rx_tail);
taillen = length - headlen;
memcpy((void *)NetRxPackets[0],
@ -306,11 +355,11 @@ static int macb_recv(struct eth_device *netdev)
}
NetReceive(buffer, length);
if (++rx_tail >= CONFIG_SYS_MACB_RX_RING_SIZE)
if (++rx_tail >= MACB_RX_RING_SIZE)
rx_tail = 0;
reclaim_rx_buffers(macb, rx_tail);
} else {
if (++rx_tail >= CONFIG_SYS_MACB_RX_RING_SIZE) {
if (++rx_tail >= MACB_RX_RING_SIZE) {
wrapped = 1;
rx_tail = 0;
}
@ -333,7 +382,7 @@ static void macb_phy_reset(struct macb_device *macb)
macb_mdio_write(macb, MII_BMCR, (BMCR_ANENABLE
| BMCR_ANRESTART));
for (i = 0; i < CONFIG_SYS_MACB_AUTONEG_TIMEOUT / 100; i++) {
for (i = 0; i < MACB_AUTONEG_TIMEOUT / 100; i++) {
status = macb_mdio_read(macb, MII_BMSR);
if (status & BMSR_ANEGCOMPLETE)
break;
@ -385,9 +434,8 @@ static int macb_phy_init(struct macb_device *macb)
arch_get_mdio_control(netdev->name);
#ifdef CONFIG_MACB_SEARCH_PHY
/* Auto-detect phy_addr */
if (!macb_phy_find(macb)) {
if (!macb_phy_find(macb))
return 0;
}
#endif /* CONFIG_MACB_SEARCH_PHY */
/* Check if the PHY is up to snuff... */
@ -414,7 +462,7 @@ static int macb_phy_init(struct macb_device *macb)
/* Try to re-negotiate if we don't have link already. */
macb_phy_reset(macb);
for (i = 0; i < CONFIG_SYS_MACB_AUTONEG_TIMEOUT / 100; i++) {
for (i = 0; i < MACB_AUTONEG_TIMEOUT / 100; i++) {
status = macb_mdio_read(macb, MII_BMSR);
if (status & BMSR_LSTATUS)
break;
@ -499,21 +547,28 @@ static int macb_init(struct eth_device *netdev, bd_t *bd)
/* initialize DMA descriptors */
paddr = macb->rx_buffer_dma;
for (i = 0; i < CONFIG_SYS_MACB_RX_RING_SIZE; i++) {
if (i == (CONFIG_SYS_MACB_RX_RING_SIZE - 1))
for (i = 0; i < MACB_RX_RING_SIZE; i++) {
if (i == (MACB_RX_RING_SIZE - 1))
paddr |= RXADDR_WRAP;
macb->rx_ring[i].addr = paddr;
macb->rx_ring[i].ctrl = 0;
paddr += 128;
}
for (i = 0; i < CONFIG_SYS_MACB_TX_RING_SIZE; i++) {
macb_flush_ring_desc(macb, RX);
macb_flush_rx_buffer(macb);
for (i = 0; i < MACB_TX_RING_SIZE; i++) {
macb->tx_ring[i].addr = 0;
if (i == (CONFIG_SYS_MACB_TX_RING_SIZE - 1))
if (i == (MACB_TX_RING_SIZE - 1))
macb->tx_ring[i].ctrl = TXBUF_USED | TXBUF_WRAP;
else
macb->tx_ring[i].ctrl = TXBUF_USED;
}
macb->rx_tail = macb->tx_head = macb->tx_tail = 0;
macb_flush_ring_desc(macb, TX);
macb->rx_tail = 0;
macb->tx_head = 0;
macb->tx_tail = 0;
macb_writel(macb, RBQP, macb->rx_ring_dma);
macb_writel(macb, TBQP, macb->tx_ring_dma);
@ -654,15 +709,15 @@ int macb_eth_initialize(int id, void *regs, unsigned int phy_addr)
netdev = &macb->netdev;
macb->rx_buffer = dma_alloc_coherent(CONFIG_SYS_MACB_RX_BUFFER_SIZE,
macb->rx_buffer = dma_alloc_coherent(MACB_RX_BUFFER_SIZE,
&macb->rx_buffer_dma);
macb->rx_ring = dma_alloc_coherent(CONFIG_SYS_MACB_RX_RING_SIZE
* sizeof(struct macb_dma_desc),
macb->rx_ring = dma_alloc_coherent(MACB_RX_DMA_DESC_SIZE,
&macb->rx_ring_dma);
macb->tx_ring = dma_alloc_coherent(CONFIG_SYS_MACB_TX_RING_SIZE
* sizeof(struct macb_dma_desc),
macb->tx_ring = dma_alloc_coherent(MACB_TX_DMA_DESC_SIZE,
&macb->tx_ring_dma);
/* TODO: we need check the rx/tx_ring_dma is dcache line aligned */
macb->regs = regs;
macb->phy_addr = phy_addr;

6
drivers/video/atmel_hlcdfb.c
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@ -171,6 +171,9 @@ void lcd_ctrl_init(void *lcdbase)
| LCDC_BASECTRL_DMAIEN | LCDC_BASECTRL_DFETCH;
desc->next = (u32)desc;
/* Flush the DMA descriptor if we enabled dcache */
flush_dcache_range((u32)desc, (u32)desc + sizeof(*desc));
lcdc_writel(&regs->lcdc_baseaddr, desc->address);
lcdc_writel(&regs->lcdc_basectrl, desc->control);
lcdc_writel(&regs->lcdc_basenext, desc->next);
@ -194,4 +197,7 @@ void lcd_ctrl_init(void *lcdbase)
lcdc_writel(&regs->lcdc_lcden, value | LCDC_LCDEN_PWMEN);
while (!(lcdc_readl(&regs->lcdc_lcdsr) & LCDC_LCDSR_PWMSTS))
udelay(1);
/* Enable flushing if we enabled dcache */
lcd_set_flush_dcache(1);
}

2
include/configs/ethernut5.h
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@ -12,6 +12,8 @@
#include <asm/hardware.h>
#define CONFIG_SYS_GENERIC_BOARD
/* The first stage boot loader expects u-boot running at this address. */
#define CONFIG_SYS_TEXT_BASE 0x27000000 /* 16MB available */

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