From: Hou Zhiqiang B48286@freescale.com
The Frame Manager(FMan) is a big-endian peripheral, so the registers, internal MURAM and BDs, which are allocated in main memory and used to communication between core and FMan, should be accessed in big-endian. The big-endian platforms can access them directly as the code implemented so far, while for the little-endian platforms it need to swap the byte-order.
Signed-off-by: Hou Zhiqiang B48286@freescale.com Signed-off-by: Shaohui Xie Shaohui.Xie@freescale.com Signed-off-by: Mingkai Hu Mingkai.Hu@freescale.com Signed-off-by: Gong Qianyu Qianyu.Gong@freescale.com --- V3: - Modify the subject to make the aim clear.
drivers/net/fm/eth.c | 70 +++++++++++++++++++++++++++------------------------- drivers/net/fm/fm.c | 11 +++++---- 2 files changed, 43 insertions(+), 38 deletions(-)
diff --git a/drivers/net/fm/eth.c b/drivers/net/fm/eth.c index 6702f5a..946b591 100644 --- a/drivers/net/fm/eth.c +++ b/drivers/net/fm/eth.c @@ -109,7 +109,7 @@ static int tgec_is_fibre(struct eth_device *dev) static u16 muram_readw(u16 *addr) { u32 base = (u32)addr & ~0x3; - u32 val32 = *(u32 *)base; + u32 val32 = in_be32((u32 *)base); int byte_pos; u16 ret;
@@ -125,7 +125,7 @@ static u16 muram_readw(u16 *addr) static void muram_writew(u16 *addr, u16 val) { u32 base = (u32)addr & ~0x3; - u32 org32 = *(u32 *)base; + u32 org32 = in_be32((u32 *)base); u32 val32; int byte_pos;
@@ -135,7 +135,7 @@ static void muram_writew(u16 *addr, u16 val) else val32 = (org32 & 0x0000ffff) | ((u32)val << 16);
- *(u32 *)base = val32; + out_be32((u32 *)base, val32); }
static void bmi_rx_port_disable(struct fm_bmi_rx_port *rx_port) @@ -213,10 +213,10 @@ static int fm_eth_rx_port_parameter_init(struct fm_eth *fm_eth) pram_page_offset = (u32)pram - fm_muram_base(fm_eth->fm_index);
/* enable global mode- snooping data buffers and BDs */ - pram->mode = PRAM_MODE_GLOBAL; + out_be32(&pram->mode, PRAM_MODE_GLOBAL);
/* init the Rx queue descriptor pionter */ - pram->rxqd_ptr = pram_page_offset + 0x20; + out_be32(&pram->rxqd_ptr, pram_page_offset + 0x20);
/* set the max receive buffer length, power of 2 */ muram_writew(&pram->mrblr, MAX_RXBUF_LOG2); @@ -243,10 +243,11 @@ static int fm_eth_rx_port_parameter_init(struct fm_eth *fm_eth) /* init Rx BDs ring */ rxbd = (struct fm_port_bd *)rx_bd_ring_base; for (i = 0; i < RX_BD_RING_SIZE; i++) { - rxbd->status = RxBD_EMPTY; - rxbd->len = 0; - rxbd->buf_ptr_hi = 0; - rxbd->buf_ptr_lo = (u32)rx_buf_pool + i * MAX_RXBUF_LEN; + muram_writew(&rxbd->status, RxBD_EMPTY); + muram_writew(&rxbd->len, 0); + muram_writew(&rxbd->buf_ptr_hi, 0); + out_be32(&rxbd->buf_ptr_lo, (u32)rx_buf_pool + + i * MAX_RXBUF_LEN); rxbd++; }
@@ -254,7 +255,7 @@ static int fm_eth_rx_port_parameter_init(struct fm_eth *fm_eth) rxqd = &pram->rxqd; muram_writew(&rxqd->gen, 0); muram_writew(&rxqd->bd_ring_base_hi, 0); - rxqd->bd_ring_base_lo = (u32)rx_bd_ring_base; + out_be32(&rxqd->bd_ring_base_lo, (u32)rx_bd_ring_base); muram_writew(&rxqd->bd_ring_size, sizeof(struct fm_port_bd) * RX_BD_RING_SIZE); muram_writew(&rxqd->offset_in, 0); @@ -285,10 +286,10 @@ static int fm_eth_tx_port_parameter_init(struct fm_eth *fm_eth) pram_page_offset = (u32)pram - fm_muram_base(fm_eth->fm_index);
/* enable global mode- snooping data buffers and BDs */ - pram->mode = PRAM_MODE_GLOBAL; + out_be32(&pram->mode, PRAM_MODE_GLOBAL);
/* init the Tx queue descriptor pionter */ - pram->txqd_ptr = pram_page_offset + 0x40; + out_be32(&pram->txqd_ptr, pram_page_offset + 0x40);
/* alloc Tx buffer descriptors from main memory */ tx_bd_ring_base = malloc(sizeof(struct fm_port_bd) @@ -304,16 +305,17 @@ static int fm_eth_tx_port_parameter_init(struct fm_eth *fm_eth) /* init Tx BDs ring */ txbd = (struct fm_port_bd *)tx_bd_ring_base; for (i = 0; i < TX_BD_RING_SIZE; i++) { - txbd->status = TxBD_LAST; - txbd->len = 0; - txbd->buf_ptr_hi = 0; - txbd->buf_ptr_lo = 0; + muram_writew(&txbd->status, TxBD_LAST); + muram_writew(&txbd->len, 0); + muram_writew(&txbd->buf_ptr_hi, 0); + out_be32(&txbd->buf_ptr_lo, 0); + txbd++; }
/* set the Tx queue decriptor */ txqd = &pram->txqd; muram_writew(&txqd->bd_ring_base_hi, 0); - txqd->bd_ring_base_lo = (u32)tx_bd_ring_base; + out_be32(&txqd->bd_ring_base_lo, (u32)tx_bd_ring_base); muram_writew(&txqd->bd_ring_size, sizeof(struct fm_port_bd) * TX_BD_RING_SIZE); muram_writew(&txqd->offset_in, 0); @@ -368,7 +370,7 @@ static void fmc_tx_port_graceful_stop_enable(struct fm_eth *fm_eth)
pram = fm_eth->tx_pram; /* graceful stop transmission of frames */ - pram->mode |= PRAM_MODE_GRACEFUL_STOP; + setbits_be32(&pram->mode, PRAM_MODE_GRACEFUL_STOP); sync(); }
@@ -378,7 +380,7 @@ static void fmc_tx_port_graceful_stop_disable(struct fm_eth *fm_eth)
pram = fm_eth->tx_pram; /* re-enable transmission of frames */ - pram->mode &= ~PRAM_MODE_GRACEFUL_STOP; + clrbits_be32(&pram->mode, PRAM_MODE_GRACEFUL_STOP); sync(); }
@@ -469,19 +471,20 @@ static int fm_eth_send(struct eth_device *dev, void *buf, int len) txbd = fm_eth->cur_txbd;
/* find one empty TxBD */ - for (i = 0; txbd->status & TxBD_READY; i++) { + for (i = 0; muram_readw(&txbd->status) & TxBD_READY; i++) { udelay(100); if (i > 0x1000) { - printf("%s: Tx buffer not ready\n", dev->name); + printf("%s: Tx buffer not ready, txbd->status = 0x%x\n", + dev->name, muram_readw(&txbd->status)); return 0; } } /* setup TxBD */ - txbd->buf_ptr_hi = 0; - txbd->buf_ptr_lo = (u32)buf; - txbd->len = len; + muram_writew(&txbd->buf_ptr_hi, 0); + out_be32(&txbd->buf_ptr_lo, (u32)buf); + muram_writew(&txbd->len, len); sync(); - txbd->status = TxBD_READY | TxBD_LAST; + muram_writew(&txbd->status, TxBD_READY | TxBD_LAST); sync();
/* update TxQD, let RISC to send the packet */ @@ -493,10 +496,11 @@ static int fm_eth_send(struct eth_device *dev, void *buf, int len) sync();
/* wait for buffer to be transmitted */ - for (i = 0; txbd->status & TxBD_READY; i++) { + for (i = 0; muram_readw(&txbd->status) & TxBD_READY; i++) { udelay(100); if (i > 0x10000) { - printf("%s: Tx error\n", dev->name); + printf("%s: Tx error, txbd->status = 0x%x\n", + dev->name, muram_readw(&txbd->status)); return 0; } } @@ -525,12 +529,12 @@ static int fm_eth_recv(struct eth_device *dev) fm_eth = (struct fm_eth *)dev->priv; pram = fm_eth->rx_pram; rxbd = fm_eth->cur_rxbd; - status = rxbd->status; + status = muram_readw(&rxbd->status);
while (!(status & RxBD_EMPTY)) { if (!(status & RxBD_ERROR)) { - data = (u8 *)rxbd->buf_ptr_lo; - len = rxbd->len; + data = (u8 *)in_be32(&rxbd->buf_ptr_lo); + len = muram_readw(&rxbd->len); net_process_received_packet(data, len); } else { printf("%s: Rx error\n", dev->name); @@ -538,8 +542,8 @@ static int fm_eth_recv(struct eth_device *dev) }
/* clear the RxBDs */ - rxbd->status = RxBD_EMPTY; - rxbd->len = 0; + muram_writew(&rxbd->status, RxBD_EMPTY); + muram_writew(&rxbd->len, 0); sync();
/* advance RxBD */ @@ -548,7 +552,7 @@ static int fm_eth_recv(struct eth_device *dev) if (rxbd >= (rxbd_base + RX_BD_RING_SIZE)) rxbd = rxbd_base; /* read next status */ - status = rxbd->status; + status = muram_readw(&rxbd->status);
/* update RxQD */ offset_out = muram_readw(&pram->rxqd.offset_out); diff --git a/drivers/net/fm/fm.c b/drivers/net/fm/fm.c index 400e9dd..eb0eb3d 100644 --- a/drivers/net/fm/fm.c +++ b/drivers/net/fm/fm.c @@ -80,11 +80,11 @@ static void fm_upload_ucode(int fm_idx, struct fm_imem *imem, out_be32(&imem->iadd, IRAM_IADD_AIE); /* write microcode to IRAM */ for (i = 0; i < size / 4; i++) - out_be32(&imem->idata, ucode[i]); + out_be32(&imem->idata, (be32_to_cpu(ucode[i])));
/* verify if the writing is over */ out_be32(&imem->iadd, 0); - while ((in_be32(&imem->idata) != ucode[0]) && --timeout) + while ((in_be32(&imem->idata) != be32_to_cpu(ucode[0])) && --timeout) ; if (!timeout) printf("Fman%u: microcode upload timeout\n", fm_idx + 1); @@ -177,14 +177,15 @@ static int fman_upload_firmware(int fm_idx, const struct qe_microcode *ucode = &firmware->microcode[i];
/* Upload a microcode if it's present */ - if (ucode->code_offset) { + if (be32_to_cpu(ucode->code_offset)) { u32 ucode_size; u32 *code; printf("Fman%u: Uploading microcode version %u.%u.%u\n", fm_idx + 1, ucode->major, ucode->minor, ucode->revision); - code = (void *)firmware + ucode->code_offset; - ucode_size = sizeof(u32) * ucode->count; + code = (void *)firmware + + be32_to_cpu(ucode->code_offset); + ucode_size = sizeof(u32) * be32_to_cpu(ucode->count); fm_upload_ucode(fm_idx, fm_imem, code, ucode_size); } }