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net: macb: Fix check for little-endian system in gmac_configure_dma()

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Instead of depending on CONFIG_SYS_LITTLE_ENDIAN, we check at runtime
whether underlying system is little-endian or big-endian. This way
we are not dependent on any U-Boot specific OR compiler specific macro
to check system endianness.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Anup Patel 2019-07-24 04:09:37 +00:00 committed by Joe Hershberger
parent d0a04db6af
commit eff0e0c76f
1 changed files with 7 additions and 4 deletions
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11
drivers/net/macb.c
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@ -91,6 +91,8 @@ struct macb_dma_desc {
struct macb_device {
void *regs;
bool is_big_endian;
const struct macb_config *config;
unsigned int rx_tail;
@ -754,11 +756,10 @@ static void gmac_configure_dma(struct macb_device *macb)
dmacfg |= GEM_BIT(TXPBMS) | GEM_BF(RXBMS, -1L);
dmacfg &= ~GEM_BIT(ENDIA_PKT);
#ifdef CONFIG_SYS_LITTLE_ENDIAN
dmacfg &= ~GEM_BIT(ENDIA_DESC);
#else
if (macb->is_big_endian)
dmacfg |= GEM_BIT(ENDIA_DESC); /* CPU in big endian */
#endif
else
dmacfg &= ~GEM_BIT(ENDIA_DESC);
dmacfg &= ~GEM_BIT(ADDR64);
gem_writel(macb, DMACFG, dmacfg);
@ -1239,6 +1240,8 @@ static int macb_eth_probe(struct udevice *dev)
macb->regs = (void *)pdata->iobase;
macb->is_big_endian = (cpu_to_be32(0x12345678) == 0x12345678);
macb->config = (struct macb_config *)dev_get_driver_data(dev);
if (!macb->config)
macb->config = &default_gem_config;