diff options
| -rw-r--r-- | drivers/net/fec_mxc.c | 23 | ||||
| -rw-r--r-- | include/configs/m28evk.h | 1 | ||||
| -rw-r--r-- | include/configs/mx51evk.h | 4 | ||||
| -rw-r--r-- | include/configs/mx53ard.h | 4 | ||||
| -rw-r--r-- | include/configs/mx53loco.h | 4 | ||||
| -rw-r--r-- | include/configs/mx6qsabrelite.h | 4 | ||||
| -rw-r--r-- | include/configs/mx6slevk.h | 4 | ||||
| -rw-r--r-- | include/configs/wandboard.h | 4 |
8 files changed, 35 insertions, 13 deletions
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index da95e28..ec5b9db 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -560,7 +560,6 @@ static int fec_init(struct eth_device *dev, bd_t* bd) } memset(fec->tbd_base, 0, size); fec_tbd_init(fec); - flush_dcache_range((unsigned)fec->tbd_base, size); } /* @@ -738,6 +737,28 @@ static int fec_send(struct eth_device *dev, void *packet, int length) flush_dcache_range(addr, addr + size); /* + * Below we read the DMA descriptor's last four bytes back from the + * DRAM. This is important in order to make sure that all WRITE + * operations on the bus that were triggered by previous cache FLUSH + * have completed. + * + * Otherwise, on MX28, it is possible to observe a corruption of the + * DMA descriptors. Please refer to schematic "Figure 1-2" in MX28RM + * for the bus structure of MX28. The scenario is as follows: + * + * 1) ARM core triggers a series of WRITEs on the AHB_ARB2 bus going + * to DRAM due to flush_dcache_range() + * 2) ARM core writes the FEC registers via AHB_ARB2 + * 3) FEC DMA starts reading/writing from/to DRAM via AHB_ARB3 + * + * Note that 2) does sometimes finish before 1) due to reordering of + * WRITE accesses on the AHB bus, therefore triggering 3) before the + * DMA descriptor is fully written into DRAM. This results in occasional + * corruption of the DMA descriptor. + */ + readl(addr + size - 4); + + /* * Enable SmartDMA transmit task */ fec_tx_task_enable(fec); diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h index 5b3fa43..10ccc3b 100644 --- a/include/configs/m28evk.h +++ b/include/configs/m28evk.h @@ -70,6 +70,7 @@ #define CONFIG_CMD_MII #define CONFIG_CMD_MMC #define CONFIG_CMD_NAND +#define CONFIG_CMD_NAND_TRIMFFS #define CONFIG_CMD_NET #define CONFIG_CMD_NFS #define CONFIG_CMD_PING diff --git a/include/configs/mx51evk.h b/include/configs/mx51evk.h index 13d1839..4383375d 100644 --- a/include/configs/mx51evk.h +++ b/include/configs/mx51evk.h @@ -162,8 +162,8 @@ "boot_fdt=try\0" \ "ip_dyn=yes\0" \ "mmcdev=0\0" \ - "mmcpart=2\0" \ - "mmcroot=/dev/mmcblk0p3 rootwait rw\0" \ + "mmcpart=1\0" \ + "mmcroot=/dev/mmcblk0p2 rootwait rw\0" \ "mmcargs=setenv bootargs console=ttymxc0,${baudrate} " \ "root=${mmcroot}\0" \ "loadbootscript=" \ diff --git a/include/configs/mx53ard.h b/include/configs/mx53ard.h index b0a965f..fa160e4 100644 --- a/include/configs/mx53ard.h +++ b/include/configs/mx53ard.h @@ -118,8 +118,8 @@ "boot_fdt=try\0" \ "ip_dyn=yes\0" \ "mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \ - "mmcpart=2\0" \ - "mmcroot=/dev/mmcblk0p3 rootwait rw\0" \ + "mmcpart=1\0" \ + "mmcroot=/dev/mmcblk0p2 rootwait rw\0" \ "update_sd_firmware_filename=u-boot.imx\0" \ "update_sd_firmware=" \ "if test ${ip_dyn} = yes; then " \ diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h index a4b610f..cc31e9b 100644 --- a/include/configs/mx53loco.h +++ b/include/configs/mx53loco.h @@ -124,8 +124,8 @@ "boot_fdt=try\0" \ "ip_dyn=yes\0" \ "mmcdev=0\0" \ - "mmcpart=2\0" \ - "mmcroot=/dev/mmcblk0p3 rw rootwait\0" \ + "mmcpart=1\0" \ + "mmcroot=/dev/mmcblk0p2 rw rootwait\0" \ "mmcargs=setenv bootargs console=ttymxc0,${baudrate} root=${mmcroot}\0" \ "loadbootscript=" \ "fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \ diff --git a/include/configs/mx6qsabrelite.h b/include/configs/mx6qsabrelite.h index b814418..c7db81d 100644 --- a/include/configs/mx6qsabrelite.h +++ b/include/configs/mx6qsabrelite.h @@ -170,8 +170,8 @@ "boot_fdt=try\0" \ "ip_dyn=yes\0" \ "mmcdev=0\0" \ - "mmcpart=2\0" \ - "mmcroot=/dev/mmcblk0p3 rootwait rw\0" \ + "mmcpart=1\0" \ + "mmcroot=/dev/mmcblk0p2 rootwait rw\0" \ "mmcargs=setenv bootargs console=${console},${baudrate} " \ "root=${mmcroot}\0" \ "loadbootscript=" \ diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h index 19dcdd6..55e3ad9 100644 --- a/include/configs/mx6slevk.h +++ b/include/configs/mx6slevk.h @@ -73,8 +73,8 @@ "boot_fdt=try\0" \ "ip_dyn=yes\0" \ "mmcdev=0\0" \ - "mmcpart=2\0" \ - "mmcroot=/dev/mmcblk0p3 rootwait rw\0" \ + "mmcpart=1\0" \ + "mmcroot=/dev/mmcblk0p2 rootwait rw\0" \ "mmcargs=setenv bootargs console=${console},${baudrate} " \ "root=${mmcroot}\0" \ "loadbootscript=" \ diff --git a/include/configs/wandboard.h b/include/configs/wandboard.h index b2995d8..ee6bf21 100644 --- a/include/configs/wandboard.h +++ b/include/configs/wandboard.h @@ -120,8 +120,8 @@ "boot_fdt=try\0" \ "ip_dyn=yes\0" \ "mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \ - "mmcpart=2\0" \ - "mmcroot=/dev/mmcblk0p3 rootwait rw\0" \ + "mmcpart=1\0" \ + "mmcroot=/dev/mmcblk0p2 rootwait rw\0" \ "update_sd_firmware_filename=u-boot.imx\0" \ "update_sd_firmware=" \ "if test ${ip_dyn} = yes; then " \ |