After power on, the SATA host controller of P1022 Rev1 is configured in legacy mode instead of the expected enterprise mode.
software needs to clear bit[28] of HControl register to change to enterprise mode after bringing the host offline.
Signed-off-by: Dave Liu daveliu@freescale.com --- drivers/block/fsl_sata.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/block/fsl_sata.c b/drivers/block/fsl_sata.c index abcda6f..d875581 100644 --- a/drivers/block/fsl_sata.c +++ b/drivers/block/fsl_sata.c @@ -21,6 +21,7 @@ #include <common.h> #include <command.h> #include <asm/io.h> +#include <asm/processor.h> #include <malloc.h> #include <libata.h> #include <fis.h> @@ -191,6 +192,19 @@ int init_sata(int dev) /* Wait the controller offline */ ata_wait_register(®->hstatus, HSTATUS_ONOFF, 0, 1000);
+#ifdef CONFIG_SYS_P1022_ERRATUM_SATA-A001 + /* For P1022 Rev1.0 silicon, after power on SATA host + * controller is configured in legacy mode instead of + * the expected enterprise mode. software needs to clear + * bit[28] of HControl register to change to enterprise + * mode from legacy mode. + */ + if (IS_SVR_REV(get_svr(), 1, 0)) { + out_le32(®->hstatus, 0x20000000); + out_le32(®->hcontrol, 0x00000100); + } +#endif + /* Set the command header base address to CHBA register to tell DMA */ out_le32(®->chba, (u32)cmd_hdr & ~0x3);