On 12.05.19 02:57, Marek Vasut wrote:
Enable DM SATA support on DHCOM iMX6 PDK2.
Convert board code to match the DM support.

Signed-off-by: Marek Vasut <ma...@denx.de>
Cc: Fabio Estevam <fabio.este...@nxp.com>
Cc: Ludwig Zenz <lz...@dh-electronics.com>
Cc: Stefano Babic <sba...@denx.de>
---
  board/dhelectronics/dh_imx6/dh_imx6.c | 55 +++++++++++++++++++++++++--
  configs/dh_imx6_defconfig             |  2 +
  include/configs/dh_imx6.h             |  5 ---
  3 files changed, 53 insertions(+), 9 deletions(-)

diff --git a/board/dhelectronics/dh_imx6/dh_imx6.c 
b/board/dhelectronics/dh_imx6/dh_imx6.c
index 193bb0eade..2381df84b4 100644
--- a/board/dhelectronics/dh_imx6/dh_imx6.c
+++ b/board/dhelectronics/dh_imx6/dh_imx6.c
@@ -20,6 +20,8 @@
  #include <asm/mach-imx/iomux-v3.h>
  #include <asm/mach-imx/mxc_i2c.h>
  #include <asm/mach-imx/sata.h>
+#include <ahci.h>
+#include <dwc_ahsata.h>
  #include <environment.h>
  #include <errno.h>
  #include <fsl_esdhc.h>
@@ -302,10 +304,6 @@ int board_init(void)
        }
  #endif
-#ifdef CONFIG_SATA
-       setup_sata();
-#endif
-
        setup_dhcom_mac_from_fuse();
return 0;
@@ -384,3 +382,52 @@ int checkboard(void)
        puts("Board: DHCOM i.MX6\n");
        return 0;
  }
+
+#if CONFIG_IS_ENABLED(AHCI)
+static int sata_imx_probe(struct udevice *dev)
+{
+       int i, err;
+
+       for (i = 0; i < 10; i++) {
+               err = setup_sata();
+               if (err) {
+                       printf("SATA setup failed: %d\n", err);
+                       return err;
+               }
+
+               udelay(100);
+
+               err = dwc_ahsata_probe(dev);
+               if (!err)
+                       break;
+
+               /* There is no device on the SATA port */
+               if (sata_dm_port_status(0, 0) == 0)
+                       break;
+
+               /* There's a device, but link not established. Retry */
+               device_remove(dev, DM_REMOVE_NORMAL);
+       }
+
+       return 0;
+}
+
+struct ahci_ops sata_imx_ops = {
+       .port_status = dwc_ahsata_port_status,
+       .reset  = dwc_ahsata_bus_reset,
+       .scan   = dwc_ahsata_scan,
+};
+
+static const struct udevice_id sata_imx_ids[] = {
+       { .compatible = "fsl,imx6q-ahci" },
+       { }
+};
+
+U_BOOT_DRIVER(sata_imx) = {
+       .name           = "dwc_ahci",
+       .id             = UCLASS_AHCI,
+       .of_match       = sata_imx_ids,
+       .ops            = &sata_imx_ops,
+       .probe          = sata_imx_probe,
+};
+#endif /* AHCI */

Is this code dh_imx6 specific in any way? If not, then it would be
better placed in drivers/ata, so that other i.MX6 boards might use
it as well. Or am I missing something?

Thanks,
Stefan
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot

Reply via email to