config: rename CONFIG_MX* to CONFIG_SOC_MX*

[karo-tx-uboot.git] / drivers / block / dwc_ahsata.c

diff --git a/drivers/block/dwc_ahsata.c b/drivers/block/dwc_ahsata.c
index 98f2c52ee3313ce5b0f4c2e52b349a9e1bf9d22f..30cc4e8cb930718cad68bcc489288b22b1e8afd9 100644 (file)
--- a/drivers/block/dwc_ahsata.c
+++ b/drivers/block/dwc_ahsata.c
@@ -2,23 +2,7 @@
  * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
  * Terry Lv <r65388@freescale.com>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc.
- *
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <libata.h>
@@ -33,6 +17,7 @@
 #include <asm/io.h>
 #include <linux/bitops.h>
 #include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
 #include "dwc_ahsata.h"
 
 struct sata_port_regs {
@@ -574,6 +559,10 @@ int init_sata(int dev)
        u32 linkmap;
        struct ahci_probe_ent *probe_ent = NULL;
 
+#if defined(CONFIG_SOC_MX6)
+       if (!is_cpu_type(MXC_CPU_MX6Q) && !is_cpu_type(MXC_CPU_MX6D))
+               return 1;
+#endif
        if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1)) {
                printf("The sata index %d is out of ranges\n\r", dev);
                return -1;
@@ -603,6 +592,29 @@ int init_sata(int dev)
        return 0;
 }
 
+int reset_sata(int dev)
+{
+       struct ahci_probe_ent *probe_ent;
+       struct sata_host_regs *host_mmio;
+
+       if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1)) {
+               printf("The sata index %d is out of ranges\n\r", dev);
+               return -1;
+       }
+
+       probe_ent = (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
+       if (NULL == probe_ent)
+               /* not initialized, so nothing to reset */
+               return 0;
+
+       host_mmio = (struct sata_host_regs *)probe_ent->mmio_base;
+       setbits_le32(&host_mmio->ghc, SATA_HOST_GHC_HR);
+       while (readl(&host_mmio->ghc) & SATA_HOST_GHC_HR)
+               udelay(100);
+
+       return 0;
+}
+
 static void dwc_ahsata_print_info(int dev)
 {
        block_dev_desc_t *pdev = &(sata_dev_desc[dev]);
@@ -875,6 +887,23 @@ u32 ata_low_level_rw_lba28(int dev, u32 blknr, lbaint_t blkcnt,
        return blkcnt;
 }
 
+int sata_port_status(int dev, int port)
+{
+       struct sata_port_regs *port_mmio;
+       struct ahci_probe_ent *probe_ent = NULL;
+
+       if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1))
+               return -EINVAL;
+
+       if (sata_dev_desc[dev].priv == NULL)
+               return -ENODEV;
+
+       probe_ent = (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
+       port_mmio = (struct sata_port_regs *)probe_ent->port[port].port_mmio;
+
+       return readl(&(port_mmio->ssts)) & SATA_PORT_SSTS_DET_MASK;
+}
+
 /*
  * SATA interface between low level driver and command layer
  */