karo: merge with Ka-Ro specific tree for secure boot support

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

diff --git a/drivers/block/dwc_ahsata.c b/drivers/block/dwc_ahsata.c
index c9b71f7e1f92b3afc6fc26082140f9dd7d2aca47..01a4148a5201ebe4738fdd399d5354068e4c614c 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 {
@@ -447,10 +432,13 @@ static int ahci_exec_ata_cmd(struct ahci_probe_ent *probe_ent,
        if (buf && buf_len)
                sg_count = ahci_fill_sg(probe_ent, port, buf, buf_len);
        opts = (sizeof(struct sata_fis_h2d) >> 2) | (sg_count << 16);
-       if (is_write)
+       if (is_write) {
                opts |= 0x40;
+               flush_cache((ulong)buf, buf_len);
+       }
        ahci_fill_cmd_slot(pp, cmd_slot, opts);
 
+       flush_cache((int)(pp->cmd_slot), AHCI_PORT_PRIV_DMA_SZ);
        writel_with_flush(1 << cmd_slot, &(port_mmio->ci));
 
        if (waiting_for_cmd_completed((u8 *)&(port_mmio->ci),
@@ -458,8 +446,12 @@ static int ahci_exec_ata_cmd(struct ahci_probe_ent *probe_ent,
                printf("timeout exit!\n");
                return -1;
        }
+       invalidate_dcache_range((int)(pp->cmd_slot),
+                               (int)(pp->cmd_slot)+AHCI_PORT_PRIV_DMA_SZ);
        debug("ahci_exec_ata_cmd: %d byte transferred.\n",
              pp->cmd_slot->status);
+       if (!is_write)
+               invalidate_dcache_range((ulong)buf, (ulong)buf+buf_len);
 
        return buf_len;
 }
@@ -468,7 +460,8 @@ static void ahci_set_feature(u8 dev, u8 port)
 {
        struct ahci_probe_ent *probe_ent =
                (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
-       struct sata_fis_h2d h2d, *cfis = &h2d;
+       struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
+       struct sata_fis_h2d *cfis = &h2d;
 
        memset(cfis, 0, sizeof(struct sata_fis_h2d));
        cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
@@ -566,6 +559,10 @@ int init_sata(int dev)
        u32 linkmap;
        struct ahci_probe_ent *probe_ent = NULL;
 
+#if defined(CONFIG_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;
@@ -595,6 +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]);
@@ -615,7 +635,8 @@ static void dwc_ahsata_identify(int dev, u16 *id)
 {
        struct ahci_probe_ent *probe_ent =
                (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
-       struct sata_fis_h2d h2d, *cfis = &h2d;
+       struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
+       struct sata_fis_h2d *cfis = &h2d;
        u8 port = probe_ent->hard_port_no;
 
        memset(cfis, 0, sizeof(struct sata_fis_h2d));
@@ -645,7 +666,8 @@ static u32 dwc_ahsata_rw_cmd(int dev, u32 start, u32 blkcnt,
 {
        struct ahci_probe_ent *probe_ent =
                (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
-       struct sata_fis_h2d h2d, *cfis = &h2d;
+       struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
+       struct sata_fis_h2d *cfis = &h2d;
        u8 port = probe_ent->hard_port_no;
        u32 block;
 
@@ -675,7 +697,8 @@ void dwc_ahsata_flush_cache(int dev)
 {
        struct ahci_probe_ent *probe_ent =
                (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
-       struct sata_fis_h2d h2d, *cfis = &h2d;
+       struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
+       struct sata_fis_h2d *cfis = &h2d;
        u8 port = probe_ent->hard_port_no;
 
        memset(cfis, 0, sizeof(struct sata_fis_h2d));
@@ -692,7 +715,8 @@ static u32 dwc_ahsata_rw_cmd_ext(int dev, u32 start, lbaint_t blkcnt,
 {
        struct ahci_probe_ent *probe_ent =
                (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
-       struct sata_fis_h2d h2d, *cfis = &h2d;
+       struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
+       struct sata_fis_h2d *cfis = &h2d;
        u8 port = probe_ent->hard_port_no;
        u64 block;
 
@@ -728,7 +752,8 @@ u32 dwc_ahsata_rw_ncq_cmd(int dev, u32 start, lbaint_t blkcnt,
 {
        struct ahci_probe_ent *probe_ent =
                (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
-       struct sata_fis_h2d h2d, *cfis = &h2d;
+       struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
+       struct sata_fis_h2d *cfis = &h2d;
        u8 port = probe_ent->hard_port_no;
        u64 block;
 
@@ -769,7 +794,8 @@ void dwc_ahsata_flush_cache_ext(int dev)
 {
        struct ahci_probe_ent *probe_ent =
                (struct ahci_probe_ent *)sata_dev_desc[dev].priv;
-       struct sata_fis_h2d h2d, *cfis = &h2d;
+       struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
+       struct sata_fis_h2d *cfis = &h2d;
        u8 port = probe_ent->hard_port_no;
 
        memset(cfis, 0, sizeof(struct sata_fis_h2d));
@@ -861,6 +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
  */
@@ -912,7 +955,9 @@ int scan_sata(int dev)
        u8 port = probe_ent->hard_port_no;
        block_dev_desc_t *pdev = &(sata_dev_desc[dev]);
 
-       id = (u16 *)malloc(ATA_ID_WORDS * 2);
+       id = (u16 *)memalign(ARCH_DMA_MINALIGN,
+                               roundup(ARCH_DMA_MINALIGN,
+                                       (ATA_ID_WORDS * 2)));
        if (!id) {
                printf("id malloc failed\n\r");
                return -1;