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GET /api/patches/810731/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 810731,
    "url": "http://patchwork.ozlabs.org/api/patches/810731/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/1504717175-11844-1-git-send-email-suneelglinux@gmail.com/",
    "project": {
        "id": 18,
        "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api",
        "name": "U-Boot",
        "link_name": "uboot",
        "list_id": "u-boot.lists.denx.de",
        "list_email": "u-boot@lists.denx.de",
        "web_url": null,
        "scm_url": null,
        "webscm_url": null,
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<1504717175-11844-1-git-send-email-suneelglinux@gmail.com>",
    "list_archive_url": null,
    "date": "2017-09-06T16:59:35",
    "name": "[U-Boot,v1] drivers: ahci: write upper 32 bits for clb and fis registers",
    "commit_ref": null,
    "pull_url": null,
    "state": "changes-requested",
    "archived": false,
    "hash": "e06692d138646b7062718a45dd4c8abf6c316ea8",
    "submitter": {
        "id": 72058,
        "url": "http://patchwork.ozlabs.org/api/people/72058/?format=api",
        "name": "Suneel Garapati",
        "email": "suneelglinux@gmail.com"
    },
    "delegate": {
        "id": 3651,
        "url": "http://patchwork.ozlabs.org/api/users/3651/?format=api",
        "username": "trini",
        "first_name": "Tom",
        "last_name": "Rini",
        "email": "trini@ti.com"
    },
    "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/1504717175-11844-1-git-send-email-suneelglinux@gmail.com/mbox/",
    "series": [
        {
            "id": 1856,
            "url": "http://patchwork.ozlabs.org/api/series/1856/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=1856",
            "date": "2017-09-06T16:59:35",
            "name": "[U-Boot,v1] drivers: ahci: write upper 32 bits for clb and fis registers",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/1856/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/810731/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/810731/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<u-boot-bounces@lists.denx.de>",
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            "from lists.denx.de (dione.denx.de [81.169.180.215])\n\tby ozlabs.org (Postfix) with ESMTP id 3xnVF02Lymz9t2d\n\tfor <incoming@patchwork.ozlabs.org>;\n\tThu,  7 Sep 2017 02:59:48 +1000 (AEST)",
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        "X-Received": "by 10.98.33.134 with SMTP id o6mr7931207pfj.103.1504717181155;\n\tWed, 06 Sep 2017 09:59:41 -0700 (PDT)",
        "From": "Suneel Garapati <suneelglinux@gmail.com>",
        "To": "Bin Meng <bmeng.cn@gmail.com>",
        "Date": "Wed,  6 Sep 2017 09:59:35 -0700",
        "Message-Id": "<1504717175-11844-1-git-send-email-suneelglinux@gmail.com>",
        "X-Mailer": "git-send-email 2.7.4",
        "Cc": "u-boot@lists.denx.de, Michal Simek <michal.simek@xilinx.com>",
        "Subject": "[U-Boot] [PATCH v1] drivers: ahci: write upper 32 bits for clb and\n\tfis registers",
        "X-BeenThere": "u-boot@lists.denx.de",
        "X-Mailman-Version": "2.1.18",
        "Precedence": "list",
        "List-Id": "U-Boot discussion <u-boot.lists.denx.de>",
        "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n\t<mailto:u-boot-request@lists.denx.de?subject=unsubscribe>",
        "List-Archive": "<http://lists.denx.de/pipermail/u-boot/>",
        "List-Post": "<mailto:u-boot@lists.denx.de>",
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        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=\"utf-8\"",
        "Content-Transfer-Encoding": "base64",
        "Errors-To": "u-boot-bounces@lists.denx.de",
        "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>"
    },
    "content": "If 64-bit capability is supported, commandlistbase and fis base\nshould be split as lower32 and upper32. upper32 should be\nwritten to PORT_(LST/FIS)_ADDR_HI.\n\nSigned-off-by: Suneel Garapati <suneelglinux@gmail.com>\n---\n\nChanges v1:\n - add macro definitions for LOWER32, UPPER32\n\n\n drivers/ata/ahci.c | 14 ++++++++++++--\n include/ahci.h     |  1 +\n 2 files changed, 13 insertions(+), 2 deletions(-)",
    "diff": "diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c\nindex 5e4df19..178d9a7 100644\n--- a/drivers/ata/ahci.c\n+++ b/drivers/ata/ahci.c\n@@ -27,6 +27,9 @@\n #include <dm/device-internal.h>\n #include <dm/lists.h>\n \n+#define LOWER32(val)\t(u32)((u64)(val) & 0xFFFFFFFF)\n+#define UPPER32(val)\t(u32)(((u64)(val) & 0xFFFFFFFF00000000ULL) >> 32)\n+\n static int ata_io_flush(struct ahci_uc_priv *uc_priv, u8 port);\n \n #ifndef CONFIG_DM_SCSI\n@@ -607,10 +610,17 @@ static int ahci_port_start(struct ahci_uc_priv *uc_priv, u8 port)\n \tpp->cmd_tbl_sg =\n \t\t\t(struct ahci_sg *)(uintptr_t)virt_to_phys((void *)mem);\n \n-\twritel_with_flush((unsigned long)pp->cmd_slot,\n+\tif (uc_priv->cap & HOST_CAP_64)\n+\t\twritel_with_flush(cpu_to_le32(UPPER32(pp->cmd_slot)),\n+\t\t\t\t  port_mmio + PORT_LST_ADDR_HI);\n+\twritel_with_flush(cpu_to_le32(LOWER32(pp->cmd_slot)),\n \t\t\t  port_mmio + PORT_LST_ADDR);\n \n-\twritel_with_flush(pp->rx_fis, port_mmio + PORT_FIS_ADDR);\n+\tif (uc_priv->cap & HOST_CAP_64)\n+\t\twritel_with_flush(cpu_to_le32(UPPER32(pp->rx_fis)),\n+\t\t\t\t  port_mmio + PORT_FIS_ADDR_HI);\n+\twritel_with_flush(cpu_to_le32(LOWER32(pp->rx_fis)),\n+\t\t\t  port_mmio + PORT_FIS_ADDR);\n \n #ifdef CONFIG_SUNXI_AHCI\n \tsunxi_dma_init(port_mmio);\ndiff --git a/include/ahci.h b/include/ahci.h\nindex 33171b7..80e7f13 100644\n--- a/include/ahci.h\n+++ b/include/ahci.h\n@@ -40,6 +40,7 @@\n #define HOST_RESET\t\t(1 << 0)  /* reset controller; self-clear */\n #define HOST_IRQ_EN\t\t(1 << 1)  /* global IRQ enable */\n #define HOST_AHCI_EN\t\t(1 << 31) /* AHCI enabled */\n+#define HOST_CAP_64\t\t(1 << 31) /* 64bit addressing capability */\n \n /* Registers for each SATA port */\n #define PORT_LST_ADDR\t\t0x00 /* command list DMA addr */\n",
    "prefixes": [
        "U-Boot",
        "v1"
    ]
}