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{
    "id": 975009,
    "url": "http://patchwork.ozlabs.org/api/patches/975009/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20180926110818.8122-2-Ashish.Kumar@nxp.com/",
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    "msgid": "<20180926110818.8122-2-Ashish.Kumar@nxp.com>",
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    "date": "2018-09-26T11:08:18",
    "name": "[U-Boot,v2] fsl-lsch3: soc: Enable AHB read support for Flexspi controller",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
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    "submitter": {
        "id": 68053,
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        "name": "Ashish Kumar",
        "email": "Ashish.kumar@nxp.com"
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    "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20180926110818.8122-2-Ashish.Kumar@nxp.com/mbox/",
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            "id": 67629,
            "url": "http://patchwork.ozlabs.org/api/series/67629/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=67629",
            "date": "2018-09-26T11:08:18",
            "name": "[U-Boot,v2] fsl-lsch3: soc: Enable AHB read support for Flexspi controller",
            "version": 2,
            "mbox": "http://patchwork.ozlabs.org/series/67629/mbox/"
        }
    ],
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    "check": "pending",
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    "tags": {},
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        "From": "Ashish Kumar <Ashish.Kumar@nxp.com>",
        "To": "u-boot@lists.denx.de",
        "Date": "Wed, 26 Sep 2018 16:38:18 +0530",
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        "Cc": "rajat.srivastava@nxp.com",
        "Subject": "[U-Boot] [PATCH v2] fsl-lsch3: soc: Enable AHB read support for\n\tFlexspi controller",
        "X-BeenThere": "u-boot@lists.denx.de",
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        "Content-Type": "text/plain; charset=\"utf-8\"",
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    },
    "content": "Enable AHB support for Flexspi controller interface meaning\nmemory can be accessed via md command using absolute addresses\n\nSigned-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>\nSigned-off-by: Rajat Srivastava <rajat.srivastava@nxp.com>\nSigned-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>\n---\nv2:\n 1. Rename FSPI to FlexSPI in description and comments\n 2. s/cmd/command\n 3. Add macro and comments to improve readablity of code in soc.c\n 4. Add declaration in soc.h for fspi_ahb_init()\n\n arch/arm/cpu/armv8/fsl-layerscape/Kconfig     | 10 +++++\n arch/arm/cpu/armv8/fsl-layerscape/soc.c       | 44 +++++++++++++++++++\n .../arm/include/asm/arch-fsl-layerscape/soc.h |  7 +++\n 3 files changed, 61 insertions(+)",
    "diff": "diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig\nindex 5280d33ec8..70f26973e9 100644\n--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig\n+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig\n@@ -327,6 +327,16 @@ config SYS_FSPI_AHB_INIT\n \t  performed. Default LUT programmed in AHB mode is Fast Read command\n \t  with 4-byte addressing enabled.\n \n+config FSPI_AHB_EN_4BYTE\n+\tbool \"Enable 4-byte Fast Read command for AHB mode\"\n+\tdepends on NXP_FSPI\n+\tdefault n\n+\thelp\n+\t  The default setting for FlexSPI AHB bus just supports 3-byte addressing.\n+\t  But some FlexSPI flash sizes are up to 64MBytes.\n+\t  This flag enables fast read command for AHB mode and modifies required\n+\t  LUT to support full FlexSPI flash.\n+\n config SYS_CCI400_OFFSET\n \thex \"Offset for CCI400 base\"\n \tdepends on SYS_FSL_HAS_CCI400\ndiff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c\nindex 3f15cb08ff..0a0e112a88 100644\n--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c\n+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c\n@@ -640,6 +640,47 @@ void fsl_lsch2_early_init_f(void)\n }\n #endif\n \n+#ifdef CONFIG_FSPI_AHB_EN_4BYTE\n+int fspi_ahb_init(void)\n+{\n+\t/* Enable 4bytes address support and fast read */\n+\tu32 *fspi_lut, lut_key, *fspi_key;\n+\n+\tfspi_key = (void *)SYS_NXP_FSPI_ADDR + SYS_NXP_FSPI_LUTKEY_BASE_ADDR;\n+\tfspi_lut = (void *)SYS_NXP_FSPI_ADDR + SYS_NXP_FSPI_LUT_BASE_ADDR;\n+\n+\tlut_key = in_be32(fspi_key);\n+\n+\tif (lut_key == SYS_NXP_FSPI_LUTKEY) {\n+\t\t/* That means the register is BE */\n+\t\tout_be32(fspi_key, SYS_NXP_FSPI_LUTKEY);\n+\t\t/* Unlock the lut table */\n+\t\tout_be32(fspi_key + 1, SYS_NXP_FSPI_LUTCR_UNLOCK);\n+\t\t/* Create READ LUT */\n+\t\tout_be32(fspi_lut, 0x0820040c);\n+\t\tout_be32(fspi_lut + 1, 0x24003008);\n+\t\tout_be32(fspi_lut + 2, 0x00000000);\n+\t\t/* Lock the lut table */\n+\t\tout_be32(fspi_key, SYS_NXP_FSPI_LUTKEY);\n+\t\tout_be32(fspi_key + 1, SYS_NXP_FSPI_LUTCR_LOCK);\n+\t} else {\n+\t\t/* That means the register is LE */\n+\t\tout_le32(fspi_key, SYS_NXP_FSPI_LUTKEY);\n+\t\t/* Unlock the lut table */\n+\t\tout_le32(fspi_key + 1, SYS_NXP_FSPI_LUTCR_UNLOCK);\n+\t\t/* Create READ LUT */\n+\t\tout_le32(fspi_lut, 0x0820040c);\n+\t\tout_le32(fspi_lut + 1, 0x24003008);\n+\t\tout_le32(fspi_lut + 2, 0x00000000);\n+\t\t/* Lock the lut table */\n+\t\tout_le32(fspi_key, SYS_NXP_FSPI_LUTKEY);\n+\t\tout_le32(fspi_key + 1, SYS_NXP_FSPI_LUTCR_LOCK);\n+\t}\n+\n+\treturn 0;\n+}\n+#endif\n+\n #ifdef CONFIG_QSPI_AHB_INIT\n /* Enable 4bytes address support and fast read */\n int qspi_ahb_init(void)\n@@ -688,6 +729,9 @@ int board_late_init(void)\n #ifdef CONFIG_QSPI_AHB_INIT\n \tqspi_ahb_init();\n #endif\n+#ifdef CONFIG_FSPI_AHB_EN_4BYTE\n+\tfspi_ahb_init();\n+#endif\n \n \treturn 0;\n }\ndiff --git a/arch/arm/include/asm/arch-fsl-layerscape/soc.h b/arch/arm/include/asm/arch-fsl-layerscape/soc.h\nindex 61b6e4bf07..84450c76ed 100644\n--- a/arch/arm/include/asm/arch-fsl-layerscape/soc.h\n+++ b/arch/arm/include/asm/arch-fsl-layerscape/soc.h\n@@ -102,6 +102,13 @@ void init_pfe_scfg_dcfg_regs(void);\n int qspi_ahb_init(void);\n #endif\n \n+#ifdef CONFIG_FSPI_AHB_EN_4BYTE\n+#define SYS_NXP_FSPI_LUTCR_LOCK\t\t\t0x00000001\n+#define SYS_NXP_FSPI_LUTCR_UNLOCK\t\t0x00000002\n+#define SYS_NXP_FSPI_LUTKEY\t\t\t0x5AF05AF0\n+int fspi_ahb_init(void);\n+#endif\n+\n void cpu_name(char *name);\n #ifdef CONFIG_SYS_FSL_ERRATUM_A009635\n void erratum_a009635(void);\n",
    "prefixes": [
        "U-Boot",
        "v2"
    ]
}