Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752032AbbLMWwW (ORCPT ); Sun, 13 Dec 2015 17:52:22 -0500 Received: from proxima.lp0.eu ([81.2.80.65]:40486 "EHLO proxima.lp0.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750991AbbLMWwV (ORCPT ); Sun, 13 Dec 2015 17:52:21 -0500 Subject: [PATCH linux-next v4 10/11] mtd: bcm63xxpart: Move NOR flash layout to a separate function To: Ralf Baechle , David Woodhouse , Brian Norris , Kevin Cernekee , Florian Fainelli , Jonas Gorski References: <566DF43B.5010400@simon.arlott.org.uk> Cc: Linux Kernel Mailing List , MIPS Mailing List , MTD Maling List From: Simon Arlott Message-ID: <566DF69F.5090700@simon.arlott.org.uk> Date: Sun, 13 Dec 2015 22:52:15 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: <566DF43B.5010400@simon.arlott.org.uk> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3132 Lines: 123 Move the NOR flash layout to a separate function to allow the NAND flash layout to be supported. Signed-off-by: Simon Arlott --- v4: New patch. drivers/mtd/bcm63xxpart.c | 54 ++++++++++++++++++++++++++++------------------- 1 file changed, 32 insertions(+), 22 deletions(-) diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c index 41aa202..26c38a1 100644 --- a/drivers/mtd/bcm63xxpart.c +++ b/drivers/mtd/bcm63xxpart.c @@ -124,13 +124,11 @@ static int bcm63xx_read_image_tag(struct mtd_info *master, const char *name, return 1; } -static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, - const struct mtd_partition **pparts, - struct mtd_part_parser_data *data) +static int bcm63xx_parse_cfe_nor_partitions(struct mtd_info *master, + const struct mtd_partition **pparts, struct bcm963xx_nvram *nvram) { /* CFE, NVRAM and global Linux are always present */ int nrparts = 3, curpart = 0; - struct bcm963xx_nvram *nvram = NULL; struct bcm_tag *buf = NULL; struct mtd_partition *parts; int ret; @@ -141,17 +139,6 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, int i; bool rootfs_first = false; - if (bcm63xx_detect_cfe(master)) - return -EINVAL; - - nvram = vzalloc(sizeof(*nvram)); - if (!nvram) - return -ENOMEM; - - ret = bcm63xx_read_nvram(master, nvram); - if (ret) - goto out; - cfe_erasesize = max_t(uint32_t, master->erasesize, BCM963XX_CFE_BLOCK_SIZE); @@ -159,12 +146,9 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, nvramlen = nvram->psi_size * SZ_1K; nvramlen = roundup(nvramlen, cfe_erasesize); - /* Allocate memory for buffer */ buf = vmalloc(sizeof(struct bcm_tag)); - if (!buf) { - ret = -ENOMEM; - goto out; - } + if (!buf) + return -ENOMEM; /* Get the tag */ ret = bcm63xx_read_image_tag(master, "rootfs", cfelen, buf); @@ -234,7 +218,6 @@ invalid_tag: if (kernellen > 0) nrparts++; - /* Ask kernel for more memory */ parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL); if (!parts) { ret = -ENOMEM; @@ -292,13 +275,40 @@ invalid_tag: ret = 0; out: - vfree(nvram); vfree(buf); if (ret) return ret; return nrparts; +} + +static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, + const struct mtd_partition **pparts, + struct mtd_part_parser_data *data) +{ + struct bcm963xx_nvram *nvram = NULL; + int ret; + + if (bcm63xx_detect_cfe(master)) + return -EINVAL; + + nvram = vzalloc(sizeof(*nvram)); + if (!nvram) + return -ENOMEM; + + ret = bcm63xx_read_nvram(master, nvram); + if (ret) + goto out; + + if (!mtd_type_is_nand(master)) + ret = bcm63xx_parse_cfe_nor_partitions(master, pparts, nvram); + else + ret = -EINVAL; + +out: + vfree(nvram); + return ret; }; static struct mtd_part_parser bcm63xx_cfe_parser = { -- 2.1.4 -- Simon Arlott -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/