From: Mingkai Hu <Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> To: linuxppc-dev-mnsaURCQ41sdnm+yROfE0A@public.gmane.org, spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Cc: kumar.gala-KZfg59tc24xl57MIdRCFDg@public.gmane.org, tie-fei.zang-KZfg59tc24xl57MIdRCFDg@public.gmane.org, Mingkai Hu <Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> Subject: [PATCH v2 3/6] mtd: m25p80: add support to parse the SPI flash's partitions Date: Mon, 2 Aug 2010 15:52:01 +0800 [thread overview] Message-ID: <1280735524-17547-4-git-send-email-Mingkai.hu@freescale.com> (raw) In-Reply-To: <1280735524-17547-3-git-send-email-Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> Signed-off-by: Mingkai Hu <Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> --- v2: - Move the flash partition function from of_spi.c to MTD driver drivers/mtd/devices/m25p80.c | 29 +++++++++++++++++++++++++++++ 1 files changed, 29 insertions(+), 0 deletions(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 81e49a9..5f00075 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -752,6 +752,31 @@ static const struct spi_device_id *__devinit jedec_probe(struct spi_device *spi) return NULL; } +/* + * parse_flash_partition - Parse the flash partition on the SPI bus + * @spi: Pointer to spi_device device + */ +void parse_flash_partition(struct spi_device *spi) +{ + struct mtd_partition *parts; + struct flash_platform_data *pdata; + int nr_parts = 0; + struct device_node *np = spi->dev.of_node; + + nr_parts = of_mtd_parse_partitions(&spi->dev, np, &parts); + if (!nr_parts) + return; + + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return; + + pdata->parts = parts; + pdata->nr_parts = nr_parts; + spi->dev.platform_data = pdata; + + return; +} /* * board specific setup should have ensured the SPI clock used here @@ -771,6 +796,10 @@ static int __devinit m25p_probe(struct spi_device *spi) * a chip ID, try the JEDEC id commands; they'll work for most * newer chips, even if we don't recognize the particular chip. */ + + /* Parse the flash partition */ + parse_flash_partition(spi); + data = spi->dev.platform_data; if (data && data->type) { const struct spi_device_id *plat_id; -- 1.6.4 ------------------------------------------------------------------------------ The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://p.sf.net/sfu/dev2dev-palm
WARNING: multiple messages have this Message-ID (diff)
From: Mingkai Hu <Mingkai.hu@freescale.com> To: linuxppc-dev@ozlabs.org, spi-devel-general@lists.sourceforge.net Cc: kumar.gala@freescale.com, Mingkai Hu <Mingkai.hu@freescale.com> Subject: [PATCH v2 3/6] mtd: m25p80: add support to parse the SPI flash's partitions Date: Mon, 2 Aug 2010 15:52:01 +0800 [thread overview] Message-ID: <1280735524-17547-4-git-send-email-Mingkai.hu@freescale.com> (raw) In-Reply-To: <1280735524-17547-3-git-send-email-Mingkai.hu@freescale.com> Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> --- v2: - Move the flash partition function from of_spi.c to MTD driver drivers/mtd/devices/m25p80.c | 29 +++++++++++++++++++++++++++++ 1 files changed, 29 insertions(+), 0 deletions(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 81e49a9..5f00075 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -752,6 +752,31 @@ static const struct spi_device_id *__devinit jedec_probe(struct spi_device *spi) return NULL; } +/* + * parse_flash_partition - Parse the flash partition on the SPI bus + * @spi: Pointer to spi_device device + */ +void parse_flash_partition(struct spi_device *spi) +{ + struct mtd_partition *parts; + struct flash_platform_data *pdata; + int nr_parts = 0; + struct device_node *np = spi->dev.of_node; + + nr_parts = of_mtd_parse_partitions(&spi->dev, np, &parts); + if (!nr_parts) + return; + + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return; + + pdata->parts = parts; + pdata->nr_parts = nr_parts; + spi->dev.platform_data = pdata; + + return; +} /* * board specific setup should have ensured the SPI clock used here @@ -771,6 +796,10 @@ static int __devinit m25p_probe(struct spi_device *spi) * a chip ID, try the JEDEC id commands; they'll work for most * newer chips, even if we don't recognize the particular chip. */ + + /* Parse the flash partition */ + parse_flash_partition(spi); + data = spi->dev.platform_data; if (data && data->type) { const struct spi_device_id *plat_id; -- 1.6.4
next prev parent reply other threads:[~2010-08-02 7:52 UTC|newest] Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-08-02 7:51 [PATCH v2 0/6] refactor spi_mpc8xxx.c and add eSPI controller support Mingkai Hu 2010-08-02 7:51 ` Mingkai Hu [not found] ` <1280735524-17547-1-git-send-email-Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> 2010-08-02 7:51 ` [PATCH v2 1/6] spi/mpc8xxx: refactor the common code for SPI/eSPI controller Mingkai Hu 2010-08-02 7:51 ` Mingkai Hu [not found] ` <1280735524-17547-2-git-send-email-Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> 2010-08-02 7:52 ` [PATCH v2 2/6] eSPI: add eSPI controller support Mingkai Hu 2010-08-02 7:52 ` Mingkai Hu [not found] ` <1280735524-17547-3-git-send-email-Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> 2010-08-02 7:52 ` Mingkai Hu [this message] 2010-08-02 7:52 ` [PATCH v2 3/6] mtd: m25p80: add support to parse the SPI flash's partitions Mingkai Hu [not found] ` <1280735524-17547-4-git-send-email-Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> 2010-08-02 7:52 ` [PATCH v2 4/6] mtd: m25p80: add a read function to read page by page Mingkai Hu 2010-08-02 7:52 ` Mingkai Hu [not found] ` <1280735524-17547-5-git-send-email-Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> 2010-08-02 7:52 ` [PATCH v2 5/6] powerpc/of: add eSPI controller dts bindings Mingkai Hu 2010-08-02 7:52 ` Mingkai Hu [not found] ` <1280735524-17547-6-git-send-email-Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> 2010-08-02 7:52 ` [PATCH v2 6/6] DTS: add SPI flash(s25fl128p01) support on p4080ds and mpc8536ds board Mingkai Hu 2010-08-02 7:52 ` Mingkai Hu [not found] ` <1280735524-17547-7-git-send-email-Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org> 2010-08-10 7:10 ` Grant Likely 2010-08-10 7:10 ` Grant Likely [not found] ` <AANLkTinzea7-k3Wd6EsAy+ipThHMhkpMF3pCP7g_6O6J-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2010-09-02 8:30 ` Hu Mingkai-B21284 2010-09-02 8:30 ` Hu Mingkai-B21284 2010-08-10 7:00 ` [PATCH v2 4/6] mtd: m25p80: add a read function to read page by page Grant Likely 2010-08-10 7:00 ` Grant Likely 2010-08-10 13:44 ` [spi-devel-general] " David Brownell 2010-08-10 13:44 ` David Brownell 2010-09-02 9:04 ` Hu Mingkai-B21284 2010-09-02 9:04 ` Hu Mingkai-B21284 2010-08-10 6:56 ` [PATCH v2 3/6] mtd: m25p80: add support to parse the SPI flash's partitions Grant Likely 2010-08-10 6:56 ` Grant Likely 2010-08-10 7:14 ` [spi-devel-general] " David Brownell 2010-08-10 7:14 ` David Brownell [not found] ` <796604.30863.qm-g47maUHHHF9eqboJWQvT7/u2YVrzzGjVVpNB7YpNyf8@public.gmane.org> 2010-08-10 7:16 ` Grant Likely 2010-08-10 7:16 ` [spi-devel-general] " Grant Likely [not found] ` <AANLkTi=FGf9gbWDkO4qs01Z+qkip+Zm11=Jc4wHu3G8b-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2010-08-10 8:29 ` Joakim Tjernlund [not found] ` <OF0D24DC16.E1FE65D2-ONC125777B.002E544A-C125777B.002EA7C2-SNLAxHN9vbcOP4wsBPIw7w@public.gmane.org> 2010-08-10 14:56 ` Grant Likely 2010-08-10 14:56 ` [spi-devel-general] " Grant Likely [not found] ` <AANLkTinYYTj+dR6ckPoShHKZTUmENEA1O-DYP9mjnWrs-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2010-08-10 16:01 ` Anton Vorontsov 2010-08-10 16:01 ` [spi-devel-general] " Anton Vorontsov 2010-09-02 8:57 ` Hu Mingkai-B21284 2010-09-02 8:57 ` Hu Mingkai-B21284 2010-08-10 17:23 ` Joakim Tjernlund 2010-08-10 17:23 ` [spi-devel-general] " Joakim Tjernlund [not found] ` <OFF5EA512A.075E51C6-ONC125777B.005D9750-C125777B.005F8CAF-SNLAxHN9vbcOP4wsBPIw7w@public.gmane.org> 2010-08-10 18:27 ` Grant Likely 2010-08-10 18:27 ` [spi-devel-general] " Grant Likely [not found] ` <AANLkTi=EpjPC8Hf6dM1att8Mjg5vmfQxs2=4aUTYTrUL-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2010-09-02 8:46 ` Hu Mingkai-B21284 2010-09-02 8:46 ` [spi-devel-general] " Hu Mingkai-B21284 2010-08-10 6:44 ` [PATCH v2 2/6] eSPI: add eSPI controller support Grant Likely 2010-08-10 6:44 ` Grant Likely [not found] ` <AANLkTin3W4++cAFcksVBX3QxeV8QF3d5T2tGy_KbEkRs-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2010-09-02 8:28 ` Hu Mingkai-B21284 2010-09-02 8:28 ` Hu Mingkai-B21284 2010-08-10 6:40 ` [PATCH v2 1/6] spi/mpc8xxx: refactor the common code for SPI/eSPI controller Grant Likely 2010-08-10 6:40 ` Grant Likely 2010-09-02 8:27 ` Hu Mingkai-B21284 2010-09-02 8:27 ` Hu Mingkai-B21284
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