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
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next prev parent reply other threads:[~2010-08-02 7:52 UTC|newest]
Thread overview: 26+ 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
[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
[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
[not found] ` <1280735524-17547-3-git-send-email-Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2010-08-02 7:52 ` Mingkai Hu [this message]
[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
[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
[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
[not found] ` <1280735524-17547-7-git-send-email-Mingkai.hu-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
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
2010-08-10 7:00 ` [PATCH v2 4/6] mtd: m25p80: add a read function to read page by page Grant Likely
2010-08-10 13:44 ` [spi-devel-general] " David Brownell
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 7:14 ` [spi-devel-general] " David Brownell
[not found] ` <796604.30863.qm-g47maUHHHF9eqboJWQvT7/u2YVrzzGjVVpNB7YpNyf8@public.gmane.org>
2010-08-10 7:16 ` 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
[not found] ` <AANLkTinYYTj+dR6ckPoShHKZTUmENEA1O-DYP9mjnWrs-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-08-10 16:01 ` Anton Vorontsov
2010-09-02 8:57 ` [spi-devel-general] " Hu Mingkai-B21284
2010-08-10 17:23 ` Joakim Tjernlund
[not found] ` <OFF5EA512A.075E51C6-ONC125777B.005D9750-C125777B.005F8CAF-SNLAxHN9vbcOP4wsBPIw7w@public.gmane.org>
2010-08-10 18:27 ` Grant Likely
[not found] ` <AANLkTi=EpjPC8Hf6dM1att8Mjg5vmfQxs2=4aUTYTrUL-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-09-02 8:46 ` Hu Mingkai-B21284
2010-08-10 6:44 ` [PATCH v2 2/6] eSPI: add eSPI controller support Grant Likely
[not found] ` <AANLkTin3W4++cAFcksVBX3QxeV8QF3d5T2tGy_KbEkRs-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
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
2010-09-02 8:27 ` Hu Mingkai-B21284
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