From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752869AbcHOHLM (ORCPT ); Mon, 15 Aug 2016 03:11:12 -0400 Received: from mga01.intel.com ([192.55.52.88]:13364 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751913AbcHOHKt (ORCPT ); Mon, 15 Aug 2016 03:10:49 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.28,524,1464678000"; d="scan'208";a="1025505975" From: Mika Westerberg To: linux-mtd@lists.infradead.org Cc: Brian Norris , David Woodhouse , Lee Jones , Peter Tyser , key.seong.lim@intel.com, Mika Westerberg , linux-kernel@vger.kernel.org Subject: [PATCH v3 0/3] spi-nor: Add support for Intel SPI serial flash controller Date: Mon, 15 Aug 2016 10:10:41 +0300 Message-Id: <1471245044-12767-1-git-send-email-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.8.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, This is third version of the series. Previous versions can be found: v2: http://lists.infradead.org/pipermail/linux-mtd/2016-June/068277.html v1: https://lkml.org/lkml/2016/6/14/269 This series adds support for the Intel SPI serial flash controller found on many recent Intel CPUs including Baytrail and Braswell. This driver makes it possible to access the BIOS and other platform data which is stored on the SPI serial flash. It is also possible to upgrade the BIOS using this driver if it has not been protected by special hardware bits. The patch [1/3] includes documentation how to upgrade BIOS on MinnowBoard MAX. Since poking the SPI serial flash can brick the machine, this driver can only be enabled when CONFIG_EXPERT=y and even then it will remain read-only unless instructed othwerwise by module parameter. Lee can you ACK/NACK the MFD parts so that we can merge the whole series through the MTD tree? Changes from v2: * Rebased on top of v4.8-rc2 * Updated intel_spi_read/write() according spi-nor core changes which drops retlen parameter and returns number of bytes read/written. Changes from v1: [1/3] spi-nor: Add support for Intel SPI serial flash controller * Older hardware does not support 64k erase command so added erase_64k flag which is set only for Broxton (BXT). * Fix protection range offset for Broxton. Now there is ispi->pregs pointing to the start of the protection registers. * Change naming of constants from BCR_BYT -> BYT_BCR and so on. [2/3] mfd: lpc_ich: Add support for SPI serial flash host controller * Drop lpc_ich_finalize_spi_cell() and initialize cell directly in lpc_ich_init_spi(). * Use info->type in switch in lpc_ich_init_spi(). * Add defines for magic numbers used in lpc_ich_init_spi(). * Use PLATFORM_DEVID_NONE with mfd_add_devices(). [3/3] mfd: lpc_ich: Add support for Intel Apollo Lake SoC * No changes Mika Westerberg (3): spi-nor: Add support for Intel SPI serial flash controller mfd: lpc_ich: Add support for SPI serial flash host controller mfd: lpc_ich: Add support for Intel Apollo Lake SoC Documentation/mtd/intel-spi.txt | 88 ++++ drivers/mfd/lpc_ich.c | 131 ++++++ drivers/mtd/spi-nor/Kconfig | 20 + drivers/mtd/spi-nor/Makefile | 2 + drivers/mtd/spi-nor/intel-spi-platform.c | 57 +++ drivers/mtd/spi-nor/intel-spi.c | 780 +++++++++++++++++++++++++++++++ drivers/mtd/spi-nor/intel-spi.h | 24 + include/linux/mfd/lpc_ich.h | 3 + include/linux/platform_data/intel-spi.h | 31 ++ 9 files changed, 1136 insertions(+) create mode 100644 Documentation/mtd/intel-spi.txt create mode 100644 drivers/mtd/spi-nor/intel-spi-platform.c create mode 100644 drivers/mtd/spi-nor/intel-spi.c create mode 100644 drivers/mtd/spi-nor/intel-spi.h create mode 100644 include/linux/platform_data/intel-spi.h -- 2.8.1