From patchwork Fri Aug 9 20:27:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 11087573 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CE2FE14E5 for ; Fri, 9 Aug 2019 20:29:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B5DB120587 for ; Fri, 9 Aug 2019 20:29:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AA22E205E9; Fri, 9 Aug 2019 20:29:22 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.6 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 Received: from web01.groups.io (web01.groups.io [66.175.222.12]) (using TLSv1.2 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 88B0E20587 for ; Fri, 9 Aug 2019 20:29:21 +0000 (UTC) X-Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by groups.io with SMTP; Fri, 09 Aug 2019 13:29:20 -0700 X-Received: by mail.kernel.org (Postfix) id B5C5F214C6; Fri, 9 Aug 2019 20:29:20 +0000 (UTC) X-Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.126.135]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 34A4C217F4 for ; Fri, 9 Aug 2019 20:29:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 34A4C217F4 X-Received: from threadripper.lan ([149.172.19.189]) by mrelayeu.kundenserver.de (mreue009 [212.227.15.129]) with ESMTPA (Nemesis) id 1MJm8H-1hc39e3beT-00KAEP; Fri, 09 Aug 2019 22:28:59 +0200 From: Arnd Bergmann To: Linuxkernel+Patchwork-Soc via Email Integration Cc: Arnd Bergmann , Miquel Raynal , Richard Weinberger , David Woodhouse , Brian Norris , Marek Vasut , Vignesh Raghavendra , linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org Subject: [PATCH 12/16] mtd: rawnand: remove w90x900 driver Date: Fri, 9 Aug 2019 22:27:40 +0200 Message-Id: <20190809202749.742267-13-arnd@arndb.de> In-Reply-To: <20190809202749.742267-1-arnd@arndb.de> References: <20190809202749.742267-1-arnd@arndb.de> MIME-Version: 1.0 X-Provags-ID: V03:K1:1dFiLoIebeJYq6pDBmmIjBTAbLpn0rrZjbg8agyG6ctRau4CSh9 8cGa8isN8ONuyXuLkLzDdI+KsmCFZkGwMkKq91+uOhe7WIv5eyvKG//0Y5LQg7HfTjDqQmM ZCTv7AsrkpBnz1e5Lp0sP+CtOKJUoHED+ErPAs9HGQGgFH6CFh/B5U4v0+DtiBPRshLvEMb D3dx3MXd8oRsM9+PiaTIg== X-UI-Out-Filterresults: notjunk:1;V03:K0:hEiEdRTXUmI=:YNrsuz68691pEirR6WC3CS DM5MpO5fPoHl4il01FyhVmcoZRcYk+3gJ7nU5lMWUpEdMOUbF7A7NtL7GEgJ/otItulIKemE6 H0AiBPO+0z/5QoQ0guRY5DasEwUo2hkv4rICN/5+EZQWQU8SpPhbXNN4YN4WupAGOgmgmxaUL ftdvESKJ02WeQM0/Tti6ZCSmVjEo77N46sCd982EzzPFdvCu+CzJLvGXHQSQ77xgcqDJ+EsuB yFxZ+jOIThZDPHEnEAHYz7fFAmUYoM9X6rQST00g0rz4klE2YbGYz+La7DzHGnfh9GcCsxmm7 brt5rEYZjMXrPaEhg1qsbkMRsb+7iB5lXI8pS9OcRS+hNr4hfgq2S3IVyI+SZn872sQEo9w2v DHNgofsO97ojjo9xyDE/vH51Z+fh2FWe8Dg/HdOhgP40ezbeugcqiXN3A1Vnr58LhBGfZA1pU 5m3chgES1V3RzxPwkXaTH58vgQ8E3k5TRjwBl4pUWx+kCh+T13pyK7dfpinWcIIVAsfWCrrJz KdlF1VAawRJGb+hNrA5+T1VR8VLF8TCqTQ2kxUS8PW1l0gKiQzk+ToJw5cRDHpbSYbGOewghY aTcPfW7Dznj9XY2JRh1rXF0890RZ7x9ikuC0hih7NjhSOeGT90Fd3hlvONX6vFPih54J7hwQz 5GQ8+L3Jqyehsdik3kl2ZnNO6XMRHMLE8HvdP6fnQN0kHo+zOrgDmLOOMJet6gx4CSDPjne8Z EgITX+mve8L+T1jKYS9cb+affO6cVdtJKRCbfhmnD4rs2SbwwpAjYkHVYdQ= Precedence: Bulk List-Unsubscribe: Sender: patchwork-soc@linux.kernel.org List-Id: Mailing-List: list patchwork-soc@linux.kernel.org; contact patchwork-soc+owner@linux.kernel.org Delivered-To: mailing list patchwork-soc@linux.kernel.org Reply-To: patchwork-soc+owner@linux.kernel.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux.kernel.org; q=dns/txt; s=20140610; t=1565382561; bh=+nVobcnaIklVl4Vq0LSnOyTVGK6bXANR3RwMbsyjCeg=; h=Cc:Content-Type:Date:From:Reply-To:Subject:To; b=kPrQBCJ7EuHIklTwaXAmmLti7s369z7zUB6sGYkYCi+cJ2AMx0/In2VHLpYdKYYDBrB DIOEXJ3iIcHRyh3wgOtLUOMXUbytHMin266uKJ/jckcN460SheNIg8OBL7vs5e45D+M42 o8up8pUsR44xJ7Xy+aRvKzGFBbPkRrRp0Vo= X-Virus-Scanned: ClamAV using ClamSMTP The ARM w90x900 platform is getting removed, so this driver is obsolete. Signed-off-by: Arnd Bergmann Reviewed-by: Boris Brezillon --- drivers/mtd/nand/raw/Kconfig | 8 - drivers/mtd/nand/raw/Makefile | 1 - drivers/mtd/nand/raw/nuc900_nand.c | 304 ----------------------------- 3 files changed, 313 deletions(-) delete mode 100644 drivers/mtd/nand/raw/nuc900_nand.c diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig index 5a711d8beaca..0e5c5e02ee6f 100644 --- a/drivers/mtd/nand/raw/Kconfig +++ b/drivers/mtd/nand/raw/Kconfig @@ -351,14 +351,6 @@ config MTD_NAND_SOCRATES help Enables support for NAND Flash chips wired onto Socrates board. -config MTD_NAND_NUC900 - tristate "Nuvoton NUC9xx/w90p910 NAND controller" - depends on ARCH_W90X900 || COMPILE_TEST - depends on HAS_IOMEM - help - This enables the driver for the NAND Flash on evaluation board based - on w90p910 / NUC9xx. - source "drivers/mtd/nand/raw/ingenic/Kconfig" config MTD_NAND_FSMC diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile index efaf5cd25edc..d7f6c237e37c 100644 --- a/drivers/mtd/nand/raw/Makefile +++ b/drivers/mtd/nand/raw/Makefile @@ -41,7 +41,6 @@ obj-$(CONFIG_MTD_NAND_SH_FLCTL) += sh_flctl.o obj-$(CONFIG_MTD_NAND_MXC) += mxc_nand.o obj-$(CONFIG_MTD_NAND_SOCRATES) += socrates_nand.o obj-$(CONFIG_MTD_NAND_TXX9NDFMC) += txx9ndfmc.o -obj-$(CONFIG_MTD_NAND_NUC900) += nuc900_nand.o obj-$(CONFIG_MTD_NAND_MPC5121_NFC) += mpc5121_nfc.o obj-$(CONFIG_MTD_NAND_VF610_NFC) += vf610_nfc.o obj-$(CONFIG_MTD_NAND_RICOH) += r852.o diff --git a/drivers/mtd/nand/raw/nuc900_nand.c b/drivers/mtd/nand/raw/nuc900_nand.c deleted file mode 100644 index 13bf7b2894d3..000000000000 --- a/drivers/mtd/nand/raw/nuc900_nand.c +++ /dev/null @@ -1,304 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright © 2009 Nuvoton technology corporation. - * - * Wan ZongShun - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#define REG_FMICSR 0x00 -#define REG_SMCSR 0xa0 -#define REG_SMISR 0xac -#define REG_SMCMD 0xb0 -#define REG_SMADDR 0xb4 -#define REG_SMDATA 0xb8 - -#define RESET_FMI 0x01 -#define NAND_EN 0x08 -#define READYBUSY (0x01 << 18) - -#define SWRST 0x01 -#define PSIZE (0x01 << 3) -#define DMARWEN (0x03 << 1) -#define BUSWID (0x01 << 4) -#define ECC4EN (0x01 << 5) -#define WP (0x01 << 24) -#define NANDCS (0x01 << 25) -#define ENDADDR (0x01 << 31) - -#define read_data_reg(dev) \ - __raw_readl((dev)->reg + REG_SMDATA) - -#define write_data_reg(dev, val) \ - __raw_writel((val), (dev)->reg + REG_SMDATA) - -#define write_cmd_reg(dev, val) \ - __raw_writel((val), (dev)->reg + REG_SMCMD) - -#define write_addr_reg(dev, val) \ - __raw_writel((val), (dev)->reg + REG_SMADDR) - -struct nuc900_nand { - struct nand_chip chip; - void __iomem *reg; - struct clk *clk; - spinlock_t lock; -}; - -static inline struct nuc900_nand *mtd_to_nuc900(struct mtd_info *mtd) -{ - return container_of(mtd_to_nand(mtd), struct nuc900_nand, chip); -} - -static const struct mtd_partition partitions[] = { - { - .name = "NAND FS 0", - .offset = 0, - .size = 8 * 1024 * 1024 - }, - { - .name = "NAND FS 1", - .offset = MTDPART_OFS_APPEND, - .size = MTDPART_SIZ_FULL - } -}; - -static unsigned char nuc900_nand_read_byte(struct nand_chip *chip) -{ - unsigned char ret; - struct nuc900_nand *nand = mtd_to_nuc900(nand_to_mtd(chip)); - - ret = (unsigned char)read_data_reg(nand); - - return ret; -} - -static void nuc900_nand_read_buf(struct nand_chip *chip, - unsigned char *buf, int len) -{ - int i; - struct nuc900_nand *nand = mtd_to_nuc900(nand_to_mtd(chip)); - - for (i = 0; i < len; i++) - buf[i] = (unsigned char)read_data_reg(nand); -} - -static void nuc900_nand_write_buf(struct nand_chip *chip, - const unsigned char *buf, int len) -{ - int i; - struct nuc900_nand *nand = mtd_to_nuc900(nand_to_mtd(chip)); - - for (i = 0; i < len; i++) - write_data_reg(nand, buf[i]); -} - -static int nuc900_check_rb(struct nuc900_nand *nand) -{ - unsigned int val; - spin_lock(&nand->lock); - val = __raw_readl(nand->reg + REG_SMISR); - val &= READYBUSY; - spin_unlock(&nand->lock); - - return val; -} - -static int nuc900_nand_devready(struct nand_chip *chip) -{ - struct nuc900_nand *nand = mtd_to_nuc900(nand_to_mtd(chip)); - int ready; - - ready = (nuc900_check_rb(nand)) ? 1 : 0; - return ready; -} - -static void nuc900_nand_command_lp(struct nand_chip *chip, - unsigned int command, - int column, int page_addr) -{ - struct mtd_info *mtd = nand_to_mtd(chip); - struct nuc900_nand *nand = mtd_to_nuc900(mtd); - - if (command == NAND_CMD_READOOB) { - column += mtd->writesize; - command = NAND_CMD_READ0; - } - - write_cmd_reg(nand, command & 0xff); - - if (column != -1 || page_addr != -1) { - - if (column != -1) { - if (chip->options & NAND_BUSWIDTH_16 && - !nand_opcode_8bits(command)) - column >>= 1; - write_addr_reg(nand, column); - write_addr_reg(nand, column >> 8 | ENDADDR); - } - if (page_addr != -1) { - write_addr_reg(nand, page_addr); - - if (chip->options & NAND_ROW_ADDR_3) { - write_addr_reg(nand, page_addr >> 8); - write_addr_reg(nand, page_addr >> 16 | ENDADDR); - } else { - write_addr_reg(nand, page_addr >> 8 | ENDADDR); - } - } - } - - switch (command) { - case NAND_CMD_CACHEDPROG: - case NAND_CMD_PAGEPROG: - case NAND_CMD_ERASE1: - case NAND_CMD_ERASE2: - case NAND_CMD_SEQIN: - case NAND_CMD_RNDIN: - case NAND_CMD_STATUS: - return; - - case NAND_CMD_RESET: - if (chip->legacy.dev_ready) - break; - udelay(chip->legacy.chip_delay); - - write_cmd_reg(nand, NAND_CMD_STATUS); - write_cmd_reg(nand, command); - - while (!nuc900_check_rb(nand)) - ; - - return; - - case NAND_CMD_RNDOUT: - write_cmd_reg(nand, NAND_CMD_RNDOUTSTART); - return; - - case NAND_CMD_READ0: - write_cmd_reg(nand, NAND_CMD_READSTART); - /* fall through */ - - default: - - if (!chip->legacy.dev_ready) { - udelay(chip->legacy.chip_delay); - return; - } - } - - /* Apply this short delay always to ensure that we do wait tWB in - * any case on any machine. */ - ndelay(100); - - while (!chip->legacy.dev_ready(chip)) - ; -} - - -static void nuc900_nand_enable(struct nuc900_nand *nand) -{ - unsigned int val; - spin_lock(&nand->lock); - __raw_writel(RESET_FMI, (nand->reg + REG_FMICSR)); - - val = __raw_readl(nand->reg + REG_FMICSR); - - if (!(val & NAND_EN)) - __raw_writel(val | NAND_EN, nand->reg + REG_FMICSR); - - val = __raw_readl(nand->reg + REG_SMCSR); - - val &= ~(SWRST|PSIZE|DMARWEN|BUSWID|ECC4EN|NANDCS); - val |= WP; - - __raw_writel(val, nand->reg + REG_SMCSR); - - spin_unlock(&nand->lock); -} - -static int nuc900_nand_probe(struct platform_device *pdev) -{ - struct nuc900_nand *nuc900_nand; - struct nand_chip *chip; - struct mtd_info *mtd; - struct resource *res; - - nuc900_nand = devm_kzalloc(&pdev->dev, sizeof(struct nuc900_nand), - GFP_KERNEL); - if (!nuc900_nand) - return -ENOMEM; - chip = &(nuc900_nand->chip); - mtd = nand_to_mtd(chip); - - mtd->dev.parent = &pdev->dev; - spin_lock_init(&nuc900_nand->lock); - - nuc900_nand->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(nuc900_nand->clk)) - return -ENOENT; - clk_enable(nuc900_nand->clk); - - chip->legacy.cmdfunc = nuc900_nand_command_lp; - chip->legacy.dev_ready = nuc900_nand_devready; - chip->legacy.read_byte = nuc900_nand_read_byte; - chip->legacy.write_buf = nuc900_nand_write_buf; - chip->legacy.read_buf = nuc900_nand_read_buf; - chip->legacy.chip_delay = 50; - chip->options = 0; - chip->ecc.mode = NAND_ECC_SOFT; - chip->ecc.algo = NAND_ECC_HAMMING; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - nuc900_nand->reg = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(nuc900_nand->reg)) - return PTR_ERR(nuc900_nand->reg); - - nuc900_nand_enable(nuc900_nand); - - if (nand_scan(chip, 1)) - return -ENXIO; - - mtd_device_register(mtd, partitions, ARRAY_SIZE(partitions)); - - platform_set_drvdata(pdev, nuc900_nand); - - return 0; -} - -static int nuc900_nand_remove(struct platform_device *pdev) -{ - struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev); - - nand_release(&nuc900_nand->chip); - clk_disable(nuc900_nand->clk); - - return 0; -} - -static struct platform_driver nuc900_nand_driver = { - .probe = nuc900_nand_probe, - .remove = nuc900_nand_remove, - .driver = { - .name = "nuc900-fmi", - }, -}; - -module_platform_driver(nuc900_nand_driver); - -MODULE_AUTHOR("Wan ZongShun "); -MODULE_DESCRIPTION("w90p910/NUC9xx nand driver!"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:nuc900-fmi");