This is not used since this commit:
8d1e3cb1400 powerpc: mpc83xx: remove MPC8360ERDK, EMPC8360EMDS support
Drop the driver and Kconfig option.
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/mtd/nand/raw/Makefile | 1 - drivers/mtd/nand/raw/fsl_upm.c | 187 --------------------------------- include/linux/mtd/fsl_upm.h | 44 -------- 3 files changed, 232 deletions(-) delete mode 100644 drivers/mtd/nand/raw/fsl_upm.c delete mode 100644 include/linux/mtd/fsl_upm.h
diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile index 4c59903aa8c..e8764cf358b 100644 --- a/drivers/mtd/nand/raw/Makefile +++ b/drivers/mtd/nand/raw/Makefile @@ -56,7 +56,6 @@ obj-$(CONFIG_NAND_DENALI) += denali.o obj-$(CONFIG_NAND_DENALI_DT) += denali_dt.o obj-$(CONFIG_NAND_FSL_ELBC) += fsl_elbc_nand.o obj-$(CONFIG_NAND_FSL_IFC) += fsl_ifc_nand.o -obj-$(CONFIG_NAND_FSL_UPM) += fsl_upm.o obj-$(CONFIG_NAND_FSMC) += fsmc_nand.o obj-$(CONFIG_NAND_KB9202) += kb9202_nand.o obj-$(CONFIG_NAND_KIRKWOOD) += kirkwood_nand.o diff --git a/drivers/mtd/nand/raw/fsl_upm.c b/drivers/mtd/nand/raw/fsl_upm.c deleted file mode 100644 index 91cc1339537..00000000000 --- a/drivers/mtd/nand/raw/fsl_upm.c +++ /dev/null @@ -1,187 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * FSL UPM NAND driver - * - * Copyright (C) 2007 MontaVista Software, Inc. - * Anton Vorontsov avorontsov@ru.mvista.com - */ - -#include <config.h> -#include <common.h> -#include <log.h> -#include <asm/io.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/rawnand.h> -#include <linux/mtd/fsl_upm.h> -#include <nand.h> - -static void fsl_upm_start_pattern(struct fsl_upm *upm, u32 pat_offset) -{ - clrsetbits_be32(upm->mxmr, MxMR_MAD_MSK, MxMR_OP_RUNP | pat_offset); - (void)in_be32(upm->mxmr); -} - -static void fsl_upm_end_pattern(struct fsl_upm *upm) -{ - clrbits_be32(upm->mxmr, MxMR_OP_RUNP); - - while (in_be32(upm->mxmr) & MxMR_OP_RUNP) - eieio(); -} - -static void fsl_upm_run_pattern(struct fsl_upm *upm, int width, - void __iomem *io_addr, u32 mar) -{ - out_be32(upm->mar, mar); - (void)in_be32(upm->mar); - switch (width) { - case 8: - out_8(io_addr, 0x0); - break; - case 16: - out_be16(io_addr, 0x0); - break; - case 32: - out_be32(io_addr, 0x0); - break; - } -} - -static void fun_wait(struct fsl_upm_nand *fun) -{ - if (fun->dev_ready) { - while (!fun->dev_ready(fun->chip_nr)) - debug("unexpected busy state\n"); - } else { - /* - * If the R/B pin is not connected, - * a short delay is necessary. - */ - udelay(1); - } -} - -#if CONFIG_SYS_NAND_MAX_CHIPS > 1 -static void fun_select_chip(struct mtd_info *mtd, int chip_nr) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_upm_nand *fun = nand_get_controller_data(chip); - - if (chip_nr >= 0) { - fun->chip_nr = chip_nr; - chip->IO_ADDR_R = chip->IO_ADDR_W = - fun->upm.io_addr + fun->chip_offset * chip_nr; - } else if (chip_nr == -1) { - chip->cmd_ctrl(mtd, NAND_CMD_NONE, 0 | NAND_CTRL_CHANGE); - } -} -#endif - -static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_upm_nand *fun = nand_get_controller_data(chip); - void __iomem *io_addr; - u32 mar; - - if (!(ctrl & fun->last_ctrl)) { - fsl_upm_end_pattern(&fun->upm); - - if (cmd == NAND_CMD_NONE) - return; - - fun->last_ctrl = ctrl & (NAND_ALE | NAND_CLE); - } - - if (ctrl & NAND_CTRL_CHANGE) { - if (ctrl & NAND_ALE) - fsl_upm_start_pattern(&fun->upm, fun->upm_addr_offset); - else if (ctrl & NAND_CLE) - fsl_upm_start_pattern(&fun->upm, fun->upm_cmd_offset); - } - - mar = cmd << (32 - fun->width); - io_addr = fun->upm.io_addr; -#if CONFIG_SYS_NAND_MAX_CHIPS > 1 - if (fun->chip_nr > 0) { - io_addr += fun->chip_offset * fun->chip_nr; - if (fun->upm_mar_chip_offset) - mar |= fun->upm_mar_chip_offset * fun->chip_nr; - } -#endif - fsl_upm_run_pattern(&fun->upm, fun->width, io_addr, mar); - - /* - * Some boards/chips needs this. At least the MPC8360E-RDK - * needs it. Probably weird chip, because I don't see any - * need for this on MPC8555E + Samsung K9F1G08U0A. Usually - * here are 0-2 unexpected busy states per block read. - */ - if (fun->wait_flags & FSL_UPM_WAIT_RUN_PATTERN) - fun_wait(fun); -} - -static u8 upm_nand_read_byte(struct mtd_info *mtd) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - - return in_8(chip->IO_ADDR_R); -} - -static void upm_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) -{ - int i; - struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_upm_nand *fun = nand_get_controller_data(chip); - - for (i = 0; i < len; i++) { - out_8(chip->IO_ADDR_W, buf[i]); - if (fun->wait_flags & FSL_UPM_WAIT_WRITE_BYTE) - fun_wait(fun); - } - - if (fun->wait_flags & FSL_UPM_WAIT_WRITE_BUFFER) - fun_wait(fun); -} - -static void upm_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) -{ - int i; - struct nand_chip *chip = mtd_to_nand(mtd); - - for (i = 0; i < len; i++) - buf[i] = in_8(chip->IO_ADDR_R); -} - -static int nand_dev_ready(struct mtd_info *mtd) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_upm_nand *fun = nand_get_controller_data(chip); - - return fun->dev_ready(fun->chip_nr); -} - -int fsl_upm_nand_init(struct nand_chip *chip, struct fsl_upm_nand *fun) -{ - if (fun->width != 8 && fun->width != 16 && fun->width != 32) - return -ENOSYS; - - fun->last_ctrl = NAND_CLE; - - nand_set_controller_data(chip, fun); - chip->chip_delay = fun->chip_delay; - chip->ecc.mode = NAND_ECC_SOFT; - chip->cmd_ctrl = fun_cmd_ctrl; -#if CONFIG_SYS_NAND_MAX_CHIPS > 1 - chip->select_chip = fun_select_chip; -#endif - chip->read_byte = upm_nand_read_byte; - chip->read_buf = upm_nand_read_buf; - chip->write_buf = upm_nand_write_buf; - if (fun->dev_ready) - chip->dev_ready = nand_dev_ready; - - return 0; -} diff --git a/include/linux/mtd/fsl_upm.h b/include/linux/mtd/fsl_upm.h deleted file mode 100644 index 9999993543b..00000000000 --- a/include/linux/mtd/fsl_upm.h +++ /dev/null @@ -1,44 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * FSL UPM NAND driver - * - * Copyright (C) 2007 MontaVista Software, Inc. - * Anton Vorontsov avorontsov@ru.mvista.com - */ - -#ifndef __LINUX_MTD_NAND_FSL_UPM -#define __LINUX_MTD_NAND_FSL_UPM - -#include <linux/mtd/rawnand.h> - -#define FSL_UPM_WAIT_RUN_PATTERN 0x1 -#define FSL_UPM_WAIT_WRITE_BYTE 0x2 -#define FSL_UPM_WAIT_WRITE_BUFFER 0x4 - -struct fsl_upm { - void __iomem *mdr; - void __iomem *mxmr; - void __iomem *mar; - void __iomem *io_addr; -}; - -struct fsl_upm_nand { - struct fsl_upm upm; - - int width; - int upm_cmd_offset; - int upm_addr_offset; - int upm_mar_chip_offset; - int wait_flags; - int (*dev_ready)(int chip_nr); - int chip_delay; - int chip_offset; - int chip_nr; - - /* no need to fill */ - int last_ctrl; -}; - -extern int fsl_upm_nand_init(struct nand_chip *chip, struct fsl_upm_nand *fun); - -#endif