mtd: remove the ppchameleonevb NAND driver
authorArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Fri, 15 Mar 2013 11:50:51 +0000 (13:50 +0200)
committerDavid Woodhouse <David.Woodhouse@intel.com>
Fri, 5 Apr 2013 12:15:12 +0000 (13:15 +0100)
This driver has been marked as broken for long time and it depends on a
non-existing PPCHAMELEONEVB Kconfig symbol.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
drivers/mtd/nand/Kconfig
drivers/mtd/nand/Makefile
drivers/mtd/nand/ppchameleonevb.c [deleted file]

index a626629a28595ad294c52ae066f18507c2075f59..e10a66572735b2fba3f5d760f9070875ceb504aa 100644 (file)
@@ -193,12 +193,6 @@ config MTD_NAND_BF5XX_BOOTROM_ECC
 
          If unsure, say N.
 
-config MTD_NAND_PPCHAMELEONEVB
-       tristate "NAND Flash device on PPChameleonEVB board"
-       depends on PPCHAMELEONEVB && BROKEN
-       help
-         This enables the NAND flash driver on the PPChameleon EVB Board.
-
 config MTD_NAND_S3C2410
        tristate "NAND Flash support for Samsung S3C SoCs"
        depends on ARCH_S3C24XX || ARCH_S3C64XX
index 115e0334be0c2940f947d65739f11e6604d27dd1..ff6e72aa27a6d287e596fe9b44bdb8fd3b045ceb 100644 (file)
@@ -15,7 +15,6 @@ obj-$(CONFIG_MTD_NAND_DENALI_PCI)     += denali_pci.o
 obj-$(CONFIG_MTD_NAND_DENALI_DT)       += denali_dt.o
 obj-$(CONFIG_MTD_NAND_AU1550)          += au1550nd.o
 obj-$(CONFIG_MTD_NAND_BF5XX)           += bf5xx_nand.o
-obj-$(CONFIG_MTD_NAND_PPCHAMELEONEVB)  += ppchameleonevb.o
 obj-$(CONFIG_MTD_NAND_S3C2410)         += s3c2410.o
 obj-$(CONFIG_MTD_NAND_DAVINCI)         += davinci_nand.o
 obj-$(CONFIG_MTD_NAND_DISKONCHIP)      += diskonchip.o
diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c
deleted file mode 100644 (file)
index 0ddd90e..0000000
+++ /dev/null
@@ -1,403 +0,0 @@
-/*
- *  drivers/mtd/nand/ppchameleonevb.c
- *
- *  Copyright (C) 2003 DAVE Srl (info@wawnet.biz)
- *
- *  Derived from drivers/mtd/nand/edb7312.c
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *  Overview:
- *   This is a device driver for the NAND flash devices found on the
- *   PPChameleon/PPChameleonEVB system.
- *   PPChameleon options (autodetected):
- *   - BA model: no NAND
- *   - ME model: 32MB (Samsung K9F5608U0B)
- *   - HI model: 128MB (Samsung K9F1G08UOM)
- *   PPChameleonEVB options:
- *   - 32MB (Samsung K9F5608U0B)
- */
-
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/partitions.h>
-#include <asm/io.h>
-#include <platforms/PPChameleonEVB.h>
-
-#undef USE_READY_BUSY_PIN
-#define USE_READY_BUSY_PIN
-/* see datasheets (tR) */
-#define NAND_BIG_DELAY_US              25
-#define NAND_SMALL_DELAY_US            10
-
-/* handy sizes */
-#define SZ_4M                           0x00400000
-#define NAND_SMALL_SIZE                 0x02000000
-#define NAND_MTD_NAME          "ppchameleon-nand"
-#define NAND_EVB_MTD_NAME      "ppchameleonevb-nand"
-
-/* GPIO pins used to drive NAND chip mounted on processor module */
-#define NAND_nCE_GPIO_PIN              (0x80000000 >> 1)
-#define NAND_CLE_GPIO_PIN              (0x80000000 >> 2)
-#define NAND_ALE_GPIO_PIN              (0x80000000 >> 3)
-#define NAND_RB_GPIO_PIN               (0x80000000 >> 4)
-/* GPIO pins used to drive NAND chip mounted on EVB */
-#define NAND_EVB_nCE_GPIO_PIN  (0x80000000 >> 14)
-#define NAND_EVB_CLE_GPIO_PIN  (0x80000000 >> 15)
-#define NAND_EVB_ALE_GPIO_PIN  (0x80000000 >> 16)
-#define NAND_EVB_RB_GPIO_PIN   (0x80000000 >> 31)
-
-/*
- * MTD structure for PPChameleonEVB board
- */
-static struct mtd_info *ppchameleon_mtd = NULL;
-static struct mtd_info *ppchameleonevb_mtd = NULL;
-
-/*
- * Module stuff
- */
-static unsigned long ppchameleon_fio_pbase = CFG_NAND0_PADDR;
-static unsigned long ppchameleonevb_fio_pbase = CFG_NAND1_PADDR;
-
-#ifdef MODULE
-module_param(ppchameleon_fio_pbase, ulong, 0);
-module_param(ppchameleonevb_fio_pbase, ulong, 0);
-#else
-__setup("ppchameleon_fio_pbase=", ppchameleon_fio_pbase);
-__setup("ppchameleonevb_fio_pbase=", ppchameleonevb_fio_pbase);
-#endif
-
-/*
- * Define static partitions for flash devices
- */
-static struct mtd_partition partition_info_hi[] = {
-      { .name = "PPChameleon HI Nand Flash",
-       .offset = 0,
-       .size = 128 * 1024 * 1024
-      }
-};
-
-static struct mtd_partition partition_info_me[] = {
-      { .name = "PPChameleon ME Nand Flash",
-       .offset = 0,
-       .size = 32 * 1024 * 1024
-      }
-};
-
-static struct mtd_partition partition_info_evb[] = {
-      { .name = "PPChameleonEVB Nand Flash",
-       .offset = 0,
-       .size = 32 * 1024 * 1024
-      }
-};
-
-#define NUM_PARTITIONS 1
-
-/*
- *     hardware specific access to control-lines
- */
-static void ppchameleon_hwcontrol(struct mtd_info *mtdinfo, int cmd,
-                                 unsigned int ctrl)
-{
-       struct nand_chip *chip = mtd->priv;
-
-       if (ctrl & NAND_CTRL_CHANGE) {
-#error Missing headerfiles. No way to fix this. -tglx
-               switch (cmd) {
-               case NAND_CTL_SETCLE:
-                       MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND0_PADDR);
-                       break;
-               case NAND_CTL_CLRCLE:
-                       MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND0_PADDR);
-                       break;
-               case NAND_CTL_SETALE:
-                       MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND0_PADDR);
-                       break;
-               case NAND_CTL_CLRALE:
-                       MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND0_PADDR);
-                       break;
-               case NAND_CTL_SETNCE:
-                       MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND0_PADDR);
-                       break;
-               case NAND_CTL_CLRNCE:
-                       MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND0_PADDR);
-                       break;
-               }
-       }
-       if (cmd != NAND_CMD_NONE)
-               writeb(cmd, chip->IO_ADDR_W);
-}
-
-static void ppchameleonevb_hwcontrol(struct mtd_info *mtdinfo, int cmd,
-                                    unsigned int ctrl)
-{
-       struct nand_chip *chip = mtd->priv;
-
-       if (ctrl & NAND_CTRL_CHANGE) {
-#error Missing headerfiles. No way to fix this. -tglx
-               switch (cmd) {
-               case NAND_CTL_SETCLE:
-                       MACRO_NAND_CTL_SETCLE((unsigned long)CFG_NAND1_PADDR);
-                       break;
-               case NAND_CTL_CLRCLE:
-                       MACRO_NAND_CTL_CLRCLE((unsigned long)CFG_NAND1_PADDR);
-                       break;
-               case NAND_CTL_SETALE:
-                       MACRO_NAND_CTL_SETALE((unsigned long)CFG_NAND1_PADDR);
-                       break;
-               case NAND_CTL_CLRALE:
-                       MACRO_NAND_CTL_CLRALE((unsigned long)CFG_NAND1_PADDR);
-                       break;
-               case NAND_CTL_SETNCE:
-                       MACRO_NAND_ENABLE_CE((unsigned long)CFG_NAND1_PADDR);
-                       break;
-               case NAND_CTL_CLRNCE:
-                       MACRO_NAND_DISABLE_CE((unsigned long)CFG_NAND1_PADDR);
-                       break;
-               }
-       }
-       if (cmd != NAND_CMD_NONE)
-               writeb(cmd, chip->IO_ADDR_W);
-}
-
-#ifdef USE_READY_BUSY_PIN
-/*
- *     read device ready pin
- */
-static int ppchameleon_device_ready(struct mtd_info *minfo)
-{
-       if (in_be32((volatile unsigned *)GPIO0_IR) & NAND_RB_GPIO_PIN)
-               return 1;
-       return 0;
-}
-
-static int ppchameleonevb_device_ready(struct mtd_info *minfo)
-{
-       if (in_be32((volatile unsigned *)GPIO0_IR) & NAND_EVB_RB_GPIO_PIN)
-               return 1;
-       return 0;
-}
-#endif
-
-/*
- * Main initialization routine
- */
-static int __init ppchameleonevb_init(void)
-{
-       struct nand_chip *this;
-       void __iomem *ppchameleon_fio_base;
-       void __iomem *ppchameleonevb_fio_base;
-
-       /*********************************
-       * Processor module NAND (if any) *
-       *********************************/
-       /* Allocate memory for MTD device structure and private data */
-       ppchameleon_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
-       if (!ppchameleon_mtd) {
-               printk("Unable to allocate PPChameleon NAND MTD device structure.\n");
-               return -ENOMEM;
-       }
-
-       /* map physical address */
-       ppchameleon_fio_base = ioremap(ppchameleon_fio_pbase, SZ_4M);
-       if (!ppchameleon_fio_base) {
-               printk("ioremap PPChameleon NAND flash failed\n");
-               kfree(ppchameleon_mtd);
-               return -EIO;
-       }
-
-       /* Get pointer to private data */
-       this = (struct nand_chip *)(&ppchameleon_mtd[1]);
-
-       /* Initialize structures */
-       memset(ppchameleon_mtd, 0, sizeof(struct mtd_info));
-       memset(this, 0, sizeof(struct nand_chip));
-
-       /* Link the private data with the MTD structure */
-       ppchameleon_mtd->priv = this;
-       ppchameleon_mtd->owner = THIS_MODULE;
-
-       /* Initialize GPIOs */
-       /* Pin mapping for NAND chip */
-       /*
-          CE   GPIO_01
-          CLE  GPIO_02
-          ALE  GPIO_03
-          R/B  GPIO_04
-        */
-       /* output select */
-       out_be32((volatile unsigned *)GPIO0_OSRH, in_be32((volatile unsigned *)GPIO0_OSRH) & 0xC0FFFFFF);
-       /* three-state select */
-       out_be32((volatile unsigned *)GPIO0_TSRH, in_be32((volatile unsigned *)GPIO0_TSRH) & 0xC0FFFFFF);
-       /* enable output driver */
-       out_be32((volatile unsigned *)GPIO0_TCR,
-                in_be32((volatile unsigned *)GPIO0_TCR) | NAND_nCE_GPIO_PIN | NAND_CLE_GPIO_PIN | NAND_ALE_GPIO_PIN);
-#ifdef USE_READY_BUSY_PIN
-       /* three-state select */
-       out_be32((volatile unsigned *)GPIO0_TSRH, in_be32((volatile unsigned *)GPIO0_TSRH) & 0xFF3FFFFF);
-       /* high-impedecence */
-       out_be32((volatile unsigned *)GPIO0_TCR, in_be32((volatile unsigned *)GPIO0_TCR) & (~NAND_RB_GPIO_PIN));
-       /* input select */
-       out_be32((volatile unsigned *)GPIO0_ISR1H,
-                (in_be32((volatile unsigned *)GPIO0_ISR1H) & 0xFF3FFFFF) | 0x00400000);
-#endif
-
-       /* insert callbacks */
-       this->IO_ADDR_R = ppchameleon_fio_base;
-       this->IO_ADDR_W = ppchameleon_fio_base;
-       this->cmd_ctrl = ppchameleon_hwcontrol;
-#ifdef USE_READY_BUSY_PIN
-       this->dev_ready = ppchameleon_device_ready;
-#endif
-       this->chip_delay = NAND_BIG_DELAY_US;
-       /* ECC mode */
-       this->ecc.mode = NAND_ECC_SOFT;
-
-       /* Scan to find existence of the device (it could not be mounted) */
-       if (nand_scan(ppchameleon_mtd, 1)) {
-               iounmap((void *)ppchameleon_fio_base);
-               ppchameleon_fio_base = NULL;
-               kfree(ppchameleon_mtd);
-               goto nand_evb_init;
-       }
-#ifndef USE_READY_BUSY_PIN
-       /* Adjust delay if necessary */
-       if (ppchameleon_mtd->size == NAND_SMALL_SIZE)
-               this->chip_delay = NAND_SMALL_DELAY_US;
-#endif
-
-       ppchameleon_mtd->name = "ppchameleon-nand";
-
-       /* Register the partitions */
-       mtd_device_parse_register(ppchameleon_mtd, NULL, NULL,
-                                 ppchameleon_mtd->size == NAND_SMALL_SIZE ?
-                                       partition_info_me : partition_info_hi,
-                                 NUM_PARTITIONS);
-
- nand_evb_init:
-       /****************************
-       * EVB NAND (always present) *
-       ****************************/
-       /* Allocate memory for MTD device structure and private data */
-       ppchameleonevb_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
-       if (!ppchameleonevb_mtd) {
-               printk("Unable to allocate PPChameleonEVB NAND MTD device structure.\n");
-               if (ppchameleon_fio_base)
-                       iounmap(ppchameleon_fio_base);
-               return -ENOMEM;
-       }
-
-       /* map physical address */
-       ppchameleonevb_fio_base = ioremap(ppchameleonevb_fio_pbase, SZ_4M);
-       if (!ppchameleonevb_fio_base) {
-               printk("ioremap PPChameleonEVB NAND flash failed\n");
-               kfree(ppchameleonevb_mtd);
-               if (ppchameleon_fio_base)
-                       iounmap(ppchameleon_fio_base);
-               return -EIO;
-       }
-
-       /* Get pointer to private data */
-       this = (struct nand_chip *)(&ppchameleonevb_mtd[1]);
-
-       /* Initialize structures */
-       memset(ppchameleonevb_mtd, 0, sizeof(struct mtd_info));
-       memset(this, 0, sizeof(struct nand_chip));
-
-       /* Link the private data with the MTD structure */
-       ppchameleonevb_mtd->priv = this;
-
-       /* Initialize GPIOs */
-       /* Pin mapping for NAND chip */
-       /*
-          CE   GPIO_14
-          CLE  GPIO_15
-          ALE  GPIO_16
-          R/B  GPIO_31
-        */
-       /* output select */
-       out_be32((volatile unsigned *)GPIO0_OSRH, in_be32((volatile unsigned *)GPIO0_OSRH) & 0xFFFFFFF0);
-       out_be32((volatile unsigned *)GPIO0_OSRL, in_be32((volatile unsigned *)GPIO0_OSRL) & 0x3FFFFFFF);
-       /* three-state select */
-       out_be32((volatile unsigned *)GPIO0_TSRH, in_be32((volatile unsigned *)GPIO0_TSRH) & 0xFFFFFFF0);
-       out_be32((volatile unsigned *)GPIO0_TSRL, in_be32((volatile unsigned *)GPIO0_TSRL) & 0x3FFFFFFF);
-       /* enable output driver */
-       out_be32((volatile unsigned *)GPIO0_TCR, in_be32((volatile unsigned *)GPIO0_TCR) | NAND_EVB_nCE_GPIO_PIN |
-                NAND_EVB_CLE_GPIO_PIN | NAND_EVB_ALE_GPIO_PIN);
-#ifdef USE_READY_BUSY_PIN
-       /* three-state select */
-       out_be32((volatile unsigned *)GPIO0_TSRL, in_be32((volatile unsigned *)GPIO0_TSRL) & 0xFFFFFFFC);
-       /* high-impedecence */
-       out_be32((volatile unsigned *)GPIO0_TCR, in_be32((volatile unsigned *)GPIO0_TCR) & (~NAND_EVB_RB_GPIO_PIN));
-       /* input select */
-       out_be32((volatile unsigned *)GPIO0_ISR1L,
-                (in_be32((volatile unsigned *)GPIO0_ISR1L) & 0xFFFFFFFC) | 0x00000001);
-#endif
-
-       /* insert callbacks */
-       this->IO_ADDR_R = ppchameleonevb_fio_base;
-       this->IO_ADDR_W = ppchameleonevb_fio_base;
-       this->cmd_ctrl = ppchameleonevb_hwcontrol;
-#ifdef USE_READY_BUSY_PIN
-       this->dev_ready = ppchameleonevb_device_ready;
-#endif
-       this->chip_delay = NAND_SMALL_DELAY_US;
-
-       /* ECC mode */
-       this->ecc.mode = NAND_ECC_SOFT;
-
-       /* Scan to find existence of the device */
-       if (nand_scan(ppchameleonevb_mtd, 1)) {
-               iounmap((void *)ppchameleonevb_fio_base);
-               kfree(ppchameleonevb_mtd);
-               if (ppchameleon_fio_base)
-                       iounmap(ppchameleon_fio_base);
-               return -ENXIO;
-       }
-
-       ppchameleonevb_mtd->name = NAND_EVB_MTD_NAME;
-
-       /* Register the partitions */
-       mtd_device_parse_register(ppchameleonevb_mtd, NULL, NULL,
-                                 ppchameleon_mtd->size == NAND_SMALL_SIZE ?
-                                 partition_info_me : partition_info_hi,
-                                 NUM_PARTITIONS);
-
-       /* Return happy */
-       return 0;
-}
-
-module_init(ppchameleonevb_init);
-
-/*
- * Clean up routine
- */
-static void __exit ppchameleonevb_cleanup(void)
-{
-       struct nand_chip *this;
-
-       /* Release resources, unregister device(s) */
-       nand_release(ppchameleon_mtd);
-       nand_release(ppchameleonevb_mtd);
-
-       /* Release iomaps */
-       this = (struct nand_chip *) &ppchameleon_mtd[1];
-       iounmap((void *) this->IO_ADDR_R);
-       this = (struct nand_chip *) &ppchameleonevb_mtd[1];
-       iounmap((void *) this->IO_ADDR_R);
-
-       /* Free the MTD device structure */
-       kfree (ppchameleon_mtd);
-       kfree (ppchameleonevb_mtd);
-}
-module_exit(ppchameleonevb_cleanup);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("DAVE Srl <support-ppchameleon@dave-tech.it>");
-MODULE_DESCRIPTION("MTD map driver for DAVE Srl PPChameleonEVB board");