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Diffstat (limited to 'board/dave/PPChameleonEVB/nand.c')
-rw-r--r--board/dave/PPChameleonEVB/nand.c99
1 files changed, 0 insertions, 99 deletions
diff --git a/board/dave/PPChameleonEVB/nand.c b/board/dave/PPChameleonEVB/nand.c
deleted file mode 100644
index a191a0c..0000000
--- a/board/dave/PPChameleonEVB/nand.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * (C) Copyright 2006 DENX Software Engineering
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-
-#if defined(CONFIG_CMD_NAND)
-
-#include <nand.h>
-
-/*
- * hardware specific access to control-lines
- * function borrowed from Linux 2.6 (drivers/mtd/nand/ppchameleonevb.c)
- */
-static void ppchameleonevb_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
-{
- struct nand_chip *this = mtd->priv;
- ulong base = (ulong) this->IO_ADDR_W;
-
- if (ctrl & NAND_CTRL_CHANGE) {
- if ( ctrl & NAND_CLE )
- MACRO_NAND_CTL_SETCLE((unsigned long)base);
- else
- MACRO_NAND_CTL_CLRCLE((unsigned long)base);
- if ( ctrl & NAND_ALE )
- MACRO_NAND_CTL_CLRCLE((unsigned long)base);
- else
- MACRO_NAND_CTL_CLRALE((unsigned long)base);
- if ( ctrl & NAND_NCE )
- MACRO_NAND_ENABLE_CE((unsigned long)base);
- else
- MACRO_NAND_DISABLE_CE((unsigned long)base);
- }
-
- if (cmd != NAND_CMD_NONE)
- writeb(cmd, this->IO_ADDR_W);
-}
-
-
-/*
- * read device ready pin
- * function +/- borrowed from Linux 2.6 (drivers/mtd/nand/ppchameleonevb.c)
- */
-static int ppchameleonevb_device_ready(struct mtd_info *mtdinfo)
-{
- struct nand_chip *this = mtdinfo->priv;
- ulong rb_gpio_pin;
-
- /* use the base addr to find out which chip are we dealing with */
- switch((ulong) this->IO_ADDR_W) {
- case CONFIG_SYS_NAND0_BASE:
- rb_gpio_pin = CONFIG_SYS_NAND0_RDY;
- break;
- case CONFIG_SYS_NAND1_BASE:
- rb_gpio_pin = CONFIG_SYS_NAND1_RDY;
- break;
- default: /* this should never happen */
- return 0;
- break;
- }
-
- if (in32(GPIO0_IR) & rb_gpio_pin)
- return 1;
- return 0;
-}
-
-
-/*
- * Board-specific NAND initialization. The following members of the
- * argument are board-specific (per include/linux/mtd/nand.h):
- * - IO_ADDR_R?: address to read the 8 I/O lines of the flash device
- * - IO_ADDR_W?: address to write the 8 I/O lines of the flash device
- * - cmd_ctrl: hardwarespecific function for accesing control-lines
- * - dev_ready: hardwarespecific function for accesing device ready/busy line
- * - enable_hwecc?: function to enable (reset) hardware ecc generator. Must
- * only be provided if a hardware ECC is available
- * - ecc.mode: mode of ecc, see defines
- * - chip_delay: chip dependent delay for transfering data from array to
- * read regs (tR)
- * - options: various chip options. They can partly be set to inform
- * nand_scan about special functionality. See the defines for further
- * explanation
- * Members with a "?" were not set in the merged testing-NAND branch,
- * so they are not set here either.
- */
-int board_nand_init(struct nand_chip *nand)
-{
-
- nand->cmd_ctrl = ppchameleonevb_hwcontrol;
- nand->dev_ready = ppchameleonevb_device_ready;
- nand->ecc.mode = NAND_ECC_SOFT;
- nand->chip_delay = NAND_BIG_DELAY_US;
- nand->options = NAND_SAMSUNG_LP_OPTIONS;
- return 0;
-}
-#endif