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https://github.com/AsahiLinux/u-boot
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65cc0e2a65
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000-2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
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* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
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*/
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#include <config.h>
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#include <common.h>
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#include <asm/io.h>
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#include <asm/immap.h>
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#if defined(CONFIG_CMD_NAND)
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#include <nand.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/rawnand.h>
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#define SET_CLE 0x10
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#define SET_ALE 0x08
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static void nand_hwcontrol(struct mtd_info *mtdinfo, int cmd, unsigned int ctrl)
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{
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struct nand_chip *this = mtd_to_nand(mtdinfo);
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volatile u16 *nCE = (u16 *) CFG_SYS_LATCH_ADDR;
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if (ctrl & NAND_CTRL_CHANGE) {
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ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
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IO_ADDR_W &= ~(SET_ALE | SET_CLE);
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if (ctrl & NAND_NCE)
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*nCE &= 0xFFFB;
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else
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*nCE |= 0x0004;
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if (ctrl & NAND_CLE)
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IO_ADDR_W |= SET_CLE;
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if (ctrl & NAND_ALE)
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IO_ADDR_W |= SET_ALE;
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this->IO_ADDR_W = (void *)IO_ADDR_W;
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}
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if (cmd != NAND_CMD_NONE)
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writeb(cmd, this->IO_ADDR_W);
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}
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int board_nand_init(struct nand_chip *nand)
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{
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gpio_t *gpio = (gpio_t *) MMAP_GPIO;
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/*
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* set up pin configuration - enabled 2nd output buffer's signals
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* (nand_ngpio - nCE USB1/2_PWR_EN, LATCH_GPIOs, LCD_VEEEN, etc)
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* to use nCE signal
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*/
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clrbits_8(&gpio->par_timer, GPIO_PAR_TIN3_TIN3);
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setbits_8(&gpio->pddr_timer, 0x08);
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setbits_8(&gpio->ppd_timer, 0x08);
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out_8(&gpio->pclrr_timer, 0);
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out_8(&gpio->podr_timer, 0);
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nand->chip_delay = 60;
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nand->ecc.mode = NAND_ECC_SOFT;
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nand->cmd_ctrl = nand_hwcontrol;
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return 0;
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}
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#endif
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