nand.h: Cleanup linux/mtd/rawnand.h usage
[platform/kernel/u-boot.git] / board / freescale / m5329evb / nand.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2000-2003
4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5  *
6  * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
7  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
8  */
9
10 #include <config.h>
11 #include <common.h>
12 #include <asm/io.h>
13 #include <asm/immap.h>
14
15 #if defined(CONFIG_CMD_NAND)
16 #include <nand.h>
17 #include <linux/mtd/mtd.h>
18 #include <linux/mtd/rawnand.h>
19
20 #define SET_CLE         0x10
21 #define SET_ALE         0x08
22
23 static void nand_hwcontrol(struct mtd_info *mtdinfo, int cmd, unsigned int ctrl)
24 {
25         struct nand_chip *this = mtd_to_nand(mtdinfo);
26         volatile u16 *nCE = (u16 *) CONFIG_SYS_LATCH_ADDR;
27
28         if (ctrl & NAND_CTRL_CHANGE) {
29                 ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
30
31                 IO_ADDR_W &= ~(SET_ALE | SET_CLE);
32
33                 if (ctrl & NAND_NCE)
34                         *nCE &= 0xFFFB;
35                 else
36                         *nCE |= 0x0004;
37
38                 if (ctrl & NAND_CLE)
39                         IO_ADDR_W |= SET_CLE;
40                 if (ctrl & NAND_ALE)
41                         IO_ADDR_W |= SET_ALE;
42
43                 this->IO_ADDR_W = (void *)IO_ADDR_W;
44         }
45
46         if (cmd != NAND_CMD_NONE)
47                 writeb(cmd, this->IO_ADDR_W);
48 }
49
50 int board_nand_init(struct nand_chip *nand)
51 {
52         gpio_t *gpio = (gpio_t *) MMAP_GPIO;
53
54         /*
55          * set up pin configuration - enabled 2nd output buffer's signals
56          * (nand_ngpio - nCE USB1/2_PWR_EN, LATCH_GPIOs, LCD_VEEEN, etc)
57          * to use nCE signal
58          */
59         clrbits_8(&gpio->par_timer, GPIO_PAR_TIN3_TIN3);
60         setbits_8(&gpio->pddr_timer, 0x08);
61         setbits_8(&gpio->ppd_timer, 0x08);
62         out_8(&gpio->pclrr_timer, 0);
63         out_8(&gpio->podr_timer, 0);
64
65         nand->chip_delay = 60;
66         nand->ecc.mode = NAND_ECC_SOFT;
67         nand->cmd_ctrl = nand_hwcontrol;
68
69         return 0;
70 }
71 #endif