From 4d0c8db74d83e43dec4e7481b2d1e194f51d907b Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Tue, 4 Apr 2023 13:09:36 +0200 Subject: board: cssi: Add CPU board CMPCPRO CSSI has another CPU board, similar to the CMPC885 board that get plugged on the two base boards MCR3000_2G and MIAE. That CPU board is called CMPCPRO because it has a MPC8321E CPU, also known as Power QUICC II PRO. Signed-off-by: Christophe Leroy --- board/cssi/cmpcpro/nand.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 board/cssi/cmpcpro/nand.c (limited to 'board/cssi/cmpcpro/nand.c') diff --git a/board/cssi/cmpcpro/nand.c b/board/cssi/cmpcpro/nand.c new file mode 100644 index 0000000000..d8b4197314 --- /dev/null +++ b/board/cssi/cmpcpro/nand.c @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2010-2023 CS GROUP France + * Florent TRINH THAI (florent.trinh-thai@csgroup.eu) + * Stephane FRANJOU (stephane.franjou@csgroup.eu) + */ + +#include +#include +#include +#include +#include + +#define BIT_CLE BIT(6) +#define BIT_ALE BIT(5) + +static u32 nand_mask(unsigned int ctrl) +{ + return ((ctrl & NAND_CLE) ? BIT_CLE : 0) | + ((ctrl & NAND_ALE) ? BIT_ALE : 0); +} + +static void nand_hwcontrol(struct mtd_info *mtdinfo, int cmd, unsigned int ctrl) +{ + immap_t __iomem *immr = (immap_t *)CONFIG_SYS_IMMR; + struct nand_chip *chip = mtd_to_nand(mtdinfo); + + if (ctrl & NAND_CTRL_CHANGE) + clrsetbits_be32(&immr->qepio.ioport[2].pdat, + BIT_CLE | BIT_ALE, nand_mask(ctrl)); + + if (cmd != NAND_CMD_NONE) + out_8(chip->IO_ADDR_W, cmd); +} + +int board_nand_init(struct nand_chip *nand) +{ + nand->chip_delay = 60; + nand->ecc.mode = NAND_ECC_SOFT; + nand->cmd_ctrl = nand_hwcontrol; + + return 0; +} -- cgit v1.2.3