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u-boot/drivers/block/rkmtd.c
Johan Jonker 80201eccaa rockchip: block: add rkmtd class and drivers 
Add rkmtd class and drivers to create a virtual block device
to transfer Rockchip boot block data to and from NAND with
block orientated tools like "ums" and "rockusb".

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-10-24 15:55:17 +08:00

1152 lines
34 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* Some functions are derived from:
* https://github.com/rockchip-linux/u-boot/blob/next-dev/drivers/rknand/rk_ftl_arm_v7.S
* Copyright (c) 2016-2018, Fuzhou Rockchip Electronics Co., Ltd
*
* Driver interface derived from:
* /drivers/block/host_dev.c
* /drivers/block/host-uclass.c
* Copyright 2022 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*
* Copyright (C) 2023 Johan Jonker <jbx6244@gmail.com>
*/
#include <blk.h>
#include <dm.h>
#include <nand.h>
#include <part.h>
#include <rkmtd.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <dm/device-internal.h>
#include <dm/devres.h>
#include <dm/lists.h>
#include <dm/root.h>
#include <dm/uclass-internal.h>
#include <linux/mtd/mtd.h>
#if !IS_ENABLED(CONFIG_SANDBOX)
#include <linux/mtd/rawnand.h>
#endif
#include <u-boot/crc.h>
struct nand_para_info nand_para_tbl[] = {
{6, {0x2c, 0x64, 0x44, 0x4b, 0xa9, 0x00}, 4, 1, 16, 256, 2, 2, 2048, 0x01df, 3, 17, 40, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0x44, 0x44, 0x4b, 0xa9, 0x00}, 4, 1, 16, 256, 2, 2, 1064, 0x01df, 3, 17, 40, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0x68, 0x04, 0x4a, 0xa9, 0x00}, 4, 1, 8, 256, 2, 2, 2048, 0x011f, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x88, 0x04, 0x4b, 0xa9, 0x00}, 4, 1, 16, 256, 2, 2, 2048, 0x011f, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0xa8, 0x05, 0xcb, 0xa9, 0x00}, 4, 2, 16, 256, 2, 2, 2048, 0x011f, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0x68, 0x04, 0x46, 0x89, 0x00}, 4, 1, 8, 256, 2, 2, 2048, 0x011f, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0x48, 0x04, 0x4a, 0xa5, 0x00}, 4, 1, 8, 256, 2, 2, 1024, 0x011f, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0x84, 0x64, 0x3c, 0xa5, 0x00}, 4, 1, 32, 512, 2, 2, 1024, 0x01df, 3, 17, 40, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x84, 0x64, 0x54, 0xa9, 0x00}, 4, 1, 32, 512, 2, 2, 1024, 0x01df, 4, 18, 60, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0xd7, 0x94, 0x3e, 0x84, 0x00}, 4, 1, 8, 128, 2, 2, 4096, 0x0117, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0x48, 0x04, 0x46, 0x85, 0x00}, 4, 1, 8, 256, 2, 2, 1024, 0x011f, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0x88, 0x05, 0xc6, 0x89, 0x00}, 4, 2, 8, 256, 2, 2, 2048, 0x011f, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x88, 0x24, 0x4b, 0xa9, 0x00}, 4, 1, 16, 256, 2, 2, 2048, 0x011f, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0x68, 0x00, 0x27, 0xa9, 0x00}, 4, 1, 16, 128, 1, 2, 2048, 0x011f, 0, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x64, 0x64, 0x56, 0xa5, 0x00}, 4, 1, 24, 512, 2, 2, 700, 0x01df, 4, 18, 60, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0x84, 0xc5, 0x4b, 0xa9, 0x00}, 4, 2, 16, 256, 2, 2, 2048, 0x01df, 3, 17, 40, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0xd5, 0xd1, 0xa6, 0x68, 0x00}, 4, 2, 8, 64, 1, 2, 2048, 0x0117, 0, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0xdc, 0x90, 0xa6, 0x54, 0x00}, 4, 1, 8, 64, 1, 2, 1024, 0x0117, 0, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x64, 0x64, 0x54, 0xa4, 0x00}, 4, 1, 32, 512, 2, 1, 1024, 0x01df, 4, 18, 60, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x84, 0x44, 0x32, 0xaa, 0x00}, 4, 1, 32, 512, 2, 1, 2184, 0x05c7, 5, 19, 60, 32, 1, 0, 1, 0, 1, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x64, 0x44, 0x32, 0xa5, 0x00}, 4, 1, 32, 512, 2, 1, 1048, 0x05c7, 5, 19, 60, 32, 1, 0, 1, 0, 1, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x64, 0x64, 0x3c, 0xa5, 0x00}, 4, 1, 32, 512, 2, 1, 1044, 0x01df, 3, 17, 40, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x84, 0x44, 0x32, 0xaa, 0x00}, 4, 1, 32, 512, 2, 1, 2184, 0x05c7, 5, 19, 60, 32, 1, 0, 4, 0, 1, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x84, 0x44, 0x34, 0xaa, 0x00}, 4, 1, 32, 512, 2, 1, 2184, 0x05c7, 5, 19, 60, 32, 1, 0, 4, 0, 1, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x84, 0xc4, 0x34, 0xaa, 0x00}, 4, 1, 32, 512, 2, 1, 2184, 0x05c7, 5, 19, 60, 32, 1, 0, 1, 0, 1, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x84, 0x44, 0x34, 0xa4, 0x00}, 4, 1, 32, 512, 2, 1, 2184, 0x05c7, 5, 19, 60, 32, 1, 0, 1, 0, 1, {0, 0, 0, 0, 0}},
{5, {0x2c, 0x84, 0x64, 0x3c, 0xa9, 0x00}, 4, 1, 32, 512, 2, 2, 1024, 0x01df, 3, 17, 40, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x2c, 0xa4, 0x64, 0x32, 0xaa, 0x04}, 4, 1, 32, 1024, 2, 1, 2192, 0x05c7, 10, 19, 60, 32, 1, 0, 4, 0, 1, {0, 0, 0, 0, 0}},
{6, {0xad, 0xde, 0x94, 0xd2, 0x04, 0x43}, 2, 1, 16, 256, 2, 2, 2048, 0x01d9, 1, 1, 24, 32, 4, 0, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xd7, 0x94, 0xda, 0x74, 0xc3}, 2, 1, 16, 256, 2, 2, 1024, 0x01d9, 1, 2, 40, 32, 4, 0, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xd7, 0x94, 0x91, 0x60, 0x44}, 2, 1, 16, 256, 2, 2, 1046, 0x01d9, 1, 3, 40, 32, 4, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xde, 0x94, 0xda, 0x74, 0xc4}, 2, 1, 16, 256, 2, 2, 2090, 0x01d9, 1, 4, 40, 32, 4, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xde, 0x94, 0xeb, 0x74, 0x44}, 2, 1, 32, 256, 2, 2, 1066, 0x01d9, 1, 7, 40, 32, 4, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xd5, 0x94, 0xda, 0x74, 0xc4}, 2, 1, 16, 256, 2, 2, 530, 0x01d9, 1, 3, 40, 32, 4, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xd7, 0x94, 0x9a, 0x74, 0x42}, 2, 1, 16, 256, 2, 2, 1024, 0x0119, 1, 0, 24, 32, 4, 0, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xde, 0x14, 0xa7, 0x42, 0x4a}, 2, 1, 32, 256, 2, 2, 1060, 0x01d9, 2, 5, 40, 32, 4, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xd7, 0x14, 0x9e, 0x34, 0x4a}, 2, 1, 16, 256, 2, 2, 1056, 0x01d9, 2, 5, 40, 32, 4, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xde, 0x94, 0xa7, 0x42, 0x48}, 2, 1, 32, 256, 2, 2, 1060, 0x01d9, 2, 5, 40, 32, 4, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xde, 0x14, 0xab, 0x42, 0x4a}, 2, 1, 32, 256, 2, 2, 1056, 0x01d9, 2, 6, 40, 32, 3, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0x3a, 0x14, 0xab, 0x42, 0x4a}, 2, 1, 32, 256, 2, 2, 2092, 0x01d9, 2, 5, 40, 32, 3, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0xd5, 0x94, 0x9a, 0x74, 0x42}, 2, 1, 16, 256, 2, 1, 1024, 0x0111, 1, 0, 24, 32, 4, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xad, 0x3a, 0x14, 0x03, 0x08, 0x50}, 2, 1, 32, 388, 2, 2, 1362, 0x01d9, 9, 8, 40, 32, 3, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x89, 0x64, 0x44, 0x4b, 0xa9, 0x00}, 7, 1, 16, 256, 2, 2, 2048, 0x01df, 3, 17, 40, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x89, 0x88, 0x24, 0x4b, 0xa9, 0x84}, 7, 1, 16, 256, 2, 2, 2048, 0x01df, 3, 17, 40, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x89, 0x88, 0x24, 0x4b, 0xa9, 0x00}, 7, 1, 16, 256, 2, 2, 2048, 0x0117, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x89, 0x68, 0x24, 0x4a, 0xa9, 0x00}, 7, 1, 8, 256, 2, 2, 2048, 0x0117, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x89, 0x68, 0x04, 0x4a, 0xa9, 0x00}, 7, 1, 8, 256, 2, 2, 2048, 0x0117, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x89, 0xd7, 0x94, 0x3e, 0x84, 0x00}, 7, 1, 8, 256, 2, 2, 2048, 0x0117, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x89, 0x68, 0x04, 0x46, 0xa9, 0x00}, 7, 1, 8, 256, 2, 2, 2048, 0x0117, 1, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{5, {0x89, 0x64, 0x64, 0x3c, 0xa1, 0x00}, 7, 1, 32, 512, 2, 1, 1024, 0x01c7, 4, 17, 40, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{5, {0x89, 0x84, 0x64, 0x3c, 0xa5, 0x00}, 7, 1, 32, 512, 2, 2, 1024, 0x01c7, 4, 17, 40, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x89, 0x88, 0x24, 0x3b, 0xa9, 0x00}, 7, 1, 16, 192, 2, 2, 2048, 0x0117, 12, 0, 24, 32, 1, 0, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xd7, 0x84, 0x93, 0x72, 0x57}, 1, 1, 32, 256, 2, 1, 1060, 0x05c1, 2, 33, 40, 32, 2, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xde, 0x84, 0x93, 0x72, 0x57}, 1, 1, 32, 256, 2, 1, 2092, 0x05c1, 2, 33, 40, 32, 2, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0x3a, 0x85, 0x93, 0x76, 0x57}, 1, 2, 32, 256, 2, 1, 2092, 0x05e1, 2, 33, 40, 32, 2, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xd5, 0x84, 0x32, 0x72, 0x56}, 1, 1, 16, 128, 2, 1, 2056, 0x05c1, 2, 33, 40, 32, 2, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xd7, 0x94, 0x32, 0x76, 0x56}, 1, 1, 16, 128, 2, 2, 2058, 0x05d1, 2, 33, 40, 32, 2, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xde, 0x94, 0x82, 0x76, 0x56}, 1, 1, 16, 256, 2, 2, 2062, 0x05d1, 1, 33, 40, 32, 2, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xde, 0x94, 0x93, 0x76, 0x50}, 1, 1, 32, 256, 2, 2, 1066, 0x05d9, 2, 34, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0x3a, 0x95, 0x93, 0x7a, 0x50}, 1, 2, 32, 256, 2, 2, 1066, 0x05d9, 2, 34, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xd7, 0x94, 0x32, 0x76, 0x55}, 1, 1, 16, 128, 2, 2, 2050, 0x0191, 2, 0, 24, 32, 1, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xde, 0x94, 0x93, 0x76, 0x57}, 1, 1, 32, 256, 2, 2, 1058, 0x05d9, 2, 33, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xd7, 0x84, 0x93, 0x72, 0x50}, 1, 1, 32, 256, 2, 1, 1060, 0x05c1, 2, 34, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xde, 0x94, 0x93, 0x76, 0x51}, 1, 1, 32, 256, 2, 2, 1074, 0x05d9, 2, 35, 40, 32, 3, 1, 4, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0x3a, 0x94, 0x93, 0x76, 0x51}, 1, 1, 32, 256, 2, 2, 2106, 0x05d9, 2, 35, 40, 32, 3, 1, 4, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xd7, 0x84, 0x93, 0x72, 0x51}, 1, 1, 32, 256, 2, 1, 1056, 0x05d9, 2, 35, 40, 32, 3, 1, 4, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x98, 0xde, 0x94, 0x93, 0x76, 0xd1}, 1, 1, 32, 256, 2, 2, 1074, 0x05d9, 2, 35, 40, 32, 3, 1, 4, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0xde, 0x94, 0x93, 0x76, 0x57}, 8, 1, 32, 256, 2, 2, 1058, 0x05d9, 2, 66, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0xd7, 0x84, 0x93, 0x72, 0x57}, 8, 1, 32, 256, 2, 1, 1060, 0x05c1, 2, 66, 40, 32, 2, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0xde, 0xa4, 0x82, 0x76, 0x56}, 8, 1, 16, 256, 2, 2, 2082, 0x01d9, 1, 65, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0xde, 0x94, 0x93, 0x76, 0x50}, 8, 1, 32, 256, 2, 2, 1066, 0x05d9, 2, 67, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0xd7, 0x84, 0x93, 0x72, 0x50}, 8, 1, 32, 256, 2, 1, 1060, 0x05c1, 2, 67, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0xde, 0xa4, 0x82, 0x76, 0xd7}, 8, 1, 16, 256, 2, 2, 2090, 0x04d9, 1, 66, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0xde, 0x84, 0x93, 0x72, 0x57}, 8, 1, 32, 256, 2, 1, 2092, 0x05c1, 2, 66, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0x3a, 0x94, 0x93, 0x76, 0x51}, 8, 1, 32, 256, 2, 2, 2106, 0x01d9, 2, 68, 40, 32, 3, 1, 4, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0xde, 0x94, 0x93, 0x76, 0x51}, 8, 1, 32, 256, 2, 2, 1074, 0x01d9, 2, 68, 40, 32, 3, 1, 4, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0x3a, 0xa4, 0x93, 0x7a, 0x50}, 8, 1, 32, 256, 2, 2, 2138, 0x05d9, 2, 0, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0xde, 0x94, 0x82, 0x76, 0x56}, 8, 1, 16, 256, 2, 2, 2062, 0x01d9, 1, 0, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0x45, 0xde, 0x94, 0x93, 0x76, 0xd7}, 8, 1, 32, 256, 2, 2, 1058, 0x05d9, 2, 66, 40, 32, 3, 1, 1, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xec, 0xd7, 0x94, 0x7e, 0x64, 0x44}, 0, 1, 16, 128, 2, 2, 2048, 0x01d9, 2, 49, 60, 36, 3, 0, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xec, 0xde, 0xd5, 0x7e, 0x68, 0x44}, 0, 2, 16, 128, 2, 2, 2048, 0x01f9, 2, 49, 60, 36, 3, 0, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xec, 0xd7, 0x94, 0x7a, 0x54, 0x43}, 0, 1, 16, 128, 2, 2, 2076, 0x0199, 2, 0, 40, 36, 3, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xec, 0xde, 0xd5, 0x7a, 0x58, 0x43}, 0, 2, 16, 128, 2, 2, 2076, 0x01b9, 2, 0, 40, 36, 3, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xec, 0xd5, 0x94, 0x76, 0x54, 0x43}, 0, 1, 16, 128, 2, 2, 1038, 0x0119, 2, 0, 24, 36, 3, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xec, 0xd7, 0x14, 0x76, 0x54, 0xc2}, 0, 1, 16, 128, 2, 2, 2076, 0x0491, 2, 0, 24, 40, 3, 1, 3, 0, 0, {0, 0, 0, 0, 0}},
{6, {0xec, 0xde, 0x94, 0xc3, 0xa4, 0xca}, 0, 1, 32, 792, 2, 1, 688, 0x04c1, 11, 50, 40, 32, 3, 1, 1, 0, 1, {0, 0, 0, 0, 0}},
};
#if !IS_ENABLED(CONFIG_SANDBOX)
static int rkmtd_write_oob(struct rkmtd_dev *plat, ulong off, u_char *datbuf, u_char *oobbuf)
{
struct mtd_info *mtd = plat->mtd;
struct mtd_oob_ops ops;
loff_t addr;
int ret;
off &= ~(mtd->writesize - 1);
addr = (loff_t)off;
memset(&ops, 0, sizeof(ops));
ops.datbuf = datbuf;
ops.oobbuf = oobbuf;
ops.len = mtd->writesize;
ops.ooblen = mtd->oobsize;
ops.mode = MTD_OPS_PLACE_OOB;
ret = mtd_write_oob(mtd, addr, &ops);
if (ret < 0) {
debug("Error (%d) writing page %08lx\n", ret, off);
return 1;
}
return 0;
}
static int rkmtd_read_oob(struct rkmtd_dev *plat, ulong off, u_char *datbuf, u_char *oobbuf)
{
struct mtd_info *mtd = plat->mtd;
struct mtd_oob_ops ops;
loff_t addr;
int ret;
off &= ~(mtd->writesize - 1);
addr = (loff_t)off;
memset(&ops, 0, sizeof(ops));
ops.datbuf = datbuf;
ops.oobbuf = oobbuf;
ops.len = mtd->writesize;
ops.ooblen = mtd->oobsize;
ops.mode = MTD_OPS_PLACE_OOB;
ret = mtd_read_oob(mtd, addr, &ops);
if (ret < 0) {
debug("Error (%d) reading page %08lx\n", ret, off);
return 1;
}
return 0;
}
static int rkmtd_erase(struct rkmtd_dev *plat, ulong off)
{
struct mtd_info *mtd = plat->mtd;
struct erase_info info;
loff_t addr;
int ret;
off &= ~(mtd->writesize - 1);
addr = (loff_t)off;
memset(&info, 0, sizeof(info));
info.mtd = mtd;
info.addr = addr;
info.len = mtd->erasesize;
info.scrub = 1;
ret = mtd_erase(mtd, &info);
if (ret) {
debug("Error (%d) erasing page %08lx\n", ret, off);
return 1;
}
return 0;
}
#endif
void rkmtd_scan_block(struct rkmtd_dev *plat)
{
plat->blk_counter = 0;
#if !IS_ENABLED(CONFIG_SANDBOX)
u32 blk;
for (blk = 0; blk < plat->boot_blks; blk++) {
rkmtd_read_oob(plat, blk * plat->mtd->erasesize, plat->datbuf, plat->oobbuf);
if (*(u32 *)plat->datbuf == RK_TAG) {
struct sector0 *sec0 = (struct sector0 *)plat->datbuf;
rkmtd_rc4(plat->datbuf, 512);
plat->idblock[plat->blk_counter].blk = blk;
plat->idblock[plat->blk_counter].offset = sec0->boot_code1_offset;
plat->idblock[plat->blk_counter].boot_size = sec0->flash_boot_size;
debug("\nblk : %d\n", plat->idblock[plat->blk_counter].blk);
debug("offset : %d\n", plat->idblock[plat->blk_counter].offset);
debug("boot_size : %d\n", plat->idblock[plat->blk_counter].boot_size);
plat->blk_counter += 1;
if (plat->blk_counter >= ARRAY_SIZE(plat->idblock))
return;
}
}
#endif
}
void rkmtd_read_block(struct rkmtd_dev *plat, u32 idx, u8 *buf)
{
#if !IS_ENABLED(CONFIG_SANDBOX)
ulong off = plat->idblock[idx].blk * plat->mtd->erasesize;
struct nand_chip *chip = mtd_to_nand(plat->mtd);
struct nand_ecc_ctrl *ecc = &chip->ecc;
int counter = 0;
u32 spare0 = 0;
u32 *p_spare;
int sector;
int page;
rkmtd_read_oob(plat, off,
plat->datbuf, plat->oobbuf);
memcpy(buf, plat->datbuf, BLK_SIZE);
while (counter < plat->idblock[idx].boot_size) {
if (spare0)
page = (plat->idblock[idx].offset + spare0) / 4;
else
page = (plat->idblock[idx].offset + counter) / 4;
rkmtd_read_oob(plat,
off + page * plat->mtd->writesize,
plat->datbuf, plat->oobbuf);
sector = plat->idblock[idx].offset + counter;
memcpy(&buf[(sector / 4) * BLK_SIZE], plat->datbuf, BLK_SIZE);
p_spare = (u32 *)&plat->oobbuf[(ecc->steps - 1) * NFC_SYS_DATA_SIZE];
spare0 = *p_spare;
if (spare0 == -1)
break;
counter += 4;
}
#endif
}
void rkmtd_write_block(struct rkmtd_dev *plat, u32 idx, u8 *buf)
{
#if !IS_ENABLED(CONFIG_SANDBOX)
ulong off = plat->idblock[idx].blk * plat->mtd->erasesize;
struct nand_chip *chip = mtd_to_nand(plat->mtd);
struct nand_ecc_ctrl *ecc = &chip->ecc;
int counter = 0;
u32 *p_spare;
int sector;
int page;
int j, w, r;
rkmtd_erase(plat, off);
memset(plat->datbuf, 0xff, plat->mtd->writesize);
memcpy(plat->datbuf, buf, BLK_SIZE);
memset(plat->oobbuf, 0xff, plat->mtd->oobsize);
rkmtd_write_oob(plat, off,
plat->datbuf, plat->oobbuf);
while (counter < plat->idblock[idx].boot_size) {
sector = plat->idblock[idx].offset + counter;
memset(plat->datbuf, 0xff, plat->mtd->writesize);
memcpy(plat->datbuf, &buf[(sector / 4) * BLK_SIZE], BLK_SIZE);
memset(plat->oobbuf, 0xff, plat->mtd->oobsize);
p_spare = (u32 *)&plat->oobbuf[(ecc->steps - 1) * NFC_SYS_DATA_SIZE];
*p_spare = (plat->page_table[sector / 4 + 1] - 1) * 4;
page = plat->page_table[sector / 4];
rkmtd_write_oob(plat,
off + page * plat->mtd->writesize,
plat->datbuf, plat->oobbuf);
counter += 4;
}
memset(plat->check, 0, BUF_SIZE);
rkmtd_read_block(plat, idx, plat->check);
for (j = 0; j < BLK_SIZE; j++) {
w = *(buf + j);
r = *(plat->check + j);
if (r != w)
goto dumpblock;
}
for (j = 0; j < (plat->idblock[idx].boot_size * 512); j++) {
w = *(buf + plat->idblock[idx].offset * 512 + j);
r = *(plat->check + plat->idblock[idx].offset * 512 + j);
if (r != w)
goto dumpblock;
}
debug("write OK\n");
return;
dumpblock:
debug("write and check error:%x r=%x w=%x\n", j, r, w);
plat->idblock[idx].offset = 0;
plat->idblock[idx].boot_size = 0;
memset(plat->datbuf, 0xff, plat->mtd->writesize);
memset(plat->datbuf, 0, BLK_SIZE);
memset(plat->oobbuf, 0xff, plat->mtd->oobsize);
rkmtd_write_oob(plat, off, plat->datbuf, plat->oobbuf);
#endif
}
ulong rkmtd_bread(struct udevice *udev, lbaint_t start,
lbaint_t blkcnt, void *dst)
{
struct blk_desc *block_dev = dev_get_uclass_plat(udev);
struct udevice *parent_dev = dev_get_parent(udev);
struct rkmtd_dev *plat = dev_get_plat(parent_dev);
char *buf = dst;
int i;
if (blkcnt == 0)
return 0;
if (start > (block_dev->lba - 1) ||
(start + blkcnt) > block_dev->lba)
return 0;
memset(dst, 0, blkcnt * block_dev->blksz);
for (i = start; i < (start + blkcnt); i++) {
if (i == 0) {
debug("mbr : %d\n", i);
memcpy(&buf[(i - start) * block_dev->blksz],
plat->mbr, sizeof(legacy_mbr));
} else if (i == 1) {
debug("gpt_h : %d\n", i);
memcpy(&buf[(i - start) * block_dev->blksz],
plat->gpt_h, sizeof(gpt_header));
} else if (i == (block_dev->lba - 1)) {
debug("gpt_h2 : %d\n", i);
memcpy(&buf[(i - start) * block_dev->blksz],
plat->gpt_h2, sizeof(gpt_header));
} else if (i == 2 || i == (block_dev->lba - 33)) {
debug("gpt_e : %d\n", i);
memcpy(&buf[(i - start) * block_dev->blksz],
plat->gpt_e, sizeof(gpt_entry));
} else if (i >= 64 && i < (block_dev->lba - 33)) {
debug("rd : %d\n", i);
memcpy(&buf[(i - start) * block_dev->blksz],
&plat->idb[(i - 64) * block_dev->blksz], block_dev->blksz);
}
}
return blkcnt;
}
ulong rkmtd_bwrite(struct udevice *udev, lbaint_t start,
lbaint_t blkcnt, const void *src)
{
struct blk_desc *block_dev = dev_get_uclass_plat(udev);
struct udevice *parent_dev = dev_get_parent(udev);
struct rkmtd_dev *plat = dev_get_plat(parent_dev);
struct sector0 *sec0;
int i, j;
if (blkcnt == 0)
return 0;
if (start > (block_dev->lba - 1) ||
(start + blkcnt) > block_dev->lba)
return 0;
for (i = start; i < (start + blkcnt); i++) {
debug("wr : %d\n", i);
if (i >= 64 && i < (block_dev->lba - 33)) {
if (i == 64) {
debug("first block\n");
plat->idb_need_write_back = 1;
memset(plat->idb, 0, BUF_SIZE);
}
if (plat->idb_need_write_back) {
char *buf = (char *)src;
memcpy(&plat->idb[(i - 64) * block_dev->blksz],
&buf[(i - start) * block_dev->blksz],
block_dev->blksz);
if (i == 64) {
memcpy(plat->check, plat->idb, 512);
if (*(u32 *)plat->check == RK_TAG) {
rkmtd_rc4(plat->check, 512);
sec0 = (struct sector0 *)plat->check;
plat->offset = sec0->boot_code1_offset;
plat->boot_size = sec0->flash_boot_size;
if (plat->offset + plat->boot_size > 512) {
debug("max size limit\n");
plat->idb_need_write_back = 0;
}
} else {
debug("no IDB block found\n");
plat->idb_need_write_back = 0;
}
}
if (i == (64 + plat->offset + plat->boot_size - 1)) {
debug("last block\n");
plat->idb_need_write_back = 0;
if (!plat->blk_counter) {
plat->idblock[0].blk = 2;
plat->idblock[1].blk = 3;
plat->idblock[2].blk = 4;
plat->idblock[3].blk = 5;
plat->idblock[4].blk = 6;
plat->blk_counter = 5;
}
for (j = 0; j < plat->blk_counter; j++) {
if (plat->idblock[j].blk < plat->boot_blks) {
plat->idblock[j].offset = plat->offset;
plat->idblock[j].boot_size = plat->boot_size;
rkmtd_write_block(plat, j, plat->idb);
}
}
rkmtd_scan_block(plat);
if (!IS_ENABLED(CONFIG_SANDBOX))
memset(plat->idb, 0, BUF_SIZE);
if (plat->blk_counter)
rkmtd_read_block(plat, 0, plat->idb);
}
}
} else if (plat->idb_need_write_back) {
plat->idb_need_write_back = 0;
memset(plat->idb, 0, BUF_SIZE);
if (plat->blk_counter)
rkmtd_read_block(plat, 0, plat->idb);
}
}
return blkcnt;
}
static const struct blk_ops rkmtd_blk_ops = {
.read = rkmtd_bread,
.write = rkmtd_bwrite,
};
U_BOOT_DRIVER(rkmtd_blk) = {
.name = "rkmtd_blk",
.id = UCLASS_BLK,
.ops = &rkmtd_blk_ops,
};
void rkmtd_build_page_table(struct rkmtd_dev *plat)
{
u32 counter;
u32 counter2;
switch (plat->lsb_mode) {
case 0:
counter = 0;
do {
u16 val = counter;
plat->page_table[counter++] = val;
} while (counter != 512);
break;
case 1:
counter = 0;
do {
u16 val = counter;
if (counter > 3) {
u16 offset;
if (counter & 1)
offset = 3;
else
offset = 2;
val = 2 * counter - offset;
}
plat->page_table[counter++] = val;
} while (counter != 512);
break;
case 2:
counter = 0;
do {
u16 val = counter;
if (counter > 1)
val = 2 * counter - 1;
plat->page_table[counter++] = val;
} while (counter != 512);
break;
case 3:
counter = 0;
do {
u16 val = counter;
if (counter > 5) {
u16 offset;
if (counter & 1)
offset = 5;
else
offset = 4;
val = 2 * counter - offset;
}
plat->page_table[counter++] = val;
} while (counter != 512);
break;
case 4:
counter = 8;
plat->page_table[0] = 0;
plat->page_table[1] = 1;
plat->page_table[2] = 2;
plat->page_table[3] = 3;
plat->page_table[4] = 4;
plat->page_table[5] = 5;
plat->page_table[6] = 7;
plat->page_table[7] = 8;
do {
u32 offset;
u32 val;
if (counter & 1)
offset = 7;
else
offset = 6;
val = 2 * counter - offset;
plat->page_table[counter++] = val;
} while (counter != 512);
break;
case 5:
counter = 0;
counter2 = 16;
do {
u16 val = counter;
plat->page_table[counter++] = val;
} while (counter != 16);
do {
plat->page_table[counter++] = counter2;
counter2 = counter2 + 2;
} while (counter != 512);
break;
case 6:
counter = 0;
counter2 = 0;
do {
u16 val = counter;
if (counter > 5) {
u16 offset;
if (counter & 1)
offset = 12;
else
offset = 10;
val = counter2 - offset;
}
plat->page_table[counter++] = val;
counter2 = counter2 + 3;
} while (counter != 512);
break;
case 9:
counter = 3;
counter2 = 3;
plat->page_table[0] = 0;
plat->page_table[1] = 1;
plat->page_table[2] = 2;
do {
plat->page_table[counter++] = counter2;
counter2 = counter2 + 2;
} while (counter != 512);
break;
case 10:
counter = 0;
counter2 = 63;
do {
u16 val = counter;
plat->page_table[counter++] = val;
} while (counter != 63);
do {
plat->page_table[counter++] = counter2;
counter2 = counter2 + 2;
} while (counter != 512);
break;
case 11:
counter = 0;
do {
u16 val = counter;
plat->page_table[counter++] = val;
} while (counter != 8);
do {
u32 offset;
u32 val;
if (counter & 1)
offset = 7;
else
offset = 6;
val = 2 * counter - offset;
plat->page_table[counter++] = val;
} while (counter != 512);
break;
case 12:
counter = 4;
plat->page_table[0] = 0;
plat->page_table[1] = 1;
plat->page_table[2] = 2;
plat->page_table[3] = 3;
do {
u32 val = counter - 1 + (counter >> 1);
plat->page_table[counter++] = val;
} while (counter != 512);
break;
}
}
static inline u32 efi_crc32(const void *buf, u32 len)
{
return crc32(0, buf, len);
}
int rkmtd_init_plat(struct udevice *dev)
{
static const efi_guid_t partition_basic_data_guid = PARTITION_BASIC_DATA_GUID;
struct rkmtd_dev *plat = dev_get_plat(dev);
size_t efiname_len, dosname_len;
uchar name[] = "loader1";
u32 calc_crc32;
int k;
gen_rand_uuid_str(plat->uuid_disk_str, UUID_STR_FORMAT_GUID);
gen_rand_uuid_str(plat->uuid_part_str, UUID_STR_FORMAT_GUID);
debug("uuid_part_str : %s\n", plat->uuid_part_str);
debug("uuid_disk_str : %s\n", plat->uuid_disk_str);
plat->idb = devm_kzalloc(plat->dev, BUF_SIZE, GFP_KERNEL);
if (!plat->idb)
return -ENOMEM;
plat->check = devm_kzalloc(plat->dev, BUF_SIZE, GFP_KERNEL);
if (!plat->check)
return -ENOMEM;
plat->mbr = devm_kzalloc(plat->dev, sizeof(legacy_mbr), GFP_KERNEL);
if (!plat->mbr)
return -ENOMEM;
plat->gpt_e = devm_kzalloc(plat->dev, sizeof(gpt_entry), GFP_KERNEL);
if (!plat->gpt_e)
return -ENOMEM;
plat->gpt_h = devm_kzalloc(plat->dev, sizeof(gpt_header), GFP_KERNEL);
if (!plat->gpt_h)
return -ENOMEM;
plat->gpt_h2 = devm_kzalloc(plat->dev, sizeof(gpt_header), GFP_KERNEL);
if (!plat->gpt_h2)
return -ENOMEM;
/* Init mbr */
plat->mbr->signature = MSDOS_MBR_SIGNATURE;
plat->mbr->partition_record[0].sys_ind = EFI_PMBR_OSTYPE_EFI_GPT;
plat->mbr->partition_record[0].start_sect = 1;
plat->mbr->partition_record[0].nr_sects = LBA - 1;
/* Init gpt_e */
plat->gpt_e->starting_lba = cpu_to_le64(64);
plat->gpt_e->ending_lba = cpu_to_le64(LBA - 34);
debug("starting_lba : %llu\n", le64_to_cpu(plat->gpt_e->starting_lba));
debug("ending_lba : %llu\n", le64_to_cpu(plat->gpt_e->ending_lba));
memcpy(plat->gpt_e->partition_type_guid.b, &partition_basic_data_guid, 16);
uuid_str_to_bin(plat->uuid_part_str, plat->gpt_e->unique_partition_guid.b,
UUID_STR_FORMAT_GUID);
efiname_len = sizeof(plat->gpt_e->partition_name) / sizeof(efi_char16_t);
dosname_len = sizeof(name);
for (k = 0; k < min(dosname_len, efiname_len); k++)
plat->gpt_e->partition_name[k] = (efi_char16_t)(name[k]);
/* Init gpt_h */
plat->gpt_h->signature = cpu_to_le64(GPT_HEADER_SIGNATURE_UBOOT);
plat->gpt_h->revision = cpu_to_le32(GPT_HEADER_REVISION_V1);
plat->gpt_h->header_size = cpu_to_le32(sizeof(gpt_header));
plat->gpt_h->first_usable_lba = cpu_to_le64(64);
plat->gpt_h->last_usable_lba = cpu_to_le64(LBA - 34);
plat->gpt_h->num_partition_entries = cpu_to_le32(1);
plat->gpt_h->sizeof_partition_entry = cpu_to_le32(sizeof(gpt_entry));
uuid_str_to_bin(plat->uuid_disk_str, plat->gpt_h->disk_guid.b,
UUID_STR_FORMAT_GUID);
plat->gpt_h->partition_entry_array_crc32 = 0;
calc_crc32 = efi_crc32((const unsigned char *)plat->gpt_e,
le32_to_cpu(plat->gpt_h->num_partition_entries) *
le32_to_cpu(plat->gpt_h->sizeof_partition_entry));
plat->gpt_h->partition_entry_array_crc32 = cpu_to_le32(calc_crc32);
debug("partition crc32 : 0x%08x\n", calc_crc32);
plat->gpt_h->my_lba = cpu_to_le64(1);
plat->gpt_h->partition_entry_lba = cpu_to_le64(2);
plat->gpt_h->alternate_lba = cpu_to_le64(LBA - 1);
plat->gpt_h->header_crc32 = 0;
calc_crc32 = efi_crc32((const unsigned char *)plat->gpt_h,
le32_to_cpu(plat->gpt_h->header_size));
plat->gpt_h->header_crc32 = cpu_to_le32(calc_crc32);
debug("header h1 crc32 : 0x%08x\n", calc_crc32);
/* Init gpt_h2 */
memcpy(plat->gpt_h2, plat->gpt_h, sizeof(gpt_header));
plat->gpt_h2->my_lba = cpu_to_le64(LBA - 1);
plat->gpt_h2->partition_entry_lba =
cpu_to_le64(le64_to_cpu(plat->gpt_h2->last_usable_lba) + 1);
plat->gpt_h2->alternate_lba = cpu_to_le64(1);
plat->gpt_h2->header_crc32 = 0;
calc_crc32 = efi_crc32((const unsigned char *)plat->gpt_h2,
le32_to_cpu(plat->gpt_h2->header_size));
plat->gpt_h2->header_crc32 = cpu_to_le32(calc_crc32);
debug("header h2 crc32 : 0x%08x\n", calc_crc32);
part_init(plat->desc);
return 0;
}
static void rkmtd_blk_kmalloc_release(struct udevice *dev, void *res)
{
/* noop */
}
static int rkmtd_bind(struct udevice *dev)
{
struct rkmtd_dev *plat = dev_get_plat(dev);
char dev_name[30], *str;
struct blk_desc *desc;
struct udevice *bdev;
int ret;
snprintf(dev_name, sizeof(dev_name), "%s.%s", dev->name, "blk");
str = devres_alloc(rkmtd_blk_kmalloc_release, strlen(dev_name) + 1, GFP_KERNEL);
if (unlikely(!str))
return -ENOMEM;
strcpy(str, dev_name);
ret = blk_create_device(dev, "rkmtd_blk", str, UCLASS_RKMTD,
-1, 512, LBA, &bdev);
if (ret) {
free(str);
return log_msg_ret("blk", ret);
}
devres_add(dev, str);
desc = dev_get_uclass_plat(bdev);
sprintf(desc->vendor, "0x%.4x", 0x2207);
memcpy(desc->product, "RKMTD", sizeof("RKMTD"));
memcpy(desc->revision, "V1.00", sizeof("V1.00"));
plat->desc = desc;
return 0;
}
static int rkmtd_attach_mtd(struct udevice *dev)
{
struct rkmtd_dev *plat = dev_get_plat(dev);
struct mtd_info *mtd;
struct udevice *blk;
int ret;
plat->dev = dev;
/* Sanity check that rkmtd_bind() has been used */
ret = blk_find_from_parent(dev, &blk);
if (ret)
return ret;
#if IS_ENABLED(CONFIG_SANDBOX)
plat->mtd = devm_kzalloc(dev, sizeof(struct mtd_info), GFP_KERNEL);
if (!plat->mtd)
return -ENOMEM;
mtd = plat->mtd;
mtd->erasesize = 2 ^ 3 * BLK_SIZE;
mtd->writesize = BLK_SIZE;
mtd->oobsize = BLK_SIZE / STEP_SIZE * NFC_SYS_DATA_SIZE;
plat->boot_blks = 0;
plat->lsb_mode = 0;
#else
struct nand_chip *chip;
u8 id[6];
int i, j;
u32 tmp;
mtd = get_nand_dev_by_index(0);
if (!mtd)
return -ENOSYS;
chip = mtd_to_nand(mtd);
ret = ofnode_read_u32(chip->flash_node, "rockchip,boot-blks", &tmp);
plat->boot_blks = ret ? 0 : tmp;
plat->mtd = mtd;
if (chip->select_chip)
chip->select_chip(mtd, 0);
nand_readid_op(chip, 0, id, 6);
if (chip->select_chip)
chip->select_chip(mtd, -1);
for (i = 0; i < ARRAY_SIZE(nand_para_tbl); i++) {
plat->info = (struct nand_para_info *)&nand_para_tbl[i];
for (j = 0; j < plat->info->id_bytes; j++) {
if (plat->info->nand_id[j] != id[j])
break;
if (j == plat->info->id_bytes - 1)
goto valid;
}
}
debug("no nand_para_info found\n");
return -ENODEV;
valid:
plat->lsb_mode = plat->info->lsb_mode;
debug("FLASH ID :");
for (j = 0; j < plat->info->id_bytes; j++)
debug(" %x", id[j]);
debug("\n");
#endif
rkmtd_build_page_table(plat);
plat->datbuf = devm_kzalloc(dev, mtd->writesize, GFP_KERNEL);
if (!plat->datbuf)
return -ENOMEM;
plat->oobbuf = devm_kzalloc(dev, mtd->oobsize, GFP_KERNEL);
if (!plat->oobbuf)
return -ENOMEM;
debug("erasesize %8d\n", mtd->erasesize);
debug("writesize %8d\n", mtd->writesize);
debug("oobsize %8d\n", mtd->oobsize);
debug("boot_blks %8d\n", plat->boot_blks);
debug("lsb_mode %8d\n", plat->lsb_mode);
ret = rkmtd_init_plat(dev);
if (ret) {
debug("rkmtd_init_plat failed\n");
return -ENOENT;
}
rkmtd_scan_block(plat);
memset(plat->idb, 0, BUF_SIZE);
if (plat->blk_counter)
rkmtd_read_block(plat, 0, plat->idb);
return 0;
}
int rkmtd_detach_mtd(struct udevice *dev)
{
int ret;
ret = device_remove(dev, DM_REMOVE_NORMAL);
if (ret)
return log_msg_ret("rem", ret);
ret = device_chld_unbind(dev, NULL);
if (ret)
return log_msg_ret("unb", ret);
return 0;
}
struct rkmtd_ops rkmtd_ops = {
.attach_mtd = rkmtd_attach_mtd,
.detach_mtd = rkmtd_detach_mtd,
};
U_BOOT_DRIVER(rkmtd_drv) = {
.name = "rkmtd_drv",
.id = UCLASS_RKMTD,
.ops = &rkmtd_ops,
.bind = rkmtd_bind,
.plat_auto = sizeof(struct rkmtd_dev),
};
struct rkmtd_priv {
struct udevice *cur_dev;
};
void rkmtd_rc4(u8 *buf, u32 len)
{
u8 S[256], K[256], temp;
u32 i, j, t, x;
u8 key[16] = { 124, 78, 3, 4, 85, 5, 9, 7, 45, 44, 123, 56, 23, 13, 23, 17};
j = 0;
for (i = 0; i < 256; i++) {
S[i] = (u8)i;
j &= 0x0f;
K[i] = key[j];
j++;
}
j = 0;
for (i = 0; i < 256; i++) {
j = (j + S[i] + K[i]) % 256;
temp = S[i];
S[i] = S[j];
S[j] = temp;
}
i = 0;
j = 0;
for (x = 0; x < len; x++) {
i = (i + 1) % 256;
j = (j + S[i]) % 256;
temp = S[i];
S[i] = S[j];
S[j] = temp;
t = (S[i] + (S[j] % 256)) % 256;
buf[x] = buf[x] ^ S[t];
}
}
struct udevice *rkmtd_get_cur_dev(void)
{
struct uclass *uc = uclass_find(UCLASS_RKMTD);
if (uc) {
struct rkmtd_priv *priv = uclass_get_priv(uc);
return priv->cur_dev;
}
return NULL;
}
void rkmtd_set_cur_dev(struct udevice *dev)
{
struct uclass *uc = uclass_find(UCLASS_RKMTD);
if (uc) {
struct rkmtd_priv *priv = uclass_get_priv(uc);
priv->cur_dev = dev;
}
}
struct udevice *rkmtd_find_by_label(const char *label)
{
struct udevice *dev;
struct uclass *uc;
uclass_id_foreach_dev(UCLASS_RKMTD, dev, uc) {
struct rkmtd_dev *plat = dev_get_plat(dev);
if (plat->label && !strcmp(label, plat->label))
return dev;
}
return NULL;
}
int rkmtd_attach(struct udevice *dev)
{
struct rkmtd_ops *ops = rkmtd_get_ops(dev);
if (!ops->attach_mtd)
return -ENOSYS;
return ops->attach_mtd(dev);
}
int rkmtd_detach(struct udevice *dev)
{
struct rkmtd_ops *ops = rkmtd_get_ops(dev);
if (!ops->detach_mtd)
return -ENOSYS;
if (dev == rkmtd_get_cur_dev())
rkmtd_set_cur_dev(NULL);
return ops->detach_mtd(dev);
}
static void rkmtd_drv_kmalloc_release(struct udevice *dev, void *res)
{
/* noop */
}
int rkmtd_create_device(const char *label, struct udevice **devp)
{
char dev_name[30], *str, *label_new;
struct udevice *dev, *blk;
struct rkmtd_dev *plat;
int ret;
/* unbind any existing device with this label */
dev = rkmtd_find_by_label(label);
if (dev) {
ret = rkmtd_detach(dev);
if (ret)
return log_msg_ret("det", ret);
ret = device_unbind(dev);
if (ret)
return log_msg_ret("unb", ret);
}
snprintf(dev_name, sizeof(dev_name), "rkmtd-%s", label);
str = devres_alloc(rkmtd_drv_kmalloc_release, strlen(dev_name) + 1, GFP_KERNEL);
if (unlikely(!str))
return -ENOMEM;
strcpy(str, dev_name);
ret = device_bind_driver(dm_root(), "rkmtd_drv", str, &dev);
if (ret) {
free(str);
return log_msg_ret("drv", ret);
}
devres_add(dev, str);
if (!blk_find_from_parent(dev, &blk)) {
struct blk_desc *desc = dev_get_uclass_plat(blk);
desc->removable = true;
}
label_new = devm_kzalloc(dev, strlen(label) + 1, GFP_KERNEL);
if (!label_new)
return -ENOMEM;
strcpy(label_new, label);
plat = dev_get_plat(dev);
plat->label = label_new;
*devp = dev;
return 0;
}
int rkmtd_create_attach_mtd(const char *label, struct udevice **devp)
{
struct udevice *dev;
int ret;
ret = rkmtd_create_device(label, &dev);
if (ret)
return log_msg_ret("cre", ret);
ret = rkmtd_attach(dev);
if (ret) {
device_unbind(dev);
return log_msg_ret("att", ret);
}
*devp = dev;
return 0;
}
UCLASS_DRIVER(rkmtd) = {
.name = "rkmtd",
.id = UCLASS_RKMTD,
.post_bind = dm_scan_fdt_dev,
.priv_auto = sizeof(struct rkmtd_priv),
};
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