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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
129 lines
3.1 KiB
C
129 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Google, Inc
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* Written by Amar <amarendra.xt@samsung.com>
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*/
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#include <common.h>
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#include <log.h>
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#include <mmc.h>
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#include "mmc_private.h"
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/*
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* This function changes the size of boot partition and the size of rpmb
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* partition present on EMMC devices.
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*
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* Input Parameters:
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* struct *mmc: pointer for the mmc device strcuture
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* bootsize: size of boot partition
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* rpmbsize: size of rpmb partition
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*
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* Returns 0 on success.
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*/
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int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize,
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unsigned long rpmbsize)
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{
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int err;
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struct mmc_cmd cmd;
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/* Only use this command for raw EMMC moviNAND. Enter backdoor mode */
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cmd.cmdidx = MMC_CMD_RES_MAN;
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cmd.resp_type = MMC_RSP_R1b;
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cmd.cmdarg = MMC_CMD62_ARG1;
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err = mmc_send_cmd(mmc, &cmd, NULL);
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if (err) {
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debug("mmc_boot_partition_size_change: Error1 = %d\n", err);
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return err;
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}
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/* Boot partition changing mode */
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cmd.cmdidx = MMC_CMD_RES_MAN;
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cmd.resp_type = MMC_RSP_R1b;
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cmd.cmdarg = MMC_CMD62_ARG2;
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err = mmc_send_cmd(mmc, &cmd, NULL);
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if (err) {
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debug("mmc_boot_partition_size_change: Error2 = %d\n", err);
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return err;
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}
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/* boot partition size is multiple of 128KB */
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bootsize = (bootsize * 1024) / 128;
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/* Arg: boot partition size */
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cmd.cmdidx = MMC_CMD_RES_MAN;
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cmd.resp_type = MMC_RSP_R1b;
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cmd.cmdarg = bootsize;
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err = mmc_send_cmd(mmc, &cmd, NULL);
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if (err) {
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debug("mmc_boot_partition_size_change: Error3 = %d\n", err);
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return err;
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}
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/* RPMB partition size is multiple of 128KB */
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rpmbsize = (rpmbsize * 1024) / 128;
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/* Arg: RPMB partition size */
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cmd.cmdidx = MMC_CMD_RES_MAN;
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cmd.resp_type = MMC_RSP_R1b;
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cmd.cmdarg = rpmbsize;
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err = mmc_send_cmd(mmc, &cmd, NULL);
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if (err) {
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debug("mmc_boot_partition_size_change: Error4 = %d\n", err);
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return err;
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}
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return 0;
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}
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/*
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* Modify EXT_CSD[177] which is BOOT_BUS_WIDTH
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* based on the passed in values for BOOT_BUS_WIDTH, RESET_BOOT_BUS_WIDTH
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* and BOOT_MODE.
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*
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* Returns 0 on success.
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*/
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int mmc_set_boot_bus_width(struct mmc *mmc, u8 width, u8 reset, u8 mode)
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{
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return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_BUS_WIDTH,
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EXT_CSD_BOOT_BUS_WIDTH_MODE(mode) |
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EXT_CSD_BOOT_BUS_WIDTH_RESET(reset) |
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EXT_CSD_BOOT_BUS_WIDTH_WIDTH(width));
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}
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/*
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* Modify EXT_CSD[179] which is PARTITION_CONFIG (formerly BOOT_CONFIG)
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* based on the passed in values for BOOT_ACK, BOOT_PARTITION_ENABLE and
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* PARTITION_ACCESS.
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*
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* Returns 0 on success.
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*/
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int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
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{
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int ret;
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u8 part_conf;
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part_conf = EXT_CSD_BOOT_ACK(ack) |
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EXT_CSD_BOOT_PART_NUM(part_num) |
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EXT_CSD_PARTITION_ACCESS(access);
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ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
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part_conf);
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if (!ret)
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mmc->part_config = part_conf;
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return ret;
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}
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/*
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* Modify EXT_CSD[162] which is RST_n_FUNCTION based on the given value
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* for enable. Note that this is a write-once field for non-zero values.
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*
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* Returns 0 on success.
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*/
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int mmc_set_rst_n_function(struct mmc *mmc, u8 enable)
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{
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return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_RST_N_FUNCTION,
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enable);
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}
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