From patchwork Thu Mar 19 09:59:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Patrick Delaunay X-Patchwork-Id: 243913 List-Id: U-Boot discussion From: patrick.delaunay at st.com (Patrick Delaunay) Date: Thu, 19 Mar 2020 10:59:35 +0100 Subject: [PATCH 3/3] env: mmc: add redundancy support in mmc_offset_try_partition In-Reply-To: <20200319105917.1.Ib0b23085d678421d429580e13560b4dad27c9378@changeid> References: <20200319105917.1.Ib0b23085d678421d429580e13560b4dad27c9378@changeid> Message-ID: <20200319105917.3.I3f39ef337e2318d7c857e0458d5bc66e374dfaba@changeid> Manage 2 copy at the end of the partition selected by config "u-boot,mmc-env-partition" to save the U-Boot environment, with CONFIG_ENV_SIZE and 2*CONFIG_ENV_SIZE offset. This patch allows to support redundancy (CONFIG_ENV_OFFSET_REDUND). Signed-off-by: Patrick Delaunay --- env/mmc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/env/mmc.c b/env/mmc.c index c24b169f3e..677a3d4668 100644 --- a/env/mmc.c +++ b/env/mmc.c @@ -34,7 +34,7 @@ __weak int mmc_get_env_dev(void) } #if CONFIG_IS_ENABLED(OF_CONTROL) -static inline int mmc_offset_try_partition(const char *str, s64 *val) +static inline int mmc_offset_try_partition(const char *str, int copy, s64 *val) { disk_partition_t info; struct blk_desc *desc; @@ -59,7 +59,7 @@ static inline int mmc_offset_try_partition(const char *str, s64 *val) len = DIV_ROUND_UP(CONFIG_ENV_SIZE, info.blksz); /* use the top of the partion for the environment */ - *val = (info.start + info.size - len) * info.blksz; + *val = (info.start + info.size - (1 + copy) * len) * info.blksz; return 0; } @@ -84,7 +84,7 @@ static inline s64 mmc_offset(int copy) str = fdtdec_get_config_string(gd->fdt_blob, dt_prop.partition); if (str) { /* try to place the environment at end of the partition */ - err = mmc_offset_try_partition(str, &val); + err = mmc_offset_try_partition(str, copy, &val); if (!err) return val; }