diff options
Diffstat (limited to 'package/boot/uboot-mediatek/patches/000-mtk-21-mmc-mtk-sd-don-t-ignore-max-frequency-from-device-tr.patch')
| -rw-r--r-- | package/boot/uboot-mediatek/patches/000-mtk-21-mmc-mtk-sd-don-t-ignore-max-frequency-from-device-tr.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/package/boot/uboot-mediatek/patches/000-mtk-21-mmc-mtk-sd-don-t-ignore-max-frequency-from-device-tr.patch b/package/boot/uboot-mediatek/patches/000-mtk-21-mmc-mtk-sd-don-t-ignore-max-frequency-from-device-tr.patch new file mode 100644 index 0000000000..37810f9d74 --- /dev/null +++ b/package/boot/uboot-mediatek/patches/000-mtk-21-mmc-mtk-sd-don-t-ignore-max-frequency-from-device-tr.patch @@ -0,0 +1,31 @@ +From 4bdab0ea008113dda4e001ab8d6863945000c1b2 Mon Sep 17 00:00:00 2001 +From: Daniel Golle <daniel@makrotopia.org> +Date: Thu, 11 Mar 2021 14:58:26 +0000 +Subject: [PATCH 21/21] mmc: mtk-sd: don't ignore max-frequency from device + tree + +commit e58e68d9 ("mmc: mtk-sd: assign plat->cfg.f_max with a correct value") +wrongly assumed that plat->cfg.f_max is always unset at the time +mscd_drv_probe() is run. This is not true in case max-frequency being +defined in device tree, as it is then already set by mmc_of_parser() +in msdc_of_to_plat(). +Only set plat->cfg.f_max to the default maximum value in case it is +not already set to a sane value. + +Signed-off-by: Daniel Golle <daniel@makrotopia.org> +--- + drivers/mmc/mtk-sd.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/drivers/mmc/mtk-sd.c ++++ b/drivers/mmc/mtk-sd.c +@@ -1644,7 +1644,8 @@ static int msdc_drv_probe(struct udevice + if (cfg->f_min < MIN_BUS_CLK) + cfg->f_min = MIN_BUS_CLK; + +- cfg->f_max = host->src_clk_freq; ++ if (cfg->f_max < cfg->f_min || cfg->f_max > host->src_clk_freq) ++ cfg->f_max = host->src_clk_freq; + + cfg->b_max = 1024; + cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34; |