From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Wed, 22 Jul 2020 21:15:36 +0000 (+0200)
Subject: liblitesdcard/sdcard: use max divider of 256 (128 was not enough for the initial... 
X-Git-Tag: 24jan2021_ls180~62
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8bdf6941a36e6f386132fae7107bed0d85186541;p=litex.git

liblitesdcard/sdcard: use max divider of 256 (128 was not enough for the initial 400Khz clock frequency).
---

diff --git a/litex/soc/software/liblitesdcard/sdcard.c b/litex/soc/software/liblitesdcard/sdcard.c
index 5089939d..9c2a5622 100644
--- a/litex/soc/software/liblitesdcard/sdcard.c
+++ b/litex/soc/software/liblitesdcard/sdcard.c
@@ -132,7 +132,7 @@ static void sdcard_set_clk_freq(uint32_t clk_freq) {
     divider = CONFIG_CLOCK_FREQUENCY/clk_freq + 1;
     divider = (1 << log2(divider));
     divider = max(divider,   2);
-    divider = min(divider, 128);
+    divider = min(divider, 256);
 #ifdef SDCARD_DEBUG
     printf("Setting SDCard clk freq to ");
     if (clk_freq > 1000000)