hw/sd: Use sdbus_write_data() instead of sdbus_write_byte when possible

Use the recently added sdbus_write_data() to write multiple
bytes at once, instead of looping calling sdbus_write_byte().

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200814092346.21825-6-f4bug@amsat.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/hw/sd/milkymist-memcard.c b/hw/sd/milkymist-memcard.c
index e8d055b..12e091a 100644
--- a/hw/sd/milkymist-memcard.c
+++ b/hw/sd/milkymist-memcard.c
@@ -181,6 +181,7 @@ static void memcard_write(void *opaque, hwaddr addr, uint64_t value,
                           unsigned size)
 {
     MilkymistMemcardState *s = opaque;
+    uint32_t val32;
 
     trace_milkymist_memcard_memory_write(addr, value);
 
@@ -209,10 +210,8 @@ static void memcard_write(void *opaque, hwaddr addr, uint64_t value,
         if (!s->enabled) {
             break;
         }
-        sdbus_write_byte(&s->sdbus, (value >> 24) & 0xff);
-        sdbus_write_byte(&s->sdbus, (value >> 16) & 0xff);
-        sdbus_write_byte(&s->sdbus, (value >> 8) & 0xff);
-        sdbus_write_byte(&s->sdbus, value & 0xff);
+        val32 = cpu_to_be32(value);
+        sdbus_write_data(&s->sdbus, &val32, sizeof(val32));
         break;
     case R_ENABLE:
         s->regs[addr] = value;