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ramips: fix 16 bit IO on newer cores 

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@49203 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
John Crispin 2016-04-20 16:49:19 +00:00
parent dfcf8a8dbe
commit 53c70521a6
1 changed files with 6 additions and 5 deletions
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11
target/linux/ramips/patches-3.18/0061-SPI-ralink-add-mt7621-SoC-spi-driver.patch
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@ -25,7 +25,7 @@
obj-$(CONFIG_SPI_OC_TINY) += spi-oc-tiny.o
--- /dev/null
+++ b/drivers/spi/spi-mt7621.c
@@ -0,0 +1,390 @@
@@ -0,0 +1,391 @@
+/*
+ * spi-mt7621.c -- MediaTek MT7621 SPI controller driver
+ *
@ -217,19 +217,20 @@
+
+ list_for_each_entry(t, &m->transfers, transfer_list) {
+ const u8 *buf = t->tx_buf;
+ int rlen = t->len;
+
+ if (t->rx_buf)
+ rx_len += t->len;
+ rx_len += rlen;
+
+ if (!buf)
+ continue;
+
+ if (WARN_ON(len + t->len > 36)) {
+ if (WARN_ON(len + rlen > 36)) {
+ status = -EIO;
+ goto msg_done;
+ }
+
+ for (i = 0; i < t->len; i++, len++)
+ for (i = 0; i < rlen; i++, len++)
+ data[len / 4] |= buf[i] << (8 * (len & 3));
+ }
+
@ -363,7 +364,7 @@
+
+ master->setup = mt7621_spi_setup;
+ master->transfer_one_message = mt7621_spi_transfer_one_message;
+ master->bits_per_word_mask = SPI_BPW_MASK(8);
+ master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 16);
+ master->dev.of_node = pdev->dev.of_node;
+ master->num_chipselect = 2;
+