bcm53xx: remove support for kernel 4.14

We currently support three kernel versions on this target, let's
just get rid of the oldest one.

Cc: Rafał Miłecki <rafal@milecki.pl>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 0 insertions, 107 deletions

diff --git a/target/linux/bcm53xx/patches-4.14/080-spi-bcm53xx-simplify-reading-SPI-data.patch b/target/linux/bcm53xx/patches-4.14/080-spi-bcm53xx-simplify-reading-SPI-data.patch
deleted file mode 100644
index ee377c491f..0000000000
--- a/target/linux/bcm53xx/patches-4.14/080-spi-bcm53xx-simplify-reading-SPI-data.patch
+++ /dev/null
@@ -1,107 +0,0 @@
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Fri, 29 Dec 2017 14:44:09 +0100
-Subject: [PATCH] spi: bcm53xx: simplify reading SPI data
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-This commit makes transfer function use spi_transfer_is_last to
-determine if currently processed transfer is the last one. Thanks to
-that we finally set hardware registers properly and it makes controller
-behave the way it's expected to.
-
-This allows simplifying read function which can now simply start reading
-from the slot 0 instead of the last saved offset. It has been
-successfully tested using spi_write_then_read.
-
-Moreover this change fixes handling messages with two writing transfers.
-It's important for SPI flash devices as their drivers commonly use one
-transfer for a command and another one for data.
-
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
----
- drivers/spi/spi-bcm53xx.c | 26 ++++++++++----------------
- 1 file changed, 10 insertions(+), 16 deletions(-)
-
---- a/drivers/spi/spi-bcm53xx.c
-+++ b/drivers/spi/spi-bcm53xx.c
-@@ -27,8 +27,6 @@ struct bcm53xxspi {
- 	struct bcma_device *core;
- 	struct spi_master *master;
- 	void __iomem *mmio_base;
--
--	size_t read_offset;
- 	bool bspi;				/* Boot SPI mode with memory mapping */
- };
- 
-@@ -172,8 +170,6 @@ static void bcm53xxspi_buf_write(struct
- 
- 	if (!cont)
- 		bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 0);
--
--	b53spi->read_offset = len;
- }
- 
- static void bcm53xxspi_buf_read(struct bcm53xxspi *b53spi, u8 *r_buf,
-@@ -182,10 +178,10 @@ static void bcm53xxspi_buf_read(struct b
- 	u32 tmp;
- 	int i;
- 
--	for (i = 0; i < b53spi->read_offset + len; i++) {
-+	for (i = 0; i < len; i++) {
- 		tmp = B53SPI_CDRAM_CONT | B53SPI_CDRAM_PCS_DISABLE_ALL |
- 		      B53SPI_CDRAM_PCS_DSCK;
--		if (!cont && i == b53spi->read_offset + len - 1)
-+		if (!cont && i == len - 1)
- 			tmp &= ~B53SPI_CDRAM_CONT;
- 		tmp &= ~0x1;
- 		/* Command Register File */
-@@ -194,8 +190,7 @@ static void bcm53xxspi_buf_read(struct b
- 
- 	/* Set queue pointers */
- 	bcm53xxspi_write(b53spi, B53SPI_MSPI_NEWQP, 0);
--	bcm53xxspi_write(b53spi, B53SPI_MSPI_ENDQP,
--			 b53spi->read_offset + len - 1);
-+	bcm53xxspi_write(b53spi, B53SPI_MSPI_ENDQP, len - 1);
- 
- 	if (cont)
- 		bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 1);
-@@ -214,13 +209,11 @@ static void bcm53xxspi_buf_read(struct b
- 		bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 0);
- 
- 	for (i = 0; i < len; ++i) {
--		int offset = b53spi->read_offset + i;
-+		u16 reg = B53SPI_MSPI_RXRAM + 4 * (1 + i * 2);
- 
- 		/* Data stored in the transmit register file LSB */
--		r_buf[i] = (u8)bcm53xxspi_read(b53spi, B53SPI_MSPI_RXRAM + 4 * (1 + offset * 2));
-+		r_buf[i] = (u8)bcm53xxspi_read(b53spi, reg);
- 	}
--
--	b53spi->read_offset = 0;
- }
- 
- static int bcm53xxspi_transfer_one(struct spi_master *master,
-@@ -238,7 +231,8 @@ static int bcm53xxspi_transfer_one(struc
- 		left = t->len;
- 		while (left) {
- 			size_t to_write = min_t(size_t, 16, left);
--			bool cont = left - to_write > 0;
-+			bool cont = !spi_transfer_is_last(master, t) ||
-+				    left - to_write > 0;
- 
- 			bcm53xxspi_buf_write(b53spi, buf, to_write, cont);
- 			left -= to_write;
-@@ -250,9 +244,9 @@ static int bcm53xxspi_transfer_one(struc
- 		buf = (u8 *)t->rx_buf;
- 		left = t->len;
- 		while (left) {
--			size_t to_read = min_t(size_t, 16 - b53spi->read_offset,
--					       left);
--			bool cont = left - to_read > 0;
-+			size_t to_read = min_t(size_t, 16, left);
-+			bool cont = !spi_transfer_is_last(master, t) ||
-+				    left - to_read > 0;
- 
- 			bcm53xxspi_buf_read(b53spi, buf, to_read, cont);
- 			left -= to_read;