diff options
Diffstat (limited to 'target/linux/ar71xx/patches-4.9/461-spi-ath79-add-fast-flash-read.patch')
-rw-r--r-- | target/linux/ar71xx/patches-4.9/461-spi-ath79-add-fast-flash-read.patch | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/target/linux/ar71xx/patches-4.9/461-spi-ath79-add-fast-flash-read.patch b/target/linux/ar71xx/patches-4.9/461-spi-ath79-add-fast-flash-read.patch deleted file mode 100644 index 5c3583f758..0000000000 --- a/target/linux/ar71xx/patches-4.9/461-spi-ath79-add-fast-flash-read.patch +++ /dev/null @@ -1,60 +0,0 @@ ---- a/drivers/spi/spi-ath79.c -+++ b/drivers/spi/spi-ath79.c -@@ -102,9 +102,6 @@ static void ath79_spi_enable(struct ath7 - /* save CTRL register */ - sp->reg_ctrl = ath79_spi_rr(sp, AR71XX_SPI_REG_CTRL); - sp->ioc_base = ath79_spi_rr(sp, AR71XX_SPI_REG_IOC); -- -- /* TODO: setup speed? */ -- ath79_spi_wr(sp, AR71XX_SPI_REG_CTRL, 0x43); - } - - static void ath79_spi_disable(struct ath79_spi *sp) -@@ -205,6 +202,38 @@ static u32 ath79_spi_txrx_mode0(struct s - return ath79_spi_rr(sp, AR71XX_SPI_REG_RDS); - } - -+static bool ath79_spi_flash_read_supported(struct spi_device *spi) -+{ -+ if (spi->chip_select || gpio_is_valid(spi->cs_gpio)) -+ return false; -+ -+ return true; -+} -+ -+static int ath79_spi_read_flash_data(struct spi_device *spi, -+ struct spi_flash_read_message *msg) -+{ -+ struct ath79_spi *sp = ath79_spidev_to_sp(spi); -+ -+ if (msg->addr_width > 3) -+ return -EOPNOTSUPP; -+ -+ /* disable GPIO mode */ -+ ath79_spi_wr(sp, AR71XX_SPI_REG_FS, 0); -+ -+ memcpy_fromio(msg->buf, sp->base + msg->from, msg->len); -+ -+ /* enable GPIO mode */ -+ ath79_spi_wr(sp, AR71XX_SPI_REG_FS, AR71XX_SPI_FS_GPIO); -+ -+ /* restore IOC register */ -+ ath79_spi_wr(sp, AR71XX_SPI_REG_IOC, sp->ioc_base); -+ -+ msg->retlen = msg->len; -+ -+ return 0; -+} -+ - static int ath79_spi_probe(struct platform_device *pdev) - { - struct spi_master *master; -@@ -234,6 +263,8 @@ static int ath79_spi_probe(struct platfo - master->num_chipselect = pdata->num_chipselect; - master->cs_gpios = pdata->cs_gpios; - } -+ master->spi_flash_read = ath79_spi_read_flash_data; -+ master->flash_read_supported = ath79_spi_flash_read_supported; - - sp->bitbang.master = master; - sp->bitbang.chipselect = ath79_spi_chipselect; |