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author | David Bauer <mail@david-bauer.net> | 2021-02-17 01:29:44 +0100 |
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committer | David Bauer <mail@david-bauer.net> | 2021-02-20 01:26:33 +0100 |
commit | d6b785d47739a84611088ab26256fa5808d06a9d (patch) | |
tree | d45ffa6e6182ce80ec35663de8c514888655e1b8 /target/linux/ath79/patches-5.10/410-spi-ath79-Implement-the-spi_mem-interface.patch | |
parent | fb64e2c30f0cba887d3b183ce52de36b3e8bbb7e (diff) | |
download | upstream-d6b785d47739a84611088ab26256fa5808d06a9d.tar.gz upstream-d6b785d47739a84611088ab26256fa5808d06a9d.tar.bz2 upstream-d6b785d47739a84611088ab26256fa5808d06a9d.zip |
ath79: add kernel 5.10 support
This adds Kernel 5.10 support for the generic, nand and tiny subtargets.
The following patch is not contained, as it needs to be reworked:
platform/920-mikrotik-rb4xx.patch
Tested-on:
- Siemens WS-AP3610
- Enterasys WS-AP3710
- Aerohive HiveAP 121
- TP-Link TL-WA901 v2
- TP-Link TL-WR741 v1
Signed-off-by: David Bauer <mail@david-bauer.net>
Diffstat (limited to 'target/linux/ath79/patches-5.10/410-spi-ath79-Implement-the-spi_mem-interface.patch')
-rw-r--r-- | target/linux/ath79/patches-5.10/410-spi-ath79-Implement-the-spi_mem-interface.patch | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/target/linux/ath79/patches-5.10/410-spi-ath79-Implement-the-spi_mem-interface.patch b/target/linux/ath79/patches-5.10/410-spi-ath79-Implement-the-spi_mem-interface.patch new file mode 100644 index 0000000000..2a6b9857fb --- /dev/null +++ b/target/linux/ath79/patches-5.10/410-spi-ath79-Implement-the-spi_mem-interface.patch @@ -0,0 +1,68 @@ +From 8d8cdb4a6ccee5b62cc0dc64651c3946364514dc Mon Sep 17 00:00:00 2001 +From: Luiz Angelo Daros de Luca <luizluca@gmail.com> +Date: Mon, 10 Feb 2020 16:11:27 -0300 +Subject: [PATCH] spi: ath79: Implement the spi_mem interface + +Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com> +--- + drivers/spi/spi-ath79.c | 35 +++++++++++++++++++++++++++++++++++ + 1 file changed, 35 insertions(+) + +--- a/drivers/spi/spi-ath79.c ++++ b/drivers/spi/spi-ath79.c +@@ -15,6 +15,7 @@ + #include <linux/platform_device.h> + #include <linux/io.h> + #include <linux/spi/spi.h> ++#include <linux/spi/spi-mem.h> + #include <linux/spi/spi_bitbang.h> + #include <linux/bitops.h> + #include <linux/clk.h> +@@ -133,6 +134,39 @@ static u32 ath79_spi_txrx_mode0(struct s + return ath79_spi_rr(sp, AR71XX_SPI_REG_RDS); + } + ++static int ath79_exec_mem_op(struct spi_mem *mem, ++ const struct spi_mem_op *op) ++{ ++ struct ath79_spi *sp = ath79_spidev_to_sp(mem->spi); ++ ++ /* Ensures that reading is performed on device connected ++ to hardware cs0 */ ++ if (mem->spi->chip_select || mem->spi->cs_gpiod) ++ return -ENOTSUPP; ++ ++ /* Only use for fast-read op. */ ++ if (op->cmd.opcode != 0x0b || op->data.dir != SPI_MEM_DATA_IN || ++ op->addr.nbytes != 3 || op->dummy.nbytes != 1) ++ return -ENOTSUPP; ++ ++ /* disable GPIO mode */ ++ ath79_spi_wr(sp, AR71XX_SPI_REG_FS, 0); ++ ++ memcpy_fromio(op->data.buf.in, sp->base + op->addr.val, op->data.nbytes); ++ ++ /* 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); ++ ++ return 0; ++} ++ ++static const struct spi_controller_mem_ops ath79_mem_ops = { ++ .exec_op = ath79_exec_mem_op, ++}; ++ + static int ath79_spi_probe(struct platform_device *pdev) + { + struct spi_master *master; +@@ -163,6 +197,7 @@ static int ath79_spi_probe(struct platfo + ret = PTR_ERR(sp->base); + goto err_put_master; + } ++ master->mem_ops = &ath79_mem_ops; + + sp->clk = devm_clk_get(&pdev->dev, "ahb"); + if (IS_ERR(sp->clk)) { |