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ath79: mikrotik: update nand-rb4xx driver 

This updates the NAND driver for MikroTik RB4XX series to work with
kernel 5.10, similarly to the ar934x-nand driver (fb64e2c3).

Support for kernel 5.10 was added to all ath79 subtargets except for the
mikrotik one by commit d6b785d, since patch 920-mikrotik-rb4xx.patch
needed to be reworked. Later, commit f8512661 enabled kernel 5.10 for
the mikrotik subtarget with the nand-rb4xx driver still pending, which
is updated and added back by this patch.

Compile-tested only.

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
This commit is contained in:
Roger Pueyo Centelles 2021-04-09 17:12:31 +02:00 committed by Hauke Mehrtens
parent 07e5e03711
commit f724a583dc
4 changed files with 98 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
target/linux/ath79/files/drivers/mtd/nand/raw/nand_rb4xx.c
View File

@ -188,10 +188,15 @@ static int rb4xx_nand_probe(struct platform_device *pdev)
if (mtd->writesize == 512)
mtd_set_ooblayout(mtd, &rb4xx_nand_ecclayout_ops);
nand->chip.ecc.mode = NAND_ECC_SOFT;
nand->chip.ecc.algo = NAND_ECC_HAMMING;
nand->chip.options = NAND_NO_SUBPAGE_WRITE;
nand->chip.priv = nand;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0)
nand->chip.ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
nand->chip.ecc.algo = NAND_ECC_ALGO_HAMMING;
#else
nand->chip.ecc.mode = NAND_ECC_SOFT;
nand->chip.ecc.algo = NAND_ECC_HAMMING;
#endif
nand->chip.options = NAND_NO_SUBPAGE_WRITE;
nand->chip.priv = nand;
nand->chip.legacy.read_byte = rb4xx_nand_read_byte;
nand->chip.legacy.write_buf = rb4xx_nand_write_buf;
@ -206,7 +211,12 @@ static int rb4xx_nand_probe(struct platform_device *pdev)
ret = mtd_device_register(mtd, NULL, 0);
if (ret) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0)
mtd_device_unregister(nand_to_mtd(&nand->chip));
nand_cleanup(&nand->chip);
#else
nand_release(&nand->chip);
#endif
return ret;
}
@ -217,7 +227,12 @@ static int rb4xx_nand_remove(struct platform_device *pdev)
{
struct rb4xx_nand *nand = platform_get_drvdata(pdev);
nand_release(&nand->chip);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0)
mtd_device_unregister(nand_to_mtd(&nand->chip));
nand_cleanup(&nand->chip);
#else
nand_release(&nand->chip);
#endif
return 0;
}

7
target/linux/ath79/patches-5.10/0052-mtd-spi-nor-use-4-bit-locking-for-MX25L12805D.patch
View File

@ -19,11 +19,9 @@ Signed-off-by: David Bauer <mail@david-bauer.net>
drivers/mtd/spi-nor/macronix.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c
index 2d39dd32a64e..ed8b56a0102f 100644
--- a/drivers/mtd/spi-nor/macronix.c
+++ b/drivers/mtd/spi-nor/macronix.c
@@ -50,7 +50,8 @@ static const struct flash_info macronix_parts[] = {
@@ -50,7 +50,8 @@ static const struct flash_info macronix_
{ "mx25u4035", INFO(0xc22533, 0, 64 * 1024, 8, SECT_4K) },
{ "mx25u8035", INFO(0xc22534, 0, 64 * 1024, 16, SECT_4K) },
{ "mx25u6435f", INFO(0xc22537, 0, 64 * 1024, 128, SECT_4K) },
@ -33,6 +31,3 @@ index 2d39dd32a64e..ed8b56a0102f 100644
{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
{ "mx25r1635f", INFO(0xc22815, 0, 64 * 1024, 32,
SECT_4K | SPI_NOR_DUAL_READ |
--
2.31.1

2
target/linux/ath79/patches-5.10/410-spi-ath79-Implement-the-spi_mem-interface.patch
View File

@ -58,7 +58,7 @@ Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
static int ath79_spi_probe(struct platform_device *pdev)
{
struct spi_master *master;
@@ -164,6 +198,7 @@ static int ath79_spi_probe(struct platfo
@@ -163,6 +197,7 @@ static int ath79_spi_probe(struct platfo
ret = PTR_ERR(sp->base);
goto err_put_master;
}

76
target/linux/ath79/patches-5.10/920-mikrotik-rb4xx.patch Normal file
View File

@ -0,0 +1,76 @@
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -2141,6 +2141,14 @@ config RAVE_SP_CORE
Select this to get support for the Supervisory Processor
device found on several devices in RAVE line of hardware.
+config MFD_RB4XX_CPLD
+ tristate "CPLD driver for Mikrotik RB4xx series boards
+ select MFD_CORE
+ depends on ATH79 || COMPILE_TEST
+ help
+ Enables support for the CPLD chip (NAND & GPIO) on Mikrotik
+ Routerboard RB4xx series.
+
config SGI_MFD_IOC3
tristate "SGI IOC3 core driver"
depends on PCI && MIPS && 64BIT
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -264,6 +264,7 @@ obj-$(CONFIG_MFD_ROHM_BD718XX) += rohm-b
obj-$(CONFIG_MFD_STMFX) += stmfx.o
obj-$(CONFIG_MFD_KHADAS_MCU) += khadas-mcu.o
+obj-$(CONFIG_MFD_RB4XX_CPLD) += rb4xx-cpld.o
obj-$(CONFIG_SGI_MFD_IOC3) += ioc3.o
obj-$(CONFIG_MFD_SIMPLE_MFD_I2C) += simple-mfd-i2c.o
obj-$(CONFIG_MFD_INTEL_M10_BMC) += intel-m10-bmc.o
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -1518,6 +1518,12 @@ config GPIO_SODAVILLE
help
Say Y here to support Intel Sodaville GPIO.
+config GPIO_RB4XX
+ tristate "GPIO expander for Mikrotik RB4xx series boards"
+ depends on MFD_RB4XX_CPLD
+ help
+ GPIO driver for Mikrotik Routerboard RB4xx series.
+
endmenu
menu "SPI GPIO expanders"
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -120,6 +120,7 @@ obj-$(CONFIG_GPIO_PL061) += gpio-pl061.
obj-$(CONFIG_GPIO_PMIC_EIC_SPRD) += gpio-pmic-eic-sprd.o
obj-$(CONFIG_GPIO_PXA) += gpio-pxa.o
obj-$(CONFIG_GPIO_RASPBERRYPI_EXP) += gpio-raspberrypi-exp.o
+obj-$(CONFIG_GPIO_RB4XX) += gpio-rb4xx.o
obj-$(CONFIG_GPIO_RC5T583) += gpio-rc5t583.o
obj-$(CONFIG_GPIO_RCAR) += gpio-rcar.o
obj-$(CONFIG_GPIO_RDA) += gpio-rda.o
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -564,4 +564,11 @@ config MTD_NAND_AR934X
Enables support for NAND controller on Qualcomm Atheros SoCs.
This controller is found on AR934x and QCA955x SoCs.
+config MTD_NAND_RB4XX
+ tristate "Support for NAND driver for Mikrotik RB4xx series boards"
+ depends on MFD_RB4XX_CPLD
+ help
+ Enables support for the NAND flash chip on Mikrotik Routerboard
+ RB4xx series.
+
endif # MTD_RAW_NAND
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -59,6 +59,7 @@ obj-$(CONFIG_MTD_NAND_MESON) += meson_n
obj-$(CONFIG_MTD_NAND_CADENCE) += cadence-nand-controller.o
obj-$(CONFIG_MTD_NAND_ARASAN) += arasan-nand-controller.o
obj-$(CONFIG_MTD_NAND_AR934X) += ar934x_nand.o
+obj-$(CONFIG_MTD_NAND_RB4XX) += nand_rb4xx.o
nand-objs := nand_base.o nand_legacy.o nand_bbt.o nand_timings.o nand_ids.o
nand-objs += nand_onfi.o