Commit be4e456e authored by Linus Walleij's avatar Linus Walleij Committed by Tejun Heo

ata: Add driver for Faraday Technology FTIDE010

This adds a driver for the Faraday Technology FTIDE010
PATA IP block.

When used with the Storlink/Storm/Cortina Systems Gemini
SoC, the PATA interface is accompanied by a PATA<->SATA
bridge, so while the device appear as a PATA controller,
it attaches physically to SATA disks, and also has a
designated memory area with registers to set up the bridge.

The Gemini SATA bridge is separated into its own driver
file to make things modular and make it possible to reuse
the PATA driver as stand-alone on other systems than the
Gemini.

dmesg excerpt from the D-Link DIR-685 storage router:
gemini-sata-bridge 46000000.sata: SATA ID 00000e00, PHY ID: 01000100
gemini-sata-bridge 46000000.sata: set up the Gemini IDE/SATA nexus
ftide010 63000000.ata: set up Gemini PATA0
ftide010 63000000.ata: device ID 00000500, irq 26, io base 0x63000000
ftide010 63000000.ata: SATA0 (master) start
gemini-sata-bridge 46000000.sata: SATA0 PHY ready
scsi host0: pata-ftide010
ata1: PATA max UDMA/133 irq 26
ata1.00: ATA-8: INTEL SSDSA2CW120G3, 4PC10302, max UDMA/133
ata1.00: 234441648 sectors, multi 1: LBA48 NCQ (depth 0/32)
ata1.00: configured for UDMA/133
scsi 0:0:0:0: Direct-Access     ATA      INTEL SSDSA2CW12 0302 PQ: 0 ANSI: 5
ata1.00: Enabling discard_zeroes_data
sd 0:0:0:0: [sda] 234441648 512-byte logical blocks: (120 GB/112 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Write cache: enabled, read cache:
                  enabled, doesn't support DPO or FUA
ata1.00: Enabling discard_zeroes_data
ata1.00: Enabling discard_zeroes_data
sd 0:0:0:0: [sda] Attached SCSI disk

After this I can flawlessly mount and read/write copy etc files
from /dev/sda[n].

Cc: John Feng-Hsin Chiang <john453@faraday-tech.com>
Cc: Greentime Hu <green.hu@gmail.com>
Acked-by: default avatarHans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Linus Walleij's avatarLinus Walleij <linus.walleij@linaro.org>
Acked-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 3420fdfa
......@@ -7531,6 +7531,15 @@ S: Maintained
F: drivers/ata/pata_*.c
F: drivers/ata/ata_generic.c
LIBATA PATA FARADAY FTIDE010 AND GEMINI SATA BRIDGE DRIVERS
M: Linus Walleij <linus.walleij@linaro.org>
L: linux-ide@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
S: Maintained
F: drivers/ata/pata_ftide010.c
F: drivers/ata/sata_gemini.c
F: drivers/ata/sata_gemini.h
LIBATA SATA AHCI PLATFORM devices support
M: Hans de Goede <hdegoede@redhat.com>
M: Tejun Heo <tj@kernel.org>
......
......@@ -213,6 +213,16 @@ config SATA_FSL
If unsure, say N.
config SATA_GEMINI
tristate "Gemini SATA bridge support"
depends on PATA_FTIDE010
default ARCH_GEMINI
help
This enabled support for the FTIDE010 to SATA bridge
found in Cortina Systems Gemini platform.
If unsure, say N.
config SATA_AHCI_SEATTLE
tristate "AMD Seattle 6.0Gbps AHCI SATA host controller support"
depends on ARCH_SEATTLE
......@@ -599,6 +609,17 @@ config PATA_EP93XX
If unsure, say N.
config PATA_FTIDE010
tristate "Faraday Technology FTIDE010 PATA support"
depends on OF
depends on ARM
default ARCH_GEMINI
help
This option enables support for the Faraday FTIDE010
PATA controller found in the Cortina Gemini SoCs.
If unsure, say N.
config PATA_HPT366
tristate "HPT 366/368 PATA support"
depends on PCI
......
......@@ -7,6 +7,7 @@ obj-$(CONFIG_SATA_ACARD_AHCI) += acard-ahci.o libahci.o
obj-$(CONFIG_SATA_AHCI_SEATTLE) += ahci_seattle.o libahci.o libahci_platform.o
obj-$(CONFIG_SATA_AHCI_PLATFORM) += ahci_platform.o libahci.o libahci_platform.o
obj-$(CONFIG_SATA_FSL) += sata_fsl.o
obj-$(CONFIG_SATA_GEMINI) += sata_gemini.o
obj-$(CONFIG_SATA_INIC162X) += sata_inic162x.o
obj-$(CONFIG_SATA_SIL24) += sata_sil24.o
obj-$(CONFIG_SATA_DWC) += sata_dwc_460ex.o
......@@ -60,6 +61,7 @@ obj-$(CONFIG_PATA_CS5536) += pata_cs5536.o
obj-$(CONFIG_PATA_CYPRESS) += pata_cypress.o
obj-$(CONFIG_PATA_EFAR) += pata_efar.o
obj-$(CONFIG_PATA_EP93XX) += pata_ep93xx.o
obj-$(CONFIG_PATA_FTIDE010) += pata_ftide010.o
obj-$(CONFIG_PATA_HPT366) += pata_hpt366.o
obj-$(CONFIG_PATA_HPT37X) += pata_hpt37x.o
obj-$(CONFIG_PATA_HPT3X2N) += pata_hpt3x2n.o
......
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/* Header for the Gemini SATA bridge */
#ifndef SATA_GEMINI_H
#define SATA_GEMINI_H
struct sata_gemini;
enum gemini_muxmode {
GEMINI_MUXMODE_0 = 0,
GEMINI_MUXMODE_1,
GEMINI_MUXMODE_2,
GEMINI_MUXMODE_3,
};
struct sata_gemini *gemini_sata_bridge_get(void);
bool gemini_sata_bridge_enabled(struct sata_gemini *sg, bool is_ata1);
enum gemini_muxmode gemini_sata_get_muxmode(struct sata_gemini *sg);
int gemini_sata_start_bridge(struct sata_gemini *sg, unsigned int bridge);
void gemini_sata_stop_bridge(struct sata_gemini *sg, unsigned int bridge);
int gemini_sata_reset_bridge(struct sata_gemini *sg, unsigned int bridge);
#endif
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