diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2017-06-04 11:50:08 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2017-06-12 19:02:51 +0300 |
| commit | be4e456ed3a5918f4e75f532837bb19128a690c9 (patch) | |
| tree | 8778330f11f019811410be6c72ab9b87d00390ca /drivers/ata/sata_gemini.h | |
| parent | 3420fdfaceb2c55823c3ff4674f690a5d1cf0b14 (diff) | |
| download | linux-be4e456ed3a5918f4e75f532837bb19128a690c9.tar.xz | |
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: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/sata_gemini.h')
| -rw-r--r-- | drivers/ata/sata_gemini.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/ata/sata_gemini.h b/drivers/ata/sata_gemini.h new file mode 100644 index 000000000000..ca1837a394c8 --- /dev/null +++ b/drivers/ata/sata_gemini.h @@ -0,0 +1,21 @@ +/* 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 |