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| author | Richard Zhu <r65037@freescale.com> | 2013-07-24 14:15:29 +0800 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-07-24 12:29:08 -0400 |
| commit | 9e54eae23bc9cca0d8a955018c35b1250e09a73a (patch) | |
| tree | 794e33a71a1f190a31b0fbe1b49ee0cd8e4de113 /drivers/ata/Kconfig | |
| parent | 6a6c21ef487be47b300a0b24cd6afeb69d8b9a1a (diff) | |
| download | linux-9e54eae23bc9cca0d8a955018c35b1250e09a73a.tar.bz2 | |
ahci_imx: add ahci sata support on imx platforms
imx6q contains one Synopsys AHCI SATA controller, But it can't share
ahci_platform driver with other controllers because there are some
misalignments of the generic AHCI controller - the bits definitions of
the HBA registers, the Vendor Specific registers, the AHCI PHY clock
and the AHCI signals adjustment window(GPR13 register).
- CAP_SSS(bit20) of the HOST_CAP is writable, default value is '0',
should be configured to be '1'
- bit0 (only one AHCI SATA port on imx6q) of the HOST_PORTS_IMPL
should be set to be '1'.(default 0)
- One Vendor Specific register HOST_TIMER1MS(offset:0xe0) should be
configured regarding to the frequency of AHB bus clock.
- Configurations of the AHCI PHY clock, and the signal parameters of
the GPR13
Setup its own ahci sata driver, contained the imx6q specific
initialized codes, re-use the generic ahci_platform driver, and keep
the generic ahci_platform driver clean as much as possible.
tj: patch description reformatted
Signed-off-by: Richard Zhu <r65037@freescale.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/Kconfig')
| -rw-r--r-- | drivers/ata/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 5cddaf86cd0a..a4af0a2a089c 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -97,6 +97,15 @@ config SATA_AHCI_PLATFORM If unsure, say N. +config AHCI_IMX + tristate "Freescale i.MX AHCI SATA support" + depends on SATA_AHCI_PLATFORM + help + This option enables support for the Freescale i.MX SoC's + onboard AHCI SATA. + + If unsure, say N. + config SATA_FSL tristate "Freescale 3.0Gbps SATA support" depends on FSL_SOC |