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authorRichard Zhu <r65037@freescale.com>2013-07-24 10:15:29 +0400
committerTejun Heo <tj@kernel.org>2013-07-24 20:29:08 +0400
commit9e54eae23bc9cca0d8a955018c35b1250e09a73a (patch)
tree794e33a71a1f190a31b0fbe1b49ee0cd8e4de113 /drivers/ata/Kconfig
parent6a6c21ef487be47b300a0b24cd6afeb69d8b9a1a (diff)
downloadlinux-9e54eae23bc9cca0d8a955018c35b1250e09a73a.tar.xz
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/Kconfig9
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