diff options
| author | Richard Zhu <r65037@freescale.com> | 2012-04-20 14:37:56 +0800 |
|---|---|---|
| committer | Frank Li <Frank.Li@freescale.com> | 2012-04-20 17:51:11 +0800 |
| commit | d47e74ee8ff69a6a9298cff814658b27634cd1c9 (patch) | |
| tree | 8dfaab1f8a72305c2294ff3c2ebb58cb32b57590 | |
| parent | 63d4420bf5f801b5e661be3849ea13cc2a5fd87a (diff) | |
ENGR00180412 MX6 SATA: Enable PHY in the SATA initilization
iENGR00179574: MX6- Add bus frequency scaling support disable
SATA PHY defaultly
Enable PHY in the SATA initilization, make sure the SATA work well.
Signed-off-by: Richard Zhu <r65037@freescale.com>
| -rw-r--r-- | arch/arm/plat-mxc/ahci_sata.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/arm/plat-mxc/ahci_sata.c b/arch/arm/plat-mxc/ahci_sata.c index 0d78a123a469..cee34b6f70d9 100644 --- a/arch/arm/plat-mxc/ahci_sata.c +++ b/arch/arm/plat-mxc/ahci_sata.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright (C) 2011-2012 Freescale Semiconductor, Inc. All Rights Reserved. */ /* @@ -18,11 +18,13 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ +#include <asm/errno.h> #include <linux/io.h> #include <linux/clk.h> #include <linux/kernel.h> #include <linux/delay.h> -#include <asm/errno.h> + +#include <mach/hardware.h> #include <mach/ahci_sata.h> int write_phy_ctl_ack_polling(u32 data, void __iomem *mmio, @@ -140,6 +142,13 @@ int sata_init(void __iomem *addr, unsigned long timer1ms) u32 tmpdata; int iterations = 20; + /* + * Make sure that SATA PHY is enabled + * The PDDQ mode is disabled. + */ + tmpdata = readl(addr + PORT_PHY_CTL); + writel(tmpdata & (~PORT_PHY_CTL_PDDQ_LOC), addr + PORT_PHY_CTL); + /* Reset HBA */ writel(HOST_RESET, addr + HOST_CTL); |