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| author | Richard Zhu <r65037@freescale.com> | 2013-04-16 09:39:26 +0800 |
|---|---|---|
| committer | Richard Zhu <r65037@freescale.com> | 2013-04-16 13:49:18 +0800 |
| commit | b0695b29ff142116ad5a14690bbc59d99e4b702e (patch) | |
| tree | bd2ca2222d77a5ec4d03b4b98b26da86a2460e64 /board | |
| parent | 3c73a4c87c29cfb7af4cfdc5b457892d24b89a27 (diff) | |
| download | u-boot-imx-b0695b29ff142116ad5a14690bbc59d99e4b702e.zip u-boot-imx-b0695b29ff142116ad5a14690bbc59d99e4b702e.tar.gz u-boot-imx-b0695b29ff142116ad5a14690bbc59d99e4b702e.tar.bz2 | |
ENGR00254470-1 mx6q-sd:sata device can't work properly on most boards
Revert "ENGR00241595-1 mx6q-sabresd:Enable SATA PHY PDDQ default"
This reverts commit 9cb937432d1dc8d2c31afa5194f1ef0d8bdc0392.
Reasons:
* according to SATA Power mode (in SATA protocol) PHY TX/RX/CLK is
powered down automatically according to SATA controller
power mode SATA port support Disable/Slumber/Partial/Enabled(OOB)
The SATA PHY PDDQ mode is one-shot and recommeded to be used for test,
SATA would not work properly if the PHY PDDQ mode is enabled in U-boot.
Signed-off-by: Richard Zhu <r65037@freescale.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/mx6q_sabresd/mx6q_sabresd.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/board/freescale/mx6q_sabresd/mx6q_sabresd.c b/board/freescale/mx6q_sabresd/mx6q_sabresd.c index c896c93..32f23ac 100644 --- a/board/freescale/mx6q_sabresd/mx6q_sabresd.c +++ b/board/freescale/mx6q_sabresd/mx6q_sabresd.c @@ -238,8 +238,6 @@ void board_mmu_init(void) #define ANATOP_PLL_PWDN_MASK 0x00001000 #define ANATOP_PLL_HOLD_RING_OFF_MASK 0x00000800 #define ANATOP_SATA_CLK_ENABLE_MASK 0x00100000 -#define PORT_PHY_CTL 0x178 -#define PORT_PHY_CTL_PDDQ_LOC 0x100000 #ifdef CONFIG_DWC_AHSATA /* Staggered Spin-up */ @@ -254,11 +252,6 @@ int sata_initialize(void) u32 iterations = 1000000; if (sata_curr_device == -1) { - /* Make sure that the PDDQ mode is disabled. */ - reg = readl(SATA_ARB_BASE_ADDR + PORT_PHY_CTL); - writel(reg & (~PORT_PHY_CTL_PDDQ_LOC), - SATA_ARB_BASE_ADDR + PORT_PHY_CTL); - /* Reset HBA */ writel(HOST_RESET, SATA_ARB_BASE_ADDR + HOST_CTL); @@ -352,17 +345,6 @@ static int setup_sata(void) reg |= 0x59124c6; writel(reg, IOMUXC_BASE_ADDR + 0x34); - /* FIXME */ - /* - * It needs to wait SATA PHY initialize completed, otherwise write the - * PORT_PHY_CTL will fail, then can't enable PDDQ which let PHY entry LPM - * Currently set it as 1ms. - */ - __udelay(1000); - /* Enable PDDQ mode in default */ - writel(readl(SATA_ARB_BASE_ADDR + PORT_PHY_CTL) | PORT_PHY_CTL_PDDQ_LOC, - SATA_ARB_BASE_ADDR + PORT_PHY_CTL); - return 0; } @@ -1982,10 +1964,6 @@ int checkboard(void) break; } - if (cpu_is_mx6q()) - printf("SATA PDDQ: %s\n", ((readl(SATA_ARB_BASE_ADDR - + PORT_PHY_CTL) - & PORT_PHY_CTL_PDDQ_LOC)>>20) ? "enabled" : "disabled"); #ifdef CONFIG_SECURE_BOOT if (check_hab_enable() == 1) get_hab_status(); |