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MIPS: Netlogic: Fix for SATA PHY init 

Update to the SATA PHY initialization. This is needed for SATA detection
to succeed in all configurations.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8886/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ganesan Ramalingam 2015-01-07 16:58:26 +05:30 committed by Ralf Baechle
parent b083518c52
commit 872cd4c2c6
1 changed files with 13 additions and 0 deletions
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13
arch/mips/netlogic/xlp/ahci-init-xlp2.c
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@ -203,6 +203,7 @@ static u8 read_phy_reg(u64 regbase, u32 addr, u32 physel)
static void config_sata_phy(u64 regbase)
{
u32 port, i, reg;
u8 val;
for (port = 0; port < 2; port++) {
for (i = 0, reg = RXCDRCALFOSC0; reg <= CALDUTY; reg++, i++)
@ -210,6 +211,18 @@ static void config_sata_phy(u64 regbase)
for (i = 0, reg = RXDPIF; reg <= PPMDRIFTMAX_HI; reg++, i++)
write_phy_reg(regbase, reg, port, sata_phy_config2[i]);
/* Fix for PHY link up failures at lower temperatures */
write_phy_reg(regbase, 0x800F, port, 0x1f);
val = read_phy_reg(regbase, 0x0029, port);
write_phy_reg(regbase, 0x0029, port, val | (0x7 << 1));
val = read_phy_reg(regbase, 0x0056, port);
write_phy_reg(regbase, 0x0056, port, val & ~(1 << 3));
val = read_phy_reg(regbase, 0x0018, port);
write_phy_reg(regbase, 0x0018, port, val & ~(0x7 << 0));
}
}