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siemens/mc_apl3: Remove the correction of the Tx signal for SATA 

For this mainboard the correction of transmit voltage swing from SATA
interface is not necessary.

Change-Id: I900d0d44b88585c223182d85c78cf3ff1e3e9159
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/29527
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
This commit is contained in:
Mario Scheithauer 2018-11-07 08:36:14 +01:00 committed by Werner Zeh
parent 98689df18f
commit bcbcecd38f
1 changed files with 0 additions and 8 deletions
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8
src/mainboard/siemens/mc_apl1/variants/mc_apl3/mainboard.c
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@ -52,14 +52,6 @@ void variant_mainboard_final(void)
* offset 0x341C bit [3:0].
*/
pcr_or32(PID_LPC, PCR_LPC_PRC, (PCR_LPC_CCE_EN | PCR_LPC_PCE_EN));
/*
* Correct the SATA transmit signal via the High Speed I/O Transmit
* Control Register 3.
* Bit [23:16] set the output voltage swing for TX line.
* The value 0x4a sets the swing level to 0.58 V.
*/
pcr_rmw32(PID_MODPHY, TX_DWORD3, (0x00 << 16), (0x4a << 16));
}
static void wait_for_legacy_dev(void *unused)