sb/intel/bd82x6x: Drop invalid SATA registers

Code was copy-pasted from older chips and has no effect on bd82x6x.

Change-Id: I909158906c4dc8b6f0a16558c61f095ef425a776
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47099
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/southbridge/intel/bd82x6x/pch.h b/src/southbridge/intel/bd82x6x/pch.h
index eff0858..151627d 100644
--- a/src/southbridge/intel/bd82x6x/pch.h
+++ b/src/southbridge/intel/bd82x6x/pch.h
@@ -159,48 +159,8 @@
 #define PCH_SATA2_DEV		PCI_DEV(0, 0x1f, 5)
 #define IDE_TIM_PRI		0x40	/* IDE timings, primary */
 #define   IDE_DECODE_ENABLE	(1 << 15)
-#define   IDE_SITRE		(1 << 14)
-#define   IDE_ISP_5_CLOCKS	(0 << 12)
-#define   IDE_ISP_4_CLOCKS	(1 << 12)
-#define   IDE_ISP_3_CLOCKS	(2 << 12)
-#define   IDE_RCT_4_CLOCKS	(0 <<  8)
-#define   IDE_RCT_3_CLOCKS	(1 <<  8)
-#define   IDE_RCT_2_CLOCKS	(2 <<  8)
-#define   IDE_RCT_1_CLOCKS	(3 <<  8)
-#define   IDE_DTE1		(1 <<  7)
-#define   IDE_PPE1		(1 <<  6)
-#define   IDE_IE1		(1 <<  5)
-#define   IDE_TIME1		(1 <<  4)
-#define   IDE_DTE0		(1 <<  3)
-#define   IDE_PPE0		(1 <<  2)
-#define   IDE_IE0		(1 <<  1)
-#define   IDE_TIME0		(1 <<  0)
 #define IDE_TIM_SEC		0x42	/* IDE timings, secondary */
 
-#define IDE_SDMA_CNT		0x48	/* Synchronous DMA control */
-#define   IDE_SSDE1		(1 <<  3)
-#define   IDE_SSDE0		(1 <<  2)
-#define   IDE_PSDE1		(1 <<  1)
-#define   IDE_PSDE0		(1 <<  0)
-
-#define IDE_SDMA_TIM		0x4a
-
-#define IDE_CONFIG		0x54	/* IDE I/O Configuration Register */
-#define   SIG_MODE_SEC_NORMAL	(0 << 18)
-#define   SIG_MODE_SEC_TRISTATE	(1 << 18)
-#define   SIG_MODE_SEC_DRIVELOW	(2 << 18)
-#define   SIG_MODE_PRI_NORMAL	(0 << 16)
-#define   SIG_MODE_PRI_TRISTATE	(1 << 16)
-#define   SIG_MODE_PRI_DRIVELOW	(2 << 16)
-#define   FAST_SCB1		(1 << 15)
-#define   FAST_SCB0		(1 << 14)
-#define   FAST_PCB1		(1 << 13)
-#define   FAST_PCB0		(1 << 12)
-#define   SCB1			(1 <<  3)
-#define   SCB0			(1 <<  2)
-#define   PCB1			(1 <<  1)
-#define   PCB0			(1 <<  0)
-
 #define SATA_SIRI		0xa0 /* SATA Indexed Register Index */
 #define SATA_SIRD		0xa4 /* SATA Indexed Register Data */
 #define SATA_SP			0xd0 /* Scratchpad */
diff --git a/src/southbridge/intel/bd82x6x/sata.c b/src/southbridge/intel/bd82x6x/sata.c
index de1be62..ba402ed 100644
--- a/src/southbridge/intel/bd82x6x/sata.c
+++ b/src/southbridge/intel/bd82x6x/sata.c
@@ -117,20 +117,8 @@
 
 		printk(BIOS_DEBUG, "SATA: Controller in AHCI mode.\n");
 
-		/* Set timings */
-		pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE |
-				IDE_ISP_3_CLOCKS | IDE_RCT_1_CLOCKS |
-				IDE_PPE0 | IDE_IE0 | IDE_TIME0);
-		pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE |
-				IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS);
-
-		/* Sync DMA */
-		pci_write_config16(dev, IDE_SDMA_CNT, IDE_PSDE0);
-		pci_write_config16(dev, IDE_SDMA_TIM, 0x0001);
-
-		/* Set IDE I/O Configuration */
-		reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0;
-		pci_write_config32(dev, IDE_CONFIG, reg32);
+		pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE);
+		pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE);
 
 		/* for AHCI, Port Enable is managed in memory mapped space */
 		reg16 = pci_read_config16(dev, 0x92);