aboutsummaryrefslogtreecommitdiff
path: root/src/southbridge/intel/lynxpoint/sata.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/southbridge/intel/lynxpoint/sata.c')
-rw-r--r--src/southbridge/intel/lynxpoint/sata.c252
1 files changed, 83 insertions, 169 deletions
diff --git a/src/southbridge/intel/lynxpoint/sata.c b/src/southbridge/intel/lynxpoint/sata.c
index e1a2fa5a57..c9c7f2cadb 100644
--- a/src/southbridge/intel/lynxpoint/sata.c
+++ b/src/southbridge/intel/lynxpoint/sata.c
@@ -29,6 +29,9 @@ static void sata_init(struct device *dev)
{
u32 reg32;
u16 reg16;
+
+ u32 *abar;
+
/* Get the chip configuration */
config_t *config = dev->chip_info;
@@ -44,170 +47,87 @@ static void sata_init(struct device *dev)
/* Enable memory space decoding for ABAR */
pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
- if (config->ide_legacy_combined) {
- printk(BIOS_DEBUG, "SATA: Controller in combined mode.\n");
-
- /* No AHCI: clear AHCI base */
- pci_write_config32(dev, 0x24, 0);
-
- /* And without AHCI BAR no memory decoding */
- pci_and_config16(dev, PCI_COMMAND, ~PCI_COMMAND_MEMORY);
-
- pci_write_config8(dev, 0x09, 0x80);
-
- /* Set timings */
- pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE |
- IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS);
- pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE |
- IDE_ISP_3_CLOCKS | IDE_RCT_1_CLOCKS |
- IDE_PPE0 | IDE_IE0 | IDE_TIME0);
-
- /* Sync DMA */
- pci_write_config16(dev, IDE_SDMA_CNT, IDE_SSDE0);
- pci_write_config16(dev, IDE_SDMA_TIM, 0x0200);
-
- /* Set IDE I/O Configuration */
- reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0;
- pci_write_config32(dev, IDE_CONFIG, reg32);
-
- /* Port enable */
- reg16 = pci_read_config16(dev, 0x92);
- reg16 &= ~0x3f;
- reg16 |= config->sata_port_map;
- pci_write_config16(dev, 0x92, reg16);
-
- /* SATA Initialization register */
- pci_write_config32(dev, 0x94, ((config->sata_port_map ^ 0x3f) << 24) | 0x183);
- } else if (config->sata_ahci) {
- u32 *abar;
-
- printk(BIOS_DEBUG, "SATA: Controller in AHCI mode.\n");
-
- /* Set Interrupt Line */
- /* Interrupt Pin is set by D31IP.PIP */
- pci_write_config8(dev, INTR_LN, 0x0a);
-
- /* 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);
-
- /* for AHCI, Port Enable is managed in memory mapped space */
- reg16 = pci_read_config16(dev, 0x92);
- reg16 &= ~0x3f;
- reg16 |= 0x8000 | config->sata_port_map;
- pci_write_config16(dev, 0x92, reg16);
- udelay(2);
-
- /* Setup register 98h */
- reg32 = pci_read_config16(dev, 0x98);
- reg32 |= 1 << 19; /* BWG step 6 */
- reg32 |= 1 << 22; /* BWG step 5 */
- reg32 &= ~(0x3f << 7);
- reg32 |= 0x04 << 7; /* BWG step 7 */
- reg32 |= 1 << 20; /* BWG step 8 */
- reg32 &= ~(0x03 << 5);
- reg32 |= 1 << 5; /* BWG step 9 */
- reg32 |= 1 << 18; /* BWG step 10 */
- reg32 |= 1 << 29; /* BWG step 11 */
- if (pch_is_lp()) {
- reg32 &= ~((1 << 31) | (1 << 30));
- reg32 |= 1 << 23;
- reg32 |= 1 << 24; /* Disable listen mode (hotplug) */
- }
- pci_write_config32(dev, 0x98, reg32);
-
- /* Setup register 9Ch: Disable alternate ID and BWG step 12 */
- pci_write_config16(dev, 0x9c, 1 << 5);
-
- /* SATA Initialization register */
- reg32 = 0x183;
- reg32 |= (config->sata_port_map ^ 0x3f) << 24;
- reg32 |= (config->sata_devslp_mux & 1) << 15;
- pci_write_config32(dev, 0x94, reg32);
-
- /* Initialize AHCI memory-mapped space */
- abar = (u32 *)pci_read_config32(dev, PCI_BASE_ADDRESS_5);
- printk(BIOS_DEBUG, "ABAR: %p\n", abar);
- /* CAP (HBA Capabilities) : enable power management */
- reg32 = read32(abar + 0x00);
- reg32 |= 0x0c006000; // set PSC+SSC+SALP+SSS
- reg32 &= ~0x00020060; // clear SXS+EMS+PMS
- if (pch_is_lp())
- reg32 |= (1 << 18); // SAM: SATA AHCI MODE ONLY
- write32(abar + 0x00, reg32);
- /* PI (Ports implemented) */
- write32(abar + 0x03, config->sata_port_map);
- (void)read32(abar + 0x03); /* Read back 1 */
- (void)read32(abar + 0x03); /* Read back 2 */
- /* CAP2 (HBA Capabilities Extended)*/
- reg32 = read32(abar + 0x09);
- /* Enable DEVSLP */
- if (pch_is_lp()) {
- if (config->sata_devslp_disable)
- reg32 &= ~(1 << 3);
- else
- reg32 |= (1 << 5)|(1 << 4)|(1 << 3)|(1 << 2);
- } else {
- reg32 &= ~0x00000002;
- }
- write32(abar + 0x09, reg32);
+ printk(BIOS_DEBUG, "SATA: Controller in AHCI mode.\n");
+
+ /* Set Interrupt Line */
+ /* Interrupt Pin is set by D31IP.PIP */
+ pci_write_config8(dev, INTR_LN, 0x0a);
+
+ /* 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);
+
+ /* for AHCI, Port Enable is managed in memory mapped space */
+ reg16 = pci_read_config16(dev, 0x92);
+ reg16 &= ~0x3f;
+ reg16 |= 0x8000 | config->sata_port_map;
+ pci_write_config16(dev, 0x92, reg16);
+ udelay(2);
+
+ /* Setup register 98h */
+ reg32 = pci_read_config16(dev, 0x98);
+ reg32 |= 1 << 19; /* BWG step 6 */
+ reg32 |= 1 << 22; /* BWG step 5 */
+ reg32 &= ~(0x3f << 7);
+ reg32 |= 0x04 << 7; /* BWG step 7 */
+ reg32 |= 1 << 20; /* BWG step 8 */
+ reg32 &= ~(0x03 << 5);
+ reg32 |= 1 << 5; /* BWG step 9 */
+ reg32 |= 1 << 18; /* BWG step 10 */
+ reg32 |= 1 << 29; /* BWG step 11 */
+ if (pch_is_lp()) {
+ reg32 &= ~((1 << 31) | (1 << 30));
+ reg32 |= 1 << 23;
+ reg32 |= 1 << 24; /* Disable listen mode (hotplug) */
+ }
+ pci_write_config32(dev, 0x98, reg32);
+
+ /* Setup register 9Ch: Disable alternate ID and BWG step 12 */
+ pci_write_config16(dev, 0x9c, 1 << 5);
+
+ /* SATA Initialization register */
+ reg32 = 0x183;
+ reg32 |= (config->sata_port_map ^ 0x3f) << 24;
+ reg32 |= (config->sata_devslp_mux & 1) << 15;
+ pci_write_config32(dev, 0x94, reg32);
+
+ /* Initialize AHCI memory-mapped space */
+ abar = (u32 *)pci_read_config32(dev, PCI_BASE_ADDRESS_5);
+ printk(BIOS_DEBUG, "ABAR: %p\n", abar);
+ /* CAP (HBA Capabilities) : enable power management */
+ reg32 = read32(abar + 0x00);
+ reg32 |= 0x0c006000; // set PSC+SSC+SALP+SSS
+ reg32 &= ~0x00020060; // clear SXS+EMS+PMS
+ if (pch_is_lp())
+ reg32 |= (1 << 18); // SAM: SATA AHCI MODE ONLY
+ write32(abar + 0x00, reg32);
+ /* PI (Ports implemented) */
+ write32(abar + 0x03, config->sata_port_map);
+ (void)read32(abar + 0x03); /* Read back 1 */
+ (void)read32(abar + 0x03); /* Read back 2 */
+ /* CAP2 (HBA Capabilities Extended)*/
+ reg32 = read32(abar + 0x09);
+ /* Enable DEVSLP */
+ if (pch_is_lp()) {
+ if (config->sata_devslp_disable)
+ reg32 &= ~(1 << 3);
+ else
+ reg32 |= (1 << 5)|(1 << 4)|(1 << 3)|(1 << 2);
} else {
- printk(BIOS_DEBUG, "SATA: Controller in plain mode.\n");
-
- /* No AHCI: clear AHCI base */
- pci_write_config32(dev, 0x24, 0);
-
- /* And without AHCI BAR no memory decoding */
- pci_and_config16(dev, PCI_COMMAND, ~PCI_COMMAND_MEMORY);
-
- /*
- * Native mode capable on both primary and secondary (0xa)
- * or'ed with enabled (0x50) = 0xf
- *
- * FIXME: Does not match the code.
- */
- pci_write_config8(dev, 0x09, 0x8f);
-
- /* Set Interrupt Line */
- /* Interrupt Pin is set by D31IP.PIP */
- pci_write_config8(dev, INTR_LN, 0xff);
-
- /* 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_SITRE | IDE_ISP_3_CLOCKS |
- IDE_RCT_1_CLOCKS | IDE_IE0 | IDE_TIME0);
-
- /* Sync DMA */
- pci_write_config16(dev, IDE_SDMA_CNT, IDE_SSDE0 | IDE_PSDE0);
- pci_write_config16(dev, IDE_SDMA_TIM, 0x0201);
-
- /* Set IDE I/O Configuration */
- reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0;
- pci_write_config32(dev, IDE_CONFIG, reg32);
-
- /* Port enable */
- reg16 = pci_read_config16(dev, 0x92);
- reg16 &= ~0x3f;
- reg16 |= config->sata_port_map;
- pci_write_config16(dev, 0x92, reg16);
-
- /* SATA Initialization register */
- pci_write_config32(dev, 0x94, ((config->sata_port_map ^ 0x3f) << 24) | 0x183);
+ reg32 &= ~0x00000002;
}
+ write32(abar + 0x09, reg32);
/* Set Gen3 Transmitter settings if needed */
if (config->sata_port0_gen3_tx)
@@ -290,7 +210,6 @@ static void sata_enable(struct device *dev)
{
/* Get the chip configuration */
config_t *config = dev->chip_info;
- u16 map = 0;
if (!config)
return;
@@ -299,12 +218,7 @@ static void sata_enable(struct device *dev)
* Set SATA controller mode early so the resource allocator can
* properly assign IO/Memory resources for the controller.
*/
- if (config->sata_ahci)
- map = 0x0060;
-
- map |= (config->sata_port_map ^ 0x3f) << 8;
-
- pci_write_config16(dev, 0x90, map);
+ pci_write_config16(dev, 0x90, 0x0060 | (config->sata_port_map ^ 0x3f) << 8);
}
static struct device_operations sata_ops = {
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-23 17:35:26 +0000