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Diffstat (limited to 'src/soc/intel/braswell/sata.c')
-rw-r--r--src/soc/intel/braswell/sata.c188
1 files changed, 6 insertions, 182 deletions
diff --git a/src/soc/intel/braswell/sata.c b/src/soc/intel/braswell/sata.c
index 6906b7f9cf..00b651e0ef 100644
--- a/src/soc/intel/braswell/sata.c
+++ b/src/soc/intel/braswell/sata.c
@@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2015 Intel Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -29,192 +30,17 @@
#include "chip.h"
-typedef struct soc_intel_baytrail_config config_t;
-
-static inline void sir_write(struct device *dev, int idx, u32 value)
-{
- pci_write_config32(dev, SATA_SIRI, idx);
- pci_write_config32(dev, SATA_SIRD, value);
-}
+typedef struct soc_intel_braswell_config config_t;
static void sata_init(struct device *dev)
{
- config_t *config = dev->chip_info;
- u32 reg32;
- u16 reg16;
- u8 reg8;
-
- printk(BIOS_DEBUG, "SATA: Initializing...\n");
-
- if (config == NULL) {
- printk(BIOS_ERR, "SATA: ERROR: Device not in devicetree.cb!\n");
- return;
- }
-
- if (!config->sata_ahci) {
- /* Set legacy or native decoding mode */
- if (config->ide_legacy_combined) {
- reg8 = pci_read_config8(dev, 0x09);
- reg8 &= ~0x5;
- pci_write_config8(dev, 0x09, reg8);
- } else {
- reg8 = pci_read_config8(dev, 0x09);
- reg8 |= 0x5;
- pci_write_config8(dev, 0x09, reg8);
- }
-
- /* Set capabilities pointer */
- pci_write_config8(dev, 0x34, 0x70);
- reg16 = pci_read_config16(dev, 0x70);
- reg16 &= ~0xFF00;
- pci_write_config16(dev, 0x70, reg16);
- }
-
- /* Primary timing - decode enable */
- reg16 = pci_read_config16(dev, 0x40);
- reg16 |= 1 << 15;
- pci_write_config16(dev, 0x40, reg16);
-
- /* Secondary timing - decode enable */
- reg16 = pci_read_config16(dev, 0x42);
- reg16 |= 1 << 15;
- pci_write_config16(dev, 0x42, reg16);
-
- /* Port mapping enables */
- reg16 = pci_read_config16(dev, 0x90);
- reg16 |= (config->sata_port_map ^ 0x3) << 8;
- pci_write_config16(dev, 0x90, reg16);
-
- /* Port control enables */
- reg16 = pci_read_config16(dev, 0x92);
- reg16 &= ~0x003f;
- reg16 |= config->sata_port_map;
- pci_write_config16(dev, 0x92, reg16);
-
- if (config->sata_ahci) {
- u8 *abar = (u8 *)pci_read_config32(dev, PCI_BASE_ADDRESS_5);
-
- /* Enable CR memory space decoding */
- reg16 = pci_read_config16(dev, 0x04);
- reg16 |= 0x2;
- pci_write_config16(dev, 0x04, reg16);
-
- /* Set capability register */
- reg32 = read32(abar + 0x00);
- reg32 |= 0x0c046000; // set PSC+SSC+SALP+SSS+SAM
- reg32 &= ~0x00f20060; // clear SXS+EMS+PMS+gen bits
- reg32 |= (0x3 << 20); // Gen3 SATA
- write32(abar + 0x00, reg32);
-
- /* Ports enabled */
- reg32 = read32(abar + 0x0c);
- reg32 &= (u32)(~0x3f);
- reg32 |= config->sata_port_map;
- write32(abar + 0xc, reg32);
- /* Two extra reads to latch */
- read32(abar + 0x0c);
- read32(abar + 0x0c);
-
- /* Set cap2 - Support devslp */
- reg32 = (1 << 5) | (1 << 4) | (1 << 3);
- write32(abar + 0x24, reg32);
-
- /* Set PxCMD registers */
- reg32 = read32(abar + 0x118);
- reg32 &= ~((1 << 27) | (1 << 26) | (1 << 22) | (1 << 21) |
- (1 << 19) | (1 << 18) | (1 << 1));
- reg32 |= 2;
- write32(abar + 0x118, reg32);
-
- reg32 = read32(abar + 0x198);
- reg32 &= ~((1 << 27) | (1 << 26) | (1 << 22) | (1 << 21) |
- (1 << 19) | (1 << 18) | (1 << 1));
- reg32 |= 2;
- write32(abar + 0x198, reg32);
-
- /* Clear reset features */
- write32(abar + 0xc8, 0);
-
- /* Enable interrupts */
- reg8 = read8(abar + 0x04);
- reg8 |= 0x02;
- write8(abar + 0x04, reg8);
-
- } else {
- /* TODO(shawnn): Configure IDE SATA speed regs */
- }
-
- /* 1.4 us delay after configuring port / enable bits */
- udelay(2);
-
- /* Enable clock for ports */
- reg32 = pci_read_config32(dev, 0x94);
- reg32 |= 0x3f << 24;
- pci_write_config32(dev, 0x94, reg32);
- reg32 &= (config->sata_port_map ^ 0x3) << 24;
- pci_write_config32(dev, 0x94, reg32);
-
- /* Lock SataGc register */
- reg32 = (0x1 << 31) | (0x7 << 12);
- pci_write_config32(dev, 0x98, reg32);
+ printk(BIOS_SPEW, "%s/%s ( %s )\n",
+ __FILE__, __func__, dev_name(dev));
}
static void sata_enable(device_t dev)
{
- config_t *config = dev->chip_info;
- u8 reg8;
- u16 reg16;
- u32 reg32;
-
southcluster_enable_dev(dev);
- if (!config)
- return;
-
- /* Port mapping -- mask off SPD + SMS + SC bits, then re-set */
- reg16 = pci_read_config16(dev, 0x90);
- reg16 &= ~0x03e0;
- reg16 |= (config->sata_port_map ^ 0x3) << 8;
- if(config->sata_ahci)
- reg16 |= 0x60;
- pci_write_config16(dev, 0x90, reg16);
-
- /* Set reg 0x94 before starting configuration */
- reg32 = pci_read_config32(dev, 0x94);
- reg32 &= (u32)(~0x1ff);
- reg32 |= 0x183;
- pci_write_config32(dev, 0x94, reg32);
-
- /* Set ORM bit */
- reg16 = pci_read_config16(dev, 0x92);
- reg16 |= (1 << 15);
- pci_write_config16(dev, 0x92, reg16);
-
- /* R_PCH_SATA_TM2 - Undocumented in EDS, set according to ref. code */
- reg32 = pci_read_config32(dev, 0x98);
- reg32 &= (u32)~(0x1f80 | (1 << 6) | (1 << 5));
- reg32 |= (1 << 29) | (1 << 25) | (1 << 23) | (1 << 22) |
- (1 << 20) | (1 << 19) | (1 << 18) | (1 << 9) | (1 << 5);
- pci_write_config32(dev, 0x98, reg32);
-
- /* CMD reg - set bus master enable (BME) */
- reg8 = pci_read_config8(dev, 0x04);
- reg8 |= (1 << 2);
- pci_write_config8(dev, 0x04, reg8);
-
- /* "Test mode registers" */
- sir_write(dev, 0x70, 0x00288301);
- sir_write(dev, 0x54, 0x00000300);
- sir_write(dev, 0x58, 0x50000000);
- /* "OOB Detection Margin */
- sir_write(dev, 0x6c, 0x130C0603);
- /* "Gasket Control" */
- sir_write(dev, 0xf4, 0);
-
- /* PCS - Enable requested SATA ports */
- reg8 = pci_read_config8(dev, 0x92);
- reg8 &= ~0x03;
- reg8 |= config->sata_port_map;
- pci_write_config8(dev, 0x92, reg8);
}
static struct device_operations sata_ops = {
@@ -223,17 +49,15 @@ static struct device_operations sata_ops = {
.enable_resources = pci_dev_enable_resources,
.init = sata_init,
.enable = sata_enable,
- .scan_bus = NULL,
.ops_pci = &soc_pci_ops,
};
static const unsigned short pci_device_ids[] = {
- IDE1_DEVID, IDE2_DEVID, /* IDE */
- AHCI1_DEVID, AHCI2_DEVID, /* AHCI */
+ AHCI1_DEVID, /* AHCI */
0,
};
-static const struct pci_driver baytrail_sata __pci_driver = {
+static const struct pci_driver soc_sata __pci_driver = {
.ops = &sata_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.devices = pci_device_ids,
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-17 05:56:38 +0000