diff options
| -rw-r--r-- | arch/x86/cpu/ivybridge/Makefile | 1 | ||||
| -rw-r--r-- | arch/x86/cpu/ivybridge/bd82x6x.c | 20 | ||||
| -rw-r--r-- | arch/x86/cpu/ivybridge/sata.c | 225 | ||||
| -rw-r--r-- | arch/x86/include/asm/arch-ivybridge/bd82x6x.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/arch-ivybridge/pch.h | 58 | ||||
| -rw-r--r-- | doc/device-tree-bindings/ata/intel-sata.txt | 26 | ||||
| -rw-r--r-- | include/fdtdec.h | 1 | ||||
| -rw-r--r-- | lib/fdtdec.c | 1 |
8 files changed, 334 insertions, 0 deletions
diff --git a/arch/x86/cpu/ivybridge/Makefile b/arch/x86/cpu/ivybridge/Makefile index 479e446..c6342cd 100644 --- a/arch/x86/cpu/ivybridge/Makefile +++ b/arch/x86/cpu/ivybridge/Makefile @@ -15,4 +15,5 @@ obj-y += microcode_intel.o obj-y += pch.o obj-y += pci.o obj-y += report_platform.o +obj-y += sata.o obj-y += sdram.o diff --git a/arch/x86/cpu/ivybridge/bd82x6x.c b/arch/x86/cpu/ivybridge/bd82x6x.c index be4db74..b54f5c7 100644 --- a/arch/x86/cpu/ivybridge/bd82x6x.c +++ b/arch/x86/cpu/ivybridge/bd82x6x.c @@ -88,18 +88,38 @@ void bd82x6x_pci_bus_enable_resources(pci_dev_t dev) int bd82x6x_init_pci_devices(void) { + const void *blob = gd->fdt_blob; struct pci_controller *hose; + int sata_node; hose = pci_bus_to_hose(0); lpc_enable(PCH_LPC_DEV); lpc_init(hose, PCH_LPC_DEV); + sata_node = fdtdec_next_compatible(blob, 0, + COMPAT_INTEL_PANTHERPOINT_AHCI); + if (sata_node < 0) { + debug("%s: Cannot find SATA node\n", __func__); + return -EINVAL; + } + bd82x6x_sata_init(PCH_SATA_DEV, blob, sata_node); return 0; } int bd82x6x_init(void) { + const void *blob = gd->fdt_blob; + int sata_node; + + sata_node = fdtdec_next_compatible(blob, 0, + COMPAT_INTEL_PANTHERPOINT_AHCI); + if (sata_node < 0) { + debug("%s: Cannot find SATA node\n", __func__); + return -EINVAL; + } + bd82x6x_pci_init(PCH_DEV); + bd82x6x_sata_enable(PCH_SATA_DEV, blob, sata_node); return 0; } diff --git a/arch/x86/cpu/ivybridge/sata.c b/arch/x86/cpu/ivybridge/sata.c new file mode 100644 index 0000000..bbcd47d --- /dev/null +++ b/arch/x86/cpu/ivybridge/sata.c @@ -0,0 +1,225 @@ +/* + * From Coreboot + * Copyright (C) 2008-2009 coresystems GmbH + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <fdtdec.h> +#include <asm/io.h> +#include <asm/pci.h> +#include <asm/arch/pch.h> +#include <asm/arch/bd82x6x.h> + +static inline u32 sir_read(pci_dev_t dev, int idx) +{ + pci_write_config32(dev, SATA_SIRI, idx); + return pci_read_config32(dev, SATA_SIRD); +} + +static inline void sir_write(pci_dev_t dev, int idx, u32 value) +{ + pci_write_config32(dev, SATA_SIRI, idx); + pci_write_config32(dev, SATA_SIRD, value); +} + +static void common_sata_init(pci_dev_t dev, unsigned int port_map) +{ + u32 reg32; + u16 reg16; + + /* 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 |= port_map; + pci_write_config16(dev, 0x92, reg16); + + /* SATA Initialization register */ + port_map &= 0xff; + pci_write_config32(dev, 0x94, ((port_map ^ 0x3f) << 24) | 0x183); +} + +void bd82x6x_sata_init(pci_dev_t dev, const void *blob, int node) +{ + unsigned int port_map, speed_support, port_tx; + struct pci_controller *hose = pci_bus_to_hose(0); + const char *mode; + u32 reg32; + u16 reg16; + + debug("SATA: Initializing...\n"); + + /* SATA configuration */ + port_map = fdtdec_get_int(blob, node, "intel,sata-port-map", 0); + speed_support = fdtdec_get_int(blob, node, + "sata_interface_speed_support", 0); + + /* Enable BARs */ + pci_write_config16(dev, PCI_COMMAND, 0x0007); + + mode = fdt_getprop(blob, node, "intel,sata-mode", NULL); + if (!mode || !strcmp(mode, "ahci")) { + u32 abar; + + 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); + + common_sata_init(dev, 0x8000 | port_map); + + /* Initialize AHCI memory-mapped space */ + abar = pci_read_bar32(hose, dev, 5); + debug("ABAR: %08X\n", abar); + /* CAP (HBA Capabilities) : enable power management */ + reg32 = readl(abar + 0x00); + reg32 |= 0x0c006000; /* set PSC+SSC+SALP+SSS */ + reg32 &= ~0x00020060; /* clear SXS+EMS+PMS */ + /* Set ISS, if available */ + if (speed_support) { + reg32 &= ~0x00f00000; + reg32 |= (speed_support & 0x03) << 20; + } + writel(reg32, abar + 0x00); + /* PI (Ports implemented) */ + writel(port_map, abar + 0x0c); + (void) readl(abar + 0x0c); /* Read back 1 */ + (void) readl(abar + 0x0c); /* Read back 2 */ + /* CAP2 (HBA Capabilities Extended)*/ + reg32 = readl(abar + 0x24); + reg32 &= ~0x00000002; + writel(reg32, abar + 0x24); + /* VSP (Vendor Specific Register */ + reg32 = readl(abar + 0xa0); + reg32 &= ~0x00000005; + writel(reg32, abar + 0xa0); + } else if (!strcmp(mode, "combined")) { + debug("SATA: Controller in combined mode\n"); + + /* No AHCI: clear AHCI base */ + pci_write_bar32(hose, dev, 5, 0x00000000); + /* And without AHCI BAR no memory decoding */ + reg16 = pci_read_config16(dev, PCI_COMMAND); + reg16 &= ~PCI_COMMAND_MEMORY; + pci_write_config16(dev, PCI_COMMAND, reg16); + + 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); + + common_sata_init(dev, port_map); + } else { + debug("SATA: Controller in plain-ide mode\n"); + + /* No AHCI: clear AHCI base */ + pci_write_bar32(hose, dev, 5, 0x00000000); + + /* And without AHCI BAR no memory decoding */ + reg16 = pci_read_config16(dev, PCI_COMMAND); + reg16 &= ~PCI_COMMAND_MEMORY; + pci_write_config16(dev, PCI_COMMAND, reg16); + + /* + * Native mode capable on both primary and secondary (0xa) + * OR'ed with enabled (0x50) = 0xf + */ + 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); + + common_sata_init(dev, port_map); + } + + /* Set Gen3 Transmitter settings if needed */ + port_tx = fdtdec_get_int(blob, node, "intel,sata-port0-gen3-tx", 0); + if (port_tx) + pch_iobp_update(SATA_IOBP_SP0G3IR, 0, port_tx); + + port_tx = fdtdec_get_int(blob, node, "intel,sata-port1-gen3-tx", 0); + if (port_tx) + pch_iobp_update(SATA_IOBP_SP1G3IR, 0, port_tx); + + /* Additional Programming Requirements */ + sir_write(dev, 0x04, 0x00001600); + sir_write(dev, 0x28, 0xa0000033); + reg32 = sir_read(dev, 0x54); + reg32 &= 0xff000000; + reg32 |= 0x5555aa; + sir_write(dev, 0x54, reg32); + sir_write(dev, 0x64, 0xcccc8484); + reg32 = sir_read(dev, 0x68); + reg32 &= 0xffff0000; + reg32 |= 0xcccc; + sir_write(dev, 0x68, reg32); + reg32 = sir_read(dev, 0x78); + reg32 &= 0x0000ffff; + reg32 |= 0x88880000; + sir_write(dev, 0x78, reg32); + sir_write(dev, 0x84, 0x001c7000); + sir_write(dev, 0x88, 0x88338822); + sir_write(dev, 0xa0, 0x001c7000); + sir_write(dev, 0xc4, 0x0c0c0c0c); + sir_write(dev, 0xc8, 0x0c0c0c0c); + sir_write(dev, 0xd4, 0x10000000); + + pch_iobp_update(0xea004001, 0x3fffffff, 0xc0000000); + pch_iobp_update(0xea00408a, 0xfffffcff, 0x00000100); +} + +void bd82x6x_sata_enable(pci_dev_t dev, const void *blob, int node) +{ + unsigned port_map; + const char *mode; + u16 map = 0; + + /* + * Set SATA controller mode early so the resource allocator can + * properly assign IO/Memory resources for the controller. + */ + mode = fdt_getprop(blob, node, "intel,sata-mode", NULL); + if (mode && !strcmp(mode, "ahci")) + map = 0x0060; + port_map = fdtdec_get_int(blob, node, "intel,sata-port-map", 0); + + map |= (port_map ^ 0x3f) << 8; + pci_write_config16(dev, 0x90, map); +} diff --git a/arch/x86/include/asm/arch-ivybridge/bd82x6x.h b/arch/x86/include/asm/arch-ivybridge/bd82x6x.h index e02520c..644755f 100644 --- a/arch/x86/include/asm/arch-ivybridge/bd82x6x.h +++ b/arch/x86/include/asm/arch-ivybridge/bd82x6x.h @@ -7,6 +7,8 @@ #ifndef _ASM_ARCH_BD82X6X_H #define _ASM_ARCH_BD82X6X_H +void bd82x6x_sata_init(pci_dev_t dev, const void *blob, int node); +void bd82x6x_sata_enable(pci_dev_t dev, const void *blob, int node); void bd82x6x_pci_init(pci_dev_t dev); int bd82x6x_init_pci_devices(void); int bd82x6x_init(void); diff --git a/arch/x86/include/asm/arch-ivybridge/pch.h b/arch/x86/include/asm/arch-ivybridge/pch.h index b3ec7c5..21df083 100644 --- a/arch/x86/include/asm/arch-ivybridge/pch.h +++ b/arch/x86/include/asm/arch-ivybridge/pch.h @@ -122,6 +122,64 @@ void pch_iobp_update(u32 address, u32 andvalue, u32 orvalue); #define LPC_GEN4_DEC 0x90 /* LPC IF Generic Decode Range 4 */ #define LPC_GENX_DEC(x) (0x84 + 4 * (x)) +/* PCI Configuration Space (D31:F1): IDE */ +#define PCH_IDE_DEV PCI_BDF(0, 0x1f, 1) +#define PCH_SATA_DEV PCI_BDF(0, 0x1f, 2) +#define PCH_SATA2_DEV PCI_BDF(0, 0x1f, 5) + +#define INTR_LN 0x3c +#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 */ + +/* SATA IOBP Registers */ +#define SATA_IOBP_SP0G3IR 0xea000151 +#define SATA_IOBP_SP1G3IR 0xea000051 + /* PCI Configuration Space (D31:F3): SMBus */ #define PCH_SMBUS_DEV PCI_BDF(0, 0x1f, 3) #define SMB_BASE 0x20 diff --git a/doc/device-tree-bindings/ata/intel-sata.txt b/doc/device-tree-bindings/ata/intel-sata.txt new file mode 100644 index 0000000..5e4da83 --- /dev/null +++ b/doc/device-tree-bindings/ata/intel-sata.txt @@ -0,0 +1,26 @@ +Intel Pantherpoint SATA Device Binding +====================================== + +The device tree node which describes the operation of the Intel Pantherpoint +SATA device is as follows: + +Required properties : +- compatible = "intel,pantherpoint-ahci" +- intel,sata-mode : string, one of: + "ahci" : Use AHCI mode (default) + "combined" : Use combined IDE + legacy mode + "plain-ide" : Use plain IDE mode +- intel,sata-port-map : Which SATA ports are enabled, bit 0=enable first port, + bit 1=enable second port, etc. +- intel,sata-port0-gen3-tx : Value for the IOBP_SP0G3IR register +- intel,sata-port1-gen3-tx : Value for the IOBP_SP1G3IR register + +Example +------- + +sata { + compatible = "intel,pantherpoint-ahci"; + intel,sata-mode = "ahci"; + intel,sata-port-map = <1>; + intel,sata-port0-gen3-tx = <0x00880a7f>; +}; diff --git a/include/fdtdec.h b/include/fdtdec.h index abfd678..0a0afce 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -120,6 +120,7 @@ enum fdt_compat_id { COMPAT_INTEL_LPC, /* Intel Low Pin Count I/F */ COMPAT_INTEL_MICROCODE, /* Intel microcode update */ COMPAT_MEMORY_SPD, /* Memory SPD information */ + COMPAT_INTEL_PANTHERPOINT_AHCI, /* Intel Pantherpoint AHCI */ COMPAT_COUNT, }; diff --git a/lib/fdtdec.c b/lib/fdtdec.c index e8775df..480442f 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -75,6 +75,7 @@ static const char * const compat_names[COMPAT_COUNT] = { COMPAT(COMPAT_INTEL_LPC, "intel,lpc"), COMPAT(INTEL_MICROCODE, "intel,microcode"), COMPAT(MEMORY_SPD, "memory-spd"), + COMPAT(INTEL_PANTHERPOINT_AHCI, "intel,pantherpoint-ahci"), }; const char *fdtdec_get_compatible(enum fdt_compat_id id) |