diff options
27 files changed, 569 insertions, 38 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index f07567c..a995e32 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -358,6 +358,15 @@ config GENERATE_ACPI_TABLE by the operating system. It defines platform-independent interfaces for configuration and power management monitoring. +config QEMU_ACPI_TABLE + bool "Load ACPI table from QEMU fw_cfg interface" + depends on GENERATE_ACPI_TABLE && QEMU + default y + help + By default, U-Boot generates its own ACPI tables. This option, if + enabled, disables U-Boot's version and loads ACPI tables generated + by QEMU. + config GENERATE_SMBIOS_TABLE bool "Generate an SMBIOS (System Management BIOS) table" default y diff --git a/arch/x86/cpu/baytrail/early_uart.c b/arch/x86/cpu/baytrail/early_uart.c index b64a3a9..471d592 100644 --- a/arch/x86/cpu/baytrail/early_uart.c +++ b/arch/x86/cpu/baytrail/early_uart.c @@ -59,11 +59,15 @@ static void x86_pci_write_config32(int dev, unsigned int where, u32 value) } /* This can be called after memory-mapped PCI is working */ -int setup_early_uart(void) +int setup_internal_uart(int enable) { - /* Enable the legacy UART hardware. */ + /* Enable or disable the legacy UART hardware */ x86_pci_write_config32(PCI_DEV_CONFIG(0, LPC_DEV, LPC_FUNC), UART_CONT, - 1); + enable); + + /* All done for the disable part, so just return */ + if (!enable) + return 0; /* * Set up the pads to the UART function. This allows the signals to diff --git a/arch/x86/cpu/qemu/Kconfig b/arch/x86/cpu/qemu/Kconfig index 4f98621..6808c9a 100644 --- a/arch/x86/cpu/qemu/Kconfig +++ b/arch/x86/cpu/qemu/Kconfig @@ -17,4 +17,11 @@ config SYS_CAR_SIZE hex default 0x10000 +config ACPI_PM1_BASE + hex + default 0xe400 + help + ACPI Power Managment 1 (PM1) i/o-mapped base address. + This device is defined in ACPI specification, with 16 bytes in size. + endif diff --git a/arch/x86/cpu/qemu/Makefile b/arch/x86/cpu/qemu/Makefile index 176ea54..801413a 100644 --- a/arch/x86/cpu/qemu/Makefile +++ b/arch/x86/cpu/qemu/Makefile @@ -8,4 +8,6 @@ ifndef CONFIG_EFI_STUB obj-y += car.o dram.o endif obj-y += cpu.o fw_cfg.o qemu.o +ifndef CONFIG_QEMU_ACPI_TABLE obj-$(CONFIG_GENERATE_ACPI_TABLE) += acpi.o dsdt.o +endif diff --git a/arch/x86/cpu/qemu/fw_cfg.c b/arch/x86/cpu/qemu/fw_cfg.c index 0599214..5ea7a6e 100644 --- a/arch/x86/cpu/qemu/fw_cfg.c +++ b/arch/x86/cpu/qemu/fw_cfg.c @@ -10,10 +10,16 @@ #include <malloc.h> #include <asm/io.h> #include <asm/fw_cfg.h> +#include <asm/tables.h> +#include <asm/e820.h> +#include <linux/list.h> +#include <memalign.h> static bool fwcfg_present; static bool fwcfg_dma_present; +static LIST_HEAD(fw_list); + /* Read configuration item using fw_cfg PIO interface */ static void qemu_fwcfg_read_entry_pio(uint16_t entry, uint32_t size, void *address) @@ -162,29 +168,311 @@ static int qemu_fwcfg_setup_kernel(void *load_addr, void *initrd_addr) return 0; } -static int qemu_fwcfg_list_firmware(void) +static int qemu_fwcfg_read_firmware_list(void) { int i; uint32_t count; - struct fw_cfg_files *files; + struct fw_file *file; + struct list_head *entry; + + /* don't read it twice */ + if (!list_empty(&fw_list)) + return 0; qemu_fwcfg_read_entry(FW_CFG_FILE_DIR, 4, &count); if (!count) return 0; count = be32_to_cpu(count); - files = malloc(count * sizeof(struct fw_cfg_file)); - if (!files) - return -ENOMEM; - - files->count = count; - qemu_fwcfg_read_entry(FW_CFG_INVALID, - count * sizeof(struct fw_cfg_file), - files->files); - - for (i = 0; i < files->count; i++) - printf("%-56s\n", files->files[i].name); - free(files); + for (i = 0; i < count; i++) { + file = malloc(sizeof(*file)); + if (!file) { + printf("error: allocating resource\n"); + goto err; + } + qemu_fwcfg_read_entry(FW_CFG_INVALID, + sizeof(struct fw_cfg_file), &file->cfg); + file->addr = 0; + list_add_tail(&file->list, &fw_list); + } + + return 0; + +err: + list_for_each(entry, &fw_list) { + file = list_entry(entry, struct fw_file, list); + free(file); + } + + return -ENOMEM; +} + +#ifdef CONFIG_QEMU_ACPI_TABLE +static struct fw_file *qemu_fwcfg_find_file(const char *name) +{ + struct list_head *entry; + struct fw_file *file; + + list_for_each(entry, &fw_list) { + file = list_entry(entry, struct fw_file, list); + if (!strcmp(file->cfg.name, name)) + return file; + } + + return NULL; +} + +/* + * This function allocates memory for ACPI tables + * + * @entry : BIOS linker command entry which tells where to allocate memory + * (either high memory or low memory) + * @addr : The address that should be used for low memory allcation. If the + * memory allocation request is 'ZONE_HIGH' then this parameter will + * be ignored. + * @return: 0 on success, or negative value on failure + */ +static int bios_linker_allocate(struct bios_linker_entry *entry, + unsigned long *addr) +{ + uint32_t size, align; + struct fw_file *file; + unsigned long aligned_addr; + + align = le32_to_cpu(entry->alloc.align); + /* align must be power of 2 */ + if (align & (align - 1)) { + printf("error: wrong alignment %u\n", align); + return -EINVAL; + } + + file = qemu_fwcfg_find_file(entry->alloc.file); + if (!file) { + printf("error: can't find file %s\n", entry->alloc.file); + return -ENOENT; + } + + size = be32_to_cpu(file->cfg.size); + + /* + * ZONE_HIGH means we need to allocate from high memory, since + * malloc space is already at the end of RAM, so we directly use it. + * If allocation zone is ZONE_FSEG, then we use the 'addr' passed + * in which is low memory + */ + if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH) { + aligned_addr = (unsigned long)memalign(align, size); + if (!aligned_addr) { + printf("error: allocating resource\n"); + return -ENOMEM; + } + } else if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) { + aligned_addr = ALIGN(*addr, align); + } else { + printf("error: invalid allocation zone\n"); + return -EINVAL; + } + + debug("bios_linker_allocate: allocate file %s, size %u, zone %d, align %u, addr 0x%lx\n", + file->cfg.name, size, entry->alloc.zone, align, aligned_addr); + + qemu_fwcfg_read_entry(be16_to_cpu(file->cfg.select), + size, (void *)aligned_addr); + file->addr = aligned_addr; + + /* adjust address for low memory allocation */ + if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) + *addr = (aligned_addr + size); + + return 0; +} + +/* + * This function patches ACPI tables previously loaded + * by bios_linker_allocate() + * + * @entry : BIOS linker command entry which tells how to patch + * ACPI tables + * @return: 0 on success, or negative value on failure + */ +static int bios_linker_add_pointer(struct bios_linker_entry *entry) +{ + struct fw_file *dest, *src; + uint32_t offset = le32_to_cpu(entry->pointer.offset); + uint64_t pointer = 0; + + dest = qemu_fwcfg_find_file(entry->pointer.dest_file); + if (!dest || !dest->addr) + return -ENOENT; + src = qemu_fwcfg_find_file(entry->pointer.src_file); + if (!src || !src->addr) + return -ENOENT; + + debug("bios_linker_add_pointer: dest->addr 0x%lx, src->addr 0x%lx, offset 0x%x size %u, 0x%llx\n", + dest->addr, src->addr, offset, entry->pointer.size, pointer); + + memcpy(&pointer, (char *)dest->addr + offset, entry->pointer.size); + pointer = le64_to_cpu(pointer); + pointer += (unsigned long)src->addr; + pointer = cpu_to_le64(pointer); + memcpy((char *)dest->addr + offset, &pointer, entry->pointer.size); + + return 0; +} + +/* + * This function updates checksum fields of ACPI tables previously loaded + * by bios_linker_allocate() + * + * @entry : BIOS linker command entry which tells where to update ACPI table + * checksums + * @return: 0 on success, or negative value on failure + */ +static int bios_linker_add_checksum(struct bios_linker_entry *entry) +{ + struct fw_file *file; + uint8_t *data, cksum = 0; + uint8_t *cksum_start; + + file = qemu_fwcfg_find_file(entry->cksum.file); + if (!file || !file->addr) + return -ENOENT; + + data = (uint8_t *)(file->addr + le32_to_cpu(entry->cksum.offset)); + cksum_start = (uint8_t *)(file->addr + le32_to_cpu(entry->cksum.start)); + cksum = table_compute_checksum(cksum_start, + le32_to_cpu(entry->cksum.length)); + *data = cksum; + + return 0; +} + +unsigned install_e820_map(unsigned max_entries, struct e820entry *entries) +{ + entries[0].addr = 0; + entries[0].size = ISA_START_ADDRESS; + entries[0].type = E820_RAM; + + entries[1].addr = ISA_START_ADDRESS; + entries[1].size = ISA_END_ADDRESS - ISA_START_ADDRESS; + entries[1].type = E820_RESERVED; + + /* + * since we use memalign(malloc) to allocate high memory for + * storing ACPI tables, we need to reserve them in e820 tables, + * otherwise kernel will reclaim them and data will be corrupted + */ + entries[2].addr = ISA_END_ADDRESS; + entries[2].size = gd->relocaddr - TOTAL_MALLOC_LEN - ISA_END_ADDRESS; + entries[2].type = E820_RAM; + + /* for simplicity, reserve entire malloc space */ + entries[3].addr = gd->relocaddr - TOTAL_MALLOC_LEN; + entries[3].size = TOTAL_MALLOC_LEN; + entries[3].type = E820_RESERVED; + + entries[4].addr = gd->relocaddr; + entries[4].size = gd->ram_size - gd->relocaddr; + entries[4].type = E820_RESERVED; + + entries[5].addr = CONFIG_PCIE_ECAM_BASE; + entries[5].size = CONFIG_PCIE_ECAM_SIZE; + entries[5].type = E820_RESERVED; + + return 6; +} + +/* This function loads and patches ACPI tables provided by QEMU */ +unsigned long write_acpi_tables(unsigned long addr) +{ + int i, ret = 0; + struct fw_file *file; + struct bios_linker_entry *table_loader; + struct bios_linker_entry *entry; + uint32_t size; + struct list_head *list; + + /* make sure fw_list is loaded */ + ret = qemu_fwcfg_read_firmware_list(); + if (ret) { + printf("error: can't read firmware file list\n"); + return addr; + } + + file = qemu_fwcfg_find_file("etc/table-loader"); + if (!file) { + printf("error: can't find etc/table-loader\n"); + return addr; + } + + size = be32_to_cpu(file->cfg.size); + if ((size % sizeof(*entry)) != 0) { + printf("error: table-loader maybe corrupted\n"); + return addr; + } + + table_loader = malloc(size); + if (!table_loader) { + printf("error: no memory for table-loader\n"); + return addr; + } + + qemu_fwcfg_read_entry(be16_to_cpu(file->cfg.select), + size, table_loader); + + for (i = 0; i < (size / sizeof(*entry)); i++) { + entry = table_loader + i; + switch (le32_to_cpu(entry->command)) { + case BIOS_LINKER_LOADER_COMMAND_ALLOCATE: + ret = bios_linker_allocate(entry, &addr); + if (ret) + goto out; + break; + case BIOS_LINKER_LOADER_COMMAND_ADD_POINTER: + ret = bios_linker_add_pointer(entry); + if (ret) + goto out; + break; + case BIOS_LINKER_LOADER_COMMAND_ADD_CHECKSUM: + ret = bios_linker_add_checksum(entry); + if (ret) + goto out; + break; + default: + break; + } + } + +out: + if (ret) { + list_for_each(list, &fw_list) { + file = list_entry(list, struct fw_file, list); + if (file->addr) + free((void *)file->addr); + } + } + + free(table_loader); + return addr; +} +#endif + +static int qemu_fwcfg_list_firmware(void) +{ + int ret; + struct list_head *entry; + struct fw_file *file; + + /* make sure fw_list is loaded */ + ret = qemu_fwcfg_read_firmware_list(); + if (ret) + return ret; + + list_for_each(entry, &fw_list) { + file = list_entry(entry, struct fw_file, list); + printf("%-56s\n", file->cfg.name); + } + return 0; } diff --git a/arch/x86/cpu/qemu/qemu.c b/arch/x86/cpu/qemu/qemu.c index 5a7b929..f8af566 100644 --- a/arch/x86/cpu/qemu/qemu.c +++ b/arch/x86/cpu/qemu/qemu.c @@ -15,6 +15,31 @@ static bool i440fx; +static void enable_pm_piix(void) +{ + u8 en; + u16 cmd; + + /* Set the PM I/O base */ + x86_pci_write_config32(PIIX_PM, PMBA, CONFIG_ACPI_PM1_BASE | 1); + + /* Enable access to the PM I/O space */ + cmd = x86_pci_read_config16(PIIX_PM, PCI_COMMAND); + cmd |= PCI_COMMAND_IO; + x86_pci_write_config16(PIIX_PM, PCI_COMMAND, cmd); + + /* PM I/O Space Enable (PMIOSE) */ + en = x86_pci_read_config8(PIIX_PM, PMREGMISC); + en |= PMIOSE; + x86_pci_write_config8(PIIX_PM, PMREGMISC, en); +} + +static void enable_pm_ich9(void) +{ + /* Set the PM I/O base */ + x86_pci_write_config32(ICH9_PM, PMBA, CONFIG_ACPI_PM1_BASE | 1); +} + static void qemu_chipset_init(void) { u16 device, xbcs; @@ -53,10 +78,14 @@ static void qemu_chipset_init(void) xbcs = x86_pci_read_config16(PIIX_ISA, XBCS); xbcs |= APIC_EN; x86_pci_write_config16(PIIX_ISA, XBCS, xbcs); + + enable_pm_piix(); } else { /* Configure PCIe ECAM base address */ x86_pci_write_config32(PCI_BDF(0, 0, 0), PCIEX_BAR, CONFIG_PCIE_ECAM_BASE | BAR_EN); + + enable_pm_ich9(); } qemu_fwcfg_init(); diff --git a/arch/x86/dts/bayleybay.dts b/arch/x86/dts/bayleybay.dts index 9bf707b..fbca467 100644 --- a/arch/x86/dts/bayleybay.dts +++ b/arch/x86/dts/bayleybay.dts @@ -21,7 +21,7 @@ aliases { serial0 = &serial; - spi0 = "/spi"; + spi0 = &spi; }; config { @@ -184,7 +184,7 @@ >; }; - spi { + spi: spi { #address-cells = <1>; #size-cells = <0>; compatible = "intel,ich-spi"; diff --git a/arch/x86/dts/broadwell_som-6896.dts b/arch/x86/dts/broadwell_som-6896.dts index 4e9e410..7b2c515 100644 --- a/arch/x86/dts/broadwell_som-6896.dts +++ b/arch/x86/dts/broadwell_som-6896.dts @@ -10,7 +10,7 @@ compatible = "advantech,som-6896", "intel,broadwell"; aliases { - spi0 = "/spi"; + spi0 = &spi; }; config { @@ -34,7 +34,7 @@ reg = <0x0000f800 0 0 0 0>; compatible = "intel,pch9"; - spi { + spi: spi { #address-cells = <1>; #size-cells = <0>; compatible = "intel,ich-spi"; diff --git a/arch/x86/dts/chromebook_link.dts b/arch/x86/dts/chromebook_link.dts index d148d6e..5807203 100644 --- a/arch/x86/dts/chromebook_link.dts +++ b/arch/x86/dts/chromebook_link.dts @@ -11,7 +11,7 @@ compatible = "google,link", "intel,celeron-ivybridge"; aliases { - spi0 = "/pci/pch/spi"; + spi0 = &spi; usb0 = &usb_0; usb1 = &usb_1; }; @@ -252,7 +252,7 @@ /* Enable EC SMI source */ intel,alt-gp-smi-enable = <0x0100>; - spi { + spi: spi { #address-cells = <1>; #size-cells = <0>; compatible = "intel,ich-spi"; diff --git a/arch/x86/dts/chromebox_panther.dts b/arch/x86/dts/chromebox_panther.dts index 2302701..48f0c77 100644 --- a/arch/x86/dts/chromebox_panther.dts +++ b/arch/x86/dts/chromebox_panther.dts @@ -10,7 +10,7 @@ compatible = "google,panther", "intel,haswell"; aliases { - spi0 = "/spi"; + spi0 = &spi; }; config { @@ -56,7 +56,7 @@ reg = <0x0000f800 0 0 0 0>; compatible = "intel,pch9"; - spi { + spi: spi { #address-cells = <1>; #size-cells = <0>; compatible = "intel,ich-spi"; diff --git a/arch/x86/dts/crownbay.dts b/arch/x86/dts/crownbay.dts index d6dd0b4..47fab0f 100644 --- a/arch/x86/dts/crownbay.dts +++ b/arch/x86/dts/crownbay.dts @@ -19,7 +19,7 @@ compatible = "intel,crownbay", "intel,queensbay"; aliases { - spi0 = "/spi"; + spi0 = &spi; }; config { @@ -227,7 +227,7 @@ >; }; - spi { + spi: spi { #address-cells = <1>; #size-cells = <0>; compatible = "intel,ich-spi"; diff --git a/arch/x86/dts/galileo.dts b/arch/x86/dts/galileo.dts index a2f5a1f..dd75fc4 100644 --- a/arch/x86/dts/galileo.dts +++ b/arch/x86/dts/galileo.dts @@ -18,7 +18,7 @@ compatible = "intel,galileo", "intel,quark"; aliases { - spi0 = "/spi"; + spi0 = &spi; }; config { @@ -115,7 +115,7 @@ >; }; - spi { + spi: spi { #address-cells = <1>; #size-cells = <0>; compatible = "intel,ich-spi"; diff --git a/arch/x86/dts/minnowmax.dts b/arch/x86/dts/minnowmax.dts index e7ef7c9..7afdf6c 100644 --- a/arch/x86/dts/minnowmax.dts +++ b/arch/x86/dts/minnowmax.dts @@ -20,7 +20,7 @@ aliases { serial0 = &serial; - spi0 = "/spi"; + spi0 = &spi; }; config { @@ -218,7 +218,7 @@ >; }; - spi { + spi: spi { #address-cells = <1>; #size-cells = <0>; compatible = "intel,ich-spi"; diff --git a/arch/x86/include/asm/arch-qemu/device.h b/arch/x86/include/asm/arch-qemu/device.h index 75a435e..38ab798 100644 --- a/arch/x86/include/asm/arch-qemu/device.h +++ b/arch/x86/include/asm/arch-qemu/device.h @@ -13,6 +13,8 @@ #define PIIX_ISA PCI_BDF(0, 1, 0) #define PIIX_IDE PCI_BDF(0, 1, 1) #define PIIX_USB PCI_BDF(0, 1, 2) +#define PIIX_PM PCI_BDF(0, 1, 3) +#define ICH9_PM PCI_BDF(0, 0x1f, 0) #define I440FX_VGA PCI_BDF(0, 2, 0) #define QEMU_Q35 PCI_BDF(0, 0, 0) diff --git a/arch/x86/include/asm/arch-qemu/qemu.h b/arch/x86/include/asm/arch-qemu/qemu.h index b67d342..a85eee8 100644 --- a/arch/x86/include/asm/arch-qemu/qemu.h +++ b/arch/x86/include/asm/arch-qemu/qemu.h @@ -33,4 +33,9 @@ #define LOW_RAM_ADDR 0x34 #define HIGH_RAM_ADDR 0x35 +/* PM registers */ +#define PMBA 0x40 +#define PMREGMISC 0x80 +#define PMIOSE (1 << 0) + #endif /* _ARCH_QEMU_H_ */ diff --git a/arch/x86/include/asm/fw_cfg.h b/arch/x86/include/asm/fw_cfg.h index fb110fa..e9450c6 100644 --- a/arch/x86/include/asm/fw_cfg.h +++ b/arch/x86/include/asm/fw_cfg.h @@ -12,6 +12,8 @@ #define FW_DMA_PORT_LOW 0x514 #define FW_DMA_PORT_HIGH 0x518 +#include <linux/list.h> + enum qemu_fwcfg_items { FW_CFG_SIGNATURE = 0x00, FW_CFG_ID = 0x01, @@ -45,11 +47,23 @@ enum qemu_fwcfg_items { FW_CFG_INVALID = 0xffff, }; +enum { + BIOS_LINKER_LOADER_COMMAND_ALLOCATE = 0x1, + BIOS_LINKER_LOADER_COMMAND_ADD_POINTER = 0x2, + BIOS_LINKER_LOADER_COMMAND_ADD_CHECKSUM = 0x3, +}; + +enum { + BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH = 0x1, + BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG = 0x2, +}; + #define FW_CFG_FILE_SLOTS 0x10 #define FW_CFG_MAX_ENTRY (FW_CFG_FILE_FIRST + FW_CFG_FILE_SLOTS) #define FW_CFG_ENTRY_MASK ~(FW_CFG_WRITE_CHANNEL | FW_CFG_ARCH_LOCAL) #define FW_CFG_MAX_FILE_PATH 56 +#define BIOS_LINKER_LOADER_FILESZ FW_CFG_MAX_FILE_PATH #define QEMU_FW_CFG_SIGNATURE (('Q' << 24) | ('E' << 16) | ('M' << 8) | 'U') @@ -67,9 +81,10 @@ struct fw_cfg_file { char name[FW_CFG_MAX_FILE_PATH]; }; -struct fw_cfg_files { - __be32 count; - struct fw_cfg_file files[]; +struct fw_file { + struct fw_cfg_file cfg; /* firmware file information */ + unsigned long addr; /* firmware file in-memory address */ + struct list_head list; /* list node to link to fw_list */ }; struct fw_cfg_dma_access { @@ -78,6 +93,55 @@ struct fw_cfg_dma_access { __be64 address; }; +struct bios_linker_entry { + __le32 command; + union { + /* + * COMMAND_ALLOCATE - allocate a table from @alloc.file + * subject to @alloc.align alignment (must be power of 2) + * and @alloc.zone (can be HIGH or FSEG) requirements. + * + * Must appear exactly once for each file, and before + * this file is referenced by any other command. + */ + struct { + char file[BIOS_LINKER_LOADER_FILESZ]; + __le32 align; + uint8_t zone; + } alloc; + + /* + * COMMAND_ADD_POINTER - patch the table (originating from + * @dest_file) at @pointer.offset, by adding a pointer to the + * table originating from @src_file. 1,2,4 or 8 byte unsigned + * addition is used depending on @pointer.size. + */ + struct { + char dest_file[BIOS_LINKER_LOADER_FILESZ]; + char src_file[BIOS_LINKER_LOADER_FILESZ]; + __le32 offset; + uint8_t size; + } pointer; + + /* + * COMMAND_ADD_CHECKSUM - calculate checksum of the range + * specified by @cksum_start and @cksum_length fields, + * and then add the value at @cksum.offset. + * Checksum simply sums -X for each byte X in the range + * using 8-bit math. + */ + struct { + char file[BIOS_LINKER_LOADER_FILESZ]; + __le32 offset; + __le32 start; + __le32 length; + } cksum; + + /* padding */ + char pad[124]; + }; +} __packed; + /** * Initialize QEMU fw_cfg interface */ diff --git a/arch/x86/include/asm/u-boot-x86.h b/arch/x86/include/asm/u-boot-x86.h index 9c143ca..031740b 100644 --- a/arch/x86/include/asm/u-boot-x86.h +++ b/arch/x86/include/asm/u-boot-x86.h @@ -45,7 +45,7 @@ void dram_init_banksize(void); int default_print_cpuinfo(void); /* Set up a UART which can be used with printch(), printhex8(), etc. */ -int setup_early_uart(void); +int setup_internal_uart(int enable); void setup_pcat_compatibility(void); diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index d9fc296..50bc69a 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -32,7 +32,9 @@ obj-$(CONFIG_X86_RAMTEST) += ramtest.o obj-y += sfi.o obj-$(CONFIG_GENERATE_SMBIOS_TABLE) += smbios.o obj-y += string.o +ifndef CONFIG_QEMU_ACPI_TABLE obj-$(CONFIG_GENERATE_ACPI_TABLE) += acpi_table.o +endif obj-y += tables.o obj-$(CONFIG_CMD_ZBOOT) += zimage.o obj-$(CONFIG_HAVE_FSP) += fsp/ diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c index ab1db7e..2ec5ad2 100644 --- a/arch/x86/lib/acpi_table.c +++ b/arch/x86/lib/acpi_table.c @@ -331,6 +331,10 @@ static void acpi_create_ssdt_generator(acpi_header_t *ssdt, ssdt->checksum = table_compute_checksum((void *)ssdt, ssdt->length); } +/* + * QEMU's version of write_acpi_tables is defined in + * arch/x86/cpu/qemu/fw_cfg.c + */ unsigned long write_acpi_tables(unsigned long start) { unsigned long current; diff --git a/arch/x86/lib/fsp/fsp_support.c b/arch/x86/lib/fsp/fsp_support.c index 875c96a..29fa060 100644 --- a/arch/x86/lib/fsp/fsp_support.c +++ b/arch/x86/lib/fsp/fsp_support.c @@ -111,7 +111,7 @@ void fsp_init(u32 stack_top, u32 boot_mode, void *nvs_buf) #endif #ifdef CONFIG_DEBUG_UART - setup_early_uart(); + setup_internal_uart(1); #endif fsp_hdr = find_fsp_header(); diff --git a/doc/README.x86 b/doc/README.x86 index 36aaef0..6d9cb10 100644 --- a/doc/README.x86 +++ b/doc/README.x86 @@ -706,7 +706,7 @@ the board, then you can use post_code() calls from C or assembler to monitor boot progress. This can be good for debugging. If not, you can try to get serial working as early as possible. The early -debug serial port may be useful here. See setup_early_uart() for an example. +debug serial port may be useful here. See setup_internal_uart() for an example. During the U-Boot porting, one of the important steps is to write correct PIRQ routing information in the board device tree. Without it, device drivers in the diff --git a/doc/device-tree-bindings/misc/intel,baytrail-fsp.txt b/doc/device-tree-bindings/misc/intel,baytrail-fsp.txt index b44b5b5..07fa46e 100644 --- a/doc/device-tree-bindings/misc/intel,baytrail-fsp.txt +++ b/doc/device-tree-bindings/misc/intel,baytrail-fsp.txt @@ -74,12 +74,41 @@ discovered by the FSP and used to setup main memory. # Integer properties: - - fsp,dram-speed + - fsp,dram-speed: + 0x0: "800 MHz" + 0x1: "1066 MHz" + 0x2: "1333 MHz" + 0x3: "1600 MHz" + - fsp,dram-type + 0x0: "DDR3" + 0x1: "DDR3L" + 0x2: "DDR3U" + 0x4: "LPDDR2" + 0x5: "LPDDR3" + 0x6: "DDR4" + - fsp,dimm-width + 0x0: "x8" + 0x1: "x16" + 0x2: "x32" + - fsp,dimm-density + 0x0: "1 Gbit" + 0x1: "2 Gbit" + 0x2: "4 Gbit" + 0x3: "8 Gbit" + - fsp,dimm-bus-width + 0x0: "8 bits" + 0x1: "16 bits" + 0x2: "32 bits" + 0x3: "64 bits" + - fsp,dimm-sides + 0x0: "1 rank" + 0x1: "2 ranks" + - fsp,dimm-tcl - fsp,dimm-trpt-rcd - fsp,dimm-twr diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index cba2363..af8667f 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -130,4 +130,12 @@ config RESET effect a reset. The uclass will try all available drivers when reset_walk() is called. +config WINBOND_W83627 + bool "Enable Winbond Super I/O driver" + help + If you say Y here, you will get support for the Winbond + W83627 Super I/O driver. This can be used to enable the + legacy UART or other devices in the Winbond Super IO chips + on X86 platforms. + endmenu diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index cd4846b..e1e3c6b 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -41,3 +41,4 @@ obj-$(CONFIG_FSL_SEC_MON) += fsl_sec_mon.o obj-$(CONFIG_PCA9551_LED) += pca9551_led.o obj-$(CONFIG_RESET) += reset-uclass.o obj-$(CONFIG_FSL_DEVICE_DISABLE) += fsl_devdis.o +obj-$(CONFIG_WINBOND_W83627) += winbond_w83627.o diff --git a/drivers/misc/winbond_w83627.c b/drivers/misc/winbond_w83627.c new file mode 100644 index 0000000..59db7d9 --- /dev/null +++ b/drivers/misc/winbond_w83627.c @@ -0,0 +1,41 @@ +/* + * Copyright (C) 2016 Stefan Roese <sr@denx.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/pnp_def.h> + +#define WINBOND_ENTRY_KEY 0x87 +#define WINBOND_EXIT_KEY 0xaa + +/* Enable configuration: pass entry key '0x87' into index port dev twice */ +static void pnp_enter_conf_state(u16 dev) +{ + u16 port = dev >> 8; + + outb(WINBOND_ENTRY_KEY, port); + outb(WINBOND_ENTRY_KEY, port); +} + +/* Disable configuration: pass exit key '0xAA' into index port dev */ +static void pnp_exit_conf_state(u16 dev) +{ + u16 port = dev >> 8; + + outb(WINBOND_EXIT_KEY, port); +} + +/* Bring up early serial debugging output before the RAM is initialized */ +void winbond_enable_serial(uint dev, uint iobase, uint irq) +{ + pnp_enter_conf_state(dev); + pnp_set_logical_device(dev); + pnp_set_enable(dev, 0); + pnp_set_iobase(dev, PNP_IDX_IO0, iobase); + pnp_set_irq(dev, PNP_IDX_IRQ0, irq); + pnp_set_enable(dev, 1); + pnp_exit_conf_state(dev); +} diff --git a/include/configs/x86-common.h b/include/configs/x86-common.h index 4182a3b..dc7b227 100644 --- a/include/configs/x86-common.h +++ b/include/configs/x86-common.h @@ -100,6 +100,7 @@ * Command line configuration. */ #define CONFIG_CMD_DATE +#define CONFIG_CMD_FS_GENERIC #define CONFIG_CMD_FPGA_LOADMK #define CONFIG_CMD_IO #define CONFIG_CMD_IRQ diff --git a/include/winbond_w83627.h b/include/winbond_w83627.h new file mode 100644 index 0000000..ac3bec6 --- /dev/null +++ b/include/winbond_w83627.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2016 Stefan Roese <sr@denx.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _WINBOND_W83627_H_ +#define _WINBOND_W83627_H_ + +/* I/O address of Winbond Super IO chip */ +#define WINBOND_IO_PORT 0x2e + +/* Logical device number */ +#define W83627DHG_FDC 0 /* Floppy */ +#define W83627DHG_PP 1 /* Parallel port */ +#define W83627DHG_SP1 2 /* Com1 */ +#define W83627DHG_SP2 3 /* Com2 */ +#define W83627DHG_KBC 5 /* PS/2 keyboard & mouse */ +#define W83627DHG_SPI 6 /* Serial peripheral interface */ +#define W83627DHG_WDTO_PLED 8 /* WDTO#, PLED */ +#define W83627DHG_ACPI 10 /* ACPI */ +#define W83627DHG_HWM 11 /* Hardware monitor */ +#define W83627DHG_PECI_SST 12 /* PECI, SST */ + +/** + * Configure the base I/O port of the specified serial device and enable the + * serial device. + * + * @dev: high 8 bits = super I/O port, low 8 bits = logical device number + * @iobase: processor I/O port address to assign to this serial device + * @irq: processor IRQ number to assign to this serial device + */ +void winbond_enable_serial(uint dev, uint iobase, uint irq); + +#endif /* _WINBOND_W83627_H_ */ |