Patrick Georgi (patrick@georgi-clan.de) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6298
-gerrit
commit b5582a1d192d95a102a98dcdeb00177ffcd7dbb9 Author: Patrick Georgi patrick@georgi-clan.de Date: Wed Jul 16 19:39:02 2014 +0200
reg_scripts: move them to soc/intel/baytrail
The baytrail code is the only user of this API, and with its #if CONFIG_$CONCRETE_HARDWARE blocks, it was a bit of a sore spot in src/lib.
Change-Id: I10f5f74188aa83f2e747503b5cd4b28dba5f4012 Signed-off-by: Patrick Georgi patrick@georgi-clan.de --- src/Kconfig | 7 - src/include/reg_script.h | 339 ---------------------- src/lib/Makefile.inc | 2 - src/lib/reg_script.c | 551 ------------------------------------ src/soc/intel/baytrail/Makefile.inc | 1 + src/soc/intel/baytrail/reg_script.c | 538 +++++++++++++++++++++++++++++++++++ src/soc/intel/baytrail/reg_script.h | 339 ++++++++++++++++++++++ src/soc/intel/fsp_baytrail/Kconfig | 1 - 8 files changed, 878 insertions(+), 900 deletions(-)
diff --git a/src/Kconfig b/src/Kconfig index af82353..ecc2757 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -1102,13 +1102,6 @@ config POWER_BUTTON_IS_OPTIONAL help Internal option that controls ENABLE_POWER_BUTTON visibility.
-config REG_SCRIPT - bool - default y if ARCH_X86 - default n - help - Internal option that controls whether we compile in register scripts. - # Maximum reboot count # TODO: Improve description. config MAX_REBOOT_CNT diff --git a/src/include/reg_script.h b/src/include/reg_script.h deleted file mode 100644 index 72e1e96..0000000 --- a/src/include/reg_script.h +++ /dev/null @@ -1,339 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * 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 - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef REG_SCRIPT_H -#define REG_SCRIPT_H - -#include <stdint.h> -#include <arch/io.h> -#include <device/device.h> -#include <device/resource.h> - -/* - * The reg script library is a way to provide data-driven I/O accesses for - * initializing devices. It currently supports PCI, legacy I/O, - * memory-mapped I/O, and IOSF accesses. - * - * In order to simplify things for the developer the following features - * are employed: - * - Chaining of tables that allow runtime tables to chain to compile-time - * tables. - * - Notion of current device (device_t) being worked on. This allows for - * PCI config, io, and mmio on a particular device's resources. - * - * Note that when using REG_SCRIPT_COMMAND_NEXT there is an implicit push - * and pop of the context. A chained reg_script inherits the previous - * context (such as current device), but it does not impact the previous - * context in any way. - */ - -enum { - REG_SCRIPT_COMMAND_READ, - REG_SCRIPT_COMMAND_WRITE, - REG_SCRIPT_COMMAND_RMW, - REG_SCRIPT_COMMAND_POLL, - REG_SCRIPT_COMMAND_SET_DEV, - REG_SCRIPT_COMMAND_NEXT, - REG_SCRIPT_COMMAND_END, -}; - -enum { - REG_SCRIPT_TYPE_PCI, - REG_SCRIPT_TYPE_IO, - REG_SCRIPT_TYPE_MMIO, - REG_SCRIPT_TYPE_RES, - REG_SCRIPT_TYPE_IOSF, - REG_SCRIPT_TYPE_MSR, -}; - -enum { - REG_SCRIPT_SIZE_8, - REG_SCRIPT_SIZE_16, - REG_SCRIPT_SIZE_32, - REG_SCRIPT_SIZE_64, -}; - -struct reg_script { - uint32_t command; - uint32_t type; - uint32_t size; - uint32_t reg; - uint64_t mask; - uint64_t value; - uint32_t timeout; - union { - uint32_t id; - const struct reg_script *next; - device_t dev; - unsigned int res_index; - }; -}; - -/* Internal helper Macros. */ - -#define _REG_SCRIPT_ENCODE_RAW(cmd_, type_, size_, reg_, \ - mask_, value_, timeout_, id_) \ - { .command = cmd_, \ - .type = type_, \ - .size = size_, \ - .reg = reg_, \ - .mask = mask_, \ - .value = value_, \ - .timeout = timeout_, \ - .id = id_, \ - } - -#define _REG_SCRIPT_ENCODE_RES(cmd_, type_, res_index_, size_, reg_, \ - mask_, value_, timeout_) \ - { .command = cmd_, \ - .type = type_, \ - .size = size_, \ - .reg = reg_, \ - .mask = mask_, \ - .value = value_, \ - .timeout = timeout_, \ - .res_index = res_index_, \ - } - -/* - * PCI - */ - -#define REG_SCRIPT_PCI(cmd_, bits_, reg_, mask_, value_, timeout_) \ - _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_##cmd_, \ - REG_SCRIPT_TYPE_PCI, \ - REG_SCRIPT_SIZE_##bits_, \ - reg_, mask_, value_, timeout_, 0) -#define REG_PCI_READ8(reg_) \ - REG_SCRIPT_PCI(READ, 8, reg_, 0, 0, 0) -#define REG_PCI_READ16(reg_) \ - REG_SCRIPT_PCI(READ, 16, reg_, 0, 0, 0) -#define REG_PCI_READ32(reg_) \ - REG_SCRIPT_PCI(READ, 32, reg_, 0, 0, 0) -#define REG_PCI_WRITE8(reg_, value_) \ - REG_SCRIPT_PCI(WRITE, 8, reg_, 0, value_, 0) -#define REG_PCI_WRITE16(reg_, value_) \ - REG_SCRIPT_PCI(WRITE, 16, reg_, 0, value_, 0) -#define REG_PCI_WRITE32(reg_, value_) \ - REG_SCRIPT_PCI(WRITE, 32, reg_, 0, value_, 0) -#define REG_PCI_RMW8(reg_, mask_, value_) \ - REG_SCRIPT_PCI(RMW, 8, reg_, mask_, value_, 0) -#define REG_PCI_RMW16(reg_, mask_, value_) \ - REG_SCRIPT_PCI(RMW, 16, reg_, mask_, value_, 0) -#define REG_PCI_RMW32(reg_, mask_, value_) \ - REG_SCRIPT_PCI(RMW, 32, reg_, mask_, value_, 0) -#define REG_PCI_OR8(reg_, value_) \ - REG_SCRIPT_PCI(RMW, 8, reg_, 0xff, value_, 0) -#define REG_PCI_OR16(reg_, value_) \ - REG_SCRIPT_PCI(RMW, 16, reg_, 0xffff, value_, 0) -#define REG_PCI_OR32(reg_, value_) \ - REG_SCRIPT_PCI(RMW, 32, reg_, 0xffffffff, value_, 0) -#define REG_PCI_POLL8(reg_, mask_, value_, timeout_) \ - REG_SCRIPT_PCI(POLL, 8, reg_, mask_, value_, timeout_) -#define REG_PCI_POLL16(reg_, mask_, value_, timeout_) \ - REG_SCRIPT_PCI(POLL, 16, reg_, mask_, value_, timeout_) -#define REG_PCI_POLL32(reg_, mask_, value_, timeout_) \ - REG_SCRIPT_PCI(POLL, 32, reg_, mask_, value_, timeout_) - -/* - * Legacy IO - */ - -#define REG_SCRIPT_IO(cmd_, bits_, reg_, mask_, value_, timeout_) \ - _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_##cmd_, \ - REG_SCRIPT_TYPE_IO, \ - REG_SCRIPT_SIZE_##bits_, \ - reg_, mask_, value_, timeout_, 0) -#define REG_IO_READ8(reg_) \ - REG_SCRIPT_IO(READ, 8, reg_, 0, 0, 0) -#define REG_IO_READ16(reg_) \ - REG_SCRIPT_IO(READ, 16, reg_, 0, 0, 0) -#define REG_IO_READ32(reg_) \ - REG_SCRIPT_IO(READ, 32, reg_, 0, 0, 0) -#define REG_IO_WRITE8(reg_, value_) \ - REG_SCRIPT_IO(WRITE, 8, reg_, 0, value_, 0) -#define REG_IO_WRITE16(reg_, value_) \ - REG_SCRIPT_IO(WRITE, 16, reg_, 0, value_, 0) -#define REG_IO_WRITE32(reg_, value_) \ - REG_SCRIPT_IO(WRITE, 32, reg_, 0, value_, 0) -#define REG_IO_RMW8(reg_, mask_, value_) \ - REG_SCRIPT_IO(RMW, 8, reg_, mask_, value_, 0) -#define REG_IO_RMW16(reg_, mask_, value_) \ - REG_SCRIPT_IO(RMW, 16, reg_, mask_, value_, 0) -#define REG_IO_RMW32(reg_, mask_, value_) \ - REG_SCRIPT_IO(RMW, 32, reg_, mask_, value_, 0) -#define REG_IO_OR8(reg_, value_) \ - REG_SCRIPT_IO_RMW8(_reg, 0xff, value) -#define REG_IO_OR16(reg_, value_) \ - REG_SCRIPT_IO_RMW16(_reg, 0xffff, value) -#define REG_IO_OR32(reg_, value_) \ - REG_SCRIPT_IO_RMW32(_reg, 0xffffffff, value) -#define REG_IO_POLL8(reg_, mask_, value_, timeout_) \ - REG_SCRIPT_IO(POLL, 8, reg_, mask_, value_, timeout_) -#define REG_IO_POLL16(reg_, mask_, value_, timeout_) \ - REG_SCRIPT_IO(POLL, 16, reg_, mask_, value_, timeout_) -#define REG_IO_POLL32(reg_, mask_, value_, timeout_) \ - REG_SCRIPT_IO(POLL, 32, reg_, mask_, value_, timeout_) - -/* - * Memory Mapped IO - */ - -#define REG_SCRIPT_MMIO(cmd_, bits_, reg_, mask_, value_, timeout_) \ - _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_##cmd_, \ - REG_SCRIPT_TYPE_MMIO, \ - REG_SCRIPT_SIZE_##bits_, \ - reg_, mask_, value_, timeout_, 0) -#define REG_MMIO_READ8(reg_) \ - REG_SCRIPT_MMIO(READ, 8, reg_, 0, 0, 0) -#define REG_MMIO_READ16(reg_) \ - REG_SCRIPT_MMIO(READ, 16, reg_, 0, 0, 0) -#define REG_MMIO_READ32(reg_) \ - REG_SCRIPT_MMIO(READ, 32, reg_, 0, 0, 0) -#define REG_MMIO_WRITE8(reg_, value_) \ - REG_SCRIPT_MMIO(WRITE, 8, reg_, 0, value_, 0) -#define REG_MMIO_WRITE16(reg_, value_) \ - REG_SCRIPT_MMIO(WRITE, 16, reg_, 0, value_, 0) -#define REG_MMIO_WRITE32(reg_, value_) \ - REG_SCRIPT_MMIO(WRITE, 32, reg_, 0, value_, 0) -#define REG_MMIO_RMW8(reg_, mask_, value_) \ - REG_SCRIPT_MMIO(RMW, 8, reg_, mask_, value_, 0) -#define REG_MMIO_RMW16(reg_, mask_, value_) \ - REG_SCRIPT_MMIO(RMW, 16, reg_, mask_, value_, 0) -#define REG_MMIO_RMW32(reg_, mask_, value_) \ - REG_SCRIPT_MMIO(RMW, 32, reg_, mask_, value_, 0) -#define REG_MMIO_OR8(reg_, value_) \ - REG_MMIO_RMW8(reg_, 0xff, value_) -#define REG_MMIO_OR16(reg_, value_) \ - REG_MMIO_RMW16(reg_, 0xffff, value_) -#define REG_MMIO_OR32(reg_, value_) \ - REG_MMIO_RMW32(reg_, 0xffffffff, value_) -#define REG_MMIO_POLL8(reg_, mask_, value_, timeout_) \ - REG_SCRIPT_MMIO(POLL, 8, reg_, mask_, value_, timeout_) -#define REG_MMIO_POLL16(reg_, mask_, value_, timeout_) \ - REG_SCRIPT_MMIO(POLL, 16, reg_, mask_, value_, timeout_) -#define REG_MMIO_POLL32(reg_, mask_, value_, timeout_) \ - REG_SCRIPT_MMIO(POLL, 32, reg_, mask_, value_, timeout_) - -/* - * Access through a device's resource such as a Base Address Register (BAR) - */ - -#define REG_SCRIPT_RES(cmd_, bits_, bar_, reg_, mask_, value_, timeout_) \ - _REG_SCRIPT_ENCODE_RES(REG_SCRIPT_COMMAND_##cmd_, \ - REG_SCRIPT_TYPE_RES, bar_, \ - REG_SCRIPT_SIZE_##bits_, \ - reg_, mask_, value_, timeout_) -#define REG_RES_READ8(bar_, reg_) \ - REG_SCRIPT_RES(READ, 8, bar_, reg_, 0, 0, 0) -#define REG_RES_READ16(bar_, reg_) \ - REG_SCRIPT_RES(READ, 16, bar_, reg_, 0, 0, 0) -#define REG_RES_READ32(bar_, reg_) \ - REG_SCRIPT_RES(READ, 32, bar_, reg_, 0, 0, 0) -#define REG_RES_WRITE8(bar_, reg_, value_) \ - REG_SCRIPT_RES(WRITE, 8, bar_, reg_, 0, value_, 0) -#define REG_RES_WRITE16(bar_, reg_, value_) \ - REG_SCRIPT_RES(WRITE, 16, bar_, reg_, 0, value_, 0) -#define REG_RES_WRITE32(bar_, reg_, value_) \ - REG_SCRIPT_RES(WRITE, 32, bar_, reg_, 0, value_, 0) -#define REG_RES_RMW8(bar_, reg_, mask_, value_) \ - REG_SCRIPT_RES(RMW, 8, bar_, reg_, mask_, value_, 0) -#define REG_RES_RMW16(bar_, reg_, mask_, value_) \ - REG_SCRIPT_RES(RMW, 16, bar_, reg_, mask_, value_, 0) -#define REG_RES_RMW32(bar_, reg_, mask_, value_) \ - REG_SCRIPT_RES(RMW, 32, bar_, reg_, mask_, value_, 0) -#define REG_RES_OR8(bar_, reg_, value_) \ - REG_RES_RMW8(bar_, reg_, 0xff, value_) -#define REG_RES_OR16(bar_, reg_, value_) \ - REG_RES_RMW16(bar_, reg_, 0xffff, value_) -#define REG_RES_OR32(bar_, reg_, value_) \ - REG_RES_RMW32(bar_, reg_, 0xffffffff, value_) -#define REG_RES_POLL8(bar_, reg_, mask_, value_, timeout_) \ - REG_SCRIPT_RES(POLL, 8, bar_, reg_, mask_, value_, timeout_) -#define REG_RES_POLL16(bar_, reg_, mask_, value_, timeout_) \ - REG_SCRIPT_RES(POLL, 16, bar_, reg_, mask_, value_, timeout_) -#define REG_RES_POLL32(bar_, reg_, mask_, value_, timeout_) \ - REG_SCRIPT_RES(POLL, 32, bar_, reg_, mask_, value_, timeout_) - -/* - * IO Sideband Function - */ - -#define REG_SCRIPT_IOSF(cmd_, unit_, reg_, mask_, value_, timeout_) \ - _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_##cmd_, \ - REG_SCRIPT_TYPE_IOSF, \ - REG_SCRIPT_SIZE_32, \ - reg_, mask_, value_, timeout_, unit_) -#define REG_IOSF_READ(unit_, reg_) \ - REG_SCRIPT_IOSF(READ, unit_, reg_, 0, 0, 0) -#define REG_IOSF_WRITE(unit_, reg_, value_) \ - REG_SCRIPT_IOSF(WRITE, unit_, reg_, 0, value_, 0) -#define REG_IOSF_RMW(unit_, reg_, mask_, value_) \ - REG_SCRIPT_IOSF(RMW, unit_, reg_, mask_, value_, 0) -#define REG_IOSF_OR(unit_, reg_, value_) \ - REG_IOSF_RMW(unit_, reg_, 0xffffffff, value_) -#define REG_IOSF_POLL(unit_, reg_, mask_, value_, timeout_) \ - REG_SCRIPT_IOSF(POLL, unit_, reg_, mask_, value_, timeout_) - -/* - * CPU Model Specific Register - */ - -#define REG_SCRIPT_MSR(cmd_, reg_, mask_, value_, timeout_) \ - _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_##cmd_, \ - REG_SCRIPT_TYPE_MSR, \ - REG_SCRIPT_SIZE_64, \ - reg_, mask_, value_, timeout_, 0) -#define REG_MSR_READ(reg_) \ - REG_SCRIPT_MSR(READ, reg_, 0, 0, 0) -#define REG_MSR_WRITE(reg_, value_) \ - REG_SCRIPT_MSR(WRITE, reg_, 0, value_, 0) -#define REG_MSR_RMW(reg_, mask_, value_) \ - REG_SCRIPT_MSR(RMW, reg_, mask_, value_, 0) -#define REG_MSR_OR(reg_, value_) \ - REG_MSR_RMW(reg_, -1ULL, value_) -#define REG_MSR_POLL(reg_, mask_, value_, timeout_) \ - REG_SCRIPT_MSR(POLL, reg_, mask_, value_, timeout_) - -/* - * Chain to another table. - */ -#define REG_SCRIPT_NEXT(next_) \ - { .command = REG_SCRIPT_COMMAND_NEXT, \ - .next = next_, \ - } - -/* - * Set current device - */ -#define REG_SCRIPT_SET_DEV(dev_) \ - { .command = REG_SCRIPT_COMMAND_SET_DEV, \ - .dev = dev_, \ - } - -/* - * Last script entry. All tables need to end with REG_SCRIPT_END. - */ -#define REG_SCRIPT_END \ - _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_END, 0, 0, 0, 0, 0, 0, 0) - -void reg_script_run(const struct reg_script *script); -void reg_script_run_on_dev(device_t dev, const struct reg_script *step); - -#endif /* REG_SCRIPT_H */ diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index 5298bbe..9da90d1 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -83,8 +83,6 @@ ramstage-y += cbmem_info.c ramstage-y += hexdump.c romstage-y += hexdump.c
-ramstage-$(CONFIG_REG_SCRIPT) += reg_script.c - romstage-$(CONFIG_CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM) += ramstage_cache.c
smm-y += cbfs.c memcmp.c diff --git a/src/lib/reg_script.c b/src/lib/reg_script.c deleted file mode 100644 index 647723b..0000000 --- a/src/lib/reg_script.c +++ /dev/null @@ -1,551 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * 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 - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <arch/io.h> -#include <console/console.h> -#include <delay.h> -#include <device/device.h> -#include <device/resource.h> -#include <device/pci.h> -#include <stdint.h> -#include <reg_script.h> - -#if CONFIG_ARCH_X86 -#include <cpu/x86/msr.h> -#endif - -#if CONFIG_SOC_INTEL_BAYTRAIL -#include <baytrail/iosf.h> -#endif - -#define POLL_DELAY 100 /* 100us */ -#if defined(__PRE_RAM__) -#define EMPTY_DEV 0 -#else -#define EMPTY_DEV NULL -#endif - -struct reg_script_context { - device_t dev; - struct resource *res; - const struct reg_script *step; -}; - -static inline void reg_script_set_dev(struct reg_script_context *ctx, - device_t dev) -{ - ctx->dev = dev; - ctx->res = NULL; -} - -static inline void reg_script_set_step(struct reg_script_context *ctx, - const struct reg_script *step) -{ - ctx->step = step; -} - -static inline const struct reg_script * -reg_script_get_step(struct reg_script_context *ctx) -{ - return ctx->step; -} - -static struct resource *reg_script_get_resource(struct reg_script_context *ctx) -{ -#if defined(__PRE_RAM__) - return NULL; -#else - struct resource *res; - const struct reg_script *step = reg_script_get_step(ctx); - - res = ctx->res; - - if (res != NULL && res->index == step->res_index) - return res; - - res = find_resource(ctx->dev, step->res_index); - ctx->res = res; - return res; -#endif -} - -static uint32_t reg_script_read_pci(struct reg_script_context *ctx) -{ - const struct reg_script *step = reg_script_get_step(ctx); - - switch (step->size) { - case REG_SCRIPT_SIZE_8: - return pci_read_config8(ctx->dev, step->reg); - case REG_SCRIPT_SIZE_16: - return pci_read_config16(ctx->dev, step->reg); - case REG_SCRIPT_SIZE_32: - return pci_read_config32(ctx->dev, step->reg); - } - return 0; -} - -static void reg_script_write_pci(struct reg_script_context *ctx) -{ - const struct reg_script *step = reg_script_get_step(ctx); - - switch (step->size) { - case REG_SCRIPT_SIZE_8: - pci_write_config8(ctx->dev, step->reg, step->value); - break; - case REG_SCRIPT_SIZE_16: - pci_write_config16(ctx->dev, step->reg, step->value); - break; - case REG_SCRIPT_SIZE_32: - pci_write_config32(ctx->dev, step->reg, step->value); - break; - } -} - -static uint32_t reg_script_read_io(struct reg_script_context *ctx) -{ - const struct reg_script *step = reg_script_get_step(ctx); - - switch (step->size) { - case REG_SCRIPT_SIZE_8: - return inb(step->reg); - case REG_SCRIPT_SIZE_16: - return inw(step->reg); - case REG_SCRIPT_SIZE_32: - return inl(step->reg); - } - return 0; -} - -static void reg_script_write_io(struct reg_script_context *ctx) -{ - const struct reg_script *step = reg_script_get_step(ctx); - - switch (step->size) { - case REG_SCRIPT_SIZE_8: - outb(step->value, step->reg); - break; - case REG_SCRIPT_SIZE_16: - outw(step->value, step->reg); - break; - case REG_SCRIPT_SIZE_32: - outl(step->value, step->reg); - break; - } -} - -static uint32_t reg_script_read_mmio(struct reg_script_context *ctx) -{ - const struct reg_script *step = reg_script_get_step(ctx); - - switch (step->size) { - case REG_SCRIPT_SIZE_8: - return read8(step->reg); - case REG_SCRIPT_SIZE_16: - return read16(step->reg); - case REG_SCRIPT_SIZE_32: - return read32(step->reg); - } - return 0; -} - -static void reg_script_write_mmio(struct reg_script_context *ctx) -{ - const struct reg_script *step = reg_script_get_step(ctx); - - switch (step->size) { - case REG_SCRIPT_SIZE_8: - write8(step->reg, step->value); - break; - case REG_SCRIPT_SIZE_16: - write16(step->reg, step->value); - break; - case REG_SCRIPT_SIZE_32: - write32(step->reg, step->value); - break; - } -} - -static uint32_t reg_script_read_res(struct reg_script_context *ctx) -{ - struct resource *res; - uint32_t val = 0; - const struct reg_script *step = reg_script_get_step(ctx); - - res = reg_script_get_resource(ctx); - - if (res == NULL) - return val; - - if (res->flags & IORESOURCE_IO) { - const struct reg_script io_step = { - .size = step->size, - .reg = res->base + step->reg, - }; - reg_script_set_step(ctx, &io_step); - val = reg_script_read_io(ctx); - } - else if (res->flags & IORESOURCE_MEM) { - const struct reg_script mmio_step = { - .size = step->size, - .reg = res->base + step->reg, - }; - reg_script_set_step(ctx, &mmio_step); - val = reg_script_read_mmio(ctx); - } - reg_script_set_step(ctx, step); - return val; -} - -static void reg_script_write_res(struct reg_script_context *ctx) -{ - struct resource *res; - const struct reg_script *step = reg_script_get_step(ctx); - - res = reg_script_get_resource(ctx); - - if (res == NULL) - return; - - if (res->flags & IORESOURCE_IO) { - const struct reg_script io_step = { - .size = step->size, - .reg = res->base + step->reg, - .value = step->value, - }; - reg_script_set_step(ctx, &io_step); - reg_script_write_io(ctx); - } - else if (res->flags & IORESOURCE_MEM) { - const struct reg_script mmio_step = { - .size = step->size, - .reg = res->base + step->reg, - .value = step->value, - }; - reg_script_set_step(ctx, &mmio_step); - reg_script_write_mmio(ctx); - } - reg_script_set_step(ctx, step); -} - -static uint32_t reg_script_read_iosf(struct reg_script_context *ctx) -{ -#if CONFIG_SOC_INTEL_BAYTRAIL - const struct reg_script *step = reg_script_get_step(ctx); - - switch (step->id) { - case IOSF_PORT_AUNIT: - return iosf_aunit_read(step->reg); - case IOSF_PORT_CPU_BUS: - return iosf_cpu_bus_read(step->reg); - case IOSF_PORT_BUNIT: - return iosf_bunit_read(step->reg); - case IOSF_PORT_DUNIT_CH0: - return iosf_dunit_ch0_read(step->reg); - case IOSF_PORT_PMC: - return iosf_punit_read(step->reg); - case IOSF_PORT_USBPHY: - return iosf_usbphy_read(step->reg); - case IOSF_PORT_SEC: - return iosf_sec_read(step->reg); - case IOSF_PORT_0x45: - return iosf_port45_read(step->reg); - case IOSF_PORT_0x46: - return iosf_port46_read(step->reg); - case IOSF_PORT_0x47: - return iosf_port47_read(step->reg); - case IOSF_PORT_SCORE: - return iosf_score_read(step->reg); - case IOSF_PORT_0x55: - return iosf_port55_read(step->reg); - case IOSF_PORT_0x58: - return iosf_port58_read(step->reg); - case IOSF_PORT_0x59: - return iosf_port59_read(step->reg); - case IOSF_PORT_0x5a: - return iosf_port5a_read(step->reg); - case IOSF_PORT_USHPHY: - return iosf_ushphy_read(step->reg); - case IOSF_PORT_SCC: - return iosf_scc_read(step->reg); - case IOSF_PORT_LPSS: - return iosf_lpss_read(step->reg); - case IOSF_PORT_0xa2: - return iosf_porta2_read(step->reg); - case IOSF_PORT_CCU: - return iosf_ccu_read(step->reg); - case IOSF_PORT_SSUS: - return iosf_ssus_read(step->reg); - default: - printk(BIOS_DEBUG, "No read support for IOSF port 0x%x.\n", - step->id); - break; - } -#endif - return 0; -} - -static void reg_script_write_iosf(struct reg_script_context *ctx) -{ -#if CONFIG_SOC_INTEL_BAYTRAIL - const struct reg_script *step = reg_script_get_step(ctx); - - switch (step->id) { - case IOSF_PORT_AUNIT: - iosf_aunit_write(step->reg, step->value); - break; - case IOSF_PORT_CPU_BUS: - iosf_cpu_bus_write(step->reg, step->value); - break; - case IOSF_PORT_BUNIT: - iosf_bunit_write(step->reg, step->value); - break; - case IOSF_PORT_DUNIT_CH0: - iosf_dunit_write(step->reg, step->value); - break; - case IOSF_PORT_PMC: - iosf_punit_write(step->reg, step->value); - break; - case IOSF_PORT_USBPHY: - iosf_usbphy_write(step->reg, step->value); - break; - case IOSF_PORT_SEC: - iosf_sec_write(step->reg, step->value); - break; - case IOSF_PORT_0x45: - iosf_port45_write(step->reg, step->value); - break; - case IOSF_PORT_0x46: - iosf_port46_write(step->reg, step->value); - break; - case IOSF_PORT_0x47: - iosf_port47_write(step->reg, step->value); - break; - case IOSF_PORT_SCORE: - iosf_score_write(step->reg, step->value); - break; - case IOSF_PORT_0x55: - iosf_port55_write(step->reg, step->value); - break; - case IOSF_PORT_0x58: - iosf_port58_write(step->reg, step->value); - break; - case IOSF_PORT_0x59: - iosf_port59_write(step->reg, step->value); - break; - case IOSF_PORT_0x5a: - iosf_port5a_write(step->reg, step->value); - break; - case IOSF_PORT_USHPHY: - iosf_ushphy_write(step->reg, step->value); - break; - case IOSF_PORT_SCC: - iosf_scc_write(step->reg, step->value); - break; - case IOSF_PORT_LPSS: - iosf_lpss_write(step->reg, step->value); - break; - case IOSF_PORT_0xa2: - iosf_porta2_write(step->reg, step->value); - break; - case IOSF_PORT_CCU: - iosf_ccu_write(step->reg, step->value); - break; - case IOSF_PORT_SSUS: - iosf_ssus_write(step->reg, step->value); - break; - default: - printk(BIOS_DEBUG, "No write support for IOSF port 0x%x.\n", - step->id); - break; - } -#endif -} - -static uint64_t reg_script_read_msr(struct reg_script_context *ctx) -{ -#if CONFIG_ARCH_X86 - const struct reg_script *step = reg_script_get_step(ctx); - msr_t msr = rdmsr(step->reg); - uint64_t value = msr.hi; - value = msr.hi; - value <<= 32; - value |= msr.lo; - return value; -#endif -} - -static void reg_script_write_msr(struct reg_script_context *ctx) -{ -#if CONFIG_ARCH_X86 - const struct reg_script *step = reg_script_get_step(ctx); - msr_t msr; - msr.hi = step->value >> 32; - msr.lo = step->value & 0xffffffff; - wrmsr(step->reg, msr); -#endif -} - -static uint64_t reg_script_read(struct reg_script_context *ctx) -{ - const struct reg_script *step = reg_script_get_step(ctx); - - switch (step->type) { - case REG_SCRIPT_TYPE_PCI: - return reg_script_read_pci(ctx); - case REG_SCRIPT_TYPE_IO: - return reg_script_read_io(ctx); - case REG_SCRIPT_TYPE_MMIO: - return reg_script_read_mmio(ctx); - case REG_SCRIPT_TYPE_RES: - return reg_script_read_res(ctx); - case REG_SCRIPT_TYPE_IOSF: - return reg_script_read_iosf(ctx); - case REG_SCRIPT_TYPE_MSR: - return reg_script_read_msr(ctx); - } - return 0; -} - -static void reg_script_write(struct reg_script_context *ctx) -{ - const struct reg_script *step = reg_script_get_step(ctx); - - switch (step->type) { - case REG_SCRIPT_TYPE_PCI: - reg_script_write_pci(ctx); - break; - case REG_SCRIPT_TYPE_IO: - reg_script_write_io(ctx); - break; - case REG_SCRIPT_TYPE_MMIO: - reg_script_write_mmio(ctx); - break; - case REG_SCRIPT_TYPE_RES: - reg_script_write_res(ctx); - break; - case REG_SCRIPT_TYPE_IOSF: - reg_script_write_iosf(ctx); - break; - case REG_SCRIPT_TYPE_MSR: - reg_script_write_msr(ctx); - break; - } -} - -static void reg_script_rmw(struct reg_script_context *ctx) -{ - uint64_t value; - const struct reg_script *step = reg_script_get_step(ctx); - struct reg_script write_step = *step; - - value = reg_script_read(ctx); - value &= step->mask; - value |= step->value; - write_step.value = value; - reg_script_set_step(ctx, &write_step); - reg_script_write(ctx); - reg_script_set_step(ctx, step); -} - -/* In order to easily chain scripts together handle the REG_SCRIPT_COMMAND_NEXT - * as recursive call with a new context that has the same dev and resource - * as the previous one. That will run to completion and then move on to the - * next step of the previous context. */ -static void reg_script_run_next(struct reg_script_context *ctx, - const struct reg_script *step); - - -static void reg_script_run_step(struct reg_script_context *ctx, - const struct reg_script *step) -{ - uint64_t value = 0, try; - - switch (step->command) { - case REG_SCRIPT_COMMAND_READ: - (void)reg_script_read(ctx); - break; - case REG_SCRIPT_COMMAND_WRITE: - reg_script_write(ctx); - break; - case REG_SCRIPT_COMMAND_RMW: - reg_script_rmw(ctx); - break; - case REG_SCRIPT_COMMAND_POLL: - for (try = 0; try < step->timeout; try += POLL_DELAY) { - value = reg_script_read(ctx) & step->mask; - if (value == step->value) - break; - udelay(POLL_DELAY); - } - if (try >= step->timeout) - printk(BIOS_WARNING, "%s: POLL timeout waiting for " - "0x%x to be 0x%lx, got 0x%lx\n", __func__, - step->reg, (unsigned long)step->value, - (unsigned long)value); - break; - case REG_SCRIPT_COMMAND_SET_DEV: - reg_script_set_dev(ctx, step->dev); - break; - case REG_SCRIPT_COMMAND_NEXT: - reg_script_run_next(ctx, step->next); - break; - default: - printk(BIOS_WARNING, "Invalid command: %08x\n", - step->command); - break; - } -} - -static void reg_script_run_with_context(struct reg_script_context *ctx) -{ - while (1) { - const struct reg_script *step = reg_script_get_step(ctx); - - if (step->command == REG_SCRIPT_COMMAND_END) - break; - - reg_script_run_step(ctx, step); - reg_script_set_step(ctx, step + 1); - } -} - -static void reg_script_run_next(struct reg_script_context *prev_ctx, - const struct reg_script *step) -{ - struct reg_script_context ctx; - - /* Use prev context as a basis but start at a new step. */ - ctx = *prev_ctx; - reg_script_set_step(&ctx, step); - reg_script_run_with_context(&ctx); -} - -void reg_script_run_on_dev(device_t dev, const struct reg_script *step) -{ - struct reg_script_context ctx; - - reg_script_set_dev(&ctx, dev); - reg_script_set_step(&ctx, step); - reg_script_run_with_context(&ctx); -} - -void reg_script_run(const struct reg_script *step) -{ - reg_script_run_on_dev(EMPTY_DEV, step); -} diff --git a/src/soc/intel/baytrail/Makefile.inc b/src/soc/intel/baytrail/Makefile.inc index d4f653e..886caf4 100644 --- a/src/soc/intel/baytrail/Makefile.inc +++ b/src/soc/intel/baytrail/Makefile.inc @@ -49,6 +49,7 @@ ramstage-y += perf_power.c ramstage-y += stage_cache.c romstage-y += stage_cache.c ramstage-$(CONFIG_ELOG) += elog.c +ramstage-y += reg_script.c
# Remove as ramstage gets fleshed out ramstage-y += placeholders.c diff --git a/src/soc/intel/baytrail/reg_script.c b/src/soc/intel/baytrail/reg_script.c new file mode 100644 index 0000000..78749fd --- /dev/null +++ b/src/soc/intel/baytrail/reg_script.c @@ -0,0 +1,538 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * 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 + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/io.h> +#include <console/console.h> +#include <delay.h> +#include <device/device.h> +#include <device/resource.h> +#include <device/pci.h> +#include <stdint.h> +#include <reg_script.h> + +#include <cpu/x86/msr.h> +#include <baytrail/iosf.h> + +#define POLL_DELAY 100 /* 100us */ +#if defined(__PRE_RAM__) +#define EMPTY_DEV 0 +#else +#define EMPTY_DEV NULL +#endif + +struct reg_script_context { + device_t dev; + struct resource *res; + const struct reg_script *step; +}; + +static inline void reg_script_set_dev(struct reg_script_context *ctx, + device_t dev) +{ + ctx->dev = dev; + ctx->res = NULL; +} + +static inline void reg_script_set_step(struct reg_script_context *ctx, + const struct reg_script *step) +{ + ctx->step = step; +} + +static inline const struct reg_script * +reg_script_get_step(struct reg_script_context *ctx) +{ + return ctx->step; +} + +static struct resource *reg_script_get_resource(struct reg_script_context *ctx) +{ +#if defined(__PRE_RAM__) + return NULL; +#else + struct resource *res; + const struct reg_script *step = reg_script_get_step(ctx); + + res = ctx->res; + + if (res != NULL && res->index == step->res_index) + return res; + + res = find_resource(ctx->dev, step->res_index); + ctx->res = res; + return res; +#endif +} + +static uint32_t reg_script_read_pci(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + + switch (step->size) { + case REG_SCRIPT_SIZE_8: + return pci_read_config8(ctx->dev, step->reg); + case REG_SCRIPT_SIZE_16: + return pci_read_config16(ctx->dev, step->reg); + case REG_SCRIPT_SIZE_32: + return pci_read_config32(ctx->dev, step->reg); + } + return 0; +} + +static void reg_script_write_pci(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + + switch (step->size) { + case REG_SCRIPT_SIZE_8: + pci_write_config8(ctx->dev, step->reg, step->value); + break; + case REG_SCRIPT_SIZE_16: + pci_write_config16(ctx->dev, step->reg, step->value); + break; + case REG_SCRIPT_SIZE_32: + pci_write_config32(ctx->dev, step->reg, step->value); + break; + } +} + +static uint32_t reg_script_read_io(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + + switch (step->size) { + case REG_SCRIPT_SIZE_8: + return inb(step->reg); + case REG_SCRIPT_SIZE_16: + return inw(step->reg); + case REG_SCRIPT_SIZE_32: + return inl(step->reg); + } + return 0; +} + +static void reg_script_write_io(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + + switch (step->size) { + case REG_SCRIPT_SIZE_8: + outb(step->value, step->reg); + break; + case REG_SCRIPT_SIZE_16: + outw(step->value, step->reg); + break; + case REG_SCRIPT_SIZE_32: + outl(step->value, step->reg); + break; + } +} + +static uint32_t reg_script_read_mmio(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + + switch (step->size) { + case REG_SCRIPT_SIZE_8: + return read8(step->reg); + case REG_SCRIPT_SIZE_16: + return read16(step->reg); + case REG_SCRIPT_SIZE_32: + return read32(step->reg); + } + return 0; +} + +static void reg_script_write_mmio(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + + switch (step->size) { + case REG_SCRIPT_SIZE_8: + write8(step->reg, step->value); + break; + case REG_SCRIPT_SIZE_16: + write16(step->reg, step->value); + break; + case REG_SCRIPT_SIZE_32: + write32(step->reg, step->value); + break; + } +} + +static uint32_t reg_script_read_res(struct reg_script_context *ctx) +{ + struct resource *res; + uint32_t val = 0; + const struct reg_script *step = reg_script_get_step(ctx); + + res = reg_script_get_resource(ctx); + + if (res == NULL) + return val; + + if (res->flags & IORESOURCE_IO) { + const struct reg_script io_step = { + .size = step->size, + .reg = res->base + step->reg, + }; + reg_script_set_step(ctx, &io_step); + val = reg_script_read_io(ctx); + } + else if (res->flags & IORESOURCE_MEM) { + const struct reg_script mmio_step = { + .size = step->size, + .reg = res->base + step->reg, + }; + reg_script_set_step(ctx, &mmio_step); + val = reg_script_read_mmio(ctx); + } + reg_script_set_step(ctx, step); + return val; +} + +static void reg_script_write_res(struct reg_script_context *ctx) +{ + struct resource *res; + const struct reg_script *step = reg_script_get_step(ctx); + + res = reg_script_get_resource(ctx); + + if (res == NULL) + return; + + if (res->flags & IORESOURCE_IO) { + const struct reg_script io_step = { + .size = step->size, + .reg = res->base + step->reg, + .value = step->value, + }; + reg_script_set_step(ctx, &io_step); + reg_script_write_io(ctx); + } + else if (res->flags & IORESOURCE_MEM) { + const struct reg_script mmio_step = { + .size = step->size, + .reg = res->base + step->reg, + .value = step->value, + }; + reg_script_set_step(ctx, &mmio_step); + reg_script_write_mmio(ctx); + } + reg_script_set_step(ctx, step); +} + +static uint32_t reg_script_read_iosf(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + + switch (step->id) { + case IOSF_PORT_AUNIT: + return iosf_aunit_read(step->reg); + case IOSF_PORT_CPU_BUS: + return iosf_cpu_bus_read(step->reg); + case IOSF_PORT_BUNIT: + return iosf_bunit_read(step->reg); + case IOSF_PORT_DUNIT_CH0: + return iosf_dunit_ch0_read(step->reg); + case IOSF_PORT_PMC: + return iosf_punit_read(step->reg); + case IOSF_PORT_USBPHY: + return iosf_usbphy_read(step->reg); + case IOSF_PORT_SEC: + return iosf_sec_read(step->reg); + case IOSF_PORT_0x45: + return iosf_port45_read(step->reg); + case IOSF_PORT_0x46: + return iosf_port46_read(step->reg); + case IOSF_PORT_0x47: + return iosf_port47_read(step->reg); + case IOSF_PORT_SCORE: + return iosf_score_read(step->reg); + case IOSF_PORT_0x55: + return iosf_port55_read(step->reg); + case IOSF_PORT_0x58: + return iosf_port58_read(step->reg); + case IOSF_PORT_0x59: + return iosf_port59_read(step->reg); + case IOSF_PORT_0x5a: + return iosf_port5a_read(step->reg); + case IOSF_PORT_USHPHY: + return iosf_ushphy_read(step->reg); + case IOSF_PORT_SCC: + return iosf_scc_read(step->reg); + case IOSF_PORT_LPSS: + return iosf_lpss_read(step->reg); + case IOSF_PORT_0xa2: + return iosf_porta2_read(step->reg); + case IOSF_PORT_CCU: + return iosf_ccu_read(step->reg); + case IOSF_PORT_SSUS: + return iosf_ssus_read(step->reg); + default: + printk(BIOS_DEBUG, "No read support for IOSF port 0x%x.\n", + step->id); + break; + } + return 0; +} + +static void reg_script_write_iosf(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + + switch (step->id) { + case IOSF_PORT_AUNIT: + iosf_aunit_write(step->reg, step->value); + break; + case IOSF_PORT_CPU_BUS: + iosf_cpu_bus_write(step->reg, step->value); + break; + case IOSF_PORT_BUNIT: + iosf_bunit_write(step->reg, step->value); + break; + case IOSF_PORT_DUNIT_CH0: + iosf_dunit_write(step->reg, step->value); + break; + case IOSF_PORT_PMC: + iosf_punit_write(step->reg, step->value); + break; + case IOSF_PORT_USBPHY: + iosf_usbphy_write(step->reg, step->value); + break; + case IOSF_PORT_SEC: + iosf_sec_write(step->reg, step->value); + break; + case IOSF_PORT_0x45: + iosf_port45_write(step->reg, step->value); + break; + case IOSF_PORT_0x46: + iosf_port46_write(step->reg, step->value); + break; + case IOSF_PORT_0x47: + iosf_port47_write(step->reg, step->value); + break; + case IOSF_PORT_SCORE: + iosf_score_write(step->reg, step->value); + break; + case IOSF_PORT_0x55: + iosf_port55_write(step->reg, step->value); + break; + case IOSF_PORT_0x58: + iosf_port58_write(step->reg, step->value); + break; + case IOSF_PORT_0x59: + iosf_port59_write(step->reg, step->value); + break; + case IOSF_PORT_0x5a: + iosf_port5a_write(step->reg, step->value); + break; + case IOSF_PORT_USHPHY: + iosf_ushphy_write(step->reg, step->value); + break; + case IOSF_PORT_SCC: + iosf_scc_write(step->reg, step->value); + break; + case IOSF_PORT_LPSS: + iosf_lpss_write(step->reg, step->value); + break; + case IOSF_PORT_0xa2: + iosf_porta2_write(step->reg, step->value); + break; + case IOSF_PORT_CCU: + iosf_ccu_write(step->reg, step->value); + break; + case IOSF_PORT_SSUS: + iosf_ssus_write(step->reg, step->value); + break; + default: + printk(BIOS_DEBUG, "No write support for IOSF port 0x%x.\n", + step->id); + break; + } +} + +static uint64_t reg_script_read_msr(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + msr_t msr = rdmsr(step->reg); + uint64_t value = msr.hi; + value = msr.hi; + value <<= 32; + value |= msr.lo; + return value; +} + +static void reg_script_write_msr(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + msr_t msr; + msr.hi = step->value >> 32; + msr.lo = step->value & 0xffffffff; + wrmsr(step->reg, msr); +} + +static uint64_t reg_script_read(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + + switch (step->type) { + case REG_SCRIPT_TYPE_PCI: + return reg_script_read_pci(ctx); + case REG_SCRIPT_TYPE_IO: + return reg_script_read_io(ctx); + case REG_SCRIPT_TYPE_MMIO: + return reg_script_read_mmio(ctx); + case REG_SCRIPT_TYPE_RES: + return reg_script_read_res(ctx); + case REG_SCRIPT_TYPE_IOSF: + return reg_script_read_iosf(ctx); + case REG_SCRIPT_TYPE_MSR: + return reg_script_read_msr(ctx); + } + return 0; +} + +static void reg_script_write(struct reg_script_context *ctx) +{ + const struct reg_script *step = reg_script_get_step(ctx); + + switch (step->type) { + case REG_SCRIPT_TYPE_PCI: + reg_script_write_pci(ctx); + break; + case REG_SCRIPT_TYPE_IO: + reg_script_write_io(ctx); + break; + case REG_SCRIPT_TYPE_MMIO: + reg_script_write_mmio(ctx); + break; + case REG_SCRIPT_TYPE_RES: + reg_script_write_res(ctx); + break; + case REG_SCRIPT_TYPE_IOSF: + reg_script_write_iosf(ctx); + break; + case REG_SCRIPT_TYPE_MSR: + reg_script_write_msr(ctx); + break; + } +} + +static void reg_script_rmw(struct reg_script_context *ctx) +{ + uint64_t value; + const struct reg_script *step = reg_script_get_step(ctx); + struct reg_script write_step = *step; + + value = reg_script_read(ctx); + value &= step->mask; + value |= step->value; + write_step.value = value; + reg_script_set_step(ctx, &write_step); + reg_script_write(ctx); + reg_script_set_step(ctx, step); +} + +/* In order to easily chain scripts together handle the REG_SCRIPT_COMMAND_NEXT + * as recursive call with a new context that has the same dev and resource + * as the previous one. That will run to completion and then move on to the + * next step of the previous context. */ +static void reg_script_run_next(struct reg_script_context *ctx, + const struct reg_script *step); + + +static void reg_script_run_step(struct reg_script_context *ctx, + const struct reg_script *step) +{ + uint64_t value = 0, try; + + switch (step->command) { + case REG_SCRIPT_COMMAND_READ: + (void)reg_script_read(ctx); + break; + case REG_SCRIPT_COMMAND_WRITE: + reg_script_write(ctx); + break; + case REG_SCRIPT_COMMAND_RMW: + reg_script_rmw(ctx); + break; + case REG_SCRIPT_COMMAND_POLL: + for (try = 0; try < step->timeout; try += POLL_DELAY) { + value = reg_script_read(ctx) & step->mask; + if (value == step->value) + break; + udelay(POLL_DELAY); + } + if (try >= step->timeout) + printk(BIOS_WARNING, "%s: POLL timeout waiting for " + "0x%x to be 0x%lx, got 0x%lx\n", __func__, + step->reg, (unsigned long)step->value, + (unsigned long)value); + break; + case REG_SCRIPT_COMMAND_SET_DEV: + reg_script_set_dev(ctx, step->dev); + break; + case REG_SCRIPT_COMMAND_NEXT: + reg_script_run_next(ctx, step->next); + break; + default: + printk(BIOS_WARNING, "Invalid command: %08x\n", + step->command); + break; + } +} + +static void reg_script_run_with_context(struct reg_script_context *ctx) +{ + while (1) { + const struct reg_script *step = reg_script_get_step(ctx); + + if (step->command == REG_SCRIPT_COMMAND_END) + break; + + reg_script_run_step(ctx, step); + reg_script_set_step(ctx, step + 1); + } +} + +static void reg_script_run_next(struct reg_script_context *prev_ctx, + const struct reg_script *step) +{ + struct reg_script_context ctx; + + /* Use prev context as a basis but start at a new step. */ + ctx = *prev_ctx; + reg_script_set_step(&ctx, step); + reg_script_run_with_context(&ctx); +} + +void reg_script_run_on_dev(device_t dev, const struct reg_script *step) +{ + struct reg_script_context ctx; + + reg_script_set_dev(&ctx, dev); + reg_script_set_step(&ctx, step); + reg_script_run_with_context(&ctx); +} + +void reg_script_run(const struct reg_script *step) +{ + reg_script_run_on_dev(EMPTY_DEV, step); +} diff --git a/src/soc/intel/baytrail/reg_script.h b/src/soc/intel/baytrail/reg_script.h new file mode 100644 index 0000000..72e1e96 --- /dev/null +++ b/src/soc/intel/baytrail/reg_script.h @@ -0,0 +1,339 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * 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 + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef REG_SCRIPT_H +#define REG_SCRIPT_H + +#include <stdint.h> +#include <arch/io.h> +#include <device/device.h> +#include <device/resource.h> + +/* + * The reg script library is a way to provide data-driven I/O accesses for + * initializing devices. It currently supports PCI, legacy I/O, + * memory-mapped I/O, and IOSF accesses. + * + * In order to simplify things for the developer the following features + * are employed: + * - Chaining of tables that allow runtime tables to chain to compile-time + * tables. + * - Notion of current device (device_t) being worked on. This allows for + * PCI config, io, and mmio on a particular device's resources. + * + * Note that when using REG_SCRIPT_COMMAND_NEXT there is an implicit push + * and pop of the context. A chained reg_script inherits the previous + * context (such as current device), but it does not impact the previous + * context in any way. + */ + +enum { + REG_SCRIPT_COMMAND_READ, + REG_SCRIPT_COMMAND_WRITE, + REG_SCRIPT_COMMAND_RMW, + REG_SCRIPT_COMMAND_POLL, + REG_SCRIPT_COMMAND_SET_DEV, + REG_SCRIPT_COMMAND_NEXT, + REG_SCRIPT_COMMAND_END, +}; + +enum { + REG_SCRIPT_TYPE_PCI, + REG_SCRIPT_TYPE_IO, + REG_SCRIPT_TYPE_MMIO, + REG_SCRIPT_TYPE_RES, + REG_SCRIPT_TYPE_IOSF, + REG_SCRIPT_TYPE_MSR, +}; + +enum { + REG_SCRIPT_SIZE_8, + REG_SCRIPT_SIZE_16, + REG_SCRIPT_SIZE_32, + REG_SCRIPT_SIZE_64, +}; + +struct reg_script { + uint32_t command; + uint32_t type; + uint32_t size; + uint32_t reg; + uint64_t mask; + uint64_t value; + uint32_t timeout; + union { + uint32_t id; + const struct reg_script *next; + device_t dev; + unsigned int res_index; + }; +}; + +/* Internal helper Macros. */ + +#define _REG_SCRIPT_ENCODE_RAW(cmd_, type_, size_, reg_, \ + mask_, value_, timeout_, id_) \ + { .command = cmd_, \ + .type = type_, \ + .size = size_, \ + .reg = reg_, \ + .mask = mask_, \ + .value = value_, \ + .timeout = timeout_, \ + .id = id_, \ + } + +#define _REG_SCRIPT_ENCODE_RES(cmd_, type_, res_index_, size_, reg_, \ + mask_, value_, timeout_) \ + { .command = cmd_, \ + .type = type_, \ + .size = size_, \ + .reg = reg_, \ + .mask = mask_, \ + .value = value_, \ + .timeout = timeout_, \ + .res_index = res_index_, \ + } + +/* + * PCI + */ + +#define REG_SCRIPT_PCI(cmd_, bits_, reg_, mask_, value_, timeout_) \ + _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_##cmd_, \ + REG_SCRIPT_TYPE_PCI, \ + REG_SCRIPT_SIZE_##bits_, \ + reg_, mask_, value_, timeout_, 0) +#define REG_PCI_READ8(reg_) \ + REG_SCRIPT_PCI(READ, 8, reg_, 0, 0, 0) +#define REG_PCI_READ16(reg_) \ + REG_SCRIPT_PCI(READ, 16, reg_, 0, 0, 0) +#define REG_PCI_READ32(reg_) \ + REG_SCRIPT_PCI(READ, 32, reg_, 0, 0, 0) +#define REG_PCI_WRITE8(reg_, value_) \ + REG_SCRIPT_PCI(WRITE, 8, reg_, 0, value_, 0) +#define REG_PCI_WRITE16(reg_, value_) \ + REG_SCRIPT_PCI(WRITE, 16, reg_, 0, value_, 0) +#define REG_PCI_WRITE32(reg_, value_) \ + REG_SCRIPT_PCI(WRITE, 32, reg_, 0, value_, 0) +#define REG_PCI_RMW8(reg_, mask_, value_) \ + REG_SCRIPT_PCI(RMW, 8, reg_, mask_, value_, 0) +#define REG_PCI_RMW16(reg_, mask_, value_) \ + REG_SCRIPT_PCI(RMW, 16, reg_, mask_, value_, 0) +#define REG_PCI_RMW32(reg_, mask_, value_) \ + REG_SCRIPT_PCI(RMW, 32, reg_, mask_, value_, 0) +#define REG_PCI_OR8(reg_, value_) \ + REG_SCRIPT_PCI(RMW, 8, reg_, 0xff, value_, 0) +#define REG_PCI_OR16(reg_, value_) \ + REG_SCRIPT_PCI(RMW, 16, reg_, 0xffff, value_, 0) +#define REG_PCI_OR32(reg_, value_) \ + REG_SCRIPT_PCI(RMW, 32, reg_, 0xffffffff, value_, 0) +#define REG_PCI_POLL8(reg_, mask_, value_, timeout_) \ + REG_SCRIPT_PCI(POLL, 8, reg_, mask_, value_, timeout_) +#define REG_PCI_POLL16(reg_, mask_, value_, timeout_) \ + REG_SCRIPT_PCI(POLL, 16, reg_, mask_, value_, timeout_) +#define REG_PCI_POLL32(reg_, mask_, value_, timeout_) \ + REG_SCRIPT_PCI(POLL, 32, reg_, mask_, value_, timeout_) + +/* + * Legacy IO + */ + +#define REG_SCRIPT_IO(cmd_, bits_, reg_, mask_, value_, timeout_) \ + _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_##cmd_, \ + REG_SCRIPT_TYPE_IO, \ + REG_SCRIPT_SIZE_##bits_, \ + reg_, mask_, value_, timeout_, 0) +#define REG_IO_READ8(reg_) \ + REG_SCRIPT_IO(READ, 8, reg_, 0, 0, 0) +#define REG_IO_READ16(reg_) \ + REG_SCRIPT_IO(READ, 16, reg_, 0, 0, 0) +#define REG_IO_READ32(reg_) \ + REG_SCRIPT_IO(READ, 32, reg_, 0, 0, 0) +#define REG_IO_WRITE8(reg_, value_) \ + REG_SCRIPT_IO(WRITE, 8, reg_, 0, value_, 0) +#define REG_IO_WRITE16(reg_, value_) \ + REG_SCRIPT_IO(WRITE, 16, reg_, 0, value_, 0) +#define REG_IO_WRITE32(reg_, value_) \ + REG_SCRIPT_IO(WRITE, 32, reg_, 0, value_, 0) +#define REG_IO_RMW8(reg_, mask_, value_) \ + REG_SCRIPT_IO(RMW, 8, reg_, mask_, value_, 0) +#define REG_IO_RMW16(reg_, mask_, value_) \ + REG_SCRIPT_IO(RMW, 16, reg_, mask_, value_, 0) +#define REG_IO_RMW32(reg_, mask_, value_) \ + REG_SCRIPT_IO(RMW, 32, reg_, mask_, value_, 0) +#define REG_IO_OR8(reg_, value_) \ + REG_SCRIPT_IO_RMW8(_reg, 0xff, value) +#define REG_IO_OR16(reg_, value_) \ + REG_SCRIPT_IO_RMW16(_reg, 0xffff, value) +#define REG_IO_OR32(reg_, value_) \ + REG_SCRIPT_IO_RMW32(_reg, 0xffffffff, value) +#define REG_IO_POLL8(reg_, mask_, value_, timeout_) \ + REG_SCRIPT_IO(POLL, 8, reg_, mask_, value_, timeout_) +#define REG_IO_POLL16(reg_, mask_, value_, timeout_) \ + REG_SCRIPT_IO(POLL, 16, reg_, mask_, value_, timeout_) +#define REG_IO_POLL32(reg_, mask_, value_, timeout_) \ + REG_SCRIPT_IO(POLL, 32, reg_, mask_, value_, timeout_) + +/* + * Memory Mapped IO + */ + +#define REG_SCRIPT_MMIO(cmd_, bits_, reg_, mask_, value_, timeout_) \ + _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_##cmd_, \ + REG_SCRIPT_TYPE_MMIO, \ + REG_SCRIPT_SIZE_##bits_, \ + reg_, mask_, value_, timeout_, 0) +#define REG_MMIO_READ8(reg_) \ + REG_SCRIPT_MMIO(READ, 8, reg_, 0, 0, 0) +#define REG_MMIO_READ16(reg_) \ + REG_SCRIPT_MMIO(READ, 16, reg_, 0, 0, 0) +#define REG_MMIO_READ32(reg_) \ + REG_SCRIPT_MMIO(READ, 32, reg_, 0, 0, 0) +#define REG_MMIO_WRITE8(reg_, value_) \ + REG_SCRIPT_MMIO(WRITE, 8, reg_, 0, value_, 0) +#define REG_MMIO_WRITE16(reg_, value_) \ + REG_SCRIPT_MMIO(WRITE, 16, reg_, 0, value_, 0) +#define REG_MMIO_WRITE32(reg_, value_) \ + REG_SCRIPT_MMIO(WRITE, 32, reg_, 0, value_, 0) +#define REG_MMIO_RMW8(reg_, mask_, value_) \ + REG_SCRIPT_MMIO(RMW, 8, reg_, mask_, value_, 0) +#define REG_MMIO_RMW16(reg_, mask_, value_) \ + REG_SCRIPT_MMIO(RMW, 16, reg_, mask_, value_, 0) +#define REG_MMIO_RMW32(reg_, mask_, value_) \ + REG_SCRIPT_MMIO(RMW, 32, reg_, mask_, value_, 0) +#define REG_MMIO_OR8(reg_, value_) \ + REG_MMIO_RMW8(reg_, 0xff, value_) +#define REG_MMIO_OR16(reg_, value_) \ + REG_MMIO_RMW16(reg_, 0xffff, value_) +#define REG_MMIO_OR32(reg_, value_) \ + REG_MMIO_RMW32(reg_, 0xffffffff, value_) +#define REG_MMIO_POLL8(reg_, mask_, value_, timeout_) \ + REG_SCRIPT_MMIO(POLL, 8, reg_, mask_, value_, timeout_) +#define REG_MMIO_POLL16(reg_, mask_, value_, timeout_) \ + REG_SCRIPT_MMIO(POLL, 16, reg_, mask_, value_, timeout_) +#define REG_MMIO_POLL32(reg_, mask_, value_, timeout_) \ + REG_SCRIPT_MMIO(POLL, 32, reg_, mask_, value_, timeout_) + +/* + * Access through a device's resource such as a Base Address Register (BAR) + */ + +#define REG_SCRIPT_RES(cmd_, bits_, bar_, reg_, mask_, value_, timeout_) \ + _REG_SCRIPT_ENCODE_RES(REG_SCRIPT_COMMAND_##cmd_, \ + REG_SCRIPT_TYPE_RES, bar_, \ + REG_SCRIPT_SIZE_##bits_, \ + reg_, mask_, value_, timeout_) +#define REG_RES_READ8(bar_, reg_) \ + REG_SCRIPT_RES(READ, 8, bar_, reg_, 0, 0, 0) +#define REG_RES_READ16(bar_, reg_) \ + REG_SCRIPT_RES(READ, 16, bar_, reg_, 0, 0, 0) +#define REG_RES_READ32(bar_, reg_) \ + REG_SCRIPT_RES(READ, 32, bar_, reg_, 0, 0, 0) +#define REG_RES_WRITE8(bar_, reg_, value_) \ + REG_SCRIPT_RES(WRITE, 8, bar_, reg_, 0, value_, 0) +#define REG_RES_WRITE16(bar_, reg_, value_) \ + REG_SCRIPT_RES(WRITE, 16, bar_, reg_, 0, value_, 0) +#define REG_RES_WRITE32(bar_, reg_, value_) \ + REG_SCRIPT_RES(WRITE, 32, bar_, reg_, 0, value_, 0) +#define REG_RES_RMW8(bar_, reg_, mask_, value_) \ + REG_SCRIPT_RES(RMW, 8, bar_, reg_, mask_, value_, 0) +#define REG_RES_RMW16(bar_, reg_, mask_, value_) \ + REG_SCRIPT_RES(RMW, 16, bar_, reg_, mask_, value_, 0) +#define REG_RES_RMW32(bar_, reg_, mask_, value_) \ + REG_SCRIPT_RES(RMW, 32, bar_, reg_, mask_, value_, 0) +#define REG_RES_OR8(bar_, reg_, value_) \ + REG_RES_RMW8(bar_, reg_, 0xff, value_) +#define REG_RES_OR16(bar_, reg_, value_) \ + REG_RES_RMW16(bar_, reg_, 0xffff, value_) +#define REG_RES_OR32(bar_, reg_, value_) \ + REG_RES_RMW32(bar_, reg_, 0xffffffff, value_) +#define REG_RES_POLL8(bar_, reg_, mask_, value_, timeout_) \ + REG_SCRIPT_RES(POLL, 8, bar_, reg_, mask_, value_, timeout_) +#define REG_RES_POLL16(bar_, reg_, mask_, value_, timeout_) \ + REG_SCRIPT_RES(POLL, 16, bar_, reg_, mask_, value_, timeout_) +#define REG_RES_POLL32(bar_, reg_, mask_, value_, timeout_) \ + REG_SCRIPT_RES(POLL, 32, bar_, reg_, mask_, value_, timeout_) + +/* + * IO Sideband Function + */ + +#define REG_SCRIPT_IOSF(cmd_, unit_, reg_, mask_, value_, timeout_) \ + _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_##cmd_, \ + REG_SCRIPT_TYPE_IOSF, \ + REG_SCRIPT_SIZE_32, \ + reg_, mask_, value_, timeout_, unit_) +#define REG_IOSF_READ(unit_, reg_) \ + REG_SCRIPT_IOSF(READ, unit_, reg_, 0, 0, 0) +#define REG_IOSF_WRITE(unit_, reg_, value_) \ + REG_SCRIPT_IOSF(WRITE, unit_, reg_, 0, value_, 0) +#define REG_IOSF_RMW(unit_, reg_, mask_, value_) \ + REG_SCRIPT_IOSF(RMW, unit_, reg_, mask_, value_, 0) +#define REG_IOSF_OR(unit_, reg_, value_) \ + REG_IOSF_RMW(unit_, reg_, 0xffffffff, value_) +#define REG_IOSF_POLL(unit_, reg_, mask_, value_, timeout_) \ + REG_SCRIPT_IOSF(POLL, unit_, reg_, mask_, value_, timeout_) + +/* + * CPU Model Specific Register + */ + +#define REG_SCRIPT_MSR(cmd_, reg_, mask_, value_, timeout_) \ + _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_##cmd_, \ + REG_SCRIPT_TYPE_MSR, \ + REG_SCRIPT_SIZE_64, \ + reg_, mask_, value_, timeout_, 0) +#define REG_MSR_READ(reg_) \ + REG_SCRIPT_MSR(READ, reg_, 0, 0, 0) +#define REG_MSR_WRITE(reg_, value_) \ + REG_SCRIPT_MSR(WRITE, reg_, 0, value_, 0) +#define REG_MSR_RMW(reg_, mask_, value_) \ + REG_SCRIPT_MSR(RMW, reg_, mask_, value_, 0) +#define REG_MSR_OR(reg_, value_) \ + REG_MSR_RMW(reg_, -1ULL, value_) +#define REG_MSR_POLL(reg_, mask_, value_, timeout_) \ + REG_SCRIPT_MSR(POLL, reg_, mask_, value_, timeout_) + +/* + * Chain to another table. + */ +#define REG_SCRIPT_NEXT(next_) \ + { .command = REG_SCRIPT_COMMAND_NEXT, \ + .next = next_, \ + } + +/* + * Set current device + */ +#define REG_SCRIPT_SET_DEV(dev_) \ + { .command = REG_SCRIPT_COMMAND_SET_DEV, \ + .dev = dev_, \ + } + +/* + * Last script entry. All tables need to end with REG_SCRIPT_END. + */ +#define REG_SCRIPT_END \ + _REG_SCRIPT_ENCODE_RAW(REG_SCRIPT_COMMAND_END, 0, 0, 0, 0, 0, 0, 0) + +void reg_script_run(const struct reg_script *script); +void reg_script_run_on_dev(device_t dev, const struct reg_script *step); + +#endif /* REG_SCRIPT_H */ diff --git a/src/soc/intel/fsp_baytrail/Kconfig b/src/soc/intel/fsp_baytrail/Kconfig index cb4757b..c2b747c 100644 --- a/src/soc/intel/fsp_baytrail/Kconfig +++ b/src/soc/intel/fsp_baytrail/Kconfig @@ -36,7 +36,6 @@ config CPU_SPECIFIC_OPTIONS select MMCONF_SUPPORT_DEFAULT select RELOCATABLE_MODULES select PARALLEL_MP - select REG_SCRIPT select SMP select SPI_FLASH select SSE2