Patch set updated for coreboot: da2e348 soc/samsung/exynos: Layout common code framework
Edward O'Callaghan (eocallaghan@alterapraxis.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/7929
-gerrit
commit da2e3485107a42283b2b3cd34e0e26507e371e9b Author: Edward O'Callaghan eocallaghan@alterapraxis.com Date: Fri Dec 26 13:58:56 2014 +1100
soc/samsung/exynos: Layout common code framework
Layout the framework to merge common components between Exynos families.
Change-Id: Ic8896e791dac9757c2bd19f390d0a5821f96fc06 Signed-off-by: Edward O'Callaghan eocallaghan@alterapraxis.com --- src/soc/samsung/Kconfig | 1 + src/soc/samsung/Makefile.inc | 1 + src/soc/samsung/exynos/Kconfig | 11 ++++++ src/soc/samsung/exynos/Makefile.inc | 19 ++++++++++ src/soc/samsung/exynos/bootblock.c | 55 +++++++++++++++++++++++++++ src/soc/samsung/exynos/cbmem.c | 27 +++++++++++++ src/soc/samsung/exynos/mct.c | 36 ++++++++++++++++++ src/soc/samsung/exynos/monotonic_timer.c | 34 +++++++++++++++++ src/soc/samsung/exynos/wakeup.c | 57 ++++++++++++++++++++++++++++ src/soc/samsung/exynos/wakeup.h | 43 +++++++++++++++++++++ src/soc/samsung/exynos5250/Kconfig | 8 +--- src/soc/samsung/exynos5250/Makefile.inc | 14 ++----- src/soc/samsung/exynos5250/bootblock.c | 55 --------------------------- src/soc/samsung/exynos5250/cbmem.c | 27 ------------- src/soc/samsung/exynos5250/mct.c | 36 ------------------ src/soc/samsung/exynos5250/monotonic_timer.c | 34 ----------------- src/soc/samsung/exynos5250/wakeup.c | 57 ---------------------------- src/soc/samsung/exynos5250/wakeup.h | 43 --------------------- src/soc/samsung/exynos5420/Kconfig | 9 +---- src/soc/samsung/exynos5420/Makefile.inc | 14 ++----- src/soc/samsung/exynos5420/bootblock.c | 55 --------------------------- src/soc/samsung/exynos5420/cbmem.c | 27 ------------- src/soc/samsung/exynos5420/mct.c | 36 ------------------ src/soc/samsung/exynos5420/monotonic_timer.c | 34 ----------------- src/soc/samsung/exynos5420/wakeup.c | 57 ---------------------------- src/soc/samsung/exynos5420/wakeup.h | 43 --------------------- 26 files changed, 292 insertions(+), 541 deletions(-)
diff --git a/src/soc/samsung/Kconfig b/src/soc/samsung/Kconfig index 9241d27..8bb0aa2 100644 --- a/src/soc/samsung/Kconfig +++ b/src/soc/samsung/Kconfig @@ -1,2 +1,3 @@ +source src/soc/samsung/exynos/Kconfig source src/soc/samsung/exynos5250/Kconfig source src/soc/samsung/exynos5420/Kconfig diff --git a/src/soc/samsung/Makefile.inc b/src/soc/samsung/Makefile.inc index 496b5f7..7a4123f 100644 --- a/src/soc/samsung/Makefile.inc +++ b/src/soc/samsung/Makefile.inc @@ -1,2 +1,3 @@ +subdirs-$(CONFIG_CPU_SAMSUNG_EXYNOS) += exynos subdirs-$(CONFIG_CPU_SAMSUNG_EXYNOS5250) += exynos5250 subdirs-$(CONFIG_CPU_SAMSUNG_EXYNOS5420) += exynos5420 diff --git a/src/soc/samsung/exynos/Kconfig b/src/soc/samsung/exynos/Kconfig new file mode 100644 index 0000000..63f1a45 --- /dev/null +++ b/src/soc/samsung/exynos/Kconfig @@ -0,0 +1,11 @@ +config CPU_SAMSUNG_EXYNOS + select ARCH_BOOTBLOCK_ARMV7 + select ARCH_ROMSTAGE_ARMV7 + select ARCH_RAMSTAGE_ARMV7 + select CPU_HAS_BOOTBLOCK_INIT + select HAVE_MONOTONIC_TIMER + select HAVE_UART_SPECIAL + select RELOCATABLE_MODULES + select DYNAMIC_CBMEM + bool + default n diff --git a/src/soc/samsung/exynos/Makefile.inc b/src/soc/samsung/exynos/Makefile.inc new file mode 100644 index 0000000..490c816 --- /dev/null +++ b/src/soc/samsung/exynos/Makefile.inc @@ -0,0 +1,19 @@ +bootblock-y += bootblock.c +bootblock-y += mct.c +##bootblock-y += mct.c power.c +bootblock-y += wakeup.c + +# Clock is required for UART +bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += monotonic_timer.c + +romstage-y += mct.c +romstage-y += monotonic_timer.c +romstage-y += cbmem.c +#romstage-y += power.c +romstage-y += wakeup.c + +ramstage-y += mct.c +ramstage-y += monotonic_timer.c +ramstage-y += cbmem.c +#ramstage-y += power.c +#ramstage-y += usb.c diff --git a/src/soc/samsung/exynos/bootblock.c b/src/soc/samsung/exynos/bootblock.c new file mode 100644 index 0000000..5d2d2b7 --- /dev/null +++ b/src/soc/samsung/exynos/bootblock.c @@ -0,0 +1,55 @@ +/* + * 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 <bootblock_common.h> +#include <arch/cache.h> + +#include "clk.h" +#include "wakeup.h" +#include "cpu.h" + +/* convenient shorthand (in MB) */ +#define SRAM_START (EXYNOS5_SRAM_BASE >> 20) +#define SRAM_SIZE 1 +#define SRAM_END (SRAM_START + SRAM_SIZE) /* plus one... */ + +void bootblock_cpu_init(void) +{ + /* kick off the multi-core timer. + * We want to do this as early as we can. + */ + mct_start(); + + if (get_wakeup_state() == WAKEUP_DIRECT) { + wakeup(); + /* Never returns. */ + } + + /* set up dcache and MMU */ + mmu_init(); + mmu_disable_range(0, SRAM_START); + mmu_config_range(SRAM_START, SRAM_SIZE, DCACHE_WRITEBACK); + mmu_config_range(SRAM_END, 4096 - SRAM_END, DCACHE_OFF); + dcache_mmu_enable(); + + /* For most ARM systems, we have to initialize firmware media source + * (ex, SPI, SD/MMC, or eMMC) now; but for Exynos platform, that is + * already handled by iROM so there's no need to setup again. + */ +} diff --git a/src/soc/samsung/exynos/cbmem.c b/src/soc/samsung/exynos/cbmem.c new file mode 100644 index 0000000..4650320 --- /dev/null +++ b/src/soc/samsung/exynos/cbmem.c @@ -0,0 +1,27 @@ +/* + * 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 <stddef.h> +#include <cbmem.h> +#include "cpu.h" + +void *cbmem_top(void) +{ + return (void *)(get_fb_base_kb() * KiB); +} diff --git a/src/soc/samsung/exynos/mct.c b/src/soc/samsung/exynos/mct.c new file mode 100644 index 0000000..bbb90e4 --- /dev/null +++ b/src/soc/samsung/exynos/mct.c @@ -0,0 +1,36 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2012 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 <stdint.h> +#include <arch/io.h> +#include "clk.h" + +uint64_t mct_raw_value(void) +{ + uint64_t upper = readl(&exynos_mct->g_cnt_u); + uint64_t lower = readl(&exynos_mct->g_cnt_l); + + return (upper << 32) | lower; +} + +void mct_start(void) +{ + writel(readl(&exynos_mct->g_tcon) | (0x1 << 8), + &exynos_mct->g_tcon); +} diff --git a/src/soc/samsung/exynos/monotonic_timer.c b/src/soc/samsung/exynos/monotonic_timer.c new file mode 100644 index 0000000..89ac416 --- /dev/null +++ b/src/soc/samsung/exynos/monotonic_timer.c @@ -0,0 +1,34 @@ +/* + * 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 <stdint.h> +#include <timer.h> + +#include "clk.h" + +static const uint32_t clocks_per_usec = MCT_HZ/1000000; + +void timer_monotonic_get(struct mono_time *mt) +{ + /* We don't have to call mct_start() here + * because it was already called in the bootblock + */ + + mono_time_set_usecs(mt, mct_raw_value() / clocks_per_usec); +} diff --git a/src/soc/samsung/exynos/wakeup.c b/src/soc/samsung/exynos/wakeup.c new file mode 100644 index 0000000..a240717 --- /dev/null +++ b/src/soc/samsung/exynos/wakeup.c @@ -0,0 +1,57 @@ +/* + * 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/cache.h> +#include <console/console.h> +#include "power.h" +#include "wakeup.h" + +void wakeup(void) +{ + if (wakeup_need_reset()) + power_reset(); + + power_init(); /* Ensure ps_hold_setup() for early wakeup. */ + dcache_mmu_disable(); + power_exit_wakeup(); + /* Should never return. If we do, reset. */ + power_reset(); +} + +int get_wakeup_state(void) +{ + uint32_t status = power_read_reset_status(); + + /* DIDLE/LPA can be resumed without clock reset (ex, bootblock), + * and SLEEP requires resetting clock (should be done in ROM stage). + */ + + if (status == S5P_CHECK_DIDLE || status == S5P_CHECK_LPA) + return WAKEUP_DIRECT; + + if (status == S5P_CHECK_SLEEP) + return WAKEUP_NEED_CLOCK_RESET; + + return IS_NOT_WAKEUP; +} + +void wakeup_enable_uart(void) +{ + power_release_uart_retention(); +} diff --git a/src/soc/samsung/exynos/wakeup.h b/src/soc/samsung/exynos/wakeup.h new file mode 100644 index 0000000..91025c3 --- /dev/null +++ b/src/soc/samsung/exynos/wakeup.h @@ -0,0 +1,43 @@ +/* + * 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 CPU_SAMSUNG_EXYNOS_WAKEUP_H +#define CPU_SAMSUNG_EXYNOS_WAKEUP_H + +/* Power Down Modes */ +#define S5P_CHECK_SLEEP 0x00000BAD +#define S5P_CHECK_DIDLE 0xBAD00000 +#define S5P_CHECK_LPA 0xABAD0000 + +enum { + // A normal boot (not suspend/resume) + IS_NOT_WAKEUP, + // A wake up event that can be resumed any time + WAKEUP_DIRECT, + // A wake up event that must be resumed only after + // clock and memory controllers are re-initialized + WAKEUP_NEED_CLOCK_RESET, +}; + +int wakeup_need_reset(void); +int get_wakeup_state(void); +void wakeup(void); +void wakeup_enable_uart(void); + +#endif /* CPU_SAMSUNG_EXYNOS_WAKEUP_H */ diff --git a/src/soc/samsung/exynos5250/Kconfig b/src/soc/samsung/exynos5250/Kconfig index 8d7c867..2193126 100644 --- a/src/soc/samsung/exynos5250/Kconfig +++ b/src/soc/samsung/exynos5250/Kconfig @@ -1,13 +1,7 @@ config CPU_SAMSUNG_EXYNOS5250 - select ARCH_BOOTBLOCK_ARMV7 - select ARCH_ROMSTAGE_ARMV7 - select ARCH_RAMSTAGE_ARMV7 - select CPU_HAS_BOOTBLOCK_INIT - select HAVE_MONOTONIC_TIMER - select HAVE_UART_SPECIAL - select DYNAMIC_CBMEM bool default n + select CPU_SAMSUNG_EXYNOS
if CPU_SAMSUNG_EXYNOS5250
diff --git a/src/soc/samsung/exynos5250/Makefile.inc b/src/soc/samsung/exynos5250/Makefile.inc index 735ce2e..cce65e5 100644 --- a/src/soc/samsung/exynos5250/Makefile.inc +++ b/src/soc/samsung/exynos5250/Makefile.inc @@ -1,14 +1,11 @@ bootblock-y += spi.c alternate_cbfs.c -bootblock-y += bootblock.c -bootblock-y += pinmux.c mct.c power.c +bootblock-y += pinmux.c power.c # Clock is required for UART bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock_init.c bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock.c -bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += monotonic_timer.c ifeq ($(CONFIG_DRIVERS_UART),y) bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += uart.c endif -bootblock-y += wakeup.c bootblock-y += gpio.c bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += timer.c
@@ -19,16 +16,12 @@ romstage-y += pinmux.c # required by s3c24x0_i2c and uart. romstage-y += dmc_common.c romstage-y += dmc_init_ddr3.c romstage-y += power.c -romstage-y += mct.c -romstage-y += monotonic_timer.c romstage-$(CONFIG_DRIVERS_UART) += uart.c -romstage-y += wakeup.c romstage-y += gpio.c romstage-y += timer.c romstage-y += trustzone.c romstage-y += i2c.c #romstage-y += wdt.c -romstage-y += cbmem.c
ramstage-y += spi.c alternate_cbfs.c ramstage-y += clock.c @@ -38,15 +31,14 @@ ramstage-y += power.c ramstage-$(CONFIG_DRIVERS_UART) += uart.c ramstage-y += cpu.c ramstage-y += tmu.c -ramstage-y += mct.c -ramstage-y += monotonic_timer.c ramstage-y += timer.c ramstage-y += gpio.c ramstage-y += i2c.c ramstage-y += dp-reg.c ramstage-y += fb.c ramstage-y += usb.c -ramstage-y += cbmem.c + +CPPFLAGS_common += -Isrc/soc/samsung/exynos/
$(objcbfs)/bootblock.raw.elf: $(objcbfs)/bootblock.elf cp $< $@ diff --git a/src/soc/samsung/exynos5250/bootblock.c b/src/soc/samsung/exynos5250/bootblock.c deleted file mode 100644 index 5d2d2b7..0000000 --- a/src/soc/samsung/exynos5250/bootblock.c +++ /dev/null @@ -1,55 +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 <bootblock_common.h> -#include <arch/cache.h> - -#include "clk.h" -#include "wakeup.h" -#include "cpu.h" - -/* convenient shorthand (in MB) */ -#define SRAM_START (EXYNOS5_SRAM_BASE >> 20) -#define SRAM_SIZE 1 -#define SRAM_END (SRAM_START + SRAM_SIZE) /* plus one... */ - -void bootblock_cpu_init(void) -{ - /* kick off the multi-core timer. - * We want to do this as early as we can. - */ - mct_start(); - - if (get_wakeup_state() == WAKEUP_DIRECT) { - wakeup(); - /* Never returns. */ - } - - /* set up dcache and MMU */ - mmu_init(); - mmu_disable_range(0, SRAM_START); - mmu_config_range(SRAM_START, SRAM_SIZE, DCACHE_WRITEBACK); - mmu_config_range(SRAM_END, 4096 - SRAM_END, DCACHE_OFF); - dcache_mmu_enable(); - - /* For most ARM systems, we have to initialize firmware media source - * (ex, SPI, SD/MMC, or eMMC) now; but for Exynos platform, that is - * already handled by iROM so there's no need to setup again. - */ -} diff --git a/src/soc/samsung/exynos5250/cbmem.c b/src/soc/samsung/exynos5250/cbmem.c deleted file mode 100644 index 4650320..0000000 --- a/src/soc/samsung/exynos5250/cbmem.c +++ /dev/null @@ -1,27 +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 <stddef.h> -#include <cbmem.h> -#include "cpu.h" - -void *cbmem_top(void) -{ - return (void *)(get_fb_base_kb() * KiB); -} diff --git a/src/soc/samsung/exynos5250/mct.c b/src/soc/samsung/exynos5250/mct.c deleted file mode 100644 index bbb90e4..0000000 --- a/src/soc/samsung/exynos5250/mct.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2012 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 <stdint.h> -#include <arch/io.h> -#include "clk.h" - -uint64_t mct_raw_value(void) -{ - uint64_t upper = readl(&exynos_mct->g_cnt_u); - uint64_t lower = readl(&exynos_mct->g_cnt_l); - - return (upper << 32) | lower; -} - -void mct_start(void) -{ - writel(readl(&exynos_mct->g_tcon) | (0x1 << 8), - &exynos_mct->g_tcon); -} diff --git a/src/soc/samsung/exynos5250/monotonic_timer.c b/src/soc/samsung/exynos5250/monotonic_timer.c deleted file mode 100644 index 89ac416..0000000 --- a/src/soc/samsung/exynos5250/monotonic_timer.c +++ /dev/null @@ -1,34 +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 <stdint.h> -#include <timer.h> - -#include "clk.h" - -static const uint32_t clocks_per_usec = MCT_HZ/1000000; - -void timer_monotonic_get(struct mono_time *mt) -{ - /* We don't have to call mct_start() here - * because it was already called in the bootblock - */ - - mono_time_set_usecs(mt, mct_raw_value() / clocks_per_usec); -} diff --git a/src/soc/samsung/exynos5250/wakeup.c b/src/soc/samsung/exynos5250/wakeup.c deleted file mode 100644 index a240717..0000000 --- a/src/soc/samsung/exynos5250/wakeup.c +++ /dev/null @@ -1,57 +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/cache.h> -#include <console/console.h> -#include "power.h" -#include "wakeup.h" - -void wakeup(void) -{ - if (wakeup_need_reset()) - power_reset(); - - power_init(); /* Ensure ps_hold_setup() for early wakeup. */ - dcache_mmu_disable(); - power_exit_wakeup(); - /* Should never return. If we do, reset. */ - power_reset(); -} - -int get_wakeup_state(void) -{ - uint32_t status = power_read_reset_status(); - - /* DIDLE/LPA can be resumed without clock reset (ex, bootblock), - * and SLEEP requires resetting clock (should be done in ROM stage). - */ - - if (status == S5P_CHECK_DIDLE || status == S5P_CHECK_LPA) - return WAKEUP_DIRECT; - - if (status == S5P_CHECK_SLEEP) - return WAKEUP_NEED_CLOCK_RESET; - - return IS_NOT_WAKEUP; -} - -void wakeup_enable_uart(void) -{ - power_release_uart_retention(); -} diff --git a/src/soc/samsung/exynos5250/wakeup.h b/src/soc/samsung/exynos5250/wakeup.h deleted file mode 100644 index 690c6a3..0000000 --- a/src/soc/samsung/exynos5250/wakeup.h +++ /dev/null @@ -1,43 +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 CPU_SAMSUNG_EXYNOS5250_WAKEUP_H -#define CPU_SAMSUNG_EXYNOS5250_WAKEUP_H - -/* Power Down Modes */ -#define S5P_CHECK_SLEEP 0x00000BAD -#define S5P_CHECK_DIDLE 0xBAD00000 -#define S5P_CHECK_LPA 0xABAD0000 - -enum { - // A normal boot (not suspend/resume) - IS_NOT_WAKEUP, - // A wake up event that can be resumed any time - WAKEUP_DIRECT, - // A wake up event that must be resumed only after - // clock and memory controllers are re-initialized - WAKEUP_NEED_CLOCK_RESET, -}; - -int wakeup_need_reset(void); -int get_wakeup_state(void); -void wakeup(void); -void wakeup_enable_uart(void); - -#endif /* CPU_SAMSUNG_EXYNOS5250_WAKEUP_H */ diff --git a/src/soc/samsung/exynos5420/Kconfig b/src/soc/samsung/exynos5420/Kconfig index 904091e..77d9cba 100644 --- a/src/soc/samsung/exynos5420/Kconfig +++ b/src/soc/samsung/exynos5420/Kconfig @@ -1,14 +1,7 @@ config CPU_SAMSUNG_EXYNOS5420 - select ARCH_BOOTBLOCK_ARMV7 - select ARCH_ROMSTAGE_ARMV7 - select ARCH_RAMSTAGE_ARMV7 - select CPU_HAS_BOOTBLOCK_INIT - select HAVE_MONOTONIC_TIMER - select HAVE_UART_SPECIAL - select RELOCATABLE_MODULES - select DYNAMIC_CBMEM bool default n + select CPU_SAMSUNG_EXYNOS
if CPU_SAMSUNG_EXYNOS5420
diff --git a/src/soc/samsung/exynos5420/Makefile.inc b/src/soc/samsung/exynos5420/Makefile.inc index ac22620..e6d894c 100644 --- a/src/soc/samsung/exynos5420/Makefile.inc +++ b/src/soc/samsung/exynos5420/Makefile.inc @@ -1,14 +1,11 @@ bootblock-y += spi.c alternate_cbfs.c -bootblock-y += bootblock.c -bootblock-y += pinmux.c mct.c power.c +bootblock-y += pinmux.c power.c # Clock is required for UART bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock_init.c bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock.c -bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += monotonic_timer.c ifeq ($(CONFIG_DRIVERS_UART),y) bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += uart.c endif -bootblock-y += wakeup.c bootblock-y += gpio.c bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += timer.c
@@ -20,15 +17,11 @@ romstage-y += pinmux.c # required by s3c24x0_i2c and uart. romstage-y += dmc_common.c romstage-y += dmc_init_ddr3.c romstage-y += power.c -romstage-y += mct.c -romstage-y += monotonic_timer.c romstage-$(CONFIG_DRIVERS_UART) += uart.c -romstage-y += wakeup.c romstage-y += gpio.c romstage-y += timer.c romstage-y += i2c.c #romstage-y += wdt.c -romstage-y += cbmem.c romstage-y += trustzone.c
ramstage-y += spi.c alternate_cbfs.c @@ -39,14 +32,13 @@ ramstage-y += power.c ramstage-$(CONFIG_DRIVERS_UART) += uart.c ramstage-y += cpu.c ramstage-y += tmu.c -ramstage-y += mct.c -ramstage-y += monotonic_timer.c ramstage-y += timer.c ramstage-y += gpio.c ramstage-y += i2c.c ramstage-y += dp.c dp_lowlevel.c fimd.c ramstage-y += usb.c -ramstage-y += cbmem.c + +CPPFLAGS_common += -Isrc/soc/samsung/exynos/
$(objcbfs)/bootblock.raw.elf: $(objcbfs)/bootblock.elf cp $< $@ diff --git a/src/soc/samsung/exynos5420/bootblock.c b/src/soc/samsung/exynos5420/bootblock.c deleted file mode 100644 index 5d2d2b7..0000000 --- a/src/soc/samsung/exynos5420/bootblock.c +++ /dev/null @@ -1,55 +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 <bootblock_common.h> -#include <arch/cache.h> - -#include "clk.h" -#include "wakeup.h" -#include "cpu.h" - -/* convenient shorthand (in MB) */ -#define SRAM_START (EXYNOS5_SRAM_BASE >> 20) -#define SRAM_SIZE 1 -#define SRAM_END (SRAM_START + SRAM_SIZE) /* plus one... */ - -void bootblock_cpu_init(void) -{ - /* kick off the multi-core timer. - * We want to do this as early as we can. - */ - mct_start(); - - if (get_wakeup_state() == WAKEUP_DIRECT) { - wakeup(); - /* Never returns. */ - } - - /* set up dcache and MMU */ - mmu_init(); - mmu_disable_range(0, SRAM_START); - mmu_config_range(SRAM_START, SRAM_SIZE, DCACHE_WRITEBACK); - mmu_config_range(SRAM_END, 4096 - SRAM_END, DCACHE_OFF); - dcache_mmu_enable(); - - /* For most ARM systems, we have to initialize firmware media source - * (ex, SPI, SD/MMC, or eMMC) now; but for Exynos platform, that is - * already handled by iROM so there's no need to setup again. - */ -} diff --git a/src/soc/samsung/exynos5420/cbmem.c b/src/soc/samsung/exynos5420/cbmem.c deleted file mode 100644 index 4650320..0000000 --- a/src/soc/samsung/exynos5420/cbmem.c +++ /dev/null @@ -1,27 +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 <stddef.h> -#include <cbmem.h> -#include "cpu.h" - -void *cbmem_top(void) -{ - return (void *)(get_fb_base_kb() * KiB); -} diff --git a/src/soc/samsung/exynos5420/mct.c b/src/soc/samsung/exynos5420/mct.c deleted file mode 100644 index bbb90e4..0000000 --- a/src/soc/samsung/exynos5420/mct.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2012 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 <stdint.h> -#include <arch/io.h> -#include "clk.h" - -uint64_t mct_raw_value(void) -{ - uint64_t upper = readl(&exynos_mct->g_cnt_u); - uint64_t lower = readl(&exynos_mct->g_cnt_l); - - return (upper << 32) | lower; -} - -void mct_start(void) -{ - writel(readl(&exynos_mct->g_tcon) | (0x1 << 8), - &exynos_mct->g_tcon); -} diff --git a/src/soc/samsung/exynos5420/monotonic_timer.c b/src/soc/samsung/exynos5420/monotonic_timer.c deleted file mode 100644 index 89ac416..0000000 --- a/src/soc/samsung/exynos5420/monotonic_timer.c +++ /dev/null @@ -1,34 +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 <stdint.h> -#include <timer.h> - -#include "clk.h" - -static const uint32_t clocks_per_usec = MCT_HZ/1000000; - -void timer_monotonic_get(struct mono_time *mt) -{ - /* We don't have to call mct_start() here - * because it was already called in the bootblock - */ - - mono_time_set_usecs(mt, mct_raw_value() / clocks_per_usec); -} diff --git a/src/soc/samsung/exynos5420/wakeup.c b/src/soc/samsung/exynos5420/wakeup.c deleted file mode 100644 index a240717..0000000 --- a/src/soc/samsung/exynos5420/wakeup.c +++ /dev/null @@ -1,57 +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/cache.h> -#include <console/console.h> -#include "power.h" -#include "wakeup.h" - -void wakeup(void) -{ - if (wakeup_need_reset()) - power_reset(); - - power_init(); /* Ensure ps_hold_setup() for early wakeup. */ - dcache_mmu_disable(); - power_exit_wakeup(); - /* Should never return. If we do, reset. */ - power_reset(); -} - -int get_wakeup_state(void) -{ - uint32_t status = power_read_reset_status(); - - /* DIDLE/LPA can be resumed without clock reset (ex, bootblock), - * and SLEEP requires resetting clock (should be done in ROM stage). - */ - - if (status == S5P_CHECK_DIDLE || status == S5P_CHECK_LPA) - return WAKEUP_DIRECT; - - if (status == S5P_CHECK_SLEEP) - return WAKEUP_NEED_CLOCK_RESET; - - return IS_NOT_WAKEUP; -} - -void wakeup_enable_uart(void) -{ - power_release_uart_retention(); -} diff --git a/src/soc/samsung/exynos5420/wakeup.h b/src/soc/samsung/exynos5420/wakeup.h deleted file mode 100644 index 27ce8e2..0000000 --- a/src/soc/samsung/exynos5420/wakeup.h +++ /dev/null @@ -1,43 +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 CPU_SAMSUNG_EXYNOS5420_WAKEUP_H -#define CPU_SAMSUNG_EXYNOS5420_WAKEUP_H - -/* Power Down Modes */ -#define S5P_CHECK_SLEEP 0x00000BAD -#define S5P_CHECK_DIDLE 0xBAD00000 -#define S5P_CHECK_LPA 0xABAD0000 - -enum { - // A normal boot (not suspend/resume) - IS_NOT_WAKEUP, - // A wake up event that can be resumed any time - WAKEUP_DIRECT, - // A wake up event that must be resumed only after - // clock and memory controllers are re-initialized - WAKEUP_NEED_CLOCK_RESET, -}; - -int wakeup_need_reset(void); -int get_wakeup_state(void); -void wakeup(void); -void wakeup_enable_uart(void); - -#endif /* CPU_SAMSUNG_EXYNOS5420_WAKEUP_H */
-
Edward O'Callaghan