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u-boot/arch/x86/lib/init_helpers.c

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x86: Split init functions out of board.c This patch moves towards reducing board.c to simply a set of init cores for the three initialisation phases (Flash, Flash/RAM, and RAM), a set of three init function arrays and a init function array processing function
2011-12-23 05:51:29 +00:00
/*
* (C) Copyright 2011
* Graeme Russ, <graeme.russ@gmail.com>
*
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-07-08 07:37:19 +00:00
* SPDX-License-Identifier: GPL-2.0+
x86: Split init functions out of board.c This patch moves towards reducing board.c to simply a set of init cores for the three initialisation phases (Flash, Flash/RAM, and RAM), a set of three init function arrays and a init function array processing function
2011-12-23 05:51:29 +00:00
*/
x86: Remove calculate_relocation_address() Now that we have generic routine to calculate relocation address, remove the x86 specific one which is now only used by coreboot. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2015-08-13 07:29:10 +00:00
x86: Split init functions out of board.c This patch moves towards reducing board.c to simply a set of init cores for the three initialisation phases (Flash, Flash/RAM, and RAM), a set of three init function arrays and a init function array processing function
2011-12-23 05:51:29 +00:00
#include <common.h>
treewide: replace #include <asm/errno.h> with <linux/errno.h> Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have the same content. (both just wrap <asm-generic/errno.h>) Replace all include directives for <asm/errno.h> with <linux/errno.h>. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> [trini: Fixup include/clk.] Signed-off-by: Tom Rini <trini@konsulko.com>
2016-09-21 02:28:55 +00:00
#include <linux/errno.h>
x86: Commit the current MTRRs before relocation Once we stop running from ROM we should set up the MTTRs to speed up execution. This is only needed for platforms that don't have an FSP. Also in the Coreboot case, the MTRRs are set up for us. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-01 23:18:11 +00:00
#include <asm/mtrr.h>
x86: Split init functions out of board.c This patch moves towards reducing board.c to simply a set of init cores for the three initialisation phases (Flash, Flash/RAM, and RAM), a set of three init function arrays and a init function array processing function
2011-12-23 05:51:29 +00:00
DECLARE_GLOBAL_DATA_PTR;
x86: Add function to get top of usable ram The memory layout calculations are done in calculate_relocation_address(), and coreboot has its own version of this function. But in fact all we really need is to set the top of usable RAM, and then the base version will work as is. So instead of allowing the whole calculate_relocation_address() function to be replaced, create board_get_usable_ram_top() which can be used by a board to specify the top of the area where U-Boot relocations to. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-28 19:26:10 +00:00
/* Get the top of usable RAM */
__weak ulong board_get_usable_ram_top(ulong total_size)
x86: Convert board_init_f_r to a processing loop Create an init function array for board_init_f_r - This finalises the migration to a purely array based initialisation mechanism Also tweak a few comments while we are at it so everything is 'correct' -- Changes for v2: - Renamed to a more apt name - Fix bug in set_reloc_flag_r - Re-instate gd->flags = boot_flags; in board_init_f - Added commit message
2011-12-23 10:14:22 +00:00
{
x86: Add function to get top of usable ram The memory layout calculations are done in calculate_relocation_address(), and coreboot has its own version of this function. But in fact all we really need is to set the top of usable RAM, and then the base version will work as is. So instead of allowing the whole calculate_relocation_address() function to be replaced, create board_get_usable_ram_top() which can be used by a board to specify the top of the area where U-Boot relocations to. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-28 19:26:10 +00:00
return gd->ram_size;
}
x86: Convert board_init_f_r to a processing loop Create an init function array for board_init_f_r - This finalises the migration to a purely array based initialisation mechanism Also tweak a few comments while we are at it so everything is 'correct' -- Changes for v2: - Renamed to a more apt name - Fix bug in set_reloc_flag_r - Re-instate gd->flags = boot_flags; in board_init_f - Added commit message
2011-12-23 10:14:22 +00:00
int init_cache_f_r(void)
{
x86: Commit the current MTRRs before relocation Once we stop running from ROM we should set up the MTTRs to speed up execution. This is only needed for platforms that don't have an FSP. Also in the Coreboot case, the MTRRs are set up for us. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-01 23:18:11 +00:00
#if defined(CONFIG_X86_RESET_VECTOR) & !defined(CONFIG_HAVE_FSP)
int ret;
ret = mtrr_commit(false);
x86: Test mtrr support flag before accessing mtrr msr On some x86 processors (like Intel Quark) the MTRR registers are not supported. This is reflected by the CPUID (EAX 01H) result EDX[12]. Accessing the MTRR registers on such processors will cause #GP so we must test the support flag before accessing MTRR MSRs. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-01-22 03:29:41 +00:00
/* If MTRR MSR is not implemented by the processor, just ignore it */
if (ret && ret != -ENOSYS)
x86: Commit the current MTRRs before relocation Once we stop running from ROM we should set up the MTTRs to speed up execution. This is only needed for platforms that don't have an FSP. Also in the Coreboot case, the MTRRs are set up for us. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-01 23:18:11 +00:00
return ret;
#endif
x86: Convert board_init_f_r to a processing loop Create an init function array for board_init_f_r - This finalises the migration to a purely array based initialisation mechanism Also tweak a few comments while we are at it so everything is 'correct' -- Changes for v2: - Renamed to a more apt name - Fix bug in set_reloc_flag_r - Re-instate gd->flags = boot_flags; in board_init_f - Added commit message
2011-12-23 10:14:22 +00:00
/* Initialise the CPU cache(s) */
return init_cache();
}
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