259ee57a8c
Allocate the memory to save secure ram context which needs to be done when MPU is hitting OFF mode. The ROM code expects a physical address to this memory and hence use memblock APIs to reserve this memory as part of .reserve() callback. Maximum size as per secure RAM requirements is allocated. To keep omap1 build working, omap-secure.h file is created under plat-omap directory. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Jean Pihet <j-pihet@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Tested-by: Vishwanath BS <vishwanath.bs@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/*
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* linux/arch/arm/plat-omap/common.c
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*
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* Code common to all OMAP machines.
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* The file is created by Tony Lindgren <tony@atomide.com>
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*
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* Copyright (C) 2009 Texas Instruments
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* Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/dma-mapping.h>
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#include <linux/omapfb.h>
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#include <plat/common.h>
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#include <plat/board.h>
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#include <plat/vram.h>
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#include <plat/dsp.h>
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#include <plat/omap-secure.h>
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#define NO_LENGTH_CHECK 0xffffffff
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struct omap_board_config_kernel *omap_board_config __initdata;
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int omap_board_config_size;
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static const void *__init get_config(u16 tag, size_t len,
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int skip, size_t *len_out)
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{
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struct omap_board_config_kernel *kinfo = NULL;
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int i;
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/* Try to find the config from the board-specific structures
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* in the kernel. */
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for (i = 0; i < omap_board_config_size; i++) {
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if (omap_board_config[i].tag == tag) {
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if (skip == 0) {
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kinfo = &omap_board_config[i];
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break;
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} else {
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skip--;
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}
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}
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}
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if (kinfo == NULL)
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return NULL;
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return kinfo->data;
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}
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const void *__init __omap_get_config(u16 tag, size_t len, int nr)
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{
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return get_config(tag, len, nr, NULL);
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}
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const void *__init omap_get_var_config(u16 tag, size_t *len)
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{
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return get_config(tag, NO_LENGTH_CHECK, 0, len);
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}
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void __init omap_reserve(void)
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{
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omapfb_reserve_sdram_memblock();
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omap_vram_reserve_sdram_memblock();
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omap_dsp_reserve_sdram_memblock();
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omap_secure_ram_reserve_memblock();
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}
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void __init omap_init_consistent_dma_size(void)
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{
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#ifdef CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE
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init_consistent_dma_size(CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE << 20);
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#endif
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}
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