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ppc: lmb: move arch specific lmb reservations to arch_misc_init()

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All the current function definitions of arch_lmb_reserve() are doing
the same thing -- reserve the U-Boot memory region. The powerpc(ppc)
architecture, in addition, is making some LMB reservations for the
bootm related image loading. Move these ppc specific reservations to
the arch_misc_init() function. This allows to move the U-Boot memory
region reservation to a different function, and remove
arch_lmb_reserve() in a subsequent commit.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Sughosh Ganu
2024-08-26 17:29:29 +05:30
committed by Tom Rini
parent b6400de7e0
commit 17f695dd1b
5 changed files with 64 additions and 56 deletions
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62
arch/powerpc/lib/misc.c Normal file
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2024 Linaro Ltd.
*/
#include <image.h>
#include <init.h>
#include <lmb.h>
#include <asm/mp.h>
#include <dm/device.h>
#include <dm/uclass.h>
#ifndef CFG_SYS_LINUX_LOWMEM_MAX_SIZE
#define CFG_SYS_LINUX_LOWMEM_MAX_SIZE (768 * 1024 * 1024)
#endif
int arch_misc_init(void)
{
if (CONFIG_IS_ENABLED(CMD_BOOTM)) {
phys_size_t bootm_size;
ulong size, bootmap_base;
bootmap_base = env_get_bootm_low();
bootm_size = env_get_bootm_size();
#ifdef DEBUG
if (((u64)bootmap_base + bootm_size) >
(CFG_SYS_SDRAM_BASE + (u64)gd->ram_size))
puts("WARNING: bootm_low + bootm_size exceed total memory\n");
if ((bootmap_base + bootm_size) > get_effective_memsize())
puts("WARNING: bootm_low + bootm_size exceed eff. memory\n");
#endif
size = min(bootm_size, get_effective_memsize());
size = min(size, (ulong)CFG_SYS_LINUX_LOWMEM_MAX_SIZE);
if (size < bootm_size) {
ulong base = bootmap_base + size;
printf("WARNING: adjusting available memory from 0x%lx to 0x%llx\n",
size, (unsigned long long)bootm_size);
lmb_reserve(base, bootm_size - size);
}
#ifdef CONFIG_MP
cpu_mp_lmb_reserve();
#endif
}
if (IS_ENABLED(CONFIG_FSL_CAAM)) {
struct udevice *dev;
int ret;
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_DRIVER_GET(caam_jr), &dev);
if (ret)
printf("Failed to initialize caam_jr: %d\n", ret);
}
return 0;
}