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hw/sparc/leon3: remove SP initialization

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According to the doc (see §4.2.15 in [1]), the reset operation should
not impact %SP.

[1] https://gaisler.com/doc/gr712rc-usermanual.pdf

Signed-off-by: Clément Chigot <chigot@adacore.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240131085047.18458-7-chigot@adacore.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Clément Chigot 2024-01-31 09:50:44 +01:00 committed by Philippe Mathieu-Daudé
parent c92948f22b
commit 92688a91c3
1 changed files with 0 additions and 3 deletions
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3
hw/sparc/leon3.c
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@ -69,7 +69,6 @@
typedef struct ResetData {
SPARCCPU *cpu;
uint32_t entry; /* save kernel entry in case of reset */
target_ulong sp; /* initial stack pointer */
} ResetData;
static uint32_t *gen_store_u32(uint32_t *code, hwaddr addr, uint32_t val)
@ -135,7 +134,6 @@ static void main_cpu_reset(void *opaque)
cpu->halted = 0;
env->pc = s->entry;
env->npc = s->entry + 4;
env->regbase[6] = s->sp;
}
static void leon3_cache_control_int(CPUSPARCState *env)
@ -246,7 +244,6 @@ static void leon3_generic_hw_init(MachineState *machine)
/* Reset data */
reset_info = g_new0(ResetData, 1);
reset_info->cpu = cpu;
reset_info->sp = LEON3_RAM_OFFSET + ram_size;
qemu_register_reset(main_cpu_reset, reset_info);
ahb_pnp = GRLIB_AHB_PNP(qdev_new(TYPE_GRLIB_AHB_PNP));