diff options
| author | BALATON Zoltan <balaton@eik.bme.hu> | 2022-09-24 14:27:52 +0200 |
|---|---|---|
| committer | Daniel Henrique Barboza <danielhb413@gmail.com> | 2022-10-17 16:15:09 -0300 |
| commit | 68b9a2e38d7183f64dddc5faec9a16c70a4f095c (patch) | |
| tree | d172ca8d0ca763b634b3ede5ccb1d164c65e3cec /hw/ppc/ppc4xx_devs.c | |
| parent | 8626982301dc8dbbe49e0fb1730461955df879c8 (diff) | |
ppc4xx_sdram: Get rid of the init RAM hack
The do_init parameter of ppc4xx_sdram_init() is used to map memory
regions that is normally done by the firmware by programming the SDRAM
controller. Do this from board code emulating what firmware would do
when booting a kernel directly from -kernel without a firmware so we
can get rid of this do_init hack.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <d6c44c870befa1a075e21f1a59926dcdaff63f6b.1664021647.git.balaton@eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Diffstat (limited to 'hw/ppc/ppc4xx_devs.c')
| -rw-r--r-- | hw/ppc/ppc4xx_devs.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/hw/ppc/ppc4xx_devs.c b/hw/ppc/ppc4xx_devs.c index 1226ec4aa9..3475589679 100644 --- a/hw/ppc/ppc4xx_devs.c +++ b/hw/ppc/ppc4xx_devs.c @@ -350,8 +350,7 @@ static void sdram_reset(void *opaque) void ppc4xx_sdram_init(CPUPPCState *env, qemu_irq irq, int nbanks, MemoryRegion *ram_memories, hwaddr *ram_bases, - hwaddr *ram_sizes, - int do_init) + hwaddr *ram_sizes) { ppc4xx_sdram_t *sdram; int i; @@ -369,9 +368,12 @@ void ppc4xx_sdram_init(CPUPPCState *env, qemu_irq irq, int nbanks, sdram, &dcr_read_sdram, &dcr_write_sdram); ppc_dcr_register(env, SDRAM0_CFGDATA, sdram, &dcr_read_sdram, &dcr_write_sdram); - if (do_init) { - sdram_map_bcr(sdram); - } +} + +void ppc4xx_sdram_enable(CPUPPCState *env) +{ + ppc_dcr_write(env->dcr_env, SDRAM0_CFGADDR, 0x20); + ppc_dcr_write(env->dcr_env, SDRAM0_CFGDATA, 0x80000000); } /* |