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ppc440_sdram: Move RAM size check to ppc440_sdram_init

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Move the check for valid memory sizes from board to sdram controller
init. This adds the missing valid memory sizes of 16 and 8 MiB to the
DoC and the board now only checks for additional restrictions imposed
by its firmware then sdram init checks for valid sizes for SoC.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <41da3797392acaacc7963b79512c8af8005fa4b0.1664021647.git.balaton@eik.bme.hu>
[danielhb: avoid 4*GiB size due to 32 bit build problems]
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
BALATON Zoltan 2022-09-24 14:28:03 +02:00 committed by Daniel Henrique Barboza
parent 1e545fbc88
commit ef10aebb9a
3 changed files with 30 additions and 25 deletions
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4
hw/ppc/ppc440.h
View file

@ -11,13 +11,13 @@
#ifndef PPC440_H
#define PPC440_H
#include "hw/ppc/ppc4xx.h"
#include "hw/ppc/ppc.h"
void ppc4xx_l2sram_init(CPUPPCState *env);
void ppc4xx_cpr_init(CPUPPCState *env);
void ppc4xx_sdr_init(CPUPPCState *env);
void ppc440_sdram_init(CPUPPCState *env, int nbanks,
Ppc4xxSdramBank *ram_banks);
MemoryRegion *ram);
void ppc4xx_ahb_init(CPUPPCState *env);
void ppc4xx_dma_init(CPUPPCState *env, int dcr_base);
void ppc460ex_pcie_init(CPUPPCState *env);

19
hw/ppc/ppc440_uc.c
View file

@ -487,7 +487,7 @@ void ppc4xx_sdr_init(CPUPPCState *env)
typedef struct ppc440_sdram_t {
uint32_t addr;
uint32_t mcopt2;
int nbanks;
int nbanks; /* Banks to use from the 4, e.g. when board has less slots */
Ppc4xxSdramBank bank[4];
} ppc440_sdram_t;
@ -733,18 +733,21 @@ static void sdram_ddr2_reset(void *opaque)
}
void ppc440_sdram_init(CPUPPCState *env, int nbanks,
Ppc4xxSdramBank *ram_banks)
MemoryRegion *ram)
{
ppc440_sdram_t *s;
int i;
/*
* SoC also has 4 GiB but that causes problem with 32 bit
* builds (4*GiB overflows the 32 bit ram_addr_t).
*/
const ram_addr_t valid_bank_sizes[] = {
2 * GiB, 1 * GiB, 512 * MiB, 256 * MiB, 128 * MiB,
64 * MiB, 32 * MiB, 16 * MiB, 8 * MiB, 0
};
s = g_malloc0(sizeof(*s));
s->nbanks = nbanks;
for (i = 0; i < nbanks; i++) {
s->bank[i].ram = ram_banks[i].ram;
s->bank[i].base = ram_banks[i].base;
s->bank[i].size = ram_banks[i].size;
}
ppc4xx_sdram_banks(ram, s->nbanks, s->bank, valid_bank_sizes);
qemu_register_reset(&sdram_ddr2_reset, s);
ppc_dcr_register(env, SDRAM0_CFGADDR,
s, &sdram_ddr2_dcr_read, &sdram_ddr2_dcr_write);

32
hw/ppc/sam460ex.c
View file

@ -74,13 +74,6 @@
#define EBC_FREQ 115000000
#define UART_FREQ 11059200
/* The SoC could also handle 4 GiB but firmware does not work with that. */
/* Maybe it overflows a signed 32 bit number somewhere? */
static const ram_addr_t ppc460ex_sdram_bank_sizes[] = {
2 * GiB, 1 * GiB, 512 * MiB, 256 * MiB, 128 * MiB, 64 * MiB,
32 * MiB, 0
};
struct boot_info {
uint32_t dt_base;
uint32_t dt_size;
@ -273,7 +266,6 @@ static void sam460ex_init(MachineState *machine)
{
MemoryRegion *address_space_mem = get_system_memory();
MemoryRegion *isa = g_new(MemoryRegion, 1);
Ppc4xxSdramBank *ram_banks = g_new0(Ppc4xxSdramBank, 1);
MemoryRegion *l2cache_ram = g_new(MemoryRegion, 1);
DeviceState *uic[4];
int i;
@ -340,12 +332,22 @@ static void sam460ex_init(MachineState *machine)
}
/* SDRAM controller */
/* put all RAM on first bank because board has one slot
* and firmware only checks that */
ppc4xx_sdram_banks(machine->ram, 1, ram_banks, ppc460ex_sdram_bank_sizes);
/* The SoC could also handle 4 GiB but firmware does not work with that. */
if (machine->ram_size > 2 * GiB) {
error_report("Memory over 2 GiB is not supported");
exit(1);
}
/* Firmware needs at least 64 MiB */
if (machine->ram_size < 64 * MiB) {
error_report("Memory below 64 MiB is not supported");
exit(1);
}
/*
* Put all RAM on first bank because board has one slot
* and firmware only checks that
*/
ppc440_sdram_init(env, 1, machine->ram);
/* FIXME: does 460EX have ECC interrupts? */
ppc440_sdram_init(env, 1, ram_banks);
/* Enable SDRAM memory regions as we may boot without firmware */
ppc4xx_sdram_ddr2_enable(env);
@ -354,8 +356,8 @@ static void sam460ex_init(MachineState *machine)
qdev_get_gpio_in(uic[0], 2));
i2c = PPC4xx_I2C(dev)->bus;
/* SPD EEPROM on RAM module */
spd_data = spd_data_generate(ram_banks->size < 128 * MiB ? DDR : DDR2,
ram_banks->size);
spd_data = spd_data_generate(machine->ram_size < 128 * MiB ? DDR : DDR2,
machine->ram_size);
spd_data[20] = 4; /* SO-DIMM module */
smbus_eeprom_init_one(i2c, 0x50, spd_data);
/* RTC */