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-rw-r--r--hw/i2c/smbus_eeprom.c30
-rw-r--r--hw/mips/mips_fulong2e.c10
-rw-r--r--hw/ppc/sam460ex.c12
-rw-r--r--include/hw/i2c/smbus_eeprom.h2
4 files changed, 10 insertions, 44 deletions
diff --git a/hw/i2c/smbus_eeprom.c b/hw/i2c/smbus_eeprom.c
index 5adf3b1..07fbbf8 100644
--- a/hw/i2c/smbus_eeprom.c
+++ b/hw/i2c/smbus_eeprom.c
@@ -195,8 +195,7 @@ void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom,
}
/* Generate SDRAM SPD EEPROM data describing a module of type and size */
-uint8_t *spd_data_generate(enum sdram_type type, ram_addr_t ram_size,
- Error **errp)
+uint8_t *spd_data_generate(enum sdram_type type, ram_addr_t ram_size)
{
uint8_t *spd;
uint8_t nbanks;
@@ -222,29 +221,10 @@ uint8_t *spd_data_generate(enum sdram_type type, ram_addr_t ram_size,
g_assert_not_reached();
}
size = ram_size >> 20; /* work in terms of megabytes */
- if (size < 4) {
- error_setg(errp, "SDRAM size is too small");
- return NULL;
- }
sz_log2 = 31 - clz32(size);
size = 1U << sz_log2;
- if (ram_size > size * MiB) {
- error_setg(errp, "SDRAM size 0x"RAM_ADDR_FMT" is not a power of 2, "
- "truncating to %u MB", ram_size, size);
- }
- if (sz_log2 < min_log2) {
- error_setg(errp,
- "Memory size is too small for SDRAM type, adjusting type");
- if (size >= 32) {
- type = DDR;
- min_log2 = 5;
- max_log2 = 12;
- } else {
- type = SDR;
- min_log2 = 2;
- max_log2 = 9;
- }
- }
+ assert(ram_size == size * MiB);
+ assert(sz_log2 >= min_log2);
nbanks = 1;
while (sz_log2 > max_log2 && nbanks < 8) {
@@ -252,9 +232,7 @@ uint8_t *spd_data_generate(enum sdram_type type, ram_addr_t ram_size,
nbanks++;
}
- if (size > (1ULL << sz_log2) * nbanks) {
- error_setg(errp, "Memory size is too big for SDRAM, truncating");
- }
+ assert(size == (1ULL << sz_log2) * nbanks);
/* split to 2 banks if possible to avoid a bug in MIPS Malta firmware */
if (nbanks == 1 && sz_log2 > min_log2) {
diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c
index 5040afd..ef02d54 100644
--- a/hw/mips/mips_fulong2e.c
+++ b/hw/mips/mips_fulong2e.c
@@ -297,7 +297,6 @@ static void mips_fulong2e_init(MachineState *machine)
MemoryRegion *bios = g_new(MemoryRegion, 1);
long bios_size;
uint8_t *spd_data;
- Error *err = NULL;
int64_t kernel_entry;
PCIBus *pci_bus;
ISABus *isa_bus;
@@ -377,13 +376,8 @@ static void mips_fulong2e_init(MachineState *machine)
}
/* Populate SPD eeprom data */
- spd_data = spd_data_generate(DDR, machine->ram_size, &err);
- if (err) {
- warn_report_err(err);
- }
- if (spd_data) {
- smbus_eeprom_init_one(smbus, 0x50, spd_data);
- }
+ spd_data = spd_data_generate(DDR, machine->ram_size);
+ smbus_eeprom_init_one(smbus, 0x50, spd_data);
mc146818_rtc_init(isa_bus, 2000, NULL);
diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
index 1e3eaac..42a8c9f 100644
--- a/hw/ppc/sam460ex.c
+++ b/hw/ppc/sam460ex.c
@@ -292,7 +292,6 @@ static void sam460ex_init(MachineState *machine)
SysBusDevice *sbdev;
struct boot_info *boot_info;
uint8_t *spd_data;
- Error *err = NULL;
int success;
cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
@@ -336,14 +335,9 @@ static void sam460ex_init(MachineState *machine)
i2c = PPC4xx_I2C(dev)->bus;
/* SPD EEPROM on RAM module */
spd_data = spd_data_generate(ram_sizes[0] < 128 * MiB ? DDR : DDR2,
- ram_sizes[0], &err);
- if (err) {
- warn_report_err(err);
- }
- if (spd_data) {
- spd_data[20] = 4; /* SO-DIMM module */
- smbus_eeprom_init_one(i2c, 0x50, spd_data);
- }
+ ram_sizes[0]);
+ spd_data[20] = 4; /* SO-DIMM module */
+ smbus_eeprom_init_one(i2c, 0x50, spd_data);
/* RTC */
i2c_create_slave(i2c, "m41t80", 0x68);
diff --git a/include/hw/i2c/smbus_eeprom.h b/include/hw/i2c/smbus_eeprom.h
index 15e2151..68b0063 100644
--- a/include/hw/i2c/smbus_eeprom.h
+++ b/include/hw/i2c/smbus_eeprom.h
@@ -31,6 +31,6 @@ void smbus_eeprom_init(I2CBus *bus, int nb_eeprom,
const uint8_t *eeprom_spd, int size);
enum sdram_type { SDR = 0x4, DDR = 0x7, DDR2 = 0x8 };
-uint8_t *spd_data_generate(enum sdram_type type, ram_addr_t size, Error **errp);
+uint8_t *spd_data_generate(enum sdram_type type, ram_addr_t size);
#endif