static int emi_hibernation(int resuming)
{
int idx;
int bank, data;
static struct emi_pm *emi_saved_data;
if (resuming) {
if (emi_saved_data) {
/* restore the previous common value */
for (idx = 0; idx < emi_num_common_cfg-4; ++idx)
writel(emi_saved_data->common_cfg[idx],
emi_control+EMI_COMMON_CFG(idx));
writel(emi_saved_data->common_cfg[12], emi_control
+ EMI_BANK_ENABLE);
writel(emi_saved_data->common_cfg[13], emi_control
+ EMI_BANKNUMBER);
writel(emi_saved_data->common_cfg[14], emiss_config +
EMISS_CONFIG);
writel(emi_saved_data->common_cfg[15], emiss_config +
EMISS_ARBITER_CONFIG);
/* restore the previous bank values */
for (bank = 0; bank < emi_num_bank; ++bank) {
writel(emi_saved_data->bank[bank].base_address,
emi_control + BANK_BASEADDRESS(bank));
for (data = 0; data < emi_num_bank_cfg; ++data)
emi_bank_configure(bank, emi_saved_data->bank[bank].cfg);
}
kfree(emi_saved_data);
emi_saved_data = NULL;
}
return 0;
}
emi_saved_data = kmalloc(sizeof(struct emi_pm), GFP_NOWAIT);
if (!emi_saved_data) {
printk(KERN_ERR "Unable to freeze the emi registers\n");
return -ENOMEM;
}
/* save the emi common values */
for (idx = 0; idx < emi_num_common_cfg-4; ++idx)
emi_saved_data->common_cfg[idx] =
readl(emi_control + EMI_COMMON_CFG(idx));
emi_saved_data->common_cfg[12] = readl(emi_control + EMI_BANK_ENABLE);
emi_saved_data->common_cfg[13] = readl(emi_control + EMI_BANKNUMBER);
emi_saved_data->common_cfg[14] = readl(emiss_config + EMISS_CONFIG);
emi_saved_data->common_cfg[15] =
readl(emiss_config + EMISS_ARBITER_CONFIG);
/* save the emi bank value */
for (bank = 0; bank < emi_num_bank; ++bank) {
emi_saved_data->bank[bank].base_address =
readl(emi_control + BANK_BASEADDRESS(bank));
for (data = 0; data < emi_num_bank_cfg; ++data)
emi_saved_data->bank[bank].cfg[data] =
readl(emi_control + BANK_EMICONFIGDATA(bank, data));
}
return 0;
}
unsigned long emi_bank_base(int bank)
{
unsigned long reg;
BUG_ON(bank < 0 || bank >= EMI_BANKS);
BUG_ON(!emi_initialised);
reg = readl(emi_control + BANK_BASEADDRESS(bank));
return emi_memory_base + (reg << 22);
}
