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rv1126: ddr: add extended temperature support 

Enable it by set CONFIG_ROCKCHIP_DRAM_EXTENDED_TEMP_SUPPORT to y.

Change-Id: I54db1d1b33fc9e063c05bc4aca85589b495a4db9
Signed-off-by: Tang Yun ping <typ@rock-chips.com>
This commit is contained in:
Tang Yun ping 2020-08-03 16:43:28 +08:00
parent 133495af9d
commit ee5f0829e9
2 changed files with 29 additions and 0 deletions
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7
drivers/ram/rockchip/Kconfig
View File

@ -9,6 +9,13 @@ config ROCKCHIP_SDRAM_COMMON
help
This enable sdram common driver
config ROCKCHIP_DRAM_EXTENDED_TEMP_SUPPORT
bool "enable rockchip dram extended temperature support"
depends on TPL_RAM || SPL_RAM
default n
help
This enable dram dram extended temperature support
config ROCKCHIP_TPL_INIT_DRAM_TYPE
int "TPL select DRAM type"
depends on TPL_RAM || SPL_RAM

22
drivers/ram/rockchip/sdram_rv1126.c
View File

@ -2161,6 +2161,15 @@ static int sdram_init_(struct dram_info *dram,
pctl_cfg(dram->pctl, &sdram_params->pctl_regs,
dram->sr_idle, dram->pd_idle);
#ifdef CONFIG_ROCKCHIP_DRAM_EXTENDED_TEMP_SUPPORT
u32 tmp, trefi;
tmp = readl(pctl_base + DDR_PCTL2_RFSHTMG);
trefi = (tmp >> 16) & 0xfff;
writel((tmp & 0xf000ffff) | (trefi / 2) << 16,
pctl_base + DDR_PCTL2_RFSHTMG);
#endif
/* set frequency_mode */
setbits_le32(pctl_base + DDR_PCTL2_MSTR, 0x1 << 29);
/* set target_frequency to Frequency 0 */
@ -2515,6 +2524,16 @@ static void pre_set_rate(struct dram_info *dram,
}
}
}
#ifdef CONFIG_ROCKCHIP_DRAM_EXTENDED_TEMP_SUPPORT
u32 tmp, trefi;
tmp = readl(pctl_base + UMCTL2_REGS_FREQ(dst_fsp) + DDR_PCTL2_RFSHTMG);
trefi = (tmp >> 16) & 0xfff;
writel((tmp & 0xf000ffff) | (trefi / 2) << 16,
pctl_base + UMCTL2_REGS_FREQ(dst_fsp) + DDR_PCTL2_RFSHTMG);
#endif
sw_set_ack(dram);
/* phy timing update */
@ -2996,6 +3015,9 @@ int sdram_init(void)
dram_info.ddrgrf = (void *)DDR_GRF_BASE_ADDR;
dram_info.pmugrf = (void *)PMU_GRF_BASE_ADDR;
#ifdef CONFIG_ROCKCHIP_DRAM_EXTENDED_TEMP_SUPPORT
printascii("extended temp support\n");
#endif
if (index->version_info != 2 ||
(index->global_index.size != sizeof(struct global_info) / 4) ||
(index->ddr3_index.size !=