Hello Duan huayang,
I'd like you to do a code review. Please visit
https://review.coreboot.org/c/coreboot/+/44714
to review the following change.
Change subject: soc/mediatek/mt8192: Save dramc shuffle result after calibration ......................................................................
soc/mediatek/mt8192: Save dramc shuffle result after calibration
Signed-off-by: Huayang Duan huayang.duan@mediatek.com Change-Id: Icfd0923d4bd34ebb082e00e87f262b0d908fe342 --- M src/soc/mediatek/mt8192/dramc_dvfs.c M src/soc/mediatek/mt8192/dramc_pi_main.c 2 files changed, 87 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/14/44714/1
diff --git a/src/soc/mediatek/mt8192/dramc_dvfs.c b/src/soc/mediatek/mt8192/dramc_dvfs.c index ce24829..67e2340 100644 --- a/src/soc/mediatek/mt8192/dramc_dvfs.c +++ b/src/soc/mediatek/mt8192/dramc_dvfs.c @@ -111,3 +111,85 @@ *(cali->pll_mode) = pll_mode; }
+void dramc_save_result_to_shuffle(dram_dfs_shu src, dram_dfs_shu dst) +{ + u8 tmp; + + for (u8 chn = 0; chn < CHANNEL_MAX; chn++) { + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_DMA_FIRE, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_APB_SLV_SEL, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_MODE, 1); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_STEP_EN_MODE, 1); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SRAM_WR_MODE, 1); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_APB_WR_MODE, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_SHU_LEVEL_APB, src); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_SHU_LEVEL_SRAM, dst); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_DMA_FIRE, 1); + do { + tmp = READ32_BITFIELD(&ch[chn].phy_nao.misc_dma_debug0, + MISC_DMA_DEBUG0_SRAM_DONE); + tmp |= (READ32_BITFIELD(&ch[chn].phy_nao.misc_dma_debug0, + MISC_DMA_DEBUG0_APB_DONE) << 1); + dramc_dbg("wait dramc to shuffle sram done, tmp:%d.\n", tmp); + } while (tmp != 0x3); + + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_DMA_FIRE, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_STEP_EN_MODE, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_MODE, 0); + } + + for (u8 chn = 0; chn < CHANNEL_MAX; chn++) + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SRAM_WR_MODE, 0); +} + +void dramc_load_shuffle_to_dramc(dram_dfs_shu src, dram_dfs_shu dst) +{ + u8 tmp; + + for (u8 chn = 0; chn < CHANNEL_MAX; chn++) { + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_DMA_FIRE, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_APB_SLV_SEL, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_MODE, 1); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_STEP_EN_MODE, 1); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SRAM_WR_MODE, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_APB_WR_MODE, 1); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_SHU_LEVEL_APB, dst); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_SHU_LEVEL_SRAM, src); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_DMA_FIRE, 1); + do { + tmp = READ32_BITFIELD(&ch[chn].phy_nao.misc_dma_debug0, + MISC_DMA_DEBUG0_SRAM_DONE); + tmp |= (READ32_BITFIELD(&ch[chn].phy_nao.misc_dma_debug0, + MISC_DMA_DEBUG0_APB_DONE)<< 1); + dramc_dbg("wait shuffle sram to dramc done.\n"); + } while (tmp != 0x3); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_DMA_FIRE, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_STEP_EN_MODE, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_sram_dma0, + MISC_SRAM_DMA0_SW_MODE, 0); + } +} diff --git a/src/soc/mediatek/mt8192/dramc_pi_main.c b/src/soc/mediatek/mt8192/dramc_pi_main.c index 5ca7bce..3273f28 100644 --- a/src/soc/mediatek/mt8192/dramc_pi_main.c +++ b/src/soc/mediatek/mt8192/dramc_pi_main.c @@ -290,6 +290,11 @@ get_dram_info_after_cal(&cali);
dramc_ac_timing_optimize(&cali); + dramc_save_result_to_shuffle(DRAM_DFS_SHU0, cali.shu); + + /* for frequency switch in dramc_mode_reg_init phase */ + if (first_freq_k) + dramc_load_shuffle_to_dramc(cali.shu, DRAM_DFS_SHU1);
first_freq_k= false; }