diff options
| author | Tom Warren <twarren@nvidia.com> | 2015-06-30 10:22:12 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-07-07 17:21:53 +0200 |
| commit | faa76f5548297ce246b84fe9a1aa6cbff2ff9fdb (patch) | |
| tree | b075868504eab5444e1d9f338d6a3c214bc2e64d /src/soc/nvidia/tegra210/clock.c | |
| parent | fd5398fcddb0391f8fcee4382f70c41c3c44ae1e (diff) | |
T210: UTMIP: Correct UTMIP PLL programming as per Mark Kuo
BUG=chrome-os-partner:39603
BRANCH=none
TEST=Built OK for Smaug.
Change-Id: Iba170d8ad6f1dff111421fd61f71da19de57efaa
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 1bf1c1442dacf45bac5d55b05ada99a2c96f2e45
Original-Change-Id: Iecf04691a637b56e2f2287ab7d4d0cdda0382421
Original-Signed-off-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/282720
Original-Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Original-Reviewed-by: Mark Kuo <mkuo@nvidia.com>
Reviewed-on: http://review.coreboot.org/10814
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/soc/nvidia/tegra210/clock.c')
| -rw-r--r-- | src/soc/nvidia/tegra210/clock.c | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/src/soc/nvidia/tegra210/clock.c b/src/soc/nvidia/tegra210/clock.c index aa723403de..394c781bdc 100644 --- a/src/soc/nvidia/tegra210/clock.c +++ b/src/soc/nvidia/tegra210/clock.c @@ -328,19 +328,9 @@ static void init_utmip_pll(void) { int khz = clock_get_pll_input_khz(); - /* Shut off PLL crystal clock while we mess with it */ - clrbits_le32(CLK_RST_REG(utmip_pll_cfg2), UTMIP_CFG2_PHY_XTAL_CLOCKEN); - udelay(1); - - /* CFG0 */ - u32 div_n = div_round_up(960000, khz); - write32(CLK_RST_REG(utmip_pll_cfg0), /* 960 MHz VCO */ - 1 << UTMIP_CFG0_PLL_MDIV_SHIFT | - div_n << UTMIP_CFG0_PLL_NDIV_SHIFT); - /* CFG1 */ - u32 pllu_enb_ct = div_round_up(khz, 8000); /* pllu_enb_ct / 8 (1us) */ - u32 phy_stb_ct = div_round_up(khz, 102); /* phy_stb_ct / 256(2.5ms) */ + u32 pllu_enb_ct = 0; + u32 phy_stb_ct = div_round_up(khz, 300); /* phy_stb_ct = 128 */ write32(CLK_RST_REG(utmip_pll_cfg1), pllu_enb_ct << UTMIP_CFG1_PLLU_ENABLE_DLY_COUNT_SHIFT | UTMIP_CFG1_FORCE_PLLU_POWERDOWN_ENABLE | @@ -350,16 +340,28 @@ static void init_utmip_pll(void) phy_stb_ct << UTMIP_CFG1_XTAL_FREQ_COUNT_SHIFT); /* CFG2 */ - u32 pllu_stb_ct = div_round_up(khz, 256); /* pllu_stb_ct / 256 (1ms) */ - u32 phy_act_ct = div_round_up(khz, 3200); /* phy_act_ct / 16 (5us) */ + u32 pllu_stb_ct = 0; + u32 phy_act_ct = div_round_up(khz, 6400); /* phy_act_ct = 6 */ write32(CLK_RST_REG(utmip_pll_cfg2), phy_act_ct << UTMIP_CFG2_PLL_ACTIVE_DLY_COUNT_SHIFT | pllu_stb_ct << UTMIP_CFG2_PLLU_STABLE_COUNT_SHIFT | + UTMIP_CFG2_FORCE_PD_SAMP_D_POWERDOWN_DISABLE | UTMIP_CFG2_FORCE_PD_SAMP_C_POWERDOWN_DISABLE | UTMIP_CFG2_FORCE_PD_SAMP_B_POWERDOWN_DISABLE | - UTMIP_CFG2_FORCE_PD_SAMP_A_POWERDOWN_DISABLE); - - setbits_le32(CLK_RST_REG(utmip_pll_cfg2), UTMIP_CFG2_PHY_XTAL_CLOCKEN); + UTMIP_CFG2_FORCE_PD_SAMP_A_POWERDOWN_DISABLE | + UTMIP_CFG2_FORCE_PD_SAMP_D_POWERUP_ENABLE | + UTMIP_CFG2_FORCE_PD_SAMP_C_POWERUP_ENABLE | + UTMIP_CFG2_FORCE_PD_SAMP_B_POWERUP_ENABLE | + UTMIP_CFG2_FORCE_PD_SAMP_A_POWERUP_ENABLE); + + printk(BIOS_DEBUG, "%s: UTMIPLL_HW_PWRDN_CFG0:0x%08x\n", + __func__, read32(CLK_RST_REG(utmipll_hw_pwrdn_cfg0))); + printk(BIOS_DEBUG, "%s: UTMIP_PLL_CFG0:0x%08x\n", + __func__, read32(CLK_RST_REG(utmip_pll_cfg0))); + printk(BIOS_DEBUG, "%s: UTMIP_PLL_CFG1:0x%08x\n", + __func__, read32(CLK_RST_REG(utmip_pll_cfg1))); + printk(BIOS_DEBUG, "%s: UTMIP_PLL_CFG2:0x%08x\n", + __func__, read32(CLK_RST_REG(utmip_pll_cfg2))); } /* Graphics just has to be different. There's a few more bits we |