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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>
This commit is contained in:
Tom Warren 2015-06-30 10:22:12 -07:00 committed by Patrick Georgi
parent fd5398fcdd
commit faa76f5548
2 changed files with 25 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
src/soc/nvidia/tegra210/clock.c
View File

@ -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);
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);
setbits_le32(CLK_RST_REG(utmip_pll_cfg2), UTMIP_CFG2_PHY_XTAL_CLOCKEN);
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

9
src/soc/nvidia/tegra210/include/soc/clk_rst.h
View File

@ -428,14 +428,19 @@ enum {
#define UTMIP_CFG1_FORCE_PLL_ACTIVE_POWERDOWN_DISABLE (0 << 12)
#define UTMIP_CFG1_FORCE_PLL_ENABLE_POWERDOWN_DISABLE (0 << 14)
#define UTMIP_CFG1_FORCE_PLL_ENABLE_POWERUP_ENABLE (1 << 15)
#define UTMIP_CFG1_FORCE_PLLU_POWERDOWN_ENABLE (1 << 16)
#define UTMIP_CFG1_FORCE_PLLU_POWERDOWN_ENABLE (1 << 16)
#define UTMIP_CFG1_PLLU_ENABLE_DLY_COUNT_SHIFT (27)
#define UTMIP_CFG2_FORCE_PD_SAMP_A_POWERDOWN_DISABLE (0 << 0)
#define UTMIP_CFG2_FORCE_PD_SAMP_A_POWERUP_ENABLE (1 << 1)
#define UTMIP_CFG2_FORCE_PD_SAMP_B_POWERDOWN_DISABLE (0 << 2)
#define UTMIP_CFG2_FORCE_PD_SAMP_B_POWERUP_ENABLE (1 << 3)
#define UTMIP_CFG2_FORCE_PD_SAMP_C_POWERDOWN_DISABLE (0 << 4)
#define UTMIP_CFG2_FORCE_PD_SAMP_C_POWERUP_ENABLE (1 << 5)
#define UTMIP_CFG2_FORCE_PD_SAMP_D_POWERDOWN_DISABLE (0 << 24)
#define UTMIP_CFG2_FORCE_PD_SAMP_D_POWERUP_ENABLE (1 << 25)
#define UTMIP_CFG2_PLLU_STABLE_COUNT_SHIFT (6)
#define UTMIP_CFG2_PLL_ACTIVE_DLY_COUNT_SHIFT (18)
#define UTMIP_CFG2_PHY_XTAL_CLOCKEN (1U << 30)
#define UTMIP_CFG2_PHY_XTAL_CLOCKEN (1U << 30)
/* Generic, indiscriminate divisor mask. May catch some innocent bystander bits
* on the side that we don't particularly care about. */