ARM: Tegra210: Add support to common Tegra source/config files
Derived from Tegra124, modified as appropriate during T210
board bringup. Cleaned up debug statements to conserve
string space, too. This also adds misc 64-bit changes
from Thierry Reding/Stephen Warren.
Signed-off-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index 5c963d3..5d968d8 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2010-2015, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -113,7 +113,11 @@
data = readl(&pll->pll_misc);
*cpcon = (data & PLL_CPCON_MASK) >> PLL_CPCON_SHIFT;
*lfcon = (data & PLL_LFCON_MASK) >> PLL_LFCON_SHIFT;
-
+#if defined(CONFIG_TEGRA210)
+ /* T210 PLLU uses KCP/KVCO instead of CPCON/LFCON */
+ *cpcon = (data & PLLU_KCP_MASK) >> PLLU_KCP_SHIFT;
+ *lfcon = (data & PLLU_KVCO_MASK) >> PLLU_KVCO_SHIFT;
+#endif
return 0;
}
@@ -132,14 +136,28 @@
* - same fields are always mapped at same offsets, except DCCON
* - DCCON is always 0, doesn't conflict
* - M,N, P of PLLP values are ignored for PLLP
+ * NOTE: Above is no longer true with T210 - TBD: FIX THIS
*/
misc_data = (cpcon << PLL_CPCON_SHIFT) | (lfcon << PLL_LFCON_SHIFT);
+#if defined(CONFIG_TEGRA210)
+ /* T210 PLLU uses KCP/KVCO instead of cpcon/lfcon */
+ if (clkid == CLOCK_ID_USB) {
+ /* preserve EN_LOCKDET, set by default */
+ misc_data = readl(&pll->pll_misc);
+ misc_data |= (cpcon << PLLU_KCP_SHIFT) |
+ (lfcon << PLLU_KVCO_SHIFT);
+ }
+#endif
data = (divm << PLL_DIVM_SHIFT) | (divn << PLL_DIVN_SHIFT) |
(0 << PLL_BYPASS_SHIFT) | (1 << PLL_ENABLE_SHIFT);
if (clkid == CLOCK_ID_USB)
+#if defined(CONFIG_TEGRA210)
+ data |= divp << PLLU_DIVP_SHIFT;
+#else
data |= divp << PLLU_VCO_FREQ_SHIFT;
+#endif
else
data |= divp << PLL_DIVP_SHIFT;
if (pll) {
@@ -534,8 +552,15 @@
/* Set cpcon to PLL_MISC */
misc_reg = readl(&pll->pll_misc);
+#if !defined(CONFIG_TEGRA210)
misc_reg &= ~PLL_CPCON_MASK;
misc_reg |= cpcon << PLL_CPCON_SHIFT;
+#else
+ /* T210 uses KCP instead, use the most common bit shift (PLLA/U/D2) */
+ misc_reg &= ~PLLU_KCP_MASK;
+ misc_reg |= cpcon << PLLU_KCP_SHIFT;
+#endif
+
writel(misc_reg, &pll->pll_misc);
/* Enable PLL */
@@ -628,6 +653,7 @@
/*
* This function is useful on Tegra30, and any later SoCs that have compatible
* PLLP configuration registers.
+ * NOTE: Not used on Tegra210 - see tegra210_setup_pllp in T210 clock.c
*/
void tegra30_set_up_pllp(void)
{