[PATCH v7 0/3] Timer support for ARM Tegra

[PATCH v7 0/3] Timer support for ARM Tegra

[Svyatoslav Ryhel]

- ARM: tegra: remap clock_osc_freq for all Tegra family
Enum clock_osc_freq was designed to use only with T20.
This patch remaps it to use additional frequencies, added in
T30+ SoC while maintaining backwards compatibility with T20.

- drivers: timer: add timer driver for ARMv7 based Tegra devices
Add timer support for T20/T30/T114/T124 and T210 based devices.
Driver is based on DM, has device tree support and can be
used on SPL and early boot stage.

Arm64 Tegra (apart T210) according to comment in tegra-common.h use
architected timer.

- ARM: tegra: include timer as default option
Enable TIMER as default option for all Tegra devices and
enable TEGRA_TIMER for TEGRA_ARMV7_COMMON and TEGRA210.
Additionally enable SPL_TIMER if build as SPL part and
drop deprecated configs from common header.

P. S. I have no arm64 Tegra and according to comment in 
tegra-common.h
Use the Tegra US timer on ARMv7, but the architected timer on ARMv8.

---
Changeog from V6
 - use clk_m as timer calibration clock (this should properly fix T210)
 - enable timer for T210

Changed from v5:
 - added paz00 tester

Changed from v4:
 - added comments

Changed from v3:
 - removed BOOTSTAGE ifdefs
 - use early timer on boot stage unconditionally
---
Svyatoslav Ryhel (3):
  ARM: tegra: remap clock_osc_freq for all Tegra family
  drivers: timer: add driver for ARMv7 based Tegra devices and T210
  ARM: tegra: include timer as default option

 arch/arm/Kconfig                        |   1 +
 arch/arm/include/asm/arch-tegra/clock.h |   9 +-
 arch/arm/mach-tegra/Kconfig             |   3 +
 arch/arm/mach-tegra/clock.c             |  17 +++-
 arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
 arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
 arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
 arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
 arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
 arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
 drivers/timer/Kconfig                   |   8 ++
 drivers/timer/Makefile                  |   1 +
 drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
 drivers/usb/host/ehci-tegra.c           |  46 +++++++--
 include/configs/tegra-common.h          |   6 --
 15 files changed, 274 insertions(+), 79 deletions(-)
 create mode 100644 drivers/timer/tegra-timer.c

-- 
2.37.2

[PATCH v7 1/3] ARM: tegra: remap clock_osc_freq for all Tegra family

[Svyatoslav Ryhel]

Enum clock_osc_freq was designed to use only with T20.
This patch remaps it to use additional frequencies, added in
T30+ SoC while maintaining backwards compatibility with T20.

Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS TF600T T30
Tested-by: Jonas Schwöbel <jonasschwoebel@yahoo.de> # Surface RT T30
Tested-by: Robert Eckelmann <longnoserob@gmail.com> # ASUS TF101 T20
Tested-by: Agneli <poczt@protonmail.ch> # Toshiba AC100 T20
Tested-by: Thierry Reding <treding@nvidia.com> # T30, T124, T210
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # LG P895 T30
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 arch/arm/include/asm/arch-tegra/clock.h |  9 ++--
 arch/arm/mach-tegra/clock.c             | 17 ++++--
 arch/arm/mach-tegra/cpu.c               | 70 ++++++++++++++++++++-----
 arch/arm/mach-tegra/tegra114/clock.c    | 13 ++---
 arch/arm/mach-tegra/tegra124/clock.c    | 13 ++---
 arch/arm/mach-tegra/tegra20/clock.c     |  4 +-
 arch/arm/mach-tegra/tegra210/clock.c    | 22 ++------
 arch/arm/mach-tegra/tegra30/clock.c     | 10 +---
 drivers/usb/host/ehci-tegra.c           | 46 ++++++++++++----
 9 files changed, 131 insertions(+), 73 deletions(-)

diff --git a/arch/arm/include/asm/arch-tegra/clock.h b/arch/arm/include/asm/arch-tegra/clock.h
index 6586015fd2..1dd5d0742c 100644
--- a/arch/arm/include/asm/arch-tegra/clock.h
+++ b/arch/arm/include/asm/arch-tegra/clock.h
@@ -13,12 +13,13 @@ struct udevice;
 /* Set of oscillator frequencies supported in the internal API. */
 enum clock_osc_freq {
 	/* All in MHz, so 13_0 is 13.0MHz */
-	CLOCK_OSC_FREQ_13_0,
-	CLOCK_OSC_FREQ_19_2,
-	CLOCK_OSC_FREQ_12_0,
-	CLOCK_OSC_FREQ_26_0,
+	CLOCK_OSC_FREQ_13_0 = 0,
+	CLOCK_OSC_FREQ_16_8,
+	CLOCK_OSC_FREQ_19_2 = 4,
 	CLOCK_OSC_FREQ_38_4,
+	CLOCK_OSC_FREQ_12_0 = 8,
 	CLOCK_OSC_FREQ_48_0,
+	CLOCK_OSC_FREQ_26_0 = 12,
 
 	CLOCK_OSC_FREQ_COUNT,
 };
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index 77c8ad978e..11bffc1701 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -28,16 +28,23 @@
 static unsigned pll_rate[CLOCK_ID_COUNT];
 
 /*
- * The oscillator frequency is fixed to one of four set values. Based on this
+ * The oscillator frequency is fixed to one of seven set values. Based on this
  * the other clocks are set up appropriately.
  */
 static unsigned osc_freq[CLOCK_OSC_FREQ_COUNT] = {
 	13000000,
+	16800000,
+	       0,
+	       0,
 	19200000,
-	12000000,
-	26000000,
 	38400000,
+	       0,
+	       0,
+	12000000,
 	48000000,
+	       0,
+	       0,
+	26000000,
 };
 
 /* return 1 if a peripheral ID is in range */
@@ -766,6 +773,7 @@ void tegra30_set_up_pllp(void)
 	 */
 	switch (clock_get_osc_freq()) {
 	case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */
+	case CLOCK_OSC_FREQ_48_0: /* OSC is 48Mhz */
 		clock_set_rate(CLOCK_ID_PERIPH, 408, 12, 0, 8);
 		clock_set_rate(CLOCK_ID_CGENERAL, 456, 12, 1, 8);
 		break;
@@ -776,10 +784,13 @@ void tegra30_set_up_pllp(void)
 		break;
 
 	case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */
+	case CLOCK_OSC_FREQ_16_8: /* OSC is 16.8Mhz */
 		clock_set_rate(CLOCK_ID_PERIPH, 408, 13, 0, 8);
 		clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8);
 		break;
+
 	case CLOCK_OSC_FREQ_19_2:
+	case CLOCK_OSC_FREQ_38_4:
 	default:
 		/*
 		 * These are not supported. It is too early to print a
diff --git a/arch/arm/mach-tegra/cpu.c b/arch/arm/mach-tegra/cpu.c
index 65b15b79fe..59ca8aeaba 100644
--- a/arch/arm/mach-tegra/cpu.c
+++ b/arch/arm/mach-tegra/cpu.c
@@ -55,11 +55,18 @@ struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = {
 	 */
 	{
 		{ .n = 1000, .m = 13, .p = 0, .cpcon = 12 }, /* OSC: 13.0 MHz */
+		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
 		{ .n =  625, .m = 12, .p = 0, .cpcon =  8 }, /* OSC: 19.2 MHz */
+		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
 		{ .n = 1000, .m = 12, .p = 0, .cpcon = 12 }, /* OSC: 12.0 MHz */
+		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
 		{ .n = 1000, .m = 26, .p = 0, .cpcon = 12 }, /* OSC: 26.0 MHz */
-		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* OSC: 38.4 MHz (N/A) */
-		{ .n =    0, .m =  0, .p = 0, .cpcon =  0 }, /* OSC: 48.0 MHz (N/A) */
 	},
 	/*
 	 * T25: 1.2 GHz
@@ -73,11 +80,18 @@ struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = {
 	 */
 	{
 		{ .n = 923, .m = 10, .p = 0, .cpcon = 12 }, /* OSC: 13.0 MHz */
+		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
 		{ .n = 750, .m = 12, .p = 0, .cpcon =  8 }, /* OSC: 19.2 MHz */
+		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
 		{ .n = 600, .m =  6, .p = 0, .cpcon = 12 }, /* OSC: 12.0 MHz */
+		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
+		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* N/A */
 		{ .n = 600, .m = 13, .p = 0, .cpcon = 12 }, /* OSC: 26.0 MHz */
-		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* OSC: 38.4 MHz (N/A) */
-		{ .n =   0, .m =  0, .p = 0, .cpcon =  0 }, /* OSC: 48.0 MHz (N/A) */
 	},
 	/*
 	 * T30: 600 MHz
@@ -91,11 +105,18 @@ struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = {
 	 */
 	{
 		{ .n = 600, .m = 13, .p = 0, .cpcon = 8 }, /* OSC: 13.0 MHz */
+		{ .n = 600, .m = 13, .p = 0, .cpcon = 8 }, /* OSC: 16.8 MHz */
+		{ .n =   0, .m =  0, .p = 0, .cpcon = 0 }, /* N/A */
+		{ .n =   0, .m =  0, .p = 0, .cpcon = 0 }, /* N/A */
 		{ .n = 500, .m = 16, .p = 0, .cpcon = 8 }, /* OSC: 19.2 MHz */
+		{ .n = 500, .m = 16, .p = 0, .cpcon = 8 }, /* OSC: 38.4 MHz */
+		{ .n =   0, .m =  0, .p = 0, .cpcon = 0 }, /* N/A */
+		{ .n =   0, .m =  0, .p = 0, .cpcon = 0 }, /* N/A */
 		{ .n = 600, .m = 12, .p = 0, .cpcon = 8 }, /* OSC: 12.0 MHz */
+		{ .n = 600, .m = 12, .p = 0, .cpcon = 8 }, /* OSC: 48.0 MHz */
+		{ .n =   0, .m =  0, .p = 0, .cpcon = 0 }, /* N/A */
+		{ .n =   0, .m =  0, .p = 0, .cpcon = 0 }, /* N/A */
 		{ .n = 600, .m = 26, .p = 0, .cpcon = 8 }, /* OSC: 26.0 MHz */
-		{ .n =   0, .m =  0, .p = 0, .cpcon = 0 }, /* OSC: 38.4 MHz (N/A) */
-		{ .n =   0, .m =  0, .p = 0, .cpcon = 0 }, /* OSC: 48.0 MHz (N/A) */
 	},
 	/*
 	 * T114: 700 MHz
@@ -108,11 +129,18 @@ struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = {
 	 */
 	{
 		{ .n = 108, .m = 1, .p = 1 }, /* OSC: 13.0 MHz */
+		{ .n = 108, .m = 1, .p = 1 }, /* OSC: 16.8 MHz */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
 		{ .n =  73, .m = 1, .p = 1 }, /* OSC: 19.2 MHz */
+		{ .n =  73, .m = 1, .p = 1 }, /* OSC: 38.4 MHz */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
 		{ .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz */
+		{ .n = 116, .m = 1, .p = 1 }, /* OSC: 48.0 MHz */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
 		{ .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz */
-		{ .n =   0, .m = 0, .p = 0 }, /* OSC: 38.4 MHz (N/A) */
-		{ .n =   0, .m = 0, .p = 0 }, /* OSC: 48.0 MHz (N/A) */
 	},
 
 	/*
@@ -126,11 +154,18 @@ struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = {
 	 */
 	{
 		{ .n = 108, .m = 1, .p = 1 }, /* OSC: 13.0 MHz */
+		{ .n = 108, .m = 1, .p = 1 }, /* OSC: 16.8 MHz */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
 		{ .n =  73, .m = 1, .p = 1 }, /* OSC: 19.2 MHz */
+		{ .n =  73, .m = 1, .p = 1 }, /* OSC: 38.4 MHz */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
 		{ .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz */
+		{ .n = 116, .m = 1, .p = 1 }, /* OSC: 48.0 MHz */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
 		{ .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz */
-		{ .n =   0, .m = 0, .p = 0 }, /* OSC: 38.4 MHz (N/A) */
-		{ .n =   0, .m = 0, .p = 0 }, /* OSC: 48.0 MHz (N/A) */
 	},
 
 	/*
@@ -143,12 +178,19 @@ struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = {
 	 * PLLX_BASE  m       7: 0    8
 	 */
 	{
-		{ .n = 108, .m = 1, .p = 1 }, /* OSC: 13.0 MHz = 702   MHz*/
-		{ .n =  73, .m = 1, .p = 1 }, /* OSC: 19.2 MHz = 700.8 MHz*/
-		{ .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz = 696   MHz*/
-		{ .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz = 702   MHz*/
+		{ .n = 108, .m = 1, .p = 1 }, /* OSC: 13.0 MHz = 702   MHz */
+		{ .n = 108, .m = 1, .p = 1 }, /* OSC: 16.0 MHz = 702   MHz */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n =  73, .m = 1, .p = 1 }, /* OSC: 19.2 MHz = 700.8 MHz */
 		{ .n =  36, .m = 1, .p = 1 }, /* OSC: 38.4 MHz = 691.2 MHz */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz = 696   MHz */
 		{ .n =  58, .m = 2, .p = 1 }, /* OSC: 48.0 MHz = 696   MHz */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n =   0, .m = 0, .p = 0 }, /* (N/A) */
+		{ .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz = 702   MHz */
 	},
 };
 
diff --git a/arch/arm/mach-tegra/tegra114/clock.c b/arch/arm/mach-tegra/tegra114/clock.c
index 703a2314e7..143f86863f 100644
--- a/arch/arm/mach-tegra/tegra114/clock.c
+++ b/arch/arm/mach-tegra/tegra114/clock.c
@@ -459,8 +459,7 @@ struct clk_pll_info tegra_pll_info_table[CLOCK_ID_PLL_COUNT] = {
 
 /*
  * Get the oscillator frequency, from the corresponding hardware configuration
- * field. Note that T30/T114 support 3 new higher freqs, but we map back
- * to the old T20 freqs. Support for the higher oscillators is TBD.
+ * field. Note that T30+ supports 3 new higher freqs.
  */
 enum clock_osc_freq clock_get_osc_freq(void)
 {
@@ -469,12 +468,7 @@ enum clock_osc_freq clock_get_osc_freq(void)
 	u32 reg;
 
 	reg = readl(&clkrst->crc_osc_ctrl);
-	reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
-
-	if (reg & 1)				/* one of the newer freqs */
-		printf("Warning: OSC_FREQ is unsupported! (%d)\n", reg);
-
-	return reg >> 2;	/* Map to most common (T20) freqs */
+	return (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
 }
 
 /* Returns a pointer to the clock source register for a peripheral */
@@ -674,6 +668,7 @@ void clock_early_init(void)
 	 */
 	switch (clock_get_osc_freq()) {
 	case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */
+	case CLOCK_OSC_FREQ_48_0: /* OSC is 48Mhz */
 		clock_set_rate(CLOCK_ID_CGENERAL, 600, 12, 0, 8);
 		clock_set_rate(CLOCK_ID_DISPLAY, 925, 12, 0, 12);
 		break;
@@ -684,10 +679,12 @@ void clock_early_init(void)
 		break;
 
 	case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */
+	case CLOCK_OSC_FREQ_16_8: /* OSC is 16.8Mhz */
 		clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8);
 		clock_set_rate(CLOCK_ID_DISPLAY, 925, 13, 0, 12);
 		break;
 	case CLOCK_OSC_FREQ_19_2:
+	case CLOCK_OSC_FREQ_38_4:
 	default:
 		/*
 		 * These are not supported. It is too early to print a
diff --git a/arch/arm/mach-tegra/tegra124/clock.c b/arch/arm/mach-tegra/tegra124/clock.c
index bbfe184652..da38b26c27 100644
--- a/arch/arm/mach-tegra/tegra124/clock.c
+++ b/arch/arm/mach-tegra/tegra124/clock.c
@@ -601,8 +601,7 @@ struct clk_pll_info tegra_pll_info_table[CLOCK_ID_PLL_COUNT] = {
 
 /*
  * Get the oscillator frequency, from the corresponding hardware configuration
- * field. Note that Tegra30+ support 3 new higher freqs, but we map back
- * to the old T20 freqs. Support for the higher oscillators is TBD.
+ * field. Note that T30+ supports 3 new higher freqs.
  */
 enum clock_osc_freq clock_get_osc_freq(void)
 {
@@ -611,12 +610,7 @@ enum clock_osc_freq clock_get_osc_freq(void)
 	u32 reg;
 
 	reg = readl(&clkrst->crc_osc_ctrl);
-	reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
-
-	if (reg & 1)				/* one of the newer freqs */
-		printf("Warning: OSC_FREQ is unsupported! (%d)\n", reg);
-
-	return reg >> 2;	/* Map to most common (T20) freqs */
+	return (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
 }
 
 /* Returns a pointer to the clock source register for a peripheral */
@@ -854,6 +848,7 @@ void clock_early_init(void)
 	 */
 	switch (clock_get_osc_freq()) {
 	case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */
+	case CLOCK_OSC_FREQ_48_0: /* OSC is 48Mhz */
 		clock_set_rate(CLOCK_ID_CGENERAL, 600, 12, 0, 8);
 		clock_set_rate(CLOCK_ID_DISPLAY, 925, 12, 0, 12);
 		break;
@@ -864,10 +859,12 @@ void clock_early_init(void)
 		break;
 
 	case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */
+	case CLOCK_OSC_FREQ_16_8: /* OSC is 16.8Mhz */
 		clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8);
 		clock_set_rate(CLOCK_ID_DISPLAY, 925, 13, 0, 12);
 		break;
 	case CLOCK_OSC_FREQ_19_2:
+	case CLOCK_OSC_FREQ_38_4:
 	default:
 		/*
 		 * These are not supported. It is too early to print a
diff --git a/arch/arm/mach-tegra/tegra20/clock.c b/arch/arm/mach-tegra/tegra20/clock.c
index 3b50a81194..8c127430aa 100644
--- a/arch/arm/mach-tegra/tegra20/clock.c
+++ b/arch/arm/mach-tegra/tegra20/clock.c
@@ -399,7 +399,9 @@ enum clock_osc_freq clock_get_osc_freq(void)
 	u32 reg;
 
 	reg = readl(&clkrst->crc_osc_ctrl);
-	return (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
+	reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
+
+	return reg << 2;
 }
 
 /* Returns a pointer to the clock source register for a peripheral */
diff --git a/arch/arm/mach-tegra/tegra210/clock.c b/arch/arm/mach-tegra/tegra210/clock.c
index 10c2478df7..330753f2ad 100644
--- a/arch/arm/mach-tegra/tegra210/clock.c
+++ b/arch/arm/mach-tegra/tegra210/clock.c
@@ -672,8 +672,7 @@ struct clk_pll_info tegra_pll_info_table[CLOCK_ID_PLL_COUNT] = {
 
 /*
  * Get the oscillator frequency, from the corresponding hardware configuration
- * field. Note that Tegra30+ support 3 new higher freqs, but we map back
- * to the old T20 freqs. Support for the higher oscillators is TBD.
+ * field. Note that T30+ supports 3 new higher freqs.
  */
 enum clock_osc_freq clock_get_osc_freq(void)
 {
@@ -682,22 +681,7 @@ enum clock_osc_freq clock_get_osc_freq(void)
 	u32 reg;
 
 	reg = readl(&clkrst->crc_osc_ctrl);
-	reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
-	/*
-	 * 0 = 13MHz, 1 = 16.8MHz, 4 = 19.2MHz, 5 = 38.4MHz,
-	 * 8 = 12MHz, 9 = 48MHz,  12 = 26MHz
-	 */
-	if (reg == 5) {
-		debug("OSC_FREQ is 38.4MHz (%d) ...\n", reg);
-		/* Map it to the 5th CLOCK_OSC_ enum, i.e. 4 */
-		return 4;
-	}
-
-	/*
-	 * Map to most common (T20) freqs (except 38.4, handled above):
-	 *  13/16.8 = 0, 19.2 = 1, 12/48 = 2, 26 = 3
-	 */
-	return reg >> 2;
+	return (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
 }
 
 /* Returns a pointer to the clock source register for a peripheral */
@@ -986,6 +970,7 @@ void clock_early_init(void)
 	 */
 	switch (clock_get_osc_freq()) {
 	case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */
+	case CLOCK_OSC_FREQ_48_0: /* OSC is 48Mhz */
 		clock_set_rate(CLOCK_ID_CGENERAL, 600, 12, 0, 8);
 		clock_set_rate(CLOCK_ID_DISPLAY, 925, 12, 0, 12);
 		break;
@@ -996,6 +981,7 @@ void clock_early_init(void)
 		break;
 
 	case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */
+	case CLOCK_OSC_FREQ_16_8: /* OSC is 16.8Mhz */
 		clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8);
 		clock_set_rate(CLOCK_ID_DISPLAY, 925, 13, 0, 12);
 		break;
diff --git a/arch/arm/mach-tegra/tegra30/clock.c b/arch/arm/mach-tegra/tegra30/clock.c
index c835cd0d47..449b66e3b2 100644
--- a/arch/arm/mach-tegra/tegra30/clock.c
+++ b/arch/arm/mach-tegra/tegra30/clock.c
@@ -439,8 +439,7 @@ struct clk_pll_info tegra_pll_info_table[CLOCK_ID_PLL_COUNT] = {
 
 /*
  * Get the oscillator frequency, from the corresponding hardware configuration
- * field. Note that T30 supports 3 new higher freqs, but we map back
- * to the old T20 freqs. Support for the higher oscillators is TBD.
+ * field. Note that T30+ supports 3 new higher freqs.
  */
 enum clock_osc_freq clock_get_osc_freq(void)
 {
@@ -449,12 +448,7 @@ enum clock_osc_freq clock_get_osc_freq(void)
 	u32 reg;
 
 	reg = readl(&clkrst->crc_osc_ctrl);
-	reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
-
-	if (reg & 1)			/* one of the newer freqs */
-		printf("Warning: OSC_FREQ is unsupported! (%d)\n", reg);
-
-	return reg >> 2;	/* Map to most common (T20) freqs */
+	return (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
 }
 
 /* Returns a pointer to the clock source register for a peripheral */
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 11d776747c..76562bd749 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -127,42 +127,70 @@ struct fdt_usb {
 static const unsigned T20_usb_pll[CLOCK_OSC_FREQ_COUNT][PARAM_COUNT] = {
 	/* DivN, DivM, DivP, CPCON, LFCON, Delays             Debounce, Bias */
 	{ 0x3C0, 0x0D, 0x00, 0xC,   0,  0x02, 0x33, 0x05, 0x7F, 0x7EF4, 5 },
+	{ 0x3C0, 0x0D, 0x00, 0xC,   0,  0x02, 0x33, 0x05, 0x7F, 0x7EF4, 5 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x0C8, 0x04, 0x00, 0x3,   0,  0x03, 0x4B, 0x06, 0xBB, 0xBB80, 7 },
 	{ 0x0C8, 0x04, 0x00, 0x3,   0,  0x03, 0x4B, 0x06, 0xBB, 0xBB80, 7 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x3C0, 0x0C, 0x00, 0xC,   0,  0x02, 0x2F, 0x04, 0x76, 0x7530, 5 },
 	{ 0x3C0, 0x0C, 0x00, 0xC,   0,  0x02, 0x2F, 0x04, 0x76, 0x7530, 5 },
-	{ 0x3C0, 0x1A, 0x00, 0xC,   0,  0x04, 0x66, 0x09, 0xFE, 0xFDE8, 9 },
 	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
-	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 }
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x3C0, 0x1A, 0x00, 0xC,   0,  0x04, 0x66, 0x09, 0xFE, 0xFDE8, 9 }
 };
 
 static const unsigned T30_usb_pll[CLOCK_OSC_FREQ_COUNT][PARAM_COUNT] = {
 	/* DivN, DivM, DivP, CPCON, LFCON, Delays             Debounce, Bias */
 	{ 0x3C0, 0x0D, 0x00, 0xC,   1,  0x02, 0x33, 0x09, 0x7F, 0x7EF4, 5 },
+	{ 0x3C0, 0x0D, 0x00, 0xC,   1,  0x02, 0x33, 0x09, 0x7F, 0x7EF4, 5 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
 	{ 0x0C8, 0x04, 0x00, 0x3,   0,  0x03, 0x4B, 0x0C, 0xBB, 0xBB80, 7 },
+	{ 0x0C8, 0x04, 0x00, 0x3,   0,  0x03, 0x4B, 0x0C, 0xBB, 0xBB80, 7 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
 	{ 0x3C0, 0x0C, 0x00, 0xC,   1,  0x02, 0x2F, 0x08, 0x76, 0x7530, 5 },
-	{ 0x3C0, 0x1A, 0x00, 0xC,   1,  0x04, 0x66, 0x09, 0xFE, 0xFDE8, 9 },
+	{ 0x3C0, 0x0C, 0x00, 0xC,   1,  0x02, 0x2F, 0x08, 0x76, 0x7530, 5 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
 	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
-	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 }
+	{ 0x3C0, 0x1A, 0x00, 0xC,   1,  0x04, 0x66, 0x09, 0xFE, 0xFDE8, 9 }
 };
 
 static const unsigned T114_usb_pll[CLOCK_OSC_FREQ_COUNT][PARAM_COUNT] = {
 	/* DivN, DivM, DivP, CPCON, LFCON, Delays             Debounce, Bias */
 	{ 0x3C0, 0x0D, 0x00, 0xC,   2,  0x02, 0x33, 0x09, 0x7F, 0x7EF4, 6 },
+	{ 0x3C0, 0x0D, 0x00, 0xC,   2,  0x02, 0x33, 0x09, 0x7F, 0x7EF4, 6 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x0C8, 0x04, 0x00, 0x3,   2,  0x03, 0x4B, 0x0C, 0xBB, 0xBB80, 8 },
 	{ 0x0C8, 0x04, 0x00, 0x3,   2,  0x03, 0x4B, 0x0C, 0xBB, 0xBB80, 8 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x3C0, 0x0C, 0x00, 0xC,   2,  0x02, 0x2F, 0x08, 0x76, 0x7530, 5 },
 	{ 0x3C0, 0x0C, 0x00, 0xC,   2,  0x02, 0x2F, 0x08, 0x76, 0x7530, 5 },
-	{ 0x3C0, 0x1A, 0x00, 0xC,   2,  0x04, 0x66, 0x09, 0xFE, 0xFDE8, 11 },
 	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
-	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 }
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00, 0x0000, 0 },
+	{ 0x3C0, 0x1A, 0x00, 0xC,   2,  0x04, 0x66, 0x09, 0xFE, 0xFDE8, 11 }
 };
 
 /* NOTE: 13/26MHz settings are N/A for T210, so dupe 12MHz settings for now */
 static const unsigned T210_usb_pll[CLOCK_OSC_FREQ_COUNT][PARAM_COUNT] = {
 	/* DivN, DivM, DivP, KCP,   KVCO,  Delays              Debounce, Bias */
 	{ 0x028, 0x01, 0x01, 0x0,   0,  0x02, 0x2F, 0x08, 0x76,  32500,  5 },
+	{ 0x028, 0x01, 0x01, 0x0,   0,  0x02, 0x2F, 0x08, 0x76,  32500,  5 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00,      0,  0 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00,      0,  0 },
 	{ 0x019, 0x01, 0x01, 0x0,   0,  0x03, 0x4B, 0x0C, 0xBB,  48000,  8 },
-	{ 0x028, 0x01, 0x01, 0x0,   0,  0x02, 0x2F, 0x08, 0x76,  30000,  5 },
-	{ 0x028, 0x01, 0x01, 0x0,   0,  0x02, 0x2F, 0x08, 0x76,  65000,  5 },
 	{ 0x019, 0x02, 0x01, 0x0,   0,  0x05, 0x96, 0x18, 0x177, 96000, 15 },
-	{ 0x028, 0x04, 0x01, 0x0,   0,  0x04, 0x66, 0x09, 0xFE, 120000, 20 }
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00,      0,  0 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00,      0,  0 },
+	{ 0x028, 0x01, 0x01, 0x0,   0,  0x02, 0x2F, 0x08, 0x76,  30000,  5 },
+	{ 0x028, 0x04, 0x01, 0x0,   0,  0x04, 0x66, 0x09, 0xFE, 120000, 20 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00,      0,  0 },
+	{ 0x000, 0x00, 0x00, 0x0,   0,  0x00, 0x00, 0x00, 0x00,      0,  0 },
+	{ 0x028, 0x01, 0x01, 0x0,   0,  0x02, 0x2F, 0x08, 0x76,  65000,  5 }
 };
 
 /* UTMIP Idle Wait Delay */
-- 
2.37.2

[PATCH v7 2/3] drivers: timer: add driver for ARMv7 based Tegra devices and T210

[Svyatoslav Ryhel]

Add timer support for T20/T30/T114/T124 and T210 based devices.
Driver is based on DM, has device tree support and can be
used on SPL and early boot stage.

Arm64 Tegra (apart T210) according to comment in tegra-common.h use
architected timer.

Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS TF600T T30
Tested-by: Jonas Schwöbel <jonasschwoebel@yahoo.de> # Surface RT T30
Tested-by: Robert Eckelmann <longnoserob@gmail.com> # ASUS TF101 T20
Tested-by: Agneli <poczt@protonmail.ch> # Toshiba AC100 T20
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # LG P895 T30
Co-developed-by: Jonas Schwöbel <jonasschwoebel@yahoo.de>
Signed-off-by: Jonas Schwöbel <jonasschwoebel@yahoo.de>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 drivers/timer/Kconfig       |   8 +++
 drivers/timer/Makefile      |   1 +
 drivers/timer/tegra-timer.c | 130 ++++++++++++++++++++++++++++++++++++
 3 files changed, 139 insertions(+)
 create mode 100644 drivers/timer/tegra-timer.c

diff --git a/drivers/timer/Kconfig b/drivers/timer/Kconfig
index 6d6665005c..f32bd16227 100644
--- a/drivers/timer/Kconfig
+++ b/drivers/timer/Kconfig
@@ -252,6 +252,14 @@ config STM32_TIMER
 	  Select this to enable support for the timer found on
 	  STM32 devices.
 
+config TEGRA_TIMER
+	bool "Tegra timer support"
+	depends on TIMER
+	select TIMER_EARLY
+	help
+	  Select this to enable support for the timer found on
+	  Tegra devices.
+
 config X86_TSC_TIMER
 	bool "x86 Time-Stamp Counter (TSC) timer support"
 	depends on TIMER && X86
diff --git a/drivers/timer/Makefile b/drivers/timer/Makefile
index 6470fd5426..3c92113fc6 100644
--- a/drivers/timer/Makefile
+++ b/drivers/timer/Makefile
@@ -27,6 +27,7 @@ obj-$(CONFIG_SP804_TIMER)	+= sp804_timer.o
 obj-$(CONFIG_$(SPL_)SIFIVE_CLINT) += sifive_clint_timer.o
 obj-$(CONFIG_ARM_GLOBAL_TIMER)	+= arm_global_timer.o
 obj-$(CONFIG_STM32_TIMER)	+= stm32_timer.o
+obj-$(CONFIG_TEGRA_TIMER)	+= tegra-timer.o
 obj-$(CONFIG_X86_TSC_TIMER)	+= tsc_timer.o
 obj-$(CONFIG_MTK_TIMER)		+= mtk_timer.o
 obj-$(CONFIG_MCHP_PIT64B_TIMER)	+= mchp-pit64b-timer.o
diff --git a/drivers/timer/tegra-timer.c b/drivers/timer/tegra-timer.c
new file mode 100644
index 0000000000..a867c649c3
--- /dev/null
+++ b/drivers/timer/tegra-timer.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022 Svyatoslav Ryhel <clamor95@gmail.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <timer.h>
+
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/tegra.h>
+
+#define TEGRA_OSC_CLK_ENB_L_SET		(NV_PA_CLK_RST_BASE + 0x320)
+#define TEGRA_OSC_SET_CLK_ENB_TMR	BIT(5)
+
+#define TEGRA_TIMER_USEC_CNTR		(NV_PA_TMRUS_BASE + 0)
+#define TEGRA_TIMER_USEC_CFG		(NV_PA_TMRUS_BASE + 4)
+
+#define TEGRA_TIMER_RATE		1000000 /* 1 MHz */
+
+/*
+ * On pre-DM stage timer should be left configured by
+ * previous bootloader for correct 1MHz clock.
+ * In the case of reset default value is set to 1/13 of
+ * CLK_M which should be decent enough to safely
+ * get to DM stage.
+ */
+u64 notrace timer_early_get_count(void)
+{
+	/* At this stage raw timer is used */
+	return readl(TEGRA_TIMER_USEC_CNTR);
+}
+
+unsigned long notrace timer_early_get_rate(void)
+{
+	return TEGRA_TIMER_RATE;
+}
+
+ulong timer_get_boot_us(void)
+{
+	return timer_early_get_count();
+}
+
+/*
+ * At moment of calling get_count, timer driver is already
+ * probed and is configured to have precise 1MHz clock.
+ * Tegra timer has a step of 1 microsecond which removes
+ * need of using adjusments involving uc_priv->clock_rate.
+ */
+static notrace u64 tegra_timer_get_count(struct udevice *dev)
+{
+	u32 val = timer_early_get_count();
+	return timer_conv_64(val);
+}
+
+static int tegra_timer_probe(struct udevice *dev)
+{
+	struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
+	u32 usec_config, value;
+
+	/* Timer rate has to be set unconditionally */
+	uc_priv->clock_rate = TEGRA_TIMER_RATE;
+
+	/*
+	 * Configure microsecond timers to have 1MHz clock
+	 * Config register is 0xqqww, where qq is "dividend", ww is "divisor"
+	 * Uses n+1 scheme
+	 */
+	switch (clock_get_rate(CLOCK_ID_CLK_M)) {
+	case 12000000:
+		usec_config = 0x000b; /* (11+1)/(0+1) */
+		break;
+	case 12800000:
+		usec_config = 0x043f; /* (63+1)/(4+1) */
+		break;
+	case 13000000:
+		usec_config = 0x000c; /* (12+1)/(0+1) */
+		break;
+	case 16800000:
+		usec_config = 0x0453; /* (83+1)/(4+1) */
+		break;
+	case 19200000:
+		usec_config = 0x045f; /* (95+1)/(4+1) */
+		break;
+	case 26000000:
+		usec_config = 0x0019; /* (25+1)/(0+1) */
+		break;
+	case 38400000:
+		usec_config = 0x04bf; /* (191+1)/(4+1) */
+		break;
+	case 48000000:
+		usec_config = 0x002f; /* (47+1)/(0+1) */
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* Enable clock to timer hardware */
+	value = readl_relaxed(TEGRA_OSC_CLK_ENB_L_SET);
+	writel_relaxed(value | TEGRA_OSC_SET_CLK_ENB_TMR,
+		       TEGRA_OSC_CLK_ENB_L_SET);
+
+	writel_relaxed(usec_config, TEGRA_TIMER_USEC_CFG);
+
+	return 0;
+}
+
+static const struct timer_ops tegra_timer_ops = {
+	.get_count = tegra_timer_get_count,
+};
+
+static const struct udevice_id tegra_timer_ids[] = {
+	{ .compatible = "nvidia,tegra20-timer" },
+	{ .compatible = "nvidia,tegra30-timer" },
+	{ .compatible = "nvidia,tegra114-timer" },
+	{ .compatible = "nvidia,tegra124-timer" },
+	{ .compatible = "nvidia,tegra210-timer" },
+	{ }
+};
+
+U_BOOT_DRIVER(tegra_timer) = {
+	.name		= "tegra_timer",
+	.id		= UCLASS_TIMER,
+	.of_match	= tegra_timer_ids,
+	.probe		= tegra_timer_probe,
+	.ops		= &tegra_timer_ops,
+	.flags		= DM_FLAG_PRE_RELOC,
+};
-- 
2.37.2

[PATCH v7 3/3] ARM: tegra: include timer as default option

[Svyatoslav Ryhel]

Enable TIMER as default option for all Tegra devices and
enable TEGRA_TIMER for TEGRA_ARMV7_COMMON and TEGRA210.
Additionally enable SPL_TIMER if build as SPL part and
drop deprecated configs from common header.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 arch/arm/Kconfig               | 1 +
 arch/arm/mach-tegra/Kconfig    | 3 +++
 include/configs/tegra-common.h | 6 ------
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c9a44ebc22..92cf509e97 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1284,6 +1284,7 @@ config ARCH_TEGRA
 	select GPIO_EXTRA_HEADER
 	imply DISTRO_DEFAULTS
 	imply FAT_WRITE
+	imply SPL_TIMER if SPL
 
 config ARCH_VEXPRESS64
 	bool "Support ARMv8 Arm Ltd. VExpress based boards and models"
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 1b575cc0f4..b50eec5b8c 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -56,6 +56,7 @@ config TEGRA_COMMON
 	select MISC
 	select OF_CONTROL
 	select SPI
+	select TIMER
 	imply CMD_DM
 	imply CRC32_VERIFY
 
@@ -81,6 +82,7 @@ config TEGRA_ARMV7_COMMON
 	select TEGRA_NO_BPMP
 	select TEGRA_PINCTRL
 	select TEGRA_PMC
+	select TEGRA_TIMER
 
 config TEGRA_ARMV8_COMMON
 	bool "Tegra 64-bit common options"
@@ -134,6 +136,7 @@ config TEGRA210
 	select TEGRA_PINCTRL
 	select TEGRA_PMC
 	select TEGRA_PMC_SECURE
+	select TEGRA_TIMER
 
 config TEGRA186
 	bool "Tegra186 family"
diff --git a/include/configs/tegra-common.h b/include/configs/tegra-common.h
index bde7ffce00..c558679d04 100644
--- a/include/configs/tegra-common.h
+++ b/include/configs/tegra-common.h
@@ -15,12 +15,6 @@
 
 #include <asm/arch/tegra.h>		/* get chip and board defs */
 
-/* Use the Tegra US timer on ARMv7, but the architected timer on ARMv8. */
-#ifndef CONFIG_ARM64
-#define CFG_SYS_TIMER_RATE		1000000
-#define CFG_SYS_TIMER_COUNTER	NV_PA_TMRUS_BASE
-#endif
-
 /* Environment */
 
 /*
-- 
2.37.2

Re: [PATCH v7 0/3] Timer support for ARM Tegra

[Thierry Reding]

[-- Attachment #1: Type: text/plain, Size: 3754 bytes --]

On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
> - ARM: tegra: remap clock_osc_freq for all Tegra family
> Enum clock_osc_freq was designed to use only with T20.
> This patch remaps it to use additional frequencies, added in
> T30+ SoC while maintaining backwards compatibility with T20.
> 
> - drivers: timer: add timer driver for ARMv7 based Tegra devices
> Add timer support for T20/T30/T114/T124 and T210 based devices.
> Driver is based on DM, has device tree support and can be
> used on SPL and early boot stage.
> 
> Arm64 Tegra (apart T210) according to comment in tegra-common.h use
> architected timer.
> 
> - ARM: tegra: include timer as default option
> Enable TIMER as default option for all Tegra devices and
> enable TEGRA_TIMER for TEGRA_ARMV7_COMMON and TEGRA210.
> Additionally enable SPL_TIMER if build as SPL part and
> drop deprecated configs from common header.
> 
> P. S. I have no arm64 Tegra and according to comment in 
> tegra-common.h
> Use the Tegra US timer on ARMv7, but the architected timer on ARMv8.
> 
> ---
> Changeog from V6
>  - use clk_m as timer calibration clock (this should properly fix T210)
>  - enable timer for T210
> 
> Changed from v5:
>  - added paz00 tester
> 
> Changed from v4:
>  - added comments
> 
> Changed from v3:
>  - removed BOOTSTAGE ifdefs
>  - use early timer on boot stage unconditionally
> ---
> Svyatoslav Ryhel (3):
>   ARM: tegra: remap clock_osc_freq for all Tegra family
>   drivers: timer: add driver for ARMv7 based Tegra devices and T210
>   ARM: tegra: include timer as default option
> 
>  arch/arm/Kconfig                        |   1 +
>  arch/arm/include/asm/arch-tegra/clock.h |   9 +-
>  arch/arm/mach-tegra/Kconfig             |   3 +
>  arch/arm/mach-tegra/clock.c             |  17 +++-
>  arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
>  arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
>  arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
>  arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
>  arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
>  arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
>  drivers/timer/Kconfig                   |   8 ++
>  drivers/timer/Makefile                  |   1 +
>  drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
>  drivers/usb/host/ehci-tegra.c           |  46 +++++++--
>  include/configs/tegra-common.h          |   6 --
>  15 files changed, 274 insertions(+), 79 deletions(-)
>  create mode 100644 drivers/timer/tegra-timer.c

Ugh... turns out I had completely messed up the testing on Tegra186 and
it wasn't working at all. The problem is that the selection of the TIMER
symbol for all of Tegra causes the driver model to be used, but there is
no DM driver for the architected timer that's used on Tegra186.

The quickest fix would be to do this:

--- >8 ---
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index b50eec5b8c9b..05c8ce0e08dd 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -56,7 +56,6 @@ config TEGRA_COMMON
 	select MISC
 	select OF_CONTROL
 	select SPI
-	select TIMER
 	imply CMD_DM
 	imply CRC32_VERIFY
 
@@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
 	select TEGRA_PINCTRL
 	select TEGRA_PMC
 	select TEGRA_TIMER
+	select TIMER
 
 config TEGRA_ARMV8_COMMON
 	bool "Tegra 64-bit common options"
@@ -137,6 +137,7 @@ config TEGRA210
 	select TEGRA_PMC
 	select TEGRA_PMC_SECURE
 	select TEGRA_TIMER
+	select TIMER
 
 config TEGRA186
 	bool "Tegra186 family"
--- >8 ---

So basically make TIMER selected on everything except Tegra186, so that
on Tegra186 things are basically unmodified.

Thierry

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Re: [PATCH v7 0/3] Timer support for ARM Tegra

[Svyatoslav R.]

On 1/27/23 19:15, Thierry Reding wrote:
> On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
>> - ARM: tegra: remap clock_osc_freq for all Tegra family
>> Enum clock_osc_freq was designed to use only with T20.
>> This patch remaps it to use additional frequencies, added in
>> T30+ SoC while maintaining backwards compatibility with T20.
>>
>> - drivers: timer: add timer driver for ARMv7 based Tegra devices
>> Add timer support for T20/T30/T114/T124 and T210 based devices.
>> Driver is based on DM, has device tree support and can be
>> used on SPL and early boot stage.
>>
>> Arm64 Tegra (apart T210) according to comment in tegra-common.h use
>> architected timer.
>>
>> - ARM: tegra: include timer as default option
>> Enable TIMER as default option for all Tegra devices and
>> enable TEGRA_TIMER for TEGRA_ARMV7_COMMON and TEGRA210.
>> Additionally enable SPL_TIMER if build as SPL part and
>> drop deprecated configs from common header.
>>
>> P. S. I have no arm64 Tegra and according to comment in
>> tegra-common.h
>> Use the Tegra US timer on ARMv7, but the architected timer on ARMv8.
>>
>> ---
>> Changeog from V6
>>   - use clk_m as timer calibration clock (this should properly fix T210)
>>   - enable timer for T210
>>
>> Changed from v5:
>>   - added paz00 tester
>>
>> Changed from v4:
>>   - added comments
>>
>> Changed from v3:
>>   - removed BOOTSTAGE ifdefs
>>   - use early timer on boot stage unconditionally
>> ---
>> Svyatoslav Ryhel (3):
>>    ARM: tegra: remap clock_osc_freq for all Tegra family
>>    drivers: timer: add driver for ARMv7 based Tegra devices and T210
>>    ARM: tegra: include timer as default option
>>
>>   arch/arm/Kconfig                        |   1 +
>>   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
>>   arch/arm/mach-tegra/Kconfig             |   3 +
>>   arch/arm/mach-tegra/clock.c             |  17 +++-
>>   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
>>   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
>>   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
>>   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
>>   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
>>   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
>>   drivers/timer/Kconfig                   |   8 ++
>>   drivers/timer/Makefile                  |   1 +
>>   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
>>   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
>>   include/configs/tegra-common.h          |   6 --
>>   15 files changed, 274 insertions(+), 79 deletions(-)
>>   create mode 100644 drivers/timer/tegra-timer.c
> Ugh... turns out I had completely messed up the testing on Tegra186 and
> it wasn't working at all. The problem is that the selection of the TIMER
> symbol for all of Tegra causes the driver model to be used, but there is
> no DM driver for the architected timer that's used on Tegra186.
>
> The quickest fix would be to do this:
>
> --- >8 ---
> diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
> index b50eec5b8c9b..05c8ce0e08dd 100644
> --- a/arch/arm/mach-tegra/Kconfig
> +++ b/arch/arm/mach-tegra/Kconfig
> @@ -56,7 +56,6 @@ config TEGRA_COMMON
>   	select MISC
>   	select OF_CONTROL
>   	select SPI
> -	select TIMER
>   	imply CMD_DM
>   	imply CRC32_VERIFY
>   
> @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
>   	select TEGRA_PINCTRL
>   	select TEGRA_PMC
>   	select TEGRA_TIMER
> +	select TIMER
>   
>   config TEGRA_ARMV8_COMMON
>   	bool "Tegra 64-bit common options"
> @@ -137,6 +137,7 @@ config TEGRA210
>   	select TEGRA_PMC
>   	select TEGRA_PMC_SECURE
>   	select TEGRA_TIMER
> +	select TIMER
>   
>   config TEGRA186
>   	bool "Tegra186 family"
> --- >8 ---
>
> So basically make TIMER selected on everything except Tegra186, so that
> on Tegra186 things are basically unmodified.

I can propose to include 'select TIMER' directly into TEGRA_TIMER config 
option. This will eliminate need of including it into mach-tegra Kconfigs.

BTW, may you check current patch set on T124 and T210 if those work 
properly. My T30 devices work fine and same as before after switch to 
clk_m as timer calibration clock.

Best Regards, Svyatoslav R.

> Thierry

Re: [PATCH v7 0/3] Timer support for ARM Tegra

[Thierry Reding]

[-- Attachment #1: Type: text/plain, Size: 4817 bytes --]

On Fri, Jan 27, 2023 at 10:27:57PM +0200, Svyatoslav R. wrote:
> On 1/27/23 19:15, Thierry Reding wrote:
> > On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
> > > - ARM: tegra: remap clock_osc_freq for all Tegra family
> > > Enum clock_osc_freq was designed to use only with T20.
> > > This patch remaps it to use additional frequencies, added in
> > > T30+ SoC while maintaining backwards compatibility with T20.
> > > 
> > > - drivers: timer: add timer driver for ARMv7 based Tegra devices
> > > Add timer support for T20/T30/T114/T124 and T210 based devices.
> > > Driver is based on DM, has device tree support and can be
> > > used on SPL and early boot stage.
> > > 
> > > Arm64 Tegra (apart T210) according to comment in tegra-common.h use
> > > architected timer.
> > > 
> > > - ARM: tegra: include timer as default option
> > > Enable TIMER as default option for all Tegra devices and
> > > enable TEGRA_TIMER for TEGRA_ARMV7_COMMON and TEGRA210.
> > > Additionally enable SPL_TIMER if build as SPL part and
> > > drop deprecated configs from common header.
> > > 
> > > P. S. I have no arm64 Tegra and according to comment in
> > > tegra-common.h
> > > Use the Tegra US timer on ARMv7, but the architected timer on ARMv8.
> > > 
> > > ---
> > > Changeog from V6
> > >   - use clk_m as timer calibration clock (this should properly fix T210)
> > >   - enable timer for T210
> > > 
> > > Changed from v5:
> > >   - added paz00 tester
> > > 
> > > Changed from v4:
> > >   - added comments
> > > 
> > > Changed from v3:
> > >   - removed BOOTSTAGE ifdefs
> > >   - use early timer on boot stage unconditionally
> > > ---
> > > Svyatoslav Ryhel (3):
> > >    ARM: tegra: remap clock_osc_freq for all Tegra family
> > >    drivers: timer: add driver for ARMv7 based Tegra devices and T210
> > >    ARM: tegra: include timer as default option
> > > 
> > >   arch/arm/Kconfig                        |   1 +
> > >   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
> > >   arch/arm/mach-tegra/Kconfig             |   3 +
> > >   arch/arm/mach-tegra/clock.c             |  17 +++-
> > >   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
> > >   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
> > >   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
> > >   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
> > >   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
> > >   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
> > >   drivers/timer/Kconfig                   |   8 ++
> > >   drivers/timer/Makefile                  |   1 +
> > >   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
> > >   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
> > >   include/configs/tegra-common.h          |   6 --
> > >   15 files changed, 274 insertions(+), 79 deletions(-)
> > >   create mode 100644 drivers/timer/tegra-timer.c
> > Ugh... turns out I had completely messed up the testing on Tegra186 and
> > it wasn't working at all. The problem is that the selection of the TIMER
> > symbol for all of Tegra causes the driver model to be used, but there is
> > no DM driver for the architected timer that's used on Tegra186.
> > 
> > The quickest fix would be to do this:
> > 
> > --- >8 ---
> > diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
> > index b50eec5b8c9b..05c8ce0e08dd 100644
> > --- a/arch/arm/mach-tegra/Kconfig
> > +++ b/arch/arm/mach-tegra/Kconfig
> > @@ -56,7 +56,6 @@ config TEGRA_COMMON
> >   	select MISC
> >   	select OF_CONTROL
> >   	select SPI
> > -	select TIMER
> >   	imply CMD_DM
> >   	imply CRC32_VERIFY
> > @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
> >   	select TEGRA_PINCTRL
> >   	select TEGRA_PMC
> >   	select TEGRA_TIMER
> > +	select TIMER
> >   config TEGRA_ARMV8_COMMON
> >   	bool "Tegra 64-bit common options"
> > @@ -137,6 +137,7 @@ config TEGRA210
> >   	select TEGRA_PMC
> >   	select TEGRA_PMC_SECURE
> >   	select TEGRA_TIMER
> > +	select TIMER
> >   config TEGRA186
> >   	bool "Tegra186 family"
> > --- >8 ---
> > 
> > So basically make TIMER selected on everything except Tegra186, so that
> > on Tegra186 things are basically unmodified.
> 
> I can propose to include 'select TIMER' directly into TEGRA_TIMER config
> option. This will eliminate need of including it into mach-tegra Kconfigs.

TEGRA_TIMER itself depends on TIMER, which is a more correct dependency
given how that's all structured.

> BTW, may you check current patch set on T124 and T210 if those work
> properly. My T30 devices work fine and same as before after switch to clk_m
> as timer calibration clock.

With the above on top, the series works fine on Tegra124, Tegra210 and
Tegra186.

Thierry

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Re: [PATCH v7 0/3] Timer support for ARM Tegra

[Svyatoslav Ryhel]

Thanks. In this case we should stick with clk_m use and add TIMER
config into non-T186 places of mach-tegra Kconfig. That should be it.

вт, 31 січ. 2023 р. о 17:17 Thierry Reding <thierry.reding@gmail.com> пише:
>
> On Fri, Jan 27, 2023 at 10:27:57PM +0200, Svyatoslav R. wrote:
> > On 1/27/23 19:15, Thierry Reding wrote:
> > > On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
> > > > - ARM: tegra: remap clock_osc_freq for all Tegra family
> > > > Enum clock_osc_freq was designed to use only with T20.
> > > > This patch remaps it to use additional frequencies, added in
> > > > T30+ SoC while maintaining backwards compatibility with T20.
> > > >
> > > > - drivers: timer: add timer driver for ARMv7 based Tegra devices
> > > > Add timer support for T20/T30/T114/T124 and T210 based devices.
> > > > Driver is based on DM, has device tree support and can be
> > > > used on SPL and early boot stage.
> > > >
> > > > Arm64 Tegra (apart T210) according to comment in tegra-common.h use
> > > > architected timer.
> > > >
> > > > - ARM: tegra: include timer as default option
> > > > Enable TIMER as default option for all Tegra devices and
> > > > enable TEGRA_TIMER for TEGRA_ARMV7_COMMON and TEGRA210.
> > > > Additionally enable SPL_TIMER if build as SPL part and
> > > > drop deprecated configs from common header.
> > > >
> > > > P. S. I have no arm64 Tegra and according to comment in
> > > > tegra-common.h
> > > > Use the Tegra US timer on ARMv7, but the architected timer on ARMv8.
> > > >
> > > > ---
> > > > Changeog from V6
> > > >   - use clk_m as timer calibration clock (this should properly fix T210)
> > > >   - enable timer for T210
> > > >
> > > > Changed from v5:
> > > >   - added paz00 tester
> > > >
> > > > Changed from v4:
> > > >   - added comments
> > > >
> > > > Changed from v3:
> > > >   - removed BOOTSTAGE ifdefs
> > > >   - use early timer on boot stage unconditionally
> > > > ---
> > > > Svyatoslav Ryhel (3):
> > > >    ARM: tegra: remap clock_osc_freq for all Tegra family
> > > >    drivers: timer: add driver for ARMv7 based Tegra devices and T210
> > > >    ARM: tegra: include timer as default option
> > > >
> > > >   arch/arm/Kconfig                        |   1 +
> > > >   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
> > > >   arch/arm/mach-tegra/Kconfig             |   3 +
> > > >   arch/arm/mach-tegra/clock.c             |  17 +++-
> > > >   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
> > > >   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
> > > >   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
> > > >   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
> > > >   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
> > > >   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
> > > >   drivers/timer/Kconfig                   |   8 ++
> > > >   drivers/timer/Makefile                  |   1 +
> > > >   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
> > > >   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
> > > >   include/configs/tegra-common.h          |   6 --
> > > >   15 files changed, 274 insertions(+), 79 deletions(-)
> > > >   create mode 100644 drivers/timer/tegra-timer.c
> > > Ugh... turns out I had completely messed up the testing on Tegra186 and
> > > it wasn't working at all. The problem is that the selection of the TIMER
> > > symbol for all of Tegra causes the driver model to be used, but there is
> > > no DM driver for the architected timer that's used on Tegra186.
> > >
> > > The quickest fix would be to do this:
> > >
> > > --- >8 ---
> > > diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
> > > index b50eec5b8c9b..05c8ce0e08dd 100644
> > > --- a/arch/arm/mach-tegra/Kconfig
> > > +++ b/arch/arm/mach-tegra/Kconfig
> > > @@ -56,7 +56,6 @@ config TEGRA_COMMON
> > >     select MISC
> > >     select OF_CONTROL
> > >     select SPI
> > > -   select TIMER
> > >     imply CMD_DM
> > >     imply CRC32_VERIFY
> > > @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
> > >     select TEGRA_PINCTRL
> > >     select TEGRA_PMC
> > >     select TEGRA_TIMER
> > > +   select TIMER
> > >   config TEGRA_ARMV8_COMMON
> > >     bool "Tegra 64-bit common options"
> > > @@ -137,6 +137,7 @@ config TEGRA210
> > >     select TEGRA_PMC
> > >     select TEGRA_PMC_SECURE
> > >     select TEGRA_TIMER
> > > +   select TIMER
> > >   config TEGRA186
> > >     bool "Tegra186 family"
> > > --- >8 ---
> > >
> > > So basically make TIMER selected on everything except Tegra186, so that
> > > on Tegra186 things are basically unmodified.
> >
> > I can propose to include 'select TIMER' directly into TEGRA_TIMER config
> > option. This will eliminate need of including it into mach-tegra Kconfigs.
>
> TEGRA_TIMER itself depends on TIMER, which is a more correct dependency
> given how that's all structured.
>
> > BTW, may you check current patch set on T124 and T210 if those work
> > properly. My T30 devices work fine and same as before after switch to clk_m
> > as timer calibration clock.
>
> With the above on top, the series works fine on Tegra124, Tegra210 and
> Tegra186.
>
> Thierry

RE: [PATCH v7 0/3] Timer support for ARM Tegra

[Tom Warren]

Has this been tested yet? I want to get it into the next PR, and I need a tested-by for V7 before I can do that.

Thanks,

Tom

-----Original Message-----
From: Svyatoslav R. <clamor95@gmail.com> 
Sent: Friday, January 27, 2023 1:28 PM
To: Thierry Reding <thierry.reding@gmail.com>
Cc: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Tom Warren <twarren@nvidia.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; u-boot@lists.denx.de
Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra

External email: Use caution opening links or attachments


On 1/27/23 19:15, Thierry Reding wrote:
> On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
>> - ARM: tegra: remap clock_osc_freq for all Tegra family Enum 
>> clock_osc_freq was designed to use only with T20.
>> This patch remaps it to use additional frequencies, added in
>> T30+ SoC while maintaining backwards compatibility with T20.
>>
>> - drivers: timer: add timer driver for ARMv7 based Tegra devices Add 
>> timer support for T20/T30/T114/T124 and T210 based devices.
>> Driver is based on DM, has device tree support and can be used on SPL 
>> and early boot stage.
>>
>> Arm64 Tegra (apart T210) according to comment in tegra-common.h use 
>> architected timer.
>>
>> - ARM: tegra: include timer as default option Enable TIMER as default 
>> option for all Tegra devices and enable TEGRA_TIMER for 
>> TEGRA_ARMV7_COMMON and TEGRA210.
>> Additionally enable SPL_TIMER if build as SPL part and drop 
>> deprecated configs from common header.
>>
>> P. S. I have no arm64 Tegra and according to comment in 
>> tegra-common.h Use the Tegra US timer on ARMv7, but the architected 
>> timer on ARMv8.
>>
>> ---
>> Changeog from V6
>>   - use clk_m as timer calibration clock (this should properly fix T210)
>>   - enable timer for T210
>>
>> Changed from v5:
>>   - added paz00 tester
>>
>> Changed from v4:
>>   - added comments
>>
>> Changed from v3:
>>   - removed BOOTSTAGE ifdefs
>>   - use early timer on boot stage unconditionally
>> ---
>> Svyatoslav Ryhel (3):
>>    ARM: tegra: remap clock_osc_freq for all Tegra family
>>    drivers: timer: add driver for ARMv7 based Tegra devices and T210
>>    ARM: tegra: include timer as default option
>>
>>   arch/arm/Kconfig                        |   1 +
>>   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
>>   arch/arm/mach-tegra/Kconfig             |   3 +
>>   arch/arm/mach-tegra/clock.c             |  17 +++-
>>   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
>>   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
>>   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
>>   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
>>   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
>>   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
>>   drivers/timer/Kconfig                   |   8 ++
>>   drivers/timer/Makefile                  |   1 +
>>   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
>>   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
>>   include/configs/tegra-common.h          |   6 --
>>   15 files changed, 274 insertions(+), 79 deletions(-)
>>   create mode 100644 drivers/timer/tegra-timer.c
> Ugh... turns out I had completely messed up the testing on Tegra186 
> and it wasn't working at all. The problem is that the selection of the 
> TIMER symbol for all of Tegra causes the driver model to be used, but 
> there is no DM driver for the architected timer that's used on Tegra186.
>
> The quickest fix would be to do this:
>
> --- >8 ---
> diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig 
> index b50eec5b8c9b..05c8ce0e08dd 100644
> --- a/arch/arm/mach-tegra/Kconfig
> +++ b/arch/arm/mach-tegra/Kconfig
> @@ -56,7 +56,6 @@ config TEGRA_COMMON
>       select MISC
>       select OF_CONTROL
>       select SPI
> -     select TIMER
>       imply CMD_DM
>       imply CRC32_VERIFY
>
> @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
>       select TEGRA_PINCTRL
>       select TEGRA_PMC
>       select TEGRA_TIMER
> +     select TIMER
>
>   config TEGRA_ARMV8_COMMON
>       bool "Tegra 64-bit common options"
> @@ -137,6 +137,7 @@ config TEGRA210
>       select TEGRA_PMC
>       select TEGRA_PMC_SECURE
>       select TEGRA_TIMER
> +     select TIMER
>
>   config TEGRA186
>       bool "Tegra186 family"
> --- >8 ---
>
> So basically make TIMER selected on everything except Tegra186, so 
> that on Tegra186 things are basically unmodified.

I can propose to include 'select TIMER' directly into TEGRA_TIMER config option. This will eliminate need of including it into mach-tegra Kconfigs.

BTW, may you check current patch set on T124 and T210 if those work properly. My T30 devices work fine and same as before after switch to clk_m as timer calibration clock.

Best Regards, Svyatoslav R.

> Thierry

Re: [PATCH v7 0/3] Timer support for ARM Tegra

[Svyatoslav Ryhel]

Yes, it works perfectly fine on the T20/T30/T124/T186 and T210, T114
board no one has on hand. Timer enabling has to be adjusted as Thierry
suggested.

вт, 31 січ. 2023 р. о 17:18 Tom Warren <TWarren@nvidia.com> пише:
>
> Has this been tested yet? I want to get it into the next PR, and I need a tested-by for V7 before I can do that.
>
> Thanks,
>
> Tom
>
> -----Original Message-----
> From: Svyatoslav R. <clamor95@gmail.com>
> Sent: Friday, January 27, 2023 1:28 PM
> To: Thierry Reding <thierry.reding@gmail.com>
> Cc: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Tom Warren <twarren@nvidia.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; u-boot@lists.denx.de
> Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
>
> External email: Use caution opening links or attachments
>
>
> On 1/27/23 19:15, Thierry Reding wrote:
> > On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
> >> - ARM: tegra: remap clock_osc_freq for all Tegra family Enum
> >> clock_osc_freq was designed to use only with T20.
> >> This patch remaps it to use additional frequencies, added in
> >> T30+ SoC while maintaining backwards compatibility with T20.
> >>
> >> - drivers: timer: add timer driver for ARMv7 based Tegra devices Add
> >> timer support for T20/T30/T114/T124 and T210 based devices.
> >> Driver is based on DM, has device tree support and can be used on SPL
> >> and early boot stage.
> >>
> >> Arm64 Tegra (apart T210) according to comment in tegra-common.h use
> >> architected timer.
> >>
> >> - ARM: tegra: include timer as default option Enable TIMER as default
> >> option for all Tegra devices and enable TEGRA_TIMER for
> >> TEGRA_ARMV7_COMMON and TEGRA210.
> >> Additionally enable SPL_TIMER if build as SPL part and drop
> >> deprecated configs from common header.
> >>
> >> P. S. I have no arm64 Tegra and according to comment in
> >> tegra-common.h Use the Tegra US timer on ARMv7, but the architected
> >> timer on ARMv8.
> >>
> >> ---
> >> Changeog from V6
> >>   - use clk_m as timer calibration clock (this should properly fix T210)
> >>   - enable timer for T210
> >>
> >> Changed from v5:
> >>   - added paz00 tester
> >>
> >> Changed from v4:
> >>   - added comments
> >>
> >> Changed from v3:
> >>   - removed BOOTSTAGE ifdefs
> >>   - use early timer on boot stage unconditionally
> >> ---
> >> Svyatoslav Ryhel (3):
> >>    ARM: tegra: remap clock_osc_freq for all Tegra family
> >>    drivers: timer: add driver for ARMv7 based Tegra devices and T210
> >>    ARM: tegra: include timer as default option
> >>
> >>   arch/arm/Kconfig                        |   1 +
> >>   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
> >>   arch/arm/mach-tegra/Kconfig             |   3 +
> >>   arch/arm/mach-tegra/clock.c             |  17 +++-
> >>   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
> >>   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
> >>   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
> >>   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
> >>   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
> >>   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
> >>   drivers/timer/Kconfig                   |   8 ++
> >>   drivers/timer/Makefile                  |   1 +
> >>   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
> >>   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
> >>   include/configs/tegra-common.h          |   6 --
> >>   15 files changed, 274 insertions(+), 79 deletions(-)
> >>   create mode 100644 drivers/timer/tegra-timer.c
> > Ugh... turns out I had completely messed up the testing on Tegra186
> > and it wasn't working at all. The problem is that the selection of the
> > TIMER symbol for all of Tegra causes the driver model to be used, but
> > there is no DM driver for the architected timer that's used on Tegra186.
> >
> > The quickest fix would be to do this:
> >
> > --- >8 ---
> > diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
> > index b50eec5b8c9b..05c8ce0e08dd 100644
> > --- a/arch/arm/mach-tegra/Kconfig
> > +++ b/arch/arm/mach-tegra/Kconfig
> > @@ -56,7 +56,6 @@ config TEGRA_COMMON
> >       select MISC
> >       select OF_CONTROL
> >       select SPI
> > -     select TIMER
> >       imply CMD_DM
> >       imply CRC32_VERIFY
> >
> > @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
> >       select TEGRA_PINCTRL
> >       select TEGRA_PMC
> >       select TEGRA_TIMER
> > +     select TIMER
> >
> >   config TEGRA_ARMV8_COMMON
> >       bool "Tegra 64-bit common options"
> > @@ -137,6 +137,7 @@ config TEGRA210
> >       select TEGRA_PMC
> >       select TEGRA_PMC_SECURE
> >       select TEGRA_TIMER
> > +     select TIMER
> >
> >   config TEGRA186
> >       bool "Tegra186 family"
> > --- >8 ---
> >
> > So basically make TIMER selected on everything except Tegra186, so
> > that on Tegra186 things are basically unmodified.
>
> I can propose to include 'select TIMER' directly into TEGRA_TIMER config option. This will eliminate need of including it into mach-tegra Kconfigs.
>
> BTW, may you check current patch set on T124 and T210 if those work properly. My T30 devices work fine and same as before after switch to clk_m as timer calibration clock.
>
> Best Regards, Svyatoslav R.
>
> > Thierry

RE: [PATCH v7 0/3] Timer support for ARM Tegra

[Tom Warren]

OK, I'll wait for your v8 with the adjusted timer enabling.

Does this series need to go in first before your recent 16-patch series "General Tegra improvements"? i.e. are there any dependencies?

Tom
-----Original Message-----
From: Svyatoslav Ryhel <clamor95@gmail.com> 
Sent: Tuesday, January 31, 2023 8:26 AM
To: Tom Warren <TWarren@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>; Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; u-boot@lists.denx.de
Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra

External email: Use caution opening links or attachments


Yes, it works perfectly fine on the T20/T30/T124/T186 and T210, T114 board no one has on hand. Timer enabling has to be adjusted as Thierry suggested.

вт, 31 січ. 2023 р. о 17:18 Tom Warren <TWarren@nvidia.com> пише:
>
> Has this been tested yet? I want to get it into the next PR, and I need a tested-by for V7 before I can do that.
>
> Thanks,
>
> Tom
>
> -----Original Message-----
> From: Svyatoslav R. <clamor95@gmail.com>
> Sent: Friday, January 27, 2023 1:28 PM
> To: Thierry Reding <thierry.reding@gmail.com>
> Cc: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Tom Warren 
> <twarren@nvidia.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm 
> <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas 
> Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>; 
> Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek 
> <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev 
> <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon 
> Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William 
> Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>; 
> Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre 
> Przywara <andre.przywara@arm.com>; Jaehoon Chung 
> <jh80.chung@samsung.com>; u-boot@lists.denx.de
> Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
>
> External email: Use caution opening links or attachments
>
>
> On 1/27/23 19:15, Thierry Reding wrote:
> > On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
> >> - ARM: tegra: remap clock_osc_freq for all Tegra family Enum 
> >> clock_osc_freq was designed to use only with T20.
> >> This patch remaps it to use additional frequencies, added in
> >> T30+ SoC while maintaining backwards compatibility with T20.
> >>
> >> - drivers: timer: add timer driver for ARMv7 based Tegra devices 
> >> Add timer support for T20/T30/T114/T124 and T210 based devices.
> >> Driver is based on DM, has device tree support and can be used on 
> >> SPL and early boot stage.
> >>
> >> Arm64 Tegra (apart T210) according to comment in tegra-common.h use 
> >> architected timer.
> >>
> >> - ARM: tegra: include timer as default option Enable TIMER as 
> >> default option for all Tegra devices and enable TEGRA_TIMER for 
> >> TEGRA_ARMV7_COMMON and TEGRA210.
> >> Additionally enable SPL_TIMER if build as SPL part and drop 
> >> deprecated configs from common header.
> >>
> >> P. S. I have no arm64 Tegra and according to comment in 
> >> tegra-common.h Use the Tegra US timer on ARMv7, but the architected 
> >> timer on ARMv8.
> >>
> >> ---
> >> Changeog from V6
> >>   - use clk_m as timer calibration clock (this should properly fix T210)
> >>   - enable timer for T210
> >>
> >> Changed from v5:
> >>   - added paz00 tester
> >>
> >> Changed from v4:
> >>   - added comments
> >>
> >> Changed from v3:
> >>   - removed BOOTSTAGE ifdefs
> >>   - use early timer on boot stage unconditionally
> >> ---
> >> Svyatoslav Ryhel (3):
> >>    ARM: tegra: remap clock_osc_freq for all Tegra family
> >>    drivers: timer: add driver for ARMv7 based Tegra devices and T210
> >>    ARM: tegra: include timer as default option
> >>
> >>   arch/arm/Kconfig                        |   1 +
> >>   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
> >>   arch/arm/mach-tegra/Kconfig             |   3 +
> >>   arch/arm/mach-tegra/clock.c             |  17 +++-
> >>   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
> >>   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
> >>   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
> >>   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
> >>   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
> >>   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
> >>   drivers/timer/Kconfig                   |   8 ++
> >>   drivers/timer/Makefile                  |   1 +
> >>   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
> >>   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
> >>   include/configs/tegra-common.h          |   6 --
> >>   15 files changed, 274 insertions(+), 79 deletions(-)
> >>   create mode 100644 drivers/timer/tegra-timer.c
> > Ugh... turns out I had completely messed up the testing on Tegra186 
> > and it wasn't working at all. The problem is that the selection of 
> > the TIMER symbol for all of Tegra causes the driver model to be 
> > used, but there is no DM driver for the architected timer that's used on Tegra186.
> >
> > The quickest fix would be to do this:
> >
> > --- >8 ---
> > diff --git a/arch/arm/mach-tegra/Kconfig 
> > b/arch/arm/mach-tegra/Kconfig index b50eec5b8c9b..05c8ce0e08dd 
> > 100644
> > --- a/arch/arm/mach-tegra/Kconfig
> > +++ b/arch/arm/mach-tegra/Kconfig
> > @@ -56,7 +56,6 @@ config TEGRA_COMMON
> >       select MISC
> >       select OF_CONTROL
> >       select SPI
> > -     select TIMER
> >       imply CMD_DM
> >       imply CRC32_VERIFY
> >
> > @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
> >       select TEGRA_PINCTRL
> >       select TEGRA_PMC
> >       select TEGRA_TIMER
> > +     select TIMER
> >
> >   config TEGRA_ARMV8_COMMON
> >       bool "Tegra 64-bit common options"
> > @@ -137,6 +137,7 @@ config TEGRA210
> >       select TEGRA_PMC
> >       select TEGRA_PMC_SECURE
> >       select TEGRA_TIMER
> > +     select TIMER
> >
> >   config TEGRA186
> >       bool "Tegra186 family"
> > --- >8 ---
> >
> > So basically make TIMER selected on everything except Tegra186, so 
> > that on Tegra186 things are basically unmodified.
>
> I can propose to include 'select TIMER' directly into TEGRA_TIMER config option. This will eliminate need of including it into mach-tegra Kconfigs.
>
> BTW, may you check current patch set on T124 and T210 if those work properly. My T30 devices work fine and same as before after switch to clk_m as timer calibration clock.
>
> Best Regards, Svyatoslav R.
>
> > Thierry

Re: [PATCH v7 0/3] Timer support for ARM Tegra

[Svyatoslav Ryhel]

I will upload v8 tomorrow once I have some time.

Yes, Timer series should go first since some clock related commits of
"General Tegra improvements" may conflict. Those are not direct
dependencies but rather changed code overlaps.

Thanks

Best Regards.
Svyatoslav R.

вт, 31 січ. 2023 р. о 22:27 Tom Warren <TWarren@nvidia.com> пише:
>
> OK, I'll wait for your v8 with the adjusted timer enabling.
>
> Does this series need to go in first before your recent 16-patch series "General Tegra improvements"? i.e. are there any dependencies?
>
> Tom
> -----Original Message-----
> From: Svyatoslav Ryhel <clamor95@gmail.com>
> Sent: Tuesday, January 31, 2023 8:26 AM
> To: Tom Warren <TWarren@nvidia.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>; Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; u-boot@lists.denx.de
> Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
>
> External email: Use caution opening links or attachments
>
>
> Yes, it works perfectly fine on the T20/T30/T124/T186 and T210, T114 board no one has on hand. Timer enabling has to be adjusted as Thierry suggested.
>
> вт, 31 січ. 2023 р. о 17:18 Tom Warren <TWarren@nvidia.com> пише:
> >
> > Has this been tested yet? I want to get it into the next PR, and I need a tested-by for V7 before I can do that.
> >
> > Thanks,
> >
> > Tom
> >
> > -----Original Message-----
> > From: Svyatoslav R. <clamor95@gmail.com>
> > Sent: Friday, January 27, 2023 1:28 PM
> > To: Thierry Reding <thierry.reding@gmail.com>
> > Cc: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Tom Warren
> > <twarren@nvidia.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm
> > <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas
> > Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>;
> > Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek
> > <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev
> > <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon
> > Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William
> > Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>;
> > Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre
> > Przywara <andre.przywara@arm.com>; Jaehoon Chung
> > <jh80.chung@samsung.com>; u-boot@lists.denx.de
> > Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
> >
> > External email: Use caution opening links or attachments
> >
> >
> > On 1/27/23 19:15, Thierry Reding wrote:
> > > On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
> > >> - ARM: tegra: remap clock_osc_freq for all Tegra family Enum
> > >> clock_osc_freq was designed to use only with T20.
> > >> This patch remaps it to use additional frequencies, added in
> > >> T30+ SoC while maintaining backwards compatibility with T20.
> > >>
> > >> - drivers: timer: add timer driver for ARMv7 based Tegra devices
> > >> Add timer support for T20/T30/T114/T124 and T210 based devices.
> > >> Driver is based on DM, has device tree support and can be used on
> > >> SPL and early boot stage.
> > >>
> > >> Arm64 Tegra (apart T210) according to comment in tegra-common.h use
> > >> architected timer.
> > >>
> > >> - ARM: tegra: include timer as default option Enable TIMER as
> > >> default option for all Tegra devices and enable TEGRA_TIMER for
> > >> TEGRA_ARMV7_COMMON and TEGRA210.
> > >> Additionally enable SPL_TIMER if build as SPL part and drop
> > >> deprecated configs from common header.
> > >>
> > >> P. S. I have no arm64 Tegra and according to comment in
> > >> tegra-common.h Use the Tegra US timer on ARMv7, but the architected
> > >> timer on ARMv8.
> > >>
> > >> ---
> > >> Changeog from V6
> > >>   - use clk_m as timer calibration clock (this should properly fix T210)
> > >>   - enable timer for T210
> > >>
> > >> Changed from v5:
> > >>   - added paz00 tester
> > >>
> > >> Changed from v4:
> > >>   - added comments
> > >>
> > >> Changed from v3:
> > >>   - removed BOOTSTAGE ifdefs
> > >>   - use early timer on boot stage unconditionally
> > >> ---
> > >> Svyatoslav Ryhel (3):
> > >>    ARM: tegra: remap clock_osc_freq for all Tegra family
> > >>    drivers: timer: add driver for ARMv7 based Tegra devices and T210
> > >>    ARM: tegra: include timer as default option
> > >>
> > >>   arch/arm/Kconfig                        |   1 +
> > >>   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
> > >>   arch/arm/mach-tegra/Kconfig             |   3 +
> > >>   arch/arm/mach-tegra/clock.c             |  17 +++-
> > >>   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
> > >>   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
> > >>   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
> > >>   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
> > >>   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
> > >>   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
> > >>   drivers/timer/Kconfig                   |   8 ++
> > >>   drivers/timer/Makefile                  |   1 +
> > >>   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
> > >>   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
> > >>   include/configs/tegra-common.h          |   6 --
> > >>   15 files changed, 274 insertions(+), 79 deletions(-)
> > >>   create mode 100644 drivers/timer/tegra-timer.c
> > > Ugh... turns out I had completely messed up the testing on Tegra186
> > > and it wasn't working at all. The problem is that the selection of
> > > the TIMER symbol for all of Tegra causes the driver model to be
> > > used, but there is no DM driver for the architected timer that's used on Tegra186.
> > >
> > > The quickest fix would be to do this:
> > >
> > > --- >8 ---
> > > diff --git a/arch/arm/mach-tegra/Kconfig
> > > b/arch/arm/mach-tegra/Kconfig index b50eec5b8c9b..05c8ce0e08dd
> > > 100644
> > > --- a/arch/arm/mach-tegra/Kconfig
> > > +++ b/arch/arm/mach-tegra/Kconfig
> > > @@ -56,7 +56,6 @@ config TEGRA_COMMON
> > >       select MISC
> > >       select OF_CONTROL
> > >       select SPI
> > > -     select TIMER
> > >       imply CMD_DM
> > >       imply CRC32_VERIFY
> > >
> > > @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
> > >       select TEGRA_PINCTRL
> > >       select TEGRA_PMC
> > >       select TEGRA_TIMER
> > > +     select TIMER
> > >
> > >   config TEGRA_ARMV8_COMMON
> > >       bool "Tegra 64-bit common options"
> > > @@ -137,6 +137,7 @@ config TEGRA210
> > >       select TEGRA_PMC
> > >       select TEGRA_PMC_SECURE
> > >       select TEGRA_TIMER
> > > +     select TIMER
> > >
> > >   config TEGRA186
> > >       bool "Tegra186 family"
> > > --- >8 ---
> > >
> > > So basically make TIMER selected on everything except Tegra186, so
> > > that on Tegra186 things are basically unmodified.
> >
> > I can propose to include 'select TIMER' directly into TEGRA_TIMER config option. This will eliminate need of including it into mach-tegra Kconfigs.
> >
> > BTW, may you check current patch set on T124 and T210 if those work properly. My T30 devices work fine and same as before after switch to clk_m as timer calibration clock.
> >
> > Best Regards, Svyatoslav R.
> >
> > > Thierry

RE: [PATCH v7 0/3] Timer support for ARM Tegra

[Tom Warren]

I've merged your 3 timer patches w/TOT u-boot-tegra, and sent a PR to Tom Rini.

However, your v1 16-patch series here does no apply cleanly on top of the new u-boot-tegra/master (fast-forwarded to u-boot/master TOT, and then with your 3 timer patches applied on top). PTAL, git am error spew below:

git am -s --whitespace=strip /home/tom/Downloads/bundle-23280-Svyatoslav-16-v1.mbox
Applying: tegra30: clock: add EXTPERIPH
Applying: ARM: t20/t30: swap host1x and disp1 clock parents
Applying: ARM: tegra: clock: add clk_id_to_pll_id helper
Applying: ARM: tegra: clock: add clock_decode_pair helper
Applying: ARM: tegra30: add PLLD to pll setup
error: patch failed: arch/arm/mach-tegra/clock.c:791
error: arch/arm/mach-tegra/clock.c: patch does not apply
Patch failed at 0005 ARM: tegra30: add PLLD to pll setup
The copy of the patch that failed is found in:
   /home/tom/denx/uboot-tegra/.git/rebase-apply/patch
When you have resolved this problem, run "git am --resolved".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

Tom
-----Original Message-----
From: Svyatoslav Ryhel <clamor95@gmail.com> 
Sent: Tuesday, January 31, 2023 2:53 PM
To: Tom Warren <TWarren@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>; Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; u-boot@lists.denx.de
Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra

External email: Use caution opening links or attachments


I will upload v8 tomorrow once I have some time.

Yes, Timer series should go first since some clock related commits of "General Tegra improvements" may conflict. Those are not direct dependencies but rather changed code overlaps.

Thanks

Best Regards.
Svyatoslav R.

вт, 31 січ. 2023 р. о 22:27 Tom Warren <TWarren@nvidia.com> пише:
>
> OK, I'll wait for your v8 with the adjusted timer enabling.
>
> Does this series need to go in first before your recent 16-patch series "General Tegra improvements"? i.e. are there any dependencies?
>
> Tom
> -----Original Message-----
> From: Svyatoslav Ryhel <clamor95@gmail.com>
> Sent: Tuesday, January 31, 2023 8:26 AM
> To: Tom Warren <TWarren@nvidia.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>; Rayagonda Kokatanur 
> <rayagonda.kokatanur@broadcom.com>; Marek Vasut <marex@denx.de>; Maxim 
> Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; 
> Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli 
> <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; 
> Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen 
> Hristev <eugen.hristev@microchip.com>; Michael Walle 
> <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu 
> <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; 
> Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier 
> <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara 
> <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; 
> u-boot@lists.denx.de
> Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
>
> External email: Use caution opening links or attachments
>
>
> Yes, it works perfectly fine on the T20/T30/T124/T186 and T210, T114 board no one has on hand. Timer enabling has to be adjusted as Thierry suggested.
>
> вт, 31 січ. 2023 р. о 17:18 Tom Warren <TWarren@nvidia.com> пише:
> >
> > Has this been tested yet? I want to get it into the next PR, and I need a tested-by for V7 before I can do that.
> >
> > Thanks,
> >
> > Tom
> >
> > -----Original Message-----
> > From: Svyatoslav R. <clamor95@gmail.com>
> > Sent: Friday, January 27, 2023 1:28 PM
> > To: Thierry Reding <thierry.reding@gmail.com>
> > Cc: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Tom 
> > Warren <twarren@nvidia.com>; Marek Vasut <marex@denx.de>; Maxim 
> > Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko 
> > <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli 
> > <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; 
> > Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; 
> > Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle 
> > <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu 
> > <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; 
> > Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier 
> > <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara 
> > <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; 
> > u-boot@lists.denx.de
> > Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
> >
> > External email: Use caution opening links or attachments
> >
> >
> > On 1/27/23 19:15, Thierry Reding wrote:
> > > On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
> > >> - ARM: tegra: remap clock_osc_freq for all Tegra family Enum 
> > >> clock_osc_freq was designed to use only with T20.
> > >> This patch remaps it to use additional frequencies, added in
> > >> T30+ SoC while maintaining backwards compatibility with T20.
> > >>
> > >> - drivers: timer: add timer driver for ARMv7 based Tegra devices 
> > >> Add timer support for T20/T30/T114/T124 and T210 based devices.
> > >> Driver is based on DM, has device tree support and can be used on 
> > >> SPL and early boot stage.
> > >>
> > >> Arm64 Tegra (apart T210) according to comment in tegra-common.h 
> > >> use architected timer.
> > >>
> > >> - ARM: tegra: include timer as default option Enable TIMER as 
> > >> default option for all Tegra devices and enable TEGRA_TIMER for 
> > >> TEGRA_ARMV7_COMMON and TEGRA210.
> > >> Additionally enable SPL_TIMER if build as SPL part and drop 
> > >> deprecated configs from common header.
> > >>
> > >> P. S. I have no arm64 Tegra and according to comment in 
> > >> tegra-common.h Use the Tegra US timer on ARMv7, but the 
> > >> architected timer on ARMv8.
> > >>
> > >> ---
> > >> Changeog from V6
> > >>   - use clk_m as timer calibration clock (this should properly fix T210)
> > >>   - enable timer for T210
> > >>
> > >> Changed from v5:
> > >>   - added paz00 tester
> > >>
> > >> Changed from v4:
> > >>   - added comments
> > >>
> > >> Changed from v3:
> > >>   - removed BOOTSTAGE ifdefs
> > >>   - use early timer on boot stage unconditionally
> > >> ---
> > >> Svyatoslav Ryhel (3):
> > >>    ARM: tegra: remap clock_osc_freq for all Tegra family
> > >>    drivers: timer: add driver for ARMv7 based Tegra devices and T210
> > >>    ARM: tegra: include timer as default option
> > >>
> > >>   arch/arm/Kconfig                        |   1 +
> > >>   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
> > >>   arch/arm/mach-tegra/Kconfig             |   3 +
> > >>   arch/arm/mach-tegra/clock.c             |  17 +++-
> > >>   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
> > >>   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
> > >>   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
> > >>   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
> > >>   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
> > >>   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
> > >>   drivers/timer/Kconfig                   |   8 ++
> > >>   drivers/timer/Makefile                  |   1 +
> > >>   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
> > >>   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
> > >>   include/configs/tegra-common.h          |   6 --
> > >>   15 files changed, 274 insertions(+), 79 deletions(-)
> > >>   create mode 100644 drivers/timer/tegra-timer.c
> > > Ugh... turns out I had completely messed up the testing on 
> > > Tegra186 and it wasn't working at all. The problem is that the 
> > > selection of the TIMER symbol for all of Tegra causes the driver 
> > > model to be used, but there is no DM driver for the architected timer that's used on Tegra186.
> > >
> > > The quickest fix would be to do this:
> > >
> > > --- >8 ---
> > > diff --git a/arch/arm/mach-tegra/Kconfig 
> > > b/arch/arm/mach-tegra/Kconfig index b50eec5b8c9b..05c8ce0e08dd
> > > 100644
> > > --- a/arch/arm/mach-tegra/Kconfig
> > > +++ b/arch/arm/mach-tegra/Kconfig
> > > @@ -56,7 +56,6 @@ config TEGRA_COMMON
> > >       select MISC
> > >       select OF_CONTROL
> > >       select SPI
> > > -     select TIMER
> > >       imply CMD_DM
> > >       imply CRC32_VERIFY
> > >
> > > @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
> > >       select TEGRA_PINCTRL
> > >       select TEGRA_PMC
> > >       select TEGRA_TIMER
> > > +     select TIMER
> > >
> > >   config TEGRA_ARMV8_COMMON
> > >       bool "Tegra 64-bit common options"
> > > @@ -137,6 +137,7 @@ config TEGRA210
> > >       select TEGRA_PMC
> > >       select TEGRA_PMC_SECURE
> > >       select TEGRA_TIMER
> > > +     select TIMER
> > >
> > >   config TEGRA186
> > >       bool "Tegra186 family"
> > > --- >8 ---
> > >
> > > So basically make TIMER selected on everything except Tegra186, so 
> > > that on Tegra186 things are basically unmodified.
> >
> > I can propose to include 'select TIMER' directly into TEGRA_TIMER config option. This will eliminate need of including it into mach-tegra Kconfigs.
> >
> > BTW, may you check current patch set on T124 and T210 if those work properly. My T30 devices work fine and same as before after switch to clk_m as timer calibration clock.
> >
> > Best Regards, Svyatoslav R.
> >
> > > Thierry

Re: [PATCH v7 0/3] Timer support for ARM Tegra

[Svyatoslav Ryhel]

Hm, you are correct. Patchset I have sent was based on u-boot/master
without timer patches. Now, since those are merged, I need to adjust
them a bit. It is not a big issue since I have some more optimisations
to be added anyway. I will send an updated version within an hour if
nothing interferes.

Thanks.
Best Regards.
Svyatoslav R.

чт, 2 лют. 2023 р. о 19:54 Tom Warren <TWarren@nvidia.com> пише:
>
> I've merged your 3 timer patches w/TOT u-boot-tegra, and sent a PR to Tom Rini.
>
> However, your v1 16-patch series here does no apply cleanly on top of the new u-boot-tegra/master (fast-forwarded to u-boot/master TOT, and then with your 3 timer patches applied on top). PTAL, git am error spew below:
>
> git am -s --whitespace=strip /home/tom/Downloads/bundle-23280-Svyatoslav-16-v1.mbox
> Applying: tegra30: clock: add EXTPERIPH
> Applying: ARM: t20/t30: swap host1x and disp1 clock parents
> Applying: ARM: tegra: clock: add clk_id_to_pll_id helper
> Applying: ARM: tegra: clock: add clock_decode_pair helper
> Applying: ARM: tegra30: add PLLD to pll setup
> error: patch failed: arch/arm/mach-tegra/clock.c:791
> error: arch/arm/mach-tegra/clock.c: patch does not apply
> Patch failed at 0005 ARM: tegra30: add PLLD to pll setup
> The copy of the patch that failed is found in:
>    /home/tom/denx/uboot-tegra/.git/rebase-apply/patch
> When you have resolved this problem, run "git am --resolved".
> If you prefer to skip this patch, run "git am --skip" instead.
> To restore the original branch and stop patching, run "git am --abort".
>
> Tom
> -----Original Message-----
> From: Svyatoslav Ryhel <clamor95@gmail.com>
> Sent: Tuesday, January 31, 2023 2:53 PM
> To: Tom Warren <TWarren@nvidia.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>; Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; u-boot@lists.denx.de
> Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
>
> External email: Use caution opening links or attachments
>
>
> I will upload v8 tomorrow once I have some time.
>
> Yes, Timer series should go first since some clock related commits of "General Tegra improvements" may conflict. Those are not direct dependencies but rather changed code overlaps.
>
> Thanks
>
> Best Regards.
> Svyatoslav R.
>
> вт, 31 січ. 2023 р. о 22:27 Tom Warren <TWarren@nvidia.com> пише:
> >
> > OK, I'll wait for your v8 with the adjusted timer enabling.
> >
> > Does this series need to go in first before your recent 16-patch series "General Tegra improvements"? i.e. are there any dependencies?
> >
> > Tom
> > -----Original Message-----
> > From: Svyatoslav Ryhel <clamor95@gmail.com>
> > Sent: Tuesday, January 31, 2023 8:26 AM
> > To: Tom Warren <TWarren@nvidia.com>
> > Cc: Thierry Reding <thierry.reding@gmail.com>; Rayagonda Kokatanur
> > <rayagonda.kokatanur@broadcom.com>; Marek Vasut <marex@denx.de>; Maxim
> > Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>;
> > Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli
> > <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>;
> > Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen
> > Hristev <eugen.hristev@microchip.com>; Michael Walle
> > <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu
> > <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>;
> > Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier
> > <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara
> > <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>;
> > u-boot@lists.denx.de
> > Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
> >
> > External email: Use caution opening links or attachments
> >
> >
> > Yes, it works perfectly fine on the T20/T30/T124/T186 and T210, T114 board no one has on hand. Timer enabling has to be adjusted as Thierry suggested.
> >
> > вт, 31 січ. 2023 р. о 17:18 Tom Warren <TWarren@nvidia.com> пише:
> > >
> > > Has this been tested yet? I want to get it into the next PR, and I need a tested-by for V7 before I can do that.
> > >
> > > Thanks,
> > >
> > > Tom
> > >
> > > -----Original Message-----
> > > From: Svyatoslav R. <clamor95@gmail.com>
> > > Sent: Friday, January 27, 2023 1:28 PM
> > > To: Thierry Reding <thierry.reding@gmail.com>
> > > Cc: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Tom
> > > Warren <twarren@nvidia.com>; Marek Vasut <marex@denx.de>; Maxim
> > > Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko
> > > <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli
> > > <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>;
> > > Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>;
> > > Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle
> > > <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu
> > > <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>;
> > > Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier
> > > <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara
> > > <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>;
> > > u-boot@lists.denx.de
> > > Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
> > >
> > > External email: Use caution opening links or attachments
> > >
> > >
> > > On 1/27/23 19:15, Thierry Reding wrote:
> > > > On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
> > > >> - ARM: tegra: remap clock_osc_freq for all Tegra family Enum
> > > >> clock_osc_freq was designed to use only with T20.
> > > >> This patch remaps it to use additional frequencies, added in
> > > >> T30+ SoC while maintaining backwards compatibility with T20.
> > > >>
> > > >> - drivers: timer: add timer driver for ARMv7 based Tegra devices
> > > >> Add timer support for T20/T30/T114/T124 and T210 based devices.
> > > >> Driver is based on DM, has device tree support and can be used on
> > > >> SPL and early boot stage.
> > > >>
> > > >> Arm64 Tegra (apart T210) according to comment in tegra-common.h
> > > >> use architected timer.
> > > >>
> > > >> - ARM: tegra: include timer as default option Enable TIMER as
> > > >> default option for all Tegra devices and enable TEGRA_TIMER for
> > > >> TEGRA_ARMV7_COMMON and TEGRA210.
> > > >> Additionally enable SPL_TIMER if build as SPL part and drop
> > > >> deprecated configs from common header.
> > > >>
> > > >> P. S. I have no arm64 Tegra and according to comment in
> > > >> tegra-common.h Use the Tegra US timer on ARMv7, but the
> > > >> architected timer on ARMv8.
> > > >>
> > > >> ---
> > > >> Changeog from V6
> > > >>   - use clk_m as timer calibration clock (this should properly fix T210)
> > > >>   - enable timer for T210
> > > >>
> > > >> Changed from v5:
> > > >>   - added paz00 tester
> > > >>
> > > >> Changed from v4:
> > > >>   - added comments
> > > >>
> > > >> Changed from v3:
> > > >>   - removed BOOTSTAGE ifdefs
> > > >>   - use early timer on boot stage unconditionally
> > > >> ---
> > > >> Svyatoslav Ryhel (3):
> > > >>    ARM: tegra: remap clock_osc_freq for all Tegra family
> > > >>    drivers: timer: add driver for ARMv7 based Tegra devices and T210
> > > >>    ARM: tegra: include timer as default option
> > > >>
> > > >>   arch/arm/Kconfig                        |   1 +
> > > >>   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
> > > >>   arch/arm/mach-tegra/Kconfig             |   3 +
> > > >>   arch/arm/mach-tegra/clock.c             |  17 +++-
> > > >>   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
> > > >>   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
> > > >>   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
> > > >>   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
> > > >>   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
> > > >>   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
> > > >>   drivers/timer/Kconfig                   |   8 ++
> > > >>   drivers/timer/Makefile                  |   1 +
> > > >>   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
> > > >>   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
> > > >>   include/configs/tegra-common.h          |   6 --
> > > >>   15 files changed, 274 insertions(+), 79 deletions(-)
> > > >>   create mode 100644 drivers/timer/tegra-timer.c
> > > > Ugh... turns out I had completely messed up the testing on
> > > > Tegra186 and it wasn't working at all. The problem is that the
> > > > selection of the TIMER symbol for all of Tegra causes the driver
> > > > model to be used, but there is no DM driver for the architected timer that's used on Tegra186.
> > > >
> > > > The quickest fix would be to do this:
> > > >
> > > > --- >8 ---
> > > > diff --git a/arch/arm/mach-tegra/Kconfig
> > > > b/arch/arm/mach-tegra/Kconfig index b50eec5b8c9b..05c8ce0e08dd
> > > > 100644
> > > > --- a/arch/arm/mach-tegra/Kconfig
> > > > +++ b/arch/arm/mach-tegra/Kconfig
> > > > @@ -56,7 +56,6 @@ config TEGRA_COMMON
> > > >       select MISC
> > > >       select OF_CONTROL
> > > >       select SPI
> > > > -     select TIMER
> > > >       imply CMD_DM
> > > >       imply CRC32_VERIFY
> > > >
> > > > @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
> > > >       select TEGRA_PINCTRL
> > > >       select TEGRA_PMC
> > > >       select TEGRA_TIMER
> > > > +     select TIMER
> > > >
> > > >   config TEGRA_ARMV8_COMMON
> > > >       bool "Tegra 64-bit common options"
> > > > @@ -137,6 +137,7 @@ config TEGRA210
> > > >       select TEGRA_PMC
> > > >       select TEGRA_PMC_SECURE
> > > >       select TEGRA_TIMER
> > > > +     select TIMER
> > > >
> > > >   config TEGRA186
> > > >       bool "Tegra186 family"
> > > > --- >8 ---
> > > >
> > > > So basically make TIMER selected on everything except Tegra186, so
> > > > that on Tegra186 things are basically unmodified.
> > >
> > > I can propose to include 'select TIMER' directly into TEGRA_TIMER config option. This will eliminate need of including it into mach-tegra Kconfigs.
> > >
> > > BTW, may you check current patch set on T124 and T210 if those work properly. My T30 devices work fine and same as before after switch to clk_m as timer calibration clock.
> > >
> > > Best Regards, Svyatoslav R.
> > >
> > > > Thierry

Re: [PATCH v7 0/3] Timer support for ARM Tegra

[Svyatoslav Ryhel]

Greetings! This should be it. May you add
Tested-by: Thierry Reding <treding@nvidia.com> # T30, T124, T210
into
drivers: timer: add driver for ARMv7 based Tegra devices and T210
once applying patches? Thanks

вт, 31 січ. 2023 р. о 22:27 Tom Warren <TWarren@nvidia.com> пише:
>
> OK, I'll wait for your v8 with the adjusted timer enabling.
>
> Does this series need to go in first before your recent 16-patch series "General Tegra improvements"? i.e. are there any dependencies?
>
> Tom
> -----Original Message-----
> From: Svyatoslav Ryhel <clamor95@gmail.com>
> Sent: Tuesday, January 31, 2023 8:26 AM
> To: Tom Warren <TWarren@nvidia.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>; Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; u-boot@lists.denx.de
> Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
>
> External email: Use caution opening links or attachments
>
>
> Yes, it works perfectly fine on the T20/T30/T124/T186 and T210, T114 board no one has on hand. Timer enabling has to be adjusted as Thierry suggested.
>
> вт, 31 січ. 2023 р. о 17:18 Tom Warren <TWarren@nvidia.com> пише:
> >
> > Has this been tested yet? I want to get it into the next PR, and I need a tested-by for V7 before I can do that.
> >
> > Thanks,
> >
> > Tom
> >
> > -----Original Message-----
> > From: Svyatoslav R. <clamor95@gmail.com>
> > Sent: Friday, January 27, 2023 1:28 PM
> > To: Thierry Reding <thierry.reding@gmail.com>
> > Cc: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Tom Warren
> > <twarren@nvidia.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm
> > <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas
> > Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>;
> > Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek
> > <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev
> > <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon
> > Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William
> > Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>;
> > Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre
> > Przywara <andre.przywara@arm.com>; Jaehoon Chung
> > <jh80.chung@samsung.com>; u-boot@lists.denx.de
> > Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
> >
> > External email: Use caution opening links or attachments
> >
> >
> > On 1/27/23 19:15, Thierry Reding wrote:
> > > On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
> > >> - ARM: tegra: remap clock_osc_freq for all Tegra family Enum
> > >> clock_osc_freq was designed to use only with T20.
> > >> This patch remaps it to use additional frequencies, added in
> > >> T30+ SoC while maintaining backwards compatibility with T20.
> > >>
> > >> - drivers: timer: add timer driver for ARMv7 based Tegra devices
> > >> Add timer support for T20/T30/T114/T124 and T210 based devices.
> > >> Driver is based on DM, has device tree support and can be used on
> > >> SPL and early boot stage.
> > >>
> > >> Arm64 Tegra (apart T210) according to comment in tegra-common.h use
> > >> architected timer.
> > >>
> > >> - ARM: tegra: include timer as default option Enable TIMER as
> > >> default option for all Tegra devices and enable TEGRA_TIMER for
> > >> TEGRA_ARMV7_COMMON and TEGRA210.
> > >> Additionally enable SPL_TIMER if build as SPL part and drop
> > >> deprecated configs from common header.
> > >>
> > >> P. S. I have no arm64 Tegra and according to comment in
> > >> tegra-common.h Use the Tegra US timer on ARMv7, but the architected
> > >> timer on ARMv8.
> > >>
> > >> ---
> > >> Changeog from V6
> > >>   - use clk_m as timer calibration clock (this should properly fix T210)
> > >>   - enable timer for T210
> > >>
> > >> Changed from v5:
> > >>   - added paz00 tester
> > >>
> > >> Changed from v4:
> > >>   - added comments
> > >>
> > >> Changed from v3:
> > >>   - removed BOOTSTAGE ifdefs
> > >>   - use early timer on boot stage unconditionally
> > >> ---
> > >> Svyatoslav Ryhel (3):
> > >>    ARM: tegra: remap clock_osc_freq for all Tegra family
> > >>    drivers: timer: add driver for ARMv7 based Tegra devices and T210
> > >>    ARM: tegra: include timer as default option
> > >>
> > >>   arch/arm/Kconfig                        |   1 +
> > >>   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
> > >>   arch/arm/mach-tegra/Kconfig             |   3 +
> > >>   arch/arm/mach-tegra/clock.c             |  17 +++-
> > >>   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
> > >>   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
> > >>   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
> > >>   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
> > >>   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
> > >>   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
> > >>   drivers/timer/Kconfig                   |   8 ++
> > >>   drivers/timer/Makefile                  |   1 +
> > >>   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
> > >>   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
> > >>   include/configs/tegra-common.h          |   6 --
> > >>   15 files changed, 274 insertions(+), 79 deletions(-)
> > >>   create mode 100644 drivers/timer/tegra-timer.c
> > > Ugh... turns out I had completely messed up the testing on Tegra186
> > > and it wasn't working at all. The problem is that the selection of
> > > the TIMER symbol for all of Tegra causes the driver model to be
> > > used, but there is no DM driver for the architected timer that's used on Tegra186.
> > >
> > > The quickest fix would be to do this:
> > >
> > > --- >8 ---
> > > diff --git a/arch/arm/mach-tegra/Kconfig
> > > b/arch/arm/mach-tegra/Kconfig index b50eec5b8c9b..05c8ce0e08dd
> > > 100644
> > > --- a/arch/arm/mach-tegra/Kconfig
> > > +++ b/arch/arm/mach-tegra/Kconfig
> > > @@ -56,7 +56,6 @@ config TEGRA_COMMON
> > >       select MISC
> > >       select OF_CONTROL
> > >       select SPI
> > > -     select TIMER
> > >       imply CMD_DM
> > >       imply CRC32_VERIFY
> > >
> > > @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
> > >       select TEGRA_PINCTRL
> > >       select TEGRA_PMC
> > >       select TEGRA_TIMER
> > > +     select TIMER
> > >
> > >   config TEGRA_ARMV8_COMMON
> > >       bool "Tegra 64-bit common options"
> > > @@ -137,6 +137,7 @@ config TEGRA210
> > >       select TEGRA_PMC
> > >       select TEGRA_PMC_SECURE
> > >       select TEGRA_TIMER
> > > +     select TIMER
> > >
> > >   config TEGRA186
> > >       bool "Tegra186 family"
> > > --- >8 ---
> > >
> > > So basically make TIMER selected on everything except Tegra186, so
> > > that on Tegra186 things are basically unmodified.
> >
> > I can propose to include 'select TIMER' directly into TEGRA_TIMER config option. This will eliminate need of including it into mach-tegra Kconfigs.
> >
> > BTW, may you check current patch set on T124 and T210 if those work properly. My T30 devices work fine and same as before after switch to clk_m as timer calibration clock.
> >
> > Best Regards, Svyatoslav R.
> >
> > > Thierry

RE: [PATCH v7 0/3] Timer support for ARM Tegra

[Tom Warren]

Sure. Thierry - have you tested v8 of these patches on all of your Tegra boards?

Tom

-----Original Message-----
From: Svyatoslav Ryhel <clamor95@gmail.com> 
Sent: Wednesday, February 1, 2023 1:59 AM
To: Tom Warren <TWarren@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>; Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Marek Vasut <marex@denx.de>; Maxim Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; u-boot@lists.denx.de
Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra

External email: Use caution opening links or attachments


Greetings! This should be it. May you add
Tested-by: Thierry Reding <treding@nvidia.com> # T30, T124, T210 into
drivers: timer: add driver for ARMv7 based Tegra devices and T210 once applying patches? Thanks

вт, 31 січ. 2023 р. о 22:27 Tom Warren <TWarren@nvidia.com> пише:
>
> OK, I'll wait for your v8 with the adjusted timer enabling.
>
> Does this series need to go in first before your recent 16-patch series "General Tegra improvements"? i.e. are there any dependencies?
>
> Tom
> -----Original Message-----
> From: Svyatoslav Ryhel <clamor95@gmail.com>
> Sent: Tuesday, January 31, 2023 8:26 AM
> To: Tom Warren <TWarren@nvidia.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>; Rayagonda Kokatanur 
> <rayagonda.kokatanur@broadcom.com>; Marek Vasut <marex@denx.de>; Maxim 
> Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko <digetx@gmail.com>; 
> Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli 
> <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; 
> Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; Eugen 
> Hristev <eugen.hristev@microchip.com>; Michael Walle 
> <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu 
> <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; 
> Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier 
> <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara 
> <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; 
> u-boot@lists.denx.de
> Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
>
> External email: Use caution opening links or attachments
>
>
> Yes, it works perfectly fine on the T20/T30/T124/T186 and T210, T114 board no one has on hand. Timer enabling has to be adjusted as Thierry suggested.
>
> вт, 31 січ. 2023 р. о 17:18 Tom Warren <TWarren@nvidia.com> пише:
> >
> > Has this been tested yet? I want to get it into the next PR, and I need a tested-by for V7 before I can do that.
> >
> > Thanks,
> >
> > Tom
> >
> > -----Original Message-----
> > From: Svyatoslav R. <clamor95@gmail.com>
> > Sent: Friday, January 27, 2023 1:28 PM
> > To: Thierry Reding <thierry.reding@gmail.com>
> > Cc: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>; Tom 
> > Warren <twarren@nvidia.com>; Marek Vasut <marex@denx.de>; Maxim 
> > Schwalm <maxim.schwalm@gmail.com>; Dmitry Osipenko 
> > <digetx@gmail.com>; Jonas Schwöbel <jonasschwoebel@yahoo.de>; Agneli 
> > <poczt@protonmail.ch>; Heinrich Schuchardt <xypron.glpk@gmx.de>; 
> > Michal Simek <michal.simek@amd.com>; Stefan Roese <sr@denx.de>; 
> > Eugen Hristev <eugen.hristev@microchip.com>; Michael Walle 
> > <michael@walle.cc>; Simon Glass <sjg@chromium.org>; Jim Liu 
> > <jim.t90615@gmail.com>; William Zhang <william.zhang@broadcom.com>; 
> > Rick Chen <rick@andestech.com>; Stefan Herbrechtsmeier 
> > <stefan.herbrechtsmeier@weidmueller.com>; Andre Przywara 
> > <andre.przywara@arm.com>; Jaehoon Chung <jh80.chung@samsung.com>; 
> > u-boot@lists.denx.de
> > Subject: Re: [PATCH v7 0/3] Timer support for ARM Tegra
> >
> > External email: Use caution opening links or attachments
> >
> >
> > On 1/27/23 19:15, Thierry Reding wrote:
> > > On Fri, Jan 27, 2023 at 09:13:09AM +0200, Svyatoslav Ryhel wrote:
> > >> - ARM: tegra: remap clock_osc_freq for all Tegra family Enum 
> > >> clock_osc_freq was designed to use only with T20.
> > >> This patch remaps it to use additional frequencies, added in
> > >> T30+ SoC while maintaining backwards compatibility with T20.
> > >>
> > >> - drivers: timer: add timer driver for ARMv7 based Tegra devices 
> > >> Add timer support for T20/T30/T114/T124 and T210 based devices.
> > >> Driver is based on DM, has device tree support and can be used on 
> > >> SPL and early boot stage.
> > >>
> > >> Arm64 Tegra (apart T210) according to comment in tegra-common.h 
> > >> use architected timer.
> > >>
> > >> - ARM: tegra: include timer as default option Enable TIMER as 
> > >> default option for all Tegra devices and enable TEGRA_TIMER for 
> > >> TEGRA_ARMV7_COMMON and TEGRA210.
> > >> Additionally enable SPL_TIMER if build as SPL part and drop 
> > >> deprecated configs from common header.
> > >>
> > >> P. S. I have no arm64 Tegra and according to comment in 
> > >> tegra-common.h Use the Tegra US timer on ARMv7, but the 
> > >> architected timer on ARMv8.
> > >>
> > >> ---
> > >> Changeog from V6
> > >>   - use clk_m as timer calibration clock (this should properly fix T210)
> > >>   - enable timer for T210
> > >>
> > >> Changed from v5:
> > >>   - added paz00 tester
> > >>
> > >> Changed from v4:
> > >>   - added comments
> > >>
> > >> Changed from v3:
> > >>   - removed BOOTSTAGE ifdefs
> > >>   - use early timer on boot stage unconditionally
> > >> ---
> > >> Svyatoslav Ryhel (3):
> > >>    ARM: tegra: remap clock_osc_freq for all Tegra family
> > >>    drivers: timer: add driver for ARMv7 based Tegra devices and T210
> > >>    ARM: tegra: include timer as default option
> > >>
> > >>   arch/arm/Kconfig                        |   1 +
> > >>   arch/arm/include/asm/arch-tegra/clock.h |   9 +-
> > >>   arch/arm/mach-tegra/Kconfig             |   3 +
> > >>   arch/arm/mach-tegra/clock.c             |  17 +++-
> > >>   arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
> > >>   arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
> > >>   arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
> > >>   arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
> > >>   arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
> > >>   arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
> > >>   drivers/timer/Kconfig                   |   8 ++
> > >>   drivers/timer/Makefile                  |   1 +
> > >>   drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
> > >>   drivers/usb/host/ehci-tegra.c           |  46 +++++++--
> > >>   include/configs/tegra-common.h          |   6 --
> > >>   15 files changed, 274 insertions(+), 79 deletions(-)
> > >>   create mode 100644 drivers/timer/tegra-timer.c
> > > Ugh... turns out I had completely messed up the testing on 
> > > Tegra186 and it wasn't working at all. The problem is that the 
> > > selection of the TIMER symbol for all of Tegra causes the driver 
> > > model to be used, but there is no DM driver for the architected timer that's used on Tegra186.
> > >
> > > The quickest fix would be to do this:
> > >
> > > --- >8 ---
> > > diff --git a/arch/arm/mach-tegra/Kconfig 
> > > b/arch/arm/mach-tegra/Kconfig index b50eec5b8c9b..05c8ce0e08dd
> > > 100644
> > > --- a/arch/arm/mach-tegra/Kconfig
> > > +++ b/arch/arm/mach-tegra/Kconfig
> > > @@ -56,7 +56,6 @@ config TEGRA_COMMON
> > >       select MISC
> > >       select OF_CONTROL
> > >       select SPI
> > > -     select TIMER
> > >       imply CMD_DM
> > >       imply CRC32_VERIFY
> > >
> > > @@ -83,6 +82,7 @@ config TEGRA_ARMV7_COMMON
> > >       select TEGRA_PINCTRL
> > >       select TEGRA_PMC
> > >       select TEGRA_TIMER
> > > +     select TIMER
> > >
> > >   config TEGRA_ARMV8_COMMON
> > >       bool "Tegra 64-bit common options"
> > > @@ -137,6 +137,7 @@ config TEGRA210
> > >       select TEGRA_PMC
> > >       select TEGRA_PMC_SECURE
> > >       select TEGRA_TIMER
> > > +     select TIMER
> > >
> > >   config TEGRA186
> > >       bool "Tegra186 family"
> > > --- >8 ---
> > >
> > > So basically make TIMER selected on everything except Tegra186, so 
> > > that on Tegra186 things are basically unmodified.
> >
> > I can propose to include 'select TIMER' directly into TEGRA_TIMER config option. This will eliminate need of including it into mach-tegra Kconfigs.
> >
> > BTW, may you check current patch set on T124 and T210 if those work properly. My T30 devices work fine and same as before after switch to clk_m as timer calibration clock.
> >
> > Best Regards, Svyatoslav R.
> >
> > > Thierry