Add support for keystone2 SoC and K2HK EVM

From: Vitaly Andrianov <[email protected]>

This patch add basic support for the architecture timer found on recent ARMv7 based SoCs.

Signed-off-by Vitaly Andrianov <[email protected]>

Signed-off-by Murali Karicheri <[email protected]>

Acked-by Tom Rini <[email protected]>

---
 arch/arm/lib/Makefile     |    1 +
 arch/arm/lib/arch_timer.c |   58 +++++++++++++++++++++++++++++++++++++++++++++

-----Original Message-----
From: u-boot-bounces at lists.denx.de [mailto:u-boot- bounces at lists.denx.de] On Behalf Of Masahiro Yamada
Sent: Wednesday, April 02, 2014 9:46 PM
To: Karicheri, Muralidharan
Cc: Rini, Tom; u-boot at lists.denx.de
Subject: Re: [U-Boot] [PATCH v5 3/9] arm: add support for arch timer

Hi Murali,

Quoted 6 lines · On Tue, 1 Apr 2014 14:44:23 -0400 Murali Karicheri <[email protected]> wrote:

From: Vitaly Andrianov <[email protected]>

This patch add basic support for the architecture timer found on recent
ARMv7 based SoCs.

Quoted 6 lines

Signed-off-by Vitaly Andrianov <[email protected]>

Signed-off-by Murali Karicheri <[email protected]>

Acked-by Tom Rini <[email protected]>

---
 arch/arm/lib/Makefile     |    1 +
 arch/arm/lib/arch_timer.c |   58

+++++++++++++++++++++++++++++++++++++++++++++

I am not familiar with this timer, but your commit description implies it is specific to ARMv7.

If so, it looks like it should go to arch/arm/cpu/armv7/ . Is this right?

Best Regards
Masahiro Yamada

_______________________________________________
U-Boot mailing list
U-Boot at lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot

-----Original Messages-----
From: "Andrianov, Vitaly" <[email protected]>
Sent Time: 2014-04-03 19:22:34 (Thursday)
To: "Masahiro Yamada" <[email protected]>, "Karicheri, Muralidharan" <[email protected]>
Cc: "Rini, Tom" <[email protected]>, "u-boot at lists.denx.de" <[email protected]>
Subject: Re: [U-Boot] [PATCH v5 3/9] arm: add support for arch timer

Hi Masahiro,

Quoted 32 lines

-----Original Message-----
From: u-boot-bounces at lists.denx.de [mailto:u-boot- bounces at lists.denx.de] On Behalf Of Masahiro Yamada
Sent: Wednesday, April 02, 2014 9:46 PM
To: Karicheri, Muralidharan
Cc: Rini, Tom; u-boot at lists.denx.de
Subject: Re: [U-Boot] [PATCH v5 3/9] arm: add support for arch timer

Hi Murali,

Quoted 6 lines · On Tue, 1 Apr 2014 14:44:23 -0400 Murali Karicheri <[email protected]> wrote:

From: Vitaly Andrianov <[email protected]>

This patch add basic support for the architecture timer found on recent
ARMv7 based SoCs.

Quoted 6 lines

Signed-off-by Vitaly Andrianov <[email protected]>

Signed-off-by Murali Karicheri <[email protected]>

Acked-by Tom Rini <[email protected]>

---
 arch/arm/lib/Makefile     |    1 +
 arch/arm/lib/arch_timer.c |   58

+++++++++++++++++++++++++++++++++++++++++++++

I am not familiar with this timer, but your commit description implies it is specific to ARMv7.

Quoted 2 lines

If so, it looks like it should go to arch/arm/cpu/armv7/ . Is this right?

This is for arch timer implemented in ARM Cortex-A15 which is ARMv7. I believe the same arch timer is in ARMv8. So, it is not specific to ARMv7 only. The commit description mentioned only ARMv7 because the driver was designed and tested on ARMv7.

Quoted 43 lines

-----Original Messages-----
From: "Andrianov, Vitaly" <[email protected]>
Sent Time: 2014-04-03 19:22:34 (Thursday)
To: "Masahiro Yamada" <[email protected]>, "Karicheri, Muralidharan" <[email protected]>
Cc: "Rini, Tom" <[email protected]>, "u-boot at lists.denx.de" <[email protected]>
Subject: Re: [U-Boot] [PATCH v5 3/9] arm: add support for arch timer

Hi Masahiro,

Quoted 32 lines

-----Original Message-----
From: u-boot-bounces at lists.denx.de [mailto:u-boot- bounces at lists.denx.de] On Behalf Of Masahiro Yamada
Sent: Wednesday, April 02, 2014 9:46 PM
To: Karicheri, Muralidharan
Cc: Rini, Tom; u-boot at lists.denx.de
Subject: Re: [U-Boot] [PATCH v5 3/9] arm: add support for arch timer

Hi Murali,

Quoted 6 lines · On Tue, 1 Apr 2014 14:44:23 -0400 Murali Karicheri <[email protected]> wrote:

From: Vitaly Andrianov <[email protected]>

This patch add basic support for the architecture timer found on recent
ARMv7 based SoCs.

Quoted 6 lines

Signed-off-by Vitaly Andrianov <[email protected]>

Signed-off-by Murali Karicheri <[email protected]>

Acked-by Tom Rini <[email protected]>

---
  arch/arm/lib/Makefile     |    1 +
  arch/arm/lib/arch_timer.c |   58

+++++++++++++++++++++++++++++++++++++++++++++

I am not familiar with this timer, but your commit description implies it is specific to ARMv7.

Quoted 7 lines

Quoted 2 lines

If so, it looks like it should go to arch/arm/cpu/armv7/ . Is this right?

This is for arch timer implemented in ARM Cortex-A15 which is ARMv7. I believe the same arch timer is in ARMv8. So, it is not specific to ARMv7 only. The commit description mentioned only ARMv7 because the driver was designed and tested on ARMv7.

If we want to apply the arch_timer.c to armv8, the get_ticks() function should be modified due to mrrc instuction.
Furthermore, armv8 now make use of timer infrastructure of lib/time.c.
Only get_tbclk() and timer_read_counter() are architecture specific and declared in generic_timer.c. We'd better construct a common arch timer structure across arm platform.

Best regards,
David

From: Vitaly Andrianov<[email protected]>

- add davinci driver to new multibus/multiadpater support
- adapted all config files, which uses this driver

Signed-off-by Vitaly Andrianov<[email protected]>

Signed-off-by Murali Karicheri<[email protected]>

---
  arch/arm/cpu/arm926ejs/davinci/dm355.c  |    2 +-
  arch/arm/cpu/arm926ejs/davinci/dm365.c  |    2 +-
  arch/arm/cpu/arm926ejs/davinci/dm644x.c |    2 +-
  arch/arm/cpu/arm926ejs/davinci/dm646x.c |    2 +-
  drivers/i2c/Makefile                    |    2 +-
  drivers/i2c/davinci_i2c.c               |  401 ++++++++++++++++++-------------
  drivers/i2c/davinci_i2c.h               |   27 ++-
  include/configs/cam_enc_4xx.h           |    8 +-
  include/configs/da830evm.h              |    8 +-
  include/configs/da850evm.h              |    8 +-
  include/configs/davinci_dm355evm.h      |    8 +-
  include/configs/davinci_dm355leopard.h  |    8 +-
  include/configs/davinci_dm365evm.h      |    8 +-

  include/configs/davinci_dm6467evm.h     |    8 +-
  include/configs/davinci_dvevm.h         |    8 +-
  include/configs/davinci_schmoogie.h     |    8 +-
  include/configs/davinci_sffsdr.h        |    8 +-
  include/configs/davinci_sonata.h        |    8 +-
  include/configs/ea20.h                  |    7 +-
  include/configs/enbw_cmc.h              |    8 +-
  20 files changed, 306 insertions(+), 235 deletions(-)

From: Vitaly Andrianov<[email protected]>

k2hk EVM is based on Texas Instruments Keystone2 Hawking/Kepler SoC. Keystone2 SoC has ARM v7 Cortex-A15 MPCore processor. Please refer the ti/k2hk_evm/README for details on the board, build and other information.

This patch add support for keystone architecture and k2hk evm.

Signed-off-by Vitaly Andrianov<[email protected]>

Signed-off-by Murali Karicheri<[email protected]>

Signed-off-by WingMan Kwok<[email protected]>

Signed-off-by Sandeep Nair<[email protected]>

---
  Makefile                                           |   10 +
  arch/arm/cpu/armv7/keystone/Makefile               |   17 ++
  arch/arm/cpu/armv7/keystone/aemif.c                |   71 +++++
  arch/arm/cpu/armv7/keystone/clock.c                |  318 ++++++++++++++++++++
  arch/arm/cpu/armv7/keystone/cmd_clock.c            |  124 ++++++++
  arch/arm/cpu/armv7/keystone/cmd_mon.c              |  131 ++++++++
  arch/arm/cpu/armv7/keystone/ddr3.c                 |   69 +++++
  arch/arm/cpu/armv7/keystone/init.c                 |   56 ++++
  arch/arm/cpu/armv7/keystone/msmc.c                 |   68 +++++
  arch/arm/cpu/armv7/keystone/psc.c                  |  238 +++++++++++++++
  arch/arm/cpu/armv7/keystone/spl.c                  |   45 +++
  arch/arm/include/asm/arch-keystone/clock-k2hk.h    |  109 +++++++
  arch/arm/include/asm/arch-keystone/clock.h         |   17 ++
  arch/arm/include/asm/arch-keystone/clock_defs.h    |  111 +++++++
  arch/arm/include/asm/arch-keystone/emif_defs.h     |   73 +++++
  arch/arm/include/asm/arch-keystone/hardware-k2hk.h |  150 +++++++++
  arch/arm/include/asm/arch-keystone/hardware.h      |  175 +++++++++++
  arch/arm/include/asm/arch-keystone/i2c_defs.h      |   17 ++
  arch/arm/include/asm/arch-keystone/nand_defs.h     |   23 ++
  arch/arm/include/asm/arch-keystone/psc_defs.h      |   90 ++++++
  arch/arm/include/asm/arch-keystone/spl.h           |   12 +
  board/ti/k2hk_evm/Makefile                         |    9 +
  board/ti/k2hk_evm/README                           |  122 ++++++++
  board/ti/k2hk_evm/board.c                          |  236 +++++++++++++++
  board/ti/k2hk_evm/ddr3.c                           |  269 +++++++++++++++++
  boards.cfg                                         |    1 +
  drivers/serial/ns16550.c                           |    8 +
  include/configs/k2hk_evm.h                         |  212 +++++++++++++
  28 files changed, 2781 insertions(+)

create mode 100644 arch/arm/cpu/armv7/keystone/Makefile create mode 100644 arch/arm/cpu/armv7/keystone/aemif.c create mode 100644 arch/arm/cpu/armv7/keystone/clock.c create mode 100644 arch/arm/cpu/armv7/keystone/cmd_clock.c create mode 100644 arch/arm/cpu/armv7/keystone/cmd_mon.c create mode 100644 arch/arm/cpu/armv7/keystone/ddr3.c create mode 100644 arch/arm/cpu/armv7/keystone/init.c create mode 100644 arch/arm/cpu/armv7/keystone/msmc.c create mode 100644 arch/arm/cpu/armv7/keystone/psc.c create mode 100644 arch/arm/cpu/armv7/keystone/spl.c create mode 100644 arch/arm/include/asm/arch-keystone/clock-k2hk.h create mode 100644 arch/arm/include/asm/arch-keystone/clock.h create mode 100644 arch/arm/include/asm/arch-keystone/clock_defs.h create mode 100644 arch/arm/include/asm/arch-keystone/emif_defs.h create mode 100644 arch/arm/include/asm/arch-keystone/hardware-k2hk.h create mode 100644 arch/arm/include/asm/arch-keystone/hardware.h create mode 100644 arch/arm/include/asm/arch-keystone/i2c_defs.h create mode 100644 arch/arm/include/asm/arch-keystone/nand_defs.h create mode 100644 arch/arm/include/asm/arch-keystone/psc_defs.h create mode 100644 arch/arm/include/asm/arch-keystone/spl.h create mode 100644 board/ti/k2hk_evm/Makefile
create mode 100644 board/ti/k2hk_evm/README
create mode 100644 board/ti/k2hk_evm/board.c
create mode 100644 board/ti/k2hk_evm/ddr3.c
create mode 100644 include/configs/k2hk_evm.h

Makefile +10 -0

index 25cbc95..27b85ed 100644
@@ -868,6 +868,16 @@ OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
  u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
  	$(call if_changed,pad_cat)
 
+MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \
+	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL
+spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE
+	$(call if_changed,mkimage)
+
+OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
+			  --gap-fill=0
+u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE
+	$(call if_changed,pad_cat)
+
  ifneq ($(CONFIG_TEGRA),)
  OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
  u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE

arch/arm/cpu/armv7/keystone/Makefile new file +17 -0

new file mode 100644
index 0000000..7924cfa
@@ -0,0 +1,17 @@
+#
+# (C) Copyright 2012-2014
+#     Texas Instruments Incorporated, <www.ti.com>
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y	+= aemif.o
+obj-y	+= init.o
+obj-y	+= psc.o
+obj-y	+= clock.o
+obj-y	+= cmd_clock.o
+obj-y	+= cmd_mon.o
+obj-y	+= msmc.o
+obj-$(CONFIG_SPL_BUILD)	+= spl.o
+obj-y	+= ddr3.o
+

arch/arm/cpu/armv7/keystone/aemif.c new file +71 -0

new file mode 100644
index 0000000..9b26886
@@ -0,0 +1,71 @@
+/*
+ * Keystone2: Asynchronous EMIF Configuration
+ *
+ * (C) Copyright 2012-2014
+ *     Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/emif_defs.h>
+
+#define AEMIF_CFG_SELECT_STROBE(v)	((v) ? 1 << 31 : 0)
+#define AEMIF_CFG_EXTEND_WAIT(v)	((v) ? 1 << 30 : 0)
+#define AEMIF_CFG_WR_SETUP(v)		(((v) & 0x0f) << 26)
+#define AEMIF_CFG_WR_STROBE(v)		(((v) & 0x3f) << 20)
+#define AEMIF_CFG_WR_HOLD(v)		(((v) & 0x07) << 17)
+#define AEMIF_CFG_RD_SETUP(v)		(((v) & 0x0f) << 13)
+#define AEMIF_CFG_RD_STROBE(v)		(((v) & 0x3f) << 7)
+#define AEMIF_CFG_RD_HOLD(v)		(((v) & 0x07) << 4)
+#define AEMIF_CFG_TURN_AROUND(v)	(((v) & 0x03) << 2)
+#define AEMIF_CFG_WIDTH(v)		(((v) & 0x03) << 0)
+
+#define set_config_field(reg, field, val)			\
+	do {							\
+		if (val != -1) {				\
+			reg &= ~AEMIF_CFG_##field(0xffffffff);	\
+			reg |=	AEMIF_CFG_##field(val);		\
+		}						\
+	} while (0)
+
+void configure_async_emif(int cs, struct async_emif_config *cfg)
+{
+	unsigned long tmp;
+
+	if (cfg->mode == ASYNC_EMIF_MODE_NAND) {
+		tmp = __raw_readl(&davinci_emif_regs->nandfcr);
+		tmp |= (1 << cs);
+		__raw_writel(tmp, &davinci_emif_regs->nandfcr);
+
+	} else if (cfg->mode == ASYNC_EMIF_MODE_ONENAND) {
+		tmp = __raw_readl(&davinci_emif_regs->one_nand_cr);
+		tmp |= (1 << cs);
+		__raw_writel(tmp, &davinci_emif_regs->one_nand_cr);
+	}
+
+	tmp = __raw_readl(&davinci_emif_regs->abncr[cs]);
+
+	set_config_field(tmp, SELECT_STROBE,	cfg->select_strobe);
+	set_config_field(tmp, EXTEND_WAIT,	cfg->extend_wait);
+	set_config_field(tmp, WR_SETUP,		cfg->wr_setup);
+	set_config_field(tmp, WR_STROBE,	cfg->wr_strobe);
+	set_config_field(tmp, WR_HOLD,		cfg->wr_hold);
+	set_config_field(tmp, RD_SETUP,		cfg->rd_setup);
+	set_config_field(tmp, RD_STROBE,	cfg->rd_strobe);
+	set_config_field(tmp, RD_HOLD,		cfg->rd_hold);
+	set_config_field(tmp, TURN_AROUND,	cfg->turn_around);
+	set_config_field(tmp, WIDTH,		cfg->width);
+
+	__raw_writel(tmp, &davinci_emif_regs->abncr[cs]);
+}
+
+void init_async_emif(int num_cs, struct async_emif_config *config)
+{
+	int cs;
+
+	for (cs = 0; cs < num_cs; cs++)
+		configure_async_emif(cs, config + cs);
+}

arch/arm/cpu/armv7/keystone/clock.c new file +156 -0

new file mode 100644
index 0000000..bfa4c9d
@@ -0,0 +1,318 @@
+/*
+ * Keystone2: pll initialization
+ *
+ * (C) Copyright 2012-2014
+ *     Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm-generic/errno.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/clock_defs.h>
+
+static void wait_for_completion(const struct pll_init_data *data)
+{
+	int i;
+	for (i = 0; i < 100; i++) {
+		sdelay(450);
+		if ((pllctl_reg_read(data->pll, stat) & PLLSTAT_GO) == 0)
+			break;
+	}
+}
+
+struct pll_regs {
+	u32	reg0, reg1;
+};
+
+static const struct pll_regs pll_regs[] = {
+	[CORE_PLL]	= { K2HK_MAINPLLCTL0, K2HK_MAINPLLCTL1},
+	[PASS_PLL]	= { K2HK_PASSPLLCTL0, K2HK_PASSPLLCTL1},
+	[TETRIS_PLL]	= { K2HK_ARMPLLCTL0,  K2HK_ARMPLLCTL1},
+	[DDR3A_PLL]	= { K2HK_DDR3APLLCTL0, K2HK_DDR3APLLCTL1},
+	[DDR3B_PLL]	= { K2HK_DDR3BPLLCTL0, K2HK_DDR3BPLLCTL1},
+};
+
+/* Fout = Fref * NF(mult) / NR(prediv) / OD */
+static unsigned long pll_freq_get(int pll)
+{
+	unsigned long mult = 1, prediv = 1, output_div = 2;
+	unsigned long ret;
+	u32 tmp, reg;
+
+	if (pll == CORE_PLL) {
+		ret = external_clk[sys_clk];
+		if (pllctl_reg_read(pll, ctl) & PLLCTL_PLLEN) {
+			/* PLL mode */
+			tmp = __raw_readl(K2HK_MAINPLLCTL0);
+			prediv = (tmp & PLL_DIV_MASK) + 1;
+			mult = (((tmp & PLLM_MULT_HI_SMASK) >> 6) |
+				(pllctl_reg_read(pll, mult) &
+				 PLLM_MULT_LO_MASK)) + 1;
+			output_div = ((pllctl_reg_read(pll, secctl) >>
+				       PLL_CLKOD_SHIFT) & PLL_CLKOD_MASK) + 1;
+
+			ret = ret / prediv / output_div * mult;
+		}
+	} else {
+		switch (pll) {
+		case PASS_PLL:
+			ret = external_clk[pa_clk];
+			reg = K2HK_PASSPLLCTL0;
+			break;
+		case TETRIS_PLL:
+			ret = external_clk[tetris_clk];
+			reg = K2HK_ARMPLLCTL0;
+			break;
+		case DDR3A_PLL:
+			ret = external_clk[ddr3a_clk];
+			reg = K2HK_DDR3APLLCTL0;
+			break;
+		case DDR3B_PLL:
+			ret = external_clk[ddr3b_clk];
+			reg = K2HK_DDR3BPLLCTL0;
+			break;
+		default:
+			return 0;
+		}
+
+		tmp = __raw_readl(reg);
+
+		if (!(tmp & PLLCTL_BYPASS)) {
+			/* Bypass disabled */
+			prediv = (tmp & PLL_DIV_MASK) + 1;
+			mult = ((tmp >> PLL_MULT_SHIFT) & PLL_MULT_MASK) + 1;
+			output_div = ((tmp >> PLL_CLKOD_SHIFT) &
+				      PLL_CLKOD_MASK) + 1;
+			ret = ((ret / prediv) * mult) / output_div;
+		}
+	}
+
+	return ret;
+}
+
+unsigned long clk_get_rate(unsigned int clk)
+{
+	switch (clk) {
+	case core_pll_clk:	return pll_freq_get(CORE_PLL);
+	case pass_pll_clk:	return pll_freq_get(PASS_PLL);
+	case tetris_pll_clk:	return pll_freq_get(TETRIS_PLL);
+	case ddr3a_pll_clk:	return pll_freq_get(DDR3A_PLL);
+	case ddr3b_pll_clk:	return pll_freq_get(DDR3B_PLL);
+	case sys_clk0_1_clk:
+	case sys_clk0_clk:	return pll_freq_get(CORE_PLL) / pll0div_read(1);
+	case sys_clk1_clk:	return pll_freq_get(CORE_PLL) / pll0div_read(2);
+	case sys_clk2_clk:	return pll_freq_get(CORE_PLL) / pll0div_read(3);
+	case sys_clk3_clk:	return pll_freq_get(CORE_PLL) / pll0div_read(4);
+	case sys_clk0_2_clk:	return clk_get_rate(sys_clk0_clk) / 2;
+	case sys_clk0_3_clk:	return clk_get_rate(sys_clk0_clk) / 3;
+	case sys_clk0_4_clk:	return clk_get_rate(sys_clk0_clk) / 4;
+	case sys_clk0_6_clk:	return clk_get_rate(sys_clk0_clk) / 6;
+	case sys_clk0_8_clk:	return clk_get_rate(sys_clk0_clk) / 8;
+	case sys_clk0_12_clk:	return clk_get_rate(sys_clk0_clk) / 12;
+	case sys_clk0_24_clk:	return clk_get_rate(sys_clk0_clk) / 24;
+	case sys_clk1_3_clk:	return clk_get_rate(sys_clk1_clk) / 3;
+	case sys_clk1_4_clk:	return clk_get_rate(sys_clk1_clk) / 4;
+	case sys_clk1_6_clk:	return clk_get_rate(sys_clk1_clk) / 6;
+	case sys_clk1_12_clk:	return clk_get_rate(sys_clk1_clk) / 12;
+	default:
+		break;
+	}
+	return 0;
+}
+
+void init_pll(const struct pll_init_data *data)
+{
+	u32 tmp, tmp_ctl, pllm, plld, pllod, bwadj;
+
+	pllm = data->pll_m - 1;
+	plld = (data->pll_d - 1) & PLL_DIV_MASK;
+	pllod = (data->pll_od - 1) & PLL_CLKOD_MASK;
+
+	if (data->pll == MAIN_PLL) {
+		/* The requered delay before main PLL configuration */
+		sdelay(210000);
+
+		tmp = pllctl_reg_read(data->pll, secctl);
+
+		if (tmp & (PLLCTL_BYPASS)) {
+			setbits_le32(pll_regs[data->pll].reg1,
+				     BIT(MAIN_ENSAT_OFFSET));
+
+			pllctl_reg_clrbits(data->pll, ctl, PLLCTL_PLLEN |
+					   PLLCTL_PLLENSRC);
+			sdelay(340);
+
+			pllctl_reg_setbits(data->pll, secctl, PLLCTL_BYPASS);
+			pllctl_reg_setbits(data->pll, ctl, PLLCTL_PLLPWRDN);
+			sdelay(21000);
+
+			pllctl_reg_clrbits(data->pll, ctl, PLLCTL_PLLPWRDN);
+		} else {
+			pllctl_reg_clrbits(data->pll, ctl, PLLCTL_PLLEN |
+					   PLLCTL_PLLENSRC);

arch/arm/cpu/armv7/keystone/clock.c new file +152 -0

+		clrsetbits_le32(pll_regs[data->pll].reg0, PLL_BWADJ_LO_SMASK,
+				(tmp_ctl << PLL_BWADJ_LO_SHIFT));
+		clrsetbits_le32(pll_regs[data->pll].reg1, PLL_BWADJ_HI_MASK,
+				(tmp_ctl >> 8));
+
+		/*
+		 * Set the pll divider (6 bit field) *
+		 * PLLD[5:0] is located in MAINPLLCTL0
+		 */
+		clrsetbits_le32(pll_regs[data->pll].reg0, PLL_DIV_MASK, plld);
+
+		/* Set the OUTPUT DIVIDE (4 bit field) in SECCTL */
+		pllctl_reg_rmw(data->pll, secctl, PLL_CLKOD_SMASK,
+			       (pllod << PLL_CLKOD_SHIFT));
+		wait_for_completion(data);
+
+		pllctl_reg_write(data->pll, div1, PLLM_RATIO_DIV1);
+		pllctl_reg_write(data->pll, div2, PLLM_RATIO_DIV2);
+		pllctl_reg_write(data->pll, div3, PLLM_RATIO_DIV3);
+		pllctl_reg_write(data->pll, div4, PLLM_RATIO_DIV4);
+		pllctl_reg_write(data->pll, div5, PLLM_RATIO_DIV5);
+
+		pllctl_reg_setbits(data->pll, alnctl, 0x1f);
+
+		/*
+		 * Set GOSET bit in PLLCMD to initiate the GO operation
+		 * to change the divide
+		 */
+		pllctl_reg_setbits(data->pll, cmd, PLLSTAT_GO);
+		sdelay(1500); /* wait for the phase adj */
+		wait_for_completion(data);
+
+		/* Reset PLL */
+		pllctl_reg_setbits(data->pll, ctl, PLLCTL_PLLRST);
+		sdelay(21000);	/* Wait for a minimum of 7 us*/
+		pllctl_reg_clrbits(data->pll, ctl, PLLCTL_PLLRST);
+		sdelay(105000);	/* Wait for PLL Lock time (min 50 us) */
+
+		pllctl_reg_clrbits(data->pll, secctl, PLLCTL_BYPASS);
+
+		tmp = pllctl_reg_setbits(data->pll, ctl, PLLCTL_PLLEN);
+
+	} else if (data->pll == TETRIS_PLL) {
+		bwadj = pllm >> 1;
+		/* 1.5 Set PLLCTL0[BYPASS] =1 (enable bypass), */
+		setbits_le32(pll_regs[data->pll].reg0,  PLLCTL_BYPASS);
+		/*
+		 * Set CHIPMISCCTL1[13] = 0 (enable glitchfree bypass)
+		 * only applicable for Kepler
+		 */
+		clrbits_le32(K2HK_MISC_CTRL, ARM_PLL_EN);
+		/* 2 In PLLCTL1, write PLLRST = 1 (PLL is reset) */
+		setbits_le32(pll_regs[data->pll].reg1 ,
+			     PLL_PLLRST | PLLCTL_ENSAT);
+
+		/*
+		 * 3 Program PLLM and PLLD in PLLCTL0 register
+		 * 4 Program BWADJ[7:0] in PLLCTL0 and BWADJ[11:8] in
+		 * PLLCTL1 register. BWADJ value must be set
+		 * to ((PLLM + 1) >> 1) ? 1)
+		 */
+		tmp = ((bwadj & PLL_BWADJ_LO_MASK) << PLL_BWADJ_LO_SHIFT) |
+			(pllm << 6) |
+			(plld & PLL_DIV_MASK) |
+			(pllod << PLL_CLKOD_SHIFT) | PLLCTL_BYPASS;
+		__raw_writel(tmp, pll_regs[data->pll].reg0);
+
+		/* Set BWADJ[11:8] bits */
+		tmp = __raw_readl(pll_regs[data->pll].reg1);
+		tmp &= ~(PLL_BWADJ_HI_MASK);
+		tmp |= ((bwadj>>8) & PLL_BWADJ_HI_MASK);
+		__raw_writel(tmp, pll_regs[data->pll].reg1);
+		/*
+		 * 5 Wait for at least 5 us based on the reference
+		 * clock (PLL reset time)
+		 */
+		sdelay(21000);	/* Wait for a minimum of 7 us*/
+
+		/* 6 In PLLCTL1, write PLLRST = 0 (PLL reset is released) */
+		clrbits_le32(pll_regs[data->pll].reg1, PLL_PLLRST);
+		/*
+		 * 7 Wait for at least 500 * REFCLK cycles * (PLLD + 1)
+		 * (PLL lock time)
+		 */
+		sdelay(105000);
+		/* 8 disable bypass */
+		clrbits_le32(pll_regs[data->pll].reg0, PLLCTL_BYPASS);
+		/*
+		 * 9 Set CHIPMISCCTL1[13] = 1 (disable glitchfree bypass)
+		 * only applicable for Kepler
+		 */
+		setbits_le32(K2HK_MISC_CTRL, ARM_PLL_EN);
+	} else {
+		setbits_le32(pll_regs[data->pll].reg1, PLLCTL_ENSAT);
+		/*
+		 * process keeps state of Bypass bit while programming
+		 * all other DDR PLL settings
+		 */
+		tmp = __raw_readl(pll_regs[data->pll].reg0);
+		tmp &= PLLCTL_BYPASS;	/* clear everything except Bypass */
+
+		/*
+		 * Set the BWADJ[7:0], PLLD[5:0] and PLLM to PLLCTL0,
+		 * bypass disabled
+		 */
+		bwadj = pllm >> 1;
+		tmp |= ((bwadj & PLL_BWADJ_LO_SHIFT) << PLL_BWADJ_LO_SHIFT) |
+			(pllm << PLL_MULT_SHIFT) |
+			(plld & PLL_DIV_MASK) |
+			(pllod << PLL_CLKOD_SHIFT);
+		__raw_writel(tmp, pll_regs[data->pll].reg0);
+
+		/* Set BWADJ[11:8] bits */
+		tmp = __raw_readl(pll_regs[data->pll].reg1);
+		tmp &= ~(PLL_BWADJ_HI_MASK);
+		tmp |= ((bwadj >> 8) & PLL_BWADJ_HI_MASK);
+
+		/* set PLL Select (bit 13) for PASS PLL */
+		if (data->pll == PASS_PLL)
+			tmp |= PLLCTL_PAPLL;
+
+		__raw_writel(tmp, pll_regs[data->pll].reg1);
+
+		/* Reset bit: bit 14 for both DDR3 & PASS PLL */
+		tmp = PLL_PLLRST;
+		/* Set RESET bit = 1 */
+		setbits_le32(pll_regs[data->pll].reg1, tmp);
+		/* Wait for a minimum of 7 us*/
+		sdelay(21000);
+		/* Clear RESET bit */
+		clrbits_le32(pll_regs[data->pll].reg1, tmp);
+		sdelay(105000);
+
+		/* clear BYPASS (Enable PLL Mode) */
+		clrbits_le32(pll_regs[data->pll].reg0, PLLCTL_BYPASS);
+		sdelay(21000);	/* Wait for a minimum of 7 us*/
+	}
+
+	/*
+	 * This is required to provide a delay between multiple
+	 * consequent PPL configurations
+	 */
+	sdelay(210000);
+}
+
+void init_plls(int num_pll, struct pll_init_data *config)
+{
+	int i;
+
+	for (i = 0; i < num_pll; i++)
+		init_pll(&config[i]);
+}

arch/arm/cpu/armv7/keystone/cmd_clock.c new file +124 -0

new file mode 100644
index 0000000..afd30f3
@@ -0,0 +1,124 @@
+/*
+ * keystone2: commands for clocks
+ *
+ * (C) Copyright 2012-2014
+ *     Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/psc_defs.h>
+
+struct pll_init_data cmd_pll_data = {
+	.pll			= MAIN_PLL,
+	.pll_m			= 16,
+	.pll_d			= 1,
+	.pll_od			= 2,
+};
+
+int do_pll_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	if (argc != 5)
+		goto pll_cmd_usage;
+
+	if (strncmp(argv[1], "pa", 2) == 0)
+		cmd_pll_data.pll = PASS_PLL;
+	else if (strncmp(argv[1], "arm", 3) == 0)
+		cmd_pll_data.pll = TETRIS_PLL;
+	else if (strncmp(argv[1], "ddr3a", 5) == 0)
+		cmd_pll_data.pll = DDR3A_PLL;
+	else if (strncmp(argv[1], "ddr3b", 5) == 0)
+		cmd_pll_data.pll = DDR3B_PLL;
+	else
+		goto pll_cmd_usage;
+
+	cmd_pll_data.pll_m   = simple_strtoul(argv[2], NULL, 10);
+	cmd_pll_data.pll_d   = simple_strtoul(argv[3], NULL, 10);
+	cmd_pll_data.pll_od  = simple_strtoul(argv[4], NULL, 10);
+
+	printf("Trying to set pll %d; mult %d; div %d; OD %d\n",
+	       cmd_pll_data.pll, cmd_pll_data.pll_m,
+	       cmd_pll_data.pll_d, cmd_pll_data.pll_od);
+	init_pll(&cmd_pll_data);
+
+	return 0;
+
+pll_cmd_usage:
+	return cmd_usage(cmdtp);
+}
+
+U_BOOT_CMD(
+	pllset,	5,	0,	do_pll_cmd,
+	"set pll multiplier and pre divider",
+	"<pa|arm|ddr3a|ddr3b> <mult> <div> <OD>\n"
+);
+
+int do_getclk_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	unsigned int clk;
+	unsigned int freq;
+
+	if (argc != 2)
+		goto getclk_cmd_usage;
+
+	clk = simple_strtoul(argv[1], NULL, 10);
+
+	freq = clk_get_rate(clk);
+	printf("clock index [%d] - frequency %u\n", clk, freq);
+	return 0;
+
+getclk_cmd_usage:
+	return cmd_usage(cmdtp);
+}
+
+U_BOOT_CMD(
+	getclk,	2,	0,	do_getclk_cmd,
+	"get clock rate",
+	"<clk index>\n"
+	"See the 'enum clk_e' in the k2hk clock.h for clk indexes\n"
+);
+
+int do_psc_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int	psc_module;
+	int	res;
+
+	if (argc != 3)
+		goto psc_cmd_usage;
+
+	psc_module = simple_strtoul(argv[1], NULL, 10);
+	if (strcmp(argv[2], "en") == 0) {
+		res = psc_enable_module(psc_module);
+		printf("psc_enable_module(%d) - %s\n", psc_module,
+		       (res) ? "ERROR" : "OK");
+		return 0;
+	}
+
+	if (strcmp(argv[2], "di") == 0) {
+		res = psc_disable_module(psc_module);
+		printf("psc_disable_module(%d) - %s\n", psc_module,
+		       (res) ? "ERROR" : "OK");
+		return 0;
+	}
+
+	if (strcmp(argv[2], "domain") == 0) {
+		res = psc_disable_domain(psc_module);
+		printf("psc_disable_domain(%d) - %s\n", psc_module,
+		       (res) ? "ERROR" : "OK");
+		return 0;
+	}
+
+psc_cmd_usage:
+	return cmd_usage(cmdtp);
+}
+
+U_BOOT_CMD(
+	psc,	3,	0,	do_psc_cmd,
+	"<enable/disable psc module os disable domain>",
+	"<mod/domain index> <en|di|domain>\n"
+	"See the hardware.h for Power and Sleep Controller (PSC) Domains\n"
+);

arch/arm/cpu/armv7/keystone/cmd_mon.c new file +49 -0

new file mode 100644
index 0000000..f9f58a3
@@ -0,0 +1,131 @@
+/*
+ * K2HK: secure kernel command file
+ *
+ * (C) Copyright 2012-2014
+ *     Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+asm(".arch_extension sec\n\t");
+
+static int mon_install(u32 addr, u32 dpsc, u32 freq)
+{
+	int result;
+
+	__asm__ __volatile__ (
+		"stmfd r13!, {lr}\n"
+		"mov r0, %1\n"
+		"mov r1, %2\n"
+		"mov r2, %3\n"
+		"blx r0\n"
+		"ldmfd r13!, {lr}\n"
+		: "=&r" (result)
+		: "r" (addr), "r" (dpsc), "r" (freq)
+		: "cc", "r0", "r1", "r2", "memory");
+	return result;
+}
+
+static int do_mon_install(cmd_tbl_t *cmdtp, int flag, int argc,
+			  char * const argv[])
+{
+	u32 addr, dpsc_base = 0x1E80000, freq;
+	int     rcode = 0;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	freq = clk_get_rate(sys_clk0_6_clk);
+
+	addr = simple_strtoul(argv[1], NULL, 16);
+
+	rcode = mon_install(addr, dpsc_base, freq);
+	printf("## installed monitor, freq [%d], status %d\n",
+	       freq, rcode);
+
+	return 0;
+}

arch/arm/cpu/armv7/keystone/cmd_mon.c new file +32 -0

+}
+
+int mon_power_on(int core_id, void *ep)
+{
+	int result;
+
+	asm volatile (
+		"stmfd  r13!, {lr}\n"
+		"mov r1, %1\n"
+		"mov r2, %2\n"
+		"mov r0, #0\n"
+		"smc	#0\n"
+		"ldmfd  r13!, {lr}\n"
+		: "=&r" (result)
+		: "r" (core_id), "r" (ep)
+		: "cc", "r0", "r1", "r2", "memory");
+	return  result;
+}
+
+int mon_power_off(int core_id)
+{
+	int result;
+
+	asm volatile (
+		"stmfd  r13!, {lr}\n"
+		"mov r1, %1\n"
+		"mov r0, #1\n"
+		"smc	#1\n"
+		"ldmfd  r13!, {lr}\n"
+		: "=&r" (result)
+		: "r" (core_id)
+		: "cc", "r0", "r1", "memory");

arch/arm/cpu/armv7/keystone/cmd_mon.c new file +21 -0

+	else
+		rcode = mon_power_off(core_id);
+
+	if (on) {
+		if (!rcode)
+			printf("core %d powered on successfully\n", core_id);
+		else
+			printf("core %d power on failure\n", core_id);
+	} else {
+		printf("core %d powered off successfully\n", core_id);
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(mon_power, 3, 0, do_mon_power,
+	   "Power On/Off secondary core",
+	   "mon_power <coreid> <oper>\n"
+	   "- coreid (1-3) and oper (1 - ON, 0 - OFF)\n"
+	   ""
+);

arch/arm/cpu/armv7/keystone/ddr3.c new file +69 -0

new file mode 100644
index 0000000..4875db7
@@ -0,0 +1,69 @@
+/*
+ * Keystone2: DDR3 initialization
+ *
+ * (C) Copyright 2012-2014
+ *     Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <asm/arch/hardware.h>
+#include <asm/io.h>
+
+void init_ddrphy(u32 base, struct ddr3_phy_config *phy_cfg)
+{
+	unsigned int tmp;
+
+	while ((__raw_readl(base + KS2_DDRPHY_PGSR0_OFFSET)
+		 & 0x00000001) != 0x00000001)
+		;
+
+	__raw_writel(phy_cfg->pllcr, base + KS2_DDRPHY_PLLCR_OFFSET);
+
+	tmp = __raw_readl(base + KS2_DDRPHY_PGCR1_OFFSET);
+	tmp &= ~(phy_cfg->pgcr1_mask);
+	tmp |= phy_cfg->pgcr1_val;
+	__raw_writel(tmp, base + KS2_DDRPHY_PGCR1_OFFSET);
+
+	__raw_writel(phy_cfg->ptr0,   base + KS2_DDRPHY_PTR0_OFFSET);
+	__raw_writel(phy_cfg->ptr1,   base + KS2_DDRPHY_PTR1_OFFSET);
+	__raw_writel(phy_cfg->ptr3,  base + KS2_DDRPHY_PTR3_OFFSET);
+	__raw_writel(phy_cfg->ptr4,  base + KS2_DDRPHY_PTR4_OFFSET);
+
+	tmp =  __raw_readl(base + KS2_DDRPHY_DCR_OFFSET);
+	tmp &= ~(phy_cfg->dcr_mask);
+	tmp |= phy_cfg->dcr_val;
+	__raw_writel(tmp, base + KS2_DDRPHY_DCR_OFFSET);
+
+	__raw_writel(phy_cfg->dtpr0, base + KS2_DDRPHY_DTPR0_OFFSET);
+	__raw_writel(phy_cfg->dtpr1, base + KS2_DDRPHY_DTPR1_OFFSET);
+	__raw_writel(phy_cfg->dtpr2, base + KS2_DDRPHY_DTPR2_OFFSET);
+	__raw_writel(phy_cfg->mr0,   base + KS2_DDRPHY_MR0_OFFSET);
+	__raw_writel(phy_cfg->mr1,   base + KS2_DDRPHY_MR1_OFFSET);
+	__raw_writel(phy_cfg->mr2,   base + KS2_DDRPHY_MR2_OFFSET);
+	__raw_writel(phy_cfg->dtcr,  base + KS2_DDRPHY_DTCR_OFFSET);
+	__raw_writel(phy_cfg->pgcr2, base + KS2_DDRPHY_PGCR2_OFFSET);
+
+	__raw_writel(phy_cfg->zq0cr1, base + KS2_DDRPHY_ZQ0CR1_OFFSET);
+	__raw_writel(phy_cfg->zq1cr1, base + KS2_DDRPHY_ZQ1CR1_OFFSET);
+	__raw_writel(phy_cfg->zq2cr1, base + KS2_DDRPHY_ZQ2CR1_OFFSET);
+
+	__raw_writel(phy_cfg->pir_v1, base + KS2_DDRPHY_PIR_OFFSET);
+	while ((__raw_readl(base + KS2_DDRPHY_PGSR0_OFFSET) & 0x1) != 0x1)
+		;
+
+	__raw_writel(phy_cfg->pir_v2, base + KS2_DDRPHY_PIR_OFFSET);
+	while ((__raw_readl(base + KS2_DDRPHY_PGSR0_OFFSET) & 0x1) != 0x1)
+		;
+}
+
+void init_ddremif(u32 base, struct ddr3_emif_config *emif_cfg)
+{
+	__raw_writel(emif_cfg->sdcfg,  base + KS2_DDR3_SDCFG_OFFSET);
+	__raw_writel(emif_cfg->sdtim1, base + KS2_DDR3_SDTIM1_OFFSET);
+	__raw_writel(emif_cfg->sdtim2, base + KS2_DDR3_SDTIM2_OFFSET);
+	__raw_writel(emif_cfg->sdtim3, base + KS2_DDR3_SDTIM3_OFFSET);
+	__raw_writel(emif_cfg->sdtim4, base + KS2_DDR3_SDTIM4_OFFSET);
+	__raw_writel(emif_cfg->zqcfg,  base + KS2_DDR3_ZQCFG_OFFSET);
+	__raw_writel(emif_cfg->sdrfc,  base + KS2_DDR3_SDRFC_OFFSET);
+}

arch/arm/cpu/armv7/keystone/init.c new file +5 -0

new file mode 100644
index 0000000..044015a
@@ -0,0 +1,56 @@
+/*
+ * Keystone2: Architecture initialization
+ *
+ * (C) Copyright 2012-2014
+ *     Texas Instruments Incorporated, <www.ti.com>

arch/arm/cpu/armv7/keystone/init.c new file +41 -0

+{
+	__raw_writel(KEYSTONE_KICK0_MAGIC, KEYSTONE_KICK0);
+	__raw_writel(KEYSTONE_KICK1_MAGIC, KEYSTONE_KICK1);
+}
+
+int arch_cpu_init(void)
+{
+	chip_configuration_unlock();
+	icache_enable();
+
+#ifdef CONFIG_SOC_K2HK
+	share_all_segments(8);
+	share_all_segments(9);
+	share_all_segments(10); /* QM PDSP */
+	share_all_segments(11); /* PCIE */
+#endif
+
+	return 0;
+}
+
+void reset_cpu(ulong addr)
+{
+	volatile u32 *rstctrl = (volatile u32 *)(KS2_RSTCTRL);
+	u32 tmp;
+
+	tmp = *rstctrl & KS2_RSTCTRL_MASK;
+	*rstctrl = tmp | KS2_RSTCTRL_KEY;
+
+	*rstctrl &= KS2_RSTCTRL_SWRST;
+
+	for (;;)
+		;
+}
+
+void enable_caches(void)
+{
+#ifndef CONFIG_SYS_DCACHE_OFF
+	/* Enable D-cache. I-cache is already enabled in start.S */
+	dcache_enable();
+#endif
+}