Tegra20: Move some include files to arch-tegra for sharing with Tegra30

The move is pretty straight-forward. ap20.h and tegra20.h were renamed to ap.h and tegra.h.
Some files remain in arch-tegra20 but 'include' a file in 'arch-tegra' with #defines & structs
that will be common between T20 and T30 HW. HW-specific #defines, etc. stay in the 'arch-tegra20'
'root' file.

All boards build OK w/MAKEALL -s tegra20. Checkpatch.pl runs clean. Seaboard works OK.

Signed-off-by: Tom Warren <twarren@nvidia.com>

50 files changed, 630 insertions, 516 deletions

diff --git a/arch/arm/cpu/arm720t/tegra-common/spl.c b/arch/arm/cpu/arm720t/tegra-common/spl.c
index 6c16dce..3139c65 100644
--- a/arch/arm/cpu/arm720t/tegra-common/spl.c
+++ b/arch/arm/cpu/arm720t/tegra-common/spl.c
@@ -25,8 +25,6 @@
 #include <common.h>
 #include <asm/u-boot.h>
 #include <asm/utils.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/arch/clock.h>
 #include <nand.h>
 #include <mmc.h>
 #include <fat.h>
@@ -39,13 +37,13 @@
 #include "cpu.h"
 
 #include <asm/io.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/pmc.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/scu.h>
-#include <common.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/scu.h>
+#include <asm/arch-tegra/sys_proto.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
diff --git a/arch/arm/cpu/arm720t/tegra20/cpu.c b/arch/arm/cpu/arm720t/tegra20/cpu.c
index 8b72938..ef7f375 100644
--- a/arch/arm/cpu/arm720t/tegra20/cpu.c
+++ b/arch/arm/cpu/arm720t/tegra20/cpu.c
@@ -21,14 +21,14 @@
 * MA 02111-1307 USA
 */
 
+#include <common.h>
 #include <asm/io.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/pmc.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/scu.h>
-#include <common.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/scu.h>
 #include "../tegra-common/cpu.h"
 
 /* Returns 1 if the current CPU executing is a Cortex-A9, else 0 */
diff --git a/arch/arm/cpu/armv7/tegra-common/cmd_enterrcm.c b/arch/arm/cpu/armv7/tegra-common/cmd_enterrcm.c
index 925f841..f74ddcb 100644
--- a/arch/arm/cpu/armv7/tegra-common/cmd_enterrcm.c
+++ b/arch/arm/cpu/armv7/tegra-common/cmd_enterrcm.c
@@ -40,8 +40,8 @@
  */
 
 #include <common.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/pmc.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/pmc.h>
 
 static int do_enterrcm(cmd_tbl_t *cmdtp, int flag, int argc,
 		       char * const argv[])
diff --git a/arch/arm/cpu/armv7/tegra20/usb.c b/arch/arm/cpu/armv7/tegra20/usb.c
index 1b52b16..1bccf2b 100644
--- a/arch/arm/cpu/armv7/tegra20/usb.c
+++ b/arch/arm/cpu/armv7/tegra20/usb.c
@@ -24,15 +24,15 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm-generic/gpio.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/arch/uart.h>
+#include <asm/arch/tegra.h>
 #include <asm/arch/usb.h>
 #include <usb/ulpi.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/sys_proto.h>
+#include <asm/arch-tegra/uart.h>
 #include <libfdt.h>
 #include <fdtdec.h>
 
diff --git a/arch/arm/cpu/tegra-common/ap.c b/arch/arm/cpu/tegra-common/ap.c
index c0ca6eb..c4eb137 100644
--- a/arch/arm/cpu/tegra-common/ap.c
+++ b/arch/arm/cpu/tegra-common/ap.c
@@ -20,14 +20,14 @@
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */
+#include <common.h>
 #include <asm/io.h>
-#include <asm/arch/ap20.h>
-#include <asm/arch/fuse.h>
 #include <asm/arch/gp_padctrl.h>
-#include <asm/arch/pmc.h>
-#include <asm/arch/scu.h>
-#include <asm/arch/warmboot.h>
-#include <common.h>
+#include <asm/arch-tegra/ap.h>
+#include <asm/arch-tegra/fuse.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/scu.h>
+#include <asm/arch-tegra/warmboot.h>
 
 int tegra_get_chip_type(void)
 {
diff --git a/arch/arm/cpu/tegra-common/board.c b/arch/arm/cpu/tegra-common/board.c
index 8a8d338..ff90a52 100644
--- a/arch/arm/cpu/tegra-common/board.c
+++ b/arch/arm/cpu/tegra-common/board.c
@@ -25,10 +25,10 @@
 #include <asm/io.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
-#include <asm/arch/pmc.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/warmboot.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/sys_proto.h>
+#include <asm/arch-tegra/warmboot.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
diff --git a/arch/arm/cpu/tegra-common/timer.c b/arch/arm/cpu/tegra-common/timer.c
index 562e414..034ea5a 100644
--- a/arch/arm/cpu/tegra-common/timer.c
+++ b/arch/arm/cpu/tegra-common/timer.c
@@ -37,8 +37,8 @@
 
 #include <common.h>
 #include <asm/io.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/timer.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/timer.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
diff --git a/arch/arm/cpu/tegra20-common/clock.c b/arch/arm/cpu/tegra20-common/clock.c
index 2403874..bca777e 100644
--- a/arch/arm/cpu/tegra20-common/clock.c
+++ b/arch/arm/cpu/tegra20-common/clock.c
@@ -21,12 +21,12 @@
 
 /* Tegra20 Clock control functions */
 
+#include <common.h>
 #include <asm/io.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/timer.h>
-#include <asm/arch/tegra20.h>
-#include <common.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/timer.h>
 #include <div64.h>
 #include <fdtdec.h>
 
diff --git a/arch/arm/cpu/tegra20-common/emc.c b/arch/arm/cpu/tegra20-common/emc.c
index ffc05e4..97420d7 100644
--- a/arch/arm/cpu/tegra20-common/emc.c
+++ b/arch/arm/cpu/tegra20-common/emc.c
@@ -23,11 +23,11 @@
 #include <common.h>
 #include <fdtdec.h>
 #include <asm/io.h>
-#include <asm/arch/ap20.h>
+#include <asm/arch-tegra/ap.h>
 #include <asm/arch/apb_misc.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/emc.h>
-#include <asm/arch/tegra20.h>
+#include <asm/arch/tegra.h>
 
 /*
  * The EMC registers have shadow registers.  When the EMC clock is updated
diff --git a/arch/arm/cpu/tegra20-common/pinmux.c b/arch/arm/cpu/tegra20-common/pinmux.c
index 70e84df..08b8305 100644
--- a/arch/arm/cpu/tegra20-common/pinmux.c
+++ b/arch/arm/cpu/tegra20-common/pinmux.c
@@ -21,10 +21,10 @@
 
 /* Tegra20 pin multiplexing functions */
 
+#include <common.h>
 #include <asm/io.h>
-#include <asm/arch/tegra20.h>
+#include <asm/arch/tegra.h>
 #include <asm/arch/pinmux.h>
-#include <common.h>
 
 
 /*
diff --git a/arch/arm/cpu/tegra20-common/pmu.c b/arch/arm/cpu/tegra20-common/pmu.c
index 53505e9..2282953 100644
--- a/arch/arm/cpu/tegra20-common/pmu.c
+++ b/arch/arm/cpu/tegra20-common/pmu.c
@@ -24,10 +24,10 @@
 #include <common.h>
 #include <tps6586x.h>
 #include <asm/io.h>
-#include <asm/arch/ap20.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/tegra_i2c.h>
-#include <asm/arch/sys_proto.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/ap.h>
+#include <asm/arch-tegra/tegra_i2c.h>
+#include <asm/arch-tegra/sys_proto.h>
 
 #define VDD_CORE_NOMINAL_T25	0x17	/* 1.3v */
 #define VDD_CPU_NOMINAL_T25	0x10	/* 1.125v */
diff --git a/arch/arm/cpu/tegra20-common/warmboot.c b/arch/arm/cpu/tegra20-common/warmboot.c
index 6ce995e..157b9ab 100644
--- a/arch/arm/cpu/tegra20-common/warmboot.c
+++ b/arch/arm/cpu/tegra20-common/warmboot.c
@@ -24,17 +24,17 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/errno.h>
-#include <asm/arch/ap20.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/pmc.h>
-#include <asm/arch/pinmux.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/fuse.h>
 #include <asm/arch/emc.h>
 #include <asm/arch/gp_padctrl.h>
-#include <asm/arch/warmboot.h>
+#include <asm/arch/pinmux.h>
 #include <asm/arch/sdram_param.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/ap.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/fuse.h>
+#include <asm/arch-tegra/warmboot.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -361,8 +361,8 @@ int warmboot_prepare_code(u32 seg_address, u32 seg_length)
 	/* Populate the header. */
 	dst_header->length_insecure = length + sizeof(struct wb_header);
 	dst_header->length_secure = length + sizeof(struct wb_header);
-	dst_header->destination = AP20_WB_RUN_ADDRESS;
-	dst_header->entry_point = AP20_WB_RUN_ADDRESS;
+	dst_header->destination = NV_WB_RUN_ADDRESS;
+	dst_header->entry_point = NV_WB_RUN_ADDRESS;
 	dst_header->code_length = length;
 
 	if (is_encrypted) {
diff --git a/arch/arm/cpu/tegra20-common/warmboot_avp.c b/arch/arm/cpu/tegra20-common/warmboot_avp.c
index 80a5a15..bc6281d 100644
--- a/arch/arm/cpu/tegra20-common/warmboot_avp.c
+++ b/arch/arm/cpu/tegra20-common/warmboot_avp.c
@@ -23,14 +23,14 @@
 
 #include <common.h>
 #include <asm/io.h>
-#include <asm/arch/ap20.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/flow.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/pmc.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/warmboot.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/ap.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/warmboot.h>
 #include "warmboot_avp.h"
 
 #define DEBUG_RESET_CORESIGHT
@@ -58,7 +58,7 @@ void wb_start(void)
 					/* no input, no clobber list */
 	);
 
-	if (reg != AP20_WB_RUN_ADDRESS)
+	if (reg != NV_WB_RUN_ADDRESS)
 		goto do_reset;
 
 	/* Are we running with AVP? */
diff --git a/arch/arm/include/asm/arch-tegra20/ap20.h b/arch/arm/include/asm/arch-tegra/ap.h
index 70d94c5..70d94c5 100644
--- a/arch/arm/include/asm/arch-tegra20/ap20.h
+++ b/arch/arm/include/asm/arch-tegra/ap.h
diff --git a/arch/arm/include/asm/arch-tegra20/board.h b/arch/arm/include/asm/arch-tegra/board.h
index a90d36c..a90d36c 100644
--- a/arch/arm/include/asm/arch-tegra20/board.h
+++ b/arch/arm/include/asm/arch-tegra/board.h
diff --git a/arch/arm/include/asm/arch-tegra20/clk_rst.h b/arch/arm/include/asm/arch-tegra/clk_rst.h
index 8c3be91..8c3be91 100644
--- a/arch/arm/include/asm/arch-tegra20/clk_rst.h
+++ b/arch/arm/include/asm/arch-tegra/clk_rst.h
diff --git a/arch/arm/include/asm/arch-tegra/clock.h b/arch/arm/include/asm/arch-tegra/clock.h
new file mode 100644
index 0000000..3eff163
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra/clock.h
@@ -0,0 +1,253 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* Tegra clock control functions */
+
+#ifndef _CLOCK_H
+#define _CLOCK_H
+
+/* 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_COUNT,
+};
+
+#include <asm/arch/clock-tables.h>
+/* PLL stabilization delay in usec */
+#define CLOCK_PLL_STABLE_DELAY_US 300
+
+/* return the current oscillator clock frequency */
+enum clock_osc_freq clock_get_osc_freq(void);
+
+/**
+ * Start PLL using the provided configuration parameters.
+ *
+ * @param id	clock id
+ * @param divm	input divider
+ * @param divn	feedback divider
+ * @param divp	post divider 2^n
+ * @param cpcon	charge pump setup control
+ * @param lfcon	loop filter setup control
+ *
+ * @returns monotonic time in us that the PLL will be stable
+ */
+unsigned long clock_start_pll(enum clock_id id, u32 divm, u32 divn,
+		u32 divp, u32 cpcon, u32 lfcon);
+
+/**
+ * Read low-level parameters of a PLL.
+ *
+ * @param id	clock id to read (note: USB is not supported)
+ * @param divm	returns input divider
+ * @param divn	returns feedback divider
+ * @param divp	returns post divider 2^n
+ * @param cpcon	returns charge pump setup control
+ * @param lfcon	returns loop filter setup control
+ *
+ * @returns 0 if ok, -1 on error (invalid clock id)
+ */
+int clock_ll_read_pll(enum clock_id clkid, u32 *divm, u32 *divn,
+		      u32 *divp, u32 *cpcon, u32 *lfcon);
+
+/*
+ * Enable a clock
+ *
+ * @param id	clock id
+ */
+void clock_enable(enum periph_id clkid);
+
+/*
+ * Disable a clock
+ *
+ * @param id	clock id
+ */
+void clock_disable(enum periph_id clkid);
+
+/*
+ * Set whether a clock is enabled or disabled.
+ *
+ * @param id		clock id
+ * @param enable	1 to enable, 0 to disable
+ */
+void clock_set_enable(enum periph_id clkid, int enable);
+
+/**
+ * Reset a peripheral. This puts it in reset, waits for a delay, then takes
+ * it out of reset and waits for th delay again.
+ *
+ * @param periph_id	peripheral to reset
+ * @param us_delay	time to delay in microseconds
+ */
+void reset_periph(enum periph_id periph_id, int us_delay);
+
+/**
+ * Put a peripheral into or out of reset.
+ *
+ * @param periph_id	peripheral to reset
+ * @param enable	1 to put into reset, 0 to take out of reset
+ */
+void reset_set_enable(enum periph_id periph_id, int enable);
+
+
+/* CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET/CLR_0 */
+enum crc_reset_id {
+	/* Things we can hold in reset for each CPU */
+	crc_rst_cpu = 1,
+	crc_rst_de = 1 << 2,	/* What is de? */
+	crc_rst_watchdog = 1 << 3,
+	crc_rst_debug = 1 << 4,
+};
+
+/**
+ * Put parts of the CPU complex into or out of reset.\
+ *
+ * @param cpu		cpu number (0 or 1 on Tegra2)
+ * @param which		which parts of the complex to affect (OR of crc_reset_id)
+ * @param reset		1 to assert reset, 0 to de-assert
+ */
+void reset_cmplx_set_enable(int cpu, int which, int reset);
+
+/**
+ * Set the source for a peripheral clock. This plus the divisor sets the
+ * clock rate. You need to look up the datasheet to see the meaning of the
+ * source parameter as it changes for each peripheral.
+ *
+ * Warning: This function is only for use pre-relocation. Please use
+ * clock_start_periph_pll() instead.
+ *
+ * @param periph_id	peripheral to adjust
+ * @param source	source clock (0, 1, 2 or 3)
+ */
+void clock_ll_set_source(enum periph_id periph_id, unsigned source);
+
+/**
+ * Set the source and divisor for a peripheral clock. This sets the
+ * clock rate. You need to look up the datasheet to see the meaning of the
+ * source parameter as it changes for each peripheral.
+ *
+ * Warning: This function is only for use pre-relocation. Please use
+ * clock_start_periph_pll() instead.
+ *
+ * @param periph_id	peripheral to adjust
+ * @param source	source clock (0, 1, 2 or 3)
+ * @param divisor	divisor value to use
+ */
+void clock_ll_set_source_divisor(enum periph_id periph_id, unsigned source,
+		unsigned divisor);
+
+/**
+ * Start a peripheral PLL clock at the given rate. This also resets the
+ * peripheral.
+ *
+ * @param periph_id	peripheral to start
+ * @param parent	PLL id of required parent clock
+ * @param rate		Required clock rate in Hz
+ * @return rate selected in Hz, or -1U if something went wrong
+ */
+unsigned clock_start_periph_pll(enum periph_id periph_id,
+		enum clock_id parent, unsigned rate);
+
+/**
+ * Returns the rate of a peripheral clock in Hz. Since the caller almost
+ * certainly knows the parent clock (having just set it) we require that
+ * this be passed in so we don't need to work it out.
+ *
+ * @param periph_id	peripheral to start
+ * @param parent	PLL id of parent clock (used to calculate rate, you
+ *			must know this!)
+ * @return clock rate of peripheral in Hz
+ */
+unsigned long clock_get_periph_rate(enum periph_id periph_id,
+		enum clock_id parent);
+
+/**
+ * Adjust peripheral PLL clock to the given rate. This does not reset the
+ * peripheral. If a second stage divisor is not available, pass NULL for
+ * extra_div. If it is available, then this parameter will return the
+ * divisor selected (which will be a power of 2 from 1 to 256).
+ *
+ * @param periph_id	peripheral to start
+ * @param parent	PLL id of required parent clock
+ * @param rate		Required clock rate in Hz
+ * @param extra_div	value for the second-stage divisor (NULL if one is
+			not available)
+ * @return rate selected in Hz, or -1U if something went wrong
+ */
+unsigned clock_adjust_periph_pll_div(enum periph_id periph_id,
+		enum clock_id parent, unsigned rate, int *extra_div);
+
+/**
+ * Returns the clock rate of a specified clock, in Hz.
+ *
+ * @param parent	PLL id of clock to check
+ * @return rate of clock in Hz
+ */
+unsigned clock_get_rate(enum clock_id clkid);
+
+/**
+ * Start up a UART using low-level calls
+ *
+ * Prior to relocation clock_start_periph_pll() cannot be called. This
+ * function provides a way to set up a UART using low-level calls which
+ * do not require BSS.
+ *
+ * @param periph_id	Peripheral ID of UART to enable (e,g, PERIPH_ID_UART1)
+ */
+void clock_ll_start_uart(enum periph_id periph_id);
+
+/**
+ * Decode a peripheral ID from a device tree node.
+ *
+ * This works by looking up the peripheral's 'clocks' node and reading out
+ * the second cell, which is the clock number / peripheral ID.
+ *
+ * @param blob		FDT blob to use
+ * @param node		Node to look at
+ * @return peripheral ID, or PERIPH_ID_NONE if none
+ */
+enum periph_id clock_decode_periph_id(const void *blob, int node);
+
+/**
+ * Checks if the oscillator bypass is enabled (XOBP bit)
+ *
+ * @return 1 if bypass is enabled, 0 if not
+ */
+int clock_get_osc_bypass(void);
+
+/*
+ * Checks that clocks are valid and prints a warning if not
+ *
+ * @return 0 if ok, -1 on error
+ */
+int clock_verify(void);
+
+/* Initialize the clocks */
+void clock_init(void);
+
+/* Initialize the PLLs */
+void clock_early_init(void);
+
+#endif	/* _CLOCK_H_ */
diff --git a/arch/arm/include/asm/arch-tegra20/fuse.h b/arch/arm/include/asm/arch-tegra/fuse.h
index b7e3808..b7e3808 100644
--- a/arch/arm/include/asm/arch-tegra20/fuse.h
+++ b/arch/arm/include/asm/arch-tegra/fuse.h
diff --git a/arch/arm/include/asm/arch-tegra/gpio.h b/arch/arm/include/asm/arch-tegra/gpio.h
new file mode 100644
index 0000000..0a972d5
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra/gpio.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2011, Google Inc. All rights reserved.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _TEGRA_GPIO_H_
+#define _TEGRA_GPIO_H_
+
+#define MAX_NUM_GPIOS           (TEGRA_GPIO_PORTS * TEGRA_GPIO_BANKS * 8)
+#define GPIO_NAME_SIZE		20	/* gpio_request max label len */
+
+#define GPIO_BANK(x)		((x) >> 5)
+#define GPIO_PORT(x)		(((x) >> 3) & 0x3)
+#define GPIO_FULLPORT(x)	((x) >> 3)
+#define GPIO_BIT(x)		((x) & 0x7)
+
+/*
+ * Tegra-specific GPIO API
+ */
+
+void gpio_info(void);
+
+#define gpio_status()	gpio_info()
+#endif	/* TEGRA_GPIO_H_ */
diff --git a/arch/arm/include/asm/arch-tegra20/mmc.h b/arch/arm/include/asm/arch-tegra/mmc.h
index 5c95047..5c95047 100644
--- a/arch/arm/include/asm/arch-tegra20/mmc.h
+++ b/arch/arm/include/asm/arch-tegra/mmc.h
diff --git a/arch/arm/include/asm/arch-tegra20/pmc.h b/arch/arm/include/asm/arch-tegra/pmc.h
index b1d47cd..b1d47cd 100644
--- a/arch/arm/include/asm/arch-tegra20/pmc.h
+++ b/arch/arm/include/asm/arch-tegra/pmc.h
diff --git a/arch/arm/include/asm/arch-tegra20/scu.h b/arch/arm/include/asm/arch-tegra/scu.h
index 787ded0..787ded0 100644
--- a/arch/arm/include/asm/arch-tegra20/scu.h
+++ b/arch/arm/include/asm/arch-tegra/scu.h
diff --git a/arch/arm/include/asm/arch-tegra20/sys_proto.h b/arch/arm/include/asm/arch-tegra/sys_proto.h
index 919aec7..919aec7 100644
--- a/arch/arm/include/asm/arch-tegra20/sys_proto.h
+++ b/arch/arm/include/asm/arch-tegra/sys_proto.h
diff --git a/arch/arm/include/asm/arch-tegra20/tegra20.h b/arch/arm/include/asm/arch-tegra/tegra.h
index c9485a1..6d2e62f 100644
--- a/arch/arm/include/asm/arch-tegra20/tegra20.h
+++ b/arch/arm/include/asm/arch-tegra/tegra.h
@@ -21,10 +21,9 @@
  * MA 02111-1307 USA
  */
 
-#ifndef _TEGRA20_H_
-#define _TEGRA20_H_
+#ifndef _TEGRA_H_
+#define _TEGRA_H_
 
-#define NV_PA_SDRAM_BASE	0x00000000
 #define NV_PA_ARM_PERIPHBASE	0x50040000
 #define NV_PA_PG_UP_BASE	0x60000000
 #define NV_PA_TMRUS_BASE	0x60005010
@@ -41,11 +40,11 @@
 #define NV_PA_APB_UARTE_BASE	(NV_PA_APB_MISC_BASE + 0x6400)
 #define NV_PA_NAND_BASE		(NV_PA_APB_MISC_BASE + 0x8000)
 #define NV_PA_SPI_BASE		(NV_PA_APB_MISC_BASE + 0xC380)
+#define TEGRA_DVC_BASE		(NV_PA_APB_MISC_BASE + 0xD000)
 #define NV_PA_PMC_BASE		(NV_PA_APB_MISC_BASE + 0xE400)
+#define NV_PA_EMC_BASE		(NV_PA_APB_MISC_BASE + 0xF400)
 #define NV_PA_FUSE_BASE		(NV_PA_APB_MISC_BASE + 0xF800)
 #define NV_PA_CSITE_BASE	0x70040000
-#define TEGRA_USB1_BASE		0xC5000000
-#define TEGRA_USB3_BASE		0xC5008000
 #define TEGRA_USB_ADDR_MASK	0xFFFFC000
 
 #define NV_PA_SDRC_CS0		NV_PA_SDRAM_BASE
@@ -60,11 +59,10 @@ struct timerus {
 };
 
 /* Address at which WB code runs, it must not overlap Bootrom's IRAM usage */
-#define AP20_WB_RUN_ADDRESS	0x40020000
+#define NV_WB_RUN_ADDRESS	0x40020000
 
 #define NVBOOTINFOTABLE_BCTSIZE	0x38	/* BCT size in BIT in IRAM */
 #define NVBOOTINFOTABLE_BCTPTR	0x3C	/* BCT pointer in BIT in IRAM */
-#define BCT_ODMDATA_OFFSET	4068	/* 12 bytes from end of BCT */
 
 /* These are the available SKUs (product types) for Tegra */
 enum {
@@ -89,4 +87,4 @@ enum {
 #define PRM_RSTCTRL		NV_PA_PMC_BASE
 #endif
 
-#endif	/* TEGRA20_H */
+#endif	/* TEGRA_H */
diff --git a/arch/arm/include/asm/arch-tegra20/tegra_i2c.h b/arch/arm/include/asm/arch-tegra/tegra_i2c.h
index 6abfe4e..2650744 100644
--- a/arch/arm/include/asm/arch-tegra20/tegra_i2c.h
+++ b/arch/arm/include/asm/arch-tegra/tegra_i2c.h
@@ -1,5 +1,5 @@
 /*
- * NVIDIA Tegra20 I2C controller
+ * NVIDIA Tegra I2C controller
  *
  * Copyright 2010-2011 NVIDIA Corporation
  *
@@ -161,4 +161,4 @@ struct i2c_ctlr {
  */
 int tegra_i2c_get_dvc_bus_num(void);
 
-#endif
+#endif	/* _TEGRA_I2C_H_ */
diff --git a/arch/arm/include/asm/arch-tegra20/tegra_mmc.h b/arch/arm/include/asm/arch-tegra/tegra_mmc.h
index dd746ca..dd746ca 100644
--- a/arch/arm/include/asm/arch-tegra20/tegra_mmc.h
+++ b/arch/arm/include/asm/arch-tegra/tegra_mmc.h
diff --git a/arch/arm/include/asm/arch-tegra20/tegra_spi.h b/arch/arm/include/asm/arch-tegra/tegra_spi.h
index d53a93f..d53a93f 100644
--- a/arch/arm/include/asm/arch-tegra20/tegra_spi.h
+++ b/arch/arm/include/asm/arch-tegra/tegra_spi.h
diff --git a/arch/arm/include/asm/arch-tegra20/timer.h b/arch/arm/include/asm/arch-tegra/timer.h
index fdb99a7..fdb99a7 100644
--- a/arch/arm/include/asm/arch-tegra20/timer.h
+++ b/arch/arm/include/asm/arch-tegra/timer.h
diff --git a/arch/arm/include/asm/arch-tegra20/uart.h b/arch/arm/include/asm/arch-tegra/uart.h
index aea29a7..aea29a7 100644
--- a/arch/arm/include/asm/arch-tegra20/uart.h
+++ b/arch/arm/include/asm/arch-tegra/uart.h
diff --git a/arch/arm/include/asm/arch-tegra20/warmboot.h b/arch/arm/include/asm/arch-tegra/warmboot.h
index 99ac2e7..99ac2e7 100644
--- a/arch/arm/include/asm/arch-tegra20/warmboot.h
+++ b/arch/arm/include/asm/arch-tegra/warmboot.h
diff --git a/arch/arm/include/asm/arch-tegra20/clock-tables.h b/arch/arm/include/asm/arch-tegra20/clock-tables.h
new file mode 100644
index 0000000..089b3e7
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra20/clock-tables.h
@@ -0,0 +1,183 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * Copyright (c) 2010-2012 NVIDIA Corporation <www.nvidia.com>
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* Tegra20 clock PLL tables */
+
+#ifndef _CLOCK_TABLES_H_
+#define _CLOCK_TABLES_H_
+
+/* The PLLs supported by the hardware */
+enum clock_id {
+	CLOCK_ID_FIRST,
+	CLOCK_ID_CGENERAL = CLOCK_ID_FIRST,
+	CLOCK_ID_MEMORY,
+	CLOCK_ID_PERIPH,
+	CLOCK_ID_AUDIO,
+	CLOCK_ID_USB,
+	CLOCK_ID_DISPLAY,
+
+	/* now the simple ones */
+	CLOCK_ID_FIRST_SIMPLE,
+	CLOCK_ID_XCPU = CLOCK_ID_FIRST_SIMPLE,
+	CLOCK_ID_EPCI,
+	CLOCK_ID_SFROM32KHZ,
+
+	/* These are the base clocks (inputs to the Tegra SOC) */
+	CLOCK_ID_32KHZ,
+	CLOCK_ID_OSC,
+
+	CLOCK_ID_COUNT,	/* number of clocks */
+	CLOCK_ID_NONE = -1,
+};
+
+/* The clocks supported by the hardware */
+enum periph_id {
+	PERIPH_ID_FIRST,
+
+	/* Low word: 31:0 */
+	PERIPH_ID_CPU = PERIPH_ID_FIRST,
+	PERIPH_ID_RESERVED1,
+	PERIPH_ID_RESERVED2,
+	PERIPH_ID_AC97,
+	PERIPH_ID_RTC,
+	PERIPH_ID_TMR,
+	PERIPH_ID_UART1,
+	PERIPH_ID_UART2,
+
+	/* 8 */
+	PERIPH_ID_GPIO,
+	PERIPH_ID_SDMMC2,
+	PERIPH_ID_SPDIF,
+	PERIPH_ID_I2S1,
+	PERIPH_ID_I2C1,
+	PERIPH_ID_NDFLASH,
+	PERIPH_ID_SDMMC1,
+	PERIPH_ID_SDMMC4,
+
+	/* 16 */
+	PERIPH_ID_TWC,
+	PERIPH_ID_PWM,
+	PERIPH_ID_I2S2,
+	PERIPH_ID_EPP,
+	PERIPH_ID_VI,
+	PERIPH_ID_2D,
+	PERIPH_ID_USBD,
+	PERIPH_ID_ISP,
+
+	/* 24 */
+	PERIPH_ID_3D,
+	PERIPH_ID_IDE,
+	PERIPH_ID_DISP2,
+	PERIPH_ID_DISP1,
+	PERIPH_ID_HOST1X,
+	PERIPH_ID_VCP,
+	PERIPH_ID_RESERVED30,
+	PERIPH_ID_CACHE2,
+
+	/* Middle word: 63:32 */
+	PERIPH_ID_MEM,
+	PERIPH_ID_AHBDMA,
+	PERIPH_ID_APBDMA,
+	PERIPH_ID_RESERVED35,
+	PERIPH_ID_KBC,
+	PERIPH_ID_STAT_MON,
+	PERIPH_ID_PMC,
+	PERIPH_ID_FUSE,
+
+	/* 40 */
+	PERIPH_ID_KFUSE,
+	PERIPH_ID_SBC1,
+	PERIPH_ID_SNOR,
+	PERIPH_ID_SPI1,
+	PERIPH_ID_SBC2,
+	PERIPH_ID_XIO,
+	PERIPH_ID_SBC3,
+	PERIPH_ID_DVC_I2C,
+
+	/* 48 */
+	PERIPH_ID_DSI,
+	PERIPH_ID_TVO,
+	PERIPH_ID_MIPI,
+	PERIPH_ID_HDMI,
+	PERIPH_ID_CSI,
+	PERIPH_ID_TVDAC,
+	PERIPH_ID_I2C2,
+	PERIPH_ID_UART3,
+
+	/* 56 */
+	PERIPH_ID_RESERVED56,
+	PERIPH_ID_EMC,
+	PERIPH_ID_USB2,
+	PERIPH_ID_USB3,
+	PERIPH_ID_MPE,
+	PERIPH_ID_VDE,
+	PERIPH_ID_BSEA,
+	PERIPH_ID_BSEV,
+
+	/* Upper word 95:64 */
+	PERIPH_ID_SPEEDO,
+	PERIPH_ID_UART4,
+	PERIPH_ID_UART5,
+	PERIPH_ID_I2C3,
+	PERIPH_ID_SBC4,
+	PERIPH_ID_SDMMC3,
+	PERIPH_ID_PCIE,
+	PERIPH_ID_OWR,
+
+	/* 72 */
+	PERIPH_ID_AFI,
+	PERIPH_ID_CORESIGHT,
+	PERIPH_ID_RESERVED74,
+	PERIPH_ID_AVPUCQ,
+	PERIPH_ID_RESERVED76,
+	PERIPH_ID_RESERVED77,
+	PERIPH_ID_RESERVED78,
+	PERIPH_ID_RESERVED79,
+
+	/* 80 */
+	PERIPH_ID_RESERVED80,
+	PERIPH_ID_RESERVED81,
+	PERIPH_ID_RESERVED82,
+	PERIPH_ID_RESERVED83,
+	PERIPH_ID_IRAMA,
+	PERIPH_ID_IRAMB,
+	PERIPH_ID_IRAMC,
+	PERIPH_ID_IRAMD,
+
+	/* 88 */
+	PERIPH_ID_CRAM2,
+
+	PERIPH_ID_COUNT,
+	PERIPH_ID_NONE = -1,
+};
+
+/* Converts a clock number to a clock register: 0=L, 1=H, 2=U */
+#define PERIPH_REG(id) ((id) >> 5)
+
+/* Mask value for a clock (within PERIPH_REG(id)) */
+#define PERIPH_MASK(id) (1 << ((id) & 0x1f))
+
+/* return 1 if a PLL ID is in range, and not a simple PLL */
+#define clock_id_is_pll(id) ((id) >= CLOCK_ID_FIRST && \
+		(id) < CLOCK_ID_FIRST_SIMPLE)
+
+#endif	/* _CLOCK_TABLES_H_ */
diff --git a/arch/arm/include/asm/arch-tegra20/clock.h b/arch/arm/include/asm/arch-tegra20/clock.h
index ff83bbf..f592b95 100644
--- a/arch/arm/include/asm/arch-tegra20/clock.h
+++ b/arch/arm/include/asm/arch-tegra20/clock.h
@@ -19,389 +19,11 @@
  * MA 02111-1307 USA
  */
 
-/* Tegra2 clock control functions */
+/* Tegra20 clock control functions */
 
-#ifndef _CLOCK_H
-#define _CLOCK_H
+#ifndef _TEGRA20_CLOCK_H
+#define _TEGRA20_CLOCK_H
 
-/* 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,
+#include <asm/arch-tegra/clock.h>
 
-	CLOCK_OSC_FREQ_COUNT,
-};
-
-/* The PLLs supported by the hardware */
-enum clock_id {
-	CLOCK_ID_FIRST,
-	CLOCK_ID_CGENERAL = CLOCK_ID_FIRST,
-	CLOCK_ID_MEMORY,
-	CLOCK_ID_PERIPH,
-	CLOCK_ID_AUDIO,
-	CLOCK_ID_USB,
-	CLOCK_ID_DISPLAY,
-
-	/* now the simple ones */
-	CLOCK_ID_FIRST_SIMPLE,
-	CLOCK_ID_XCPU = CLOCK_ID_FIRST_SIMPLE,
-	CLOCK_ID_EPCI,
-	CLOCK_ID_SFROM32KHZ,
-
-	/* These are the base clocks (inputs to the Tegra SOC) */
-	CLOCK_ID_32KHZ,
-	CLOCK_ID_OSC,
-
-	CLOCK_ID_COUNT,	/* number of clocks */
-	CLOCK_ID_NONE = -1,
-};
-
-/* The clocks supported by the hardware */
-enum periph_id {
-	PERIPH_ID_FIRST,
-
-	/* Low word: 31:0 */
-	PERIPH_ID_CPU = PERIPH_ID_FIRST,
-	PERIPH_ID_RESERVED1,
-	PERIPH_ID_RESERVED2,
-	PERIPH_ID_AC97,
-	PERIPH_ID_RTC,
-	PERIPH_ID_TMR,
-	PERIPH_ID_UART1,
-	PERIPH_ID_UART2,
-
-	/* 8 */
-	PERIPH_ID_GPIO,
-	PERIPH_ID_SDMMC2,
-	PERIPH_ID_SPDIF,
-	PERIPH_ID_I2S1,
-	PERIPH_ID_I2C1,
-	PERIPH_ID_NDFLASH,
-	PERIPH_ID_SDMMC1,
-	PERIPH_ID_SDMMC4,
-
-	/* 16 */
-	PERIPH_ID_TWC,
-	PERIPH_ID_PWM,
-	PERIPH_ID_I2S2,
-	PERIPH_ID_EPP,
-	PERIPH_ID_VI,
-	PERIPH_ID_2D,
-	PERIPH_ID_USBD,
-	PERIPH_ID_ISP,
-
-	/* 24 */
-	PERIPH_ID_3D,
-	PERIPH_ID_IDE,
-	PERIPH_ID_DISP2,
-	PERIPH_ID_DISP1,
-	PERIPH_ID_HOST1X,
-	PERIPH_ID_VCP,
-	PERIPH_ID_RESERVED30,
-	PERIPH_ID_CACHE2,
-
-	/* Middle word: 63:32 */
-	PERIPH_ID_MEM,
-	PERIPH_ID_AHBDMA,
-	PERIPH_ID_APBDMA,
-	PERIPH_ID_RESERVED35,
-	PERIPH_ID_KBC,
-	PERIPH_ID_STAT_MON,
-	PERIPH_ID_PMC,
-	PERIPH_ID_FUSE,
-
-	/* 40 */
-	PERIPH_ID_KFUSE,
-	PERIPH_ID_SBC1,
-	PERIPH_ID_SNOR,
-	PERIPH_ID_SPI1,
-	PERIPH_ID_SBC2,
-	PERIPH_ID_XIO,
-	PERIPH_ID_SBC3,
-	PERIPH_ID_DVC_I2C,
-
-	/* 48 */
-	PERIPH_ID_DSI,
-	PERIPH_ID_TVO,
-	PERIPH_ID_MIPI,
-	PERIPH_ID_HDMI,
-	PERIPH_ID_CSI,
-	PERIPH_ID_TVDAC,
-	PERIPH_ID_I2C2,
-	PERIPH_ID_UART3,
-
-	/* 56 */
-	PERIPH_ID_RESERVED56,
-	PERIPH_ID_EMC,
-	PERIPH_ID_USB2,
-	PERIPH_ID_USB3,
-	PERIPH_ID_MPE,
-	PERIPH_ID_VDE,
-	PERIPH_ID_BSEA,
-	PERIPH_ID_BSEV,
-
-	/* Upper word 95:64 */
-	PERIPH_ID_SPEEDO,
-	PERIPH_ID_UART4,
-	PERIPH_ID_UART5,
-	PERIPH_ID_I2C3,
-	PERIPH_ID_SBC4,
-	PERIPH_ID_SDMMC3,
-	PERIPH_ID_PCIE,
-	PERIPH_ID_OWR,
-
-	/* 72 */
-	PERIPH_ID_AFI,
-	PERIPH_ID_CORESIGHT,
-	PERIPH_ID_RESERVED74,
-	PERIPH_ID_AVPUCQ,
-	PERIPH_ID_RESERVED76,
-	PERIPH_ID_RESERVED77,
-	PERIPH_ID_RESERVED78,
-	PERIPH_ID_RESERVED79,
-
-	/* 80 */
-	PERIPH_ID_RESERVED80,
-	PERIPH_ID_RESERVED81,
-	PERIPH_ID_RESERVED82,
-	PERIPH_ID_RESERVED83,
-	PERIPH_ID_IRAMA,
-	PERIPH_ID_IRAMB,
-	PERIPH_ID_IRAMC,
-	PERIPH_ID_IRAMD,
-
-	/* 88 */
-	PERIPH_ID_CRAM2,
-
-	PERIPH_ID_COUNT,
-	PERIPH_ID_NONE = -1,
-};
-
-/* Converts a clock number to a clock register: 0=L, 1=H, 2=U */
-#define PERIPH_REG(id) ((id) >> 5)
-
-/* Mask value for a clock (within PERIPH_REG(id)) */
-#define PERIPH_MASK(id) (1 << ((id) & 0x1f))
-
-/* return 1 if a PLL ID is in range, and not a simple PLL */
-#define clock_id_is_pll(id) ((id) >= CLOCK_ID_FIRST && \
-		(id) < CLOCK_ID_FIRST_SIMPLE)
-
-/* PLL stabilization delay in usec */
-#define CLOCK_PLL_STABLE_DELAY_US 300
-
-/* return the current oscillator clock frequency */
-enum clock_osc_freq clock_get_osc_freq(void);
-
-/**
- * Start PLL using the provided configuration parameters.
- *
- * @param id	clock id
- * @param divm	input divider
- * @param divn	feedback divider
- * @param divp	post divider 2^n
- * @param cpcon	charge pump setup control
- * @param lfcon	loop filter setup control
- *
- * @returns monotonic time in us that the PLL will be stable
- */
-unsigned long clock_start_pll(enum clock_id id, u32 divm, u32 divn,
-		u32 divp, u32 cpcon, u32 lfcon);
-
-/**
- * Read low-level parameters of a PLL.
- *
- * @param id	clock id to read (note: USB is not supported)
- * @param divm	returns input divider
- * @param divn	returns feedback divider
- * @param divp	returns post divider 2^n
- * @param cpcon	returns charge pump setup control
- * @param lfcon	returns loop filter setup control
- *
- * @returns 0 if ok, -1 on error (invalid clock id)
- */
-int clock_ll_read_pll(enum clock_id clkid, u32 *divm, u32 *divn,
-		      u32 *divp, u32 *cpcon, u32 *lfcon);
-
-/*
- * Enable a clock
- *
- * @param id	clock id
- */
-void clock_enable(enum periph_id clkid);
-
-/*
- * Disable a clock
- *
- * @param id	clock id
- */
-void clock_disable(enum periph_id clkid);
-
-/*
- * Set whether a clock is enabled or disabled.
- *
- * @param id		clock id
- * @param enable	1 to enable, 0 to disable
- */
-void clock_set_enable(enum periph_id clkid, int enable);
-
-/**
- * Reset a peripheral. This puts it in reset, waits for a delay, then takes
- * it out of reset and waits for th delay again.
- *
- * @param periph_id	peripheral to reset
- * @param us_delay	time to delay in microseconds
- */
-void reset_periph(enum periph_id periph_id, int us_delay);
-
-/**
- * Put a peripheral into or out of reset.
- *
- * @param periph_id	peripheral to reset
- * @param enable	1 to put into reset, 0 to take out of reset
- */
-void reset_set_enable(enum periph_id periph_id, int enable);
-
-
-/* CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET/CLR_0 */
-enum crc_reset_id {
-	/* Things we can hold in reset for each CPU */
-	crc_rst_cpu = 1,
-	crc_rst_de = 1 << 2,	/* What is de? */
-	crc_rst_watchdog = 1 << 3,
-	crc_rst_debug = 1 << 4,
-};
-
-/**
- * Put parts of the CPU complex into or out of reset.\
- *
- * @param cpu		cpu number (0 or 1 on Tegra2)
- * @param which		which parts of the complex to affect (OR of crc_reset_id)
- * @param reset		1 to assert reset, 0 to de-assert
- */
-void reset_cmplx_set_enable(int cpu, int which, int reset);
-
-/**
- * Set the source for a peripheral clock. This plus the divisor sets the
- * clock rate. You need to look up the datasheet to see the meaning of the
- * source parameter as it changes for each peripheral.
- *
- * Warning: This function is only for use pre-relocation. Please use
- * clock_start_periph_pll() instead.
- *
- * @param periph_id	peripheral to adjust
- * @param source	source clock (0, 1, 2 or 3)
- */
-void clock_ll_set_source(enum periph_id periph_id, unsigned source);
-
-/**
- * Set the source and divisor for a peripheral clock. This sets the
- * clock rate. You need to look up the datasheet to see the meaning of the
- * source parameter as it changes for each peripheral.
- *
- * Warning: This function is only for use pre-relocation. Please use
- * clock_start_periph_pll() instead.
- *
- * @param periph_id	peripheral to adjust
- * @param source	source clock (0, 1, 2 or 3)
- * @param divisor	divisor value to use
- */
-void clock_ll_set_source_divisor(enum periph_id periph_id, unsigned source,
-		unsigned divisor);
-
-/**
- * Start a peripheral PLL clock at the given rate. This also resets the
- * peripheral.
- *
- * @param periph_id	peripheral to start
- * @param parent	PLL id of required parent clock
- * @param rate		Required clock rate in Hz
- * @return rate selected in Hz, or -1U if something went wrong
- */
-unsigned clock_start_periph_pll(enum periph_id periph_id,
-		enum clock_id parent, unsigned rate);
-
-/**
- * Returns the rate of a peripheral clock in Hz. Since the caller almost
- * certainly knows the parent clock (having just set it) we require that
- * this be passed in so we don't need to work it out.
- *
- * @param periph_id	peripheral to start
- * @param parent	PLL id of parent clock (used to calculate rate, you
- *			must know this!)
- * @return clock rate of peripheral in Hz
- */
-unsigned long clock_get_periph_rate(enum periph_id periph_id,
-		enum clock_id parent);
-
-/**
- * Adjust peripheral PLL clock to the given rate. This does not reset the
- * peripheral. If a second stage divisor is not available, pass NULL for
- * extra_div. If it is available, then this parameter will return the
- * divisor selected (which will be a power of 2 from 1 to 256).
- *
- * @param periph_id	peripheral to start
- * @param parent	PLL id of required parent clock
- * @param rate		Required clock rate in Hz
- * @param extra_div	value for the second-stage divisor (NULL if one is
-			not available)
- * @return rate selected in Hz, or -1U if something went wrong
- */
-unsigned clock_adjust_periph_pll_div(enum periph_id periph_id,
-		enum clock_id parent, unsigned rate, int *extra_div);
-
-/**
- * Returns the clock rate of a specified clock, in Hz.
- *
- * @param parent	PLL id of clock to check
- * @return rate of clock in Hz
- */
-unsigned clock_get_rate(enum clock_id clkid);
-
-/**
- * Start up a UART using low-level calls
- *
- * Prior to relocation clock_start_periph_pll() cannot be called. This
- * function provides a way to set up a UART using low-level calls which
- * do not require BSS.
- *
- * @param periph_id	Peripheral ID of UART to enable (e,g, PERIPH_ID_UART1)
- */
-void clock_ll_start_uart(enum periph_id periph_id);
-
-/**
- * Decode a peripheral ID from a device tree node.
- *
- * This works by looking up the peripheral's 'clocks' node and reading out
- * the second cell, which is the clock number / peripheral ID.
- *
- * @param blob		FDT blob to use
- * @param node		Node to look at
- * @return peripheral ID, or PERIPH_ID_NONE if none
- */
-enum periph_id clock_decode_periph_id(const void *blob, int node);
-
-/**
- * Checks if the oscillator bypass is enabled (XOBP bit)
- *
- * @return 1 if bypass is enabled, 0 if not
- */
-int clock_get_osc_bypass(void);
-
-/*
- * Checks that clocks are valid and prints a warning if not
- *
- * @return 0 if ok, -1 on error
- */
-int clock_verify(void);
-
-/* Initialize the clocks */
-void clock_init(void);
-
-/* Initialize the PLLs */
-void clock_early_init(void);
-
-#endif
+#endif	/* _TEGRA20_CLOCK_H */
diff --git a/arch/arm/include/asm/arch-tegra20/gpio.h b/arch/arm/include/asm/arch-tegra20/gpio.h
index 06be4c2..e2848fe 100644
--- a/arch/arm/include/asm/arch-tegra20/gpio.h
+++ b/arch/arm/include/asm/arch-tegra20/gpio.h
@@ -20,8 +20,8 @@
  * MA 02111-1307 USA
  */
 
-#ifndef _TEGRA_GPIO_H_
-#define _TEGRA_GPIO_H_
+#ifndef _TEGRA20_GPIO_H_
+#define _TEGRA20_GPIO_H_
 
 /*
  * The Tegra 2x GPIO controller has 224 GPIOs arranged in 7 banks of 4 ports,
@@ -29,8 +29,8 @@
  */
 #define TEGRA_GPIO_PORTS	4	/* number of ports per bank */
 #define TEGRA_GPIO_BANKS	7	/* number of banks */
-#define MAX_NUM_GPIOS		(TEGRA_GPIO_PORTS * TEGRA_GPIO_BANKS * 8)
-#define GPIO_NAME_SIZE		20	/* gpio_request max label len */
+
+#include <asm/arch-tegra/gpio.h>
 
 /* GPIO Controller registers for a single bank */
 struct gpio_ctlr_bank {
@@ -48,11 +48,6 @@ struct gpio_ctlr {
 	struct gpio_ctlr_bank gpio_bank[TEGRA_GPIO_BANKS];
 };
 
-#define GPIO_BANK(x)		((x) >> 5)
-#define GPIO_PORT(x)		(((x) >> 3) & 0x3)
-#define GPIO_FULLPORT(x)	((x) >> 3)
-#define GPIO_BIT(x)		((x) & 0x7)
-
 enum gpio_pin {
 	GPIO_PA0 = 0,	/* pin 0 */
 	GPIO_PA1,
@@ -280,11 +275,4 @@ enum gpio_pin {
 	GPIO_PBB7,	/* pin 223 */
 };
 
-/*
- * Tegra20-specific GPIO API
- */
-
-void gpio_info(void);
-
-#define gpio_status()	gpio_info()
-#endif	/* TEGRA_GPIO_H_ */
+#endif	/* TEGRA20_GPIO_H_ */
diff --git a/arch/arm/include/asm/arch-tegra20/tegra.h b/arch/arm/include/asm/arch-tegra20/tegra.h
new file mode 100644
index 0000000..ca98733
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra20/tegra.h
@@ -0,0 +1,36 @@
+/*
+ * (C) Copyright 2010,2011
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _TEGRA20_H_
+#define _TEGRA20_H_
+
+#define NV_PA_SDRAM_BASE	0x00000000
+
+#include <asm/arch-tegra/tegra.h>
+
+#define TEGRA_USB1_BASE		0xC5000000
+#define TEGRA_USB3_BASE		0xC5008000
+
+#define BCT_ODMDATA_OFFSET	4068	/* 12 bytes from end of BCT */
+
+#endif	/* TEGRA20_H */
diff --git a/board/avionic-design/common/tamonten.c b/board/avionic-design/common/tamonten.c
index 93f12ea..7c05d49 100644
--- a/board/avionic-design/common/tamonten.c
+++ b/board/avionic-design/common/tamonten.c
@@ -27,16 +27,15 @@
 #include <ns16550.h>
 #include <asm/io.h>
 #include <asm/gpio.h>
-#include <asm/arch/board.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/uart.h>
-#include <asm/arch/mmc.h>
-
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/board.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/mmc.h>
+#include <asm/arch-tegra/sys_proto.h>
+#include <asm/arch-tegra/uart.h>
 #ifdef CONFIG_TEGRA_MMC
 #include <mmc.h>
 #endif
diff --git a/board/compal/paz00/paz00.c b/board/compal/paz00/paz00.c
index 0f8f167..c73ac5f 100644
--- a/board/compal/paz00/paz00.c
+++ b/board/compal/paz00/paz00.c
@@ -16,9 +16,9 @@
 
 #include <common.h>
 #include <asm/io.h>
-#include <asm/arch/tegra20.h>
+#include <asm/arch/tegra.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/mmc.h>
+#include <asm/arch-tegra/mmc.h>
 #include <asm/gpio.h>
 #ifdef CONFIG_TEGRA_MMC
 #include <mmc.h>
diff --git a/board/compulab/trimslice/trimslice.c b/board/compulab/trimslice/trimslice.c
index 893cca8..7b22a87 100644
--- a/board/compulab/trimslice/trimslice.c
+++ b/board/compulab/trimslice/trimslice.c
@@ -22,14 +22,14 @@
  */
 
 #include <common.h>
-#include <i2c.h>
 #include <asm/io.h>
-#include <asm/arch/tegra20.h>
+#include <asm/arch/tegra.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/mmc.h>
+#include <asm/arch-tegra/mmc.h>
 #include <asm/gpio.h>
+#include <i2c.h>
 #ifdef CONFIG_TEGRA_MMC
 #include <mmc.h>
 #endif
diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c
index afe832a..8821fdf 100644
--- a/board/nvidia/common/board.c
+++ b/board/nvidia/common/board.c
@@ -25,20 +25,19 @@
 #include <ns16550.h>
 #include <linux/compiler.h>
 #include <asm/io.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/sys_proto.h>
-
-#include <asm/arch/board.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/emc.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/pmc.h>
 #include <asm/arch/pmu.h>
-#include <asm/arch/uart.h>
-#include <asm/arch/warmboot.h>
-#include <spi.h>
+#include <asm/arch/tegra.h>
 #include <asm/arch/usb.h>
+#include <asm/arch-tegra/board.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/sys_proto.h>
+#include <asm/arch-tegra/uart.h>
+#include <asm/arch-tegra/warmboot.h>
+#include <spi.h>
 #include <i2c.h>
 #include "board.h"
 #include "emc.h"
diff --git a/board/nvidia/common/emc.c b/board/nvidia/common/emc.c
index 739d4bd..26b6ec7 100644
--- a/board/nvidia/common/emc.c
+++ b/board/nvidia/common/emc.c
@@ -22,13 +22,13 @@
 
 #include <common.h>
 #include <asm/io.h>
-#include <asm/arch/ap20.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/emc.h>
 #include <asm/arch/pmu.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/arch/tegra20.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/ap.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/sys_proto.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
diff --git a/board/nvidia/common/uart-spi-switch.c b/board/nvidia/common/uart-spi-switch.c
index 6b21758..a0aeb7f 100644
--- a/board/nvidia/common/uart-spi-switch.c
+++ b/board/nvidia/common/uart-spi-switch.c
@@ -24,8 +24,8 @@
 #include <asm/gpio.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/uart-spi-switch.h>
-#include <asm/arch/tegra20.h>
-#include <asm/arch/tegra_spi.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/tegra_spi.h>
 
 
 /* position of the UART/SPI select switch */
diff --git a/board/nvidia/harmony/harmony.c b/board/nvidia/harmony/harmony.c
index b4a811d..c23a87d 100644
--- a/board/nvidia/harmony/harmony.c
+++ b/board/nvidia/harmony/harmony.c
@@ -23,11 +23,11 @@
 
 #include <common.h>
 #include <asm/io.h>
-#include <asm/arch/tegra20.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/mmc.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/mmc.h>
 #include <asm/gpio.h>
 #ifdef CONFIG_TEGRA_MMC
 #include <mmc.h>
diff --git a/board/nvidia/seaboard/seaboard.c b/board/nvidia/seaboard/seaboard.c
index 667f60a..ab90a5d 100644
--- a/board/nvidia/seaboard/seaboard.c
+++ b/board/nvidia/seaboard/seaboard.c
@@ -23,11 +23,11 @@
 
 #include <common.h>
 #include <asm/io.h>
-#include <asm/arch/tegra20.h>
+#include <asm/arch/tegra.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/mmc.h>
+#include <asm/arch-tegra/mmc.h>
 #include <asm/gpio.h>
 #ifdef CONFIG_TEGRA_MMC
 #include <mmc.h>
diff --git a/board/nvidia/whistler/whistler.c b/board/nvidia/whistler/whistler.c
index 598b2e5..af918c4 100644
--- a/board/nvidia/whistler/whistler.c
+++ b/board/nvidia/whistler/whistler.c
@@ -22,14 +22,14 @@
  */
 
 #include <common.h>
-#include <i2c.h>
 #include <asm/io.h>
-#include <asm/arch/tegra20.h>
+#include <asm/arch/tegra.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/mmc.h>
+#include <asm/arch-tegra/mmc.h>
 #include <asm/gpio.h>
+#include <i2c.h>
 #ifdef CONFIG_TEGRA_MMC
 #include <mmc.h>
 #endif
diff --git a/drivers/gpio/tegra_gpio.c b/drivers/gpio/tegra_gpio.c
index 747f4cf..2417968 100644
--- a/drivers/gpio/tegra_gpio.c
+++ b/drivers/gpio/tegra_gpio.c
@@ -30,7 +30,7 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/bitops.h>
-#include <asm/arch/tegra20.h>
+#include <asm/arch/tegra.h>
 #include <asm/gpio.h>
 
 enum {
diff --git a/drivers/i2c/tegra_i2c.c b/drivers/i2c/tegra_i2c.c
index e3be14e..efc77fa 100644
--- a/drivers/i2c/tegra_i2c.c
+++ b/drivers/i2c/tegra_i2c.c
@@ -26,12 +26,12 @@
 #include <fdtdec.h>
 #include <i2c.h>
 #include <asm/io.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/pinmux.h>
-#include <asm/arch/tegra_i2c.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/tegra_i2c.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
diff --git a/drivers/input/tegra-kbc.c b/drivers/input/tegra-kbc.c
index 6f1cfd8..ab7a9e3 100644
--- a/drivers/input/tegra-kbc.c
+++ b/drivers/input/tegra-kbc.c
@@ -30,7 +30,7 @@
 #include <asm/io.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
-#include <asm/arch/timer.h>
+#include <asm/arch-tegra/timer.h>
 #include <linux/input.h>
 
 DECLARE_GLOBAL_DATA_PTR;
diff --git a/drivers/mmc/tegra_mmc.c b/drivers/mmc/tegra_mmc.c
index ca8fad8..8fea6a6 100644
--- a/drivers/mmc/tegra_mmc.c
+++ b/drivers/mmc/tegra_mmc.c
@@ -20,12 +20,12 @@
  */
 
 #include <common.h>
-#include <mmc.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/tegra_mmc.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/tegra_mmc.h>
+#include <mmc.h>
 
 /* support 4 mmc hosts */
 struct mmc mmc_dev[4];
diff --git a/drivers/mtd/nand/tegra_nand.c b/drivers/mtd/nand/tegra_nand.c
index 8c1de34..2c1b533 100644
--- a/drivers/mtd/nand/tegra_nand.c
+++ b/drivers/mtd/nand/tegra_nand.c
@@ -26,12 +26,11 @@
 #include <common.h>
 #include <asm/io.h>
 #include <nand.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
-#include <asm/arch/gpio.h>
+#include <asm/arch-tegra/clk_rst.h>
 #include <asm/errno.h>
-#include <asm-generic/gpio.h>
+#include <asm/gpio.h>
 #include <fdtdec.h>
 #include "tegra_nand.h"
 
diff --git a/drivers/spi/tegra_spi.c b/drivers/spi/tegra_spi.c
index 18b00b2..9bb34e2 100644
--- a/drivers/spi/tegra_spi.c
+++ b/drivers/spi/tegra_spi.c
@@ -23,16 +23,15 @@
  */
 
 #include <common.h>
-
 #include <malloc.h>
-#include <spi.h>
 #include <asm/io.h>
 #include <asm/gpio.h>
-#include <asm/arch/clk_rst.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/uart-spi-switch.h>
-#include <asm/arch/tegra_spi.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/tegra_spi.h>
+#include <spi.h>
 
 #if defined(CONFIG_SPI_CORRUPTS_UART)
  #define corrupt_delay()	udelay(CONFIG_SPI_CORRUPTS_UART_DLY);
diff --git a/include/configs/tegra20-common.h b/include/configs/tegra20-common.h
index e213375..41fc0cb 100644
--- a/include/configs/tegra20-common.h
+++ b/include/configs/tegra20-common.h
@@ -36,7 +36,7 @@
 
 #define CONFIG_SYS_CACHELINE_SIZE	32
 
-#include <asm/arch/tegra20.h>		/* get chip and board defs */
+#include <asm/arch/tegra.h>		/* get chip and board defs */
 
 /*
  * Display CPU and Board information