arm: Introduce arch/arm/mach-omap2 for OMAP2 derivative platforms

This moves what was in arch/arm/cpu/armv7/omap-common in to
arch/arm/mach-omap2 and moves
arch/arm/cpu/armv7/{am33xx,omap3,omap4,omap5} in to arch/arm/mach-omap2
as subdirectories.  All refernces to the former locations are updated to
the current locations.  For the logic to decide what our outputs are,
consolidate the tests into a single config.mk rather than including 4.

Signed-off-by: Tom Rini <trini@konsulko.com>

1 files changed, 0 insertions, 121 deletions

diff --git a/arch/arm/cpu/armv7/omap-common/abb.c b/arch/arm/cpu/armv7/omap-common/abb.c
deleted file mode 100644
index a0add66..0000000
--- a/arch/arm/cpu/armv7/omap-common/abb.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * Adaptive Body Bias programming sequence for OMAP family
- *
- * (C) Copyright 2013
- * Texas Instruments, <www.ti.com>
- *
- * Andrii Tseglytskyi <andrii.tseglytskyi@ti.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/omap_common.h>
-#include <asm/arch/clock.h>
-#include <asm/io.h>
-#include <asm/arch/sys_proto.h>
-
-__weak s8 abb_setup_ldovbb(u32 fuse, u32 ldovbb)
-{
-	return -1;
-}
-
-static void abb_setup_timings(u32 setup)
-{
-	u32 sys_rate, sr2_cnt, clk_cycles;
-
-	/*
-	 * SR2_WTCNT_VALUE is the settling time for the ABB ldo after a
-	 * transition and must be programmed with the correct time at boot.
-	 * The value programmed into the register is the number of SYS_CLK
-	 * clock cycles that match a given wall time profiled for the ldo.
-	 * This value depends on:
-	 * settling time of ldo in micro-seconds (varies per OMAP family),
-	 * of clock cycles per SYS_CLK period (varies per OMAP family),
-	 * the SYS_CLK frequency in MHz (varies per board)
-	 * The formula is:
-	 *
-	 *		       ldo settling time (in micro-seconds)
-	 * SR2_WTCNT_VALUE = ------------------------------------------
-	 *		    (# system clock cycles) * (sys_clk period)
-	 *
-	 * Put another way:
-	 *
-	 * SR2_WTCNT_VALUE = settling time / (# SYS_CLK cycles / SYS_CLK rate))
-	 *
-	 * To avoid dividing by zero multiply both "# clock cycles" and
-	 * "settling time" by 10 such that the final result is the one we want.
-	 */
-
-	/* calculate SR2_WTCNT_VALUE */
-	sys_rate = DIV_ROUND_CLOSEST(V_OSCK, 1000000);
-	clk_cycles = DIV_ROUND_CLOSEST(OMAP_ABB_CLOCK_CYCLES * 10, sys_rate);
-	sr2_cnt = DIV_ROUND_CLOSEST(OMAP_ABB_SETTLING_TIME * 10, clk_cycles);
-
-	setbits_le32(setup,
-		     sr2_cnt << (ffs(OMAP_ABB_SETUP_SR2_WTCNT_VALUE_MASK) - 1));
-}
-
-void abb_setup(u32 fuse, u32 ldovbb, u32 setup, u32 control,
-	       u32 txdone, u32 txdone_mask, u32 opp)
-{
-	u32 abb_type_mask, opp_sel_mask;
-
-	/* sanity check */
-	if (!setup || !control || !txdone)
-		return;
-
-	/* setup ABB only in case of Fast or Slow OPP */
-	switch (opp) {
-	case OMAP_ABB_FAST_OPP:
-		abb_type_mask = OMAP_ABB_SETUP_ACTIVE_FBB_SEL_MASK;
-		opp_sel_mask = OMAP_ABB_CONTROL_FAST_OPP_SEL_MASK;
-		break;
-	case OMAP_ABB_SLOW_OPP:
-		abb_type_mask = OMAP_ABB_SETUP_ACTIVE_RBB_SEL_MASK;
-		opp_sel_mask = OMAP_ABB_CONTROL_SLOW_OPP_SEL_MASK;
-		break;
-	default:
-	       return;
-	}
-
-	/*
-	 * For some OMAP silicons additional setup for LDOVBB register is
-	 * required. This is determined by data retrieved from corresponding
-	 * OPP EFUSE register. Data, which is retrieved from EFUSE - is
-	 * ABB enable/disable flag and VSET value, which must be copied
-	 * to LDOVBB register. If function call fails - return quietly,
-	 * it means no ABB is required for such silicon.
-	 *
-	 * For silicons, which don't require LDOVBB setup "fuse" and
-	 * "ldovbb" offsets are not defined. ABB will be initialized in
-	 * the common way for them.
-	 */
-	if (fuse && ldovbb) {
-		if (abb_setup_ldovbb(fuse, ldovbb))
-			return;
-	}
-
-	/* clear ABB registers */
-	writel(0, setup);
-	writel(0, control);
-
-	/* configure timings, based on oscillator value */
-	abb_setup_timings(setup);
-
-	/* clear pending interrupts before setup */
-	setbits_le32(txdone, txdone_mask);
-
-	/* select ABB type */
-	setbits_le32(setup, abb_type_mask | OMAP_ABB_SETUP_SR2EN_MASK);
-
-	/* initiate ABB ldo change */
-	setbits_le32(control, opp_sel_mask | OMAP_ABB_CONTROL_OPP_CHANGE_MASK);
-
-	/* wait until transition complete */
-	if (!wait_on_value(txdone_mask, txdone_mask, (void *)txdone, LDELAY))
-		puts("Error: ABB txdone is not set\n");
-
-	/* clear ABB tranxdone */
-	setbits_le32(txdone, txdone_mask);
-}