davinci: move psc support board-->cpu

Move DaVinci PSC support from board/* to cpu/* where it belongs.
The PSC module manages clocks and resets for all DaVinci-family
SoCs, and isn't at all board-specific.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

3 files changed, 1 insertions, 215 deletions

diff --git a/board/davinci/common/Makefile b/board/davinci/common/Makefile
index 127bb6e..8d9ea00 100644
--- a/board/davinci/common/Makefile
+++ b/board/davinci/common/Makefile
@@ -29,7 +29,7 @@ endif
 
 LIB	= $(obj)lib$(VENDOR).a
 
-COBJS	:= psc.o misc.o
+COBJS	:= misc.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
diff --git a/board/davinci/common/psc.c b/board/davinci/common/psc.c
deleted file mode 100644
index 28e2a4b..0000000
--- a/board/davinci/common/psc.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * Power and Sleep Controller (PSC) functions.
- *
- * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
- * Copyright (C) 2008 Lyrtech <www.lyrtech.com>
- * Copyright (C) 2004 Texas Instruments.
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <common.h>
-#include <asm/arch/hardware.h>
-
-#define PINMUX0_EMACEN (1 << 31)
-#define PINMUX0_AECS5  (1 << 11)
-#define PINMUX0_AECS4  (1 << 10)
-
-#define PINMUX1_I2C    (1 <<  7)
-#define PINMUX1_UART1  (1 <<  1)
-#define PINMUX1_UART0  (1 <<  0)
-
-/*
- * The DM6446 includes two separate power domains: "Always On" and "DSP". The
- * "Always On" power domain is always on when the chip is on. The "Always On"
- * domain is powered by the VDD pins of the DM6446. The majority of the
- * DM6446's modules lie within the "Always On" power domain. A separate
- * domain called the "DSP" domain houses the C64x+ and VICP. The "DSP" domain
- * is not always on. The "DSP" power domain is powered by the CVDDDSP pins of
- * the DM6446.
- */
-
-/* Works on Always On power domain only (no PD argument) */
-void lpsc_on(unsigned int id)
-{
-	dv_reg_p mdstat, mdctl;
-
-	if (id >= DAVINCI_LPSC_GEM)
-		return;			/* Don't work on DSP Power Domain */
-
-	mdstat = REG_P(PSC_MDSTAT_BASE + (id * 4));
-	mdctl = REG_P(PSC_MDCTL_BASE + (id * 4));
-
-	while (REG(PSC_PTSTAT) & 0x01);
-
-	if ((*mdstat & 0x1f) == 0x03)
-		return;			/* Already on and enabled */
-
-	*mdctl |= 0x03;
-
-	/* Special treatment for some modules as for sprue14 p.7.4.2 */
-	switch (id) {
-	case DAVINCI_LPSC_VPSSSLV:
-	case DAVINCI_LPSC_EMAC:
-	case DAVINCI_LPSC_EMAC_WRAPPER:
-	case DAVINCI_LPSC_MDIO:
-	case DAVINCI_LPSC_USB:
-	case DAVINCI_LPSC_ATA:
-	case DAVINCI_LPSC_VLYNQ:
-	case DAVINCI_LPSC_UHPI:
-	case DAVINCI_LPSC_DDR_EMIF:
-	case DAVINCI_LPSC_AEMIF:
-	case DAVINCI_LPSC_MMC_SD:
-	case DAVINCI_LPSC_MEMSTICK:
-	case DAVINCI_LPSC_McBSP:
-	case DAVINCI_LPSC_GPIO:
-		*mdctl |= 0x200;
-		break;
-	}
-
-	REG(PSC_PTCMD) = 0x01;
-
-	while (REG(PSC_PTSTAT) & 0x03);
-	while ((*mdstat & 0x1f) != 0x03);	/* Probably an overkill... */
-}
-
-/* If DSPLINK is used, we don't want U-Boot to power on the DSP. */
-#if !defined(CONFIG_SYS_USE_DSPLINK)
-void dsp_on(void)
-{
-	int i;
-
-	if (REG(PSC_PDSTAT1) & 0x1f)
-		return;			/* Already on */
-
-	REG(PSC_GBLCTL) |= 0x01;
-	REG(PSC_PDCTL1) |= 0x01;
-	REG(PSC_PDCTL1) &= ~0x100;
-	REG(PSC_MDCTL_BASE + (DAVINCI_LPSC_GEM * 4)) |= 0x03;
-	REG(PSC_MDCTL_BASE + (DAVINCI_LPSC_GEM * 4)) &= 0xfffffeff;
-	REG(PSC_MDCTL_BASE + (DAVINCI_LPSC_IMCOP * 4)) |= 0x03;
-	REG(PSC_MDCTL_BASE + (DAVINCI_LPSC_IMCOP * 4)) &= 0xfffffeff;
-	REG(PSC_PTCMD) = 0x02;
-
-	for (i = 0; i < 100; i++) {
-		if (REG(PSC_EPCPR) & 0x02)
-			break;
-	}
-
-	REG(PSC_CHP_SHRTSW) = 0x01;
-	REG(PSC_PDCTL1) |= 0x100;
-	REG(PSC_EPCCR) = 0x02;
-
-	for (i = 0; i < 100; i++) {
-		if (!(REG(PSC_PTSTAT) & 0x02))
-			break;
-	}
-
-	REG(PSC_GBLCTL) &= ~0x1f;
-}
-#endif /* CONFIG_SYS_USE_DSPLINK */
-
-void davinci_enable_uart0(void)
-{
-	lpsc_on(DAVINCI_LPSC_UART0);
-
-	/* Bringup UART0 out of reset */
-	REG(UART0_PWREMU_MGMT) = 0x0000e003;
-
-	/* Enable UART0 MUX lines */
-	REG(PINMUX1) |= PINMUX1_UART0;
-}
-
-#ifdef CONFIG_DRIVER_TI_EMAC
-void davinci_enable_emac(void)
-{
-	lpsc_on(DAVINCI_LPSC_EMAC);
-	lpsc_on(DAVINCI_LPSC_EMAC_WRAPPER);
-	lpsc_on(DAVINCI_LPSC_MDIO);
-
-	/* Enable GIO3.3V cells used for EMAC */
-	REG(VDD3P3V_PWDN) = 0;
-
-	/* Enable EMAC. */
-	REG(PINMUX0) |= PINMUX0_EMACEN;
-}
-#endif
-
-void davinci_enable_i2c(void)
-{
-	lpsc_on(DAVINCI_LPSC_I2C);
-
-	/* Enable I2C pin Mux */
-	REG(PINMUX1) |= PINMUX1_I2C;
-}
-
-void davinci_errata_workarounds(void)
-{
-	/*
-	 * Workaround for TMS320DM6446 errata 1.3.22:
-	 *   PSC: PTSTAT Register Does Not Clear After Warm/Maximum Reset
-	 *   Revision(s) Affected: 1.3 and earlier
-	 */
-	REG(PSC_SILVER_BULLET) = 0;
-
-	/*
-	 * Set the PR_OLD_COUNT bits in the Bus Burst Priority Register (PBBPR)
-	 * as suggested in TMS320DM6446 errata 2.1.2:
-	 *
-	 * On DM6446 Silicon Revision 2.1 and earlier, under certain conditions
-	 * low priority modules can occupy the bus and prevent high priority
-	 * modules like the VPSS from getting the required DDR2 throughput.
-	 * A hex value of 0x20 should provide a good ARM (cache enabled)
-	 * performance and still allow good utilization by the VPSS or other
-	 * modules.
-	 */
-	REG(VBPR) = 0x20;
-}
diff --git a/board/davinci/common/psc.h b/board/davinci/common/psc.h
deleted file mode 100644
index b2dd7b5..0000000
--- a/board/davinci/common/psc.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (C) 2008 Lyrtech <www.lyrtech.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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __PSC_H
-#define __PSC_H
-
-void lpsc_on(unsigned int id);
-void dsp_on(void);
-void davinci_enable_uart0(void);
-void davinci_enable_emac(void);
-void davinci_enable_i2c(void);
-void davinci_errata_workarounds(void);
-
-#endif /* __PSC_H */