linux/arch/arm/mach-omap2/common.c
Hemant Pedanekar a920360f03 ARM: OMAP: TI81XX: Prepare for addition of TI814X support
This patch updates existing macros, functions used for TI816X, to enable
addition of other SoCs belonging to TI81XX family (e.g., TI814X).

The approach taken is to use TI81XX/ti81xx for code/data going to be common
across all TI81XX devices.

cpu_is_ti81xx() is introduced to handle code common across TI81XX devices.

In addition, ti8168_evm_map_io() is now replaced with ti81xx_map_io() and moved
in mach-omap2/common.c as same will be used for TI814X and is not board
specific.

Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-13 10:46:44 -08:00

183 lines
4.5 KiB
C

/*
* linux/arch/arm/mach-omap2/common.c
*
* Code common to all OMAP2+ machines.
*
* Copyright (C) 2009 Texas Instruments
* Copyright (C) 2010 Nokia Corporation
* Tony Lindgren <tony@atomide.com>
* Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/io.h>
#include "common.h"
#include <plat/board.h>
#include <plat/mux.h>
#include <plat/clock.h>
#include "sdrc.h"
#include "control.h"
/* Global address base setup code */
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
static void __init __omap2_set_globals(struct omap_globals *omap2_globals)
{
omap2_set_globals_tap(omap2_globals);
omap2_set_globals_sdrc(omap2_globals);
omap2_set_globals_control(omap2_globals);
omap2_set_globals_prcm(omap2_globals);
}
#endif
#if defined(CONFIG_SOC_OMAP2420)
static struct omap_globals omap242x_globals = {
.class = OMAP242X_CLASS,
.tap = OMAP2_L4_IO_ADDRESS(0x48014000),
.sdrc = OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
.sms = OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE),
.ctrl = OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
.prm = OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE),
.cm = OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE),
};
void __init omap2_set_globals_242x(void)
{
__omap2_set_globals(&omap242x_globals);
}
void __init omap242x_map_io(void)
{
omap242x_map_common_io();
}
#endif
#if defined(CONFIG_SOC_OMAP2430)
static struct omap_globals omap243x_globals = {
.class = OMAP243X_CLASS,
.tap = OMAP2_L4_IO_ADDRESS(0x4900a000),
.sdrc = OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
.sms = OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE),
.ctrl = OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
.prm = OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE),
.cm = OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE),
};
void __init omap2_set_globals_243x(void)
{
__omap2_set_globals(&omap243x_globals);
}
void __init omap243x_map_io(void)
{
omap243x_map_common_io();
}
#endif
#if defined(CONFIG_ARCH_OMAP3)
static struct omap_globals omap3_globals = {
.class = OMAP343X_CLASS,
.tap = OMAP2_L4_IO_ADDRESS(0x4830A000),
.sdrc = OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
.sms = OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE),
.ctrl = OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
.prm = OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE),
.cm = OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
};
void __init omap2_set_globals_3xxx(void)
{
__omap2_set_globals(&omap3_globals);
}
void __init omap3_map_io(void)
{
omap34xx_map_common_io();
}
/*
* Adjust TAP register base such that omap3_check_revision accesses the correct
* TI81XX register for checking device ID (it adds 0x204 to tap base while
* TI81XX DEVICE ID register is at offset 0x600 from control base).
*/
#define TI81XX_TAP_BASE (TI81XX_CTRL_BASE + \
TI81XX_CONTROL_DEVICE_ID - 0x204)
static struct omap_globals ti81xx_globals = {
.class = OMAP343X_CLASS,
.tap = OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE),
.ctrl = OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
.prm = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
.cm = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
};
void __init omap2_set_globals_ti81xx(void)
{
__omap2_set_globals(&ti81xx_globals);
}
void __init ti81xx_map_io(void)
{
omapti81xx_map_common_io();
}
#define AM33XX_TAP_BASE (AM33XX_CTRL_BASE + \
TI81XX_CONTROL_DEVICE_ID - 0x204)
static struct omap_globals am33xx_globals = {
.class = AM335X_CLASS,
.tap = AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE),
.ctrl = AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
.prm = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
.cm = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
};
void __init omap2_set_globals_am33xx(void)
{
__omap2_set_globals(&am33xx_globals);
}
void __init am33xx_map_io(void)
{
omapam33xx_map_common_io();
}
#endif
#if defined(CONFIG_ARCH_OMAP4)
static struct omap_globals omap4_globals = {
.class = OMAP443X_CLASS,
.tap = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
.ctrl = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
.ctrl_pad = OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE),
.prm = OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE),
.cm = OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
.cm2 = OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE),
};
void __init omap2_set_globals_443x(void)
{
omap2_set_globals_tap(&omap4_globals);
omap2_set_globals_control(&omap4_globals);
omap2_set_globals_prcm(&omap4_globals);
}
void __init omap4_map_io(void)
{
omap44xx_map_common_io();
}
#endif