mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
81637e26b3
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: John Rigby <john.rigby@linaro.org>
90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/*
|
|
* (C) Copyright 2009 ST-Ericsson
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/hardware.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
struct clkrst {
|
|
unsigned int pcken;
|
|
unsigned int pckdis;
|
|
unsigned int kcken;
|
|
unsigned int kckdis;
|
|
};
|
|
|
|
static unsigned int clkrst_base[] = {
|
|
U8500_CLKRST1_BASE,
|
|
U8500_CLKRST2_BASE,
|
|
U8500_CLKRST3_BASE,
|
|
0,
|
|
U8500_CLKRST5_BASE,
|
|
U8500_CLKRST6_BASE,
|
|
U8500_CLKRST7_BASE, /* ED only */
|
|
};
|
|
|
|
/* Turn on peripheral clock at PRCC level */
|
|
void u8500_clock_enable(int periph, int cluster, int kern)
|
|
{
|
|
struct clkrst *clkrst = (struct clkrst *) clkrst_base[periph - 1];
|
|
|
|
if (kern != -1)
|
|
writel(1 << kern, &clkrst->kcken);
|
|
|
|
if (cluster != -1)
|
|
writel(1 << cluster, &clkrst->pcken);
|
|
}
|
|
|
|
void db8500_clocks_init(void)
|
|
{
|
|
/*
|
|
* Enable all clocks. This is u-boot, we can enable it all. There is no
|
|
* powersave in u-boot.
|
|
*/
|
|
|
|
u8500_clock_enable(1, 9, -1); /* GPIO0 */
|
|
u8500_clock_enable(2, 11, -1);/* GPIO1 */
|
|
u8500_clock_enable(3, 8, -1); /* GPIO2 */
|
|
u8500_clock_enable(5, 1, -1); /* GPIO3 */
|
|
u8500_clock_enable(3, 6, 6); /* UART2 */
|
|
u8500_clock_enable(3, 3, 3); /* I2C0 */
|
|
u8500_clock_enable(1, 5, 5); /* SDI0 */
|
|
u8500_clock_enable(2, 4, 2); /* SDI4 */
|
|
u8500_clock_enable(6, 6, -1); /* MTU0 */
|
|
u8500_clock_enable(3, 4, 4); /* SDI2 */
|
|
|
|
/*
|
|
* Enabling clocks for all devices which are AMBA devices in the
|
|
* kernel. Otherwise they will not get probe()'d because the
|
|
* peripheral ID register will not be powered.
|
|
*/
|
|
|
|
/* XXX: some of these differ between ED/V1 */
|
|
|
|
u8500_clock_enable(1, 1, 1); /* UART1 */
|
|
u8500_clock_enable(1, 0, 0); /* UART0 */
|
|
u8500_clock_enable(3, 2, 2); /* SSP1 */
|
|
u8500_clock_enable(3, 1, 1); /* SSP0 */
|
|
u8500_clock_enable(2, 8, -1); /* SPI0 */
|
|
u8500_clock_enable(2, 5, 3); /* MSP2 */
|
|
}
|