e6acc4062c
None of the headers are included from outside of the mach-pxa directory, so move them all in there. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* linux/arch/arm/mach-pxa/pxa2xx.c
|
|
*
|
|
* code specific to pxa2xx
|
|
*
|
|
* Copyright (C) 2008 Dmitry Baryshkov
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/device.h>
|
|
#include <linux/io.h>
|
|
|
|
#include "pxa2xx-regs.h"
|
|
#include "mfp-pxa25x.h"
|
|
#include "generic.h"
|
|
#include "reset.h"
|
|
#include "smemc.h"
|
|
#include <linux/soc/pxa/smemc.h>
|
|
#include <linux/platform_data/irda-pxaficp.h>
|
|
|
|
void pxa2xx_clear_reset_status(unsigned int mask)
|
|
{
|
|
/* RESET_STATUS_* has a 1:1 mapping with RCSR */
|
|
RCSR = mask;
|
|
}
|
|
|
|
static unsigned long pxa2xx_mfp_fir[] = {
|
|
GPIO46_FICP_RXD,
|
|
GPIO47_FICP_TXD,
|
|
};
|
|
|
|
static unsigned long pxa2xx_mfp_sir[] = {
|
|
GPIO46_STUART_RXD,
|
|
GPIO47_STUART_TXD,
|
|
};
|
|
|
|
static unsigned long pxa2xx_mfp_off[] = {
|
|
GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
|
|
GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
|
|
};
|
|
|
|
void pxa2xx_transceiver_mode(struct device *dev, int mode)
|
|
{
|
|
if (mode & IR_OFF) {
|
|
pxa2xx_mfp_config(pxa2xx_mfp_off, ARRAY_SIZE(pxa2xx_mfp_off));
|
|
} else if (mode & IR_SIRMODE) {
|
|
pxa2xx_mfp_config(pxa2xx_mfp_sir, ARRAY_SIZE(pxa2xx_mfp_sir));
|
|
} else if (mode & IR_FIRMODE) {
|
|
pxa2xx_mfp_config(pxa2xx_mfp_fir, ARRAY_SIZE(pxa2xx_mfp_fir));
|
|
} else
|
|
BUG();
|
|
}
|
|
EXPORT_SYMBOL_GPL(pxa2xx_transceiver_mode);
|
|
|
|
#define MDCNFG_DRAC2(mdcnfg) (((mdcnfg) >> 21) & 0x3)
|
|
#define MDCNFG_DRAC0(mdcnfg) (((mdcnfg) >> 5) & 0x3)
|
|
|
|
int pxa2xx_smemc_get_sdram_rows(void)
|
|
{
|
|
static int sdram_rows;
|
|
unsigned int drac2 = 0, drac0 = 0;
|
|
u32 mdcnfg;
|
|
|
|
if (sdram_rows)
|
|
return sdram_rows;
|
|
|
|
mdcnfg = readl_relaxed(MDCNFG);
|
|
|
|
if (mdcnfg & (MDCNFG_DE2 | MDCNFG_DE3))
|
|
drac2 = MDCNFG_DRAC2(mdcnfg);
|
|
|
|
if (mdcnfg & (MDCNFG_DE0 | MDCNFG_DE1))
|
|
drac0 = MDCNFG_DRAC0(mdcnfg);
|
|
|
|
sdram_rows = 1 << (11 + max(drac0, drac2));
|
|
return sdram_rows;
|
|
}
|