diff options
Diffstat (limited to 'arch/arm/mach-pxa/pxa2xx.c')
| -rw-r--r-- | arch/arm/mach-pxa/pxa2xx.c | 58 |
1 files changed, 26 insertions, 32 deletions
diff --git a/arch/arm/mach-pxa/pxa2xx.c b/arch/arm/mach-pxa/pxa2xx.c index 447dcbb22f6f..35c23a5d73a3 100644 --- a/arch/arm/mach-pxa/pxa2xx.c +++ b/arch/arm/mach-pxa/pxa2xx.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/arch/arm/mach-pxa/pxa2xx.c * * code specific to pxa2xx * * Copyright (C) 2008 Dmitry Baryshkov - * - * 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/module.h> @@ -15,11 +12,12 @@ #include <linux/device.h> #include <linux/io.h> -#include <mach/hardware.h> -#include <mach/pxa2xx-regs.h> -#include <mach/mfp-pxa25x.h> -#include <mach/reset.h> -#include <linux/platform_data/irda-pxaficp.h> +#include "pxa2xx-regs.h" +#include "mfp-pxa25x.h" +#include "generic.h" +#include "reset.h" +#include "smemc.h" +#include <linux/soc/pxa/smemc.h> void pxa2xx_clear_reset_status(unsigned int mask) { @@ -27,30 +25,26 @@ void pxa2xx_clear_reset_status(unsigned int mask) RCSR = mask; } -static unsigned long pxa2xx_mfp_fir[] = { - GPIO46_FICP_RXD, - GPIO47_FICP_TXD, -}; +#define MDCNFG_DRAC2(mdcnfg) (((mdcnfg) >> 21) & 0x3) +#define MDCNFG_DRAC0(mdcnfg) (((mdcnfg) >> 5) & 0x3) -static unsigned long pxa2xx_mfp_sir[] = { - GPIO46_STUART_RXD, - GPIO47_STUART_TXD, -}; +int pxa2xx_smemc_get_sdram_rows(void) +{ + static int sdram_rows; + unsigned int drac2 = 0, drac0 = 0; + u32 mdcnfg; -static unsigned long pxa2xx_mfp_off[] = { - GPIO46_GPIO | MFP_LPM_DRIVE_LOW, - GPIO47_GPIO | MFP_LPM_DRIVE_LOW, -}; + if (sdram_rows) + return sdram_rows; -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(); + 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; } -EXPORT_SYMBOL_GPL(pxa2xx_transceiver_mode); |