diff options
Diffstat (limited to 'arch/arm/mach-pxa/generic.c')
| -rw-r--r-- | arch/arm/mach-pxa/generic.c | 92 |
1 files changed, 54 insertions, 38 deletions
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index 42254175fcf4..02fdde7e3e34 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/arch/arm/mach-pxa/generic.c * @@ -7,10 +8,6 @@ * * Code common to all PXA machines. * - * 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. - * * Since this file should be linked before any other machine specific file, * the __initcall() here will be executed first. This serves as default * initialization stuff for PXA machines which can be overridden later if @@ -20,16 +17,21 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> +#include <linux/soc/pxa/cpu.h> +#include <linux/soc/pxa/smemc.h> +#include <linux/clk/pxa.h> -#include <mach/hardware.h> #include <asm/mach/map.h> #include <asm/mach-types.h> -#include <mach/reset.h> -#include <mach/smemc.h> -#include <mach/pxa3xx-regs.h> +#include "addr-map.h" +#include "irqs.h" +#include "reset.h" +#include "smemc.h" +#include "pxa3xx-regs.h" #include "generic.h" +#include <clocksource/pxa.h> void clear_reset_status(unsigned int mask) { @@ -41,35 +43,53 @@ void clear_reset_status(unsigned int mask) } } -unsigned long get_clock_tick_rate(void) +/* + * For non device-tree builds, keep legacy timer init + */ +void __init pxa_timer_init(void) { - unsigned long clock_tick_rate; - if (cpu_is_pxa25x()) - clock_tick_rate = 3686400; - else if (machine_is_mainstone()) - clock_tick_rate = 3249600; - else - clock_tick_rate = 3250000; + pxa25x_clocks_init(io_p2v(0x41300000)); + if (cpu_is_pxa27x()) + pxa27x_clocks_init(io_p2v(0x41300000)); + if (cpu_is_pxa3xx()) + pxa3xx_clocks_init(io_p2v(0x41340000), io_p2v(0x41350000)); + pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x40a00000)); +} - return clock_tick_rate; +void pxa_smemc_set_pcmcia_timing(int sock, u32 mcmem, u32 mcatt, u32 mcio) +{ + __raw_writel(mcmem, MCMEM(sock)); + __raw_writel(mcatt, MCATT(sock)); + __raw_writel(mcio, MCIO(sock)); } -EXPORT_SYMBOL(get_clock_tick_rate); +EXPORT_SYMBOL_GPL(pxa_smemc_set_pcmcia_timing); -/* - * Get the clock frequency as reflected by CCCR and the turbo flag. - * We assume these values have been applied via a fcs. - * If info is not 0 we also display the current settings. - */ -unsigned int get_clk_frequency_khz(int info) +void pxa_smemc_set_pcmcia_socket(int nr) { - if (cpu_is_pxa25x()) - return pxa25x_get_clk_frequency_khz(info); - else if (cpu_is_pxa27x()) - return pxa27x_get_clk_frequency_khz(info); - return 0; + switch (nr) { + case 0: + __raw_writel(0, MECR); + break; + case 1: + /* + * We have at least one socket, so set MECR:CIT + * (Card Is There) + */ + __raw_writel(MECR_CIT, MECR); + break; + case 2: + /* Set CIT and MECR:NOS (Number Of Sockets) */ + __raw_writel(MECR_CIT | MECR_NOS, MECR); + break; + } +} +EXPORT_SYMBOL_GPL(pxa_smemc_set_pcmcia_socket); + +void __iomem *pxa_smemc_get_mdrefr(void) +{ + return MDREFR; } -EXPORT_SYMBOL(get_clk_frequency_khz); /* * Intel PXA2xx internal register mapping. @@ -79,19 +99,15 @@ EXPORT_SYMBOL(get_clk_frequency_khz); */ static struct map_desc common_io_desc[] __initdata = { { /* Devs */ - .virtual = 0xf2000000, - .pfn = __phys_to_pfn(0x40000000), - .length = 0x02000000, - .type = MT_DEVICE - }, { /* UNCACHED_PHYS_0 */ - .virtual = 0xff000000, - .pfn = __phys_to_pfn(0x00000000), - .length = 0x00100000, + .virtual = (unsigned long)PERIPH_VIRT, + .pfn = __phys_to_pfn(PERIPH_PHYS), + .length = PERIPH_SIZE, .type = MT_DEVICE } }; void __init pxa_map_io(void) { + debug_ll_io_init(); iotable_init(ARRAY_AND_SIZE(common_io_desc)); } |