e7336083e6
Use the soc detection infrastructure for sama5 initialization. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
/*
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* Setup code for SAMA5
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*
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* Copyright (C) 2013 Atmel,
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* 2013 Ludovic Desroches <ludovic.desroches@atmel.com>
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*
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* Licensed under GPLv2 or later.
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*/
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/system_misc.h>
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#include <mach/hardware.h>
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#include "generic.h"
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#include "soc.h"
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static const struct at91_soc sama5_socs[] = {
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AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D31_EXID_MATCH,
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"sama5d31", "sama5d3"),
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AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D33_EXID_MATCH,
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"sama5d33", "sama5d3"),
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AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D34_EXID_MATCH,
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"sama5d34", "sama5d3"),
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AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D35_EXID_MATCH,
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"sama5d35", "sama5d3"),
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AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D36_EXID_MATCH,
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"sama5d36", "sama5d3"),
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AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D41_EXID_MATCH,
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"sama5d41", "sama5d4"),
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AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D42_EXID_MATCH,
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"sama5d42", "sama5d4"),
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AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D43_EXID_MATCH,
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"sama5d43", "sama5d4"),
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AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D44_EXID_MATCH,
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"sama5d44", "sama5d4"),
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{ /* sentinel */ },
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};
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static void __init sama5_dt_device_init(void)
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{
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struct soc_device *soc;
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struct device *soc_dev = NULL;
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soc = at91_soc_init(sama5_socs);
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if (soc != NULL)
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soc_dev = soc_device_to_device(soc);
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of_platform_populate(NULL, of_default_bus_match_table, NULL, soc_dev);
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at91sam9x5_pm_init();
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}
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static const char *sama5_dt_board_compat[] __initconst = {
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"atmel,sama5",
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NULL
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};
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DT_MACHINE_START(sama5_dt, "Atmel SAMA5")
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/* Maintainer: Atmel */
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.init_machine = sama5_dt_device_init,
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.dt_compat = sama5_dt_board_compat,
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MACHINE_END
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static struct map_desc at91_io_desc[] __initdata = {
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{
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.virtual = (unsigned long)AT91_ALT_IO_P2V(SAMA5D4_BASE_MPDDRC),
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.pfn = __phys_to_pfn(SAMA5D4_BASE_MPDDRC),
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.length = SZ_512,
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.type = MT_DEVICE,
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},
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{
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.virtual = (unsigned long)AT91_ALT_IO_P2V(SAMA5D4_BASE_PMC),
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.pfn = __phys_to_pfn(SAMA5D4_BASE_PMC),
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.length = SZ_512,
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.type = MT_DEVICE,
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},
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{ /* On sama5d4, we use USART3 as serial console */
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.virtual = (unsigned long)AT91_ALT_IO_P2V(SAMA5D4_BASE_USART3),
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.pfn = __phys_to_pfn(SAMA5D4_BASE_USART3),
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.length = SZ_256,
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.type = MT_DEVICE,
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},
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{ /* A bunch of peripheral with fine grained IO space */
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.virtual = (unsigned long)AT91_ALT_IO_P2V(SAMA5D4_BASE_SYS2),
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.pfn = __phys_to_pfn(SAMA5D4_BASE_SYS2),
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.length = SZ_2K,
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.type = MT_DEVICE,
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},
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};
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static void __init sama5_alt_map_io(void)
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{
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iotable_init(at91_io_desc, ARRAY_SIZE(at91_io_desc));
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}
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static const char *sama5_alt_dt_board_compat[] __initconst = {
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"atmel,sama5d4",
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NULL
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};
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DT_MACHINE_START(sama5_alt_dt, "Atmel SAMA5")
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/* Maintainer: Atmel */
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.map_io = sama5_alt_map_io,
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.init_machine = sama5_dt_device_init,
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.dt_compat = sama5_alt_dt_board_compat,
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.l2c_aux_mask = ~0UL,
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MACHINE_END
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