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ARM: CSR: mapping early DEBUG_LL uart
Signed-off-by: Barry Song <baohua.song@csr.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
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@ -3,3 +3,4 @@ obj-y += irq.o
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obj-y += clock.o
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obj-y += rstc.o
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obj-y += prima2.o
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obj-$(CONFIG_DEBUG_LL) += lluart.o
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@ -17,4 +17,10 @@ extern struct sys_timer sirfsoc_timer;
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extern void __init sirfsoc_of_irq_init(void);
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extern void __init sirfsoc_of_clk_init(void);
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#ifndef CONFIG_DEBUG_LL
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static inline void sirfsoc_map_lluart(void) {}
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#else
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extern void __init sirfsoc_map_lluart(void);
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#endif
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#endif
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25
arch/arm/mach-prima2/lluart.c
Normal file
25
arch/arm/mach-prima2/lluart.c
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@ -0,0 +1,25 @@
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/*
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* Static memory mapping for DEBUG_LL
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*
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* Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
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*
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* Licensed under GPLv2 or later.
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*/
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#include <linux/kernel.h>
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#include <asm/page.h>
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#include <asm/mach/map.h>
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#include <mach/map.h>
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#include <mach/uart.h>
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void __init sirfsoc_map_lluart(void)
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{
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struct map_desc sirfsoc_lluart_map = {
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.virtual = SIRFSOC_UART1_VA_BASE,
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.pfn = __phys_to_pfn(SIRFSOC_UART1_PA_BASE),
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.length = SIRFSOC_UART1_SIZE,
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.type = MT_DEVICE,
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};
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iotable_init(&sirfsoc_lluart_map, 1);
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}
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@ -33,6 +33,7 @@ MACHINE_START(PRIMA2_EVB, "prima2cb")
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/* Maintainer: Barry Song <baohua.song@csr.com> */
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.boot_params = 0x00000100,
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.init_early = sirfsoc_of_clk_init,
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.map_io = sirfsoc_map_lluart,
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.init_irq = sirfsoc_of_irq_init,
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.timer = &sirfsoc_timer,
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.init_machine = sirfsoc_mach_init,
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