From: Arnd Bergmann arnd@arndb.de
commit 980a637d11fe8dfc734f508a422185c2de55e669 upstream.
While compile-testing randconfig builds for the upcoming boardfile removal, I noticed that an earlier patch of mine was completely broken, and the introduction of CONFIG_ARCH_OMAP1_ANY only replaced one set of build failures with another one, now resulting in link failures like
ld: drivers/video/fbdev/omap/omapfb_main.o: in function `omapfb_do_probe': drivers/video/fbdev/omap/omapfb_main.c:1703: undefined reference to `omap_set_dma_priority' ld: drivers/dma/ti/omap-dma.o: in function `omap_dma_free_chan_resources': drivers/dma/ti/omap-dma.c:777: undefined reference to `omap_free_dma' drivers/dma/ti/omap-dma.c:1685: undefined reference to `omap_get_plat_info' ld: drivers/usb/gadget/udc/omap_udc.o: in function `next_in_dma': drivers/usb/gadget/udc/omap_udc.c:820: undefined reference to `omap_get_dma_active_status'
I tried reworking it, but the resulting patch ended up much bigger than simply avoiding the original problem of unused-function warnings like
arch/arm/mach-omap1/mcbsp.c:76:30: error: unused variable 'omap1_mcbsp_ops' [-Werror,-Wunused-variable]
As a result, revert the previous fix, and rearrange the code that produces warnings to hide them. For mcbsp, the #ifdef check can simply be removed as the cpu_is_omapxxx() checks already achieve the same result, while in the io.c the easiest solution appears to be to merge the common map bits into each soc specific portion. This gets cleaned in a nicer way after omap7xx support gets dropped, as the remaining SoCs all have the exact same I/O map.
Fixes: 615dce5bf736 ("ARM: omap1: fix build with no SoC selected") Cc: stable@vger.kernel.org Acked-by: Aaro Koskinen aaro.koskinen@iki.fi Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-omap1/Kconfig | 5 +---- arch/arm/mach-omap1/Makefile | 4 ---- arch/arm/mach-omap1/io.c | 32 +++++++++++++++----------------- arch/arm/mach-omap1/mcbsp.c | 21 --------------------- arch/arm/mach-omap1/pm.h | 7 ------- include/linux/soc/ti/omap1-io.h | 4 ++-- 6 files changed, 18 insertions(+), 55 deletions(-)
--- a/arch/arm/mach-omap1/Kconfig +++ b/arch/arm/mach-omap1/Kconfig @@ -4,6 +4,7 @@ menuconfig ARCH_OMAP1 depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 depends on CPU_LITTLE_ENDIAN depends on ATAGS + select ARCH_OMAP select ARCH_HAS_HOLES_MEMORYMODEL select ARCH_OMAP select CLKSRC_MMIO @@ -45,10 +46,6 @@ config ARCH_OMAP16XX select CPU_ARM926T select OMAP_DM_TIMER
-config ARCH_OMAP1_ANY - select ARCH_OMAP - def_bool ARCH_OMAP730 || ARCH_OMAP850 || ARCH_OMAP15XX || ARCH_OMAP16XX - config ARCH_OMAP bool
--- a/arch/arm/mach-omap1/Makefile +++ b/arch/arm/mach-omap1/Makefile @@ -3,8 +3,6 @@ # Makefile for the linux kernel. #
-ifdef CONFIG_ARCH_OMAP1_ANY - # Common support obj-y := io.o id.o sram-init.o sram.o time.o irq.o mux.o flash.o \ serial.o devices.o dma.o omap-dma.o fb.o @@ -59,5 +57,3 @@ obj-$(CONFIG_ARCH_OMAP730) += gpio7xx.o obj-$(CONFIG_ARCH_OMAP850) += gpio7xx.o obj-$(CONFIG_ARCH_OMAP15XX) += gpio15xx.o obj-$(CONFIG_ARCH_OMAP16XX) += gpio16xx.o - -endif --- a/arch/arm/mach-omap1/io.c +++ b/arch/arm/mach-omap1/io.c @@ -22,17 +22,14 @@ * The machine specific code may provide the extra mapping besides the * default mapping provided here. */ -static struct map_desc omap_io_desc[] __initdata = { +#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850) +static struct map_desc omap7xx_io_desc[] __initdata = { { .virtual = OMAP1_IO_VIRT, .pfn = __phys_to_pfn(OMAP1_IO_PHYS), .length = OMAP1_IO_SIZE, .type = MT_DEVICE - } -}; - -#if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850) -static struct map_desc omap7xx_io_desc[] __initdata = { + }, { .virtual = OMAP7XX_DSP_BASE, .pfn = __phys_to_pfn(OMAP7XX_DSP_START), @@ -50,6 +47,12 @@ static struct map_desc omap7xx_io_desc[] #ifdef CONFIG_ARCH_OMAP15XX static struct map_desc omap1510_io_desc[] __initdata = { { + .virtual = OMAP1_IO_VIRT, + .pfn = __phys_to_pfn(OMAP1_IO_PHYS), + .length = OMAP1_IO_SIZE, + .type = MT_DEVICE + }, + { .virtual = OMAP1510_DSP_BASE, .pfn = __phys_to_pfn(OMAP1510_DSP_START), .length = OMAP1510_DSP_SIZE, @@ -66,6 +69,12 @@ static struct map_desc omap1510_io_desc[ #if defined(CONFIG_ARCH_OMAP16XX) static struct map_desc omap16xx_io_desc[] __initdata = { { + .virtual = OMAP1_IO_VIRT, + .pfn = __phys_to_pfn(OMAP1_IO_PHYS), + .length = OMAP1_IO_SIZE, + .type = MT_DEVICE + }, + { .virtual = OMAP16XX_DSP_BASE, .pfn = __phys_to_pfn(OMAP16XX_DSP_START), .length = OMAP16XX_DSP_SIZE, @@ -79,18 +88,9 @@ static struct map_desc omap16xx_io_desc[ }; #endif
-/* - * Maps common IO regions for omap1 - */ -static void __init omap1_map_common_io(void) -{ - iotable_init(omap_io_desc, ARRAY_SIZE(omap_io_desc)); -} - #if defined (CONFIG_ARCH_OMAP730) || defined (CONFIG_ARCH_OMAP850) void __init omap7xx_map_io(void) { - omap1_map_common_io(); iotable_init(omap7xx_io_desc, ARRAY_SIZE(omap7xx_io_desc)); } #endif @@ -98,7 +98,6 @@ void __init omap7xx_map_io(void) #ifdef CONFIG_ARCH_OMAP15XX void __init omap15xx_map_io(void) { - omap1_map_common_io(); iotable_init(omap1510_io_desc, ARRAY_SIZE(omap1510_io_desc)); } #endif @@ -106,7 +105,6 @@ void __init omap15xx_map_io(void) #if defined(CONFIG_ARCH_OMAP16XX) void __init omap16xx_map_io(void) { - omap1_map_common_io(); iotable_init(omap16xx_io_desc, ARRAY_SIZE(omap16xx_io_desc)); } #endif --- a/arch/arm/mach-omap1/mcbsp.c +++ b/arch/arm/mach-omap1/mcbsp.c @@ -89,7 +89,6 @@ static struct omap_mcbsp_ops omap1_mcbsp #define OMAP1610_MCBSP2_BASE 0xfffb1000 #define OMAP1610_MCBSP3_BASE 0xe1017000
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) struct resource omap7xx_mcbsp_res[][6] = { { { @@ -159,14 +158,7 @@ static struct omap_mcbsp_platform_data o }; #define OMAP7XX_MCBSP_RES_SZ ARRAY_SIZE(omap7xx_mcbsp_res[1]) #define OMAP7XX_MCBSP_COUNT ARRAY_SIZE(omap7xx_mcbsp_res) -#else -#define omap7xx_mcbsp_res_0 NULL -#define omap7xx_mcbsp_pdata NULL -#define OMAP7XX_MCBSP_RES_SZ 0 -#define OMAP7XX_MCBSP_COUNT 0 -#endif
-#ifdef CONFIG_ARCH_OMAP15XX struct resource omap15xx_mcbsp_res[][6] = { { { @@ -266,14 +258,7 @@ static struct omap_mcbsp_platform_data o }; #define OMAP15XX_MCBSP_RES_SZ ARRAY_SIZE(omap15xx_mcbsp_res[1]) #define OMAP15XX_MCBSP_COUNT ARRAY_SIZE(omap15xx_mcbsp_res) -#else -#define omap15xx_mcbsp_res_0 NULL -#define omap15xx_mcbsp_pdata NULL -#define OMAP15XX_MCBSP_RES_SZ 0 -#define OMAP15XX_MCBSP_COUNT 0 -#endif
-#ifdef CONFIG_ARCH_OMAP16XX struct resource omap16xx_mcbsp_res[][6] = { { { @@ -373,12 +358,6 @@ static struct omap_mcbsp_platform_data o }; #define OMAP16XX_MCBSP_RES_SZ ARRAY_SIZE(omap16xx_mcbsp_res[1]) #define OMAP16XX_MCBSP_COUNT ARRAY_SIZE(omap16xx_mcbsp_res) -#else -#define omap16xx_mcbsp_res_0 NULL -#define omap16xx_mcbsp_pdata NULL -#define OMAP16XX_MCBSP_RES_SZ 0 -#define OMAP16XX_MCBSP_COUNT 0 -#endif
static void omap_mcbsp_register_board_cfg(struct resource *res, int res_count, struct omap_mcbsp_platform_data *config, int size) --- a/arch/arm/mach-omap1/pm.h +++ b/arch/arm/mach-omap1/pm.h @@ -106,13 +106,6 @@ #define OMAP7XX_IDLECT3 0xfffece24 #define OMAP7XX_IDLE_LOOP_REQUEST 0x0C00
-#if !defined(CONFIG_ARCH_OMAP730) && \ - !defined(CONFIG_ARCH_OMAP850) && \ - !defined(CONFIG_ARCH_OMAP15XX) && \ - !defined(CONFIG_ARCH_OMAP16XX) -#warning "Power management for this processor not implemented yet" -#endif - #ifndef __ASSEMBLER__
#include <linux/clk.h> --- a/include/linux/soc/ti/omap1-io.h +++ b/include/linux/soc/ti/omap1-io.h @@ -5,7 +5,7 @@ #ifndef __ASSEMBLER__ #include <linux/types.h>
-#ifdef CONFIG_ARCH_OMAP1_ANY +#ifdef CONFIG_ARCH_OMAP1 /* * NOTE: Please use ioremap + __raw_read/write where possible instead of these */ @@ -15,7 +15,7 @@ extern u32 omap_readl(u32 pa); extern void omap_writeb(u8 v, u32 pa); extern void omap_writew(u16 v, u32 pa); extern void omap_writel(u32 v, u32 pa); -#else +#elif defined(CONFIG_COMPILE_TEST) static inline u8 omap_readb(u32 pa) { return 0; } static inline u16 omap_readw(u32 pa) { return 0; } static inline u32 omap_readl(u32 pa) { return 0; }