From eb9b9b56eed280e65a9e194aaeb50a5a75111859 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 28 May 2009 11:51:51 +0000 Subject: sh: boot word / mode pin support V2 Add mode pin support for the SuperH architecture V2. With this patch applied the board code can add their own function to export the cpu mode pin configuration. In most cases this will be a constant bitmap, but boards that allow reading this from a register can instead read out the pin state from hardware. The code warns if a pin is tested but no board specific mode pin function has been provided. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/include/asm/machvec.h | 1 + arch/sh/include/asm/processor.h | 4 ++++ 2 files changed, 5 insertions(+) (limited to 'arch/sh/include') diff --git a/arch/sh/include/asm/machvec.h b/arch/sh/include/asm/machvec.h index 73d6d16fa06b..84dd37761f56 100644 --- a/arch/sh/include/asm/machvec.h +++ b/arch/sh/include/asm/machvec.h @@ -48,6 +48,7 @@ struct sh_machine_vector { void (*mv_ioport_unmap)(void __iomem *); int (*mv_clk_init)(void); + int (*mv_mode_pins)(void); }; extern struct sh_machine_vector sh_mv; diff --git a/arch/sh/include/asm/processor.h b/arch/sh/include/asm/processor.h index 005c962c8b1c..fb67482e47eb 100644 --- a/arch/sh/include/asm/processor.h +++ b/arch/sh/include/asm/processor.h @@ -94,6 +94,10 @@ extern struct pt_regs fake_swapper_regs; const char *get_cpu_subtype(struct sh_cpuinfo *c); extern const struct seq_operations cpuinfo_op; +/* processor boot mode configuration */ +int generic_mode_pins(void); +int test_mode_pin(int pin); + #ifdef CONFIG_VSYSCALL int vsyscall_init(void); #else -- cgit v1.2.3