From 14e54cc391e22bd564993583464577e4e34a2701 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Sat, 28 Jan 2006 20:54:50 +0000 Subject: [ARM] 3289/1: Enable the LCD support for Integrator/CP Patch from Catalin Marinas The LCD displays were no longer working with Integrator/CP after some changes to the setup code. This patch re-enables them. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mach-integrator/integrator_cp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-integrator') diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index 31820170f30..a0724f2b24c 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -469,7 +469,9 @@ static void cp_clcd_enable(struct clcd_fb *fb) if (fb->fb.var.bits_per_pixel <= 8) val = CM_CTRL_LCDMUXSEL_VGA_8421BPP; else if (fb->fb.var.bits_per_pixel <= 16) - val = CM_CTRL_LCDMUXSEL_VGA_16BPP; + val = CM_CTRL_LCDMUXSEL_VGA_16BPP + | CM_CTRL_LCDEN0 | CM_CTRL_LCDEN1 + | CM_CTRL_STATIC1 | CM_CTRL_STATIC2; else val = 0; /* no idea for this, don't trust the docs */ -- cgit v1.2.3 From 7bbb79403163e047c6e333ff169db34e3c969e65 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 16 Feb 2006 11:08:09 +0000 Subject: [ARM] Fix SMP initialisation oops A change to the SMP initialisation caused the following oops: CPU1: Booted secondary processor CPU1: D VIPT write-back cache CPU1: I cache: 32768 bytes, associativity 4, 32 byte lines, 256 sets CPU1: D cache: 32768 bytes, associativity 4, 32 byte lines, 256 sets <7>Calibrating delay loop... 83.14 BogoMIPS (lpj=415744) <1>Unable to handle kernel NULL pointer dereference at virtual address 0000001c ... PC is at enqueue_task+0x1c/0x64 LR is at activate_task+0xcc/0xe4 SMP initialisation now requires cpu_possible_map to be initialised in setup_arch(). Move this from smp_prepare_cpus() to smp_init_cpus() and call it from our setup_arch() if CONFIG_SMP is enabled. Signed-off-by: Russell King --- arch/arm/mach-integrator/platsmp.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'arch/arm/mach-integrator') diff --git a/arch/arm/mach-integrator/platsmp.c b/arch/arm/mach-integrator/platsmp.c index ea10bd8c972..1bc8534ef0c 100644 --- a/arch/arm/mach-integrator/platsmp.c +++ b/arch/arm/mach-integrator/platsmp.c @@ -140,6 +140,18 @@ static void __init poke_milo(void) mb(); } +/* + * Initialise the CPU possible map early - this describes the CPUs + * which may be present or become present in the system. + */ +void __init smp_init_cpus(void) +{ + unsigned int i, ncores = get_core_count(); + + for (i = 0; i < ncores; i++) + cpu_set(i, cpu_possible_map); +} + void __init smp_prepare_cpus(unsigned int max_cpus) { unsigned int ncores = get_core_count(); @@ -176,14 +188,11 @@ void __init smp_prepare_cpus(unsigned int max_cpus) max_cpus = ncores; /* - * Initialise the possible/present maps. - * cpu_possible_map describes the set of CPUs which may be present - * cpu_present_map describes the set of CPUs populated + * Initialise the present map, which describes the set of CPUs + * actually populated at the present time. */ - for (i = 0; i < max_cpus; i++) { - cpu_set(i, cpu_possible_map); + for (i = 0; i < max_cpus; i++) cpu_set(i, cpu_present_map); - } /* * Do we need any more CPUs? If so, then let them know where -- cgit v1.2.3