xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARC: [plat-eznps]: Drop support for EZChip NPS platform

Browse Source 
NPS customers are no longer doing active development, as evident from
rand config build failures reported in recent times, so drop support
for NPS platform.

Tested-by: kernel test robot <lkp@intel.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta
2020-08-25 18:37:17 -07:00
parent 549738f15d
commit dd7c7ab01a
29 changed files with 5 additions and 1353 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
arch/arc/kernel/ctx_sw.c
View File

@@ -14,9 +14,6 @@
#include <asm/asm-offsets.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
#ifdef CONFIG_ARC_PLAT_EZNPS
#include <plat/ctop.h>
#endif
#define KSP_WORD_OFF ((TASK_THREAD + THREAD_KSP) / 4)
@@ -67,17 +64,10 @@ __switch_to(struct task_struct *prev_task, struct task_struct *next_task)
*/
#ifndef CONFIG_SMP
"st %2, [@_current_task] \n\t"
#else
#ifdef CONFIG_ARC_PLAT_EZNPS
"lr r24, [%4] \n\t"
#ifndef CONFIG_EZNPS_MTM_EXT
"lsr r24, r24, 4 \n\t"
#endif
#else
"lr r24, [identity] \n\t"
"lsr r24, r24, 8 \n\t"
"bmsk r24, r24, 7 \n\t"
#endif
"add2 r24, @_current_task, r24 \n\t"
"st %2, [r24] \n\t"
#endif
@@ -115,9 +105,6 @@ __switch_to(struct task_struct *prev_task, struct task_struct *next_task)
: "=r"(tmp)
: "n"(KSP_WORD_OFF), "r"(next), "r"(prev)
#ifdef CONFIG_ARC_PLAT_EZNPS
, "i"(CTOP_AUX_LOGIC_GLOBAL_ID)
#endif
: "blink"
);

2
arch/arc/kernel/devtree.c
View File

@@ -29,8 +29,6 @@ static void __init arc_set_early_base_baud(unsigned long dt_root)
else if (of_flat_dt_is_compatible(dt_root, "snps,arc-sdp") ||
of_flat_dt_is_compatible(dt_root, "snps,hsdk"))
arc_base_baud = 33333333; /* Fixed 33MHz clk (AXS10x & HSDK) */
else if (of_flat_dt_is_compatible(dt_root, "ezchip,arc-nps"))
arc_base_baud = 800000000; /* Fixed 800MHz clk (NPS) */
else
arc_base_baud = 50000000; /* Fixed default 50MHz */
}

15
arch/arc/kernel/process.c
View File

@@ -116,17 +116,6 @@ void arch_cpu_idle(void)
:"I"(arg)); /* can't be "r" has to be embedded const */
}
#elif defined(CONFIG_EZNPS_MTM_EXT) /* ARC700 variant in NPS */
void arch_cpu_idle(void)
{
/* only the calling HW thread needs to sleep */
__asm__ __volatile__(
".word %0 \n"
:
:"i"(CTOP_INST_HWSCHD_WFT_IE12));
}
#else /* ARC700 */
void arch_cpu_idle(void)
@@ -278,10 +267,6 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp)
*/
regs->status32 = STATUS_U_MASK | STATUS_L_MASK | ISA_INIT_STATUS_BITS;
#ifdef CONFIG_EZNPS_MTM_EXT
regs->eflags = 0;
#endif
fpu_init_task(regs);
/* bogus seed values for debugging */