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Diffstat (limited to 'arch/m32r/kernel/entry.S')
-rw-r--r--arch/m32r/kernel/entry.S241
1 files changed, 39 insertions, 202 deletions
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index a2c472c0549f..07d95a4f51a2 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -290,16 +290,12 @@ syscall_badsys:
*/
ENTRY(ei_handler)
#if defined(CONFIG_CHIP_M32700)
- SWITCH_TO_KERNEL_STACK
; WORKAROUND: force to clear SM bit and use the kernel stack (SPI).
+ SWITCH_TO_KERNEL_STACK
#endif
SAVE_ALL
mv r1, sp ; arg1(regs)
-#if defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_XNUX2) \
- || defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_M32102) \
- || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
-
-; GET_ICU_STATUS;
+ ; GET_ICU_STATUS;
seth r0, #shigh(M32R_ICU_ISTS_ADDR)
ld r0, @(low(M32R_ICU_ISTS_ADDR),r0)
push r0
@@ -314,10 +310,15 @@ ENTRY(ei_handler)
;; IRQ exist check
#if defined(CONFIG_CHIP_M32700)
/* WORKAROUND: IMASK bug M32700-TS1, TS2 chip. */
- beqz r0, 3f ; if (!irq_num) goto exit
-#else
+ bnez r0, 0f
+ ld24 r14, #0x00070000
+ seth r0, #shigh(M32R_ICU_IMASK_ADDR)
+ st r14, @(low(M32R_ICU_IMASK_ADDR),r0)
+ bra 1f
+ .fillinsn
+0:
+#endif /* CONFIG_CHIP_M32700 */
beqz r0, 1f ; if (!irq_num) goto exit
-#endif /* WORKAROUND */
;; IPI check
cmpi r0, #(M32R_IRQ_IPI0<<2) ; ISN < IPI0 check
bc 2f
@@ -333,218 +334,54 @@ ENTRY(ei_handler)
1:
addi sp, #4
bra ret_to_intr
-#if defined(CONFIG_CHIP_M32700)
- /* WORKAROUND: IMASK bug M32700-TS1, TS2 chip. */
- .fillinsn
-3:
- ld24 r14, #0x00070000
- seth r0, #shigh(M32R_ICU_IMASK_ADDR)
- st r14, @(low(M32R_ICU_IMASK_ADDR), r0)
- addi sp, #4
- bra ret_to_intr
-#endif /* WORKAROUND */
- ;; do_IRQ
.fillinsn
2:
srli r0, #2
-#if defined(CONFIG_PLAT_USRV)
- add3 r2, r0, #-(M32R_IRQ_INT1) ; INT1# interrupt
- bnez r2, 9f
- ; read ICU status register of PLD
- seth r0, #high(PLD_ICUISTS)
- or3 r0, r0, #low(PLD_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- addi r0, #(M32700UT_PLD_IRQ_BASE)
- .fillinsn
-9:
-#elif defined(CONFIG_PLAT_M32700UT)
- add3 r2, r0, #-(M32R_IRQ_INT1) ; INT1# interrupt
- bnez r2, check_int0
- ; read ICU status register of PLD
- seth r0, #high(PLD_ICUISTS)
- or3 r0, r0, #low(PLD_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- addi r0, #(M32700UT_PLD_IRQ_BASE)
- bra check_end
- .fillinsn
-check_int0:
- add3 r2, r0, #-(M32R_IRQ_INT0) ; INT0# interrupt
- bnez r2, check_int2
- ; read ICU status of LAN-board
- seth r0, #high(M32700UT_LAN_ICUISTS)
- or3 r0, r0, #low(M32700UT_LAN_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- add3 r0, r0, #(M32700UT_LAN_PLD_IRQ_BASE)
- bra check_end
- .fillinsn
-check_int2:
- add3 r2, r0, #-(M32R_IRQ_INT2) ; INT2# interrupt
- bnez r2, check_end
- ; read ICU status of LCD-board
- seth r0, #high(M32700UT_LCD_ICUISTS)
- or3 r0, r0, #low(M32700UT_LCD_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- add3 r0, r0, #(M32700UT_LCD_PLD_IRQ_BASE)
- bra check_end
- .fillinsn
-check_end:
-#elif defined(CONFIG_PLAT_OPSPUT)
- add3 r2, r0, #-(M32R_IRQ_INT1) ; INT1# interrupt
- bnez r2, check_int0
- ; read ICU status register of PLD
- seth r0, #high(PLD_ICUISTS)
- or3 r0, r0, #low(PLD_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- addi r0, #(OPSPUT_PLD_IRQ_BASE)
- bra check_end
- .fillinsn
-check_int0:
- add3 r2, r0, #-(M32R_IRQ_INT0) ; INT0# interrupt
- bnez r2, check_int2
- ; read ICU status of LAN-board
- seth r0, #high(OPSPUT_LAN_ICUISTS)
- or3 r0, r0, #low(OPSPUT_LAN_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- add3 r0, r0, #(OPSPUT_LAN_PLD_IRQ_BASE)
- bra check_end
- .fillinsn
-check_int2:
- add3 r2, r0, #-(M32R_IRQ_INT2) ; INT2# interrupt
- bnez r2, check_end
- ; read ICU status of LCD-board
- seth r0, #high(OPSPUT_LCD_ICUISTS)
- or3 r0, r0, #low(OPSPUT_LCD_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- add3 r0, r0, #(OPSPUT_LCD_PLD_IRQ_BASE)
- bra check_end
- .fillinsn
-check_end:
-#endif /* CONFIG_PLAT_OPSPUT */
- bl do_IRQ ; r0(irq), r1(regs)
-#else /* not CONFIG_SMP */
+#else /* not CONFIG_SMP */
srli r0, #22 ; r0(irq)
-#if defined(CONFIG_PLAT_USRV)
+#endif /* not CONFIG_SMP */
+
+#if defined(CONFIG_PLAT_HAS_INT1ICU)
add3 r2, r0, #-(M32R_IRQ_INT1) ; INT1# interrupt
- bnez r2, 1f
- ; read ICU status register of PLD
- seth r0, #high(PLD_ICUISTS)
- or3 r0, r0, #low(PLD_ICUISTS)
- lduh r0, @r0
+ bnez r2, 3f
+ seth r0, #shigh(M32R_INT1ICU_ISTS)
+ lduh r0, @(low(M32R_INT1ICU_ISTS),r0) ; bit10-6 : ISN
slli r0, #21
srli r0, #27 ; ISN
- addi r0, #(M32700UT_PLD_IRQ_BASE)
- .fillinsn
-1:
-#elif defined(CONFIG_PLAT_M32700UT)
- add3 r2, r0, #-(M32R_IRQ_INT1) ; INT1# interrupt
- bnez r2, check_int0
- ; read ICU status register of PLD
- seth r0, #high(PLD_ICUISTS)
- or3 r0, r0, #low(PLD_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- addi r0, #(M32700UT_PLD_IRQ_BASE)
+ addi r0, #(M32R_INT1ICU_IRQ_BASE)
bra check_end
.fillinsn
-check_int0:
- add3 r2, r0, #-(M32R_IRQ_INT0) ; INT0# interrupt
- bnez r2, check_int2
- ; read ICU status of LAN-board
- seth r0, #high(M32700UT_LAN_ICUISTS)
- or3 r0, r0, #low(M32700UT_LAN_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- add3 r0, r0, #(M32700UT_LAN_PLD_IRQ_BASE)
- bra check_end
- .fillinsn
-check_int2:
- add3 r2, r0, #-(M32R_IRQ_INT2) ; INT2# interrupt
- bnez r2, check_end
- ; read ICU status of LCD-board
- seth r0, #high(M32700UT_LCD_ICUISTS)
- or3 r0, r0, #low(M32700UT_LCD_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- add3 r0, r0, #(M32700UT_LCD_PLD_IRQ_BASE)
- bra check_end
- .fillinsn
-check_end:
-#elif defined(CONFIG_PLAT_OPSPUT)
- add3 r2, r0, #-(M32R_IRQ_INT1) ; INT1# interrupt
- bnez r2, check_int0
- ; read ICU status register of PLD
- seth r0, #high(PLD_ICUISTS)
- or3 r0, r0, #low(PLD_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- addi r0, #(OPSPUT_PLD_IRQ_BASE)
- bra check_end
- .fillinsn
-check_int0:
- add3 r2, r0, #-(M32R_IRQ_INT0) ; INT0# interrupt
- bnez r2, check_int2
- ; read ICU status of LAN-board
- seth r0, #high(OPSPUT_LAN_ICUISTS)
- or3 r0, r0, #low(OPSPUT_LAN_ICUISTS)
- lduh r0, @r0
- slli r0, #21
- srli r0, #27 ; ISN
- add3 r0, r0, #(OPSPUT_LAN_PLD_IRQ_BASE)
- bra check_end
- .fillinsn
-check_int2:
- add3 r2, r0, #-(M32R_IRQ_INT2) ; INT2# interrupt
- bnez r2, check_end
- ; read ICU status of LCD-board
- seth r0, #high(OPSPUT_LCD_ICUISTS)
- or3 r0, r0, #low(OPSPUT_LCD_ICUISTS)
- lduh r0, @r0
+3:
+#endif /* CONFIG_PLAT_HAS_INT1ICU */
+#if defined(CONFIG_PLAT_HAS_INT0ICU)
+ add3 r2, r0, #-(M32R_IRQ_INT0) ; INT0# interrupt
+ bnez r2, 4f
+ seth r0, #shigh(M32R_INT0ICU_ISTS)
+ lduh r0, @(low(M32R_INT0ICU_ISTS),r0) ; bit10-6 : ISN
slli r0, #21
- srli r0, #27 ; ISN
- add3 r0, r0, #(OPSPUT_LCD_PLD_IRQ_BASE)
+ srli r0, #27 ; ISN
+ addi r0, #(M32R_INT0ICU_IRQ_BASE)
bra check_end
.fillinsn
-check_end:
-#elif defined(CONFIG_PLAT_M32104UT)
- add3 r2, r0, #-(M32R_IRQ_INT1) ; INT1# interrupt
- bnez r2, check_end
- ; read ICU status register of PLD
- seth r0, #high(PLD_ICUISTS)
- or3 r0, r0, #low(PLD_ICUISTS)
- lduh r0, @r0
+4:
+#endif /* CONFIG_PLAT_HAS_INT0ICU */
+#if defined(CONFIG_PLAT_HAS_INT2ICU)
+ add3 r2, r0, #-(M32R_IRQ_INT2) ; INT2# interrupt
+ bnez r2, 5f
+ seth r0, #shigh(M32R_INT2ICU_ISTS)
+ lduh r0, @(low(M32R_INT2ICU_ISTS),r0) ; bit10-6 : ISN
slli r0, #21
- srli r0, #27 ; ISN
- addi r0, #(M32104UT_PLD_IRQ_BASE)
- bra check_end
+ srli r0, #27 ; ISN
+ addi r0, #(M32R_INT2ICU_IRQ_BASE)
+ ; bra check_end
.fillinsn
+5:
+#endif /* CONFIG_PLAT_HAS_INT2ICU */
check_end:
-#endif /* CONFIG_PLAT_M32104UT */
bl do_IRQ
-#endif /* CONFIG_SMP */
pop r14
seth r0, #shigh(M32R_ICU_IMASK_ADDR)
st r14, @(low(M32R_ICU_IMASK_ADDR),r0)
-#else
-#error no chip configuration
-#endif
ret_to_intr:
bra ret_from_intr
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 21:46:05 +0100