diff options
| author | rick <rick@andestech.com> | 2017-05-18 09:37:53 +0300 |
|---|---|---|
| committer | Andes <uboot@andestech.com> | 2017-05-22 09:05:46 +0300 |
| commit | b841b6e94662b3b21a56d6ecaab64dcdfb0d311c (patch) | |
| tree | 92847f53ffaeb104754e2940b32b981314627750 /arch/nds32/cpu/n1213/ag101 | |
| parent | f5076f869855045e527de7f1367c65f55a2b1448 (diff) | |
| download | u-boot-b841b6e94662b3b21a56d6ecaab64dcdfb0d311c.tar.xz | |
nds32: Support AE3XX platform.
Support Andestech AE3xx platform: serial, timer device tree flow.
Signed-off-by: rick <rick@andestech.com>
Diffstat (limited to 'arch/nds32/cpu/n1213/ag101')
| -rw-r--r-- | arch/nds32/cpu/n1213/ag101/Makefile | 3 | ||||
| -rw-r--r-- | arch/nds32/cpu/n1213/ag101/cpu.c | 8 | ||||
| -rw-r--r-- | arch/nds32/cpu/n1213/ag101/lowlevel_init.S | 59 |
3 files changed, 23 insertions, 47 deletions
diff --git a/arch/nds32/cpu/n1213/ag101/Makefile b/arch/nds32/cpu/n1213/ag101/Makefile index c21ce02828..07fa9429a9 100644 --- a/arch/nds32/cpu/n1213/ag101/Makefile +++ b/arch/nds32/cpu/n1213/ag101/Makefile @@ -11,10 +11,7 @@ # obj-y := cpu.o timer.o - -ifndef CONFIG_SKIP_LOWLEVEL_INIT obj-y += lowlevel_init.o -endif ifndef CONFIG_SKIP_TRUNOFF_WATCHDOG obj-y += watchdog.o diff --git a/arch/nds32/cpu/n1213/ag101/cpu.c b/arch/nds32/cpu/n1213/ag101/cpu.c index 31d72712f3..9da0b31b4b 100644 --- a/arch/nds32/cpu/n1213/ag101/cpu.c +++ b/arch/nds32/cpu/n1213/ag101/cpu.c @@ -31,16 +31,10 @@ int cleanup_before_linux(void) { disable_interrupts(); -#ifdef CONFIG_MMU /* turn off I/D-cache */ + cache_flush(); icache_disable(); dcache_disable(); - - /* flush I/D-cache */ - invalidate_icac(); - invalidate_dcac(); -#endif - return 0; } diff --git a/arch/nds32/cpu/n1213/ag101/lowlevel_init.S b/arch/nds32/cpu/n1213/ag101/lowlevel_init.S index abdd340479..452d814042 100644 --- a/arch/nds32/cpu/n1213/ag101/lowlevel_init.S +++ b/arch/nds32/cpu/n1213/ag101/lowlevel_init.S @@ -86,25 +86,7 @@ bnez $r1, 1b .endm -#ifndef CONFIG_SKIP_LOWLEVEL_INIT -.globl lowlevel_init -lowlevel_init: - move $r10, $lp - - led 0x0 - jal mem_init - - led 0x10 - jal remap - -#if (defined(NDS32_EXT_FPU_DP) || defined(NDS32_EXT_FPU_SP)) - led 0x1f - jal enable_fpu -#endif - - led 0x20 - ret $r10 - +.globl mem_init mem_init: move $r11, $lp @@ -124,9 +106,7 @@ mem_init: lwi $r1, [$r0+#0x00] ori $r1, $r1, 0x8f0 xori $r1, $r1, 0x8f0 - /* - * check board - */ + /* check board */ li $r3, CONFIG_FTPMU010_BASE + BOARD_ID_REG lwi $r3, [$r3] li $r4, BOARD_ID_FAMILY_MASK @@ -134,29 +114,21 @@ mem_init: li $r4, BOARD_ID_FAMILY_K7 xor $r4, $r3, $r4 beqz $r4, use_flash_16bit_boot - /* - * 32-bit mode - */ + /* 32-bit mode */ use_flash_32bit_boot: ori $r1, $r1, 0x50 li $r2, 0x00151151 j sdram_b0_cr - /* - * 16-bit mode - */ + /* 16-bit mode */ use_flash_16bit_boot: ori $r1, $r1, 0x60 li $r2, 0x00153153 - /* - * SRAM bank0 config - */ + /* SRAM bank0 config */ sdram_b0_cr: swi $r1, [$r0+#0x00] swi $r2, [$r0+#0x04] - /* - * config AHB Controller - */ + /* config AHB Controller */ led 0x02 /* @@ -192,6 +164,21 @@ sdram_b0_cr: move $lp, $r11 ret + +#ifndef CONFIG_SKIP_LOWLEVEL_INIT + +.globl lowlevel_init +lowlevel_init: + move $r10, $lp + led 0x10 + jal remap +#if (defined(NDS32_EXT_FPU_DP) || defined(NDS32_EXT_FPU_SP)) + led 0x1f + jal enable_fpu +#endif + led 0x20 + ret $r10 + remap: move $r11, $lp #ifdef __NDS32_N1213_43U1H__ /* NDS32 V0 ISA - AG101 Only */ @@ -203,9 +190,7 @@ relo_base: mfusr $r0, $pc #endif /* __NDS32_N1213_43U1H__ */ - /* - * Remapping - */ + /* Remapping */ led 0x1a write32 SDMC_B0_BSR_A, SDMC_B0_BSR_D ! 0x00001800 write32 SDMC_B1_BSR_A, SDMC_B1_BSR_D ! 0x00001880 |