leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

nds32: add support for leopard and orca board boot flow auto detect

Browse Source 
hardware difference between leopard and orca as below:

flash setting     leoaprd     orca
bank size         32MB        64MB
bus width         32-bits     16-bits

Signed-off-by: rick <rick@andestech.com>
Signed-off-by: Kuan-Yu Kuo <ken.kuoky@gmail.com>
This commit is contained in:
rick 2014-01-24 17:14:28 +08:00 committed by Kuan-Yu Kuo
parent 0876703cf2
commit f889cc81c1
2 changed files with 85 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/nds32/cpu/n1213/ag101/asm-offsets.c
View File

@ -21,6 +21,7 @@ int main(void)
#endif
BLANK();
#ifdef CONFIG_FTAHBC020S
OFFSET(FTAHBC020S_SLAVE_BSR_4, ftahbc02s, s_bsr[4]);
OFFSET(FTAHBC020S_SLAVE_BSR_6, ftahbc02s, s_bsr[6]);
OFFSET(FTAHBC020S_CR, ftahbc02s, cr);
#endif

88
arch/nds32/cpu/n1213/ag101/lowlevel_init.S
View File

@ -32,6 +32,15 @@
#define SDMC_B0_BSR_D CONFIG_SYS_FTSDMC021_BANK0_BSR
#define SDMC_B1_BSR_D CONFIG_SYS_FTSDMC021_BANK1_BSR
/*
* for Orca and Emerald
*/
#define BOARD_ID_REG 0x104
#define BOARD_ID_FAMILY_MASK 0xfff000
#define BOARD_ID_FAMILY_V5 0x556000
#define BOARD_ID_FAMILY_K7 0x74b000
/*
* parameters for the static memory controller
*/
@ -47,6 +56,10 @@
#define AHBC_CR_A (CONFIG_FTAHBC020S_BASE + FTAHBC020S_CR)
#define AHBC_BSR6_A (CONFIG_FTAHBC020S_BASE + FTAHBC020S_SLAVE_BSR_6)
/*
* for Orca and Emerald
*/
#define AHBC_BSR4_A (CONFIG_FTAHBC020S_BASE + FTAHBC020S_SLAVE_BSR_4)
#define AHBC_BSR6_D CONFIG_SYS_FTAHBC020S_SLAVE_BSR_6
/*
@ -100,14 +113,49 @@ mem_init:
* we need to set onboard SDRAM before remap and relocation.
*/
led 0x01
write32 SMC_BANK0_CR_A, SMC_BANK0_CR_D ! 0x10000052
write32 SMC_BANK0_TPR_A, SMC_BANK0_TPR_D ! 0x00151151
/*
* for Orca and Emerald
* disable write protection and reset bank size
*/
li $r0, SMC_BANK0_CR_A
lwi $r1, [$r0+#0x00]
ori $r1, $r1, 0x8f0
xori $r1, $r1, 0x8f0
/*
* check board
*/
li $r3, CONFIG_FTPMU010_BASE + BOARD_ID_REG
lwi $r3, [$r3]
li $r4, BOARD_ID_FAMILY_MASK
and $r3, $r3, $r4
li $r4, BOARD_ID_FAMILY_K7
xor $r4, $r3, $r4
beqz $r4, use_flash_16bit_boot
/*
* 32-bit mode
*/
use_flash_32bit_boot:
ori $r1, $r1, 0x50
li $r2, 0x00151151
j sdram_b0_cr
/*
* 16-bit mode
*/
use_flash_16bit_boot:
ori $r1, $r1, 0x60
li $r2, 0x00153153
/*
* SRAM bank0 config
*/
sdram_b0_cr:
swi $r1, [$r0+#0x00]
swi $r2, [$r0+#0x04]
/*
* config AHB Controller
*/
led 0x02
write32 AHBC_BSR6_A, AHBC_BSR6_D
/*
* config PMU controller
@ -194,7 +242,16 @@ relo_base:
* a FLASH connected to bank0.
*/
led 0x11
li $r4, PHYS_SDRAM_0_AT_INIT /* 0x10000000 */
/*
* for Orca and Emerald
* read sdram base address automatically
*/
li $r5, AHBC_BSR6_A
lwi $r8, [$r5]
li $r4, 0xfff00000
and $r4, $r4, $r8
li $r5, 0x0
la $r1, relo_base /* get $pc or $lp */
sub $r2, $r0, $r1
@ -218,6 +275,29 @@ relo_base:
write32 SDMC_B1_BSR_A, 0x00001040
setbf15 AHBC_CR_A, FTAHBC020S_CR_REMAP ! 0x1
/*
* for Orca and Emerald
* extend sdram size from 256MB to 2GB
*/
li $r5, AHBC_BSR6_A
lwi $r6, [$r5]
li $r4, 0xfff0ffff
and $r6 ,$r4 , $r6
li $r4, 0x000b0000
or $r6, $r4, $r6
swi $r6, [$r5]
/*
* for Orca and Emerald
* extend rom base from 256MB to 2GB
*/
li $r4, AHBC_BSR4_A
lwi $r5, [$r4]
li $r6, 0xffffff
and $r5, $r5, $r6
li $r6, 0x80000000
or $r5, $r5, $r6
swi $r5, [$r4]
#endif /* #ifdef CONFIG_MEM_REMAP */
move $lp, $r11
2: