From: Qianyu Gong Date: Mon, 25 Apr 2016 08:38:35 +0000 (+0800) Subject: armv8/ls1043ardb: fix the limitation of using 'cpld reset' X-Git-Tag: v2016.07-rc1~173^2~13 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=869bf86811a7c942dc48b294d5c0442b1f57ab53;p=oweals%2Fu-boot.git armv8/ls1043ardb: fix the limitation of using 'cpld reset' The current 'cpld reset' will just write global_rst register but couldn't switch to NOR boot if the board's switches are for NAND/SD boot. So need to write rcw source registers for NOR boot as well. Signed-off-by: Gong Qianyu Reviewed-by: York Sun --- diff --git a/board/freescale/ls1043ardb/cpld.c b/board/freescale/ls1043ardb/cpld.c index 78c28246a8..c6452830ed 100644 --- a/board/freescale/ls1043ardb/cpld.c +++ b/board/freescale/ls1043ardb/cpld.c @@ -28,10 +28,18 @@ void cpld_write(unsigned int reg, u8 value) /* Set the boot bank to the alternate bank */ void cpld_set_altbank(void) { + u16 reg = CPLD_CFG_RCW_SRC_NOR; u8 reg4 = CPLD_READ(soft_mux_on); + u8 reg5 = (u8)(reg >> 1); + u8 reg6 = (u8)(reg & 1); u8 reg7 = CPLD_READ(vbank); - CPLD_WRITE(soft_mux_on, reg4 | CPLD_SW_MUX_BANK_SEL); + cpld_rev_bit(®5); + + CPLD_WRITE(soft_mux_on, reg4 | CPLD_SW_MUX_BANK_SEL | 1); + + CPLD_WRITE(cfg_rcw_src1, reg5); + CPLD_WRITE(cfg_rcw_src2, reg6); reg7 = (reg7 & ~CPLD_BANK_SEL_MASK) | CPLD_BANK_SEL_ALTBANK; CPLD_WRITE(vbank, reg7); @@ -42,7 +50,21 @@ void cpld_set_altbank(void) /* Set the boot bank to the default bank */ void cpld_set_defbank(void) { - CPLD_WRITE(global_rst, 1); + u16 reg = CPLD_CFG_RCW_SRC_NOR; + u8 reg4 = CPLD_READ(soft_mux_on); + u8 reg5 = (u8)(reg >> 1); + u8 reg6 = (u8)(reg & 1); + + cpld_rev_bit(®5); + + CPLD_WRITE(soft_mux_on, reg4 | CPLD_SW_MUX_BANK_SEL | 1); + + CPLD_WRITE(cfg_rcw_src1, reg5); + CPLD_WRITE(cfg_rcw_src2, reg6); + + CPLD_WRITE(vbank, 0); + + CPLD_WRITE(system_rst, 1); } void cpld_set_nand(void) diff --git a/board/freescale/ls1043ardb/cpld.h b/board/freescale/ls1043ardb/cpld.h index bd59c0e5d5..cb175b56fa 100644 --- a/board/freescale/ls1043ardb/cpld.h +++ b/board/freescale/ls1043ardb/cpld.h @@ -40,6 +40,7 @@ void cpld_rev_bit(unsigned char *value); #define CPLD_SW_MUX_BANK_SEL 0x40 #define CPLD_BANK_SEL_MASK 0x07 #define CPLD_BANK_SEL_ALTBANK 0x04 +#define CPLD_CFG_RCW_SRC_NOR 0x025 #define CPLD_CFG_RCW_SRC_NAND 0x106 #define CPLD_CFG_RCW_SRC_SD 0x040 #endif