Signed-off-by: Gong Qianyu Qianyu.Gong@freescale.com --- board/freescale/ls1043ardb/cpld.c | 18 ++++++++++++++++++ board/freescale/ls1043ardb/cpld.h | 1 + 2 files changed, 19 insertions(+)
diff --git a/board/freescale/ls1043ardb/cpld.c b/board/freescale/ls1043ardb/cpld.c index 3f1101e..5acb97d 100644 --- a/board/freescale/ls1043ardb/cpld.c +++ b/board/freescale/ls1043ardb/cpld.c @@ -45,6 +45,21 @@ void cpld_set_defbank(void) CPLD_WRITE(global_rst, 1); }
+void cpld_set_nand(void) +{ + u16 reg = CPLD_CFG_RCW_SRC_NAND; + u8 reg5 = (u8)(reg >> 1); + u8 reg6 = (u8)(reg & 1); + cpld_rev_bit(®5); + + CPLD_WRITE(soft_mux_on, 1); + + CPLD_WRITE(cfg_rcw_src1, reg5); + CPLD_WRITE(cfg_rcw_src2, reg6); + + CPLD_WRITE(system_rst, 1); +} + #ifdef DEBUG static void cpld_dump_regs(void) { @@ -91,6 +106,8 @@ int do_cpld(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) if (strcmp(argv[1], "reset") == 0) { if (strcmp(argv[2], "altbank") == 0) cpld_set_altbank(); + else if (strcmp(argv[2], "nand") == 0) + cpld_set_nand(); else cpld_set_defbank(); #ifdef DEBUG @@ -109,6 +126,7 @@ U_BOOT_CMD( "Reset the board or alternate bank", "reset: reset to default bank\n" "cpld reset altbank: reset to alternate bank\n" + "cpld reset nand: reset to boot from NAND flash\n" #ifdef DEBUG "cpld dump - display the CPLD registers\n" #endif diff --git a/board/freescale/ls1043ardb/cpld.h b/board/freescale/ls1043ardb/cpld.h index ea4efd8..5f43a8a 100644 --- a/board/freescale/ls1043ardb/cpld.h +++ b/board/freescale/ls1043ardb/cpld.h @@ -40,4 +40,5 @@ 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_NAND 0x106 #endif