From 44199ebc801c8cd485086fb91dde8b359f35c07d Mon Sep 17 00:00:00 2001 From: Rick Chen Date: Tue, 29 May 2018 11:07:53 +0800 Subject: [PATCH] board: ax25-ae350: Support cfi flash Add smc_init() to get register base from dts and deal with atfsmc020 controler initialzation job. Write protect is enabled by default. So WP shall be disabled when startup, then cfi flash can be detected and erasing and writing can be executed. Adp-ae3xx and adp-ag101p both do smc initilize job in lowlevel_init.S and get register base fron CONFIG_FTSMC020_BASE. They also can be moved those codes to board stage. Remind them as todo jobs. After that CONFIG_FTSMC020_BASE can be removed. Signed-off-by: Rick Chen Signed-off-by: Rick Chen Cc: Greentime Hu --- board/AndesTech/ax25-ae350/ax25-ae350.c | 34 +++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/board/AndesTech/ax25-ae350/ax25-ae350.c b/board/AndesTech/ax25-ae350/ax25-ae350.c index bc625f1..fd5aaa1 100644 --- a/board/AndesTech/ax25-ae350/ax25-ae350.c +++ b/board/AndesTech/ax25-ae350/ax25-ae350.c @@ -10,6 +10,8 @@ #include #endif #include +#include +#include DECLARE_GLOBAL_DATA_PTR; @@ -72,3 +74,35 @@ void *board_fdt_blob_setup(void) return (void *)CONFIG_SYS_FDT_BASE; } + +int smc_init(void) +{ + int node = -1; + const char *compat = "andestech,atfsmc020"; + void *blob = (void *)gd->fdt_blob; + fdt_addr_t addr; + struct ftsmc020_bank *regs; + + node = fdt_node_offset_by_compatible(blob, -1, compat); + if (node < 0) + return -FDT_ERR_NOTFOUND; + + addr = fdtdec_get_addr(blob, node, "reg"); + + if (addr == FDT_ADDR_T_NONE) + return -EINVAL; + + regs = (struct ftsmc020_bank *)addr; + regs->cr &= ~FTSMC020_BANK_WPROT; + + return 0; +} + +#ifdef CONFIG_BOARD_EARLY_INIT_F +int board_early_init_f(void) +{ + smc_init(); + + return 0; +} +#endif -- 2.7.4