From da634ae3567cc2df435f8617dbc95db2d079bf11 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andreas=20Bie=C3=9Fmann?= Date: Thu, 4 Apr 2013 23:52:50 +0000 Subject: omap_gpmc: change nandecc command MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With uppcoming BCH support on OMAP devices we need to decide between differnt algorithms when switching the ECC engine. Currently we support 1-bit hammign and 8-bit BCH on HW backend. In order to switch between differnet ECC algorithms we need to change the interface of omap_nand_switch_ecc() also. Signed-off-by: Andreas Bießmann Cc: Tom Rini Cc: Thomas Weber --- arch/arm/cpu/armv7/omap3/board.c | 31 +++++++++++++++++++++++-------- 1 file changed, 23 insertions(+), 8 deletions(-) (limited to 'arch/arm/cpu') diff --git a/arch/arm/cpu/armv7/omap3/board.c b/arch/arm/cpu/armv7/omap3/board.c index c6d9a42..b72fadc 100644 --- a/arch/arm/cpu/armv7/omap3/board.c +++ b/arch/arm/cpu/armv7/omap3/board.c @@ -328,14 +328,25 @@ void abort(void) *****************************************************************************/ static int do_switch_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) { - if (argc != 2) + if (argc < 2 || argc > 3) goto usage; - if (strncmp(argv[1], "hw", 2) == 0) - omap_nand_switch_ecc(1); - else if (strncmp(argv[1], "sw", 2) == 0) - omap_nand_switch_ecc(0); - else + + if (strncmp(argv[1], "hw", 2) == 0) { + if (argc == 2) { + omap_nand_switch_ecc(1, 1); + } else { + if (strncmp(argv[2], "hamming", 7) == 0) + omap_nand_switch_ecc(1, 1); + else if (strncmp(argv[2], "bch8", 4) == 0) + omap_nand_switch_ecc(1, 8); + else + goto usage; + } + } else if (strncmp(argv[1], "sw", 2) == 0) { + omap_nand_switch_ecc(0, 0); + } else { goto usage; + } return 0; @@ -345,9 +356,13 @@ usage: } U_BOOT_CMD( - nandecc, 2, 1, do_switch_ecc, + nandecc, 3, 1, do_switch_ecc, "switch OMAP3 NAND ECC calculation algorithm", - "[hw/sw] - Switch between NAND hardware (hw) or software (sw) ecc algorithm" + "hw [hamming|bch8] - Switch between NAND hardware 1-bit hamming and" + " 8-bit BCH\n" + " ecc calculation (second parameter may" + " be omitted).\n" + "nandecc sw - Switch to NAND software ecc algorithm." ); #endif /* CONFIG_NAND_OMAP_GPMC & !CONFIG_SPL_BUILD */ -- cgit v1.1