From patchwork Thu Apr 3 11:25:32 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: pekon gupta X-Patchwork-Id: 336617 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id 4314D14009C for ; Thu, 3 Apr 2014 22:25:57 +1100 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id EEC314BB11; Thu, 3 Apr 2014 13:25:55 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id w7prIA5pHJ0J; Thu, 3 Apr 2014 13:25:55 +0200 (CEST) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 5F4DC4BB12; Thu, 3 Apr 2014 13:25:54 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id F2BE94BB12 for ; Thu, 3 Apr 2014 13:25:49 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Q9y5g5js1vIn for ; Thu, 3 Apr 2014 13:25:46 +0200 (CEST) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from devils.ext.ti.com (devils.ext.ti.com [198.47.26.153]) by theia.denx.de (Postfix) with ESMTPS id 2CD654BB11 for ; Thu, 3 Apr 2014 13:25:44 +0200 (CEST) Received: from dflxv15.itg.ti.com ([128.247.5.124]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id s33BPdVD000331; Thu, 3 Apr 2014 06:25:39 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id s33BPdir024379; Thu, 3 Apr 2014 06:25:39 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.3.174.1; Thu, 3 Apr 2014 06:25:39 -0500 Received: from psplinux063.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id s33BPbgG008104; Thu, 3 Apr 2014 06:25:38 -0500 From: Pekon Gupta To: Scott Wood , Tom Rini Date: Thu, 3 Apr 2014 16:55:32 +0530 Message-ID: <1396524332-25353-1-git-send-email-pekon@ti.com> X-Mailer: git-send-email 1.8.5.1.163.gd7aced9 MIME-Version: 1.0 Cc: u-boot@lists.denx.de, Ezequiel Garcia Subject: [U-Boot] [PATCH] am33xx: add support for beaglebone NAND cape X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.11 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de Beaglebone Board can be connected to expansion boards to add devices to them. These expansion boards are called 'capes'. This patch adds support for following versions of Beaglebone(AM335x) NAND capes (a) NAND Device with bus-width=16, block-size=128k, page-size=2k, oob-size=64 (b) NAND Device with bus-width=16, block-size=256k, page-size=4k, oob-size=224 Further information and datasheets can be found at [1] and [2] * How to boot from NAND using Memory Expander + NAND Cape ? * - Important: As BOOTSEL values are sampled only at POR, so after changing any setting on SW2 (DIP switch), disconnect and reconnect all board power supply (including mini-USB console port) to POR the beaglebone. - Selection of ECC scheme for NAND cape(a), ROM code expects BCH8_HW ecc-scheme for NAND cape(b), ROM code expects BCH16_HW ecc-scheme - Selction of boot modes can be controlled via DIP switch(SW2) present on Memory Expander cape. SW2[SWITCH_BOOT] == OFF follow default boot order MMC-> SPI -> UART -> USB SW2[SWITCH_BOOT] == ON boot mode selected via DIP switch(SW2) So to flash NAND, first boot via MMC or other sources and then switch to SW2[SWITCH_BOOT]=ON to boot from NAND Cape. - For NAND boot following switch settings need to be followed SW2[ 0] = ON (SYSBOOT[ 0]==0: NAND boot mode selected ) SW2[ 1] = ON (SYSBOOT[ 1]==0: -- do -- ) SW2[ 2] = OFF (SYSBOOT[ 2]==1: -- do -- ) SW2[ 3] = OFF (SYSBOOT[ 3]==1: -- do -- ) SW2[ 4] = ON (SYSBOOT[ 4]==0: -- do -- ) SW2[ 8] = OFF (SYSBOOT[ 8]==1: 0:x8 device, 1:x16 device ) SW2[ 9] = ON (SYSBOOT[ 9]==0: ECC done by ROM ) SW2[10] = ON (SYSBOOT[10]==0: Non Muxed device ) SW2[11] = ON (SYSBOOT[11]==0: -- do -- ) [1] http://beagleboardtoys.info/index.php?title=BeagleBone_Memory_Expansion [2] http://beagleboardtoys.info/index.php?title=BeagleBone_4Gb_16-Bit_NAND_Module Signed-off-by: Pekon Gupta --- board/ti/am335x/mux.c | 75 +++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 55 insertions(+), 20 deletions(-) diff --git a/board/ti/am335x/mux.c b/board/ti/am335x/mux.c index b2bfda5..9ddcad0 100644 --- a/board/ti/am335x/mux.c +++ b/board/ti/am335x/mux.c @@ -171,25 +171,53 @@ static struct module_pin_mux mii1_pin_mux[] = { {-1}, }; -static struct module_pin_mux nand_pin_mux[] = { - {OFFSET(gpmc_ad0), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD0 */ - {OFFSET(gpmc_ad1), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD1 */ - {OFFSET(gpmc_ad2), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD2 */ - {OFFSET(gpmc_ad3), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD3 */ - {OFFSET(gpmc_ad4), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD4 */ - {OFFSET(gpmc_ad5), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD5 */ - {OFFSET(gpmc_ad6), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD6 */ - {OFFSET(gpmc_ad7), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD7 */ - {OFFSET(gpmc_wait0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* NAND WAIT */ - {OFFSET(gpmc_wpn), (MODE(7) | PULLUP_EN | RXACTIVE)}, /* NAND_WPN */ - {OFFSET(gpmc_csn0), (MODE(0) | PULLUDEN)}, /* NAND_CS0 */ - {OFFSET(gpmc_advn_ale), (MODE(0) | PULLUDEN)}, /* NAND_ADV_ALE */ - {OFFSET(gpmc_oen_ren), (MODE(0) | PULLUDEN)}, /* NAND_OE */ - {OFFSET(gpmc_wen), (MODE(0) | PULLUDEN)}, /* NAND_WEN */ - {OFFSET(gpmc_be0n_cle), (MODE(0) | PULLUDEN)}, /* NAND_BE_CLE */ +#ifdef CONFIG_NAND +static struct module_pin_mux nand_x16_pin_mux[] = { + {OFFSET(gpmc_ad0), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD0 */ + {OFFSET(gpmc_ad1), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD1 */ + {OFFSET(gpmc_ad2), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD2 */ + {OFFSET(gpmc_ad3), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD3 */ + {OFFSET(gpmc_ad4), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD4 */ + {OFFSET(gpmc_ad5), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD5 */ + {OFFSET(gpmc_ad6), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD6 */ + {OFFSET(gpmc_ad7), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD7 */ + {OFFSET(gpmc_ad8), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD8 */ + {OFFSET(gpmc_ad9), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD9 */ + {OFFSET(gpmc_ad10), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD10 */ + {OFFSET(gpmc_ad11), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD11 */ + {OFFSET(gpmc_ad12), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD12 */ + {OFFSET(gpmc_ad13), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD13 */ + {OFFSET(gpmc_ad14), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD14 */ + {OFFSET(gpmc_ad15), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD15 */ + {OFFSET(gpmc_wait0), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* nWAIT */ + {OFFSET(gpmc_wpn), (MODE(7) | PULLUP_EN)}, /* nWP */ + {OFFSET(gpmc_csn0), (MODE(0) | PULLUP_EN)}, /* nCS */ + {OFFSET(gpmc_wen), (MODE(0) | PULLDOWN_EN)}, /* WEN */ + {OFFSET(gpmc_oen_ren), (MODE(0) | PULLDOWN_EN)}, /* OE */ + {OFFSET(gpmc_advn_ale), (MODE(0) | PULLDOWN_EN)}, /* ADV_ALE */ + {OFFSET(gpmc_be0n_cle), (MODE(0) | PULLDOWN_EN)}, /* BE_CLE */ {-1}, }; +static struct module_pin_mux nand_x8_pin_mux[] = { + {OFFSET(gpmc_ad0), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD0 */ + {OFFSET(gpmc_ad1), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD1 */ + {OFFSET(gpmc_ad2), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD2 */ + {OFFSET(gpmc_ad3), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD3 */ + {OFFSET(gpmc_ad4), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD4 */ + {OFFSET(gpmc_ad5), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD5 */ + {OFFSET(gpmc_ad6), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD6 */ + {OFFSET(gpmc_ad7), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD7 */ + {OFFSET(gpmc_wait0), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* nWAIT */ + {OFFSET(gpmc_wpn), (MODE(7) | PULLUP_EN)}, /* nWP */ + {OFFSET(gpmc_csn0), (MODE(0) | PULLUP_EN)}, /* nCS */ + {OFFSET(gpmc_wen), (MODE(0) | PULLDOWN_EN)}, /* WEN */ + {OFFSET(gpmc_oen_ren), (MODE(0) | PULLDOWN_EN)}, /* OE */ + {OFFSET(gpmc_advn_ale), (MODE(0) | PULLDOWN_EN)}, /* ADV_ALE */ + {OFFSET(gpmc_be0n_cle), (MODE(0) | PULLDOWN_EN)}, /* BE_CLE */ + {-1}, +}; +#endif #if defined(CONFIG_NOR) && !defined(CONFIG_NOR_BOOT) static struct module_pin_mux bone_norcape_pin_mux[] = { {OFFSET(lcd_data0), MODE(1) | PULLUDEN | RXACTIVE}, /* NOR_A0 */ @@ -336,11 +364,12 @@ void enable_board_pin_mux(struct am335x_baseboard_id *header) configure_module_pin_mux(i2c1_pin_mux); configure_module_pin_mux(mii1_pin_mux); configure_module_pin_mux(mmc0_pin_mux); -#ifndef CONFIG_NOR - configure_module_pin_mux(mmc1_pin_mux); -#endif #if defined(CONFIG_NOR) && !defined(CONFIG_NOR_BOOT) configure_module_pin_mux(bone_norcape_pin_mux); +#elif defined(CONFIG_NAND) + configure_module_pin_mux(nand_x16_pin_mux); +#else + configure_module_pin_mux(mmc1_pin_mux); #endif } else if (board_is_gp_evm(header)) { /* General Purpose EVM */ @@ -351,8 +380,10 @@ void enable_board_pin_mux(struct am335x_baseboard_id *header) if (profile & ~PROFILE_2) configure_module_pin_mux(i2c1_pin_mux); /* Profiles 2 & 3 don't have NAND */ +#ifdef CONFIG_NAND if (profile & ~(PROFILE_2 | PROFILE_3)) - configure_module_pin_mux(nand_pin_mux); + configure_module_pin_mux(nand_x8_pin_mux); +#endif else if (profile == PROFILE_2) { configure_module_pin_mux(mmc1_pin_mux); configure_module_pin_mux(spi0_pin_mux); @@ -377,7 +408,11 @@ void enable_board_pin_mux(struct am335x_baseboard_id *header) configure_module_pin_mux(i2c1_pin_mux); configure_module_pin_mux(mii1_pin_mux); configure_module_pin_mux(mmc0_pin_mux); +#if defined(CONFIG_NAND) + configure_module_pin_mux(nand_x16_pin_mux); +#else configure_module_pin_mux(mmc1_pin_mux); +#endif } else { puts("Unknown board, cannot configure pinmux."); hang();