From: Lad, Prabhakar prabhakar.lad@ti.com

This patch adds support for MMC/SD on DA850/OMAP-L138.

Signed-off-by: Lad, Prabhakar prabhakar.lad@ti.com Signed-off-by: Rajashekhara, Sudhakar sudhakar.raj@ti.com Signed-off-by: Hadli, Manjunath manjunath.hadli@ti.com --- arch/arm/cpu/arm926ejs/davinci/da850_pinmux.c | 13 ++++++++++ arch/arm/include/asm/arch-davinci/hardware.h | 1 + arch/arm/include/asm/arch-davinci/pinmux_defs.h | 3 ++ board/davinci/da8xxevm/da850evm.c | 28 +++++++++++++++++++++++ include/configs/da850evm.h | 14 +++++++++++ 5 files changed, 59 insertions(+), 0 deletions(-)

diff --git a/arch/arm/cpu/arm926ejs/davinci/da850_pinmux.c b/arch/arm/cpu/arm926ejs/davinci/da850_pinmux.c index fa07fb5..a95e419 100644 --- a/arch/arm/cpu/arm926ejs/davinci/da850_pinmux.c +++ b/arch/arm/cpu/arm926ejs/davinci/da850_pinmux.c @@ -169,3 +169,16 @@ const struct pinmux_config emifa_pins_nor[] = { { pinmux(12), 1, 6 }, /* EMA_A[1] */ { pinmux(12), 1, 7 }, /* EMA_A[0] */ }; + +/* MMC0 pin muxer settings */ +const struct pinmux_config mmc0_pins[] = { + /* GP0[11] is required for SD to work on Rev 3 EVMs */ + { pinmux(0), 8, 4 }, /* GP0[11] */ + { pinmux(10), 2, 0 }, /* MMCSD0_CLK */ + { pinmux(10), 2, 1 }, /* MMCSD0_CMD */ + { pinmux(10), 2, 2 }, /* MMCSD0_DAT_0 */ + { pinmux(10), 2, 3 }, /* MMCSD0_DAT_1 */ + { pinmux(10), 2, 4 }, /* MMCSD0_DAT_2 */ + { pinmux(10), 2, 5 }, /* MMCSD0_DAT_3 */ + /* DA850 supports only 4-bit mode, remaining pins are not configured */ +}; diff --git a/arch/arm/include/asm/arch-davinci/hardware.h b/arch/arm/include/asm/arch-davinci/hardware.h index b145c6e..f6b7a2c 100644 --- a/arch/arm/include/asm/arch-davinci/hardware.h +++ b/arch/arm/include/asm/arch-davinci/hardware.h @@ -446,6 +446,7 @@ struct davinci_pllc_regs { #define DAVINCI_SPI1_CLKID (cpu_is_da830() ? 2 : ASYNC3) /* Clock IDs */ enum davinci_clk_ids { + DAVINCI_MMCSD_CLKID = 2, DAVINCI_SPI0_CLKID = 2, DAVINCI_UART2_CLKID = 2, DAVINCI_MMC_CLKID = 2, diff --git a/arch/arm/include/asm/arch-davinci/pinmux_defs.h b/arch/arm/include/asm/arch-davinci/pinmux_defs.h index 07aceaa..c9ac697 100644 --- a/arch/arm/include/asm/arch-davinci/pinmux_defs.h +++ b/arch/arm/include/asm/arch-davinci/pinmux_defs.h @@ -48,4 +48,7 @@ extern const struct pinmux_config emifa_pins_cs4[1]; extern const struct pinmux_config emifa_pins_nand[12]; extern const struct pinmux_config emifa_pins_nor[43];

+/* MMC pin muxer settings */ +extern const struct pinmux_config mmc0_pins[7]; + #endif diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c index 82d707f..608c652 100644 --- a/board/davinci/da8xxevm/da850evm.c +++ b/board/davinci/da8xxevm/da850evm.c @@ -36,6 +36,11 @@ #include <asm/errno.h> #include <hwconfig.h>

+#ifdef CONFIG_DAVINCI_MMC +#include <mmc.h> +#include <asm/arch/sdmmc_defs.h> +#endif + DECLARE_GLOBAL_DATA_PTR;

#ifdef CONFIG_DRIVER_TI_EMAC @@ -204,6 +209,23 @@ int misc_init_r(void) return 0; }

+#ifdef CONFIG_DAVINCI_MMC +static struct davinci_mmc mmc_sd0 = { + .reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE, + .host_caps = MMC_MODE_4BIT, /* DA850 supports only 4-bit SD/MMC */ + .voltages = MMC_VDD_32_33 | MMC_VDD_33_34, + .version = MMC_CTLR_VERSION_2, +}; + +int board_mmc_init(bd_t *bis) +{ + mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID); + + /* Add slot-0 to mmc subsystem */ + return davinci_mmc_init(bis, &mmc_sd0); +} +#endif + static const struct pinmux_config gpio_pins[] = { #ifdef CONFIG_USE_NOR /* GP0[11] is required for NOR to work on Rev 3 EVMs */ @@ -236,6 +258,9 @@ const struct pinmux_resource pinmuxes[] = { PINMUX_ITEM(emifa_pins_nor), #endif PINMUX_ITEM(gpio_pins), +#ifdef CONFIG_DAVINCI_MMC + PINMUX_ITEM(mmc0_pins), +#endif };

const int pinmuxes_size = ARRAY_SIZE(pinmuxes); @@ -246,6 +271,9 @@ const struct lpsc_resource lpsc[] = { { DAVINCI_LPSC_EMAC }, /* image download */ { DAVINCI_LPSC_UART2 }, /* console */ { DAVINCI_LPSC_GPIO }, +#ifdef CONFIG_DAVINCI_MMC + { DAVINCI_LPSC_MMC_SD }, +#endif };

const int lpsc_size = ARRAY_SIZE(lpsc); diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h index 989472b..9301a3b 100644 --- a/include/configs/da850evm.h +++ b/include/configs/da850evm.h @@ -313,6 +313,20 @@ #undef CONFIG_CMD_ENV #endif

+/* SD/MMC */ +#define CONFIG_MMC +#define CONFIG_DAVINCI_MMC_SD1 +#define CONFIG_MMC_MBLOCK +#define CONFIG_GENERIC_MMC +#define CONFIG_DAVINCI_MMC + +#ifdef CONFIG_MMC +#define CONFIG_DOS_PARTITION +#define CONFIG_CMD_EXT2 +#define CONFIG_CMD_FAT +#define CONFIG_CMD_MMC +#endif + /* defines for SPL */ #define CONFIG_SPL #define CONFIG_SPL_SPI_SUPPORT

From: Lad, Prabhakar prabhakar.lad@ti.com

DA850/OMAP-L138 does not support strict MMC/SD boot mode. SPL will be in SPI flash and U-Boot image will be in MMC/SD card. SPL will do the low level initialization and then loads the u-boot image from MMC/SD card.

Define the CONFIG_SPL_MMC_LOAD macro in the DA850/OMAP-L138 configuration file to enable this feature.

Signed-off-by: Lad, Prabhakar prabhakar.lad@ti.com Signed-off-by: Rajashekhara, Sudhakar sudhakar.raj@ti.com Signed-off-by: Hadli, Manjunath manjunath.hadli@ti.com --- arch/arm/cpu/arm926ejs/davinci/spl.c | 12 ++++++- drivers/mmc/Makefile | 4 ++ drivers/mmc/spl_mmc_load.c | 62 ++++++++++++++++++++++++++++++++++ include/configs/da850evm.h | 8 ++++ include/mmc.h | 2 + 5 files changed, 87 insertions(+), 1 deletions(-) create mode 100644 drivers/mmc/spl_mmc_load.c

diff --git a/arch/arm/cpu/arm926ejs/davinci/spl.c b/arch/arm/cpu/arm926ejs/davinci/spl.c index 74632e5..be397ce 100644 --- a/arch/arm/cpu/arm926ejs/davinci/spl.c +++ b/arch/arm/cpu/arm926ejs/davinci/spl.c @@ -28,6 +28,11 @@ #include <ns16550.h> #include <malloc.h> #include <spi_flash.h> +#include <mmc.h> +#include <fat.h> +#include <version.h> +#include <asm/arch/davinci_misc.h> +#include <asm/arch/pinmux_defs.h>

#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT

@@ -91,6 +96,11 @@ void board_init_r(gd_t *id, ulong dummy) gd->have_console = 1;

puts("SPI boot...\n"); +#ifdef CONFIG_SPL_MMC_LOAD + spl_mmc_load(); +#else spi_boot(); -#endif +#endif /* CONFIG_SPL_MMC_LOAD */ + +#endif /* CONFIG_SPL_SPI_LOAD */ } diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index c245352..bf4b7d5 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -25,6 +25,10 @@ include $(TOPDIR)/config.mk

LIB := $(obj)libmmc.o

+ifdef CONFIG_SPL_MMC_LOAD +COBJS-$(CONFIG_SPL_SPI_LOAD) += spl_mmc_load.o +endif + COBJS-$(CONFIG_BFIN_SDH) += bfin_sdh.o COBJS-$(CONFIG_DAVINCI_MMC) += davinci_mmc.o COBJS-$(CONFIG_FSL_ESDHC) += fsl_esdhc.o diff --git a/drivers/mmc/spl_mmc_load.c b/drivers/mmc/spl_mmc_load.c new file mode 100644 index 0000000..347dcfe --- /dev/null +++ b/drivers/mmc/spl_mmc_load.c @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <common.h> +#include <mmc.h> + +DECLARE_GLOBAL_DATA_PTR; + +static void mmc_load_image(struct mmc *mmc) +{ + s32 err; + void (*uboot)(void) __noreturn; + + err = mmc->block_dev.block_read(0, CONFIG_SYS_MMC_U_BOOT_OFFS, + CONFIG_SYS_SPI_U_BOOT_SIZE/512, + (u32 *)CONFIG_SYS_TEXT_BASE); + + if (err <= 0) { + printf("spl: error reading image %s, err - %d\n", + "u-boot.img", err); + hang(); + } + uboot = (void *) CONFIG_SYS_TEXT_BASE; + (*uboot)(); +} + +void spl_mmc_load(void) +{ + struct mmc *mmc; + int err; + void (mmc_load_image)(struct mmc *mmc) __noreturn; + + mmc_initialize(gd->bd); + mmc = find_mmc_device(0); + if (!mmc) { + puts("spl: mmc device not found!!\n"); + hang(); + } else { + puts("spl: mmc device found\n"); + } + err = mmc_init(mmc); + if (err) { + printf("spl: mmc init failed: err - %d\n", err); + hang(); + } + mmc_load_image(mmc); +} diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h index 9301a3b..4da6d24 100644 --- a/include/configs/da850evm.h +++ b/include/configs/da850evm.h @@ -320,6 +320,14 @@ #define CONFIG_GENERIC_MMC #define CONFIG_DAVINCI_MMC

+/* Load U-Boot Image From MMC */ +#ifdef CONFIG_SPL_MMC_LOAD +#define CONFIG_SPL_MMC_SUPPORT +#define CONFIG_SPL_FAT_SUPPORT +#define CONFIG_SPL_LIBDISK_SUPPORT +#define CONFIG_SYS_MMC_U_BOOT_OFFS 0x75 +#endif + #ifdef CONFIG_MMC #define CONFIG_DOS_PARTITION #define CONFIG_CMD_EXT2 diff --git a/include/mmc.h b/include/mmc.h index f52df70..282b54d 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -27,6 +27,7 @@ #define _MMC_H_

#include <linux/list.h> +#include <linux/compiler.h>

#define SD_VERSION_SD 0x20000 #define SD_VERSION_2 (SD_VERSION_SD | 0x20) @@ -320,6 +321,7 @@ int get_mmc_num(void); int board_mmc_getcd(struct mmc *mmc); int mmc_switch_part(int dev_num, unsigned int part_num); int mmc_getcd(struct mmc *mmc); +void spl_mmc_load(void) __noreturn;

#ifdef CONFIG_GENERIC_MMC #define mmc_host_is_spi(mmc) ((mmc)->host_caps & MMC_MODE_SPI)

From: Lad, Prabhakar prabhakar.lad@ti.com

Though Commit id a3f88293ddd13facd734769c1664d35ab4ed681f (da850evm: setup the NAND flash timings) has configured the AEMIF timings, they are not exactly in sync with the timings used in Linux. Linux is configuring the timing register as 0x08222204, where as currently it configured to 0x00100084 in U-Boot. This issue was found out when support for NAND SPL is added in U-Boot. Without this patch U-Boot does not come up with SPL.

Signed-off-by: Lad, Prabhakar prabhakar.lad@ti.com Signed-off-by: Rajashekhara, Sudhakar sudhakar.raj@ti.com Signed-off-by: Hadli, Manjunath manjunath.hadli@ti.com --- board/davinci/da8xxevm/da850evm.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c index 62b9098..2c4d2c4 100644 --- a/board/davinci/da8xxevm/da850evm.c +++ b/board/davinci/da8xxevm/da850evm.c @@ -344,11 +344,11 @@ int board_init(void) * NAND CS setup - cycle counts based on da850evm NAND timings in the * Linux kernel @ 25MHz EMIFA */ - writel((DAVINCI_ABCR_WSETUP(0) | - DAVINCI_ABCR_WSTROBE(1) | - DAVINCI_ABCR_WHOLD(0) | - DAVINCI_ABCR_RSETUP(0) | - DAVINCI_ABCR_RSTROBE(1) | + writel((DAVINCI_ABCR_WSETUP(2) | + DAVINCI_ABCR_WSTROBE(2) | + DAVINCI_ABCR_WHOLD(1) | + DAVINCI_ABCR_RSETUP(1) | + DAVINCI_ABCR_RSTROBE(4) | DAVINCI_ABCR_RHOLD(0) | DAVINCI_ABCR_TA(1) | DAVINCI_ABCR_ASIZE_8BIT),

From: Lad, Prabhakar prabhakar.lad@ti.com

This patch adds support for direct NOR boot mode on da850/omap-l138.

Define the CONFIG_DIRECT_NOR_BOOT macro along with CONFIG_USE_NOR in the DA850/OMAP-L138 configuration file to enable this feature.

Signed-off-by: Lad, Prabhakar prabhakar.lad@ti.com Signed-off-by: Rajashekhara, Sudhakar sudhakar.raj@ti.com Signed-off-by: Hadli, Manjunath manjunath.hadli@ti.com --- include/configs/da850evm.h | 26 +++++++++++++++++++++++++- 1 files changed, 25 insertions(+), 1 deletions(-)

diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h index f33eba8..5c373bc 100644 --- a/include/configs/da850evm.h +++ b/include/configs/da850evm.h @@ -24,6 +24,13 @@ #define __CONFIG_H

/* + * Define this when NOR U-Boot is loaded directly from flash as it + * must perform all the low level initialization itself. + * +#define CONFIG_DIRECT_NOR_BOOT +*/ + +/* * Board */ #define CONFIG_DRIVER_TI_EMAC @@ -43,10 +50,19 @@ #define CONFIG_SYS_TIMERBASE DAVINCI_TIMER0_BASE #define CONFIG_SYS_HZ_CLOCK clk_get(DAVINCI_AUXCLK_CLKID) #define CONFIG_SYS_HZ 1000 -#define CONFIG_SYS_TEXT_BASE 0xc1080000 #define CONFIG_SYS_DA850_PLL_INIT #define CONFIG_SYS_DA850_DDR_INIT

+#ifdef CONFIG_DIRECT_NOR_BOOT +#define CONFIG_ARCH_CPU_INIT +#define CONFIG_DA8XX_GPIO +#define CONFIG_SYS_TEXT_BASE 0x60000000 +#define CONFIG_SYS_DV_NOR_BOOT_CFG (0x11) +#define CONFIG_DA850_LOWLEVEL +#else +#define CONFIG_SYS_TEXT_BASE 0xc1080000 +#endif + /* * Memory Info */ @@ -373,6 +389,7 @@ #define CONFIG_SYS_SPI_U_BOOT_SIZE 0x30000 #endif

+#ifndef CONFIG_USE_NOR /* defines for SPL */ #define CONFIG_SPL #define CONFIG_SPL_SERIAL_SUPPORT @@ -382,9 +399,16 @@ #define CONFIG_SPL_STACK 0x8001ff00 #define CONFIG_SPL_TEXT_BASE 0x80000000 #define CONFIG_SPL_MAX_SIZE 32768 +#endif + /* additions for new relocation code, must added to all boards */ #define CONFIG_SYS_SDRAM_BASE 0xc0000000 + +#ifdef CONFIG_DIRECT_NOR_BOOT +#define CONFIG_SYS_INIT_SP_ADDR 0x8001ff00 +#else #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + 0x1000 - /* Fix this */ \ GENERATED_GBL_DATA_SIZE) +#endif /* CONFIG_DIRECT_NOR_BOOT */

#endif /* __CONFIG_H */