From 9f07dedeb0f20108252a9af462f398a04709f1a3 Mon Sep 17 00:00:00 2001 From: Daniel Gorsulowski Date: Mon, 9 Aug 2010 11:17:13 +0200 Subject: at91: Defined main clock frequency on esd at91 boards Autodetection is undesired now Signed-off-by: Daniel Gorsulowski Signed-off-by: Reinhard Meyer --- include/configs/meesc.h | 3 ++- include/configs/otc570.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/configs/meesc.h b/include/configs/meesc.h index e085f4a47c5..dad0bef118f 100644 --- a/include/configs/meesc.h +++ b/include/configs/meesc.h @@ -3,7 +3,7 @@ * Stelian Pop * Lead Tech Design * - * (C) Copyright 2009 + * (C) Copyright 2009-2010 * Daniel Gorsulowski * esd electronic system design gmbh * @@ -38,6 +38,7 @@ #define CONFIG_MEESC 1 /* Board is esd MEESC */ #define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */ #define CONFIG_AT91SAM9263 1 /* It's an AT91SAM9263 SoC */ +#define CONFIG_SYS_AT91_MAIN_CLOCK 16000000/* 16.0 MHz crystal */ #define CONFIG_DISPLAY_BOARDINFO 1 #define CONFIG_DISPLAY_CPUINFO 1 /* display cpu info and speed */ #define CONFIG_PREBOOT /* enable preboot variable */ diff --git a/include/configs/otc570.h b/include/configs/otc570.h index fb0f576f456..4a1cedec0fe 100644 --- a/include/configs/otc570.h +++ b/include/configs/otc570.h @@ -35,6 +35,7 @@ #define CONFIG_OTC570 1 /* Board is esd OTC570 */ #define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */ #define CONFIG_AT91SAM9263 1 /* It's an AT91SAM9263 SoC */ +#define CONFIG_SYS_AT91_MAIN_CLOCK 16000000/* 16.0 MHz crystal */ #define CONFIG_SYS_HZ 1000 /* decrementer freq */ #define CONFIG_DISPLAY_BOARDINFO 1 #define CONFIG_DISPLAY_CPUINFO 1 /* display cpu info and speed */ -- cgit v1.3.1 From d4562e0940444ffa5fa70ef882413369b358358c Mon Sep 17 00:00:00 2001 From: Daniel Gorsulowski Date: Mon, 9 Aug 2010 11:17:14 +0200 Subject: at91: Update meesc board to new SoC access * convert meesc board to use c stucture SoC access * change gpio access to at91_gpio syntax * moved CONFIG_SYS_HZ below board and cpu defines (purely cosmetic) Signed-off-by: Daniel Gorsulowski Signed-off-by: Reinhard Meyer --- board/esd/meesc/meesc.c | 112 +++++++++++++++++++++++++----------------------- include/configs/meesc.h | 10 ++--- 2 files changed, 62 insertions(+), 60 deletions(-) (limited to 'include') diff --git a/board/esd/meesc/meesc.c b/board/esd/meesc/meesc.c index 694bd743588..58ef7be5d08 100644 --- a/board/esd/meesc/meesc.c +++ b/board/esd/meesc/meesc.c @@ -3,7 +3,7 @@ * Stelian Pop * Lead Tech Design * - * (C) Copyright 2009 + * (C) Copyright 2009-2010 * Daniel Gorsulowski * esd electronic system design gmbh * @@ -28,13 +28,13 @@ #include #include -#include #include #include #include #include +#include +#include #include -#include #include #include #include @@ -52,10 +52,10 @@ int get_hw_rev(void) if (hw_rev >= 0) return hw_rev; - hw_rev = at91_get_gpio_value(AT91_PIN_PB19); - hw_rev |= at91_get_gpio_value(AT91_PIN_PB20) << 1; - hw_rev |= at91_get_gpio_value(AT91_PIN_PB21) << 2; - hw_rev |= at91_get_gpio_value(AT91_PIN_PB22) << 3; + hw_rev = at91_get_pio_value(AT91_PIO_PORTB, 19); + hw_rev |= at91_get_pio_value(AT91_PIO_PORTB, 20) << 1; + hw_rev |= at91_get_pio_value(AT91_PIO_PORTB, 21) << 2; + hw_rev |= at91_get_pio_value(AT91_PIO_PORTB, 22) << 3; if (hw_rev == 15) hw_rev = 0; @@ -67,44 +67,44 @@ int get_hw_rev(void) static void meesc_nand_hw_init(void) { unsigned long csa; + at91_smc_t *smc = (at91_smc_t *) AT91_SMC0_BASE; + at91_matrix_t *matrix = (at91_matrix_t *) AT91_MATRIX_BASE; /* Enable CS3 */ - csa = at91_sys_read(AT91_MATRIX_EBI0CSA); - at91_sys_write(AT91_MATRIX_EBI0CSA, - csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA); + csa = readl(&matrix->csa[0]) | AT91_MATRIX_CSA_EBI_CS3A; + writel(csa, &matrix->csa[0]); /* Configure SMC CS3 for NAND/SmartMedia */ - at91_sys_write(AT91_SMC_SETUP(3), - AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) | - AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0)); - at91_sys_write(AT91_SMC_PULSE(3), - AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) | - AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3)); - at91_sys_write(AT91_SMC_CYCLE(3), - AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5)); - at91_sys_write(AT91_SMC_MODE(3), - AT91_SMC_READMODE | AT91_SMC_WRITEMODE | - AT91_SMC_EXNWMODE_DISABLE | -#ifdef CONFIG_SYS_NAND_DBW_16 - AT91_SMC_DBW_16 | -#else /* CONFIG_SYS_NAND_DBW_8 */ - AT91_SMC_DBW_8 | -#endif - AT91_SMC_TDF_(2)); + writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) | + AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0), + &smc->cs[3].setup); + + writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) | + AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3), + &smc->cs[3].pulse); + + writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5), + &smc->cs[3].cycle); + writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | + AT91_SMC_MODE_EXNW_DISABLE | + AT91_SMC_MODE_DBW_8 | + AT91_SMC_MODE_TDF_CYCLE(2), + &smc->cs[3].mode); /* Configure RDY/BSY */ - at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); + at91_set_pio_input(CONFIG_SYS_NAND_READY_PIN, 1); /* Enable NandFlash */ - at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); + at91_set_pio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); } #endif /* CONFIG_CMD_NAND */ #ifdef CONFIG_MACB static void meesc_macb_hw_init(void) { + at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; /* Enable clock */ - at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_EMAC); + writel(1 << AT91SAM9263_ID_EMAC, &pmc->pcer); at91_macb_hw_init(); } #endif @@ -117,26 +117,27 @@ static void meesc_macb_hw_init(void) */ static void meesc_ethercat_hw_init(void) { + at91_smc_t *smc1 = (at91_smc_t *) AT91_SMC1_BASE; + /* Configure SMC EBI1_CS0 for EtherCAT */ - at91_sys_write(AT91_SMC1_SETUP(0), - AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) | - AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0)); - at91_sys_write(AT91_SMC1_PULSE(0), - AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(9) | - AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(9)); - at91_sys_write(AT91_SMC1_CYCLE(0), - AT91_SMC_NWECYCLE_(10) | AT91_SMC_NRDCYCLE_(5)); + writel(AT91_SMC_SETUP_NWE(0) | AT91_SMC_SETUP_NCS_WR(0) | + AT91_SMC_SETUP_NRD(0) | AT91_SMC_SETUP_NCS_RD(0), + &smc1->cs[0].setup); + writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(9) | + AT91_SMC_PULSE_NRD(5) | AT91_SMC_PULSE_NCS_RD(9), + &smc1->cs[0].pulse); + writel(AT91_SMC_CYCLE_NWE(10) | AT91_SMC_CYCLE_NRD(6), + &smc1->cs[0].cycle); /* * Configure behavior at external wait signal, byte-select mode, 16 bit * data bus width, none data float wait states and TDF optimization */ - at91_sys_write(AT91_SMC1_MODE(0), - AT91_SMC_READMODE | AT91_SMC_EXNWMODE_READY | - AT91_SMC_BAT_SELECT | AT91_SMC_DBW_16 | AT91_SMC_TDF_(0) | - AT91_SMC_TDFMODE); + writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_EXNW_READY | + AT91_SMC_MODE_DBW_16 | AT91_SMC_MODE_TDF_CYCLE(0) | + AT91_SMC_MODE_TDF, &smc1->cs[0].mode); /* Configure RDY/BSY */ - at91_set_B_periph(AT91_PIN_PE20, 0); /* EBI1_NWAIT */ + at91_set_b_periph(AT91_PIO_PORTE, 20, 0); /* EBI1_NWAIT */ } int dram_init(void) @@ -150,7 +151,7 @@ int board_eth_init(bd_t *bis) { int rc = 0; #ifdef CONFIG_MACB - rc = macb_eth_initialize(0, (void *)AT91SAM9263_BASE_EMAC, 0x00); + rc = macb_eth_initialize(0, (void *)AT91_EMAC_BASE, 0x00); #endif return rc; } @@ -175,7 +176,7 @@ int checkboard(void) gd->bd->bi_arch_number = MACH_TYPE_ETHERCAN2; puts("Board: EtherCAN/2 Gateway"); /* switch on LED1D */ - at91_set_gpio_output(AT91_PIN_PB12, 1); + at91_set_pio_output(AT91_PIO_PORTB, 12, 1); break; default: /* assume, no ET1100 present, arch number of EtherCAN/2-Board */ @@ -222,8 +223,9 @@ u32 get_board_rev(void) #ifdef CONFIG_MISC_INIT_R int misc_init_r(void) { - char *str; - char buf[32]; + char *str; + char buf[32]; + at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; /* * Normally the processor clock has a divisor of 2. @@ -231,10 +233,9 @@ int misc_init_r(void) * Check the user has set environment mdiv to 4 to change the divisor. */ if ((str = getenv("mdiv")) && (strcmp(str, "4") == 0)) { - at91_sys_write(AT91_PMC_MCKR, - (at91_sys_read(AT91_PMC_MCKR) & ~AT91_PMC_MDIV) | - AT91SAM9_PMC_MDIV_4); - at91_clock_init(0); + writel((readl(&pmc->mckr) & ~AT91_PMC_MDIV) | + AT91SAM9_PMC_MDIV_4, &pmc->mckr); + at91_clock_init(CONFIG_SYS_AT91_MAIN_CLOCK); serial_setbrg(); /* Notify the user that the clock is not default */ printf("Setting master clock to %s MHz\n", @@ -247,10 +248,13 @@ int misc_init_r(void) int board_init(void) { + at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + /* Peripheral Clock Enable Register */ - at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_PIOA | - 1 << AT91SAM9263_ID_PIOB | - 1 << AT91SAM9263_ID_PIOCDE); + writel(1 << AT91SAM9263_ID_PIOA | + 1 << AT91SAM9263_ID_PIOB | + 1 << AT91SAM9263_ID_PIOCDE, + &pmc->pcer); /* initialize ET1100 Controller */ meesc_ethercat_hw_init(); diff --git a/include/configs/meesc.h b/include/configs/meesc.h index dad0bef118f..eaea1cd9c3a 100644 --- a/include/configs/meesc.h +++ b/include/configs/meesc.h @@ -31,14 +31,12 @@ #ifndef __CONFIG_H #define __CONFIG_H -#define CONFIG_AT91_LEGACY - /* Common stuff */ -#define CONFIG_SYS_HZ 1000 /* decrementer freq */ #define CONFIG_MEESC 1 /* Board is esd MEESC */ #define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */ #define CONFIG_AT91SAM9263 1 /* It's an AT91SAM9263 SoC */ #define CONFIG_SYS_AT91_MAIN_CLOCK 16000000/* 16.0 MHz crystal */ +#define CONFIG_SYS_HZ 1000 /* decrementer freq */ #define CONFIG_DISPLAY_BOARDINFO 1 #define CONFIG_DISPLAY_CPUINFO 1 /* display cpu info and speed */ #define CONFIG_PREBOOT /* enable preboot variable */ @@ -122,9 +120,9 @@ #define CONFIG_SYS_NAND_MASK_ALE (1 << 21) /* our CLE is AD22 */ #define CONFIG_SYS_NAND_MASK_CLE (1 << 22) -#define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PD15 -#define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PA22 - +#define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIO_PORTD, 15 +#define CONFIG_SYS_NAND_READY_PIN AT91_PIO_PORTA, 22 +#define CONFIG_SYS_64BIT_VSPRINTF /* needed for nand_util.c */ #endif /* Ethernet */ -- cgit v1.3.1 From 64037fb453e569480ec3fc14500047a23a6b637e Mon Sep 17 00:00:00 2001 From: Daniel Gorsulowski Date: Mon, 9 Aug 2010 11:17:15 +0200 Subject: at91: Enabeling USB host on meesc board There was an redesign, so USB is available now. Signed-off-by: Daniel Gorsulowski Signed-off-by: Reinhard Meyer --- board/esd/meesc/meesc.c | 6 +++++- include/configs/meesc.h | 13 ++++++++++++- 2 files changed, 17 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/board/esd/meesc/meesc.c b/board/esd/meesc/meesc.c index 58ef7be5d08..41fa3e1567a 100644 --- a/board/esd/meesc/meesc.c +++ b/board/esd/meesc/meesc.c @@ -253,7 +253,8 @@ int board_init(void) /* Peripheral Clock Enable Register */ writel(1 << AT91SAM9263_ID_PIOA | 1 << AT91SAM9263_ID_PIOB | - 1 << AT91SAM9263_ID_PIOCDE, + 1 << AT91SAM9263_ID_PIOCDE | + 1 << AT91SAM9263_ID_UHP, &pmc->pcer); /* initialize ET1100 Controller */ @@ -274,6 +275,9 @@ int board_init(void) #endif #ifdef CONFIG_AT91_CAN at91_can_hw_init(); +#endif +#ifdef CONFIG_USB_OHCI_NEW + at91_uhp_hw_init(); #endif return 0; } diff --git a/include/configs/meesc.h b/include/configs/meesc.h index eaea1cd9c3a..dbb25314399 100644 --- a/include/configs/meesc.h +++ b/include/configs/meesc.h @@ -84,11 +84,11 @@ #undef CONFIG_CMD_FPGA #undef CONFIG_CMD_LOADS #undef CONFIG_CMD_IMLS -#undef CONFIG_CMD_USB #define CONFIG_CMD_PING 1 #define CONFIG_CMD_DHCP 1 #define CONFIG_CMD_NAND 1 +#define CONFIG_CMD_USB 1 /* LED */ #define CONFIG_AT91_LED 1 @@ -132,6 +132,17 @@ #define CONFIG_NET_RETRY_COUNT 20 #undef CONFIG_RESET_PHY_R +/* USB */ +#define CONFIG_USB_ATMEL +#define CONFIG_USB_OHCI_NEW 1 +#define CONFIG_DOS_PARTITION 1 +#define CONFIG_SYS_USB_OHCI_CPU_INIT 1 +#define CONFIG_SYS_USB_OHCI_REGS_BASE 0x00a00000 +#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91sam9263" +#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 2 +#define CONFIG_USB_STORAGE 1 +#define CONFIG_CMD_FAT 1 + #define CONFIG_SYS_LOAD_ADDR 0x22000000 /* load address */ #define CONFIG_SYS_MEMTEST_START PHYS_SDRAM -- cgit v1.3.1 From af4b8b4bdb37f49eb0bdf969a64341a8c65ccafa Mon Sep 17 00:00:00 2001 From: Eric Bénard Date: Mon, 9 Aug 2010 11:50:45 +0200 Subject: cpuat91: convert to new at91 soc architecture MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit convert the board to the new soc architecture update default config i2c upgrade taken from eb_cpux9k2.h & board/BuS/eb_cpux9k2/cpux9k2.c Signed-off-by: Eric Bénard Signed-off-by: Reinhard Meyer --- Makefile | 2 +- board/eukrea/cpuat91/cpuat91.c | 53 ++++++++++++++++++------------------------ include/configs/cpuat91.h | 45 ++++++++++++++++++++++++----------- 3 files changed, 54 insertions(+), 46 deletions(-) (limited to 'include') diff --git a/Makefile b/Makefile index 4f1cb1b4d1a..f9e0eb9e915 100644 --- a/Makefile +++ b/Makefile @@ -1883,7 +1883,7 @@ CPUAT91_RAM_config \ CPUAT91_config : unconfig @mkdir -p $(obj)include @echo "#define CONFIG_$(@:_config=) 1" >$(obj)include/config.h - @$(MKCONFIG) -n $@ -a cpuat91 arm arm920t cpuat91 eukrea at91rm9200 + @$(MKCONFIG) -n $@ -a cpuat91 arm arm920t cpuat91 eukrea at91 ######################################################################### ## ARM926EJ-S Systems diff --git a/board/eukrea/cpuat91/cpuat91.c b/board/eukrea/cpuat91/cpuat91.c index 0017962d420..cd4d42c6b79 100644 --- a/board/eukrea/cpuat91/cpuat91.c +++ b/board/eukrea/cpuat91/cpuat91.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2006 Eukrea Electromatique + * (C) Copyright 2006-2010 Eukrea Electromatique * Eric Benard * based on at91rm9200dk.c which is : * (C) Copyright 2002 @@ -27,13 +27,11 @@ #include #include -#include -#include -#if defined(CONFIG_DRIVER_ETHER) -#include -#include -#endif +#include +#include +#include +#include DECLARE_GLOBAL_DATA_PTR; @@ -61,31 +59,7 @@ int dram_init(void) return 0; } -#if defined(CONFIG_DRIVER_ETHER) -#if defined(CONFIG_CMD_NET) - -/* - * Name: - * at91rm9200_GetPhyInterface - * Description: - * Initialise the interface functions to the PHY - * Arguments: - * None - * Return value: - * None - */ -void at91rm9200_GetPhyInterface(AT91PS_PhyOps p_phyops) -{ - p_phyops->Init = ks8721_initphy; - p_phyops->IsPhyConnected = ks8721_isphyconnected; - p_phyops->GetLinkSpeed = ks8721_getlinkspeed; - p_phyops->AutoNegotiate = ks8721_autonegotiate; -} - -#endif /* CONFIG_CMD_NET */ -#endif /* CONFIG_DRIVER_ETHER */ #ifdef CONFIG_DRIVER_AT91EMAC - int board_eth_init(bd_t *bis) { int rc = 0; @@ -93,3 +67,20 @@ int board_eth_init(bd_t *bis) return rc; } #endif + +#ifdef CONFIG_SOFT_I2C +void i2c_init_board(void) +{ + u32 pin; + at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE; + + writel(1 << AT91_ID_PIOA, &pmc->pcer); + pin = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK; + writel(pin, &pio->pioa.idr); + writel(pin, &pio->pioa.pudr); + writel(pin, &pio->pioa.per); + writel(pin, &pio->pioa.oer); + writel(pin, &pio->pioa.sodr); +} +#endif diff --git a/include/configs/cpuat91.h b/include/configs/cpuat91.h index 049298cfa36..b0127826b88 100644 --- a/include/configs/cpuat91.h +++ b/include/configs/cpuat91.h @@ -1,5 +1,5 @@ /* - * CPUAT91 by (C) Copyright 2006 Eric Benard + * CPUAT91 by (C) Copyright 2006-2010 Eric Benard * eric@eukrea.com * * Configuration settings for the CPUAT91 board. @@ -23,15 +23,12 @@ * MA 02111-1307 USA */ -#ifndef __CONFIG_H -#define __CONFIG_H - -#define CONFIG_AT91_LEGACY +#ifndef _CONFIG_CPUAT91_H +#define _CONFIG_CPUAT91_H #ifdef CONFIG_CPUAT91_RAM #define CONFIG_SKIP_LOWLEVEL_INIT 1 #define CONFIG_SKIP_RELOCATE_UBOOT 1 -#define CONFIG_CPUAT91 1 #else #define CONFIG_BOOTDELAY 1 #endif @@ -43,6 +40,7 @@ #define CONFIG_ARM920T 1 #define CONFIG_AT91RM9200 1 +#define CONFIG_CPUAT91 1 #undef CONFIG_USE_IRQ #define USE_920T_MMU 1 @@ -89,16 +87,36 @@ #undef CONFIG_USART0 #undef CONFIG_USART1 -#define CONFIG_HARD_I2C 1 +#undef CONFIG_HARD_I2C +#define CONFIG_SOFT_I2C 1 +#define AT91_PIN_SDA (1<<25) +#define AT91_PIN_SCL (1<<26) + +#define CONFIG_SYS_I2C_INIT_BOARD 1 +#define CONFIG_SYS_I2C_SPEED 50000 +#define CONFIG_SYS_I2C_SLAVE 0 + +#define I2C_INIT i2c_init_board(); +#define I2C_ACTIVE writel(AT91_PMX_AA_TWD, &pio->pioa.mddr); +#define I2C_TRISTATE writel(AT91_PMX_AA_TWD, &pio->pioa.mder); +#define I2C_READ ((readl(&pio->pioa.pdsr) & AT91_PMX_AA_TWD) != 0) +#define I2C_SDA(bit) \ + if (bit) \ + writel(AT91_PMX_AA_TWD, &pio->pioa.sodr); \ + else \ + writel(AT91_PMX_AA_TWD, &pio->pioa.codr); +#define I2C_SCL(bit) \ + if (bit) \ + writel(AT91_PMX_AA_TWCK, &pio->pioa.sodr); \ + else \ + writel(AT91_PMX_AA_TWCK, &pio->pioa.codr); + +#define I2C_DELAY udelay(2500000/CONFIG_SYS_I2C_SPEED) -#if defined(CONFIG_HARD_I2C) -#define CONFIG_SYS_I2C_SPEED 50000 -#define CONFIG_SYS_I2C_SLAVE 0 #define CONFIG_SYS_I2C_EEPROM_ADDR 0x54 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1 #define CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW 1 #define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 10 -#endif #define CONFIG_BOOTP_BOOTFILESIZE 1 #define CONFIG_BOOTP_BOOTPATH 1 @@ -117,10 +135,8 @@ #undef CONFIG_CMD_LOADS #undef CONFIG_CMD_NFS -#if defined(CONFIG_HARD_I2C) #define CONFIG_CMD_EEPROM 1 #define CONFIG_CMD_I2C 1 -#endif #define CONFIG_NR_DRAM_BANKS 1 #define PHYS_SDRAM 0x20000000 @@ -148,6 +164,7 @@ #define PHYS_FLASH_1 0x10000000 #define CONFIG_SYS_FLASH_BASE PHYS_FLASH_1 #define CONFIG_SYS_MAX_FLASH_SECT 128 +#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT #if defined(CONFIG_CMD_USB) #define CONFIG_USB_OHCI_NEW 1 @@ -230,4 +247,4 @@ "flashboot=run ramargs;bootm 10040000\0" \ "netboot=run ramargs;tftpboot 21000000 cpuat91/uImage;" \ "bootm 21000000\0" -#endif /* __CONFIG_H */ +#endif /* _CONFIG_CPUAT91_H */ -- cgit v1.3.1 From 0ca6c526f61fd07190cda3e8328e6ea4e35a8d81 Mon Sep 17 00:00:00 2001 From: Eric Bénard Date: Mon, 9 Aug 2010 11:50:46 +0200 Subject: cpuat91: update defaut environement MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Eric Bénard Signed-off-by: Reinhard Meyer --- include/configs/cpuat91.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/configs/cpuat91.h b/include/configs/cpuat91.h index b0127826b88..9ef4523de42 100644 --- a/include/configs/cpuat91.h +++ b/include/configs/cpuat91.h @@ -223,7 +223,7 @@ "mtdparts=physmap-flash.0:" \ "128k(u-boot)ro," \ "128k(u-boot-env)," \ - "1408k(kernel)," \ + "1792k(kernel)," \ "-(rootfs)" #define CONFIG_BOOTARGS \ @@ -238,11 +238,11 @@ "1001FFFF; erase 10000000 1001FFFF; cp.b 21000000 " \ "10000000 ${filesize}\0" \ "flui=tftp 21000000 cpuat91/uImage; protect off 10040000 " \ - "1019ffff; erase 10040000 1019ffff; cp.b 21000000 " \ + "1019ffff; erase 10040000 101fffff; cp.b 21000000 " \ "10040000 ${filesize}\0" \ "flrfs=tftp 21000000 cpuat91/rootfs.jffs2; protect off " \ - "101a0000 10ffffff; erase 101a0000 10ffffff; cp.b " \ - "21000000 101A0000 ${filesize}\0" \ + "10200000 10ffffff; erase 10200000 10ffffff; cp.b " \ + "21000000 10200000 ${filesize}\0" \ "ramargs=setenv bootargs $(bootargs) $(mtdparts)\0" \ "flashboot=run ramargs;bootm 10040000\0" \ "netboot=run ramargs;tftpboot 21000000 cpuat91/uImage;" \ -- cgit v1.3.1 From 1592ef8596fffd937a30462eb15f1d64e237ae49 Mon Sep 17 00:00:00 2001 From: Reinhard Meyer Date: Fri, 13 Aug 2010 10:31:06 +0200 Subject: AT91: MCI: add SD/MMC driver using mmc framework Signed-off-by: Reinhard Meyer --- arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c | 21 ++ arch/arm/include/asm/arch-at91/at91_common.h | 1 + arch/arm/include/asm/arch-at91/clk.h | 5 + arch/arm/include/asm/arch-at91/hardware.h | 1 + doc/README.atmel_mci | 86 ++++++ drivers/mmc/Makefile | 5 +- drivers/mmc/atmel_mci.h | 48 ++- drivers/mmc/gen_atmel_mci.c | 353 ++++++++++++++++++++++ include/mmc.h | 15 +- 9 files changed, 530 insertions(+), 5 deletions(-) create mode 100644 doc/README.atmel_mci create mode 100644 drivers/mmc/gen_atmel_mci.c (limited to 'include') diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c index 77d49ab1c76..2d8848152a4 100644 --- a/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c +++ b/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c @@ -194,3 +194,24 @@ void at91_macb_hw_init(void) #endif } #endif + +#if defined(CONFIG_ATMEL_MCI) || defined(CONFIG_GENERIC_ATMEL_MCI) +void at91_mci_hw_init(void) +{ + at91_set_a_periph(AT91_PIO_PORTA, 8, 1); /* MCCK */ +#if defined(CONFIG_ATMEL_MCI_PORTB) + at91_set_b_periph(AT91_PIO_PORTA, 1, 1); /* MCCDB */ + at91_set_b_periph(AT91_PIO_PORTA, 0, 1); /* MCDB0 */ + at91_set_b_periph(AT91_PIO_PORTA, 5, 1); /* MCDB1 */ + at91_set_b_periph(AT91_PIO_PORTA, 4, 1); /* MCDB2 */ + at91_set_b_periph(AT91_PIO_PORTA, 3, 1); /* MCDB3 */ +#else + at91_set_a_periph(AT91_PIO_PORTA, 7, 1); /* MCCDA */ + at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* MCDA0 */ + at91_set_a_periph(AT91_PIO_PORTA, 9, 1); /* MCDA1 */ + at91_set_a_periph(AT91_PIO_PORTA, 10, 1); /* MCDA2 */ + at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* MCDA3 */ +#endif +} +#endif + diff --git a/arch/arm/include/asm/arch-at91/at91_common.h b/arch/arm/include/asm/arch-at91/at91_common.h index 01840eede41..0067190a20e 100644 --- a/arch/arm/include/asm/arch-at91/at91_common.h +++ b/arch/arm/include/asm/arch-at91/at91_common.h @@ -27,6 +27,7 @@ void at91_can_hw_init(void); void at91_macb_hw_init(void); +void at91_mci_hw_init(void); void at91_serial_hw_init(void); void at91_serial0_hw_init(void); void at91_serial1_hw_init(void); diff --git a/arch/arm/include/asm/arch-at91/clk.h b/arch/arm/include/asm/arch-at91/clk.h index f642dd99585..457e6c9b2b5 100644 --- a/arch/arm/include/asm/arch-at91/clk.h +++ b/arch/arm/include/asm/arch-at91/clk.h @@ -59,5 +59,10 @@ static inline unsigned long get_twi_clk_rate(unsigned int dev_id) return get_mck_clk_rate(); } +static inline unsigned long get_mci_clk_rate(void) +{ + return get_mck_clk_rate(); +} + int at91_clock_init(unsigned long main_clock); #endif /* __ASM_ARM_ARCH_CLK_H__ */ diff --git a/arch/arm/include/asm/arch-at91/hardware.h b/arch/arm/include/asm/arch-at91/hardware.h index 4ddb3155d7c..9f732a738e2 100644 --- a/arch/arm/include/asm/arch-at91/hardware.h +++ b/arch/arm/include/asm/arch-at91/hardware.h @@ -20,6 +20,7 @@ #include #elif defined(CONFIG_AT91SAM9260) || defined(CONFIG_AT91SAM9G20) #include +#define AT91_BASE_MCI AT91SAM9260_BASE_MCI #define AT91_BASE_SPI AT91SAM9260_BASE_SPI0 #define AT91_ID_UHP AT91SAM9260_ID_UHP #define AT91_PMC_UHP AT91SAM926x_PMC_UHP diff --git a/doc/README.atmel_mci b/doc/README.atmel_mci new file mode 100644 index 00000000000..18b1bdf7e5d --- /dev/null +++ b/doc/README.atmel_mci @@ -0,0 +1,86 @@ +How to use SD/MMC cards with Atmel SoCs having MCI hardware +----------------------------------------------------------- +2010-08-16 Reinhard Meyer + +This is a new approach to use Atmel MCI hardware with the +general MMC framework. Therefore it benefits from that +framework's abilities to handle SDHC Cards and the ability +to write blocks. + +- AT91SAM9XE512 (tested, will definitely work with XE128 and XE256) +- AT91SAM9260 (not tested, but MCI is to AT91SAM9XE) +- AT91SAM9G20 (not tested, should work) + +It should work with all other ATMEL devices that have MCI, +including AVR32. + +The generic driver does NOT assign port pins to the MCI block +nor does it start the MCI clock. This has to be handled in a +board/SoC specific manner before the driver is initialized: + +example: this is added to at91sam9260_devices.c: + +#if defined(CONFIG_ATMEL_MCI) || defined(CONFIG_GENERIC_ATMEL_MCI) +void at91_mci_hw_init(void) +{ + at91_set_a_periph(AT91_PIO_PORTA, 8, PUP); /* MCCK */ +#if defined(CONFIG_ATMEL_MCI_PORTB) + at91_set_b_periph(AT91_PIO_PORTA, 1, PUP); /* MCCDB */ + at91_set_b_periph(AT91_PIO_PORTA, 0, PUP); /* MCDB0 */ + at91_set_b_periph(AT91_PIO_PORTA, 5, PUP); /* MCDB1 */ + at91_set_b_periph(AT91_PIO_PORTA, 4, PUP); /* MCDB2 */ + at91_set_b_periph(AT91_PIO_PORTA, 3, PUP); /* MCDB3 */ +#else + at91_set_a_periph(AT91_PIO_PORTA, 7, PUP); /* MCCDA */ + at91_set_a_periph(AT91_PIO_PORTA, 6, PUP); /* MCDA0 */ + at91_set_a_periph(AT91_PIO_PORTA, 9, PUP); /* MCDA1 */ + at91_set_a_periph(AT91_PIO_PORTA, 10, PUP); /* MCDA2 */ + at91_set_a_periph(AT91_PIO_PORTA, 11, PUP); /* MCDA3 */ +#endif +} +#endif + +the board specific file need added: +... +#ifdef CONFIG_GENERIC_ATMEL_MCI +# include +#endif +... +#ifdef CONFIG_GENERIC_ATMEL_MCI +/* this is a weak define that we are overriding */ +int board_mmc_init(bd_t *bd) +{ + /* Enable clock */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_MCI); + at91_mci_hw_init(); + + /* This calls the atmel_mci_init in gen_atmel_mci.c */ + return atmel_mci_init((void *)AT91_BASE_MCI); +} + +/* this is a weak define that we are overriding */ +int board_mmc_getcd(u8 *cd, struct mmc *mmc) +{ + /* + * the only currently existing use of this function + * (fsl_esdhc.c) suggests this function must return + * *cs = TRUE if a card is NOT detected -> in most + * cases the value of the pin when the detect switch + * closes to GND + */ + *cd = at91_get_gpio_value (CONFIG_SYS_MMC_CD_PIN) ? 1 : 0; + return 0; +} + +#endif + +and the board definition files needs: + +/* SD/MMC card */ +#define CONFIG_MMC 1 +#define CONFIG_GENERIC_MMC 1 +#define CONFIG_GENERIC_ATMEL_MCI 1 +#define CONFIG_ATMEL_MCI_PORTB 1 /* Atmel XE-EK uses port B */ +#define CONFIG_SYS_MMC_CD_PIN AT91_PIN_PC9 +#define CONFIG_CMD_MMC 1 + diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 8dfd8a32ba6..6603d74294b 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -25,12 +25,13 @@ include $(TOPDIR)/config.mk LIB := $(obj)libmmc.a -COBJS-$(CONFIG_GENERIC_MMC) += mmc.o COBJS-$(CONFIG_ATMEL_MCI) += atmel_mci.o COBJS-$(CONFIG_BFIN_SDH) += bfin_sdh.o -COBJS-$(CONFIG_OMAP3_MMC) += omap3_mmc.o COBJS-$(CONFIG_FSL_ESDHC) += fsl_esdhc.o +COBJS-$(CONFIG_GENERIC_MMC) += mmc.o +COBJS-$(CONFIG_GENERIC_ATMEL_MCI) += gen_atmel_mci.o COBJS-$(CONFIG_MXC_MMC) += mxcmmc.o +COBJS-$(CONFIG_OMAP3_MMC) += omap3_mmc.o COBJS-$(CONFIG_PXA_MMC) += pxa_mmc.o COBJS-$(CONFIG_S5P_MMC) += s5p_mmc.o diff --git a/drivers/mmc/atmel_mci.h b/drivers/mmc/atmel_mci.h index 5b4f5c99b6d..823a77d91b3 100644 --- a/drivers/mmc/atmel_mci.h +++ b/drivers/mmc/atmel_mci.h @@ -22,7 +22,45 @@ #ifndef __CPU_AT32AP_ATMEL_MCI_H__ #define __CPU_AT32AP_ATMEL_MCI_H__ -/* Atmel MultiMedia Card Interface (MCI) registers */ +#ifndef __ASSEMBLY__ + +/* + * Structure for struct SoC access. + * Names starting with '_' are fillers. + */ +typedef struct atmel_mci { + /* reg Offset */ + u32 cr; /* 0x00 */ + u32 mr; /* 0x04 */ + u32 dtor; /* 0x08 */ + u32 sdcr; /* 0x0c */ + u32 argr; /* 0x10 */ + u32 cmdr; /* 0x14 */ + u32 _18; /* 0x18 */ + u32 _1c; /* 0x1c */ + u32 rspr; /* 0x20 */ + u32 rspr1; /* 0x24 */ + u32 rspr2; /* 0x28 */ + u32 rspr3; /* 0x2c */ + u32 rdr; /* 0x30 */ + u32 tdr; /* 0x34 */ + u32 _38; /* 0x38 */ + u32 _3c; /* 0x3c */ + u32 sr; /* 0x40 */ + u32 ier; /* 0x44 */ + u32 idr; /* 0x48 */ + u32 imr; /* 0x4c */ +} atmel_mci_t; + +#endif /* __ASSEMBLY__ */ + +/* + * NOTICE: Use of registers offsets is depreciated. + * These defines will be removed once the old driver + * is taken out of commision. + * + * Atmel MultiMedia Card Interface (MCI) registers + */ #define MMCI_CR 0x0000 #define MMCI_MR 0x0004 #define MMCI_DTOR 0x0008 @@ -192,7 +230,13 @@ << MMCI_##name##_OFFSET)) \ | MMCI_BF(name,value)) -/* Register access macros */ +/* + * NOTICE: Use of registers offsets is depreciated. + * These defines will be removed once the old driver + * is taken out of commision. + * + * Register access macros + */ #define mmci_readl(reg) \ readl((void *)MMCI_BASE + MMCI_##reg) #define mmci_writel(reg,value) \ diff --git a/drivers/mmc/gen_atmel_mci.c b/drivers/mmc/gen_atmel_mci.c new file mode 100644 index 00000000000..fa4df9943a7 --- /dev/null +++ b/drivers/mmc/gen_atmel_mci.c @@ -0,0 +1,353 @@ +/* + * Copyright (C) 2010 + * Rob Emanuele + * Reinhard Meyer, EMK Elektronik + * + * Original Driver: + * Copyright (C) 2004-2006 Atmel Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "atmel_mci.h" + +#ifndef CONFIG_SYS_MMC_CLK_OD +# define CONFIG_SYS_MMC_CLK_OD 150000 +#endif + +#define MMC_DEFAULT_BLKLEN 512 + +#if defined(CONFIG_ATMEL_MCI_PORTB) +# define MCI_BUS 1 +#else +# define MCI_BUS 0 +#endif + +static int initialized = 0; + +/* + * Print command and status: + * + * - always when DEBUG is defined + * - on command errors + */ +static void dump_cmd(u32 cmdr, u32 arg, u32 status, const char* msg) +{ + printf("gen_atmel_mci: CMDR %08x (%2u) ARGR %08x (SR: %08x) %s\n", + cmdr, cmdr&0x3F, arg, status, msg); +} + +/* Setup for MCI Clock and Block Size */ +static void mci_set_mode(struct mmc *mmc, u32 hz, u32 blklen) +{ + atmel_mci_t *mci = (atmel_mci_t *)mmc->priv; + u32 bus_hz = get_mci_clk_rate(); + u32 clkdiv = 255; + + debug("mci: bus_hz is %u, setting clock %u Hz, block size %u\n", + bus_hz, hz, blklen); + if (hz > 0) { + /* find lowest clkdiv yielding a rate <= than requested */ + for (clkdiv=0; clkdiv<255; clkdiv++) { + if ((bus_hz / (clkdiv+1) / 2) <= hz) + break; + } + } + printf("mci: setting clock %u Hz, block size %u\n", + (bus_hz / (clkdiv+1)) / 2, blklen); + + blklen &= 0xfffc; + /* On some platforms RDPROOF and WRPROOF are ignored */ + writel((MMCI_BF(CLKDIV, clkdiv) + | MMCI_BF(BLKLEN, blklen) + | MMCI_BIT(RDPROOF) + | MMCI_BIT(WRPROOF)), &mci->mr); + initialized = 1; +} + +/* Return the CMDR with flags for a given command and data packet */ +static u32 mci_encode_cmd( + struct mmc_cmd *cmd, struct mmc_data *data, u32* error_flags) +{ + u32 cmdr = 0; + + /* Default Flags for Errors */ + *error_flags |= (MMCI_BIT(DTOE) | MMCI_BIT(RDIRE) | MMCI_BIT(RENDE) | + MMCI_BIT(RINDE) | MMCI_BIT(RTOE)); + + /* Default Flags for the Command */ + cmdr |= MMCI_BIT(MAXLAT); + + if (data) { + cmdr |= MMCI_BF(TRCMD, 1); + if (data->blocks > 1) + cmdr |= MMCI_BF(TRTYP, 1); + if (data->flags & MMC_DATA_READ) + cmdr |= MMCI_BIT(TRDIR); + } + + if (cmd->resp_type & MMC_RSP_CRC) + *error_flags |= MMCI_BIT(RCRCE); + if (cmd->resp_type & MMC_RSP_136) + cmdr |= MMCI_BF(RSPTYP, 2); + else if (cmd->resp_type & MMC_RSP_BUSY) + cmdr |= MMCI_BF(RSPTYP, 3); + else if (cmd->resp_type & MMC_RSP_PRESENT) + cmdr |= MMCI_BF(RSPTYP, 1); + + return cmdr | MMCI_BF(CMDNB, cmd->cmdidx); +} + +/* Entered into function pointer in mci_send_cmd */ +static u32 mci_data_read(atmel_mci_t *mci, u32* data, u32 error_flags) +{ + u32 status; + + do { + status = readl(&mci->sr); + if (status & (error_flags | MMCI_BIT(OVRE))) + goto io_fail; + } while (!(status & MMCI_BIT(RXRDY))); + + if (status & MMCI_BIT(RXRDY)) { + *data = readl(&mci->rdr); + status = 0; + } +io_fail: + return status; +} + +/* Entered into function pointer in mci_send_cmd */ +static u32 mci_data_write(atmel_mci_t *mci, u32* data, u32 error_flags) +{ + u32 status; + + do { + status = readl(&mci->sr); + if (status & (error_flags | MMCI_BIT(UNRE))) + goto io_fail; + } while (!(status & MMCI_BIT(TXRDY))); + + if (status & MMCI_BIT(TXRDY)) { + writel(*data, &mci->tdr); + status = 0; + } +io_fail: + return status; +} + +/* + * Entered into mmc structure during driver init + * + * Sends a command out on the bus and deals with the block data. + * Takes the mmc pointer, a command pointer, and an optional data pointer. + */ +static int +mci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) +{ + atmel_mci_t *mci = (atmel_mci_t *)mmc->priv; + u32 cmdr; + u32 error_flags = 0; + u32 status; + + if (!initialized) { + puts ("MCI not initialized!\n"); + return COMM_ERR; + } + + /* Figure out the transfer arguments */ + cmdr = mci_encode_cmd(cmd, data, &error_flags); + + /* Send the command */ + writel(cmd->cmdarg, &mci->argr); + writel(cmdr, &mci->cmdr); + +#ifdef DEBUG + dump_cmd(cmdr, cmd->cmdarg, 0, "DEBUG"); +#endif + + /* Wait for the command to complete */ + while (!((status = readl(&mci->sr)) & MMCI_BIT(CMDRDY))); + + if (status & error_flags) { + dump_cmd(cmdr, cmd->cmdarg, status, "Command Failed"); + return COMM_ERR; + } + + /* Copy the response to the response buffer */ + if (cmd->resp_type & MMC_RSP_136) { + cmd->response[0] = readl(&mci->rspr); + cmd->response[1] = readl(&mci->rspr1); + cmd->response[2] = readl(&mci->rspr2); + cmd->response[3] = readl(&mci->rspr3); + } else + cmd->response[0] = readl(&mci->rspr); + + /* transfer all of the blocks */ + if (data) { + u32 word_count, block_count; + u32* ioptr; + u32 sys_blocksize, dummy, i; + u32 (*mci_data_op) + (atmel_mci_t *mci, u32* data, u32 error_flags); + + if (data->flags & MMC_DATA_READ) { + mci_data_op = mci_data_read; + sys_blocksize = mmc->read_bl_len; + ioptr = (u32*)data->dest; + } else { + mci_data_op = mci_data_write; + sys_blocksize = mmc->write_bl_len; + ioptr = (u32*)data->src; + } + + status = 0; + for (block_count = 0; + block_count < data->blocks && !status; + block_count++) { + word_count = 0; + do { + status = mci_data_op(mci, ioptr, error_flags); + word_count++; + ioptr++; + } while (!status && word_count < (data->blocksize/4)); +#ifdef DEBUG + if (data->flags & MMC_DATA_READ) + { + printf("Read Data:\n"); + print_buffer(0, data->dest, 1, + word_count*4, 0); + } +#endif +#ifdef DEBUG + if (!status && word_count < (sys_blocksize / 4)) + printf("filling rest of block...\n"); +#endif + /* fill the rest of a full block */ + while (!status && word_count < (sys_blocksize / 4)) { + status = mci_data_op(mci, &dummy, + error_flags); + word_count++; + } + if (status) { + dump_cmd(cmdr, cmd->cmdarg, status, + "Data Transfer Failed"); + return COMM_ERR; + } + } + + /* Wait for Transfer End */ + i = 0; + do { + status = readl(&mci->sr); + + if (status & error_flags) { + dump_cmd(cmdr, cmd->cmdarg, status, + "DTIP Wait Failed"); + return COMM_ERR; + } + i++; + } while ((status & MMCI_BIT(DTIP)) && i < 10000); + if (status & MMCI_BIT(DTIP)) { + dump_cmd(cmdr, cmd->cmdarg, status, + "XFER DTIP never unset, ignoring"); + } + } + + return 0; +} + +/* Entered into mmc structure during driver init */ +static void mci_set_ios(struct mmc *mmc) +{ + atmel_mci_t *mci = (atmel_mci_t *)mmc->priv; + int busw = (mmc->bus_width == 4) ? 1 : 0; + + /* Set the clock speed */ + mci_set_mode(mmc, mmc->clock, MMC_DEFAULT_BLKLEN); + + /* + * set the bus width and select slot for this interface + * there is no capability for multiple slots on the same interface yet + * Bitfield SCDBUS needs to be expanded to 2 bits for 8-bit buses + */ + writel(MMCI_BF(SCDBUS, busw) | MMCI_BF(SCDSEL, MCI_BUS), &mci->sdcr); +} + +/* Entered into mmc structure during driver init */ +static int mci_init(struct mmc *mmc) +{ + atmel_mci_t *mci = (atmel_mci_t *)mmc->priv; + + /* Initialize controller */ + writel(MMCI_BIT(SWRST), &mci->cr); /* soft reset */ + writel(MMCI_BIT(PWSDIS), &mci->cr); /* disable power save */ + writel(MMCI_BIT(MCIEN), &mci->cr); /* enable mci */ + + /* Initial Time-outs */ + writel(0x5f, &mci->dtor); + /* Disable Interrupts */ + writel(~0UL, &mci->idr); + + /* Set default clocks and blocklen */ + mci_set_mode(mmc, CONFIG_SYS_MMC_CLK_OD, MMC_DEFAULT_BLKLEN); + + return 0; +} + +/* + * This is the only exported function + * + * Call it with the MCI register base address + */ +int atmel_mci_init(void *regs) +{ + struct mmc *mmc = malloc(sizeof(struct mmc)); + + if (!mmc) + return -1; + strcpy(mmc->name, "mci"); + mmc->priv = regs; + mmc->send_cmd = mci_send_cmd; + mmc->set_ios = mci_set_ios; + mmc->init = mci_init; + + /* need to be able to pass these in on a board by board basis */ + mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34; + mmc->host_caps = MMC_MODE_4BIT; + /* + * min and max frequencies determined by + * max and min of clock divider + */ + mmc->f_min = get_mci_clk_rate() / (2*256); + mmc->f_max = get_mci_clk_rate() / (2*1); + + mmc_register(mmc); + + return 0; +} diff --git a/include/mmc.h b/include/mmc.h index fcb237e81e4..9f94f423fbf 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -179,6 +179,16 @@ struct mmc_cid { char pnm[7]; }; +/* + * WARNING! + * + * This structure is used by atmel_mci.c only. + * It works for the AVR32 architecture but NOT + * for ARM/AT91 architectures. + * Its use is highly depreciated. + * After the atmel_mci.c driver for AVR32 has + * been replaced this structure will be removed. + */ struct mmc_csd { u8 csd_structure:2, @@ -275,7 +285,10 @@ int mmc_set_dev(int dev_num); void print_mmc_devices(char separator); int board_mmc_getcd(u8 *cd, struct mmc *mmc); -#ifndef CONFIG_GENERIC_MMC +#ifdef CONFIG_GENERIC_MMC +int atmel_mci_init(void *regs); +#else int mmc_legacy_init(int verbose); #endif + #endif /* _MMC_H_ */ -- cgit v1.3.1