diff --git a/arch/arm/src/lpc43xx/lpc43_sdmmc.c b/arch/arm/src/lpc43xx/lpc43_sdmmc.c index 46f678d1066..b10b742b1b4 100644 --- a/arch/arm/src/lpc43xx/lpc43_sdmmc.c +++ b/arch/arm/src/lpc43xx/lpc43_sdmmc.c @@ -65,6 +65,7 @@ #include "up_arch.h" +#include "chip/lpc43_pinconfig.h" #include "lpc43_cgu.h" #include "lpc43_ccu.h" #include "lpc43_gpio.h" diff --git a/configs/bambino-200e/include/board.h b/configs/bambino-200e/include/board.h index 4151e4f6419..ea094059fa1 100644 --- a/configs/bambino-200e/include/board.h +++ b/configs/bambino-200e/include/board.h @@ -141,6 +141,8 @@ #endif +#define BOARD_MAIN_CLK BOARD_FCCO_FREQUENCY /* Main clock frequency */ + /* This is the clock setup we configure for: * * SYSCLK = BOARD_OSCCLK_FREQUENCY = 12MHz -> Select Main oscillator for source @@ -179,6 +181,10 @@ #define BOARD_SSP1_CLKSRC BASE_SSP1_CLKSEL_IDIVA #define BOARD_SSP1_BASEFREQ BOARD_IDIVA_FREQUENCY +/* SDIO Clocking */ + +#define BOARD_SDIO_CLKSRC BASE_SDIO_CLKSEL_PLL1 + /* USB0 ********************************************************************/ /* Settings needed in lpc43_cpu.c */ @@ -218,6 +224,41 @@ # define BOARD_SPIFI_FREQUENCY (102000000) /* 204MHz / 14 = 14.57MHz */ #endif +/* SD/MMC or SDIO interface + * + * NOTE: The SDIO function clock to the interface can be up to 50 MHZ. + * Example: BOARD_MAIN_CLK=220MHz, CLKDIV=5, Finput=44MHz. + */ + +#define BOARD_SDMMC_MAXFREQ 50000000 +#define BOARD_SDMMC_CEIL(a,b) (((a) + (b) - 1) / (b)) + +#define BOARD_SDMMC_CLKDIV BOARD_SDMMC_CEIL(BOARD_MAIN_CLK, BOARD_SDMMC_MAXFREQ) +#define BOARD_SDMMC_FREQUENCY (BOARD_MAIN_CLK / BOARD_SDMMC_CLKDIV) + +/* Mode-dependent function clock division + * + * Example: BOARD_SDMMC_FREQUENCY=44MHz + * BOARD_CLKDIV_INIT=110, Fsdmmc=400KHz (400KHz max) + * BOARD_CLKDIV_MMCXFR=4[3], Fsdmmc=11Mhz (20MHz max) See NOTE: + * BOARD_CLKDIV_SDWIDEXFR=2, Fsdmmc=22MHz (25MHz max) + * BOARD_CLKDIV_SDXFR=2, Fsdmmc=22MHz (25MHz max) + * + * NOTE: *lock division is 2*n. For example, value of 0 means divide by + * 2 * 0 = 0 (no division, bypass), value of 1 means divide by 2 * 1 = 2, value + * of 255 means divide by 2 * 255 = 510, and so on. + * + * SD/MMC logic will write the value ((clkdiv + 1) >> 1) as the divisor. So an + * odd value calculated below will be moved up to next higher divider value. So + * the value 3 will cause 2 to be written as the divider value and the effective + * divider will be 4. + */ + +#define BOARD_CLKDIV_INIT BOARD_SDMMC_CEIL(BOARD_SDMMC_FREQUENCY, 400000) +#define BOARD_CLKDIV_MMCXFR BOARD_SDMMC_CEIL(BOARD_SDMMC_FREQUENCY, 20000000) +#define BOARD_CLKDIV_SDWIDEXFR BOARD_SDMMC_CEIL(BOARD_SDMMC_FREQUENCY, 25000000) +#define BOARD_CLKDIV_SDXFR BOARD_SDMMC_CEIL(BOARD_SDMMC_FREQUENCY, 25000000) + /* UART clocking ***********************************************************/ /* Configure all U[S]ARTs to use the XTAL input frequency */ @@ -315,4 +356,14 @@ #define GPIO_ENET_RESET (GPIO_MODE_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT0 | GPIO_PIN4) #define PINCONF_ENET_MDC PINCONF_ENET_MDC_3 +/* SD/MMC pinout */ + +#define GPIO_SD_CARD_DET_N PINCONF_SD_CD_1 +#define GPIO_SD_D0 PINCONF_SD_DAT0_1 +#define GPIO_SD_D1 PINCONF_SD_DAT1_1 +#define GPIO_SD_D2 PINCONF_SD_DAT2_1 +#define GPIO_SD_D3 PINCONF_SD_DAT3_1 +#define GPIO_SD_CMD PINCONF_SD_CMD_1 +#define GPIO_SD_CLK CLKCONF_SD_CLK_2 + #endif /* __CONFIG_BAMBINO_200E_INCLUDE_BOARD_H */ diff --git a/configs/bambino-200e/src/bambino-200e.h b/configs/bambino-200e/src/bambino-200e.h index 9a0b8568014..b8805955f8b 100644 --- a/configs/bambino-200e/src/bambino-200e.h +++ b/configs/bambino-200e/src/bambino-200e.h @@ -51,6 +51,8 @@ * Pre-processor Definitions ****************************************************************************/ +#define HAVE_MMCSD 1 + /**************************************************************************** * LEDs GPIO PIN SIGNAL NAME * -------------------------------- ------- -------------- @@ -99,6 +101,36 @@ # endif #endif +/* MMC/SD support */ + +#ifdef CONFIG_LPC43_SDMMC + +# ifndef CONFIG_MMCSD +# warning MMC/SD support requires CONFIG_MMCSD +# undef HAVE_MMCSD +# endif + +# ifndef CONFIG_MMCSD_SDIO +# warning MMC/SD support requires CONFIG_MMCSD_SDIO +# undef HAVE_MMCSD +# endif + +# ifdef CONFIG_DISABLE_MOUNTPOINT +# warning MMC/SD cannot be supported with CONFIG_DISABLE_MOUNTPOINT +# undef HAVE_MMCSD +# endif + +# ifdef CONFIG_NSH_MMCSDMINOR +# define MMCSD_MINOR CONFIG_NSH_MMCSDMINOR +# else +# define MMCSD_MINOR 0 +# endif + +#else +# undef HAVE_MMCSD +#endif + + /**************************************************************************** * Public Types ****************************************************************************/ diff --git a/configs/bambino-200e/src/lpc43_appinit.c b/configs/bambino-200e/src/lpc43_appinit.c index c00e4979324..6e1efa0b336 100644 --- a/configs/bambino-200e/src/lpc43_appinit.c +++ b/configs/bambino-200e/src/lpc43_appinit.c @@ -58,6 +58,12 @@ # endif #endif +#ifdef CONFIG_LPC43_SDMMC +# include +# include +# include "lpc43_sdmmc.h" +#endif + #include "bambino-200e.h" /**************************************************************************** @@ -162,15 +168,42 @@ static int nsh_spifi_initialize(void) int board_app_initialize(uintptr_t arg) { +#ifdef HAVE_MMCSD + struct sdio_dev_s *sdmmc; +#endif + int ret = 0; + /* Initialize the SPIFI block device */ (void)nsh_spifi_initialize(); +#ifdef HAVE_MMCSD + /* Get an instance of the SDIO interface */ + + sdmmc = lpc43_sdmmc_initialize(0); + if (!sdmmc) + { + syslog(LOG_ERR, "ERROR: Failed to initialize SD/MMC\n"); + } + else + { + /* Bind the SDIO interface to the MMC/SD driver */ + + ret = mmcsd_slotinitialize(MMCSD_MINOR, sdmmc); + if (ret != OK) + { + syslog(LOG_ERR, + "ERROR: Failed to bind SDIO to the MMC/SD driver: %d\n", + ret); + } + } +#endif + #ifdef CONFIG_TIMER /* Registers the timers */ lpc43_timerinitialize(); #endif - return 0; + return ret; }