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mxs: mmc: mx23_olinuxino: Add MMC support

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Add support for the MMC attached to SSP1.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Marek Vasut 2013-01-22 15:01:05 +00:00 • committed by Stefano Babic
parent e5b380ac68
commit 13b1ebdec6
3 changed files with 42 additions and 1 deletions
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22
board/olimex/mx23_olinuxino/mx23_olinuxino.c
View file

@ -23,7 +23,10 @@
*/ */
#include <common.h> #include <common.h>
#include <asm/io.h>
#include <asm/arch/iomux-mx23.h>
#include <asm/arch/imx-regs.h> #include <asm/arch/imx-regs.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h> #include <asm/arch/sys_proto.h>
DECLARE_GLOBAL_DATA_PTR; DECLARE_GLOBAL_DATA_PTR;
@ -33,7 +36,12 @@ DECLARE_GLOBAL_DATA_PTR;
*/ */
int board_early_init_f(void) int board_early_init_f(void)
{ {
/* SSP clock init will come here soon. */ /* IO0 clock at 480MHz */
mxs_set_ioclk(MXC_IOCLK0, 480000);
/* SSP0 clock at 96MHz */
mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
return 0; return 0;
} }
@ -42,6 +50,18 @@ int dram_init(void)
return mxs_dram_init(); return mxs_dram_init();
} }
#ifdef CONFIG_CMD_MMC
static int mx23_olx_mmc_cd(int id)
{
return 1; /* Card always present */
}
int board_mmc_init(bd_t *bis)
{
return mxsmmc_initialize(bis, 0, NULL, mx23_olx_mmc_cd);
}
#endif
int board_init(void) int board_init(void)
{ {
/* Adress of boot parameters */ /* Adress of boot parameters */

9
board/olimex/mx23_olinuxino/spl_boot.c
View file

@ -30,6 +30,7 @@
#include <asm/arch/sys_proto.h> #include <asm/arch/sys_proto.h>
#define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_16MA | MXS_PAD_PULLUP) #define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_16MA | MXS_PAD_PULLUP)
#define MUX_CONFIG_SSP (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP)
const iomux_cfg_t iomux_setup[] = { const iomux_cfg_t iomux_setup[] = {
/* DUART */ /* DUART */
@ -82,6 +83,14 @@ const iomux_cfg_t iomux_setup[] = {
MX23_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI, MX23_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI,
MX23_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI, MX23_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI,
MX23_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI, MX23_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI,
/* MMC 0 */
MX23_PAD_SSP1_CMD__SSP1_CMD | MUX_CONFIG_SSP,
MX23_PAD_SSP1_DATA0__SSP1_DATA0 | MUX_CONFIG_SSP,
MX23_PAD_SSP1_DATA1__SSP1_DATA1 | MUX_CONFIG_SSP,
MX23_PAD_SSP1_DATA2__SSP1_DATA2 | MUX_CONFIG_SSP,
MX23_PAD_SSP1_DATA3__SSP1_DATA3 | MUX_CONFIG_SSP,
MX23_PAD_SSP1_SCK__SSP1_SCK | MUX_CONFIG_SSP,
}; };
void board_init_ll(void) void board_init_ll(void)

12
include/configs/mx23_olinuxino.h
View file

@ -53,8 +53,10 @@
#define CONFIG_DOS_PARTITION #define CONFIG_DOS_PARTITION
#define CONFIG_CMD_CACHE #define CONFIG_CMD_CACHE
#define CONFIG_CMD_EXT2
#define CONFIG_CMD_FAT #define CONFIG_CMD_FAT
#define CONFIG_CMD_GPIO #define CONFIG_CMD_GPIO
#define CONFIG_CMD_MMC
/* /*
* Memory configurations * Memory configurations
@ -109,6 +111,16 @@
#define CONFIG_CONS_INDEX 0 #define CONFIG_CONS_INDEX 0
#define CONFIG_BAUDRATE 115200 /* Default baud rate */ #define CONFIG_BAUDRATE 115200 /* Default baud rate */
/*
* MMC Driver
*/
#ifdef CONFIG_CMD_MMC
#define CONFIG_MMC
#define CONFIG_BOUNCE_BUFFER
#define CONFIG_GENERIC_MMC
#define CONFIG_MXS_MMC
#endif
/* /*
* APBH DMA * APBH DMA
*/ */