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imx233/fuze+: add SD detection support

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30196 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Amaury Pouly 2011-07-22 15:45:58 +00:00
parent 85c32dbd12
commit 82f70b8efd
6 changed files with 164 additions and 27 deletions
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10
firmware/target/arm/imx233/ssp-imx233.h
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@ -27,6 +27,7 @@
#include "cpu.h"
#include "system.h"
#include "system-target.h"
#include "pinctrl-imx233.h"
/* ssp can value 1 or 2 */
#define __SSP_SELECT(ssp, ssp1, ssp2) ((ssp) == 1 ? (ssp1) : (ssp2))
@ -122,6 +123,7 @@
#define HW_SSP_STATUS__RESP_TIMEOUT (1 << 14)
#define HW_SSP_STATUS__RESP_ERR (1 << 15)
#define HW_SSP_STATUS__RESP_CRC_ERR (1 << 16)
#define HW_SSP_STATUS__CARD_DETECT (1 << 28)
#define HW_SSP_STATUS__ALL_ERRORS 0x1f800
#define HW_SSP_DEBUG(ssp) (*(volatile uint32_t *)(HW_SSP_BASE(ssp) + 0x100))
@ -142,6 +144,8 @@ enum imx233_ssp_resp_t
SSP_LONG_RESP
};
typedef void (*ssp_detect_cb_t)(int ssp);
void imx233_ssp_init(void);
void imx233_ssp_start(int ssp);
void imx233_ssp_stop(int ssp);
@ -156,8 +160,14 @@ void imx233_ssp_set_block_size(int ssp, unsigned log_block_size);
enum imx233_ssp_error_t imx233_ssp_sd_mmc_transfer(int ssp, uint8_t cmd,
uint32_t cmd_arg, enum imx233_ssp_resp_t resp, void *buffer, unsigned block_count,
bool wait4irq, bool read, uint32_t *resp_ptr);
void imx233_ssp_setup_ssp1_sd_mmc_pins(bool enable_pullups, unsigned bus_width,
unsigned drive_strength, bool use_alt);
void imx233_ssp_setup_ssp2_sd_mmc_pins(bool enable_pullups, unsigned bus_width,
unsigned drive_strength);
/* after callback is fired, imx233_ssp_sdmmc_setup_detect needs to be called
* to enable detection again */
void imx233_ssp_sdmmc_setup_detect(int ssp, bool enable, ssp_detect_cb_t fn);
bool imx233_ssp_sdmmc_detect(int ssp);
/* SD/MMC requires that the card be provided the clock during an init sequence of
* at least 1msec (or 74 clocks). Does NOT touch the clock so it has to be correct. */
void imx233_ssp_sd_mmc_power_up_sequence(int ssp);