/* init mmc/sd card we assume that the card is in the slot */
static int mmc_init(unsigned int msc_clkrt_val)
{
int retries, ret;
u8 *resp;
//unsigned int msc_clk_div = (__cpm_get_pllout())/24000000;
__msc_reset();
mmc_init_gpio();
REG_MSC_IMASK = 0xffff;
REG_MSC_IREG = 0xffff;
REG_MSC_CLKRT = 6; //200k
/* just for reading and writing, suddenly it was reset, and the power of sd card was not broken off */
resp = mmc_cmd(12, 0, 0x41, MSC_CMDAT_RESPONSE_R1);
/* reset */
resp = mmc_cmd(0, 0, 0x80, 0);
resp = mmc_cmd(8, 0x1aa, 0x1, MSC_CMDAT_RESPONSE_R1);
resp = mmc_cmd(55, 0, 0x1, MSC_CMDAT_RESPONSE_R1);
if(resp[5] == 0x37) {
resp = mmc_cmd(41, 0x40ff8000, 0x3, MSC_CMDAT_RESPONSE_R3);
if(resp[5] == 0x3f)
ret = sd_init(msc_clkrt_val);
return ret;
}
ret = mmc_found(msc_clkrt_val);
return ret;
}
static void sd_init(void)
{
if (ctl_num == 0)
__gpio_a_as_msc0_1bit();
else
__gpio_e_as_msc1_4bit();
__msc_reset(ctl_num);
MMC_IRQ_MASK();
MMC_TO();
}
/* init mmc/sd card we assume that the card is in the slot */
static int mmc_init(void)
{
int retries;
u8 *resp;
__gpio_as_msc();
__msc_reset();
MMC_IRQ_MASK();
REG_CPM_MSCCDR = __cpm_get_pllout2()%24000000 ? __cpm_get_pllout2()/24000000 : __cpm_get_pllout2()/24000000 - 1;
REG_CPM_CPCCR |= CPM_CPCCR_CE;
REG_MSC_CLKRT = 7; //250k
REG_MSC_RDTO = 0xffffffff;
resp = mmc_cmd(12, 0, 0x41, MSC_CMDAT_RESPONSE_R1);
/* reset */
resp = mmc_cmd(0, 0, 0x80, 0);
resp = mmc_cmd(8, 0x1aa, 0x1, MSC_CMDAT_RESPONSE_R1);
resp = mmc_cmd(55, 0, 0x1, MSC_CMDAT_RESPONSE_R1);
if(!(resp[0] & 0x20) && (resp[5] != 0x37)) {
resp = mmc_cmd(1, 0x40ff8000, 0x3, MSC_CMDAT_RESPONSE_R3);
retries = 500;
while (retries-- && resp && !(resp[4] & 0x80)) {
resp = mmc_cmd(1, 0x40300000, 0x3, MSC_CMDAT_RESPONSE_R3);
udelay(1000);
udelay(1000);
}
if ((resp[4] & 0x80 ) == 0x80)
serial_puts("MMC init ok\n");
else
serial_puts("MMC init fail\n");
if((resp[4] & 0x60) == 0x40)
highcap = 1;
else
highcap = 0;
/* try to get card id */
resp = mmc_cmd(2, 0, 0x2, MSC_CMDAT_RESPONSE_R2);
resp = mmc_cmd(3, 0x10, 0x1, MSC_CMDAT_RESPONSE_R1);
REG_MSC_CLKRT = 2; /* 16/1 MHz */
resp = mmc_cmd(7, 0x10, 0x1, MSC_CMDAT_RESPONSE_R1);
resp = mmc_cmd(6, 0x3b70101, 0x441, MSC_CMDAT_RESPONSE_R1);
while(!(REG_MSC_STAT & MSC_STAT_PRG_DONE))
;
REG_MSC_IREG |= MSC_IREG_PRG_DONE;
}
else
sd_init();
return 0;
}
/* init mmc/sd card we assume that the card is in the slot */
int mmc_init(void)
{
int retries, wait;
u8 *resp;
__gpio_as_msc();
__msc_reset();
MMC_IRQ_MASK();
REG_MSC_CLKRT = 7; //250k
REG_MSC_RDTO = 0xffffffff;
serial_puts("\n\nMMC/SD INIT\n");
/* reset */
resp = mmc_cmd(0, 0, 0x80, 0);
resp = mmc_cmd(8, 0x1aa, 0x1, MSC_CMDAT_RESPONSE_R1);
resp = mmc_cmd(55, 0, 0x1, MSC_CMDAT_RESPONSE_R1);
if(!(resp[0] & 0x20) && (resp[5] != 0x37)) {
serial_puts("MMC card found!\n");
resp = mmc_cmd(1, 0x40ff8000, 0x3, MSC_CMDAT_RESPONSE_R3);
retries = 100;
while (retries-- && resp && !(resp[4] & 0x80)) {
resp = mmc_cmd(1, 0x40300000, 0x3, MSC_CMDAT_RESPONSE_R3);
sd_mdelay(10);
}
if ((resp[4] & 0x80) == 0x80)
serial_puts("MMC init ok\n");
else
serial_puts("MMC init fail\n");
if((resp[4] & 0x60) == 0x40)
highcap = 1;
else
highcap = 0;
/* try to get card id */
resp = mmc_cmd(2, 0, 0x2, MSC_CMDAT_RESPONSE_R2);
resp = mmc_cmd(3, 0x10, 0x1, MSC_CMDAT_RESPONSE_R1);
REG_MSC_CLKRT = 0; /* 16/1 MHz */
resp = mmc_cmd(7, 0x10, 0x1, MSC_CMDAT_RESPONSE_R1);
resp = mmc_cmd(6, 0x3b70101, 0x441, MSC_CMDAT_RESPONSE_R1);
}
else
sd_init();
return 0;
}
/* init mmc/sd card we assume that the card is in the slot */
static int mmc_init(void)
{
int retries;
u8 *resp;
__gpio_as_msc();
__msc_reset();
MMC_IRQ_MASK();
__cpm_select_msc_clk(0,1);
REG_MSC_CLKRT = 7; //250k
resp = mmc_cmd(12, 0, 0x41, MSC_CMDAT_RESPONSE_R1);
/* reset */
resp = mmc_cmd(0, 0, 0x80, 0);
resp = mmc_cmd(8, 0x1aa, 0x1, MSC_CMDAT_RESPONSE_R1);
resp = mmc_cmd(55, 0, 0x1, MSC_CMDAT_RESPONSE_R1);
if(!(resp[0] & 0x20) && (resp[5] != 0x37)) {
resp = mmc_cmd(1, 0xff8000, 0x3, MSC_CMDAT_RESPONSE_R3);
retries = 500;
while (retries-- && resp && !(resp[4] & 0x80)) {
resp = mmc_cmd(1, 0x40300000, 0x3, MSC_CMDAT_RESPONSE_R3);
udelay(1000);
udelay(1000);
}
if (resp[4]== 0x80)
serial_puts("MMC init ok\n");
else
serial_puts("MMC init fail\n");
/* try to get card id */
resp = mmc_cmd(2, 0, 0x2, MSC_CMDAT_RESPONSE_R2);
resp = mmc_cmd(3, 0x10, 0x1, MSC_CMDAT_RESPONSE_R1);
REG_MSC_CLKRT = 2; /* 16/1 MHz */
resp = mmc_cmd(7, 0x10, 0x1, MSC_CMDAT_RESPONSE_R1);
resp = mmc_cmd(6, 0x3b70101, 0x401, MSC_CMDAT_RESPONSE_R1);
}
else
sd_init();
return 0;
}
