#include <asm/errno.h>
#include <asm/byteorder.h>
#include <asm/blackfin.h>
+#include <asm/clock.h>
+#include <asm/portmux.h>
#include <asm/mach-common/bits/sdh.h>
#include <asm/mach-common/bits/dma.h>
-#if defined(__ADSPBF51x__)
-# define bfin_read_SDH_PWR_CTL bfin_read_RSI_PWR_CONTROL
-# define bfin_write_SDH_PWR_CTL bfin_write_RSI_PWR_CONTROL
+#if defined(__ADSPBF50x__) || defined(__ADSPBF51x__) || defined(__ADSPBF60x__)
# define bfin_read_SDH_CLK_CTL bfin_read_RSI_CLK_CONTROL
# define bfin_write_SDH_CLK_CTL bfin_write_RSI_CLK_CONTROL
# define bfin_write_SDH_ARGUMENT bfin_write_RSI_ARGUMENT
# define bfin_write_SDH_STATUS_CLR bfin_write_RSI_STATUSCL
# define bfin_read_SDH_CFG bfin_read_RSI_CONFIG
# define bfin_write_SDH_CFG bfin_write_RSI_CONFIG
+# if defined(__ADSPBF60x__)
+# define bfin_read_SDH_BLK_SIZE bfin_read_RSI_BLKSZ
+# define bfin_write_SDH_BLK_SIZE bfin_write_RSI_BLKSZ
+# define bfin_write_DMA_START_ADDR bfin_write_DMA10_START_ADDR
+# define bfin_write_DMA_X_COUNT bfin_write_DMA10_X_COUNT
+# define bfin_write_DMA_X_MODIFY bfin_write_DMA10_X_MODIFY
+# define bfin_write_DMA_CONFIG bfin_write_DMA10_CONFIG
+# else
+# define bfin_read_SDH_PWR_CTL bfin_read_RSI_PWR_CONTROL
+# define bfin_write_SDH_PWR_CTL bfin_write_RSI_PWR_CONTROL
# define bfin_write_DMA_START_ADDR bfin_write_DMA4_START_ADDR
# define bfin_write_DMA_X_COUNT bfin_write_DMA4_X_COUNT
# define bfin_write_DMA_X_MODIFY bfin_write_DMA4_X_MODIFY
# define bfin_write_DMA_CONFIG bfin_write_DMA4_CONFIG
+# endif
+# define PORTMUX_PINS \
+ { P_RSI_DATA0, P_RSI_DATA1, P_RSI_DATA2, P_RSI_DATA3, P_RSI_CMD, P_RSI_CLK, 0 }
#elif defined(__ADSPBF54x__)
# define bfin_write_DMA_START_ADDR bfin_write_DMA22_START_ADDR
# define bfin_write_DMA_X_COUNT bfin_write_DMA22_X_COUNT
# define bfin_write_DMA_X_MODIFY bfin_write_DMA22_X_MODIFY
# define bfin_write_DMA_CONFIG bfin_write_DMA22_CONFIG
+# define PORTMUX_PINS \
+ { P_SD_D0, P_SD_D1, P_SD_D2, P_SD_D3, P_SD_CLK, P_SD_CMD, 0 }
#else
# error no support for this proc yet
#endif
static int
sdh_send_cmd(struct mmc *mmc, struct mmc_cmd *mmc_cmd)
{
- unsigned int sdh_cmd;
- unsigned int status;
+ unsigned int status, timeout;
int cmd = mmc_cmd->cmdidx;
int flags = mmc_cmd->resp_type;
int arg = mmc_cmd->cmdarg;
- int ret = 0;
- sdh_cmd = 0;
-
- sdh_cmd |= cmd;
+ int ret;
+ u16 sdh_cmd;
+ sdh_cmd = cmd | CMD_E;
if (flags & MMC_RSP_PRESENT)
sdh_cmd |= CMD_RSP;
-
if (flags & MMC_RSP_136)
sdh_cmd |= CMD_L_RSP;
+#ifdef RSI_BLKSZ
+ sdh_cmd |= CMD_DATA0_BUSY;
+#endif
bfin_write_SDH_ARGUMENT(arg);
- bfin_write_SDH_COMMAND(sdh_cmd | CMD_E);
+ bfin_write_SDH_COMMAND(sdh_cmd);
/* wait for a while */
+ timeout = 0;
do {
+ if (++timeout > 1000000) {
+ status = CMD_TIME_OUT;
+ break;
+ }
udelay(1);
status = bfin_read_SDH_STATUS();
} while (!(status & (CMD_SENT | CMD_RESP_END | CMD_TIME_OUT |
}
if (status & CMD_TIME_OUT)
- ret |= TIMEOUT;
+ ret = TIMEOUT;
else if (status & CMD_CRC_FAIL && flags & MMC_RSP_CRC)
- ret |= COMM_ERR;
+ ret = COMM_ERR;
+ else
+ ret = 0;
bfin_write_SDH_STATUS_CLR(CMD_SENT_STAT | CMD_RESP_END_STAT |
CMD_TIMEOUT_STAT | CMD_CRC_FAIL_STAT);
+#ifdef RSI_BLKSZ
+ /* wait till card ready */
+ while (!(bfin_read_RSI_ESTAT() & SD_CARD_READY))
+ continue;
+ bfin_write_RSI_ESTAT(SD_CARD_READY);
+#endif
+
return ret;
}
{
u16 data_ctl = 0;
u16 dma_cfg = 0;
- int ret = 0;
+ unsigned long data_size = data->blocksize * data->blocks;
/* Don't support write yet. */
if (data->flags & MMC_DATA_WRITE)
return UNUSABLE_ERR;
- data_ctl |= ((ffs(data->blocksize) - 1) << 4);
+#ifndef RSI_BLKSZ
+ data_ctl |= ((ffs(data_size) - 1) << 4);
+#else
+ bfin_write_SDH_BLK_SIZE(data_size);
+#endif
data_ctl |= DTX_DIR;
bfin_write_SDH_DATA_CTL(data_ctl);
- dma_cfg = WDSIZE_32 | RESTART | WNR | DMAEN;
+ dma_cfg = WDSIZE_32 | PSIZE_32 | RESTART | WNR | DMAEN;
- bfin_write_SDH_DATA_TIMER(0xFFFF);
+ bfin_write_SDH_DATA_TIMER(-1);
blackfin_dcache_flush_invalidate_range(data->dest,
- data->dest + data->blocksize);
+ data->dest + data_size);
/* configure DMA */
bfin_write_DMA_START_ADDR(data->dest);
- bfin_write_DMA_X_COUNT(data->blocksize / 4);
+ bfin_write_DMA_X_COUNT(data_size / 4);
bfin_write_DMA_X_MODIFY(4);
bfin_write_DMA_CONFIG(dma_cfg);
- bfin_write_SDH_DATA_LGTH(data->blocksize);
+ bfin_write_SDH_DATA_LGTH(data_size);
/* kick off transfer */
bfin_write_SDH_DATA_CTL(bfin_read_SDH_DATA_CTL() | DTX_DMA_E | DTX_E);
- return ret;
+ return 0;
}
u32 status;
int ret = 0;
+ if (data) {
+ ret = sdh_setup_data(mmc, data);
+ if (ret)
+ return ret;
+ }
+
ret = sdh_send_cmd(mmc, cmd);
if (ret) {
+ bfin_write_SDH_COMMAND(0);
+ bfin_write_DMA_CONFIG(0);
+ bfin_write_SDH_DATA_CTL(0);
+ SSYNC();
printf("sending CMD%d failed\n", cmd->cmdidx);
return ret;
}
+
if (data) {
- ret = sdh_setup_data(mmc, data);
do {
udelay(1);
status = bfin_read_SDH_STATUS();
if (mmc->bus_width == 4) {
cfg = bfin_read_SDH_CFG();
- cfg &= ~0x80;
- cfg |= 0x40;
+#ifndef RSI_BLKSZ
+ cfg &= ~PD_SDDAT3;
+#endif
+ cfg |= PUP_SDDAT3;
bfin_write_SDH_CFG(cfg);
- clk_ctl |= WIDE_BUS;
+ clk_ctl |= WIDE_BUS_4;
}
bfin_write_SDH_CLK_CTL(clk_ctl);
sdh_set_clk(mmc->clock);
static int bfin_sdh_init(struct mmc *mmc)
{
+ const unsigned short pins[] = PORTMUX_PINS;
+ int ret;
- u16 pwr_ctl = 0;
-/* Initialize sdh controller */
+ /* Initialize sdh controller */
+ ret = peripheral_request_list(pins, "bfin_sdh");
+ if (ret < 0)
+ return ret;
#if defined(__ADSPBF54x__)
bfin_write_DMAC1_PERIMUX(bfin_read_DMAC1_PERIMUX() | 0x1);
- bfin_write_PORTC_FER(bfin_read_PORTC_FER() | 0x3F00);
- bfin_write_PORTC_MUX(bfin_read_PORTC_MUX() & ~0xFFF0000);
-#elif defined(__ADSPBF51x__)
- bfin_write_PORTG_FER(bfin_read_PORTG_FER() | 0x01F8);
- bfin_write_PORTG_MUX((bfin_read_PORTG_MUX() & ~0x3FC) | 0x154);
-#else
-# error no portmux for this proc yet
#endif
bfin_write_SDH_CFG(bfin_read_SDH_CFG() | CLKS_EN);
/* Disable card detect pin */
bfin_write_SDH_CFG((bfin_read_SDH_CFG() & 0x1F) | 0x60);
-
- pwr_ctl |= ROD_CTL;
- pwr_ctl |= PWR_ON;
- bfin_write_SDH_PWR_CTL(pwr_ctl);
+#ifndef RSI_BLKSZ
+ bfin_write_SDH_PWR_CTL(PWR_ON | ROD_CTL);
+#else
+ bfin_write_SDH_CFG(bfin_read_SDH_CFG() | PWR_ON);
+#endif
return 0;
}
+static const struct mmc_ops bfin_mmc_ops = {
+ .send_cmd = bfin_sdh_request,
+ .set_ios = bfin_sdh_set_ios,
+ .init = bfin_sdh_init,
+};
+
+static struct mmc_config bfin_mmc_cfg = {
+ .name = "Blackfin SDH",
+ .ops = &bfin_mmc_ops,
+ .host_caps = MMC_MODE_4BIT,
+ .voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
+ .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT,
+};
int bfin_mmc_init(bd_t *bis)
{
- struct mmc *mmc = NULL;
-
- mmc = malloc(sizeof(struct mmc));
-
- if (!mmc)
- return -ENOMEM;
- sprintf(mmc->name, "Blackfin SDH");
- mmc->send_cmd = bfin_sdh_request;
- mmc->set_ios = bfin_sdh_set_ios;
- mmc->init = bfin_sdh_init;
- mmc->host_caps = MMC_MODE_4BIT;
+ struct mmc *mmc;
- mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
- mmc->f_max = get_sclk();
- mmc->f_min = mmc->f_max >> 9;
- mmc->block_dev.part_type = PART_TYPE_DOS;
+ bfin_mmc_cfg.f_max = get_sclk();
+ bfin_mmc_cfg.f_min = bfin_mmc_cfg.f_max >> 9;
- mmc_register(mmc);
+ mmc = mmc_create(&bfin_mmc_cfg, NULL);
+ if (mmc == NULL)
+ return -1;
return 0;
}
projects / karo-tx-uboot.git / blobdiff