* SPDX-License-Identifier: GPL-2.0+
*/
+#include <bouncebuf.h>
#include <common.h>
#include <malloc.h>
#include <mmc.h>
}
static void dwmci_prepare_data(struct dwmci_host *host,
- struct mmc_data *data, struct dwmci_idmac *cur_idmac)
+ struct mmc_data *data,
+ struct dwmci_idmac *cur_idmac,
+ void *bounce_buffer)
{
unsigned long ctrl;
unsigned int i = 0, flags, cnt, blk_cnt;
- ulong data_start, data_end, start_addr;
+ ulong data_start, data_end;
blk_cnt = data->blocks;
data_start = (ulong)cur_idmac;
dwmci_writel(host, DWMCI_DBADDR, (unsigned int)cur_idmac);
- if (data->flags == MMC_DATA_READ)
- start_addr = (unsigned int)data->dest;
- else
- start_addr = (unsigned int)data->src;
-
do {
flags = DWMCI_IDMAC_OWN | DWMCI_IDMAC_CH ;
flags |= (i == 0) ? DWMCI_IDMAC_FS : 0;
cnt = data->blocksize * 8;
dwmci_set_idma_desc(cur_idmac, flags, cnt,
- start_addr + (i * PAGE_SIZE));
+ (u32)bounce_buffer + (i * PAGE_SIZE));
if (blk_cnt <= 8)
break;
static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
struct mmc_data *data)
{
- struct dwmci_host *host = (struct dwmci_host *)mmc->priv;
+ struct dwmci_host *host = mmc->priv;
ALLOC_CACHE_ALIGN_BUFFER(struct dwmci_idmac, cur_idmac,
data ? DIV_ROUND_UP(data->blocks, 8) : 0);
int flags = 0, i;
u32 retry = 10000;
u32 mask, ctrl;
ulong start = get_timer(0);
+ struct bounce_buffer bbstate;
while (dwmci_readl(host, DWMCI_STATUS) & DWMCI_BUSY) {
if (get_timer(start) > timeout) {
dwmci_writel(host, DWMCI_RINTSTS, DWMCI_INTMSK_ALL);
- if (data)
- dwmci_prepare_data(host, data, cur_idmac);
+ if (data) {
+ if (data->flags == MMC_DATA_READ) {
+ bounce_buffer_start(&bbstate, (void*)data->dest,
+ data->blocksize *
+ data->blocks, GEN_BB_WRITE);
+ } else {
+ bounce_buffer_start(&bbstate, (void*)data->src,
+ data->blocksize *
+ data->blocks, GEN_BB_READ);
+ }
+ dwmci_prepare_data(host, data, cur_idmac,
+ bbstate.bounce_buffer);
+ }
dwmci_writel(host, DWMCI_CMDARG, cmd->cmdarg);
ctrl = dwmci_readl(host, DWMCI_CTRL);
ctrl &= ~(DWMCI_DMA_EN);
dwmci_writel(host, DWMCI_CTRL, ctrl);
+
+ bounce_buffer_stop(&bbstate);
}
udelay(100);
* host->bus_hz should be set from user.
*/
if (host->get_mmc_clk)
- sclk = host->get_mmc_clk(host->dev_index);
+ sclk = host->get_mmc_clk(host);
else if (host->bus_hz)
sclk = host->bus_hz;
else {
static void dwmci_set_ios(struct mmc *mmc)
{
- struct dwmci_host *host = (struct dwmci_host *)mmc->priv;
+ struct dwmci_host *host = mmc->priv;
u32 ctype;
debug("Buswidth = %d, clock: %d\n",mmc->bus_width, mmc->clock);
static int dwmci_init(struct mmc *mmc)
{
- struct dwmci_host *host = (struct dwmci_host *)mmc->priv;
+ struct dwmci_host *host = mmc->priv;
if (host->board_init)
host->board_init(host);
}
/* Enumerate at 400KHz */
- dwmci_setup_bus(host, mmc->f_min);
+ dwmci_setup_bus(host, mmc->cfg->f_min);
dwmci_writel(host, DWMCI_RINTSTS, 0xFFFFFFFF);
dwmci_writel(host, DWMCI_INTMASK, 0);
return 0;
}
+static const struct mmc_ops dwmci_ops = {
+ .send_cmd = dwmci_send_cmd,
+ .set_ios = dwmci_set_ios,
+ .init = dwmci_init,
+};
+
int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk)
{
- struct mmc *mmc;
- int err = 0;
+ host->cfg.name = host->name;
+ host->cfg.ops = &dwmci_ops;
+ host->cfg.f_min = min_clk;
+ host->cfg.f_max = max_clk;
- mmc = malloc(sizeof(struct mmc));
- if (!mmc) {
- printf("mmc malloc fail!\n");
- return -1;
- }
-
- mmc->priv = host;
- host->mmc = mmc;
-
- sprintf(mmc->name, "%s", host->name);
- mmc->send_cmd = dwmci_send_cmd;
- mmc->set_ios = dwmci_set_ios;
- mmc->init = dwmci_init;
- mmc->f_min = min_clk;
- mmc->f_max = max_clk;
+ host->cfg.voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
- mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
-
- mmc->host_caps = host->caps;
+ host->cfg.host_caps = host->caps;
if (host->buswidth == 8) {
- mmc->host_caps |= MMC_MODE_8BIT;
- mmc->host_caps &= ~MMC_MODE_4BIT;
+ host->cfg.host_caps |= MMC_MODE_8BIT;
+ host->cfg.host_caps &= ~MMC_MODE_4BIT;
} else {
- mmc->host_caps |= MMC_MODE_4BIT;
- mmc->host_caps &= ~MMC_MODE_8BIT;
+ host->cfg.host_caps |= MMC_MODE_4BIT;
+ host->cfg.host_caps &= ~MMC_MODE_8BIT;
}
- mmc->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_HC;
+ host->cfg.host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_HC;
+
+ host->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
- err = mmc_register(mmc);
+ host->mmc = mmc_create(&host->cfg, host);
+ if (host->mmc == NULL)
+ return -1;
- return err;
+ return 0;
}