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rockchip: mmc: Update the driver to support of-platdata

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Add support for of-platdata with rk3288. This requires decoding the
of-platdata struct and setting up the device from that. Also the driver
needs to be renamed to match the string that of-platdata will search for.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-07-04 11:58:27 -06:00
parent 6809b04f48
commit bfeb443e3d
1 changed files with 26 additions and 3 deletions
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29
drivers/mmc/rockchip_dw_mmc.c
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@ -7,8 +7,10 @@
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <dt-structs.h>
#include <dwmmc.h>
#include <errno.h>
#include <mapmem.h>
#include <pwrseq.h>
#include <syscon.h>
#include <asm/gpio.h>
@ -19,6 +21,9 @@
DECLARE_GLOBAL_DATA_PTR;
struct rockchip_mmc_plat {
#if CONFIG_IS_ENABLED(OF_PLATDATA)
struct dtd_rockchip_rk3288_dw_mshc dtplat;
#endif
struct mmc_config cfg;
struct mmc mmc;
};
@ -48,6 +53,7 @@ static uint rockchip_dwmmc_get_mmc_clk(struct dwmci_host *host, uint freq)
static int rockchip_dwmmc_ofdata_to_platdata(struct udevice *dev)
{
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
struct rockchip_dwmmc_priv *priv = dev_get_priv(dev);
struct dwmci_host *host = &priv->host;
@ -73,7 +79,7 @@ static int rockchip_dwmmc_ofdata_to_platdata(struct udevice *dev)
if (fdtdec_get_int_array(gd->fdt_blob, dev->of_offset,
"clock-freq-min-max", priv->minmax, 2))
return -EINVAL;
#endif
return 0;
}
@ -86,10 +92,27 @@ static int rockchip_dwmmc_probe(struct udevice *dev)
struct udevice *pwr_dev __maybe_unused;
int ret;
#if CONFIG_IS_ENABLED(OF_PLATDATA)
struct dtd_rockchip_rk3288_dw_mshc *dtplat = &plat->dtplat;
host->name = dev->name;
host->ioaddr = map_sysmem(dtplat->reg[0], dtplat->reg[1]);
host->buswidth = dtplat->bus_width;
host->get_mmc_clk = rockchip_dwmmc_get_mmc_clk;
host->priv = dev;
host->dev_index = 0;
priv->fifo_depth = dtplat->fifo_depth;
priv->fifo_mode = 0;
memcpy(priv->minmax, dtplat->clock_freq_min_max, sizeof(priv->minmax));
ret = clk_get_by_index_platdata(dev, 0, dtplat->clocks, &priv->clk);
if (ret < 0)
return ret;
#else
ret = clk_get_by_index(dev, 0, &priv->clk);
if (ret < 0)
return ret;
#endif
host->fifoth_val = MSIZE(0x2) |
RX_WMARK(priv->fifo_depth / 2 - 1) |
TX_WMARK(priv->fifo_depth / 2);
@ -134,7 +157,7 @@ static const struct udevice_id rockchip_dwmmc_ids[] = {
};
U_BOOT_DRIVER(rockchip_dwmmc_drv) = {
.name = "rockchip_dwmmc",
.name = "rockchip_rk3288_dw_mshc",
.id = UCLASS_MMC,
.of_match = rockchip_dwmmc_ids,
.ofdata_to_platdata = rockchip_dwmmc_ofdata_to_platdata,