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spi: ich: Add mmio_base to struct ich_spi_platdata

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It is useful to store the mmio base in platdata. It reduces the amount of
casting needed. Update the code and move the struct to the C file at the
same time, as we will need to use with of-platdata.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2019-12-06 21:42:42 -07:00 committed by Bin Meng
parent a550662c27
commit 75214b051b
2 changed files with 13 additions and 19 deletions
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27
drivers/spi/ich.c
View File

@ -27,6 +27,12 @@
#define debug_trace(x, args...)
#endif
struct ich_spi_platdata {
enum ich_version ich_version; /* Controller version, 7 or 9 */
bool lockdown; /* lock down controller settings? */
ulong mmio_base; /* Base of MMIO registers */
};
static u8 ich_readb(struct ich_spi_priv *priv, int reg)
{
u8 value = readb(priv->base + reg);
@ -467,16 +473,9 @@ static int ich_init_controller(struct udevice *dev,
struct ich_spi_platdata *plat,
struct ich_spi_priv *ctlr)
{
ulong sbase_addr;
void *sbase;
/* SBASE is similar */
pch_get_spi_base(dev->parent, &sbase_addr);
sbase = (void *)sbase_addr;
debug("%s: sbase=%p\n", __func__, sbase);
ctlr->base = (void *)plat->mmio_base;
if (plat->ich_version == ICHV_7) {
struct ich7_spi_regs *ich7_spi = sbase;
struct ich7_spi_regs *ich7_spi = ctlr->base;
ctlr->opmenu = offsetof(struct ich7_spi_regs, opmenu);
ctlr->menubytes = sizeof(ich7_spi->opmenu);
@ -488,9 +487,8 @@ static int ich_init_controller(struct udevice *dev,
ctlr->control = offsetof(struct ich7_spi_regs, spic);
ctlr->bbar = offsetof(struct ich7_spi_regs, bbar);
ctlr->preop = offsetof(struct ich7_spi_regs, preop);
ctlr->base = ich7_spi;
} else if (plat->ich_version == ICHV_9) {
struct ich9_spi_regs *ich9_spi = sbase;
struct ich9_spi_regs *ich9_spi = ctlr->base;
ctlr->opmenu = offsetof(struct ich9_spi_regs, opmenu);
ctlr->menubytes = sizeof(ich9_spi->opmenu);
@ -505,7 +503,6 @@ static int ich_init_controller(struct udevice *dev,
ctlr->preop = offsetof(struct ich9_spi_regs, preop);
ctlr->bcr = offsetof(struct ich9_spi_regs, bcr);
ctlr->pr = &ich9_spi->pr[0];
ctlr->base = ich9_spi;
} else {
debug("ICH SPI: Unrecognised ICH version %d\n",
plat->ich_version);
@ -516,8 +513,8 @@ static int ich_init_controller(struct udevice *dev,
ctlr->max_speed = 20000000;
if (plat->ich_version == ICHV_9 && ich9_can_do_33mhz(dev))
ctlr->max_speed = 33000000;
debug("ICH SPI: Version ID %d detected at %p, speed %ld\n",
plat->ich_version, ctlr->base, ctlr->max_speed);
debug("ICH SPI: Version ID %d detected at %lx, speed %ld\n",
plat->ich_version, plat->mmio_base, ctlr->max_speed);
ich_set_bbar(ctlr, 0);
@ -605,6 +602,8 @@ static int ich_spi_ofdata_to_platdata(struct udevice *dev)
plat->ich_version = dev_get_driver_data(dev);
plat->lockdown = dev_read_bool(dev, "intel,spi-lock-down");
pch_get_spi_base(priv->pch, &plat->mmio_base);
return 0;
}

5
drivers/spi/ich.h
View File

@ -168,11 +168,6 @@ enum ich_version {
ICHV_9,
};
struct ich_spi_platdata {
enum ich_version ich_version; /* Controller version, 7 or 9 */
bool lockdown; /* lock down controller settings? */
};
struct ich_spi_priv {
int opmenu;
int menubytes;