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rng: iproc_rng200: Enable support for RPi4 armv7

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On the RPi4 armv7 build we have the situationt that we use physical
addresses of 64 bit, while the virtual addresses are 32 bit.
Remap the base address in this scenario via map_physmem().

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
This commit is contained in:
Matthias Brugger 2021-02-26 11:48:00 +01:00
parent 02675393d0
commit 3ac05239b4
1 changed files with 4 additions and 4 deletions
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8
drivers/rng/iproc_rng200.c
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@ -34,12 +34,12 @@
#define RNG_FIFO_COUNT_RNG_FIFO_COUNT_MASK 0x000000FF
struct iproc_rng200_plat {
fdt_addr_t base;
void __iomem *base;
};
static void iproc_rng200_enable(struct iproc_rng200_plat *pdata, bool enable)
{
fdt_addr_t rng_base = pdata->base;
void __iomem *rng_base = pdata->base;
u32 val;
val = readl(rng_base + RNG_CTRL_OFFSET);
@ -54,7 +54,7 @@ static void iproc_rng200_enable(struct iproc_rng200_plat *pdata, bool enable)
static void iproc_rng200_restart(struct iproc_rng200_plat *pdata)
{
fdt_addr_t rng_base = pdata->base;
void __iomem *rng_base = pdata->base;
u32 val;
iproc_rng200_enable(pdata, false);
@ -156,7 +156,7 @@ static int iproc_rng200_of_to_plat(struct udevice *dev)
{
struct iproc_rng200_plat *pdata = dev_get_plat(dev);
pdata->base = dev_read_addr(dev);
pdata->base = devfdt_map_physmem(dev, sizeof(void *));
if (!pdata->base)
return -ENODEV;