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arm: k3: j721e: add dynamic sf bus override support for j721e 

implement overrides for spl_spi_boot_bus() and spl_spi_boot_cs()
lookup functions according to bootmode selection, so as to support
both QSPI and OSPI boot using the same build.

Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
This commit is contained in:
Vaishnav Achath 2022-05-30 12:16:43 +05:30 committed by Anand Gadiyar
parent 6fc85e5c8b
commit 4d5ca00405
2 changed files with 19 additions and 2 deletions
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17
arch/arm/mach-k3/j721e_init.c
View File

@ -396,6 +396,23 @@ static u32 __get_primary_bootmedia(u32 main_devstat, u32 wkup_devstat)
return bootmode;
}
u32 spl_spi_boot_bus(void)
{
u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);
u32 main_devstat = readl(CTRLMMR_MAIN_DEVSTAT);
u32 bootmode = ((wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT) |
((main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) << BOOT_MODE_B_SHIFT);
return (bootmode == BOOT_DEVICE_QSPI) ? 1 : 0;
}
/* both OSPI and QSPI flash are in CS0 */
u32 spl_spi_boot_cs(void)
{
return 0;
}
u32 spl_boot_device(void)
{
u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);

4
arch/arm/mach-k3/sysfw-loader.c
View File

@ -327,9 +327,9 @@ static void *k3_sysfw_get_spi_addr(void)
struct udevice *dev;
fdt_addr_t addr;
int ret;
unsigned int sf_bus = spl_spi_boot_bus();
ret = uclass_find_device_by_seq(UCLASS_SPI, CONFIG_SF_DEFAULT_BUS,
true, &dev);
ret = uclass_find_device_by_seq(UCLASS_SPI, sf_bus, true, &dev);
if (ret)
return NULL;