On 2025/10/19 23:47, Jonas Karlman wrote:
The bootsource ids reported by BootROM of RK3528 for e.g. USB differs compared to prior SoCs: - Booting from USB report a new bootsource id 0x81. Add a RK3528 specific read_brom_bootsource_id() function to help decode this new bootsource id value to help support booting from USB on RK3528. Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]> Thanks, - Kever
--- v4: No change v3: New patch to map USB bootsource id on RK3528 --- arch/arm/mach-rockchip/rk3528/rk3528.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/arm/mach-rockchip/rk3528/rk3528.c b/arch/arm/mach-rockchip/rk3528/rk3528.c index f9bfc445b857..57ead0006f1f 100644 --- a/arch/arm/mach-rockchip/rk3528/rk3528.c +++ b/arch/arm/mach-rockchip/rk3528/rk3528.c @@ -49,6 +49,21 @@ void board_debug_uart_init(void) { }+u32 read_brom_bootsource_id(void)+{ + u32 bootsource_id = readl(BROM_BOOTSOURCE_ID_ADDR); + + /* Re-map the raw value read from reg to an existing BROM_BOOTSOURCE + * enum value to avoid having to create a larger boot_devices table. + */ + if (bootsource_id == 0x81) + return BROM_BOOTSOURCE_USB; + else if (bootsource_id > BROM_LAST_BOOTSOURCE) + log_debug("Unknown bootsource %x\n", bootsource_id); + + return bootsource_id; +} + int arch_cpu_init(void) { u32 val;
-- Thanks & Best regards, Kever Yang ************************************************************************************************** 杨凯 市场部 Kever Yang Marketing Department 瑞芯微电子股份有限公司 Rockchip Electronics Co.，Ltd。 地址：福建省福州市铜盘路软件大道89号软件园A区18号楼 (350003) Addr : No.18 Building，A District，No.89，Fuzhou Software Boulevard，Fuzhou，Fujian，PRC
