From: Paul Cercueil Date: Sun, 30 May 2021 17:17:56 +0000 (+0100) Subject: MIPS: boot: Support specifying UART port on Ingenic SoCs X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f92a05b9c0be58156de8727cc30f74eec00dc74f;p=linux.git MIPS: boot: Support specifying UART port on Ingenic SoCs Allow specifying from the config the UART to use on Ingenic SoCs when compressed kernel debugging is enabled. Signed-off-by: Paul Cercueil Signed-off-by: Thomas Bogendoerfer --- diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug index f5832a49a8810..43dbf5930796f 100644 --- a/arch/mips/Kconfig.debug +++ b/arch/mips/Kconfig.debug @@ -102,6 +102,14 @@ config DEBUG_ZBOOT to reduce the kernel image size and speed up the booting procedure a little. +config ZBOOT_INGENIC_UART + int "UART to use for compressed kernel debugging" + depends on DEBUG_ZBOOT && MACH_INGENIC_SOC + default 0 + range 0 4 + help + Specify the UART that should be used for compressed kernel debugging. + config SPINLOCK_TEST bool "Enable spinlock timing tests in debugfs" depends on DEBUG_FS diff --git a/arch/mips/boot/compressed/uart-16550.c b/arch/mips/boot/compressed/uart-16550.c index aee8d7b8f0914..c18d7f72d9d9c 100644 --- a/arch/mips/boot/compressed/uart-16550.c +++ b/arch/mips/boot/compressed/uart-16550.c @@ -19,8 +19,8 @@ #endif #ifdef CONFIG_MACH_INGENIC -#define INGENIC_UART0_BASE_ADDR 0x10030000 -#define PORT(offset) (CKSEG1ADDR(INGENIC_UART0_BASE_ADDR) + (4 * offset)) +#define INGENIC_UART_BASE_ADDR (0x10030000 + 0x1000 * CONFIG_ZBOOT_INGENIC_UART) +#define PORT(offset) (CKSEG1ADDR(INGENIC_UART_BASE_ADDR) + (4 * offset)) #endif #ifdef CONFIG_CPU_XLR