From ec4a637d35d4e05d1f43a68d647fb2453891379a Mon Sep 17 00:00:00 2001 From: Carl-Johan Irekvist Date: Wed, 8 Dec 2010 11:07:53 +0530 Subject: [PATCH] ux500: fix uncompressor UART address for U5500 The uncompress code for zImage uses the UART to print status messages, this was hard coded to use UART2 for the U8500 platform. This patch checks at run time which platform it is run on. U5500 uses UART0 as console UART. Signed-off-by: Carl-Johan Irekvist Signed-off-by: Rabin Vincent Signed-off-by: Linus Walleij --- arch/arm/mach-ux500/include/mach/uncompress.h | 23 +++++++++++-------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/arch/arm/mach-ux500/include/mach/uncompress.h b/arch/arm/mach-ux500/include/mach/uncompress.h index 0271ca0a83df..9a6614c6808e 100644 --- a/arch/arm/mach-ux500/include/mach/uncompress.h +++ b/arch/arm/mach-ux500/include/mach/uncompress.h @@ -19,38 +19,43 @@ #define __ASM_ARCH_UNCOMPRESS_H #include +#include #include +#include #include -#define U8500_UART_DR 0x80007000 -#define U8500_UART_LCRH 0x8000702c -#define U8500_UART_CR 0x80007030 -#define U8500_UART_FR 0x80007018 +static u32 ux500_uart_base; static void putc(const char c) { /* Do nothing if the UART is not enabled. */ - if (!(__raw_readb(U8500_UART_CR) & 0x1)) + if (!(__raw_readb(ux500_uart_base + UART011_CR) & 0x1)) return; if (c == '\n') putc('\r'); - while (__raw_readb(U8500_UART_FR) & (1 << 5)) + while (__raw_readb(ux500_uart_base + UART01x_FR) & (1 << 5)) barrier(); - __raw_writeb(c, U8500_UART_DR); + __raw_writeb(c, ux500_uart_base + UART01x_DR); } static void flush(void) { - if (!(__raw_readb(U8500_UART_CR) & 0x1)) + if (!(__raw_readb(ux500_uart_base + UART011_CR) & 0x1)) return; - while (__raw_readb(U8500_UART_FR) & (1 << 3)) + while (__raw_readb(ux500_uart_base + UART01x_FR) & (1 << 3)) barrier(); } static inline void arch_decomp_setup(void) { + if (machine_is_u8500()) + ux500_uart_base = U8500_UART2_BASE; + else if (machine_is_u5500()) + ux500_uart_base = U5500_UART0_BASE; + else /* not much can be done to help here */ + ux500_uart_base = U8500_UART2_BASE; } #define arch_decomp_wdog() /* nothing to do here */