diff options
Diffstat (limited to 'arch/arm/mach-davinci/include/mach/uncompress.h')
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/uncompress.h | 87 |
1 files changed, 66 insertions, 21 deletions
diff --git a/arch/arm/mach-davinci/include/mach/uncompress.h b/arch/arm/mach-davinci/include/mach/uncompress.h index 33796b4db17..15a6192ad6e 100644 --- a/arch/arm/mach-davinci/include/mach/uncompress.h +++ b/arch/arm/mach-davinci/include/mach/uncompress.h @@ -1,8 +1,17 @@ /* * Serial port stubs for kernel decompress status messages * - * Author: Anant Gole - * (C) Copyright (C) 2006, Texas Instruments, Inc + * Initially based on: + * arch/arm/plat-omap/include/mach/uncompress.h + * + * Original copyrights follow. + * + * Copyright (C) 2000 RidgeRun, Inc. + * Author: Greg Lonnon <glonnon@ridgerun.com> + * + * Rewritten by: + * Author: <source@mvista.com> + * 2004 (c) MontaVista Software, Inc. * * This file is licensed under the terms of the GNU General Public License * version 2. This program is licensed "as is" without any warranty of any @@ -11,30 +20,17 @@ #include <linux/types.h> #include <linux/serial_reg.h> -#include <mach/serial.h> #include <asm/mach-types.h> -extern unsigned int __machine_arch_type; +#include <mach/serial.h> static u32 *uart; - -static u32 *get_uart_base(void) -{ - if (__machine_arch_type == MACH_TYPE_DAVINCI_DA830_EVM || - __machine_arch_type == MACH_TYPE_DAVINCI_DA850_EVM) - return (u32 *)DA8XX_UART2_BASE; - else - return (u32 *)DAVINCI_UART0_BASE; -} +static u32 *uart_info = (u32 *)(DAVINCI_UART_INFO); /* PORT_16C550A, in polled non-fifo mode */ - static void putc(char c) { - if (!uart) - uart = get_uart_base(); - while (!(uart[UART_LSR] & UART_LSR_THRE)) barrier(); uart[UART_TX] = c; @@ -42,12 +38,61 @@ static void putc(char c) static inline void flush(void) { - if (!uart) - uart = get_uart_base(); - while (!(uart[UART_LSR] & UART_LSR_THRE)) barrier(); } -#define arch_decomp_setup() +static inline void set_uart_info(u32 phys, void * __iomem virt) +{ + uart = (u32 *)phys; + uart_info[0] = phys; + uart_info[1] = (u32)virt; +} + +#define _DEBUG_LL_ENTRY(machine, phys, virt) \ + if (machine_is_##machine()) { \ + set_uart_info(phys, virt); \ + break; \ + } + +#define DEBUG_LL_DAVINCI(machine, port) \ + _DEBUG_LL_ENTRY(machine, DAVINCI_UART##port##_BASE, \ + IO_ADDRESS(DAVINCI_UART##port##_BASE)) + +#define DEBUG_LL_DA8XX(machine, port) \ + _DEBUG_LL_ENTRY(machine, DA8XX_UART##port##_BASE, \ + IO_ADDRESS(DA8XX_UART##port##_BASE)) + +#define DEBUG_LL_TNETV107X(machine, port) \ + _DEBUG_LL_ENTRY(machine, TNETV107X_UART##port##_BASE, \ + TNETV107X_UART##port##_VIRT) + +static inline void __arch_decomp_setup(unsigned long arch_id) +{ + /* + * Initialize the port based on the machine ID from the bootloader. + * Note that we're using macros here instead of switch statement + * as machine_is functions are optimized out for the boards that + * are not selected. + */ + do { + /* Davinci boards */ + DEBUG_LL_DAVINCI(davinci_evm, 0); + DEBUG_LL_DAVINCI(sffsdr, 0); + DEBUG_LL_DAVINCI(neuros_osd2, 0); + DEBUG_LL_DAVINCI(davinci_dm355_evm, 0); + DEBUG_LL_DAVINCI(dm355_leopard, 0); + DEBUG_LL_DAVINCI(davinci_dm6467_evm, 0); + DEBUG_LL_DAVINCI(davinci_dm365_evm, 0); + + /* DA8xx boards */ + DEBUG_LL_DA8XX(davinci_da830_evm, 2); + DEBUG_LL_DA8XX(davinci_da850_evm, 2); + + /* TNETV107x boards */ + DEBUG_LL_TNETV107X(tnetv107x, 1); + } while (0); +} + +#define arch_decomp_setup() __arch_decomp_setup(arch_id) #define arch_decomp_wdog() |