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8ea0de4b88
To be able to relocate the .bss section at run time independently from the rest of the code, we must make sure that no GOTOFF relocations are used with .bss symbols. This usually means that no global variables can be marked static unless they're also const. Let's remove the static qualifier from current offenders, or turn them into const variables when possible. Next commit will ensure the build fails if one of those is reintroduced due to otherwise enforced coding standards for the kernel. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Tested-by: Tony Lindgren <tony@atomide.com>
185 lines
4.7 KiB
C
185 lines
4.7 KiB
C
/*
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* arch/arm/plat-omap/include/mach/uncompress.h
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*
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* Serial port stubs for kernel decompress status messages
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*
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* Initially based on:
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* linux-2.4.15-rmk1-dsplinux1.6/arch/arm/plat-omap/include/mach1510/uncompress.h
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* Copyright (C) 2000 RidgeRun, Inc.
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* Author: Greg Lonnon <glonnon@ridgerun.com>
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*
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* Rewritten by:
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* Author: <source@mvista.com>
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* 2004 (c) MontaVista Software, Inc.
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*/
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#include <linux/types.h>
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#include <linux/serial_reg.h>
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#include <asm/memory.h>
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#include <asm/mach-types.h>
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#include <plat/serial.h>
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#define MDR1_MODE_MASK 0x07
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volatile u8 *uart_base;
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int uart_shift;
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/*
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* Store the DEBUG_LL uart number into memory.
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* See also debug-macro.S, and serial.c for related code.
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*/
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static void set_omap_uart_info(unsigned char port)
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{
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*(volatile u32 *)OMAP_UART_INFO = port;
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}
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static void putc(int c)
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{
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if (!uart_base)
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return;
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/* Check for UART 16x mode */
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if ((uart_base[UART_OMAP_MDR1 << uart_shift] & MDR1_MODE_MASK) != 0)
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return;
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while (!(uart_base[UART_LSR << uart_shift] & UART_LSR_THRE))
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barrier();
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uart_base[UART_TX << uart_shift] = c;
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}
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static inline void flush(void)
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{
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}
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/*
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* Macros to configure UART1 and debug UART
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*/
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#define _DEBUG_LL_ENTRY(mach, dbg_uart, dbg_shft, dbg_id) \
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if (machine_is_##mach()) { \
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uart_base = (volatile u8 *)(dbg_uart); \
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uart_shift = (dbg_shft); \
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port = (dbg_id); \
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set_omap_uart_info(port); \
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break; \
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}
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#define DEBUG_LL_OMAP7XX(p, mach) \
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_DEBUG_LL_ENTRY(mach, OMAP1_UART##p##_BASE, OMAP7XX_PORT_SHIFT, \
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OMAP1UART##p)
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#define DEBUG_LL_OMAP1(p, mach) \
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_DEBUG_LL_ENTRY(mach, OMAP1_UART##p##_BASE, OMAP_PORT_SHIFT, \
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OMAP1UART##p)
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#define DEBUG_LL_OMAP2(p, mach) \
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_DEBUG_LL_ENTRY(mach, OMAP2_UART##p##_BASE, OMAP_PORT_SHIFT, \
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OMAP2UART##p)
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#define DEBUG_LL_OMAP3(p, mach) \
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_DEBUG_LL_ENTRY(mach, OMAP3_UART##p##_BASE, OMAP_PORT_SHIFT, \
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OMAP3UART##p)
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#define DEBUG_LL_OMAP4(p, mach) \
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_DEBUG_LL_ENTRY(mach, OMAP4_UART##p##_BASE, OMAP_PORT_SHIFT, \
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OMAP4UART##p)
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/* Zoom2/3 shift is different for UART1 and external port */
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#define DEBUG_LL_ZOOM(mach) \
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_DEBUG_LL_ENTRY(mach, ZOOM_UART_BASE, ZOOM_PORT_SHIFT, ZOOM_UART)
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#define DEBUG_LL_TI816X(p, mach) \
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_DEBUG_LL_ENTRY(mach, TI816X_UART##p##_BASE, OMAP_PORT_SHIFT, \
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TI816XUART##p)
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static inline void __arch_decomp_setup(unsigned long arch_id)
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{
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int port = 0;
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/*
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* Initialize the port based on the machine ID from the bootloader.
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* Note that we're using macros here instead of switch statement
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* as machine_is functions are optimized out for the boards that
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* are not selected.
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*/
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do {
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/* omap7xx/8xx based boards using UART1 with shift 0 */
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DEBUG_LL_OMAP7XX(1, herald);
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DEBUG_LL_OMAP7XX(1, omap_perseus2);
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/* omap15xx/16xx based boards using UART1 */
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DEBUG_LL_OMAP1(1, ams_delta);
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DEBUG_LL_OMAP1(1, nokia770);
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DEBUG_LL_OMAP1(1, omap_h2);
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DEBUG_LL_OMAP1(1, omap_h3);
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DEBUG_LL_OMAP1(1, omap_innovator);
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DEBUG_LL_OMAP1(1, omap_osk);
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DEBUG_LL_OMAP1(1, omap_palmte);
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DEBUG_LL_OMAP1(1, omap_palmz71);
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/* omap15xx/16xx based boards using UART2 */
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DEBUG_LL_OMAP1(2, omap_palmtt);
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/* omap15xx/16xx based boards using UART3 */
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DEBUG_LL_OMAP1(3, sx1);
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/* omap2 based boards using UART1 */
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DEBUG_LL_OMAP2(1, omap2evm);
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DEBUG_LL_OMAP2(1, omap_2430sdp);
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DEBUG_LL_OMAP2(1, omap_apollon);
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DEBUG_LL_OMAP2(1, omap_h4);
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/* omap2 based boards using UART3 */
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DEBUG_LL_OMAP2(3, nokia_n800);
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DEBUG_LL_OMAP2(3, nokia_n810);
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DEBUG_LL_OMAP2(3, nokia_n810_wimax);
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/* omap3 based boards using UART1 */
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DEBUG_LL_OMAP2(1, omap3evm);
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DEBUG_LL_OMAP3(1, omap_3430sdp);
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DEBUG_LL_OMAP3(1, omap_3630sdp);
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DEBUG_LL_OMAP3(1, omap3530_lv_som);
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DEBUG_LL_OMAP3(1, omap3_torpedo);
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/* omap3 based boards using UART3 */
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DEBUG_LL_OMAP3(3, cm_t35);
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DEBUG_LL_OMAP3(3, cm_t3517);
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DEBUG_LL_OMAP3(3, craneboard);
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DEBUG_LL_OMAP3(3, devkit8000);
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DEBUG_LL_OMAP3(3, igep0020);
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DEBUG_LL_OMAP3(3, igep0030);
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DEBUG_LL_OMAP3(3, nokia_rm680);
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DEBUG_LL_OMAP3(3, nokia_rx51);
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DEBUG_LL_OMAP3(3, omap3517evm);
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DEBUG_LL_OMAP3(3, omap3_beagle);
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DEBUG_LL_OMAP3(3, omap3_pandora);
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DEBUG_LL_OMAP3(3, omap_ldp);
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DEBUG_LL_OMAP3(3, overo);
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DEBUG_LL_OMAP3(3, touchbook);
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/* omap4 based boards using UART3 */
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DEBUG_LL_OMAP4(3, omap_4430sdp);
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DEBUG_LL_OMAP4(3, omap4_panda);
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/* zoom2/3 external uart */
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DEBUG_LL_ZOOM(omap_zoom2);
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DEBUG_LL_ZOOM(omap_zoom3);
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/* TI8168 base boards using UART3 */
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DEBUG_LL_TI816X(3, ti8168evm);
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} while (0);
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}
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#define arch_decomp_setup() __arch_decomp_setup(arch_id)
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/*
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* nothing to do
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*/
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#define arch_decomp_wdog()
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