diff options
Diffstat (limited to 'patches/linux-3.12-rc4/0026-HACK-make-printhex-and-printch-work-on-efm32-with-XI.patch')
| -rw-r--r-- | patches/linux-3.12-rc4/0026-HACK-make-printhex-and-printch-work-on-efm32-with-XI.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/patches/linux-3.12-rc4/0026-HACK-make-printhex-and-printch-work-on-efm32-with-XI.patch b/patches/linux-3.12-rc4/0026-HACK-make-printhex-and-printch-work-on-efm32-with-XI.patch new file mode 100644 index 0000000..f00e428 --- /dev/null +++ b/patches/linux-3.12-rc4/0026-HACK-make-printhex-and-printch-work-on-efm32-with-XI.patch @@ -0,0 +1,30 @@ +From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de> +Date: Wed, 17 Apr 2013 11:52:22 +0200 +Subject: [PATCH] HACK! make printhex and printch work on efm32 with XIP + +On XIP the kernel image is readonly, so is the hexbuf array. Use some +SRAM instead. +--- + arch/arm/kernel/debug.S | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S +index 14f7c3b..e18cb30 100644 +--- a/arch/arm/kernel/debug.S ++++ b/arch/arm/kernel/debug.S +@@ -56,6 +56,7 @@ ENDPROC(printhex4) + ENTRY(printhex2) + mov r1, #2 + printhex: adr r2, hexbuf ++ ldr r2, =0x2001f000 + add r3, r2, r1 + mov r1, #0 + strb r1, [r3] +@@ -121,6 +122,7 @@ ENDPROC(printascii) + + ENTRY(printch) + adr r1, hexbuf ++ ldr r1, =0x2001f000 + strb r0, [r1] + mov r0, #0x03 @ SYS_WRITEC + ARM( svc #0x123456 ) |