Blackfin arch: do not muck with the UART during boot -- let the serial driver worry about it
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
diff --git a/arch/blackfin/mach-bf527/head.S b/arch/blackfin/mach-bf527/head.S
index fa4b18e..c3334cc 100644
--- a/arch/blackfin/mach-bf527/head.S
+++ b/arch/blackfin/mach-bf527/head.S
@@ -35,42 +35,6 @@
#include <asm/mach/mem_init.h>
#endif
-.extern _bf53x_relocate_l1_mem
-
-__INIT
-
-ENTRY(_mach_early_start)
- /* Initialise UART - when booting from u-boot, the UART is not disabled
- * so if we dont initalize here, our serial console gets hosed */
- p0.h = hi(UART1_LCR);
- p0.l = lo(UART1_LCR);
- r0 = 0x0(Z);
- w[p0] = r0.L; /* To enable DLL writes */
- ssync;
-
- p0.h = hi(UART1_DLL);
- p0.l = lo(UART1_DLL);
- r0 = 0x0(Z);
- w[p0] = r0.L;
- ssync;
-
- p0.h = hi(UART1_DLH);
- p0.l = lo(UART1_DLH);
- r0 = 0x00(Z);
- w[p0] = r0.L;
- ssync;
-
- p0.h = hi(UART1_GCTL);
- p0.l = lo(UART1_GCTL);
- r0 = 0x0(Z);
- w[p0] = r0.L; /* To enable UART clock */
- ssync;
-
- rts;
-ENDPROC(_mach_early_start)
-
-__FINIT
-
.section .l1.text
#ifdef CONFIG_BFIN_KERNEL_CLOCK
ENTRY(_start_dma_code)
diff --git a/arch/blackfin/mach-bf533/head.S b/arch/blackfin/mach-bf533/head.S
index 184296b..d59db86 100644
--- a/arch/blackfin/mach-bf533/head.S
+++ b/arch/blackfin/mach-bf533/head.S
@@ -35,54 +35,6 @@
#include <asm/mach/mem_init.h>
#endif
-.extern _bf53x_relocate_l1_mem
-
-__INIT
-
-ENTRY(_mach_early_start)
- p0.h = hi(FIO_MASKA_C);
- p0.l = lo(FIO_MASKA_C);
- r0 = 0xFFFF(Z);
- w[p0] = r0.L; /* Disable all interrupts */
- ssync;
-
- p0.h = hi(FIO_MASKB_C);
- p0.l = lo(FIO_MASKB_C);
- r0 = 0xFFFF(Z);
- w[p0] = r0.L; /* Disable all interrupts */
- ssync;
-
- /* Initialise UART - when booting from u-boot, the UART is not disabled
- * so if we dont initalize here, our serial console gets hosed */
- p0.h = hi(BFIN_UART_LCR);
- p0.l = lo(BFIN_UART_LCR);
- r0 = 0x0(Z);
- w[p0] = r0.L; /* To enable DLL writes */
- ssync;
-
- p0.h = hi(BFIN_UART_DLL);
- p0.l = lo(BFIN_UART_DLL);
- r0 = 0x0(Z);
- w[p0] = r0.L;
- ssync;
-
- p0.h = hi(BFIN_UART_DLH);
- p0.l = lo(BFIN_UART_DLH);
- r0 = 0x00(Z);
- w[p0] = r0.L;
- ssync;
-
- p0.h = hi(BFIN_UART_GCTL);
- p0.l = lo(BFIN_UART_GCTL);
- r0 = 0x0(Z);
- w[p0] = r0.L; /* To enable UART clock */
- ssync;
-
- rts;
-ENDPROC(_mach_early_start)
-
-__FINIT
-
.section .l1.text
#ifdef CONFIG_BFIN_KERNEL_CLOCK
ENTRY(_start_dma_code)
diff --git a/arch/blackfin/mach-bf537/head.S b/arch/blackfin/mach-bf537/head.S
index ba81b77..64e0287 100644
--- a/arch/blackfin/mach-bf537/head.S
+++ b/arch/blackfin/mach-bf537/head.S
@@ -35,56 +35,6 @@
#include <asm/mach/mem_init.h>
#endif
-.extern _bf53x_relocate_l1_mem
-
-__INIT
-
-ENTRY(_mach_early_start)
- /* Initialise General-Purpose I/O Modules on BF537 */
- p0.h = hi(BFIN_PORT_MUX);
- p0.l = lo(BFIN_PORT_MUX);
- R0 = (PGDE_UART | PFTE_UART)(Z);
- W[P0] = R0.L; /* Enable both UARTS */
- SSYNC;
-
- /* Enable peripheral function of PORTF for UART0 and UART1 */
- p0.h = hi(PORTF_FER);
- p0.l = lo(PORTF_FER);
- R0 = 0x000F(Z);
- W[P0] = R0.L;
- SSYNC;
-
- /* Initialise UART - when booting from u-boot, the UART is not disabled
- * so if we dont initalize here, our serial console gets hosed */
- p0.h = hi(BFIN_UART_LCR);
- p0.l = lo(BFIN_UART_LCR);
- r0 = 0x0(Z);
- w[p0] = r0.L; /* To enable DLL writes */
- ssync;
-
- p0.h = hi(BFIN_UART_DLL);
- p0.l = lo(BFIN_UART_DLL);
- r0 = 0x0(Z);
- w[p0] = r0.L;
- ssync;
-
- p0.h = hi(BFIN_UART_DLH);
- p0.l = lo(BFIN_UART_DLH);
- r0 = 0x00(Z);
- w[p0] = r0.L;
- ssync;
-
- p0.h = hi(BFIN_UART_GCTL);
- p0.l = lo(BFIN_UART_GCTL);
- r0 = 0x0(Z);
- w[p0] = r0.L; /* To enable UART clock */
- ssync;
-
- rts;
-ENDPROC(_mach_early_start)
-
-__FINIT
-
.section .l1.text
#ifdef CONFIG_BFIN_KERNEL_CLOCK
ENTRY(_start_dma_code)
diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
index 0b18196..e3000f7 100644
--- a/arch/blackfin/mach-bf548/head.S
+++ b/arch/blackfin/mach-bf548/head.S
@@ -35,16 +35,6 @@
#include <asm/mach/mem_init.h>
#endif
-.extern _bf53x_relocate_l1_mem
-
-__INIT
-
-ENTRY(_mach_early_start)
- rts;
-ENDPROC(_mach_early_start)
-
-__FINIT
-
.section .l1.text
#ifdef CONFIG_BFIN_KERNEL_CLOCK
ENTRY(_start_dma_code)
diff --git a/arch/blackfin/mach-bf561/head.S b/arch/blackfin/mach-bf561/head.S
index fe6f979..c7a81e3 100644
--- a/arch/blackfin/mach-bf561/head.S
+++ b/arch/blackfin/mach-bf561/head.S
@@ -35,42 +35,6 @@
#include <asm/mach/mem_init.h>
#endif
-.extern _bf53x_relocate_l1_mem
-
-__INIT
-
-ENTRY(_mach_early_start)
- /* Initialise UART - when booting from u-boot, the UART is not disabled
- * so if we dont initalize here, our serial console gets hosed */
- p0.h = hi(BFIN_UART_LCR);
- p0.l = lo(BFIN_UART_LCR);
- r0 = 0x0(Z);
- w[p0] = r0.L; /* To enable DLL writes */
- ssync;
-
- p0.h = hi(BFIN_UART_DLL);
- p0.l = lo(BFIN_UART_DLL);
- r0 = 0x0(Z);
- w[p0] = r0.L;
- ssync;
-
- p0.h = hi(BFIN_UART_DLH);
- p0.l = lo(BFIN_UART_DLH);
- r0 = 0x00(Z);
- w[p0] = r0.L;
- ssync;
-
- p0.h = hi(BFIN_UART_GCTL);
- p0.l = lo(BFIN_UART_GCTL);
- r0 = 0x0(Z);
- w[p0] = r0.L; /* To enable UART clock */
- ssync;
-
- rts;
-ENDPROC(_mach_early_start)
-
-__FINIT
-
.section .l1.text
#ifdef CONFIG_BFIN_KERNEL_CLOCK
ENTRY(_start_dma_code)
diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S
index fb7e2d4..191b4e9 100644
--- a/arch/blackfin/mach-common/head.S
+++ b/arch/blackfin/mach-common/head.S
@@ -96,9 +96,6 @@
R0 = RETX;
[P0] = R0;
- /* Let each Blackfin family do its own thing */
- call _mach_early_start;
-
/* Initialize stack pointer */
sp.l = lo(INITIAL_STACK);
sp.h = hi(INITIAL_STACK);