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>

6 files changed, 0 insertions, 183 deletions

diff --git a/arch/blackfin/mach-bf527/head.S b/arch/blackfin/mach-bf527/head.S
index fa4b18eddf63..c3334cc5bcb7 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 184296bee3c9..d59db86195b6 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 ba81b779511d..64e0287ab266 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 0b18196df869..e3000f70a26e 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 fe6f979947c6..c7a81e34703d 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 fb7e2d426999..191b4e974c4b 100644
--- a/arch/blackfin/mach-common/head.S
+++ b/arch/blackfin/mach-common/head.S
@@ -96,9 +96,6 @@ ENTRY(__start)
         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);