add support for atheros ath79 based SOCs

These series of patch add support for atheros ath79 based SOCs in u-boot, at the present moment it's just available for ar933x and qca953x chip.

Changes in v6:
- Remove useless "else"
- Move ar933x as separate patch
- Add get_bootstrap in reset.c
- Use map_physmem instead of KSEG1ADDR
- Add arch_cpu_init for detect SOC type for early
- Define magic value in ddr.c
- Remove wait loop in putc and getc
- Use map_physmem instead of KSEG1ADDR

- Add rrw_delay in ath79_spi_priv for more accurate timing
- Remove ath79_spi_delay
- Calculate delay in ath79_spi_set_speed
- Convert SZ_XXX into hex in ap121.h
- Remove useless CONFIG_SYS_INIT_SP_OFFSET in ap121.h
- Add board_early_init_f for DDR and pin initialization
- Select UART and SPI in ap121_defconfig
- Add support for qca953x

Quoted 12 lines · Wills Wang

These series of patch add support for atheros ath79 based SOCs in u-boot, at the present moment it's just available for ar933x and qca953x chip.

Changes in v6:
- Remove useless "else"
- Move ar933x as separate patch
- Add get_bootstrap in reset.c
- Use map_physmem instead of KSEG1ADDR
- Add arch_cpu_init for detect SOC type for early
- Define magic value in ddr.c
- Remove wait loop in putc and getc
- Use map_physmem instead of KSEG1ADDR

Quoted 8 lines

- Add rrw_delay in ath79_spi_priv for more accurate timing
- Remove ath79_spi_delay
- Calculate delay in ath79_spi_set_speed
- Convert SZ_XXX into hex in ap121.h
- Remove useless CONFIG_SYS_INIT_SP_OFFSET in ap121.h
- Add board_early_init_f for DDR and pin initialization
- Select UART and SPI in ap121_defconfig
- Add support for qca953x

I wanted to try this patchset, so I picked [1], since I didn't feel like fishing out patches from the list. Especially since this wasn't sent as a series, but as separate patches, which makes things annoying.

The [1] does not even compile, which is surprising. I would expect that if you submit patches, you would at least compile-test them. Sigh. I needed this patch:

---8<---

arch/mips/mach-ath79/cpu.c +2 -2

index 2952679..140c65c 100644
@@ -9,8 +9,8 @@
  #include <asm/io.h>
  #include <asm/addrspace.h>
  #include <asm/types.h>
-#include <asm/arch/ath79.h>
-#include <asm/arch/ar71xx_regs.h>
+#include <mach/ath79.h>
+#include <mach/ar71xx_regs.h>
 
  struct ath79_soc_desc {
         enum ath79_soc_type soc;

arch/mips/mach-ath79/reset.c +0 -0

index 410b900..fe32d80 100644

Once I managed to fix things, I compiled ap121. I tried booting it on arduino yun (ar9331), but it hung in start.S in setup_c0_status . If I comment this out, it hangs in lowlevel_init, right at the beginning. That's where I gave up.

[1] http://git.denx.de/?p=u-boot/u-boot-
mips.git;a=shortlog;h=refs/heads/mips_ath79_v6

Best regards,
Marek Vasut

Quoted 68 lines · Marek Vasut

Quoted 13 lines · Wills Wang

These series of patch add support for atheros ath79 based SOCs in u-boot, at the present moment it's just available for ar933x and qca953x chip.

Changes in v6:
- Remove useless "else"
- Move ar933x as separate patch
- Add get_bootstrap in reset.c
- Use map_physmem instead of KSEG1ADDR
- Add arch_cpu_init for detect SOC type for early
- Define magic value in ddr.c
- Remove wait loop in putc and getc
- Use map_physmem instead of KSEG1ADDR

Quoted 8 lines

- Add rrw_delay in ath79_spi_priv for more accurate timing
- Remove ath79_spi_delay
- Calculate delay in ath79_spi_set_speed
- Convert SZ_XXX into hex in ap121.h
- Remove useless CONFIG_SYS_INIT_SP_OFFSET in ap121.h
- Add board_early_init_f for DDR and pin initialization
- Select UART and SPI in ap121_defconfig
- Add support for qca953x

I wanted to try this patchset, so I picked [1], since I didn't feel like fishing out patches from the list. Especially since this wasn't sent as a series, but as separate patches, which makes things annoying.

The [1] does not even compile, which is surprising. I would expect that if you submit patches, you would at least compile-test them. Sigh. I needed this patch:

---8<---

arch/mips/mach-ath79/cpu.c +2 -2

index 2952679..140c65c 100644
@@ -9,8 +9,8 @@
 
  #include <asm/io.h>
  #include <asm/addrspace.h>
  #include <asm/types.h>
 
-#include <asm/arch/ath79.h>
-#include <asm/arch/ar71xx_regs.h>
+#include <mach/ath79.h>
+#include <mach/ar71xx_regs.h>
 

  struct ath79_soc_desc {

         enum ath79_soc_type soc;

arch/mips/mach-ath79/reset.c +1 -1

index 410b900..fe32d80 100644
@@ -9,7 +9,7 @@
 
  #include <asm/io.h>
  #include <asm/addrspace.h>
  #include <asm/types.h>
 
-#include <asm/arch/ath79.h>
+#include <mach/ath79.h>
 

  #include <mach/ar71xx_regs.h>

void _machine_restart(void)

Quoted 1 line

--->8---

Marek, you can try my repository at
https://github.com/willswang/u-boot-ath79,
I have fixed the compiling issue about headers.
I'm very sorry about this compiling error, my work tree have a residual symbol
link between arch/mips/include/asm/arch and arch/mips/mach-ath79/include/mach.
it was not removed when i executed "make clean" to rebuild, so, my compiling
didn't discover this problem before this. now i clone this remote branch into a new
location and find this issue.

Quoted 4 lines

Once I managed to fix things, I compiled ap121. I tried booting it on arduino yun (ar9331), but it hung in start.S in setup_c0_status . If I comment this out, it hangs in lowlevel_init, right at the beginning. That's where I gave up.

Quoted 5 lines

[1] http://git.denx.de/?p=u-boot/u-boot-
mips.git;a=shortlog;h=refs/heads/mips_ath79_v6

Best regards,
Marek Vasut

Quoted 68 lines · Wills Wang

Quoted 67 lines · Marek Vasut

Quoted 13 lines · Wills Wang

These series of patch add support for atheros ath79 based SOCs in u-boot, at the present moment it's just available for ar933x and qca953x chip.

Changes in v6:
- Remove useless "else"
- Move ar933x as separate patch
- Add get_bootstrap in reset.c
- Use map_physmem instead of KSEG1ADDR
- Add arch_cpu_init for detect SOC type for early
- Define magic value in ddr.c
- Remove wait loop in putc and getc
- Use map_physmem instead of KSEG1ADDR

Quoted 8 lines

- Add rrw_delay in ath79_spi_priv for more accurate timing
- Remove ath79_spi_delay
- Calculate delay in ath79_spi_set_speed
- Convert SZ_XXX into hex in ap121.h
- Remove useless CONFIG_SYS_INIT_SP_OFFSET in ap121.h
- Add board_early_init_f for DDR and pin initialization
- Select UART and SPI in ap121_defconfig
- Add support for qca953x

I wanted to try this patchset, so I picked [1], since I didn't feel like fishing out patches from the list. Especially since this wasn't sent as a series, but as separate patches, which makes things annoying.

The [1] does not even compile, which is surprising. I would expect that if you submit patches, you would at least compile-test them. Sigh. I needed this patch:

---8<---

arch/mips/mach-ath79/cpu.c +2 -2

index 2952679..140c65c 100644
@@ -9,8 +9,8 @@
 
   #include <asm/io.h>
   #include <asm/addrspace.h>
   #include <asm/types.h>
 
-#include <asm/arch/ath79.h>
-#include <asm/arch/ar71xx_regs.h>
+#include <mach/ath79.h>
+#include <mach/ar71xx_regs.h>
 

   struct ath79_soc_desc {

          enum ath79_soc_type soc;

arch/mips/mach-ath79/reset.c +1 -1

index 410b900..fe32d80 100644
@@ -9,7 +9,7 @@
 
   #include <asm/io.h>
   #include <asm/addrspace.h>
   #include <asm/types.h>
 
-#include <asm/arch/ath79.h>
+#include <mach/ath79.h>
 

   #include <mach/ar71xx_regs.h>

void _machine_restart(void)

Quoted 13 lines

Quoted 1 line

--->8---

Marek, you can try my repository at
https://github.com/willswang/u-boot-ath79,
I have fixed the compiling issue about headers.
I'm very sorry about this compiling error, my work tree have a residual symbol
link between arch/mips/include/asm/arch and arch/mips/mach-ath79/include/mach.
it was not removed when i executed "make clean" to rebuild, so, my compiling
didn't discover this problem before this. now i clone this remote branch into a new
location and find this issue.

You should do git clean -fdx to zap everything before doing the rebuild and repost. This way, you can be sure that you have no residual stuff in your tree.

Also, if make clean doesn't remove objects , there is some other problem which needs attention.

Quoted 4 lines

Quoted 4 lines

Once I managed to fix things, I compiled ap121. I tried booting it on arduino yun (ar9331), but it hung in start.S in setup_c0_status . If I comment this out, it hangs in lowlevel_init, right at the beginning. That's where I gave up.

What about this one? Did you ever boot-test these patches ? I can probably understand why setup_c0_status might hang, but I don't quite understand why would lowlevel_init hang so early.

Quoted 5 lines

Quoted 5 lines

[1] http://git.denx.de/?p=u-boot/u-boot-
mips.git;a=shortlog;h=refs/heads/mips_ath79_v6

Best regards,
Marek Vasut

Best regards,
Marek Vasut

Quoted 98 lines · Marek Vasut

Quoted 70 lines · Wills Wang

Quoted 69 lines · Marek Vasut

Quoted 13 lines · Wills Wang

These series of patch add support for atheros ath79 based SOCs in u-boot, at the present moment it's just available for ar933x and qca953x chip.

Changes in v6:
- Remove useless "else"
- Move ar933x as separate patch
- Add get_bootstrap in reset.c
- Use map_physmem instead of KSEG1ADDR
- Add arch_cpu_init for detect SOC type for early
- Define magic value in ddr.c
- Remove wait loop in putc and getc
- Use map_physmem instead of KSEG1ADDR

Quoted 8 lines

- Add rrw_delay in ath79_spi_priv for more accurate timing
- Remove ath79_spi_delay
- Calculate delay in ath79_spi_set_speed
- Convert SZ_XXX into hex in ap121.h
- Remove useless CONFIG_SYS_INIT_SP_OFFSET in ap121.h
- Add board_early_init_f for DDR and pin initialization
- Select UART and SPI in ap121_defconfig
- Add support for qca953x

I wanted to try this patchset, so I picked [1], since I didn't feel like fishing out patches from the list. Especially since this wasn't sent as a series, but as separate patches, which makes things annoying.

The [1] does not even compile, which is surprising. I would expect that if you submit patches, you would at least compile-test them. Sigh. I needed this patch:

---8<---

arch/mips/mach-ath79/cpu.c +2 -2

index 2952679..140c65c 100644
@@ -9,8 +9,8 @@
 
   #include <asm/io.h>
   #include <asm/addrspace.h>
   #include <asm/types.h>
 
-#include <asm/arch/ath79.h>
-#include <asm/arch/ar71xx_regs.h>
+#include <mach/ath79.h>
+#include <mach/ar71xx_regs.h>
 

   struct ath79_soc_desc {

          enum ath79_soc_type soc;

(quoted diff) +0 -0

b/arch/mips/mach-ath79/reset.c index 410b900..fe32d80 100644

arch/mips/mach-ath79/reset.c +1 -1

@@ -9,7 +9,7 @@
 
   #include <asm/io.h>
   #include <asm/addrspace.h>
   #include <asm/types.h>
 
-#include <asm/arch/ath79.h>
+#include <mach/ath79.h>
 

   #include <mach/ar71xx_regs.h>

void _machine_restart(void)

Quoted 14 lines

Quoted 1 line

--->8---

Marek, you can try my repository at
https://github.com/willswang/u-boot-ath79,
I have fixed the compiling issue about headers.
I'm very sorry about this compiling error, my work tree have a residual symbol
link between arch/mips/include/asm/arch and arch/mips/mach-ath79/include/mach.
it was not removed when i executed "make clean" to rebuild, so, my compiling
didn't discover this problem before this. now i clone this remote branch into a new
location and find this issue.

You should do git clean -fdx to zap everything before doing the rebuild and repost. This way, you can be sure that you have no residual stuff in your tree.

Also, if make clean doesn't remove objects , there is some other problem which needs attention.

Quoted 4 lines

Quoted 4 lines

Once I managed to fix things, I compiled ap121. I tried booting it on arduino yun (ar9331), but it hung in start.S in setup_c0_status . If I comment this out, it hangs in lowlevel_init, right at the beginning. That's where I gave up.

Quoted 3 lines

What about this one? Did you ever boot-test these patches ? I can probably understand why setup_c0_status might hang, but I don't quite understand why would lowlevel_init hang so early.

Did your board still hang if compiling from my repository?