ar71xx: improve SPI flash read/write performance

mtd_speedtest results:

                        page write speed
                    old         new       delta
DB120            209 KiB/s   226 KiB/s     +8.13%
TL-WR1043ND v1   122 KiB/s   148 KiB/s    +21.31%
TL-WR703N v1     153 KiB/s   194 KiB/s    +26.80%
TL-MR3220 v1     130 KiB/s   156 KiB/s    +20.00%
TL-WR2543ND v1   158 KiB/s   202 KiB/s    +27.85%
TL-WR741ND v2    122 KiB/s   152 KiB/s    +24.59%
ALFA AP96        229 KiB/s   260 KiB/s    +13.54%
WNDR3700         202 KiB/s   223 KiB/s    +10.40%

                         page read speed
                    old        new       delta
DB120            691 KiB/s   929 KiB/s    +34.44%
TL-WR1043ND v1   372 KiB/s   754 KiB/s   +102.69%
TL-WR703N v1     375 KiB/s   745 KiB/s    +98.67%
TL-MR3220 v1     372 KiB/s   752 KiB/s   +102.15%
TL-WR2543ND v1   307 KiB/s   564 KiB/s    +83.71%
TL-WR741ND v2    315 KiB/s   525 KiB/s    +66.67%
ALFA AP96        515 KiB/s   702 KiB/s    +36.31%
WNDR3700         515 KiB/s   697 KiB/s    +35.34%

SVN-Revision: 31117

1 files changed, 0 insertions, 105 deletions

diff --git a/target/linux/ar71xx/patches-3.2/208-spi-ath79-make-chip-select-more-flexible.patch b/target/linux/ar71xx/patches-3.2/208-spi-ath79-make-chip-select-more-flexible.patch
deleted file mode 100644
index ed7b360d9c..0000000000
--- a/target/linux/ar71xx/patches-3.2/208-spi-ath79-make-chip-select-more-flexible.patch
+++ /dev/null
@@ -1,105 +0,0 @@
---- a/arch/mips/ath79/mach-ap121.c
-+++ b/arch/mips/ath79/mach-ap121.c
-@@ -58,12 +58,18 @@ static struct gpio_keys_button ap121_gpi
- 	}
- };
- 
-+static struct ath79_spi_controller_data ap121_spi0_data = {
-+	.cs_type = ATH79_SPI_CS_TYPE_INTERNAL,
-+	.cs_line = 0,
-+};
-+
- static struct spi_board_info ap121_spi_info[] = {
- 	{
- 		.bus_num	= 0,
- 		.chip_select	= 0,
- 		.max_speed_hz	= 25000000,
- 		.modalias	= "mx25l1606e",
-+		.controller_data = &ap121_spi0_data,
- 	}
- };
- 
---- a/arch/mips/ath79/mach-ap81.c
-+++ b/arch/mips/ath79/mach-ap81.c
-@@ -67,12 +67,18 @@ static struct gpio_keys_button ap81_gpio
- 	}
- };
- 
-+static struct ath79_spi_controller_data ap81_spi0_data = {
-+	.cs_type = ATH79_SPI_CS_TYPE_INTERNAL,
-+	.cs_line = 0,
-+};
-+
- static struct spi_board_info ap81_spi_info[] = {
- 	{
- 		.bus_num	= 0,
- 		.chip_select	= 0,
- 		.max_speed_hz	= 25000000,
- 		.modalias	= "m25p64",
-+		.controller_data = &ap81_spi0_data,
- 	}
- };
- 
---- a/arch/mips/ath79/mach-db120.c
-+++ b/arch/mips/ath79/mach-db120.c
-@@ -95,12 +95,18 @@ static struct gpio_keys_button db120_gpi
- 	},
- };
- 
-+static struct ath79_spi_controller_data db120_spi0_data = {
-+	.cs_type = ATH79_SPI_CS_TYPE_INTERNAL,
-+	.cs_line = 0,
-+};
-+
- static struct spi_board_info db120_spi_info[] = {
- 	{
- 		.bus_num	= 0,
- 		.chip_select	= 0,
- 		.max_speed_hz	= 25000000,
- 		.modalias	= "s25sl064a",
-+		.controller_data = &db120_spi0_data,
- 	}
- };
- 
---- a/arch/mips/ath79/mach-pb44.c
-+++ b/arch/mips/ath79/mach-pb44.c
-@@ -87,12 +87,18 @@ static struct gpio_keys_button pb44_gpio
- 	}
- };
- 
-+static struct ath79_spi_controller_data pb44_spi0_data = {
-+	.cs_type = ATH79_SPI_CS_TYPE_INTERNAL,
-+	.cs_line = 0,
-+};
-+
- static struct spi_board_info pb44_spi_info[] = {
- 	{
- 		.bus_num	= 0,
- 		.chip_select	= 0,
- 		.max_speed_hz	= 25000000,
- 		.modalias	= "m25p64",
-+		.controller_data = &pb44_spi0_data,
- 	},
- };
- 
---- a/arch/mips/ath79/mach-ubnt-xm.c
-+++ b/arch/mips/ath79/mach-ubnt-xm.c
-@@ -65,12 +65,18 @@ static struct gpio_keys_button ubnt_xm_g
- 	}
- };
- 
-+static struct ath79_spi_controller_data ubnt_xm_spi0_data = {
-+       .cs_type = ATH79_SPI_CS_TYPE_INTERNAL,
-+       .cs_line = 0,
-+};
-+
- static struct spi_board_info ubnt_xm_spi_info[] = {
- 	{
- 		.bus_num	= 0,
- 		.chip_select	= 0,
- 		.max_speed_hz	= 25000000,
- 		.modalias	= "mx25l6405d",
-+		.controller_data = &ubnt_xm_spi0_data,
- 	}
- };
-