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openwrt-xburst/target/linux/ar71xx/patches-3.2/208-MIPS-ath79-db120-spi-chipselect-fix.patch

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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% git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31117 3c298f89-4303-0410-b956-a3cf2f4a3e73
2012-03-27 22:38:15 +03:00
--- 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,
}
};
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