Changeset 31118

Timestamp:

2012-03-27T21:38:17+02:00 (6 years ago)

Author:

juhosg

Message:

ar71xx: boost SPI flash read performance

mtd_speedtest results:

page read speed

old new delta

DB120 929 KiB/s 2597 KiB/s +179.55%
TL-WR1043ND v1 754 KiB/s 2166 KiB/s +187.27%
TL-WR703N v1 745 KiB/s 2176 KiB/s +192.08%
TL-MR3220 v1 752 KiB/s 2154 KiB/s +186.44%
TL-WR2543ND v1 564 KiB/s 2130 KiB/s +277.66%
TL-WR741ND v2 525 KiB/s 1767 KiB/s +236.57%
ALFA-AP96 702 KiB/s 1977 KiB/s +181.62%
WNDR3700 697 KiB/s 1965 KiB/s +181.92%

Location:

trunk/target/linux/ar71xx

Files:

• files/arch/mips/ath79/dev-m25p80.c (modified) (1 diff)
• files/arch/mips/ath79/mach-alfa-ap96.c (modified) (1 diff)
• files/arch/mips/ath79/mach-tl-wr2543n.c (modified) (1 diff)
• patches-3.2/460-spi-bitbang-export-spi_bitbang_bufs.patch (added)
• patches-3.2/461-spi-add-type-field-to-spi_transfer.patch (added)
• patches-3.2/462-mtd-m25p80-set-spi-transfer-type.patch (added)
• patches-3.2/463-spi-ath79-add-fast-flash-read.patch (added)
• patches-3.3/460-spi-bitbang-export-spi_bitbang_bufs.patch (added)
• patches-3.3/461-spi-add-type-field-to-spi_transfer.patch (added)
• patches-3.3/462-mtd-m25p80-set-spi-transfer-type.patch (added)
• patches-3.3/463-spi-ath79-add-fast-flash-read.patch (added)

trunk/target/linux/ar71xx/files/arch/mips/ath79/dev-m25p80.c

@@ -52 +52 @@
         ath79_spi_data.bus_num = 0;
         ath79_spi_data.num_chipselect = 1;
+        ath79_spi0_cdata.is_flash = true;
         ath79_spi_info[0].platform_data = pdata;
         ath79_register_spi(&ath79_spi_data, ath79_spi_info, 1);

trunk/target/linux/ar71xx/files/arch/mips/ath79/mach-alfa-ap96.c

@@ -63 +63 @@
         .cs_type = ATH79_SPI_CS_TYPE_INTERNAL,
         .cs_line = 0,
+        .is_flash = true,
 };
 

trunk/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr2543n.c

@@ -41 +41 @@
 static struct flash_platform_data tl_wr2543n_flash_data = {
         .part_probes    = tl_wr2543n_part_probes,
-        .max_read_len   = 64,
 };