diff options
Diffstat (limited to 'recipes-kernel/linux/linux-raspberrypi/sl030raspberrypii2ckernel.patch')
| -rw-r--r-- | recipes-kernel/linux/linux-raspberrypi/sl030raspberrypii2ckernel.patch | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/recipes-kernel/linux/linux-raspberrypi/sl030raspberrypii2ckernel.patch b/recipes-kernel/linux/linux-raspberrypi/sl030raspberrypii2ckernel.patch deleted file mode 100644 index 8534ecb..0000000 --- a/recipes-kernel/linux/linux-raspberrypi/sl030raspberrypii2ckernel.patch +++ /dev/null @@ -1,32 +0,0 @@ -Fix i2c timing errors. - -When Transmitting: Make SDA valid quarter of a cycle after the falling edge of SCL. -When Receiving: Sample SDA Quarter of a cycle after the rising edge of SCL. - -Upstream-Status: Pending - -RP 2013/04/21 - -Index: git/drivers/i2c/busses/i2c-bcm2708.c -=================================================================== ---- git.orig/drivers/i2c/busses/i2c-bcm2708.c 2013-01-06 17:15:00.754954587 +0000 -+++ git/drivers/i2c/busses/i2c-bcm2708.c 2013-01-06 17:50:09.794905741 +0000 -@@ -150,6 +150,7 @@ - unsigned long bus_hz; - u32 cdiv; - u32 c = BSC_C_I2CEN | BSC_C_INTD | BSC_C_ST | BSC_C_CLEAR_1; -+ u32 cdel; - - bus_hz = clk_get_rate(bi->clk); - cdiv = bus_hz / baudrate; -@@ -163,6 +164,10 @@ - bcm2708_wr(bi, BSC_A, bi->msg->addr); - bcm2708_wr(bi, BSC_DLEN, bi->msg->len); - bcm2708_wr(bi, BSC_C, c); -+ -+ cdel = (cdiv / 4) & 0xffff; -+ cdel = cdel << 16 | cdel; -+ bcm2708_wr(bi, BSC_DEL, cdel); - } - - static irqreturn_t bcm2708_i2c_interrupt(int irq, void *dev_id) |