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This is regression of commit 2035d77d i2c: sh_i2c: Update to new CONFIG_SYS_I2C framework
Before commit 2035d77d, i2c probe command works properly on kzm9g board.
KZM-A9-GT# i2c probe
Valid chip addresses: 0C 12 1D 32 39 3D 40 60
After commit 2035d77d, i2c probe command does not work.
KZM-A9-GT# i2c probe
Valid chip addresses: 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F 60 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7D 7E 7F
sh_i2c_probe() calls sh_i2c_read(), but read length is 0. So acutally it does not read device at all. This patch prepares dummy buffer and read data into it.
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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This updates to new I2C framwwork on sh_i2c.
And this also updates boards(kzm9g and ecovec) that using sh_i2c.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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If user uses the I2C in before the relocation, board of sh and rmobile
will not start. This will solve this problem.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
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Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
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Use setbits/clrbits macro when read-modify-write register.
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
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Before this patch, i2c_{read,write} always returned 0.
Check TACK in i2c_raw_{read,write} so that i2c_{read,write} return non-zero when error.
Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
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Before this patch i2c_probe() always returned 0 and "i2c probe" command did not work properly.
Modify i2c_set_addr() to check TACK when waiting DTE and make i2c_probe() call this function.
Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
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sh_i2c.c support I2C0 and I2C1. This patch extends it to I2C4.
Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
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Adjust i2c_raw_read() in sh_i2c.c to work for SH73A0.
After this patch, "i2c md" and "i2c mw" command on U-Boot work properly on KZM-A9-GT board.
Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
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Correct BUSY bit define in ICSR from (1<<3) to (1<<4).
Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
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R-mobile SoC (at least SH73A0) has extension bits to store 8th bit of iccl and icch.
This patch add support for the extentin bits.
Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
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irq_wait function is not referred to from anywhere.
Reported-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
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This supports I2C of Renesas SH.
I tested on SH7724.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Heiko Schocher <hs@denx.de>
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