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author | Khoronzhuk, Ivan <ivan.khoronzhuk@ti.com> | 2014-10-22 17:18:21 +0300 |
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committer | Tom Rini <trini@ti.com> | 2014-10-23 11:27:28 -0400 |
commit | a43febde4452f254621c0c95d452c89ad498e959 (patch) | |
tree | a4469761aba5c77ffedbc73a40ae7af71e20e729 /drivers/soc/keystone/keystone_serdes.c | |
parent | 497e9e03216bae505a8f06808975d0c4865622f2 (diff) | |
download | u-boot-imx-a43febde4452f254621c0c95d452c89ad498e959.zip u-boot-imx-a43febde4452f254621c0c95d452c89ad498e959.tar.gz u-boot-imx-a43febde4452f254621c0c95d452c89ad498e959.tar.bz2 |
soc: keystone_serdes: create a separate SGMII SerDes driver
This patch split the Keystone II SGMII SerDes related code from
Ethernet driver and create a separate SGMII SerDes driver.
The SerDes driver can be used by others keystone subsystems
like PCI, sRIO, so move it to driver/soc/keystone directory.
Add soc specific drivers directory like in the Linux kernel.
It is going to be used by keysotone soc specific drivers.
Signed-off-by: Hao Zhang <hzhang@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Diffstat (limited to 'drivers/soc/keystone/keystone_serdes.c')
-rw-r--r-- | drivers/soc/keystone/keystone_serdes.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/drivers/soc/keystone/keystone_serdes.c b/drivers/soc/keystone/keystone_serdes.c new file mode 100644 index 0000000..dc4e78d --- /dev/null +++ b/drivers/soc/keystone/keystone_serdes.c @@ -0,0 +1,127 @@ +/* + * TI serdes driver for keystone2. + * + * (C) Copyright 2014 + * Texas Instruments Incorporated, <www.ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> + +void ks2_serdes_sgmii_156p25mhz_setup(void) +{ + unsigned int cnt; + + /* + * configure Serializer/Deserializer (SerDes) hardware. SerDes IP + * hardware vendor published only register addresses and their values + * to be used for configuring SerDes. So had to use hardcoded values + * below. + */ + clrsetbits_le32(0x0232a000, 0xffff0000, 0x00800000); + clrsetbits_le32(0x0232a014, 0x0000ffff, 0x00008282); + clrsetbits_le32(0x0232a060, 0x00ffffff, 0x00142438); + clrsetbits_le32(0x0232a064, 0x00ffff00, 0x00c3c700); + clrsetbits_le32(0x0232a078, 0x0000ff00, 0x0000c000); + + clrsetbits_le32(0x0232a204, 0xff0000ff, 0x38000080); + clrsetbits_le32(0x0232a208, 0x000000ff, 0x00000000); + clrsetbits_le32(0x0232a20c, 0xff000000, 0x02000000); + clrsetbits_le32(0x0232a210, 0xff000000, 0x1b000000); + clrsetbits_le32(0x0232a214, 0x0000ffff, 0x00006fb8); + clrsetbits_le32(0x0232a218, 0xffff00ff, 0x758000e4); + clrsetbits_le32(0x0232a2ac, 0x0000ff00, 0x00004400); + clrsetbits_le32(0x0232a22c, 0x00ffff00, 0x00200800); + clrsetbits_le32(0x0232a280, 0x00ff00ff, 0x00820082); + clrsetbits_le32(0x0232a284, 0xffffffff, 0x1d0f0385); + + clrsetbits_le32(0x0232a404, 0xff0000ff, 0x38000080); + clrsetbits_le32(0x0232a408, 0x000000ff, 0x00000000); + clrsetbits_le32(0x0232a40c, 0xff000000, 0x02000000); + clrsetbits_le32(0x0232a410, 0xff000000, 0x1b000000); + clrsetbits_le32(0x0232a414, 0x0000ffff, 0x00006fb8); + clrsetbits_le32(0x0232a418, 0xffff00ff, 0x758000e4); + clrsetbits_le32(0x0232a4ac, 0x0000ff00, 0x00004400); + clrsetbits_le32(0x0232a42c, 0x00ffff00, 0x00200800); + clrsetbits_le32(0x0232a480, 0x00ff00ff, 0x00820082); + clrsetbits_le32(0x0232a484, 0xffffffff, 0x1d0f0385); + + clrsetbits_le32(0x0232a604, 0xff0000ff, 0x38000080); + clrsetbits_le32(0x0232a608, 0x000000ff, 0x00000000); + clrsetbits_le32(0x0232a60c, 0xff000000, 0x02000000); + clrsetbits_le32(0x0232a610, 0xff000000, 0x1b000000); + clrsetbits_le32(0x0232a614, 0x0000ffff, 0x00006fb8); + clrsetbits_le32(0x0232a618, 0xffff00ff, 0x758000e4); + clrsetbits_le32(0x0232a6ac, 0x0000ff00, 0x00004400); + clrsetbits_le32(0x0232a62c, 0x00ffff00, 0x00200800); + clrsetbits_le32(0x0232a680, 0x00ff00ff, 0x00820082); + clrsetbits_le32(0x0232a684, 0xffffffff, 0x1d0f0385); + + clrsetbits_le32(0x0232a804, 0xff0000ff, 0x38000080); + clrsetbits_le32(0x0232a808, 0x000000ff, 0x00000000); + clrsetbits_le32(0x0232a80c, 0xff000000, 0x02000000); + clrsetbits_le32(0x0232a810, 0xff000000, 0x1b000000); + clrsetbits_le32(0x0232a814, 0x0000ffff, 0x00006fb8); + clrsetbits_le32(0x0232a818, 0xffff00ff, 0x758000e4); + clrsetbits_le32(0x0232a8ac, 0x0000ff00, 0x00004400); + clrsetbits_le32(0x0232a82c, 0x00ffff00, 0x00200800); + clrsetbits_le32(0x0232a880, 0x00ff00ff, 0x00820082); + clrsetbits_le32(0x0232a884, 0xffffffff, 0x1d0f0385); + + clrsetbits_le32(0x0232aa00, 0x0000ff00, 0x00000800); + clrsetbits_le32(0x0232aa08, 0xffff0000, 0x38a20000); + clrsetbits_le32(0x0232aa30, 0x00ffff00, 0x008a8a00); + clrsetbits_le32(0x0232aa84, 0x0000ff00, 0x00000600); + clrsetbits_le32(0x0232aa94, 0xff000000, 0x10000000); + clrsetbits_le32(0x0232aaa0, 0xff000000, 0x81000000); + clrsetbits_le32(0x0232aabc, 0xff000000, 0xff000000); + clrsetbits_le32(0x0232aac0, 0x000000ff, 0x0000008b); + clrsetbits_le32(0x0232ab08, 0xffff0000, 0x583f0000); + clrsetbits_le32(0x0232ab0c, 0x000000ff, 0x0000004e); + clrsetbits_le32(0x0232a000, 0x000000ff, 0x00000003); + clrsetbits_le32(0x0232aa00, 0x000000ff, 0x0000005f); + + clrsetbits_le32(0x0232aa48, 0x00ffff00, 0x00fd8c00); + clrsetbits_le32(0x0232aa54, 0x00ffffff, 0x002fec72); + clrsetbits_le32(0x0232aa58, 0xffffff00, 0x00f92100); + clrsetbits_le32(0x0232aa5c, 0xffffffff, 0x00040060); + clrsetbits_le32(0x0232aa60, 0xffffffff, 0x00008000); + clrsetbits_le32(0x0232aa64, 0xffffffff, 0x0c581220); + clrsetbits_le32(0x0232aa68, 0xffffffff, 0xe13b0602); + clrsetbits_le32(0x0232aa6c, 0xffffffff, 0xb8074cc1); + clrsetbits_le32(0x0232aa70, 0xffffffff, 0x3f02e989); + clrsetbits_le32(0x0232aa74, 0x000000ff, 0x00000001); + clrsetbits_le32(0x0232ab20, 0x00ff0000, 0x00370000); + clrsetbits_le32(0x0232ab1c, 0xff000000, 0x37000000); + clrsetbits_le32(0x0232ab20, 0x000000ff, 0x0000005d); + + /*Bring SerDes out of Reset if SerDes is Shutdown & is in Reset Mode*/ + clrbits_le32(0x0232a010, 1 << 28); + + /* Enable TX and RX via the LANExCTL_STS 0x0000 + x*4 */ + clrbits_le32(0x0232a228, 1 << 29); + writel(0xF800F8C0, 0x0232bfe0); + clrbits_le32(0x0232a428, 1 << 29); + writel(0xF800F8C0, 0x0232bfe4); + clrbits_le32(0x0232a628, 1 << 29); + writel(0xF800F8C0, 0x0232bfe8); + clrbits_le32(0x0232a828, 1 << 29); + writel(0xF800F8C0, 0x0232bfec); + + /*Enable pll via the pll_ctrl 0x0014*/ + writel(0xe0000000, 0x0232bff4) + ; + + /*Waiting for SGMII Serdes PLL lock.*/ + for (cnt = 10000; cnt > 0 && ((readl(0x02090114) & 0x10) == 0); cnt--) + ; + for (cnt = 10000; cnt > 0 && ((readl(0x02090214) & 0x10) == 0); cnt--) + ; + for (cnt = 10000; cnt > 0 && ((readl(0x02090414) & 0x10) == 0); cnt--) + ; + for (cnt = 10000; cnt > 0 && ((readl(0x02090514) & 0x10) == 0); cnt--) + ; + + udelay(45000); +} |