Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-12-17 08:43:07 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/arch/powerpc/cpu/mpc85xx/p1022_serdes.c

129 lines
3.5 KiB
C
Raw Normal View History

SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
// SPDX-License-Identifier: GPL-2.0+
powerpc: add support for the Freescale P1022DS reference board Specifics: 1) 36-bit only 2) Booting from NOR flash only 3) Environment stored in NOR flash only 4) No SPI support 5) No DIU support Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-06-14 20:28:24 +00:00
/*
* Copyright 2010 Freescale Semiconductor, Inc.
* Author: Timur Tabi <timur@freescale.com>
*/
#include <config.h>
#include <common.h>
#include <asm/io.h>
#include <asm/immap_85xx.h>
#include <asm/fsl_serdes.h>
#define SRDS1_MAX_LANES 4
#define SRDS2_MAX_LANES 2
powerpc/85xx: Rework P1022 SERDES is_serdes_configured support Move serdes init until after we are in ram so we can keep track of a global static protocal map for the particular serdes config we are in. This makes is_serdes_configured() much simplier and not constantly reading registers to determine if a given device is enabled based on the protocol. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-11 17:41:46 +00:00
static u32 serdes1_prtcl_map, serdes2_prtcl_map;
powerpc: add support for the Freescale P1022DS reference board Specifics: 1) 36-bit only 2) Booting from NOR flash only 3) Environment stored in NOR flash only 4) No SPI support 5) No DIU support Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-06-14 20:28:24 +00:00
static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
[0x00] = {NONE, NONE, NONE, NONE},
[0x01] = {NONE, NONE, NONE, NONE},
[0x02] = {NONE, NONE, NONE, NONE},
[0x03] = {NONE, NONE, NONE, NONE},
[0x04] = {NONE, NONE, NONE, NONE},
[0x06] = {PCIE1, PCIE3, SGMII_TSEC1, PCIE2},
[0x07] = {PCIE1, PCIE3, SGMII_TSEC1, PCIE2},
[0x09] = {PCIE1, NONE, NONE, NONE},
[0x0a] = {PCIE1, PCIE3, SGMII_TSEC1, SGMII_TSEC2},
[0x0b] = {PCIE1, PCIE3, SGMII_TSEC1, SGMII_TSEC2},
[0x0d] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2},
[0x0e] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2},
[0x0f] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2},
[0x15] = {PCIE1, PCIE3, PCIE2, PCIE2},
[0x16] = {PCIE1, PCIE3, PCIE2, PCIE2},
[0x17] = {PCIE1, PCIE3, PCIE2, PCIE2},
[0x18] = {PCIE1, PCIE1, PCIE2, PCIE2},
[0x19] = {PCIE1, PCIE1, PCIE2, PCIE2},
[0x1a] = {PCIE1, PCIE1, PCIE2, PCIE2},
[0x1b] = {PCIE1, PCIE1, PCIE2, PCIE2},
[0x1c] = {PCIE1, PCIE1, PCIE1, PCIE1},
[0x1d] = {PCIE1, PCIE1, PCIE2, PCIE2},
[0x1e] = {PCIE1, PCIE1, PCIE2, PCIE2},
[0x1f] = {PCIE1, PCIE1, PCIE2, PCIE2},
};
static const u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
[0x00] = {PCIE3, PCIE3},
[0x01] = {PCIE2, PCIE3},
[0x02] = {SATA1, SATA2},
[0x03] = {SGMII_TSEC1, SGMII_TSEC2},
[0x04] = {NONE, NONE},
[0x06] = {SATA1, SATA2},
[0x07] = {NONE, NONE},
[0x09] = {PCIE3, PCIE2},
[0x0a] = {SATA1, SATA2},
[0x0b] = {NONE, NONE},
[0x0d] = {PCIE3, PCIE2},
[0x0e] = {SATA1, SATA2},
[0x0f] = {NONE, NONE},
[0x15] = {SGMII_TSEC1, SGMII_TSEC2},
[0x16] = {SATA1, SATA2},
[0x17] = {NONE, NONE},
[0x18] = {PCIE3, PCIE3},
[0x19] = {SGMII_TSEC1, SGMII_TSEC2},
[0x1a] = {SATA1, SATA2},
[0x1b] = {NONE, NONE},
[0x1c] = {PCIE3, PCIE3},
[0x1d] = {SGMII_TSEC1, SGMII_TSEC2},
[0x1e] = {SATA1, SATA2},
[0x1f] = {NONE, NONE},
};
int is_serdes_configured(enum srds_prtcl device)
powerpc/85xx: Rework P1022 SERDES is_serdes_configured support Move serdes init until after we are in ram so we can keep track of a global static protocal map for the particular serdes config we are in. This makes is_serdes_configured() much simplier and not constantly reading registers to determine if a given device is enabled based on the protocol. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-11 17:41:46 +00:00
{
fsl: serdes: ensure accessing the initialized maps of serdes protocol Up to now, the function is_serdes_configed() doesn't check if the map of serdes protocol is initialized before accessing it. The function is_serdes_configed() will get wrong result when it was called before the serdes protocol maps initialized. As the first element of the map isn't used for any device, so use it as the flag to indicate if the map has been initialized. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2016-08-02 11:03:22 +00:00
int ret;
if (!(serdes1_prtcl_map & (1 << NONE)))
fsl_serdes_init();
ret = (1 << device) & serdes1_prtcl_map;
powerpc/85xx: Rework P1022 SERDES is_serdes_configured support Move serdes init until after we are in ram so we can keep track of a global static protocal map for the particular serdes config we are in. This makes is_serdes_configured() much simplier and not constantly reading registers to determine if a given device is enabled based on the protocol. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-11 17:41:46 +00:00
if (ret)
return ret;
fsl: serdes: ensure accessing the initialized maps of serdes protocol Up to now, the function is_serdes_configed() doesn't check if the map of serdes protocol is initialized before accessing it. The function is_serdes_configed() will get wrong result when it was called before the serdes protocol maps initialized. As the first element of the map isn't used for any device, so use it as the flag to indicate if the map has been initialized. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2016-08-02 11:03:22 +00:00
if (!(serdes2_prtcl_map & (1 << NONE)))
fsl_serdes_init();
powerpc/85xx: Rework P1022 SERDES is_serdes_configured support Move serdes init until after we are in ram so we can keep track of a global static protocal map for the particular serdes config we are in. This makes is_serdes_configured() much simplier and not constantly reading registers to determine if a given device is enabled based on the protocol. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-11 17:41:46 +00:00
return (1 << device) & serdes2_prtcl_map;
}
void fsl_serdes_init(void)
powerpc: add support for the Freescale P1022DS reference board Specifics: 1) 36-bit only 2) Booting from NOR flash only 3) Environment stored in NOR flash only 4) No SPI support 5) No DIU support Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-06-14 20:28:24 +00:00
{
ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
u32 pordevsr = in_be32(&gur->pordevsr);
u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
MPC85xx_PORDEVSR_IO_SEL_SHIFT;
powerpc/85xx: Rework P1022 SERDES is_serdes_configured support Move serdes init until after we are in ram so we can keep track of a global static protocal map for the particular serdes config we are in. This makes is_serdes_configured() much simplier and not constantly reading registers to determine if a given device is enabled based on the protocol. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-11 17:41:46 +00:00
int lane;
powerpc: add support for the Freescale P1022DS reference board Specifics: 1) 36-bit only 2) Booting from NOR flash only 3) Environment stored in NOR flash only 4) No SPI support 5) No DIU support Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-06-14 20:28:24 +00:00
fsl: serdes: ensure accessing the initialized maps of serdes protocol Up to now, the function is_serdes_configed() doesn't check if the map of serdes protocol is initialized before accessing it. The function is_serdes_configed() will get wrong result when it was called before the serdes protocol maps initialized. As the first element of the map isn't used for any device, so use it as the flag to indicate if the map has been initialized. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2016-08-02 11:03:22 +00:00
if (serdes1_prtcl_map & (1 << NONE) &&
serdes2_prtcl_map & (1 << NONE))
return;
powerpc/85xx: Rework P1022 SERDES is_serdes_configured support Move serdes init until after we are in ram so we can keep track of a global static protocal map for the particular serdes config we are in. This makes is_serdes_configured() much simplier and not constantly reading registers to determine if a given device is enabled based on the protocol. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-11 17:41:46 +00:00
debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
powerpc: add support for the Freescale P1022DS reference board Specifics: 1) 36-bit only 2) Booting from NOR flash only 3) Environment stored in NOR flash only 4) No SPI support 5) No DIU support Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-06-14 20:28:24 +00:00
powerpc: mpc85xx/mpc86xx: Fix off-by-one boundary checking with ARRAY_SIZE If a variable is used as array subscript, it's valid value range is 0 ... ARRAY_SIZE -1. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-05-26 07:00:30 +00:00
if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
powerpc/85xx: Rework P1022 SERDES is_serdes_configured support Move serdes init until after we are in ram so we can keep track of a global static protocal map for the particular serdes config we are in. This makes is_serdes_configured() much simplier and not constantly reading registers to determine if a given device is enabled based on the protocol. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-11 17:41:46 +00:00
printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
return;
}
for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
serdes1_prtcl_map |= (1 << lane_prtcl);
powerpc: add support for the Freescale P1022DS reference board Specifics: 1) 36-bit only 2) Booting from NOR flash only 3) Environment stored in NOR flash only 4) No SPI support 5) No DIU support Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-06-14 20:28:24 +00:00
}
fsl: serdes: ensure accessing the initialized maps of serdes protocol Up to now, the function is_serdes_configed() doesn't check if the map of serdes protocol is initialized before accessing it. The function is_serdes_configed() will get wrong result when it was called before the serdes protocol maps initialized. As the first element of the map isn't used for any device, so use it as the flag to indicate if the map has been initialized. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2016-08-02 11:03:22 +00:00
/* Set the first bit to indicate serdes has been initialized */
serdes1_prtcl_map |= (1 << NONE);
powerpc: mpc85xx/mpc86xx: Fix off-by-one boundary checking with ARRAY_SIZE If a variable is used as array subscript, it's valid value range is 0 ... ARRAY_SIZE -1. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-05-26 07:00:30 +00:00
if (srds_cfg >= ARRAY_SIZE(serdes2_cfg_tbl)) {
powerpc/85xx: Rework P1022 SERDES is_serdes_configured support Move serdes init until after we are in ram so we can keep track of a global static protocal map for the particular serdes config we are in. This makes is_serdes_configured() much simplier and not constantly reading registers to determine if a given device is enabled based on the protocol. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-11 17:41:46 +00:00
printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
return;
powerpc: add support for the Freescale P1022DS reference board Specifics: 1) 36-bit only 2) Booting from NOR flash only 3) Environment stored in NOR flash only 4) No SPI support 5) No DIU support Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-06-14 20:28:24 +00:00
}
powerpc/85xx: Rework P1022 SERDES is_serdes_configured support Move serdes init until after we are in ram so we can keep track of a global static protocal map for the particular serdes config we are in. This makes is_serdes_configured() much simplier and not constantly reading registers to determine if a given device is enabled based on the protocol. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-11 17:41:46 +00:00
for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds_cfg][lane];
serdes2_prtcl_map |= (1 << lane_prtcl);
}
fsl: serdes: ensure accessing the initialized maps of serdes protocol Up to now, the function is_serdes_configed() doesn't check if the map of serdes protocol is initialized before accessing it. The function is_serdes_configed() will get wrong result when it was called before the serdes protocol maps initialized. As the first element of the map isn't used for any device, so use it as the flag to indicate if the map has been initialized. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2016-08-02 11:03:22 +00:00
/* Set the first bit to indicate serdes has been initialized */
serdes2_prtcl_map |= (1 << NONE);
powerpc: add support for the Freescale P1022DS reference board Specifics: 1) 36-bit only 2) Booting from NOR flash only 3) Environment stored in NOR flash only 4) No SPI support 5) No DIU support Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-06-14 20:28:24 +00:00
}
Reference in a new issue Copy permalink