Re: [PATCH 1/2] arm: mvebu: turris_mox: Convert comphy_update_map() to board_fix_fdt()

On 1/18/22 10:33, Pali Rohár wrote:

Code in board_fix_fdt() already detects connected MOX modules so there is no need to have custom comphy_update_map() function for setting serdes speeds.

This change sets phy-mode for MOX SFP module (when present) to sgmii. Comphy driver then sets sgmii serdes speed for this module to 1.25G.

Signed-off-by: Pali Rohár pali@kernel.org

Reviewed-by: Stefan Roese sr@denx.de

Thanks, Stefan

---

board/CZ.NIC/turris_mox/turris_mox.c | 48 +++++++++------------------- 1 file changed, 15 insertions(+), 33 deletions(-)

diff --git a/board/CZ.NIC/turris_mox/turris_mox.c b/board/CZ.NIC/turris_mox/turris_mox.c index 3eb5cb425606..f0c5aa6a520b 100644 --- a/board/CZ.NIC/turris_mox/turris_mox.c +++ b/board/CZ.NIC/turris_mox/turris_mox.c @@ -21,7 +21,6 @@ #include <linux/libfdt.h> #include <linux/string.h> #include <miiphy.h> -#include <mvebu/comphy.h> #include <spi.h>

#include "mox_sp.h" @@ -49,6 +48,7 @@ int board_fix_fdt(void *blob) enum fdt_status status_pcie, status_eth1; u8 topology[MAX_MOX_MODULES]; int i, size, ret;

• bool eth1_sgmii;

  /*

  • SPI driver is not loaded in driver model yet, but we have to find out

@@ -69,6 +69,7 @@ int board_fix_fdt(void *blob)

status_pcie = FDT_STATUS_DISABLED; status_eth1 = FDT_STATUS_DISABLED;

• eth1_sgmii = false;

  for (i = 0; i < MAX_MOX_MODULES; ++i) { writel(0x0, ARMADA_37XX_SPI_DOUT);

@@ -82,6 +83,10 @@ int board_fix_fdt(void *blob)

topology[i] &= 0xf;

• if (topology[i] == MOX_MODULE_SFP &&
  

•     status_pcie == FDT_STATUS_DISABLED)
  

• 	eth1_sgmii = true;
  

• if (topology[i] == MOX_MODULE_SFP || topology[i] == MOX_MODULE_TOPAZ || topology[i] == MOX_MODULE_PERIDOT)

@@ -98,6 +103,15 @@ int board_fix_fdt(void *blob) printf("Cannot set status for eth1 in U-Boot's device tree: %s!\n", fdt_strerror(ret));

• if (eth1_sgmii) {

• ret = fdt_path_offset(blob, "ethernet1");
  

• if (ret >= 0)
  

• 	ret = fdt_setprop_string(blob, ret, "phy-mode", "sgmii");
  

• if (ret < 0)
  

• 	printf("Cannot set phy-mode for eth1 to sgmii in U-Boot device tree: %s!\n",
  

• 	       fdt_strerror(ret));
  

• }
• if (size > 1 && (topology[1] == MOX_MODULE_PCI || topology[1] == MOX_MODULE_USB3 || topology[1] == MOX_MODULE_PASSPCI))

@@ -199,38 +213,6 @@ static int mox_get_topology(const u8 **ptopology, int *psize, int *pis_sd) return 0; }

-int comphy_update_map(struct comphy_map *serdes_map, int count) -{

• int ret, i, size, sfpindex = -1, swindex = -1;
• const u8 *topology;
• ret = mox_get_topology(&topology, &size, NULL);
• if (ret)

• return ret;
  

• for (i = 0; i < size; ++i) {

• if (topology[i] == MOX_MODULE_SFP && sfpindex == -1)
  

• 	sfpindex = i;
  

• else if ((topology[i] == MOX_MODULE_TOPAZ ||
  

• 	  topology[i] == MOX_MODULE_PERIDOT) &&
  

• 	 swindex == -1)
  

• 	swindex = i;
  

• }
• if (sfpindex >= 0 && swindex >= 0) {

• if (sfpindex < swindex)
  

• 	serdes_map[0].speed = COMPHY_SPEED_1_25G;
  

• else
  

• 	serdes_map[0].speed = COMPHY_SPEED_3_125G;
  

• } else if (sfpindex >= 0) {

• serdes_map[0].speed = COMPHY_SPEED_1_25G;
  

• } else if (swindex >= 0) {

• serdes_map[0].speed = COMPHY_SPEED_3_125G;
  

• }
• return 0;

-}

• #define SW_SMI_CMD_R(d, r) (0x9800 | (((d) & 0x1f) << 5) | ((r) & 0x1f)) #define SW_SMI_CMD_W(d, r) (0x9400 | (((d) & 0x1f) << 5) | ((r) & 0x1f))

Viele Grüße, Stefan Roese