From: Aaron Williams awilliams@marvell.com
Import cvmx-helper-ilk.c from 2013 U-Boot. It will be used by the later added drivers to support networking on the MIPS Octeon II / III platforms.
Signed-off-by: Aaron Williams awilliams@marvell.com Signed-off-by: Stefan Roese sr@denx.de --- arch/mips/mach-octeon/cvmx-helper-ilk.c | 902 ++++++++++++++++++++++++ 1 file changed, 902 insertions(+) create mode 100644 arch/mips/mach-octeon/cvmx-helper-ilk.c
diff --git a/arch/mips/mach-octeon/cvmx-helper-ilk.c b/arch/mips/mach-octeon/cvmx-helper-ilk.c new file mode 100644 index 000000000000..9e882f133323 --- /dev/null +++ b/arch/mips/mach-octeon/cvmx-helper-ilk.c @@ -0,0 +1,902 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018-2022 Marvell International Ltd. + * + * Functions for ILK initialization, configuration, + * and monitoring. + */ + +#include <time.h> +#include <log.h> +#include <linux/delay.h> + +#include <mach/cvmx-regs.h> +#include <mach/cvmx-csr.h> +#include <mach/cvmx-bootmem.h> +#include <mach/octeon-model.h> +#include <mach/cvmx-fuse.h> +#include <mach/octeon-feature.h> +#include <mach/cvmx-qlm.h> +#include <mach/octeon_qlm.h> +#include <mach/cvmx-pcie.h> +#include <mach/cvmx-coremask.h> + +#include <mach/cvmx-agl-defs.h> +#include <mach/cvmx-bgxx-defs.h> +#include <mach/cvmx-ciu-defs.h> +#include <mach/cvmx-gmxx-defs.h> +#include <mach/cvmx-ilk-defs.h> +#include <mach/cvmx-ipd-defs.h> +#include <mach/cvmx-pcsx-defs.h> +#include <mach/cvmx-pcsxx-defs.h> +#include <mach/cvmx-pki-defs.h> +#include <mach/cvmx-pko-defs.h> +#include <mach/cvmx-xcv-defs.h> + +#include <mach/cvmx-hwpko.h> +#include <mach/cvmx-ilk.h> +#include <mach/cvmx-pki.h> + +#include <mach/cvmx-helper.h> +#include <mach/cvmx-helper-board.h> +#include <mach/cvmx-helper-cfg.h> + +int __cvmx_helper_ilk_enumerate(int xiface) +{ + struct cvmx_xiface xi = cvmx_helper_xiface_to_node_interface(xiface); + + xi.interface -= CVMX_ILK_GBL_BASE(); + return cvmx_ilk_chans[xi.node][xi.interface]; +} + +/** + * @INTERNAL + * Initialize all tx calendar entries to the xoff state. + * Initialize all rx calendar entries to the xon state. The rx calendar entries + * must be in the xon state to allow new pko pipe assignments. If a calendar + * entry is assigned a different pko pipe while in the xoff state, the old pko + * pipe will stay in the xoff state even when no longer used by ilk. + * + * @param intf Interface whose calendar are to be initialized. + */ +static void __cvmx_ilk_clear_cal_cn78xx(int intf) +{ + cvmx_ilk_txx_cal_entryx_t tx_entry; + cvmx_ilk_rxx_cal_entryx_t rx_entry; + int i; + int node = (intf >> 4) & 0xf; + int interface = (intf & 0xf); + + /* Initialize all tx calendar entries to off */ + tx_entry.u64 = 0; + tx_entry.s.ctl = XOFF; + for (i = 0; i < CVMX_ILK_MAX_CAL; i++) { + csr_wr_node(node, CVMX_ILK_TXX_CAL_ENTRYX(i, interface), + tx_entry.u64); + } + + /* Initialize all rx calendar entries to on */ + rx_entry.u64 = 0; + rx_entry.s.ctl = XOFF; + for (i = 0; i < CVMX_ILK_MAX_CAL; i++) { + csr_wr_node(node, CVMX_ILK_RXX_CAL_ENTRYX(i, interface), + rx_entry.u64); + } +} + +/** + * @INTERNAL + * Initialize all tx calendar entries to the xoff state. + * Initialize all rx calendar entries to the xon state. The rx calendar entries + * must be in the xon state to allow new pko pipe assignments. If a calendar + * entry is assigned a different pko pipe while in the xoff state, the old pko + * pipe will stay in the xoff state even when no longer used by ilk. + * + * @param interface whose calendar are to be initialized. + */ +static void __cvmx_ilk_clear_cal_cn68xx(int interface) +{ + cvmx_ilk_txx_idx_cal_t tx_idx; + cvmx_ilk_txx_mem_cal0_t tx_cal0; + cvmx_ilk_txx_mem_cal1_t tx_cal1; + cvmx_ilk_rxx_idx_cal_t rx_idx; + cvmx_ilk_rxx_mem_cal0_t rx_cal0; + cvmx_ilk_rxx_mem_cal1_t rx_cal1; + int i; + + /* + * First we initialize the tx calendar starting from entry 0, + * incrementing the entry with every write. + */ + tx_idx.u64 = 0; + tx_idx.s.inc = 1; + csr_wr(CVMX_ILK_TXX_IDX_CAL(interface), tx_idx.u64); + + /* Set state to xoff for all entries */ + tx_cal0.u64 = 0; + tx_cal0.s.entry_ctl0 = XOFF; + tx_cal0.s.entry_ctl1 = XOFF; + tx_cal0.s.entry_ctl2 = XOFF; + tx_cal0.s.entry_ctl3 = XOFF; + + tx_cal1.u64 = 0; + tx_cal1.s.entry_ctl4 = XOFF; + tx_cal1.s.entry_ctl5 = XOFF; + tx_cal1.s.entry_ctl6 = XOFF; + tx_cal1.s.entry_ctl7 = XOFF; + + /* Write all 288 entries */ + for (i = 0; i < CVMX_ILK_MAX_CAL_IDX; i++) { + csr_wr(CVMX_ILK_TXX_MEM_CAL0(interface), tx_cal0.u64); + csr_wr(CVMX_ILK_TXX_MEM_CAL1(interface), tx_cal1.u64); + } + + /* + * Next we initialize the rx calendar starting from entry 0, + * incrementing the entry with every write. + */ + rx_idx.u64 = 0; + rx_idx.s.inc = 1; + csr_wr(CVMX_ILK_RXX_IDX_CAL(interface), rx_idx.u64); + + /* Set state to xon for all entries */ + rx_cal0.u64 = 0; + rx_cal0.s.entry_ctl0 = XON; + rx_cal0.s.entry_ctl1 = XON; + rx_cal0.s.entry_ctl2 = XON; + rx_cal0.s.entry_ctl3 = XON; + + rx_cal1.u64 = 0; + rx_cal1.s.entry_ctl4 = XON; + rx_cal1.s.entry_ctl5 = XON; + rx_cal1.s.entry_ctl6 = XON; + rx_cal1.s.entry_ctl7 = XON; + + /* Write all 288 entries */ + for (i = 0; i < CVMX_ILK_MAX_CAL_IDX; i++) { + csr_wr(CVMX_ILK_RXX_MEM_CAL0(interface), rx_cal0.u64); + csr_wr(CVMX_ILK_RXX_MEM_CAL1(interface), rx_cal1.u64); + } +} + +/** + * @INTERNAL + * Initialize all calendar entries. + * + * @param interface whose calendar is to be initialized. + */ +void __cvmx_ilk_clear_cal(int interface) +{ + if (OCTEON_IS_MODEL(OCTEON_CN68XX)) + __cvmx_ilk_clear_cal_cn68xx(interface); + else if (OCTEON_IS_MODEL(OCTEON_CN78XX)) + __cvmx_ilk_clear_cal_cn78xx(interface); +} + +void __cvmx_ilk_write_tx_cal_entry_cn68xx(int interface, int channel, + unsigned char bpid) +{ + cvmx_ilk_txx_idx_cal_t tx_idx; + cvmx_ilk_txx_mem_cal0_t tx_cal0; + cvmx_ilk_txx_mem_cal1_t tx_cal1; + int entry; + int window; + int window_entry; + + /* + * The calendar has 288 entries. Each calendar entry represents a + * channel's flow control state or the link flow control state. + * Starting with the first entry, every sixteenth entry is used for the + * link flow control state. The other 15 entries are used for the + * channels flow control state: + * entry 0 ----> link flow control state + * entry 1 ----> channel 0 flow control state + * entry 2 ----> channel 1 flow control state + * ... + * entry 15 ----> channel 14 flow control state + * entry 16 ----> link flow control state + * entry 17 ----> channel 15 flow control state + * + * Also, the calendar is accessed via windows into it. Each window maps + * to 8 entries. + */ + entry = 1 + channel + (channel / 15); + window = entry / 8; + window_entry = entry % 8; + + /* Indicate the window we need to access */ + tx_idx.u64 = 0; + tx_idx.s.index = window; + csr_wr(CVMX_ILK_TXX_IDX_CAL(interface), tx_idx.u64); + + /* Get the window's current value */ + tx_cal0.u64 = csr_rd(CVMX_ILK_TXX_MEM_CAL0(interface)); + tx_cal1.u64 = csr_rd(CVMX_ILK_TXX_MEM_CAL1(interface)); + + /* Force every sixteenth entry as link flow control state */ + if ((window & 1) == 0) + tx_cal0.s.entry_ctl0 = LINK; + + /* Update the entry */ + switch (window_entry) { + case 0: + tx_cal0.s.entry_ctl0 = 0; + tx_cal0.s.bpid0 = bpid; + break; + case 1: + tx_cal0.s.entry_ctl1 = 0; + tx_cal0.s.bpid1 = bpid; + break; + case 2: + tx_cal0.s.entry_ctl2 = 0; + tx_cal0.s.bpid2 = bpid; + break; + case 3: + tx_cal0.s.entry_ctl3 = 0; + tx_cal0.s.bpid3 = bpid; + break; + case 4: + tx_cal1.s.entry_ctl4 = 0; + tx_cal1.s.bpid4 = bpid; + break; + case 5: + tx_cal1.s.entry_ctl5 = 0; + tx_cal1.s.bpid5 = bpid; + break; + case 6: + tx_cal1.s.entry_ctl6 = 0; + tx_cal1.s.bpid6 = bpid; + break; + case 7: + tx_cal1.s.entry_ctl7 = 0; + tx_cal1.s.bpid7 = bpid; + break; + } + + /* Write the window new value */ + csr_wr(CVMX_ILK_TXX_MEM_CAL0(interface), tx_cal0.u64); + csr_wr(CVMX_ILK_TXX_MEM_CAL1(interface), tx_cal1.u64); +} + +void __cvmx_ilk_write_tx_cal_entry_cn78xx(int intf, int channel, + unsigned char bpid) +{ + cvmx_ilk_txx_cal_entryx_t tx_cal; + int calender_16_block = channel / 15; + int calender_16_index = channel % 15 + 1; + int index = calender_16_block * 16 + calender_16_index; + int node = (intf >> 4) & 0xf; + int interface = intf & 0xf; + + /* Program the link status on first channel */ + if (calender_16_index == 1) { + tx_cal.u64 = 0; + tx_cal.s.ctl = 1; + csr_wr_node(node, CVMX_ILK_TXX_CAL_ENTRYX(index - 1, interface), + tx_cal.u64); + } + tx_cal.u64 = 0; + tx_cal.s.ctl = 0; + tx_cal.s.channel = channel; + csr_wr_node(node, CVMX_ILK_TXX_CAL_ENTRYX(index, interface), + tx_cal.u64); +} + +/** + * @INTERNAL + * Setup the channel's tx calendar entry. + * + * @param interface channel belongs to + * @param channel whose calendar entry is to be updated + * @param bpid assigned to the channel + */ +void __cvmx_ilk_write_tx_cal_entry(int interface, int channel, + unsigned char bpid) +{ + if (OCTEON_IS_MODEL(OCTEON_CN68XX)) + __cvmx_ilk_write_tx_cal_entry_cn68xx(interface, channel, bpid); + else + __cvmx_ilk_write_tx_cal_entry_cn78xx(interface, channel, bpid); +} + +void __cvmx_ilk_write_rx_cal_entry_cn78xx(int intf, int channel, + unsigned char bpid) +{ + cvmx_ilk_rxx_cal_entryx_t rx_cal; + int calender_16_block = channel / 15; + int calender_16_index = channel % 15 + 1; + int index = calender_16_block * 16 + calender_16_index; + int node = (intf >> 4) & 0xf; + int interface = intf & 0xf; + + /* Program the link status on first channel */ + if (calender_16_index == 1) { + rx_cal.u64 = 0; + rx_cal.s.ctl = 1; + csr_wr_node(node, CVMX_ILK_RXX_CAL_ENTRYX(index - 1, interface), + rx_cal.u64); + } + rx_cal.u64 = 0; + rx_cal.s.ctl = 0; + rx_cal.s.channel = channel; + csr_wr_node(node, CVMX_ILK_RXX_CAL_ENTRYX(index, interface), + rx_cal.u64); +} + +void __cvmx_ilk_write_rx_cal_entry_cn68xx(int interface, int channel, + unsigned char pipe) +{ + cvmx_ilk_rxx_idx_cal_t rx_idx; + cvmx_ilk_rxx_mem_cal0_t rx_cal0; + cvmx_ilk_rxx_mem_cal1_t rx_cal1; + int entry; + int window; + int window_entry; + + /* + * The calendar has 288 entries. Each calendar entry represents a + * channel's flow control state or the link flow control state. + * Starting with the first entry, every sixteenth entry is used for the + * link flow control state. The other 15 entries are used for the + * channels flow control state: + * entry 0 ----> link flow control state + * entry 1 ----> channel 0 flow control state + * entry 2 ----> channel 1 flow control state + * ... + * entry 15 ----> channel 14 flow control state + * entry 16 ----> link flow control state + * entry 17 ----> channel 15 flow control state + * + * Also, the calendar is accessed via windows into it. Each window maps + * to 8 entries. + */ + entry = 1 + channel + (channel / 15); + window = entry / 8; + window_entry = entry % 8; + + /* Indicate the window we need to access */ + rx_idx.u64 = 0; + rx_idx.s.index = window; + csr_wr(CVMX_ILK_RXX_IDX_CAL(interface), rx_idx.u64); + + /* Get the window's current value */ + rx_cal0.u64 = csr_rd(CVMX_ILK_RXX_MEM_CAL0(interface)); + rx_cal1.u64 = csr_rd(CVMX_ILK_RXX_MEM_CAL1(interface)); + + /* Force every sixteenth entry as link flow control state */ + if ((window & 1) == 0) + rx_cal0.s.entry_ctl0 = LINK; + + /* Update the entry */ + switch (window_entry) { + case 0: + rx_cal0.s.entry_ctl0 = 0; + rx_cal0.s.port_pipe0 = pipe; + break; + case 1: + rx_cal0.s.entry_ctl1 = 0; + rx_cal0.s.port_pipe1 = pipe; + break; + case 2: + rx_cal0.s.entry_ctl2 = 0; + rx_cal0.s.port_pipe2 = pipe; + break; + case 3: + rx_cal0.s.entry_ctl3 = 0; + rx_cal0.s.port_pipe3 = pipe; + break; + case 4: + rx_cal1.s.entry_ctl4 = 0; + rx_cal1.s.port_pipe4 = pipe; + break; + case 5: + rx_cal1.s.entry_ctl5 = 0; + rx_cal1.s.port_pipe5 = pipe; + break; + case 6: + rx_cal1.s.entry_ctl6 = 0; + rx_cal1.s.port_pipe6 = pipe; + break; + case 7: + rx_cal1.s.entry_ctl7 = 0; + rx_cal1.s.port_pipe7 = pipe; + break; + } + + /* Write the window new value */ + csr_wr(CVMX_ILK_RXX_MEM_CAL0(interface), rx_cal0.u64); + csr_wr(CVMX_ILK_RXX_MEM_CAL1(interface), rx_cal1.u64); +} + +/** + * @INTERNAL + * Setup the channel's rx calendar entry. + * + * @param interface channel belongs to + * @param channel whose calendar entry is to be updated + * @param pipe PKO assigned to the channel + */ +void __cvmx_ilk_write_rx_cal_entry(int interface, int channel, + unsigned char pipe) +{ + if (OCTEON_IS_MODEL(OCTEON_CN68XX)) + __cvmx_ilk_write_rx_cal_entry_cn68xx(interface, channel, pipe); + else + __cvmx_ilk_write_rx_cal_entry_cn78xx(interface, channel, pipe); +} + +/** + * @INTERNAL + * Probe a ILK interface and determine the number of ports + * connected to it. The ILK interface should still be down + * after this call. + * + * @param xiface Interface to probe + * + * @return Number of ports on the interface. Zero to disable. + */ +int __cvmx_helper_ilk_probe(int xiface) +{ + int res = 0; + int interface; + struct cvmx_xiface xi = cvmx_helper_xiface_to_node_interface(xiface); + + if (!octeon_has_feature(OCTEON_FEATURE_ILK)) + return res; + + interface = xi.interface - CVMX_ILK_GBL_BASE(); + if (interface >= CVMX_NUM_ILK_INTF) + return 0; + + /* the configuration should be done only once */ + if (cvmx_ilk_get_intf_ena(xiface)) + return cvmx_ilk_chans[xi.node][interface]; + + /* configure lanes and enable the link */ + res = cvmx_ilk_start_interface(((xi.node << 4) | interface), + cvmx_ilk_lane_mask[xi.node][interface]); + if (res < 0) + return 0; + + res = __cvmx_helper_ilk_enumerate(xiface); + + return res; +} + +static int __cvmx_helper_ilk_init_port_cn68xx(int xiface) +{ + int i, j, res = -1; + static int pipe_base = 0, pknd_base; + static cvmx_ilk_pipe_chan_t *pch = NULL, *tmp; + static cvmx_ilk_chan_pknd_t *chpknd = NULL, *tmp1; + static cvmx_ilk_cal_entry_t *calent = NULL, *tmp2; + int enable_rx_cal = 1; + int interface; + struct cvmx_xiface xi = cvmx_helper_xiface_to_node_interface(xiface); + int intf; + int num_chans; + + interface = xi.interface - CVMX_ILK_GBL_BASE(); + intf = (xi.node << 4) | interface; + if (interface >= CVMX_NUM_ILK_INTF) + return 0; + + num_chans = cvmx_ilk_chans[0][interface]; + + /* set up channel to pkind mapping */ + if (pknd_base == 0) + pknd_base = cvmx_helper_get_pknd(xiface, 0); + + /* set up the group of pipes available to ilk */ + if (pipe_base == 0) + pipe_base = + __cvmx_pko_get_pipe(interface + CVMX_ILK_GBL_BASE(), 0); + + if (pipe_base == -1) { + pipe_base = 0; + return 0; + } + + res = cvmx_ilk_set_pipe(xiface, pipe_base, + cvmx_ilk_chans[0][interface]); + if (res < 0) + return 0; + + /* set up pipe to channel mapping */ + i = pipe_base; + if (!pch) { + pch = (cvmx_ilk_pipe_chan_t *)cvmx_bootmem_alloc( + num_chans * sizeof(cvmx_ilk_pipe_chan_t), + sizeof(cvmx_ilk_pipe_chan_t)); + if (!pch) + return 0; + } + + memset(pch, 0, num_chans * sizeof(cvmx_ilk_pipe_chan_t)); + tmp = pch; + for (j = 0; j < num_chans; j++) { + tmp->pipe = i++; + tmp->chan = j; + tmp++; + } + res = cvmx_ilk_tx_set_channel(interface, pch, + cvmx_ilk_chans[0][interface]); + if (res < 0) { + res = 0; + goto err_free_pch; + } + pipe_base += cvmx_ilk_chans[0][interface]; + i = pknd_base; + if (!chpknd) { + chpknd = (cvmx_ilk_chan_pknd_t *)cvmx_bootmem_alloc( + CVMX_ILK_MAX_PKNDS * sizeof(cvmx_ilk_chan_pknd_t), + sizeof(cvmx_ilk_chan_pknd_t)); + if (!chpknd) { + pipe_base -= cvmx_ilk_chans[xi.node][interface]; + res = 0; + goto err_free_pch; + } + } + + memset(chpknd, 0, CVMX_ILK_MAX_PKNDS * sizeof(cvmx_ilk_chan_pknd_t)); + tmp1 = chpknd; + for (j = 0; j < cvmx_ilk_chans[xi.node][interface]; j++) { + tmp1->chan = j; + tmp1->pknd = i++; + tmp1++; + } + + res = cvmx_ilk_rx_set_pknd(xiface, chpknd, + cvmx_ilk_chans[xi.node][interface]); + if (res < 0) { + pipe_base -= cvmx_ilk_chans[xi.node][interface]; + res = 0; + goto err_free_chpknd; + } + pknd_base += cvmx_ilk_chans[xi.node][interface]; + + /* Set up tx calendar */ + if (!calent) { + calent = (cvmx_ilk_cal_entry_t *)cvmx_bootmem_alloc( + CVMX_ILK_MAX_PIPES * sizeof(cvmx_ilk_cal_entry_t), + sizeof(cvmx_ilk_cal_entry_t)); + if (!calent) { + pipe_base -= cvmx_ilk_chans[xi.node][interface]; + pknd_base -= cvmx_ilk_chans[xi.node][interface]; + res = 0; + goto err_free_chpknd; + } + } + + memset(calent, 0, CVMX_ILK_MAX_PIPES * sizeof(cvmx_ilk_cal_entry_t)); + tmp1 = chpknd; + tmp2 = calent; + for (j = 0; j < cvmx_ilk_chans[xi.node][interface]; j++) { + tmp2->pipe_bpid = tmp1->pknd; + tmp2->ent_ctrl = PIPE_BPID; + tmp1++; + tmp2++; + } + res = cvmx_ilk_cal_setup_tx(intf, cvmx_ilk_chans[xi.node][interface], + calent, 1); + if (res < 0) { + pipe_base -= cvmx_ilk_chans[xi.node][interface]; + pknd_base -= cvmx_ilk_chans[xi.node][interface]; + res = 0; + goto err_free_calent; + } + + /* set up rx calendar. allocated memory can be reused. + * this is because max pkind is always less than max pipe + */ + memset(calent, 0, CVMX_ILK_MAX_PIPES * sizeof(cvmx_ilk_cal_entry_t)); + tmp = pch; + tmp2 = calent; + for (j = 0; j < cvmx_ilk_chans[0][interface]; j++) { + tmp2->pipe_bpid = tmp->pipe; + tmp2->ent_ctrl = PIPE_BPID; + tmp++; + tmp2++; + } + if (cvmx_ilk_use_la_mode(interface, 0)) + enable_rx_cal = cvmx_ilk_la_mode_enable_rx_calendar(interface); + else + enable_rx_cal = 1; + + res = cvmx_ilk_cal_setup_rx(intf, cvmx_ilk_chans[xi.node][interface], + calent, CVMX_ILK_RX_FIFO_WM, enable_rx_cal); + if (res < 0) { + pipe_base -= cvmx_ilk_chans[xi.node][interface]; + pknd_base -= cvmx_ilk_chans[xi.node][interface]; + res = 0; + goto err_free_calent; + } + goto out; + +err_free_calent: + /* no free() for cvmx_bootmem_alloc() */ + +err_free_chpknd: + /* no free() for cvmx_bootmem_alloc() */ + +err_free_pch: + /* no free() for cvmx_bootmem_alloc() */ +out: + return res; +} + +static int __cvmx_helper_ilk_init_port_cn78xx(int xiface) +{ + struct cvmx_xiface xi = cvmx_helper_xiface_to_node_interface(xiface); + int interface; + int intf; + + interface = xi.interface - CVMX_ILK_GBL_BASE(); + intf = (xi.node << 4) | interface; + if (interface >= CVMX_NUM_ILK_INTF) + return 0; + + if (OCTEON_IS_MODEL(OCTEON_CN78XX)) { + struct cvmx_pki_style_config style_cfg; + int num_channels = cvmx_ilk_chans[xi.node][interface]; + int index, i; + + for (i = 0; i < num_channels; i++) { + int pknd; + + index = (i % 8); + + /* Set jabber to allow max sized packets */ + if (i == 0) + csr_wr_node(xi.node, + CVMX_ILK_RXX_JABBER(interface), + 0xfff8); + + /* Setup PKND */ + pknd = cvmx_helper_get_pknd(xiface, index); + csr_wr_node(xi.node, CVMX_ILK_RXX_CHAX(i, interface), + pknd); + cvmx_pki_read_style_config( + 0, pknd, CVMX_PKI_CLUSTER_ALL, &style_cfg); + style_cfg.parm_cfg.qpg_port_sh = 0; + /* 256 channels */ + style_cfg.parm_cfg.qpg_port_msb = 8; + cvmx_pki_write_style_config( + 0, pknd, CVMX_PKI_CLUSTER_ALL, &style_cfg); + } + + cvmx_ilk_cal_setup_tx(intf, num_channels, NULL, 1); + cvmx_ilk_cal_setup_rx(intf, num_channels, NULL, + CVMX_ILK_RX_FIFO_WM, 1); + } + return 0; +} + +static int __cvmx_helper_ilk_init_port(int xiface) +{ + if (OCTEON_IS_MODEL(OCTEON_CN68XX)) + return __cvmx_helper_ilk_init_port_cn68xx(xiface); + else + return __cvmx_helper_ilk_init_port_cn78xx(xiface); +} + +/** + * @INTERNAL + * Bringup and enable ILK interface. After this call packet + * I/O should be fully functional. This is called with IPD + * enabled but PKO disabled. + * + * @param xiface Interface to bring up + * + * @return Zero on success, negative on failure + */ +int __cvmx_helper_ilk_enable(int xiface) +{ + if (__cvmx_helper_ilk_init_port(xiface) < 0) + return -1; + + return cvmx_ilk_enable(xiface); +} + +/** + * @INTERNAL + * Return the link state of an IPD/PKO port as returned by ILK link status. + * + * @param ipd_port IPD/PKO port to query + * + * @return Link state + */ +cvmx_helper_link_info_t __cvmx_helper_ilk_link_get(int ipd_port) +{ + cvmx_helper_link_info_t result; + int xiface = cvmx_helper_get_interface_num(ipd_port); + struct cvmx_xiface xi = cvmx_helper_xiface_to_node_interface(xiface); + int interface; + int retry_count = 0; + cvmx_ilk_rxx_cfg1_t ilk_rxx_cfg1; + cvmx_ilk_rxx_int_t ilk_rxx_int; + int lane_mask = 0; + int i; + int node = xi.node; + + result.u64 = 0; + interface = xi.interface - CVMX_ILK_GBL_BASE(); + +retry: + retry_count++; + if (retry_count > 200) + goto fail; + + /* Read RX config and status bits */ + ilk_rxx_cfg1.u64 = csr_rd_node(node, CVMX_ILK_RXX_CFG1(interface)); + ilk_rxx_int.u64 = csr_rd_node(node, CVMX_ILK_RXX_INT(interface)); + + if (ilk_rxx_cfg1.s.rx_bdry_lock_ena == 0) { + /* (GSER-21957) GSER RX Equalization may make >= 5gbaud non-KR + * channel better + */ + if (OCTEON_IS_MODEL(OCTEON_CN78XX)) { + int qlm, lane_mask; + + for (qlm = 4; qlm < 8; qlm++) { + lane_mask = 1 << (qlm - 4) * 4; + if (lane_mask & + cvmx_ilk_lane_mask[node][interface]) { + if (__cvmx_qlm_rx_equalization( + node, qlm, -1)) + goto retry; + } + } + } + + /* Clear the boundary lock status bit */ + ilk_rxx_int.u64 = 0; + ilk_rxx_int.s.word_sync_done = 1; + csr_wr_node(node, CVMX_ILK_RXX_INT(interface), ilk_rxx_int.u64); + + /* We need to start looking for word boundary lock */ + ilk_rxx_cfg1.s.rx_bdry_lock_ena = + cvmx_ilk_lane_mask[node][interface]; + ilk_rxx_cfg1.s.rx_align_ena = 0; + csr_wr_node(node, CVMX_ILK_RXX_CFG1(interface), + ilk_rxx_cfg1.u64); + //debug("ILK%d: Looking for word boundary lock\n", interface); + udelay(50); + goto retry; + } + + if (ilk_rxx_cfg1.s.rx_align_ena == 0) { + if (ilk_rxx_int.s.word_sync_done) { + /* Clear the lane align status bits */ + ilk_rxx_int.u64 = 0; + ilk_rxx_int.s.lane_align_fail = 1; + ilk_rxx_int.s.lane_align_done = 1; + csr_wr_node(node, CVMX_ILK_RXX_INT(interface), + ilk_rxx_int.u64); + + ilk_rxx_cfg1.s.rx_align_ena = 1; + csr_wr_node(node, CVMX_ILK_RXX_CFG1(interface), + ilk_rxx_cfg1.u64); + //printf("ILK%d: Looking for lane alignment\n", interface); + } + udelay(50); + goto retry; + } + + if (ilk_rxx_int.s.lane_align_fail) { + ilk_rxx_cfg1.s.rx_bdry_lock_ena = 0; + ilk_rxx_cfg1.s.rx_align_ena = 0; + csr_wr_node(node, CVMX_ILK_RXX_CFG1(interface), + ilk_rxx_cfg1.u64); + //debug("ILK%d: Lane alignment failed\n", interface); + goto fail; + } + + lane_mask = ilk_rxx_cfg1.s.rx_bdry_lock_ena; + + if (ilk_rxx_cfg1.s.pkt_ena == 0 && ilk_rxx_int.s.lane_align_done) { + cvmx_ilk_txx_cfg1_t ilk_txx_cfg1; + + ilk_txx_cfg1.u64 = + csr_rd_node(node, CVMX_ILK_TXX_CFG1(interface)); + ilk_rxx_cfg1.u64 = + csr_rd_node(node, CVMX_ILK_RXX_CFG1(interface)); + ilk_rxx_cfg1.s.pkt_ena = ilk_txx_cfg1.s.pkt_ena; + csr_wr_node(node, CVMX_ILK_RXX_CFG1(interface), + ilk_rxx_cfg1.u64); + + if (OCTEON_IS_MODEL(OCTEON_CN68XX)) { + /* + * Enable rxf_ctl_perr, rxf_lnk0_perr, rxf_lnk1_perr, + * pop_empty, push_full. + */ + csr_wr(CVMX_ILK_GBL_INT_EN, 0x1f); + /* Enable bad_pipe, bad_seq, txf_err */ + csr_wr(CVMX_ILK_TXX_INT_EN(interface), 0x7); + + /* + * Enable crc24_err, lane_bad_word, + * pkt_drop_{rid,rxf,sop} + */ + csr_wr(CVMX_ILK_RXX_INT_EN(interface), 0x1e2); + } + /* Need to enable ILK interrupts for 78xx */ + + for (i = 0; i < CVMX_ILK_MAX_LANES(); i++) { + if ((1 << i) & lane_mask) { + /* clear pending interrupts, before enabling. */ + csr_wr_node(node, CVMX_ILK_RX_LNEX_INT(i), + 0x1ff); + /* Enable bad_64b67b, bdry_sync_loss, crc32_err, + * dskew_fifo_ovfl, scrm_sync_loss, + * serdes_lock_loss, stat_msg, ukwn_cntl_word + */ + if (OCTEON_IS_MODEL(OCTEON_CN68XX)) + csr_wr(CVMX_ILK_RX_LNEX_INT_EN(i), + 0x1ff); + } + } + + //debug("ILK%d: Lane alignment complete\n", interface); + } + + /* Enable error interrupts, now link is up */ + cvmx_error_enable_group(CVMX_ERROR_GROUP_ILK, + node | (interface << 2) | (lane_mask << 4)); + + result.s.link_up = 1; + result.s.full_duplex = 1; + if (OCTEON_IS_MODEL(OCTEON_CN78XX)) { + int qlm = cvmx_qlm_lmac(xiface, 0); + + result.s.speed = cvmx_qlm_get_gbaud_mhz(qlm) * 64 / 67; + } else { + result.s.speed = + cvmx_qlm_get_gbaud_mhz(1 + interface) * 64 / 67; + } + result.s.speed *= cvmx_pop(lane_mask); + + return result; + +fail: + if (ilk_rxx_cfg1.s.pkt_ena) { + /* Disable the interface */ + ilk_rxx_cfg1.s.pkt_ena = 0; + csr_wr_node(node, CVMX_ILK_RXX_CFG1(interface), + ilk_rxx_cfg1.u64); + + /* Disable error interrupts */ + for (i = 0; i < CVMX_ILK_MAX_LANES(); i++) { + /* Disable bad_64b67b, bdry_sync_loss, crc32_err, + * dskew_fifo_ovfl, scrm_sync_loss, serdes_lock_loss, + * stat_msg, ukwn_cntl_word + */ + if ((1 << i) & lane_mask) { + csr_wr_node(node, CVMX_ILK_RX_LNEX_INT(i), + 0x1ff); + if (OCTEON_IS_MODEL(OCTEON_CN68XX)) + csr_wr(CVMX_ILK_RX_LNEX_INT_EN(i), + ~0x1ff); + } + } + /* Disable error interrupts */ + cvmx_error_enable_group(CVMX_ERROR_GROUP_ILK, 0); + } + + return result; +} + +/** + * @INTERNAL + * Set the link state of an IPD/PKO port. + * + * @param ipd_port IPD/PKO port to configure + * @param link_info The new link state + * + * @return Zero on success, negative on failure + */ +int __cvmx_helper_ilk_link_set(int ipd_port, cvmx_helper_link_info_t link_info) +{ + /* Do nothing */ + return 0; +}