649 lines
21 KiB
C
649 lines
21 KiB
C
/*
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* Broadcom specific AMBA
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* SPROM reading
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*
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* Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
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*
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* Licensed under the GNU/GPL. See COPYING for details.
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*/
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#include "bcma_private.h"
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#include <linux/bcma/bcma.h>
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#include <linux/bcma/bcma_regs.h>
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#include <linux/pci.h>
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#include <linux/io.h>
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#include <linux/dma-mapping.h>
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#include <linux/slab.h>
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static int(*get_fallback_sprom)(struct bcma_bus *dev, struct ssb_sprom *out);
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/**
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* bcma_arch_register_fallback_sprom - Registers a method providing a
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* fallback SPROM if no SPROM is found.
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*
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* @sprom_callback: The callback function.
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*
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* With this function the architecture implementation may register a
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* callback handler which fills the SPROM data structure. The fallback is
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* used for PCI based BCMA devices, where no valid SPROM can be found
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* in the shadow registers and to provide the SPROM for SoCs where BCMA is
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* to controll the system bus.
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*
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* This function is useful for weird architectures that have a half-assed
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* BCMA device hardwired to their PCI bus.
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*
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* This function is available for architecture code, only. So it is not
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* exported.
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*/
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int bcma_arch_register_fallback_sprom(int (*sprom_callback)(struct bcma_bus *bus,
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struct ssb_sprom *out))
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{
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if (get_fallback_sprom)
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return -EEXIST;
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get_fallback_sprom = sprom_callback;
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return 0;
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}
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static int bcma_fill_sprom_with_fallback(struct bcma_bus *bus,
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struct ssb_sprom *out)
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{
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int err;
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if (!get_fallback_sprom) {
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err = -ENOENT;
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goto fail;
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}
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err = get_fallback_sprom(bus, out);
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if (err)
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goto fail;
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bcma_debug(bus, "Using SPROM revision %d provided by platform.\n",
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bus->sprom.revision);
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return 0;
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fail:
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bcma_warn(bus, "Using fallback SPROM failed (err %d)\n", err);
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return err;
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}
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/**************************************************
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* R/W ops.
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**************************************************/
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static void bcma_sprom_read(struct bcma_bus *bus, u16 offset, u16 *sprom,
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size_t words)
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{
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int i;
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for (i = 0; i < words; i++)
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sprom[i] = bcma_read16(bus->drv_cc.core, offset + (i * 2));
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}
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/**************************************************
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* Validation.
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**************************************************/
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static inline u8 bcma_crc8(u8 crc, u8 data)
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{
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/* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */
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static const u8 t[] = {
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0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B,
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0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21,
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0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF,
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0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5,
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0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14,
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0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E,
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0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80,
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0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA,
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0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95,
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0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF,
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0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01,
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0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B,
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0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA,
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0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0,
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0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E,
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0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34,
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0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0,
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0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A,
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0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54,
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0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E,
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0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF,
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0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5,
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0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B,
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0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61,
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0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E,
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0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74,
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0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA,
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0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0,
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0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41,
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0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B,
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0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5,
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0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F,
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};
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return t[crc ^ data];
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}
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static u8 bcma_sprom_crc(const u16 *sprom, size_t words)
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{
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int word;
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u8 crc = 0xFF;
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for (word = 0; word < words - 1; word++) {
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crc = bcma_crc8(crc, sprom[word] & 0x00FF);
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crc = bcma_crc8(crc, (sprom[word] & 0xFF00) >> 8);
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}
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crc = bcma_crc8(crc, sprom[words - 1] & 0x00FF);
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crc ^= 0xFF;
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return crc;
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}
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static int bcma_sprom_check_crc(const u16 *sprom, size_t words)
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{
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u8 crc;
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u8 expected_crc;
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u16 tmp;
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crc = bcma_sprom_crc(sprom, words);
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tmp = sprom[words - 1] & SSB_SPROM_REVISION_CRC;
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expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT;
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if (crc != expected_crc)
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return -EPROTO;
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return 0;
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}
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static int bcma_sprom_valid(struct bcma_bus *bus, const u16 *sprom,
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size_t words)
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{
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u16 revision;
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int err;
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err = bcma_sprom_check_crc(sprom, words);
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if (err)
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return err;
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revision = sprom[words - 1] & SSB_SPROM_REVISION_REV;
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if (revision != 8 && revision != 9 && revision != 10) {
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pr_err("Unsupported SPROM revision: %d\n", revision);
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return -ENOENT;
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}
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bus->sprom.revision = revision;
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bcma_debug(bus, "Found SPROM revision %d\n", revision);
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return 0;
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}
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/**************************************************
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* SPROM extraction.
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**************************************************/
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#define SPOFF(offset) ((offset) / sizeof(u16))
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#define SPEX(_field, _offset, _mask, _shift) \
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bus->sprom._field = ((sprom[SPOFF(_offset)] & (_mask)) >> (_shift))
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#define SPEX32(_field, _offset, _mask, _shift) \
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bus->sprom._field = ((((u32)sprom[SPOFF((_offset)+2)] << 16 | \
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sprom[SPOFF(_offset)]) & (_mask)) >> (_shift))
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#define SPEX_ARRAY8(_field, _offset, _mask, _shift) \
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do { \
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SPEX(_field[0], _offset + 0, _mask, _shift); \
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SPEX(_field[1], _offset + 2, _mask, _shift); \
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SPEX(_field[2], _offset + 4, _mask, _shift); \
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SPEX(_field[3], _offset + 6, _mask, _shift); \
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SPEX(_field[4], _offset + 8, _mask, _shift); \
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SPEX(_field[5], _offset + 10, _mask, _shift); \
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SPEX(_field[6], _offset + 12, _mask, _shift); \
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SPEX(_field[7], _offset + 14, _mask, _shift); \
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} while (0)
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static s8 sprom_extract_antgain(const u16 *in, u16 offset, u16 mask, u16 shift)
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{
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u16 v;
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u8 gain;
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v = in[SPOFF(offset)];
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gain = (v & mask) >> shift;
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if (gain == 0xFF) {
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gain = 8; /* If unset use 2dBm */
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} else {
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/* Q5.2 Fractional part is stored in 0xC0 */
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gain = ((gain & 0xC0) >> 6) | ((gain & 0x3F) << 2);
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}
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return (s8)gain;
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}
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static void bcma_sprom_extract_r8(struct bcma_bus *bus, const u16 *sprom)
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{
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u16 v, o;
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int i;
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static const u16 pwr_info_offset[] = {
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SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1,
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SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3
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};
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BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) !=
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ARRAY_SIZE(bus->sprom.core_pwr_info));
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for (i = 0; i < 3; i++) {
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v = sprom[SPOFF(SSB_SPROM8_IL0MAC) + i];
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*(((__be16 *)bus->sprom.il0mac) + i) = cpu_to_be16(v);
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}
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SPEX(board_rev, SSB_SPROM8_BOARDREV, ~0, 0);
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SPEX(board_type, SSB_SPROM1_SPID, ~0, 0);
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SPEX(txpid2g[0], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G0,
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SSB_SPROM4_TXPID2G0_SHIFT);
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SPEX(txpid2g[1], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G1,
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SSB_SPROM4_TXPID2G1_SHIFT);
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SPEX(txpid2g[2], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G2,
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SSB_SPROM4_TXPID2G2_SHIFT);
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SPEX(txpid2g[3], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G3,
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SSB_SPROM4_TXPID2G3_SHIFT);
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SPEX(txpid5gl[0], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL0,
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SSB_SPROM4_TXPID5GL0_SHIFT);
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SPEX(txpid5gl[1], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL1,
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SSB_SPROM4_TXPID5GL1_SHIFT);
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SPEX(txpid5gl[2], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL2,
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SSB_SPROM4_TXPID5GL2_SHIFT);
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SPEX(txpid5gl[3], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL3,
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SSB_SPROM4_TXPID5GL3_SHIFT);
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SPEX(txpid5g[0], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G0,
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SSB_SPROM4_TXPID5G0_SHIFT);
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SPEX(txpid5g[1], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G1,
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SSB_SPROM4_TXPID5G1_SHIFT);
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SPEX(txpid5g[2], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G2,
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SSB_SPROM4_TXPID5G2_SHIFT);
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SPEX(txpid5g[3], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G3,
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SSB_SPROM4_TXPID5G3_SHIFT);
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SPEX(txpid5gh[0], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH0,
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SSB_SPROM4_TXPID5GH0_SHIFT);
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SPEX(txpid5gh[1], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH1,
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SSB_SPROM4_TXPID5GH1_SHIFT);
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SPEX(txpid5gh[2], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH2,
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SSB_SPROM4_TXPID5GH2_SHIFT);
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SPEX(txpid5gh[3], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH3,
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SSB_SPROM4_TXPID5GH3_SHIFT);
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SPEX(boardflags_lo, SSB_SPROM8_BFLLO, ~0, 0);
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SPEX(boardflags_hi, SSB_SPROM8_BFLHI, ~0, 0);
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SPEX(boardflags2_lo, SSB_SPROM8_BFL2LO, ~0, 0);
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SPEX(boardflags2_hi, SSB_SPROM8_BFL2HI, ~0, 0);
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SPEX(alpha2[0], SSB_SPROM8_CCODE, 0xff00, 8);
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SPEX(alpha2[1], SSB_SPROM8_CCODE, 0x00ff, 0);
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/* Extract cores power info info */
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for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) {
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o = pwr_info_offset[i];
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SPEX(core_pwr_info[i].itssi_2g, o + SSB_SROM8_2G_MAXP_ITSSI,
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SSB_SPROM8_2G_ITSSI, SSB_SPROM8_2G_ITSSI_SHIFT);
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SPEX(core_pwr_info[i].maxpwr_2g, o + SSB_SROM8_2G_MAXP_ITSSI,
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SSB_SPROM8_2G_MAXP, 0);
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SPEX(core_pwr_info[i].pa_2g[0], o + SSB_SROM8_2G_PA_0, ~0, 0);
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SPEX(core_pwr_info[i].pa_2g[1], o + SSB_SROM8_2G_PA_1, ~0, 0);
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SPEX(core_pwr_info[i].pa_2g[2], o + SSB_SROM8_2G_PA_2, ~0, 0);
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SPEX(core_pwr_info[i].itssi_5g, o + SSB_SROM8_5G_MAXP_ITSSI,
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SSB_SPROM8_5G_ITSSI, SSB_SPROM8_5G_ITSSI_SHIFT);
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SPEX(core_pwr_info[i].maxpwr_5g, o + SSB_SROM8_5G_MAXP_ITSSI,
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SSB_SPROM8_5G_MAXP, 0);
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SPEX(core_pwr_info[i].maxpwr_5gh, o + SSB_SPROM8_5GHL_MAXP,
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SSB_SPROM8_5GH_MAXP, 0);
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SPEX(core_pwr_info[i].maxpwr_5gl, o + SSB_SPROM8_5GHL_MAXP,
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SSB_SPROM8_5GL_MAXP, SSB_SPROM8_5GL_MAXP_SHIFT);
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SPEX(core_pwr_info[i].pa_5gl[0], o + SSB_SROM8_5GL_PA_0, ~0, 0);
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SPEX(core_pwr_info[i].pa_5gl[1], o + SSB_SROM8_5GL_PA_1, ~0, 0);
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SPEX(core_pwr_info[i].pa_5gl[2], o + SSB_SROM8_5GL_PA_2, ~0, 0);
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SPEX(core_pwr_info[i].pa_5g[0], o + SSB_SROM8_5G_PA_0, ~0, 0);
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SPEX(core_pwr_info[i].pa_5g[1], o + SSB_SROM8_5G_PA_1, ~0, 0);
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SPEX(core_pwr_info[i].pa_5g[2], o + SSB_SROM8_5G_PA_2, ~0, 0);
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SPEX(core_pwr_info[i].pa_5gh[0], o + SSB_SROM8_5GH_PA_0, ~0, 0);
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SPEX(core_pwr_info[i].pa_5gh[1], o + SSB_SROM8_5GH_PA_1, ~0, 0);
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SPEX(core_pwr_info[i].pa_5gh[2], o + SSB_SROM8_5GH_PA_2, ~0, 0);
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}
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SPEX(fem.ghz2.tssipos, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TSSIPOS,
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SSB_SROM8_FEM_TSSIPOS_SHIFT);
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SPEX(fem.ghz2.extpa_gain, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_EXTPA_GAIN,
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SSB_SROM8_FEM_EXTPA_GAIN_SHIFT);
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SPEX(fem.ghz2.pdet_range, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_PDET_RANGE,
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SSB_SROM8_FEM_PDET_RANGE_SHIFT);
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SPEX(fem.ghz2.tr_iso, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TR_ISO,
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SSB_SROM8_FEM_TR_ISO_SHIFT);
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SPEX(fem.ghz2.antswlut, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_ANTSWLUT,
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SSB_SROM8_FEM_ANTSWLUT_SHIFT);
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SPEX(fem.ghz5.tssipos, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TSSIPOS,
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SSB_SROM8_FEM_TSSIPOS_SHIFT);
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SPEX(fem.ghz5.extpa_gain, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_EXTPA_GAIN,
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SSB_SROM8_FEM_EXTPA_GAIN_SHIFT);
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SPEX(fem.ghz5.pdet_range, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_PDET_RANGE,
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SSB_SROM8_FEM_PDET_RANGE_SHIFT);
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SPEX(fem.ghz5.tr_iso, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TR_ISO,
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SSB_SROM8_FEM_TR_ISO_SHIFT);
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SPEX(fem.ghz5.antswlut, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_ANTSWLUT,
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SSB_SROM8_FEM_ANTSWLUT_SHIFT);
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SPEX(ant_available_a, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_A,
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SSB_SPROM8_ANTAVAIL_A_SHIFT);
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SPEX(ant_available_bg, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_BG,
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SSB_SPROM8_ANTAVAIL_BG_SHIFT);
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SPEX(maxpwr_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_MAXP_BG_MASK, 0);
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SPEX(itssi_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_ITSSI_BG,
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SSB_SPROM8_ITSSI_BG_SHIFT);
|
|
SPEX(maxpwr_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_MAXP_A_MASK, 0);
|
|
SPEX(itssi_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_ITSSI_A,
|
|
SSB_SPROM8_ITSSI_A_SHIFT);
|
|
SPEX(maxpwr_ah, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AH_MASK, 0);
|
|
SPEX(maxpwr_al, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AL_MASK,
|
|
SSB_SPROM8_MAXP_AL_SHIFT);
|
|
SPEX(gpio0, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P0, 0);
|
|
SPEX(gpio1, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P1,
|
|
SSB_SPROM8_GPIOA_P1_SHIFT);
|
|
SPEX(gpio2, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P2, 0);
|
|
SPEX(gpio3, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P3,
|
|
SSB_SPROM8_GPIOB_P3_SHIFT);
|
|
SPEX(tri2g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI2G, 0);
|
|
SPEX(tri5g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI5G,
|
|
SSB_SPROM8_TRI5G_SHIFT);
|
|
SPEX(tri5gl, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GL, 0);
|
|
SPEX(tri5gh, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GH,
|
|
SSB_SPROM8_TRI5GH_SHIFT);
|
|
SPEX(rxpo2g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO2G,
|
|
SSB_SPROM8_RXPO2G_SHIFT);
|
|
SPEX(rxpo5g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO5G,
|
|
SSB_SPROM8_RXPO5G_SHIFT);
|
|
SPEX(rssismf2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMF2G, 0);
|
|
SPEX(rssismc2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMC2G,
|
|
SSB_SPROM8_RSSISMC2G_SHIFT);
|
|
SPEX(rssisav2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISAV2G,
|
|
SSB_SPROM8_RSSISAV2G_SHIFT);
|
|
SPEX(bxa2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_BXA2G,
|
|
SSB_SPROM8_BXA2G_SHIFT);
|
|
SPEX(rssismf5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMF5G, 0);
|
|
SPEX(rssismc5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMC5G,
|
|
SSB_SPROM8_RSSISMC5G_SHIFT);
|
|
SPEX(rssisav5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISAV5G,
|
|
SSB_SPROM8_RSSISAV5G_SHIFT);
|
|
SPEX(bxa5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_BXA5G,
|
|
SSB_SPROM8_BXA5G_SHIFT);
|
|
|
|
SPEX(pa0b0, SSB_SPROM8_PA0B0, ~0, 0);
|
|
SPEX(pa0b1, SSB_SPROM8_PA0B1, ~0, 0);
|
|
SPEX(pa0b2, SSB_SPROM8_PA0B2, ~0, 0);
|
|
SPEX(pa1b0, SSB_SPROM8_PA1B0, ~0, 0);
|
|
SPEX(pa1b1, SSB_SPROM8_PA1B1, ~0, 0);
|
|
SPEX(pa1b2, SSB_SPROM8_PA1B2, ~0, 0);
|
|
SPEX(pa1lob0, SSB_SPROM8_PA1LOB0, ~0, 0);
|
|
SPEX(pa1lob1, SSB_SPROM8_PA1LOB1, ~0, 0);
|
|
SPEX(pa1lob2, SSB_SPROM8_PA1LOB2, ~0, 0);
|
|
SPEX(pa1hib0, SSB_SPROM8_PA1HIB0, ~0, 0);
|
|
SPEX(pa1hib1, SSB_SPROM8_PA1HIB1, ~0, 0);
|
|
SPEX(pa1hib2, SSB_SPROM8_PA1HIB2, ~0, 0);
|
|
SPEX(cck2gpo, SSB_SPROM8_CCK2GPO, ~0, 0);
|
|
SPEX32(ofdm2gpo, SSB_SPROM8_OFDM2GPO, ~0, 0);
|
|
SPEX32(ofdm5glpo, SSB_SPROM8_OFDM5GLPO, ~0, 0);
|
|
SPEX32(ofdm5gpo, SSB_SPROM8_OFDM5GPO, ~0, 0);
|
|
SPEX32(ofdm5ghpo, SSB_SPROM8_OFDM5GHPO, ~0, 0);
|
|
|
|
/* Extract the antenna gain values. */
|
|
bus->sprom.antenna_gain.a0 = sprom_extract_antgain(sprom,
|
|
SSB_SPROM8_AGAIN01,
|
|
SSB_SPROM8_AGAIN0,
|
|
SSB_SPROM8_AGAIN0_SHIFT);
|
|
bus->sprom.antenna_gain.a1 = sprom_extract_antgain(sprom,
|
|
SSB_SPROM8_AGAIN01,
|
|
SSB_SPROM8_AGAIN1,
|
|
SSB_SPROM8_AGAIN1_SHIFT);
|
|
bus->sprom.antenna_gain.a2 = sprom_extract_antgain(sprom,
|
|
SSB_SPROM8_AGAIN23,
|
|
SSB_SPROM8_AGAIN2,
|
|
SSB_SPROM8_AGAIN2_SHIFT);
|
|
bus->sprom.antenna_gain.a3 = sprom_extract_antgain(sprom,
|
|
SSB_SPROM8_AGAIN23,
|
|
SSB_SPROM8_AGAIN3,
|
|
SSB_SPROM8_AGAIN3_SHIFT);
|
|
|
|
SPEX(leddc_on_time, SSB_SPROM8_LEDDC, SSB_SPROM8_LEDDC_ON,
|
|
SSB_SPROM8_LEDDC_ON_SHIFT);
|
|
SPEX(leddc_off_time, SSB_SPROM8_LEDDC, SSB_SPROM8_LEDDC_OFF,
|
|
SSB_SPROM8_LEDDC_OFF_SHIFT);
|
|
|
|
SPEX(txchain, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_TXCHAIN,
|
|
SSB_SPROM8_TXRXC_TXCHAIN_SHIFT);
|
|
SPEX(rxchain, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_RXCHAIN,
|
|
SSB_SPROM8_TXRXC_RXCHAIN_SHIFT);
|
|
SPEX(antswitch, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_SWITCH,
|
|
SSB_SPROM8_TXRXC_SWITCH_SHIFT);
|
|
|
|
SPEX(opo, SSB_SPROM8_OFDM2GPO, 0x00ff, 0);
|
|
|
|
SPEX_ARRAY8(mcs2gpo, SSB_SPROM8_2G_MCSPO, ~0, 0);
|
|
SPEX_ARRAY8(mcs5gpo, SSB_SPROM8_5G_MCSPO, ~0, 0);
|
|
SPEX_ARRAY8(mcs5glpo, SSB_SPROM8_5GL_MCSPO, ~0, 0);
|
|
SPEX_ARRAY8(mcs5ghpo, SSB_SPROM8_5GH_MCSPO, ~0, 0);
|
|
|
|
SPEX(rawtempsense, SSB_SPROM8_RAWTS, SSB_SPROM8_RAWTS_RAWTEMP,
|
|
SSB_SPROM8_RAWTS_RAWTEMP_SHIFT);
|
|
SPEX(measpower, SSB_SPROM8_RAWTS, SSB_SPROM8_RAWTS_MEASPOWER,
|
|
SSB_SPROM8_RAWTS_MEASPOWER_SHIFT);
|
|
SPEX(tempsense_slope, SSB_SPROM8_OPT_CORRX,
|
|
SSB_SPROM8_OPT_CORRX_TEMP_SLOPE,
|
|
SSB_SPROM8_OPT_CORRX_TEMP_SLOPE_SHIFT);
|
|
SPEX(tempcorrx, SSB_SPROM8_OPT_CORRX, SSB_SPROM8_OPT_CORRX_TEMPCORRX,
|
|
SSB_SPROM8_OPT_CORRX_TEMPCORRX_SHIFT);
|
|
SPEX(tempsense_option, SSB_SPROM8_OPT_CORRX,
|
|
SSB_SPROM8_OPT_CORRX_TEMP_OPTION,
|
|
SSB_SPROM8_OPT_CORRX_TEMP_OPTION_SHIFT);
|
|
SPEX(freqoffset_corr, SSB_SPROM8_HWIQ_IQSWP,
|
|
SSB_SPROM8_HWIQ_IQSWP_FREQ_CORR,
|
|
SSB_SPROM8_HWIQ_IQSWP_FREQ_CORR_SHIFT);
|
|
SPEX(iqcal_swp_dis, SSB_SPROM8_HWIQ_IQSWP,
|
|
SSB_SPROM8_HWIQ_IQSWP_IQCAL_SWP,
|
|
SSB_SPROM8_HWIQ_IQSWP_IQCAL_SWP_SHIFT);
|
|
SPEX(hw_iqcal_en, SSB_SPROM8_HWIQ_IQSWP, SSB_SPROM8_HWIQ_IQSWP_HW_IQCAL,
|
|
SSB_SPROM8_HWIQ_IQSWP_HW_IQCAL_SHIFT);
|
|
|
|
SPEX(bw40po, SSB_SPROM8_BW40PO, ~0, 0);
|
|
SPEX(cddpo, SSB_SPROM8_CDDPO, ~0, 0);
|
|
SPEX(stbcpo, SSB_SPROM8_STBCPO, ~0, 0);
|
|
SPEX(bwduppo, SSB_SPROM8_BWDUPPO, ~0, 0);
|
|
|
|
SPEX(tempthresh, SSB_SPROM8_THERMAL, SSB_SPROM8_THERMAL_TRESH,
|
|
SSB_SPROM8_THERMAL_TRESH_SHIFT);
|
|
SPEX(tempoffset, SSB_SPROM8_THERMAL, SSB_SPROM8_THERMAL_OFFSET,
|
|
SSB_SPROM8_THERMAL_OFFSET_SHIFT);
|
|
SPEX(phycal_tempdelta, SSB_SPROM8_TEMPDELTA,
|
|
SSB_SPROM8_TEMPDELTA_PHYCAL,
|
|
SSB_SPROM8_TEMPDELTA_PHYCAL_SHIFT);
|
|
SPEX(temps_period, SSB_SPROM8_TEMPDELTA, SSB_SPROM8_TEMPDELTA_PERIOD,
|
|
SSB_SPROM8_TEMPDELTA_PERIOD_SHIFT);
|
|
SPEX(temps_hysteresis, SSB_SPROM8_TEMPDELTA,
|
|
SSB_SPROM8_TEMPDELTA_HYSTERESIS,
|
|
SSB_SPROM8_TEMPDELTA_HYSTERESIS_SHIFT);
|
|
}
|
|
|
|
/*
|
|
* Indicates the presence of external SPROM.
|
|
*/
|
|
static bool bcma_sprom_ext_available(struct bcma_bus *bus)
|
|
{
|
|
u32 chip_status;
|
|
u32 srom_control;
|
|
u32 present_mask;
|
|
|
|
if (bus->drv_cc.core->id.rev >= 31) {
|
|
if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM))
|
|
return false;
|
|
|
|
srom_control = bcma_read32(bus->drv_cc.core,
|
|
BCMA_CC_SROM_CONTROL);
|
|
return srom_control & BCMA_CC_SROM_CONTROL_PRESENT;
|
|
}
|
|
|
|
/* older chipcommon revisions use chip status register */
|
|
chip_status = bcma_read32(bus->drv_cc.core, BCMA_CC_CHIPSTAT);
|
|
switch (bus->chipinfo.id) {
|
|
case BCMA_CHIP_ID_BCM4313:
|
|
present_mask = BCMA_CC_CHIPST_4313_SPROM_PRESENT;
|
|
break;
|
|
|
|
case BCMA_CHIP_ID_BCM4331:
|
|
present_mask = BCMA_CC_CHIPST_4331_SPROM_PRESENT;
|
|
break;
|
|
|
|
default:
|
|
return true;
|
|
}
|
|
|
|
return chip_status & present_mask;
|
|
}
|
|
|
|
/*
|
|
* Indicates that on-chip OTP memory is present and enabled.
|
|
*/
|
|
static bool bcma_sprom_onchip_available(struct bcma_bus *bus)
|
|
{
|
|
u32 chip_status;
|
|
u32 otpsize = 0;
|
|
bool present;
|
|
|
|
chip_status = bcma_read32(bus->drv_cc.core, BCMA_CC_CHIPSTAT);
|
|
switch (bus->chipinfo.id) {
|
|
case BCMA_CHIP_ID_BCM4313:
|
|
present = chip_status & BCMA_CC_CHIPST_4313_OTP_PRESENT;
|
|
break;
|
|
|
|
case BCMA_CHIP_ID_BCM4331:
|
|
present = chip_status & BCMA_CC_CHIPST_4331_OTP_PRESENT;
|
|
break;
|
|
case BCMA_CHIP_ID_BCM43142:
|
|
case BCMA_CHIP_ID_BCM43224:
|
|
case BCMA_CHIP_ID_BCM43225:
|
|
/* for these chips OTP is always available */
|
|
present = true;
|
|
break;
|
|
case BCMA_CHIP_ID_BCM43131:
|
|
case BCMA_CHIP_ID_BCM43217:
|
|
case BCMA_CHIP_ID_BCM43227:
|
|
case BCMA_CHIP_ID_BCM43228:
|
|
case BCMA_CHIP_ID_BCM43428:
|
|
present = chip_status & BCMA_CC_CHIPST_43228_OTP_PRESENT;
|
|
break;
|
|
default:
|
|
present = false;
|
|
break;
|
|
}
|
|
|
|
if (present) {
|
|
otpsize = bus->drv_cc.capabilities & BCMA_CC_CAP_OTPS;
|
|
otpsize >>= BCMA_CC_CAP_OTPS_SHIFT;
|
|
}
|
|
|
|
return otpsize != 0;
|
|
}
|
|
|
|
/*
|
|
* Verify OTP is filled and determine the byte
|
|
* offset where SPROM data is located.
|
|
*
|
|
* On error, returns 0; byte offset otherwise.
|
|
*/
|
|
static int bcma_sprom_onchip_offset(struct bcma_bus *bus)
|
|
{
|
|
struct bcma_device *cc = bus->drv_cc.core;
|
|
u32 offset;
|
|
|
|
/* verify OTP status */
|
|
if ((bcma_read32(cc, BCMA_CC_OTPS) & BCMA_CC_OTPS_GU_PROG_HW) == 0)
|
|
return 0;
|
|
|
|
/* obtain bit offset from otplayout register */
|
|
offset = (bcma_read32(cc, BCMA_CC_OTPL) & BCMA_CC_OTPL_GURGN_OFFSET);
|
|
return BCMA_CC_SPROM + (offset >> 3);
|
|
}
|
|
|
|
int bcma_sprom_get(struct bcma_bus *bus)
|
|
{
|
|
u16 offset = BCMA_CC_SPROM;
|
|
u16 *sprom;
|
|
static const size_t sprom_sizes[] = {
|
|
SSB_SPROMSIZE_WORDS_R4,
|
|
SSB_SPROMSIZE_WORDS_R10,
|
|
SSB_SPROMSIZE_WORDS_R11,
|
|
};
|
|
int i, err = 0;
|
|
|
|
if (!bus->drv_cc.core)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!bcma_sprom_ext_available(bus)) {
|
|
bool sprom_onchip;
|
|
|
|
/*
|
|
* External SPROM takes precedence so check
|
|
* on-chip OTP only when no external SPROM
|
|
* is present.
|
|
*/
|
|
sprom_onchip = bcma_sprom_onchip_available(bus);
|
|
if (sprom_onchip) {
|
|
/* determine offset */
|
|
offset = bcma_sprom_onchip_offset(bus);
|
|
}
|
|
if (!offset || !sprom_onchip) {
|
|
/*
|
|
* Maybe there is no SPROM on the device?
|
|
* Now we ask the arch code if there is some sprom
|
|
* available for this device in some other storage.
|
|
*/
|
|
err = bcma_fill_sprom_with_fallback(bus, &bus->sprom);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4331 ||
|
|
bus->chipinfo.id == BCMA_CHIP_ID_BCM43431)
|
|
bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, false);
|
|
|
|
bcma_debug(bus, "SPROM offset 0x%x\n", offset);
|
|
for (i = 0; i < ARRAY_SIZE(sprom_sizes); i++) {
|
|
size_t words = sprom_sizes[i];
|
|
|
|
sprom = kcalloc(words, sizeof(u16), GFP_KERNEL);
|
|
if (!sprom)
|
|
return -ENOMEM;
|
|
|
|
bcma_sprom_read(bus, offset, sprom, words);
|
|
err = bcma_sprom_valid(bus, sprom, words);
|
|
if (!err)
|
|
break;
|
|
|
|
kfree(sprom);
|
|
}
|
|
|
|
if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4331 ||
|
|
bus->chipinfo.id == BCMA_CHIP_ID_BCM43431)
|
|
bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true);
|
|
|
|
if (err) {
|
|
bcma_warn(bus, "Invalid SPROM read from the PCIe card, trying to use fallback SPROM\n");
|
|
err = bcma_fill_sprom_with_fallback(bus, &bus->sprom);
|
|
} else {
|
|
bcma_sprom_extract_r8(bus, sprom);
|
|
kfree(sprom);
|
|
}
|
|
|
|
return err;
|
|
}
|