cxgb4: dynamically determine flash size and FW image location
Handle the larger flash memories on newer boards: - get the size and number of sectors by probing the flash - writes and erases can take longer, adjust the timeouts for these operations - the FW image can be at different locations depending on flash size, find its location dynamically as well. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dimitris Michailidis
David S. Miller
parent
bb9c03d8a6
commit
900a659687
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@ -219,6 +219,10 @@ struct adapter_params {
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struct vpd_params vpd;
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struct pci_params pci;
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unsigned int sf_size; /* serial flash size in bytes */
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unsigned int sf_nsec; /* # of flash sectors */
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unsigned int sf_fw_start; /* start of FW image in flash */
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unsigned int fw_vers;
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unsigned int tp_vers;
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u8 api_vers[7];
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@ -449,12 +449,10 @@ enum {
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SF_RD_STATUS = 5, /* read status register */
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SF_WR_ENABLE = 6, /* enable writes */
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SF_RD_DATA_FAST = 0xb, /* read flash */
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SF_RD_ID = 0x9f, /* read ID */
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SF_ERASE_SECTOR = 0xd8, /* erase sector */
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FW_START_SEC = 8, /* first flash sector for FW */
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FW_END_SEC = 15, /* last flash sector for FW */
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FW_IMG_START = FW_START_SEC * SF_SEC_SIZE,
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FW_MAX_SIZE = (FW_END_SEC - FW_START_SEC + 1) * SF_SEC_SIZE,
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FW_MAX_SIZE = 512 * 1024,
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};
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/**
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@ -558,7 +556,7 @@ static int t4_read_flash(struct adapter *adapter, unsigned int addr,
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{
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int ret;
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if (addr + nwords * sizeof(u32) > SF_SIZE || (addr & 3))
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if (addr + nwords * sizeof(u32) > adapter->params.sf_size || (addr & 3))
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return -EINVAL;
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addr = swab32(addr) | SF_RD_DATA_FAST;
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@ -596,7 +594,7 @@ static int t4_write_flash(struct adapter *adapter, unsigned int addr,
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u32 buf[64];
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unsigned int i, c, left, val, offset = addr & 0xff;
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if (addr >= SF_SIZE || offset + n > SF_PAGE_SIZE)
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if (addr >= adapter->params.sf_size || offset + n > SF_PAGE_SIZE)
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return -EINVAL;
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val = swab32(addr) | SF_PROG_PAGE;
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@ -614,7 +612,7 @@ static int t4_write_flash(struct adapter *adapter, unsigned int addr,
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if (ret)
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goto unlock;
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}
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ret = flash_wait_op(adapter, 5, 1);
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ret = flash_wait_op(adapter, 8, 1);
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if (ret)
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goto unlock;
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@ -647,9 +645,8 @@ unlock:
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*/
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static int get_fw_version(struct adapter *adapter, u32 *vers)
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{
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return t4_read_flash(adapter,
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FW_IMG_START + offsetof(struct fw_hdr, fw_ver), 1,
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vers, 0);
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return t4_read_flash(adapter, adapter->params.sf_fw_start +
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offsetof(struct fw_hdr, fw_ver), 1, vers, 0);
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}
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/**
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@ -661,8 +658,8 @@ static int get_fw_version(struct adapter *adapter, u32 *vers)
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*/
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static int get_tp_version(struct adapter *adapter, u32 *vers)
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{
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return t4_read_flash(adapter, FW_IMG_START + offsetof(struct fw_hdr,
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tp_microcode_ver),
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return t4_read_flash(adapter, adapter->params.sf_fw_start +
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offsetof(struct fw_hdr, tp_microcode_ver),
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1, vers, 0);
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}
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@ -684,9 +681,9 @@ int t4_check_fw_version(struct adapter *adapter)
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if (!ret)
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ret = get_tp_version(adapter, &adapter->params.tp_vers);
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if (!ret)
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ret = t4_read_flash(adapter,
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FW_IMG_START + offsetof(struct fw_hdr, intfver_nic),
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2, api_vers, 1);
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ret = t4_read_flash(adapter, adapter->params.sf_fw_start +
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offsetof(struct fw_hdr, intfver_nic),
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2, api_vers, 1);
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if (ret)
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return ret;
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@ -726,7 +723,7 @@ static int t4_flash_erase_sectors(struct adapter *adapter, int start, int end)
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if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 ||
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(ret = sf1_write(adapter, 4, 0, 1,
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SF_ERASE_SECTOR | (start << 8))) != 0 ||
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(ret = flash_wait_op(adapter, 5, 500)) != 0) {
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(ret = flash_wait_op(adapter, 14, 500)) != 0) {
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dev_err(adapter->pdev_dev,
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"erase of flash sector %d failed, error %d\n",
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start, ret);
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@ -754,6 +751,9 @@ int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size)
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u8 first_page[SF_PAGE_SIZE];
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const u32 *p = (const u32 *)fw_data;
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const struct fw_hdr *hdr = (const struct fw_hdr *)fw_data;
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unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;
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unsigned int fw_img_start = adap->params.sf_fw_start;
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unsigned int fw_start_sec = fw_img_start / sf_sec_size;
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if (!size) {
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dev_err(adap->pdev_dev, "FW image has no data\n");
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@ -784,8 +784,8 @@ int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size)
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return -EINVAL;
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}
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i = DIV_ROUND_UP(size, SF_SEC_SIZE); /* # of sectors spanned */
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ret = t4_flash_erase_sectors(adap, FW_START_SEC, FW_START_SEC + i - 1);
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i = DIV_ROUND_UP(size, sf_sec_size); /* # of sectors spanned */
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ret = t4_flash_erase_sectors(adap, fw_start_sec, fw_start_sec + i - 1);
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if (ret)
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goto out;
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@ -796,11 +796,11 @@ int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size)
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*/
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memcpy(first_page, fw_data, SF_PAGE_SIZE);
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((struct fw_hdr *)first_page)->fw_ver = htonl(0xffffffff);
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ret = t4_write_flash(adap, FW_IMG_START, SF_PAGE_SIZE, first_page);
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ret = t4_write_flash(adap, fw_img_start, SF_PAGE_SIZE, first_page);
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if (ret)
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goto out;
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addr = FW_IMG_START;
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addr = fw_img_start;
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for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) {
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addr += SF_PAGE_SIZE;
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fw_data += SF_PAGE_SIZE;
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@ -810,7 +810,7 @@ int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size)
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}
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ret = t4_write_flash(adap,
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FW_IMG_START + offsetof(struct fw_hdr, fw_ver),
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fw_img_start + offsetof(struct fw_hdr, fw_ver),
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sizeof(hdr->fw_ver), (const u8 *)&hdr->fw_ver);
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out:
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if (ret)
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@ -3053,6 +3053,33 @@ static int __devinit wait_dev_ready(struct adapter *adap)
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return t4_read_reg(adap, PL_WHOAMI) != 0xffffffff ? 0 : -EIO;
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}
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static int __devinit get_flash_params(struct adapter *adap)
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{
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int ret;
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u32 info;
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ret = sf1_write(adap, 1, 1, 0, SF_RD_ID);
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if (!ret)
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ret = sf1_read(adap, 3, 0, 1, &info);
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t4_write_reg(adap, SF_OP, 0); /* unlock SF */
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if (ret)
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return ret;
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if ((info & 0xff) != 0x20) /* not a Numonix flash */
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return -EINVAL;
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info >>= 16; /* log2 of size */
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if (info >= 0x14 && info < 0x18)
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adap->params.sf_nsec = 1 << (info - 16);
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else if (info == 0x18)
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adap->params.sf_nsec = 64;
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else
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return -EINVAL;
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adap->params.sf_size = 1 << info;
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adap->params.sf_fw_start =
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t4_read_reg(adap, CIM_BOOT_CFG) & BOOTADDR_MASK;
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return 0;
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}
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/**
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* t4_prep_adapter - prepare SW and HW for operation
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* @adapter: the adapter
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@ -3073,6 +3100,12 @@ int __devinit t4_prep_adapter(struct adapter *adapter)
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get_pci_mode(adapter, &adapter->params.pci);
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adapter->params.rev = t4_read_reg(adapter, PL_REV);
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ret = get_flash_params(adapter);
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if (ret < 0) {
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dev_err(adapter->pdev_dev, "error %d identifying flash\n", ret);
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return ret;
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}
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ret = get_vpd_params(adapter, &adapter->params.vpd);
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if (ret < 0)
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return ret;
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@ -57,8 +57,6 @@ enum {
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enum {
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SF_PAGE_SIZE = 256, /* serial flash page size */
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SF_SEC_SIZE = 64 * 1024, /* serial flash sector size */
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SF_SIZE = SF_SEC_SIZE * 16, /* serial flash size */
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};
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enum { RSP_TYPE_FLBUF, RSP_TYPE_CPL, RSP_TYPE_INTR }; /* response entry types */
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@ -326,6 +326,9 @@
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#define EDC_1_BASE_ADDR 0x7980
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#define CIM_BOOT_CFG 0x7b00
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#define BOOTADDR_MASK 0xffffff00U
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#define CIM_PF_MAILBOX_DATA 0x240
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#define CIM_PF_MAILBOX_CTRL 0x280
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#define MBMSGVALID 0x00000008U
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