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Message-Id: <20230810094802.832652-1-neeraj.sanjaykale@nxp.com>
Date: Thu, 10 Aug 2023 15:18:02 +0530
From: Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
To: marcel@...tmann.org, johan.hedberg@...il.com, luiz.dentz@...il.com,
amitkumar.karwar@....com, rohit.fule@....com, sherry.sun@....com
Cc: neeraj.sanjaykale@....com, linux-bluetooth@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v1] Bluetooth: btnxpuart: Add support for IW624 chipset
This adds support for NXP IW624 chipset in btnxpuart driver
by adding FW name and bootloader signature. Based on the
loader version bits 7:6 of the bootloader signature, the
driver can choose between selecting secure and non-secure
FW files.
For cmd5 payload during FW download, this chip has addresses
of few registers offset by 1, so added boot_reg_offset to
handle the chip specific offset.
Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
---
drivers/bluetooth/btnxpuart.c | 44 ++++++++++++++++++++++++-----------
1 file changed, 31 insertions(+), 13 deletions(-)
diff --git a/drivers/bluetooth/btnxpuart.c b/drivers/bluetooth/btnxpuart.c
index ee6f6c872a34..b42572ca63af 100644
--- a/drivers/bluetooth/btnxpuart.c
+++ b/drivers/bluetooth/btnxpuart.c
@@ -34,6 +34,8 @@
#define FIRMWARE_W9098 "nxp/uartuart9098_bt_v1.bin"
#define FIRMWARE_IW416 "nxp/uartiw416_bt_v0.bin"
#define FIRMWARE_IW612 "nxp/uartspi_n61x_v1.bin.se"
+#define FIRMWARE_IW624 "nxp/uartiw624_bt.bin"
+#define FIRMWARE_SECURE_IW624 "nxp/uartiw624_bt.bin.se"
#define FIRMWARE_AW693 "nxp/uartaw693_bt.bin"
#define FIRMWARE_SECURE_AW693 "nxp/uartaw693_bt.bin.se"
#define FIRMWARE_HELPER "nxp/helper_uart_3000000.bin"
@@ -41,6 +43,8 @@
#define CHIP_ID_W9098 0x5c03
#define CHIP_ID_IW416 0x7201
#define CHIP_ID_IW612 0x7601
+#define CHIP_ID_IW624a 0x8000
+#define CHIP_ID_IW624c 0x8001
#define CHIP_ID_AW693 0x8200
#define FW_SECURE_MASK 0xc0
@@ -152,6 +156,7 @@ struct btnxpuart_dev {
u32 fw_v1_sent_bytes;
u32 fw_v3_offset_correction;
u32 fw_v1_expected_len;
+ u32 boot_reg_offset;
wait_queue_head_t fw_dnld_done_wait_q;
wait_queue_head_t check_boot_sign_wait_q;
@@ -538,6 +543,7 @@ static int nxp_download_firmware(struct hci_dev *hdev)
nxpdev->fw_dnld_v1_offset = 0;
nxpdev->fw_v1_sent_bytes = 0;
nxpdev->fw_v1_expected_len = HDR_LEN;
+ nxpdev->boot_reg_offset = 0;
nxpdev->fw_v3_offset_correction = 0;
nxpdev->baudrate_changed = false;
nxpdev->timeout_changed = false;
@@ -547,7 +553,7 @@ static int nxp_download_firmware(struct hci_dev *hdev)
serdev_device_set_flow_control(nxpdev->serdev, false);
nxpdev->current_baudrate = HCI_NXP_PRI_BAUDRATE;
- /* Wait till FW is downloaded and CTS becomes low */
+ /* Wait till FW is downloaded */
err = wait_event_interruptible_timeout(nxpdev->fw_dnld_done_wait_q,
!test_bit(BTNXPUART_FW_DOWNLOADING,
&nxpdev->tx_state),
@@ -558,16 +564,11 @@ static int nxp_download_firmware(struct hci_dev *hdev)
}
serdev_device_set_flow_control(nxpdev->serdev, true);
- err = serdev_device_wait_for_cts(nxpdev->serdev, 1, 60000);
- if (err < 0) {
- bt_dev_err(hdev, "CTS is still high. FW Download failed.");
- return err;
- }
release_firmware(nxpdev->fw);
memset(nxpdev->fw_name, 0, sizeof(nxpdev->fw_name));
/* Allow the downloaded FW to initialize */
- usleep_range(800 * USEC_PER_MSEC, 1 * USEC_PER_SEC);
+ msleep(1200);
return 0;
}
@@ -591,6 +592,12 @@ static bool nxp_fw_change_baudrate(struct hci_dev *hdev, u16 req_len)
struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
struct nxp_bootloader_cmd nxp_cmd5;
struct uart_config uart_config;
+ u32 clkdivaddr = CLKDIVADDR - nxpdev->boot_reg_offset;
+ u32 uartdivaddr = UARTDIVADDR - nxpdev->boot_reg_offset;
+ u32 uartmcraddr = UARTMCRADDR - nxpdev->boot_reg_offset;
+ u32 uartreinitaddr = UARTREINITADDR - nxpdev->boot_reg_offset;
+ u32 uarticraddr = UARTICRADDR - nxpdev->boot_reg_offset;
+ u32 uartfcraddr = UARTFCRADDR - nxpdev->boot_reg_offset;
if (req_len == sizeof(nxp_cmd5)) {
nxp_cmd5.header = __cpu_to_le32(5);
@@ -603,17 +610,17 @@ static bool nxp_fw_change_baudrate(struct hci_dev *hdev, u16 req_len)
serdev_device_write_buf(nxpdev->serdev, (u8 *)&nxp_cmd5, sizeof(nxp_cmd5));
nxpdev->fw_v3_offset_correction += req_len;
} else if (req_len == sizeof(uart_config)) {
- uart_config.clkdiv.address = __cpu_to_le32(CLKDIVADDR);
+ uart_config.clkdiv.address = __cpu_to_le32(clkdivaddr);
uart_config.clkdiv.value = __cpu_to_le32(0x00c00000);
- uart_config.uartdiv.address = __cpu_to_le32(UARTDIVADDR);
+ uart_config.uartdiv.address = __cpu_to_le32(uartdivaddr);
uart_config.uartdiv.value = __cpu_to_le32(1);
- uart_config.mcr.address = __cpu_to_le32(UARTMCRADDR);
+ uart_config.mcr.address = __cpu_to_le32(uartmcraddr);
uart_config.mcr.value = __cpu_to_le32(MCR);
- uart_config.re_init.address = __cpu_to_le32(UARTREINITADDR);
+ uart_config.re_init.address = __cpu_to_le32(uartreinitaddr);
uart_config.re_init.value = __cpu_to_le32(INIT);
- uart_config.icr.address = __cpu_to_le32(UARTICRADDR);
+ uart_config.icr.address = __cpu_to_le32(uarticraddr);
uart_config.icr.value = __cpu_to_le32(ICR);
- uart_config.fcr.address = __cpu_to_le32(UARTFCRADDR);
+ uart_config.fcr.address = __cpu_to_le32(uartfcraddr);
uart_config.fcr.value = __cpu_to_le32(FCR);
/* FW expects swapped CRC bytes */
uart_config.crc = __cpu_to_be32(crc32_be(0UL, (char *)&uart_config,
@@ -827,6 +834,7 @@ static int nxp_recv_fw_req_v1(struct hci_dev *hdev, struct sk_buff *skb)
static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid,
u8 loader_ver)
{
+ struct btnxpuart_dev *nxpdev = hci_get_drvdata(hdev);
char *fw_name = NULL;
switch (chipid) {
@@ -839,6 +847,16 @@ static char *nxp_get_fw_name_from_chipid(struct hci_dev *hdev, u16 chipid,
case CHIP_ID_IW612:
fw_name = FIRMWARE_IW612;
break;
+ case CHIP_ID_IW624a:
+ case CHIP_ID_IW624c:
+ nxpdev->boot_reg_offset = 1;
+ if ((loader_ver & FW_SECURE_MASK) == FW_OPEN)
+ fw_name = FIRMWARE_IW624;
+ else if ((loader_ver & FW_SECURE_MASK) != FW_AUTH_ILLEGAL)
+ fw_name = FIRMWARE_SECURE_IW624;
+ else
+ bt_dev_err(hdev, "Illegal loader version %02x", loader_ver);
+ break;
case CHIP_ID_AW693:
if ((loader_ver & FW_SECURE_MASK) == FW_OPEN)
fw_name = FIRMWARE_AW693;
--
2.34.1
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