diff options
Diffstat (limited to 'src/soc/qualcomm')
| -rw-r--r-- | src/soc/qualcomm/ipq806x/uart.c | 136 |
1 files changed, 69 insertions, 67 deletions
diff --git a/src/soc/qualcomm/ipq806x/uart.c b/src/soc/qualcomm/ipq806x/uart.c index 0a19e9a4f2..ffb58c9495 100644 --- a/src/soc/qualcomm/ipq806x/uart.c +++ b/src/soc/qualcomm/ipq806x/uart.c @@ -46,8 +46,8 @@ #define FIFO_DATA_SIZE 4 typedef struct { - unsigned uart_dm_base; - unsigned uart_gsbi_base; + void *uart_dm_base; + void *uart_gsbi_base; unsigned uart_gsbi; uart_clk_mnd_t mnd_value; gpio_func_data_t dbg_uart_gpio[NO_OF_DBG_UART_GPIOS]; @@ -58,31 +58,31 @@ typedef struct { * board/qcom/ipq806x_cdp/ipq806x_board_param.h */ static const uart_params_t uart_board_param = { - .uart_dm_base = UART4_DM_BASE, - .uart_gsbi_base = UART_GSBI4_BASE, + .uart_dm_base = (void *)UART4_DM_BASE, + .uart_gsbi_base = (void *)UART_GSBI4_BASE, .uart_gsbi = GSBI_4, .mnd_value = { 12, 625, 313 }, - .dbg_uart_gpio = { - { - .gpio = 10, - .func = 1, - .dir = GPIO_OUTPUT, - .pull = GPIO_NO_PULL, - .drvstr = GPIO_12MA, - .enable = GPIO_DISABLE - }, - { - .gpio = 11, - .func = 1, - .dir = GPIO_INPUT, - .pull = GPIO_NO_PULL, - .drvstr = GPIO_12MA, - .enable = GPIO_DISABLE - }, - } + .dbg_uart_gpio = { + { + .gpio = 10, + .func = 1, + .dir = GPIO_OUTPUT, + .pull = GPIO_NO_PULL, + .drvstr = GPIO_12MA, + .enable = GPIO_DISABLE + }, + { + .gpio = 11, + .func = 1, + .dir = GPIO_INPUT, + .pull = GPIO_NO_PULL, + .drvstr = GPIO_12MA, + .enable = GPIO_DISABLE + }, + } }; -static unsigned int msm_boot_uart_dm_init(unsigned int uart_dm_base); +static unsigned int msm_boot_uart_dm_init(void *uart_dm_base); /* Received data is valid or not */ static int valid_data = 0; @@ -94,24 +94,24 @@ static unsigned int word = 0; * msm_boot_uart_dm_init_rx_transfer - Init Rx transfer * @uart_dm_base: UART controller base address */ -static unsigned int msm_boot_uart_dm_init_rx_transfer(unsigned int uart_dm_base) +static unsigned int msm_boot_uart_dm_init_rx_transfer(void *uart_dm_base) { /* Reset receiver */ - writel_i(MSM_BOOT_UART_DM_CMD_RESET_RX, + writel(MSM_BOOT_UART_DM_CMD_RESET_RX, MSM_BOOT_UART_DM_CR(uart_dm_base)); /* Enable receiver */ - writel_i(MSM_BOOT_UART_DM_CR_RX_ENABLE, + writel(MSM_BOOT_UART_DM_CR_RX_ENABLE, MSM_BOOT_UART_DM_CR(uart_dm_base)); - writel_i(MSM_BOOT_UART_DM_DMRX_DEF_VALUE, + writel(MSM_BOOT_UART_DM_DMRX_DEF_VALUE, MSM_BOOT_UART_DM_DMRX(uart_dm_base)); /* Clear stale event */ - writel_i(MSM_BOOT_UART_DM_CMD_RES_STALE_INT, + writel(MSM_BOOT_UART_DM_CMD_RES_STALE_INT, MSM_BOOT_UART_DM_CR(uart_dm_base)); /* Enable stale event */ - writel_i(MSM_BOOT_UART_DM_GCMD_ENA_STALE_EVT, + writel(MSM_BOOT_UART_DM_GCMD_ENA_STALE_EVT, MSM_BOOT_UART_DM_CR(uart_dm_base)); return MSM_BOOT_UART_DM_E_SUCCESS; @@ -132,7 +132,7 @@ msm_boot_uart_dm_read(unsigned int *data, int *count, int wait) { static int total_rx_data = 0; static int rx_data_read = 0; - unsigned int base = 0; + void *base; uint32_t status_reg; base = uart_board_param.uart_dm_base; @@ -140,19 +140,19 @@ msm_boot_uart_dm_read(unsigned int *data, int *count, int wait) if (data == NULL) return MSM_BOOT_UART_DM_E_INVAL; - status_reg = readl_i(MSM_BOOT_UART_DM_MISR(base)); + status_reg = readl(MSM_BOOT_UART_DM_MISR(base)); /* Check for DM_RXSTALE for RX transfer to finish */ while (!(status_reg & MSM_BOOT_UART_DM_RXSTALE)) { - status_reg = readl_i(MSM_BOOT_UART_DM_MISR(base)); + status_reg = readl(MSM_BOOT_UART_DM_MISR(base)); if (!wait) return MSM_BOOT_UART_DM_E_RX_NOT_READY; } /* Check for Overrun error. We'll just reset Error Status */ - if (readl_i(MSM_BOOT_UART_DM_SR(base)) & + if (readl(MSM_BOOT_UART_DM_SR(base)) & MSM_BOOT_UART_DM_SR_UART_OVERRUN) { - writel_i(MSM_BOOT_UART_DM_CMD_RESET_ERR_STAT, + writel(MSM_BOOT_UART_DM_CMD_RESET_ERR_STAT, MSM_BOOT_UART_DM_CR(base)); total_rx_data = rx_data_read = 0; msm_boot_uart_dm_init(base); @@ -161,10 +161,10 @@ msm_boot_uart_dm_read(unsigned int *data, int *count, int wait) /* Read UART_DM_RX_TOTAL_SNAP for actual number of bytes received */ if (total_rx_data == 0) - total_rx_data = readl_i(MSM_BOOT_UART_DM_RX_TOTAL_SNAP(base)); + total_rx_data = readl(MSM_BOOT_UART_DM_RX_TOTAL_SNAP(base)); /* Data available in FIFO; read a word. */ - *data = readl_i(MSM_BOOT_UART_DM_RF(base, 0)); + *data = readl(MSM_BOOT_UART_DM_RF(base, 0)); /* WAR for http://prism/CR/548280 */ if (*data == 0) { @@ -194,35 +194,36 @@ msm_boot_uart_dm_read(unsigned int *data, int *count, int wait) void uart_tx_byte(int idx, unsigned char data) { - unsigned int base = uart_board_param.uart_dm_base; + int num_of_chars = 1; + unsigned tx_data = 0; + void *base = uart_board_param.uart_dm_base; /* Wait until transmit FIFO is empty. */ - while (!(readl_i(MSM_BOOT_UART_DM_SR(base)) & - MSM_BOOT_UART_DM_SR_TXEMT)) - udelay(1); - + while (!(readl(MSM_BOOT_UART_DM_SR(base)) & + MSM_BOOT_UART_DM_SR_TXEMT)) + udelay(1); /* * TX FIFO is ready to accept new character(s). First write number of * characters to be transmitted. */ - writel_i(1, MSM_BOOT_UART_DM_NO_CHARS_FOR_TX(base)); + writel(num_of_chars, MSM_BOOT_UART_DM_NO_CHARS_FOR_TX(base)); /* And now write the character(s) */ - writel_i(data, MSM_BOOT_UART_DM_TF(base, 0)); + writel(tx_data, MSM_BOOT_UART_DM_TF(base, 0)); } /* * msm_boot_uart_dm_reset - resets UART controller * @base: UART controller base address */ -static unsigned int msm_boot_uart_dm_reset(unsigned int base) +static unsigned int msm_boot_uart_dm_reset(void *base) { - writel_i(MSM_BOOT_UART_DM_CMD_RESET_RX, MSM_BOOT_UART_DM_CR(base)); - writel_i(MSM_BOOT_UART_DM_CMD_RESET_TX, MSM_BOOT_UART_DM_CR(base)); - writel_i(MSM_BOOT_UART_DM_CMD_RESET_ERR_STAT, + writel(MSM_BOOT_UART_DM_CMD_RESET_RX, MSM_BOOT_UART_DM_CR(base)); + writel(MSM_BOOT_UART_DM_CMD_RESET_TX, MSM_BOOT_UART_DM_CR(base)); + writel(MSM_BOOT_UART_DM_CMD_RESET_ERR_STAT, MSM_BOOT_UART_DM_CR(base)); - writel_i(MSM_BOOT_UART_DM_CMD_RES_TX_ERR, MSM_BOOT_UART_DM_CR(base)); - writel_i(MSM_BOOT_UART_DM_CMD_RES_STALE_INT, MSM_BOOT_UART_DM_CR(base)); + writel(MSM_BOOT_UART_DM_CMD_RES_TX_ERR, MSM_BOOT_UART_DM_CR(base)); + writel(MSM_BOOT_UART_DM_CMD_RES_STALE_INT, MSM_BOOT_UART_DM_CR(base)); return MSM_BOOT_UART_DM_E_SUCCESS; } @@ -231,18 +232,18 @@ static unsigned int msm_boot_uart_dm_reset(unsigned int base) * msm_boot_uart_dm_init - initilaizes UART controller * @uart_dm_base: UART controller base address */ -static unsigned int msm_boot_uart_dm_init(unsigned int uart_dm_base) +static unsigned int msm_boot_uart_dm_init(void *uart_dm_base) { /* Configure UART mode registers MR1 and MR2 */ /* Hardware flow control isn't supported */ - writel_i(0x0, MSM_BOOT_UART_DM_MR1(uart_dm_base)); + writel(0x0, MSM_BOOT_UART_DM_MR1(uart_dm_base)); /* 8-N-1 configuration: 8 data bits - No parity - 1 stop bit */ - writel_i(MSM_BOOT_UART_DM_8_N_1_MODE, + writel(MSM_BOOT_UART_DM_8_N_1_MODE, MSM_BOOT_UART_DM_MR2(uart_dm_base)); /* Configure Interrupt Mask register IMR */ - writel_i(MSM_BOOT_UART_DM_IMR_ENABLED, + writel(MSM_BOOT_UART_DM_IMR_ENABLED, MSM_BOOT_UART_DM_IMR(uart_dm_base)); /* @@ -250,25 +251,25 @@ static unsigned int msm_boot_uart_dm_init(unsigned int uart_dm_base) * TX watermark value is set to 0 - interrupt is generated when * FIFO level is less than or equal to 0 */ - writel_i(MSM_BOOT_UART_DM_TFW_VALUE, + writel(MSM_BOOT_UART_DM_TFW_VALUE, MSM_BOOT_UART_DM_TFWR(uart_dm_base)); /* RX watermark value */ - writel_i(MSM_BOOT_UART_DM_RFW_VALUE, + writel(MSM_BOOT_UART_DM_RFW_VALUE, MSM_BOOT_UART_DM_RFWR(uart_dm_base)); /* Configure Interrupt Programming Register */ /* Set initial Stale timeout value */ - writel_i(MSM_BOOT_UART_DM_STALE_TIMEOUT_LSB, + writel(MSM_BOOT_UART_DM_STALE_TIMEOUT_LSB, MSM_BOOT_UART_DM_IPR(uart_dm_base)); /* Configure IRDA if required */ /* Disabling IRDA mode */ - writel_i(0x0, MSM_BOOT_UART_DM_IRDA(uart_dm_base)); + writel(0x0, MSM_BOOT_UART_DM_IRDA(uart_dm_base)); /* Configure hunt character value in HCR register */ /* Keep it in reset state */ - writel_i(0x0, MSM_BOOT_UART_DM_HCR(uart_dm_base)); + writel(0x0, MSM_BOOT_UART_DM_HCR(uart_dm_base)); /* * Configure Rx FIFO base address @@ -283,10 +284,10 @@ static unsigned int msm_boot_uart_dm_init(unsigned int uart_dm_base) /* Enable/Disable Rx/Tx DM interfaces */ /* Data Mover not currently utilized. */ - writel_i(0x0, MSM_BOOT_UART_DM_DMEN(uart_dm_base)); + writel(0x0, MSM_BOOT_UART_DM_DMEN(uart_dm_base)); /* Enable transmitter */ - writel_i(MSM_BOOT_UART_DM_CR_TX_ENABLE, + writel(MSM_BOOT_UART_DM_CR_TX_ENABLE, MSM_BOOT_UART_DM_CR(uart_dm_base)); /* Initialize Receive Path */ @@ -303,7 +304,8 @@ static unsigned int msm_boot_uart_dm_init(unsigned int uart_dm_base) void uart_init(int idx) { /* Note int idx isn't used in this driver. */ - unsigned int dm_base, gsbi_base; + void *dm_base; + void *gsbi_base; dm_base = uart_board_param.uart_dm_base; gsbi_base = uart_board_param.uart_gsbi_base; @@ -311,16 +313,16 @@ void uart_init(int idx) NO_OF_DBG_UART_GPIOS); /* Configure the uart clock */ - uart_clock_config(uart_board_param.uart_gsbi, + uart_clock_config(uart_board_param.uart_gsbi, uart_board_param.mnd_value.m_value, uart_board_param.mnd_value.n_value, uart_board_param.mnd_value.d_value, 0); - writel_i(GSBI_PROTOCOL_CODE_I2C_UART << + writel(GSBI_PROTOCOL_CODE_I2C_UART << GSBI_CTRL_REG_PROTOCOL_CODE_S, GSBI_CTRL_REG(gsbi_base)); - writel_i(UART_DM_CLK_RX_TX_BIT_RATE, MSM_BOOT_UART_DM_CSR(dm_base)); + writel(UART_DM_CLK_RX_TX_BIT_RATE, MSM_BOOT_UART_DM_CSR(dm_base)); /* Intialize UART_DM */ msm_boot_uart_dm_init(dm_base); @@ -329,7 +331,7 @@ void uart_init(int idx) #if 0 /* Not used yet */ uint32_t uartmem_getbaseaddr(void) { - return uart_board_param.uart_dm_base; + return (uint32_t)uart_board_param.uart_dm_base; } #endif @@ -339,9 +341,9 @@ uint32_t uartmem_getbaseaddr(void) */ void uart_tx_flush(int idx) { - unsigned int base = uart_board_param.uart_dm_base; + void *base = uart_board_param.uart_dm_base; - while (!(readl_i(MSM_BOOT_UART_DM_SR(base)) & + while (!(readl(MSM_BOOT_UART_DM_SR(base)) & MSM_BOOT_UART_DM_SR_TXEMT)) ; } |