diff options
author | Prudhvi Yarlagadda <pyarlaga@codeaurora.org> | 2019-03-22 15:26:02 +0530 |
---|---|---|
committer | Patrick Georgi <pgeorgi@google.com> | 2019-06-04 14:15:26 +0000 |
commit | 37e957f3349c461371e15cd3d6f754514506ce47 (patch) | |
tree | 341279b6c1b96ee47b47ec76f055807207d4e101 /src/soc/qualcomm | |
parent | 1b05479a7fc1605e1d9735575300bd09b55e6a5d (diff) | |
download | coreboot-37e957f3349c461371e15cd3d6f754514506ce47.tar.xz |
qcs405: Add UART support
Add support for UART driver in coreboot.
TEST=build & run
Change-Id: Id9626c68eadead8b8ec5ffbc08cab7b0ec36478f
Signed-off-by: Prudhvi Yarlagadda<pyarlaga@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Nitheesh Sekar <nsekar@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29964
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/qualcomm')
-rw-r--r-- | src/soc/qualcomm/qcs405/Kconfig | 1 | ||||
-rw-r--r-- | src/soc/qualcomm/qcs405/Makefile.inc | 4 | ||||
-rw-r--r-- | src/soc/qualcomm/qcs405/include/soc/blsp.h | 60 | ||||
-rw-r--r-- | src/soc/qualcomm/qcs405/include/soc/cdp.h | 144 | ||||
-rw-r--r-- | src/soc/qualcomm/qcs405/include/soc/iomap.h | 156 | ||||
-rw-r--r-- | src/soc/qualcomm/qcs405/include/soc/uart.h | 273 | ||||
-rw-r--r-- | src/soc/qualcomm/qcs405/uart.c | 303 |
7 files changed, 941 insertions, 0 deletions
diff --git a/src/soc/qualcomm/qcs405/Kconfig b/src/soc/qualcomm/qcs405/Kconfig index 3e8c1ba5be..6bbdd3bf34 100644 --- a/src/soc/qualcomm/qcs405/Kconfig +++ b/src/soc/qualcomm/qcs405/Kconfig @@ -11,6 +11,7 @@ config SOC_QUALCOMM_QCS405 select GENERIC_UDELAY select HAVE_MONOTONIC_TIMER select ARM64_USE_ARCH_TIMER + select HAVE_UART_SPECIAL if SOC_QUALCOMM_QCS405 diff --git a/src/soc/qualcomm/qcs405/Makefile.inc b/src/soc/qualcomm/qcs405/Makefile.inc index 4df5246e3c..c64e5bcf58 100644 --- a/src/soc/qualcomm/qcs405/Makefile.inc +++ b/src/soc/qualcomm/qcs405/Makefile.inc @@ -8,12 +8,14 @@ bootblock-y += spi.c bootblock-y += mmu.c bootblock-y += gpio.c bootblock-y += clock.c +bootblock-$(CONFIG_DRIVERS_UART) += uart.c ################################################################################ verstage-y += timer.c verstage-y += spi.c verstage-y += gpio.c verstage-y += clock.c +verstage-$(CONFIG_DRIVERS_UART) += uart.c ################################################################################ romstage-y += timer.c @@ -22,6 +24,7 @@ romstage-y += cbmem.c romstage-y += gpio.c romstage-y += clock.c romstage-y += usb.c +romstage-$(CONFIG_DRIVERS_UART) += uart.c ################################################################################ ramstage-y += soc.c @@ -31,6 +34,7 @@ ramstage-y += cbmem.c ramstage-y += gpio.c ramstage-y += clock.c ramstage-y += usb.c +ramstage-$(CONFIG_DRIVERS_UART) += uart.c ################################################################################ diff --git a/src/soc/qualcomm/qcs405/include/soc/blsp.h b/src/soc/qualcomm/qcs405/include/soc/blsp.h new file mode 100644 index 0000000000..6e55d7dd37 --- /dev/null +++ b/src/soc/qualcomm/qcs405/include/soc/blsp.h @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2011-2019 The Linux Foundation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of The Linux Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +#ifndef __BLSP_H_ +#define __BLSP_H_ + +typedef enum { + BLSP_QUP_ID_0, + BLSP_QUP_ID_1, + BLSP_QUP_ID_2, + BLSP_QUP_ID_3, +} blsp_qup_id_t; + +typedef enum { + BLSP_SUCCESS = 0, + BLSP_ID_ERROR, + BLSP_ERROR, + BLSP_UNSUPPORTED +} blsp_return_t; + +typedef enum { + BLSP_PROTO_I2C_UIM = 1, + BLSP_PROTO_I2C_ONLY, + BLSP_PROTO_SPI_ONLY, + BLSP_PROTO_UART_FLOW_CTL, + BLSP_PROTO_UIM, + BLSP_PROTO_I2C_UART, +} blsp_protocol_t; + +blsp_return_t blsp_i2c_init(blsp_qup_id_t id); +int blsp_i2c_init_board(blsp_qup_id_t id); + +#endif diff --git a/src/soc/qualcomm/qcs405/include/soc/cdp.h b/src/soc/qualcomm/qcs405/include/soc/cdp.h new file mode 100644 index 0000000000..8e33f4b960 --- /dev/null +++ b/src/soc/qualcomm/qcs405/include/soc/cdp.h @@ -0,0 +1,144 @@ +/* + * Copyright (c) 2012-2019 The Linux Foundation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of The Linux Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +#ifndef _QCS405_CDP_H_ +#define _QCS405_CDP_H_ + +#include <types.h> + +unsigned int smem_get_board_machtype(void); + +typedef enum { + PHY_INTERFACE_MODE_MII, + PHY_INTERFACE_MODE_GMII, + PHY_INTERFACE_MODE_SGMII, + PHY_INTERFACE_MODE_QSGMII, + PHY_INTERFACE_MODE_TBI, + PHY_INTERFACE_MODE_RMII, + PHY_INTERFACE_MODE_RGMII, + PHY_INTERFACE_MODE_RGMII_ID, + PHY_INTERFACE_MODE_RGMII_RXID, + PHY_INTERFACE_MODE_RGMII_TXID, + PHY_INTERFACE_MODE_RTBI, + PHY_INTERFACE_MODE_XGMII, + PHY_INTERFACE_MODE_NONE /* Must be last */ +} phy_interface_t; + +typedef struct { + gpio_t gpio; + unsigned int func; + unsigned int dir; + unsigned int pull; + unsigned int drvstr; + unsigned int enable; +} gpio_func_data_t; + +typedef struct { + unsigned int m_value; + unsigned int n_value; + unsigned int d_value; +} uart_clk_mnd_t; + +/* SPI Mode */ + +typedef enum { + NOR_SPI_MODE_0, + NOR_SPI_MODE_1, + NOR_SPI_MODE_2, + NOR_SPI_MODE_3, +} spi_mode; + +/* SPI Chip selects */ + +typedef enum { + SPI_CS_0, + SPI_CS_1, + SPI_CS_2, + SPI_CS_3, +} spi_cs; + +/* Flash Types */ + +typedef enum { + ONLY_NAND, + ONLY_NOR, + NAND_NOR, + NOR_MMC, +} flash_desc; + +#define NO_OF_DBG_UART_GPIOS 2 + +#define SPI_NOR_FLASH_VENDOR_MICRON 0x1 +#define SPI_NOR_FLASH_VENDOR_SPANSION 0x2 + +/* SPI parameters */ + +typedef struct { + spi_mode mode; + spi_cs chip_select; + int vendor; +} spinorflash_params_t; + +typedef struct { + unsigned int count; + uint8_t addr[7]; +} ipq_gmac_phy_addr_t; + +typedef struct { + unsigned int base; + int unit; + unsigned int is_macsec; + unsigned int mac_pwr0; + unsigned int mac_pwr1; + unsigned int mac_conn_to_phy; + phy_interface_t phy; + ipq_gmac_phy_addr_t phy_addr; +} ipq_gmac_board_cfg_t; + +#define IPQ_GMAC_NMACS 4 + +enum gale_board_id { + BOARD_ID_GALE_PROTO = 0, + BOARD_ID_GALE_EVT = 1, + BOARD_ID_GALE_EVT2_0 = 2, + BOARD_ID_GALE_EVT2_1 = 6, + BOARD_ID_GALE_EVT3 = 5, +}; + +/* Board specific parameters */ +typedef struct { +} __packed board_ipq40xx_params_t; + +extern board_ipq40xx_params_t *gboard_param; + +unsigned int get_board_index(unsigned int machid); +void ipq_configure_gpio(const gpio_func_data_t *gpio, unsigned int count); + +#endif diff --git a/src/soc/qualcomm/qcs405/include/soc/iomap.h b/src/soc/qualcomm/qcs405/include/soc/iomap.h new file mode 100644 index 0000000000..2ed3e10f76 --- /dev/null +++ b/src/soc/qualcomm/qcs405/include/soc/iomap.h @@ -0,0 +1,156 @@ +/* + * Copyright (c) 2012 - 2013, 2015, 2019 The Linux Foundation. + * All rights reserved. + * + * Copyright (c) 2008, Google Inc. + * All rights reserved. + * + * Copyright (c) 2009-2012, Code Aurora Forum. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google, Inc. nor the names of its contributors + * may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef __SOC_QUALCOMM_QCS405_IOMAP_H_ +#define __SOC_QUALCOMM_QCS405_IOMAP_H_ + +#include <device/mmio.h> +#include <soc/cdp.h> +#include <soc/blsp.h> + +/* Typecast to allow integers being passed as address + This needs to be included because vendor code is not compliant with our + macros for read/write. Hence, special macros for readl_i and writel_i are + included to do this in one place for all occurrences in vendor code + */ +#define readl_i(a) read32((const void *)(a)) +#define writel_i(v, a) write32((void *)a, v) +#define clrsetbits_le32_i(addr, clear, set) \ + clrsetbits_le32(((void *)(addr)), (clear), (set)) + +#define GCC_CLK_CTL_REG ((void *)0x01800000u) +#define MSM_CLK_CTL_BASE GCC_CLK_CTL_REG +#define GCC_CLK_BRANCH_ENA (GCC_CLK_CTL_REG + 0x6000) +#define IMEM_AXI (1 << 17) +#define SYS_NOC_APSS_AHB (1 << 16) +#define BIMC_AXI_M0 (1 << 15) +#define APSS_AHB (1 << 14) +#define APSS_AXI (1 << 13) +#define MPM_AHB (1 << 12) +#define GMEM_SYS_NOC_AXI (1 << 11) +#define BLSP1_AHB (1 << 10) +#define BLSP1_SLEEP (1 << 9) +#define PRNG_AHB (1 << 8) +#define BOOT_ROM_AHB (1 << 7) +#define MSG_RAM_AHB (1 << 6) +#define TLMM_AHB (1 << 5) +#define TLMM (1 << 4) +#define SPMI_PCNOC_AHB (1 << 3) +#define CRYPTO (1 << 2) +#define CRYPTO_AXI (1 << 1) +#define CRYPTO_AHB (1 << 0) + +#define GCC_BLSP1_QUP1_I2C_APPS_CBCR (MSM_CLK_CTL_BASE + 0x2008) +#define GCC_BLSP1_QUP1_I2C_APPS_CMD_RCGR (MSM_CLK_CTL_BASE + 0x200c) +#define GCC_BLSP1_QUP1_I2C_APPS_CFG_RCGR (MSM_CLK_CTL_BASE + 0x2010) +#define GCC_BLSP1_QUP2_I2C_APPS_CBCR (MSM_CLK_CTL_BASE + 0x3010) +#define GCC_BLSP1_QUP2_I2C_APPS_CMD_RCGR (MSM_CLK_CTL_BASE + 0x3000) +#define GCC_BLSP1_QUP2_I2C_APPS_CFG_RCGR (MSM_CLK_CTL_BASE + 0x3004) + +#define GCNT_GLOBAL_CTRL_BASE ((void *)0x004a0000u) +#define GCNT_CNTCR (GCNT_GLOBAL_CTRL_BASE + 0x1000) +#define GCNT_GLB_CNTCV_LO (GCNT_GLOBAL_CTRL_BASE + 0x1008) +#define GCNT_GLB_CNTCV_HI (GCNT_GLOBAL_CTRL_BASE + 0x100c) +#define GCNT_CNTCV_LO (GCNT_GLOBAL_CTRL_BASE + 0x2000) +#define GCNT_CNTCV_HI (GCNT_GLOBAL_CTRL_BASE + 0x2004) + +#define GCNT_PSHOLD ((void *)0x004AB000u) + +/* RPM interface constants */ +#define RPM_INT ((void *)0x63020) +#define RPM_INT_ACK ((void *)0x63060) +#define RPM_SIGNAL_COOKIE ((void *)0x47C20) +#define RPM_SIGNAL_ENTRY ((void *)0x47C24) +#define RPM_FW_MAGIC_NUM 0x4D505242 + +#define TLMM_BASE_ADDR ((void *)0x01000000) +#define GPIO_CONFIG_ADDR(x) (TLMM_BASE_ADDR + 0x1000 * (x)) +#define GPIO_IN_OUT_ADDR(x) (GPIO_CONFIG_ADDR(x) + 4) + +/* Yes, this is not a typo... host2 is actually mapped before host1. */ +#define USB_HOST2_XHCI_BASE 0x10000000 +#define USB_HOST2_DWC3_BASE 0x1000C100 +#define USB_HOST2_PHY_BASE 0x100F8800 +#define USB_HOST1_XHCI_BASE 0x11000000 +#define USB_HOST1_DWC3_BASE 0x1100C100 +#define USB_HOST1_PHY_BASE 0x110F8800 + +#define UART1_DM_BASE ((void *)0x078af000) +#define UART2_DM_BASE ((void *)0x078B1000) + +enum { + BLSP1_UART1, + BLSP1_UART2, +}; + +#define GCC_BLSP1_UART_BCR_BASE (GCC_CLK_CTL_REG + 0x2038) +#define GCC_BLSP1_UART_BCR(x) (GCC_BLSP1_UART_BCR_BASE + (x) * 0xff0) +#define GCC_BLSP1_UART_APPS_CBCR(x) (GCC_BLSP1_UART_BCR(x) + 4) +#define GCC_BLSP1_UART_APPS_CMD_RCGR(x) (GCC_BLSP1_UART_APPS_CBCR(x) + 8) +#define GCC_BLSP1_UART_APPS_CFG_RCGR(x) (GCC_BLSP1_UART_APPS_CMD_RCGR(x) + 4) +#define GCC_BLSP1_UART_APPS_M(x) (GCC_BLSP1_UART_APPS_CFG_RCGR(x) + 4) +#define GCC_BLSP1_UART_APPS_N(x) (GCC_BLSP1_UART_APPS_M(x) + 4) +#define GCC_BLSP1_UART_APPS_D(x) (GCC_BLSP1_UART_APPS_N(x) + 4) +#define GCC_BLSP1_UART_MISC(x) (GCC_BLSP1_UART_APPS_D(x) + 4) + +#define BLSP1_QUP0_BASE ((void *)0x078B5000) +#define BLSP1_QUP1_BASE ((void *)0x078B6000) +#define BLSP1_QUP2_BASE ((void *)0x078B7000) +#define BLSP1_QUP3_BASE ((void *)0x078B8000) + +#define TCSR_BOOT_MISC_DETECT ((void *)0x0193D100) +#define TCSR_RESET_DEBUG_SW_ENTRY ((void *)0x01940000) + +static inline void *blsp_qup_base(blsp_qup_id_t id) +{ + switch (id) { + case BLSP_QUP_ID_0: return BLSP1_QUP0_BASE; + case BLSP_QUP_ID_1: return BLSP1_QUP1_BASE; + case BLSP_QUP_ID_2: return BLSP1_QUP2_BASE; + case BLSP_QUP_ID_3: return BLSP1_QUP3_BASE; + } + return NULL; +} + +#define BLSP_MINI_CORE_SHIFT 8 +#define BLSP_MINI_CORE_I2C (0x2u << BLSP_MINI_CORE_SHIFT) +#define BLSP_MINI_CORE_MASK (0xfu << BLSP_MINI_CORE_SHIFT) + +#define ETIMEDOUT -10 +#define EINVAL -11 +#define EIO -12 + +#endif diff --git a/src/soc/qualcomm/qcs405/include/soc/uart.h b/src/soc/qualcomm/qcs405/include/soc/uart.h new file mode 100644 index 0000000000..5c8a361c7b --- /dev/null +++ b/src/soc/qualcomm/qcs405/include/soc/uart.h @@ -0,0 +1,273 @@ +/* + * Copyright (c) 2012-2019 The Linux Foundation. All rights reserved.* + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of The Linux Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __UART_DM_H__ +#define __UART_DM_H__ + +#define PERIPH_BLK_BLSP 1 + +#define MSM_BOOT_UART_DM_EXTR_BITS(value, start_pos, end_pos) \ + ((value << (32 - end_pos)) >> (32 - (end_pos - start_pos))) + +extern void __udelay(unsigned long usec); + + +enum MSM_BOOT_UART_DM_PARITY_MODE { + MSM_BOOT_UART_DM_NO_PARITY, + MSM_BOOT_UART_DM_ODD_PARITY, + MSM_BOOT_UART_DM_EVEN_PARITY, + MSM_BOOT_UART_DM_SPACE_PARITY +}; + +/* UART Stop Bit Length */ +enum MSM_BOOT_UART_DM_STOP_BIT_LEN { + MSM_BOOT_UART_DM_SBL_9_16, + MSM_BOOT_UART_DM_SBL_1, + MSM_BOOT_UART_DM_SBL_1_9_16, + MSM_BOOT_UART_DM_SBL_2 +}; + +/* UART Bits per Char */ +enum MSM_BOOT_UART_DM_BITS_PER_CHAR { + MSM_BOOT_UART_DM_5_BPS, + MSM_BOOT_UART_DM_6_BPS, + MSM_BOOT_UART_DM_7_BPS, + MSM_BOOT_UART_DM_8_BPS +}; + +/* 8-N-1 Configuration */ +#define MSM_BOOT_UART_DM_8_N_1_MODE (MSM_BOOT_UART_DM_NO_PARITY | \ + (MSM_BOOT_UART_DM_SBL_1 << 2) | \ + (MSM_BOOT_UART_DM_8_BPS << 4)) + +/* UART_DM Registers */ + +/* UART Operational Mode Register */ +#define MSM_BOOT_UART_DM_MR1(base) ((base) + 0x00) +#define MSM_BOOT_UART_DM_MR2(base) ((base) + 0x04) +#define MSM_BOOT_UART_DM_RXBRK_ZERO_CHAR_OFF (1 << 8) +#define MSM_BOOT_UART_DM_LOOPBACK (1 << 7) + +/* UART Clock Selection Register */ +#if PERIPH_BLK_BLSP +#define MSM_BOOT_UART_DM_CSR(base) ((base) + 0xA0) +#else +#define MSM_BOOT_UART_DM_CSR(base) ((base) + 0x08) +#endif + +/* UART DM TX FIFO Registers - 4 */ +#if PERIPH_BLK_BLSP +#define MSM_BOOT_UART_DM_TF(base, x) ((base) + 0x100+(4*(x))) +#else +#define MSM_BOOT_UART_DM_TF(base, x) ((base) + 0x70+(4*(x))) +#endif + +/* UART Command Register */ +#if PERIPH_BLK_BLSP +#define MSM_BOOT_UART_DM_CR(base) ((base) + 0xA8) +#else +#define MSM_BOOT_UART_DM_CR(base) ((base) + 0x10) +#endif +#define MSM_BOOT_UART_DM_CR_RX_ENABLE (1 << 0) +#define MSM_BOOT_UART_DM_CR_RX_DISABLE (1 << 1) +#define MSM_BOOT_UART_DM_CR_TX_ENABLE (1 << 2) +#define MSM_BOOT_UART_DM_CR_TX_DISABLE (1 << 3) + +/* UART Channel Command */ +#define MSM_BOOT_UART_DM_CR_CH_CMD_LSB(x) ((x & 0x0f) << 4) +#define MSM_BOOT_UART_DM_CR_CH_CMD_MSB(x) ((x >> 4) << 11) +#define MSM_BOOT_UART_DM_CR_CH_CMD(x) \ + (MSM_BOOT_UART_DM_CR_CH_CMD_LSB(x) | MSM_BOOT_UART_DM_CR_CH_CMD_MSB(x)) +#define MSM_BOOT_UART_DM_CMD_NULL MSM_BOOT_UART_DM_CR_CH_CMD(0) +#define MSM_BOOT_UART_DM_CMD_RESET_RX MSM_BOOT_UART_DM_CR_CH_CMD(1) +#define MSM_BOOT_UART_DM_CMD_RESET_TX MSM_BOOT_UART_DM_CR_CH_CMD(2) +#define MSM_BOOT_UART_DM_CMD_RESET_ERR_STAT MSM_BOOT_UART_DM_CR_CH_CMD(3) +#define MSM_BOOT_UART_DM_CMD_RES_BRK_CHG_INT MSM_BOOT_UART_DM_CR_CH_CMD(4) +#define MSM_BOOT_UART_DM_CMD_START_BRK MSM_BOOT_UART_DM_CR_CH_CMD(5) +#define MSM_BOOT_UART_DM_CMD_STOP_BRK MSM_BOOT_UART_DM_CR_CH_CMD(6) +#define MSM_BOOT_UART_DM_CMD_RES_CTS_N MSM_BOOT_UART_DM_CR_CH_CMD(7) +#define MSM_BOOT_UART_DM_CMD_RES_STALE_INT MSM_BOOT_UART_DM_CR_CH_CMD(8) +#define MSM_BOOT_UART_DM_CMD_PACKET_MODE MSM_BOOT_UART_DM_CR_CH_CMD(9) +#define MSM_BOOT_UART_DM_CMD_MODE_RESET MSM_BOOT_UART_DM_CR_CH_CMD(C) +#define MSM_BOOT_UART_DM_CMD_SET_RFR_N MSM_BOOT_UART_DM_CR_CH_CMD(D) +#define MSM_BOOT_UART_DM_CMD_RES_RFR_N MSM_BOOT_UART_DM_CR_CH_CMD(E) +#define MSM_BOOT_UART_DM_CMD_RES_TX_ERR MSM_BOOT_UART_DM_CR_CH_CMD(10) +#define MSM_BOOT_UART_DM_CMD_CLR_TX_DONE MSM_BOOT_UART_DM_CR_CH_CMD(11) +#define MSM_BOOT_UART_DM_CMD_RES_BRKSTRT_INT MSM_BOOT_UART_DM_CR_CH_CMD(12) +#define MSM_BOOT_UART_DM_CMD_RES_BRKEND_INT MSM_BOOT_UART_DM_CR_CH_CMD(13) +#define MSM_BOOT_UART_DM_CMD_RES_PER_FRM_INT MSM_BOOT_UART_DM_CR_CH_CMD(14) + +/*UART General Command */ +#define MSM_BOOT_UART_DM_CR_GENERAL_CMD(x) ((x) << 8) + +#define MSM_BOOT_UART_DM_GCMD_NULL MSM_BOOT_UART_DM_CR_GENERAL_CMD(0) +#define MSM_BOOT_UART_DM_GCMD_CR_PROT_EN MSM_BOOT_UART_DM_CR_GENERAL_CMD(1) +#define MSM_BOOT_UART_DM_GCMD_CR_PROT_DIS MSM_BOOT_UART_DM_CR_GENERAL_CMD(2) +#define MSM_BOOT_UART_DM_GCMD_RES_TX_RDY_INT MSM_BOOT_UART_DM_CR_GENERAL_CMD(3) +#define MSM_BOOT_UART_DM_GCMD_SW_FORCE_STALE MSM_BOOT_UART_DM_CR_GENERAL_CMD(4) +#define MSM_BOOT_UART_DM_GCMD_ENA_STALE_EVT MSM_BOOT_UART_DM_CR_GENERAL_CMD(5) +#define MSM_BOOT_UART_DM_GCMD_DIS_STALE_EVT MSM_BOOT_UART_DM_CR_GENERAL_CMD(6) + +/* UART Interrupt Mask Register */ +#if PERIPH_BLK_BLSP +#define MSM_BOOT_UART_DM_IMR(base) ((base) + 0xB0) +#else +#define MSM_BOOT_UART_DM_IMR(base) ((base) + 0x14) +#endif + +#define MSM_BOOT_UART_DM_TXLEV (1 << 0) +#define MSM_BOOT_UART_DM_RXHUNT (1 << 1) +#define MSM_BOOT_UART_DM_RXBRK_CHNG (1 << 2) +#define MSM_BOOT_UART_DM_RXSTALE (1 << 3) +#define MSM_BOOT_UART_DM_RXLEV (1 << 4) +#define MSM_BOOT_UART_DM_DELTA_CTS (1 << 5) +#define MSM_BOOT_UART_DM_CURRENT_CTS (1 << 6) +#define MSM_BOOT_UART_DM_TX_READY (1 << 7) +#define MSM_BOOT_UART_DM_TX_ERROR (1 << 8) +#define MSM_BOOT_UART_DM_TX_DONE (1 << 9) +#define MSM_BOOT_UART_DM_RXBREAK_START (1 << 10) +#define MSM_BOOT_UART_DM_RXBREAK_END (1 << 11) +#define MSM_BOOT_UART_DM_PAR_FRAME_ERR_IRQ (1 << 12) + +#define MSM_BOOT_UART_DM_IMR_ENABLED (MSM_BOOT_UART_DM_TX_READY | \ + MSM_BOOT_UART_DM_TXLEV | \ + MSM_BOOT_UART_DM_RXSTALE) + +/* UART Interrupt Programming Register */ +#define MSM_BOOT_UART_DM_IPR(base) ((base) + 0x18) +#define MSM_BOOT_UART_DM_STALE_TIMEOUT_LSB 0x0f +#define MSM_BOOT_UART_DM_STALE_TIMEOUT_MSB 0 /* Not used currently */ + +/* UART Transmit/Receive FIFO Watermark Register */ +#define MSM_BOOT_UART_DM_TFWR(base) ((base) + 0x1C) +/* Interrupt is generated when FIFO level is less than or equal to this value */ +#define MSM_BOOT_UART_DM_TFW_VALUE 0 + +#define MSM_BOOT_UART_DM_RFWR(base) ((base) + 0x20) +/*Interrupt generated when no of words in RX FIFO is greater than this value */ +#define MSM_BOOT_UART_DM_RFW_VALUE 0 + +/* UART Hunt Character Register */ +#define MSM_BOOT_UART_DM_HCR(base) ((base) + 0x24) + +/* Used for RX transfer initialization */ +#define MSM_BOOT_UART_DM_DMRX(base) ((base) + 0x34) + +/* Default DMRX value - any value bigger than FIFO size would be fine */ +#define MSM_BOOT_UART_DM_DMRX_DEF_VALUE 0x220 + +/* Register to enable IRDA function */ +#if PERIPH_BLK_BLSP +#define MSM_BOOT_UART_DM_IRDA(base) ((base) + 0xB8) +#else +#define MSM_BOOT_UART_DM_IRDA(base) ((base) + 0x38) +#endif + +/* UART Data Mover Enable Register */ +#define MSM_BOOT_UART_DM_DMEN(base) ((base) + 0x3C) + +/* Number of characters for Transmission */ +#define MSM_BOOT_UART_DM_NO_CHARS_FOR_TX(base) ((base) + 0x040) + +/* UART RX FIFO Base Address */ +#define MSM_BOOT_UART_DM_BADR(base) ((base) + 0x44) + +/* UART Status Register */ +#if PERIPH_BLK_BLSP +#define MSM_BOOT_UART_DM_SR(base) ((base) + 0x0A4) +#else +#define MSM_BOOT_UART_DM_SR(base) ((base) + 0x008) +#endif +#define MSM_BOOT_UART_DM_SR_RXRDY (1 << 0) +#define MSM_BOOT_UART_DM_SR_RXFULL (1 << 1) +#define MSM_BOOT_UART_DM_SR_TXRDY (1 << 2) +#define MSM_BOOT_UART_DM_SR_TXEMT (1 << 3) +#define MSM_BOOT_UART_DM_SR_UART_OVERRUN (1 << 4) +#define MSM_BOOT_UART_DM_SR_PAR_FRAME_ERR (1 << 5) +#define MSM_BOOT_UART_DM_RX_BREAK (1 << 6) +#define MSM_BOOT_UART_DM_HUNT_CHAR (1 << 7) +#define MSM_BOOT_UART_DM_RX_BRK_START_LAST (1 << 8) + +/* UART Receive FIFO Registers - 4 in numbers */ +#if PERIPH_BLK_BLSP +#define MSM_BOOT_UART_DM_RF(base, x) ((base) + 0x140 + (4*(x))) +#else +#define MSM_BOOT_UART_DM_RF(base, x) ((base) + 0x70 + (4*(x))) +#endif + +/* UART Masked Interrupt Status Register */ +#if PERIPH_BLK_BLSP +#define MSM_BOOT_UART_DM_MISR(base) ((base) + 0xAC) +#else +#define MSM_BOOT_UART_DM_MISR(base) ((base) + 0x10) +#endif + +/* UART Interrupt Status Register */ +#if PERIPH_BLK_BLSP +#define MSM_BOOT_UART_DM_ISR(base) ((base) + 0xB4) +#else +#define MSM_BOOT_UART_DM_ISR(base) ((base) + 0x14) +#endif + +/* Number of characters received since the end of last RX transfer */ +#if PERIPH_BLK_BLSP +#define MSM_BOOT_UART_DM_RX_TOTAL_SNAP(base) ((base) + 0xBC) +#else +#define MSM_BOOT_UART_DM_RX_TOTAL_SNAP(base) ((base) + 0x38) +#endif + +/* UART TX FIFO Status Register */ +#define MSM_BOOT_UART_DM_TXFS(base) ((base) + 0x4C) +#define MSM_BOOT_UART_DM_TXFS_STATE_LSB(x) MSM_BOOT_UART_DM_EXTR_BITS(x, 0, 6) +#define MSM_BOOT_UART_DM_TXFS_STATE_MSB(x) \ + MSM_BOOT_UART_DM_EXTR_BITS(x, 14, 31) +#define MSM_BOOT_UART_DM_TXFS_BUF_STATE(x) MSM_BOOT_UART_DM_EXTR_BITS(x, 7, 9) +#define MSM_BOOT_UART_DM_TXFS_ASYNC_STATE(x) \ + MSM_BOOT_UART_DM_EXTR_BITS(x, 10, 13) + +/* UART RX FIFO Status Register */ +#define MSM_BOOT_UART_DM_RXFS(base) ((base) + 0x50) +#define MSM_BOOT_UART_DM_RXFS_STATE_LSB(x) MSM_BOOT_UART_DM_EXTR_BITS(x, 0, 6) +#define MSM_BOOT_UART_DM_RXFS_STATE_MSB(x) \ + MSM_BOOT_UART_DM_EXTR_BITS(x, 14, 31) +#define MSM_BOOT_UART_DM_RXFS_BUF_STATE(x) MSM_BOOT_UART_DM_EXTR_BITS(x, 7, 9) +#define MSM_BOOT_UART_DM_RXFS_ASYNC_STATE(x) \ + MSM_BOOT_UART_DM_EXTR_BITS(x, 10, 13) + +/* Macros for Common Errors */ +#define MSM_BOOT_UART_DM_E_SUCCESS 0 +#define MSM_BOOT_UART_DM_E_FAILURE 1 +#define MSM_BOOT_UART_DM_E_TIMEOUT 2 +#define MSM_BOOT_UART_DM_E_INVAL 3 +#define MSM_BOOT_UART_DM_E_MALLOC_FAIL 4 +#define MSM_BOOT_UART_DM_E_RX_NOT_READY 5 + +void qcs405_uart_init(void); + +#endif /* __UART_DM_H__ */ diff --git a/src/soc/qualcomm/qcs405/uart.c b/src/soc/qualcomm/qcs405/uart.c new file mode 100644 index 0000000000..4a4331220a --- /dev/null +++ b/src/soc/qualcomm/qcs405/uart.c @@ -0,0 +1,303 @@ +/* + * Copyright (c) 2012-2019 The Linux Foundation. All rights reserved. + * Source : APQ8064 LK boot + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of The Linux Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <device/mmio.h> +#include <boot/coreboot_tables.h> +#include <console/console.h> +#include <console/uart.h> +#include <delay.h> +#include <gpio.h> +#include <soc/clock.h> +#include <soc/blsp.h> +#include <soc/uart.h> +#include <soc/cdp.h> +#include <stdint.h> +#include <stdlib.h> +#include <soc/iomap.h> + +#define FIFO_DATA_SIZE 4 + +typedef struct { + void *uart_dm_base; + unsigned int blsp_uart; + gpio_func_data_t dbg_uart_gpio[NO_OF_DBG_UART_GPIOS]; +} uart_params_t; + +void ipq_configure_gpio(const gpio_func_data_t *gpio, unsigned int count) +{ + int i; + + for (i = 0; i < count; i++) { + gpio_configure(gpio->gpio, gpio->func, + gpio->pull, gpio->drvstr, gpio->enable); + gpio++; + } +} + +static const uart_params_t uart_board_param = { + .uart_dm_base = UART2_DM_BASE, + .blsp_uart = BLSP1_UART2, + .dbg_uart_gpio = { + { + .gpio = GPIO(17), + .func = 1, + .dir = GPIO_OUTPUT, + .pull = GPIO_PULL_UP, + .enable = GPIO_OUTPUT + }, + { + .gpio = GPIO(18), + .func = 1, + .dir = GPIO_INPUT, + .pull = GPIO_NO_PULL, + .enable = GPIO_INPUT + }, + }, +}; + +/** + * @brief msm_boot_uart_dm_init_rx_transfer - Init Rx transfer + * @param uart_dm_base: UART controller base address + */ +static unsigned int msm_boot_uart_dm_init_rx_transfer(void *uart_dm_base) +{ + /* Reset receiver */ + write32(MSM_BOOT_UART_DM_CR(uart_dm_base), + MSM_BOOT_UART_DM_CMD_RESET_RX); + + /* Enable receiver */ + write32(MSM_BOOT_UART_DM_CR(uart_dm_base), + MSM_BOOT_UART_DM_CR_RX_ENABLE); + write32(MSM_BOOT_UART_DM_DMRX(uart_dm_base), + MSM_BOOT_UART_DM_DMRX_DEF_VALUE); + + /* Clear stale event */ + write32(MSM_BOOT_UART_DM_CR(uart_dm_base), + MSM_BOOT_UART_DM_CMD_RES_STALE_INT); + + /* Enable stale event */ + write32(MSM_BOOT_UART_DM_CR(uart_dm_base), + MSM_BOOT_UART_DM_GCMD_ENA_STALE_EVT); + + return MSM_BOOT_UART_DM_E_SUCCESS; +} + +#if CONFIG(DRIVERS_UART) +static unsigned int msm_boot_uart_dm_init(void *uart_dm_base); + +/* Received data is valid or not */ +static int valid_data = 0; + +/* Received data */ +static unsigned int word = 0; + + +void uart_tx_byte(int idx, unsigned char data) +{ + int num_of_chars = 1; + void *base = uart_board_param.uart_dm_base; + + /* Wait until transmit FIFO is empty. */ + while (!(read32(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. + */ + write32(MSM_BOOT_UART_DM_NO_CHARS_FOR_TX(base), num_of_chars); + + /* And now write the character(s) */ + write32(MSM_BOOT_UART_DM_TF(base, 0), data); +} +#endif /* CONFIG_SERIAL_UART */ + +/** + * @brief msm_boot_uart_dm_reset - resets UART controller + * @param base: UART controller base address + */ +static unsigned int msm_boot_uart_dm_reset(void *base) +{ + write32(MSM_BOOT_UART_DM_CR(base), MSM_BOOT_UART_DM_CMD_RESET_RX); + write32(MSM_BOOT_UART_DM_CR(base), MSM_BOOT_UART_DM_CMD_RESET_TX); + write32(MSM_BOOT_UART_DM_CR(base), + MSM_BOOT_UART_DM_CMD_RESET_ERR_STAT); + write32(MSM_BOOT_UART_DM_CR(base), MSM_BOOT_UART_DM_CMD_RES_TX_ERR); + write32(MSM_BOOT_UART_DM_CR(base), MSM_BOOT_UART_DM_CMD_RES_STALE_INT); + + return MSM_BOOT_UART_DM_E_SUCCESS; +} + +/** + * @brief msm_boot_uart_dm_init - initilaizes UART controller + * @param uart_dm_base: UART controller base address + */ +unsigned int msm_boot_uart_dm_init(void *uart_dm_base) +{ + /* Configure UART mode registers MR1 and MR2 */ + /* Hardware flow control isn't supported */ + write32(MSM_BOOT_UART_DM_MR1(uart_dm_base), 0x0); + + /* 8-N-1 configuration: 8 data bits - No parity - 1 stop bit */ + write32(MSM_BOOT_UART_DM_MR2(uart_dm_base), + MSM_BOOT_UART_DM_8_N_1_MODE); + + /* Configure Interrupt Mask register IMR */ + write32(MSM_BOOT_UART_DM_IMR(uart_dm_base), + MSM_BOOT_UART_DM_IMR_ENABLED); + + /* + * Configure Tx and Rx watermarks configuration registers + * TX watermark value is set to 0 - interrupt is generated when + * FIFO level is less than or equal to 0 + */ + write32(MSM_BOOT_UART_DM_TFWR(uart_dm_base), + MSM_BOOT_UART_DM_TFW_VALUE); + + /* RX watermark value */ + write32(MSM_BOOT_UART_DM_RFWR(uart_dm_base), + MSM_BOOT_UART_DM_RFW_VALUE); + + /* Configure Interrupt Programming Register */ + /* Set initial Stale timeout value */ + write32(MSM_BOOT_UART_DM_IPR(uart_dm_base), + MSM_BOOT_UART_DM_STALE_TIMEOUT_LSB); + + /* Configure IRDA if required */ + /* Disabling IRDA mode */ + write32(MSM_BOOT_UART_DM_IRDA(uart_dm_base), 0x0); + + /* Configure hunt character value in HCR register */ + /* Keep it in reset state */ + write32(MSM_BOOT_UART_DM_HCR(uart_dm_base), 0x0); + + /* + * Configure Rx FIFO base address + * Both TX/RX shares same SRAM and default is half-n-half. + * Sticking with default value now. + * As such RAM size is (2^RAM_ADDR_WIDTH, 32-bit entries). + * We have found RAM_ADDR_WIDTH = 0x7f + */ + + /* Issue soft reset command */ + msm_boot_uart_dm_reset(uart_dm_base); + + /* Enable/Disable Rx/Tx DM interfaces */ + /* Data Mover not currently utilized. */ + write32(MSM_BOOT_UART_DM_DMEN(uart_dm_base), 0x0); + + /* Enable transmitter */ + write32(MSM_BOOT_UART_DM_CR(uart_dm_base), + MSM_BOOT_UART_DM_CR_TX_ENABLE); + + /* Initialize Receive Path */ + msm_boot_uart_dm_init_rx_transfer(uart_dm_base); + + return 0; +} + +/** + * @brief qcs405_uart_init - initializes UART + * + * Initializes clocks, GPIO and UART controller. + */ +void uart_init(int idx) +{ + /* Note int idx isn't used in this driver. */ + void *dm_base; + + dm_base = uart_board_param.uart_dm_base; + + if (read32(MSM_BOOT_UART_DM_CSR(dm_base)) == 0xFF) + return; /* UART must have been already initialized. */ + + clock_configure_uart(1843200); + clock_enable_uart(); + + ipq_configure_gpio(uart_board_param.dbg_uart_gpio, + NO_OF_DBG_UART_GPIOS); + + write32(MSM_BOOT_UART_DM_CSR(dm_base), 0xFF); + + /* Initialize UART_DM */ + msm_boot_uart_dm_init(dm_base); +} + +/* for the benefit of non-console uart init */ +void qcs405_uart_init(void) +{ + uart_init(0); +} + +/** + * @brief uart_tx_flush - transmits a string of data + * @param idx: string to transmit + */ +void uart_tx_flush(int idx) +{ + void *base = uart_board_param.uart_dm_base; + + while (!(read32(MSM_BOOT_UART_DM_SR(base)) & + MSM_BOOT_UART_DM_SR_TXEMT)) + ; +} + +#if CONFIG(DRIVERS_UART) +/** + * qcs405_serial_getc - reads a character + * + * Returns the character read from serial port. + */ +uint8_t uart_rx_byte(int idx) +{ + uint8_t byte; + + byte = (uint8_t)(word & 0xff); + word = word >> 8; + valid_data--; + + return byte; +} +#endif + +#ifndef __PRE_RAM__ +void uart_fill_lb(void *data) +{ + struct lb_serial serial; + + serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED; + serial.baseaddr = (uint64_t)UART2_DM_BASE; + serial.baud = get_uart_baudrate(); + serial.regwidth = 1; + + lb_add_serial(&serial, data); + lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data); +} +#endif |