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Merge pull request #1516 from zhuangwei123/master 

[bsp/ls1cdev]SPI0添加CS0支持，移除drv_spi.c中的msd_init。SPI00可用于注册NORFLASH驱动
This commit is contained in:
Bernard Xiong 2018-06-10 15:54:44 +08:00 committed by GitHub
parent 6724fb3994 e7f78855bd
commit 1781656301
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 40 additions and 33 deletions
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71
bsp/ls1cdev/drivers/drv_spi.c
View File

@ -19,7 +19,8 @@
*
* Change Logs:
* Date Author Notes
* 2017-11-02 勤为本 first version
* 2017-11-02 勤为本 first version
* 2018-06-09 zhuangwei add spi0 cs0 support,remove msd_init
*/
#include <rtthread.h>
@ -42,14 +43,14 @@ static rt_err_t configure(struct rt_spi_device *device, struct rt_spi_configurat
static rt_uint32_t xfer(struct rt_spi_device *device, struct rt_spi_message *message);
static struct rt_spi_ops ls1c_spi_ops =
static struct rt_spi_ops ls1c_spi_ops =
{
.configure = configure,
.xfer = xfer
};
static rt_err_t configure(struct rt_spi_device *device,
static rt_err_t configure(struct rt_spi_device *device,
struct rt_spi_configuration *configuration)
{
struct rt_spi_bus *spi_bus = NULL;
@ -69,28 +70,28 @@ static rt_err_t configure(struct rt_spi_device *device,
spi_base = ls1c_spi_get_base(SPIx);
{
// 使能SPI控制器，master模式，关闭中断
// 使能SPI控制器，master模式，关闭中断
reg_write_8(0x53, spi_base + LS1C_SPI_SPCR_OFFSET);
// 清空状态寄存器
// 清空状态寄存器
reg_write_8(0xc0, spi_base + LS1C_SPI_SPSR_OFFSET);
// 1字节产生中断，采样(读)与发送(写)时机同时
// 1字节产生中断，采样(读)与发送(写)时机同时
reg_write_8(0x03, spi_base + LS1C_SPI_SPER_OFFSET);
// 关闭SPI flash
// 关闭SPI flash
val = reg_read_8(spi_base + LS1C_SPI_SFC_PARAM_OFFSET);
val &= 0xfe;
reg_write_8(val, spi_base + LS1C_SPI_SFC_PARAM_OFFSET);
// spi flash时序控制寄存器
// spi flash时序控制寄存器
reg_write_8(0x05, spi_base + LS1C_SPI_SFC_TIMING_OFFSET);
}
// baudrate
ls1c_spi_set_clock(spi_base, configuration->max_hz);
// 设置通信模式(时钟极性和相位)
// 设置通信模式(时钟极性和相位)
if (configuration->mode & RT_SPI_CPOL) // cpol
{
cpol = SPI_CPOL_1;
@ -115,7 +116,7 @@ static rt_err_t configure(struct rt_spi_device *device,
}
static rt_uint32_t xfer(struct rt_spi_device *device,
static rt_uint32_t xfer(struct rt_spi_device *device,
struct rt_spi_message *message)
{
struct rt_spi_bus *spi_bus = NULL;
@ -148,7 +149,7 @@ static rt_uint32_t xfer(struct rt_spi_device *device,
ls1c_spi_set_cs(spi_base, cs, 0);
}
// 收发数据
// 收发数据
send_ptr = message->send_buf;
recv_ptr = message->recv_buf;
while (size--)
@ -180,7 +181,7 @@ static rt_uint32_t xfer(struct rt_spi_device *device,
#ifdef RT_USING_SPI0
struct ls1c_spi ls1c_spi0 =
struct ls1c_spi ls1c_spi0 =
{
.SPIx = LS1C_SPI_0,
};
@ -190,7 +191,7 @@ static struct rt_spi_bus spi0_bus;
#ifdef RT_USING_SPI1
struct ls1c_spi ls1c_spi1 =
struct ls1c_spi ls1c_spi1 =
{
.SPIx = LS1C_SPI_1,
};
@ -200,10 +201,10 @@ static struct rt_spi_bus spi1_bus;
/*
* 初始化并注册龙芯1c的spi总线
* @SPI SPI总线，比如LS1C_SPI_0， LS1C_SPI_1
* @spi_bus_name 总线名字
* @ret
* 初始化并注册龙芯1c的spi总线
* @SPI SPI总线，比如LS1C_SPI_0， LS1C_SPI_1
* @spi_bus_name 总线名字
* @ret
*/
rt_err_t ls1c_spi_bus_register(rt_uint8_t SPI, const char *spi_bus_name)
{
@ -235,14 +236,16 @@ int ls1c_hw_spi_init(void)
pin_set_purpose(79, PIN_PURPOSE_OTHER);
pin_set_purpose(80, PIN_PURPOSE_OTHER);
pin_set_purpose(83, PIN_PURPOSE_OTHER);//cs2 - SD card
pin_set_purpose(82, PIN_PURPOSE_OTHER);//cs1
pin_set_remap(78, PIN_REMAP_FOURTH);
pin_set_remap(79, PIN_REMAP_FOURTH);
pin_set_remap(80, PIN_REMAP_FOURTH);
pin_set_remap(83, PIN_REMAP_FOURTH);//cs2 - SD card
pin_set_remap(82, PIN_REMAP_FOURTH);//cs1
ls1c_spi_bus_register(LS1C_SPI_0,"spi0");
pin_set_purpose(82, PIN_PURPOSE_OTHER);//cs1
pin_set_purpose(81, PIN_PURPOSE_OTHER);//cs0
pin_set_remap(78, PIN_REMAP_DEFAULT);
pin_set_remap(79, PIN_REMAP_DEFAULT);
pin_set_remap(80, PIN_REMAP_DEFAULT);
pin_set_remap(83, PIN_REMAP_DEFAULT);//cs2 - SD card
pin_set_remap(82, PIN_REMAP_DEFAULT);//CS1
pin_set_remap(81, PIN_REMAP_DEFAULT);//cs0
ls1c_spi_bus_register(LS1C_SPI_0, "spi0");
#endif
#ifdef RT_USING_SPI1
@ -254,7 +257,7 @@ int ls1c_hw_spi_init(void)
pin_set_remap(47, PIN_REMAP_THIRD);
pin_set_remap(48, PIN_REMAP_THIRD);
pin_set_remap(49, PIN_REMAP_THIRD);//CS0 - touch screen
ls1c_spi_bus_register(LS1C_SPI_1,"spi1");
ls1c_spi_bus_register(LS1C_SPI_1, "spi1");
#endif
@ -262,31 +265,35 @@ int ls1c_hw_spi_init(void)
#ifdef RT_USING_SPI0
/* attach cs */
{
static struct rt_spi_device spi_device0;
static struct rt_spi_device spi_device1;
static struct rt_spi_device spi_device2;
static struct ls1c_spi_cs spi_cs0;
static struct ls1c_spi_cs spi_cs1;
static struct ls1c_spi_cs spi_cs2;
/* spi02: CS2 SD Card*/
spi_cs2.cs = LS1C_SPI_CS_2;
rt_spi_bus_attach_device(&spi_device2, "spi02", "spi0", (void*)&spi_cs2);
rt_spi_bus_attach_device(&spi_device2, "spi02", "spi0", (void *)&spi_cs2);
spi_cs1.cs = LS1C_SPI_CS_1;
rt_spi_bus_attach_device(&spi_device1, "spi01", "spi0", (void*)&spi_cs1);
msd_init("sd0", "spi02");
rt_spi_bus_attach_device(&spi_device1, "spi01", "spi0", (void *)&spi_cs1);
spi_cs0.cs = LS1C_SPI_CS_0;
rt_spi_bus_attach_device(&spi_device0, "spi00", "spi0", (void *)&spi_cs0);
}
#endif
#ifdef RT_USING_SPI1
#ifdef RT_USING_SPI1
{
static struct rt_spi_device spi_device;
static struct ls1c_spi_cs spi_cs;
/* spi10: CS0 Touch*/
spi_cs.cs = LS1C_SPI_CS_0;
rt_spi_bus_attach_device(&spi_device, "spi10", "spi1", (void*)&spi_cs);
rt_spi_bus_attach_device(&spi_device, "spi10", "spi1", (void *)&spi_cs);
}
#endif
}
INIT_BOARD_EXPORT(ls1c_hw_spi_init);
#endif

2
bsp/ls1cdev/libraries/ls1c_spi.c
View File

@ -260,7 +260,7 @@ inline void ls1c_spi_clear(void *spi_base)
val = reg_read_8(spi_base + LS1C_SPI_SPSR_OFFSET);
if (LS1C_SPI_SPSR_WCOL_MASK & val)
{
rt_kprintf("[%s] clear register SPSR's wcol!\r\n"); // 手册和linux源码中不一样，加个打印看看
rt_kprintf("[%s] clear register SPSR's wcol!\r\n",__FUNCTION__); // 手册和linux源码中不一样，加个打印看看
reg_write_8(val & ~LS1C_SPI_SPSR_WCOL_MASK, spi_base + LS1C_SPI_SPSR_OFFSET); // 写0，linux源码中是写0
// reg_write_8(val | LS1C_SPI_SPSR_WCOL_MASK, spi_base + LS1C_SPI_SPSR_OFFSET); // 写1，按照1c手册，应该写1
}