AM335x(TQ335x)学习笔记——am335x配置修改（转）

freewing 发表于 2015-9-25 09:46:51

AM335x开发板红色为注释了的蓝色为添加上的PATH 表示当前修改文件的路径line表示要修改的代码在当前文件的开始行在原来的开发板上修改 LCD 的分辨率：ti-sdk-am335x-evm/board-support/linux-3.2-psp04.06.00.07.sdk/drivers/video/da8xx-fb.c
//@line 275
 = {
 .name = "HANSTAR_HSD070IDW1_A",
//@@ .width = 800,
//@@ .height = 480,
 .width = 800,//@@
 .height = 600, //@@

 .hfp = 210,
 .hbp = 46,
 .hsw = 40,
 .vfp = 12,
 .vbp = 23,
 .vsw = 20,
 .pxl_clk = 40000000,
 .invert_pxl_clk = 0,
 },
/* add end */修改 LCD 显示ide颜色位，从24色变为 16色先修改 bpp 的取值范围ti-sdk-am335x-evm/board-support/linux-3.2-psp04.06.00.07.sdk/arch/arm/mach-omap2
/board-am335xevm.c
//@line 127
static const struct display_panel disp_panel = {
 WVGA,

//@@ 32,
 32, //@@max_bpp
//@@ 32,
 8, //@@min_bpp

 COLOR_ACTIVE,
};再修改当前 LCD 配置的 bpp 大小ti-sdk-am335x-evm/board-support/linux-3.2-psp04.06.00.07.sdk/arch/arm/mach-omap2
/board-am335xevm.c
//@line 154
static struct lcd_ctrl_config lcd_cfg = {
 &disp_panel,
 .ac_bias = 255,
 .ac_bias_intrpt = 0,
 .dma_burst_sz = 16,

//@@ .bpp = 32,
 .bpp = 16, //@@

 .fdd = 0x80,
 .tft_alt_mode = 0,

 .stn_565_mode = 0,

 .mono_8bit_mode = 0,
 .invert_line_clock = 1,
 .invert_frm_clock = 1,
 .sync_edge = 0,
 .sync_ctrl = 1,
 .raster_order = 0,
};使能 uart2。需要修改 uart2 rxd，txd 的 pin 属性硬件上修改焊接 R486，R487 软件上修改uart2 的 pin 配置PATH: linux-3.2-psp04.06.07.sdk/arch/arm/mach-omap2/board-am335xevm.c
//line 668
/* Module pin mux for uart2 */
static struct pinmux_config uart2_pin_mux[] = {
/*@@
{"spi0_sclk.uart2_rxd", OMAP_MUX_MODE1 | AM33XX_SLEWCTRL_SLOW |
 AM33XX_PIN_INPUT_PULLUP},
{"spi0_d0.uart2_txd", OMAP_MUX_MODE1 | AM33XX_PULL_UP |
 AM33XX_PULL_DISA |
 AM33XX_SLEWCTRL_SLOW},
@@*/
{"spi0_sclk.uart2_rxd", OMAP_MUX_MODE1 | AM33XX_PIN_INPUT_PULLUP},
{"spi0_d0.uart2_txd",OMAP_MUX_MODE1 | AM33XX_PULL_UP | AM33XX_PULL_ENBL},
{NULL, 0},

};失能 spi0PATH: linux-3.2-psp04.06.07.sdk/arch/arm/mach-omap2/board-am335xevm.c
//line 1795 @@
//@@ {spi0_init, DEV_ON_DGHTR_BRD, PROFILE_2}; //uart2_rxd/txd_mux3

修改当前 uart2 使用的板子类型
PATH: linux-3.2-psp04.06.07.sdk/arch/arm/mach-omap2/board-am335xevm.c
// line 1802
//@@ {uart2_init, DEV_ON_DGHTR_BRD, PROFILE_3},
 {uart2_init, DEV_ON_BASEBOARD, PROFILE_ALL}, //@@修改当前 uart2 使用的板子类型PATH: linux-3.2-psp04.06.07.sdk/arch/arm/mach-omap2/board-am335xevm.c
// line 1802
//@@ {uart2_init, DEV_ON_DGHTR_BRD, PROFILE_3},
 {uart2_init, DEV_ON_BASEBOARD, PROFILE_ALL}, //@@使能 uart4 硬件上的修改：焊接上 R362，使 uart4 txd 端可以发送数据；断开 R364 的连接（这是 U18 的 ROUT2 端，uart4 通过该端口接收数据），断开 R61 的连接（U4 的 pin 45 连接着 AM335X_UART0_CTSn，这会使 uart4 无法接收数据），把（R364与 MCU 的连接端）与（J52 的 pin 5）相连接，使 uart4 rxd端可以通过 UART0_CTSn 接收数据；软件上的修改：在 UART0_CTSN pin 上添加 uart4 rxd在 UART0_RTSN pin 上添加 uart4 txd
PATH：linux-3.2-psp04.06.00.07.sdk/arch/arm/mach-omap2
//line 302 @@
/*@@
 _AM33XX_MUXENTRY(UART0_CTSN, 0,
 "uart0_ctsn", NULL, "d_can1_tx", "i2c1_sda",
 "spi1_d0", NULL, NULL, "gpio1_8"),
 _AM33XX_MUXENTRY(UART0_RTSN, 0,
 "uart0_rtsn", NULL, "d_can1_rx", "i2c1_scl",
 "spi1_d1", "spi1_cs0", NULL, "gpio1_9"),
@@*/
 //@@
 _AM33XX_MUXENTRY(UART0_CTSN, 0,
 "uart0_ctsn", "uart4_rxd", "d_can1_tx", "i2c1_sda",
 "spi1_d0", NULL, NULL, "gpio1_8"),
 _AM33XX_MUXENTRY(UART0_RTSN, 0,
 "uart0_rtsn", "uart4_txd", "d_can1_rx", "i2c1_scl",
 "spi1_d1", "spi1_cs0", NULL, "gpio1_9"),
 //@@添加 uart4 的配置等PATH: linux-3.2-psp04.06.07.sdk/arch/arm/mach-omap2/board-am335xevm.c添加 uart4 的配置//line 683 @@
/*@@ uart4*/
static struct pinmux_config uart4_pin_mux[] = {
{"uart0_ctsn.uart4_rxd",OMAP_MUX_MODE1 | AM33XX_PIN_INPUT_PULLUP},
{"uart0_rtsn.uart4_txd",OMAP_MUX_MODE1 | AM33XX_PULL_ENBL},
{NULL, 0},
};添加 uart4 的初始化//line 1073 @@
/*@@ setup uart4 */
static void uart4_init(int evm_id, int profile)
{
setup_pin_mux(uart4_pin_mux);
return;
}把 uart4 的初始化添加到开机启动中//line 1086 @@
{uart4_init, DEV_ON_BASEBOARD, PROFILE_ALL}, //@@失能 d_can_init，其会影响 uart4 的收发/line 1800
//@@ {d_can_init, DEV_ON_DGHTR_BRD, PROFILE_1}, //uart4_rxd/txd_mux1使能 uart3 硬件上修改；焊接 J51 上的 R495，使 ECAP0_IN_PWM0_OUT 管脚可以复用为 UART3_TXD。断开 J4 （MMC0）上的 R380，使 AM335x_SPI0_CS1 管脚可以复用为 UART_RXD。把（R380中连接MMC0 卡套端）与（TP69（AM335X_MCASP0_ACLKX））相连接，使能MMC0，使系统可以从 SD卡启动软件上修改PATH: linux-3.2-psp04.06.07.sdk/arch/arm/mach-omap2/board-am335xevm.c重新配置 MMC0//line 607 @@
/* Module pin mux for mmc0 */

/* Module pin mux for mmc0 */
static struct pinmux_config mmc0_pin_mux[] = {
 {"mmc0_dat3.mmc0_dat3",OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
 {"mmc0_dat2.mmc0_dat2",OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
 {"mmc0_dat1.mmc0_dat1",OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
 {"mmc0_dat0.mmc0_dat0",OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
 {"mmc0_clk.mmc0_clk", OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
 {"mmc0_cmd.mmc0_cmd",OMAP_MUX_MODE0 | AM33XX_PIN_INPUT_PULLUP},
 {"mcasp0_aclkr.mmc0_sdwp",OMAP_MUX_MODE7 | AM33XX_PIN_INPUT_PULLUP},
//@@注释 {"spi0_cs1.mmc0_sdcd", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT_PULLUP},
 {"mcasp0_aclkx.mmc0_sdcd", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT_PULLUP},//@@添加
 {NULL, 0},
};把 uart3 的初始化添加到开机启动中//line 1805
{uart3_init, DEV_ON_BASEBOARD, PROFILE_ALL}, //@@
/* Style Definitions */ table.MsoNormalTable {mso-style-name:普通表格; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;}

TQ335X开发板：http://www.embedsky.com/index.php?s=/Product/show/id/49.html

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AM335x(TQ335x)学习笔记——am335x配置修改（转）