sdio: add sdio driver support on m8b

PD#141217: add sdio dirver support on m8b ultra high speed SDR104 85M test on m8b_m200. Change-Id: I1aea3a8d77039be92e1759cb06eac96ed2915524 Signed-off-by: Nan Li <nan.li@amlogic.com>
2026-06-08 03:40:35 +09:00 · 2017-05-12 17:53:04 +08:00
parent 940abdab8c
commit 75a88ba14c
7 changed files with 147 additions and 12 deletions
--- a/arch/arm/boot/dts/amlogic/meson8b.dtsi
+++ b/arch/arm/boot/dts/amlogic/meson8b.dtsi
@@ -499,17 +499,26 @@
 			};

 			sdhc_emmc_clk_cmd_pins:sdhc_emmc_clk_cmd_pins {
-				mux {
+				mux1 {
 					groups = "sdxc_clk_c",
 						"sdxc_cmd_c";
 					function = "sdxc_c";
 					input-enable;
 					bias-pull-up;
 				};
+				mux2 {
+					groups = "GPIOX_0",
+						"GPIOX_1",
+						"GPIOX_2",
+						"GPIOX_3",
+						"GPIOX_8",
+						"GPIOX_9";
+					function = "gpio";
+				};
 			};

 			sdhc_emmc_all_pins:sdhc_emmc_all_pins {
-				mux {
+				mux1 {
 					groups = "sdxc_d0_c",
 						"sdxc_d13_c",
 						"sdxc_d47_c",
@@ -519,6 +528,15 @@
 					input-enable;
 					bias-pull-up;
 				};
+				mux2 {
+					groups = "GPIOX_0",
+						"GPIOX_1",
+						"GPIOX_2",
+						"GPIOX_3",
+						"GPIOX_8",
+						"GPIOX_9";
+					function = "gpio";
+				};
 			};

 			sdhc_sd_clk_cmd_pins:sdhc_sd_clk_cmd_pins {
@@ -544,17 +562,31 @@
 			};

 			sdhc_sdio_clk_cmd_pins:sdhc_sdio_clk_cmd_pins {
-				mux {
+				mux1 {
 					groups = "sdxc_clk_a",
 						"sdxc_cmd_a";
 					function = "sdxc_a";
 					input-enable;
 					bias-pull-up;
 				};
+				mux2 {
+					groups = "BOOT_0",
+						"BOOT_1",
+						"BOOT_2",
+						"BOOT_3",
+						"BOOT_4",
+						"BOOT_5",
+						"BOOT_6",
+						"BOOT_7",
+						"BOOT_8",
+						"BOOT_10";
+					function = "gpio";
+				};
+
 			};

 			sdhc_sdio_all_pins:sdhc_sdio_all_pins {
-				mux {
+				mux1 {
 					groups = "sdxc_d0_1_a",
 						"sdxc_d13_1_a",
 						"sdxc_clk_a",
@@ -563,6 +595,19 @@
 					input-enable;
 					bias-pull-up;
 				};
+				mux2 {
+					groups = "BOOT_0",
+						"BOOT_1",
+						"BOOT_2",
+						"BOOT_3",
+						"BOOT_4",
+						"BOOT_5",
+						"BOOT_6",
+						"BOOT_7",
+						"BOOT_8",
+						"BOOT_10";
+					function = "gpio";
+				};
 			};

 			uart_a_pins: uart_a_pins {
--- a/arch/arm/boot/dts/amlogic/meson8b_m200.dts
+++ b/arch/arm/boot/dts/amlogic/meson8b_m200.dts
@@ -175,6 +175,42 @@
 			 * other:reserved
 			 */
 		};
+
+		sdio {
+			status = "okay";
+			port = <3>;
+			/* 0:sdio_a,
+			 * 1:sdio_b,
+			 * 2:sdio_c,
+			 * 3:sdhc_a,
+			 * 4:sdhc_b,
+			 * 5:sdhc_c
+			 */
+			pinname = "sdio";
+			ocr_avail = <0x00200080>;
+			/* 3.3:0x200000, 1.8+3.3:0x00200080 */
+			caps = "MMC_CAP_4_BIT_DATA",
+				 "MMC_CAP_MMC_HIGHSPEED",
+				 "MMC_CAP_SD_HIGHSPEED",
+				 "MMC_CAP_NONREMOVABLE",
+				 "MMC_CAP_UHS_SDR12",
+				 "MMC_CAP_UHS_SDR25",
+				 "MMC_CAP_UHS_SDR50",
+				 "MMC_CAP_UHS_SDR104",
+				 "MMC_PM_KEEP_POWER";
+			f_min = <300000>;
+			f_max = <100000000>;
+			max_req_size = <0x20000>; /* 128KB */
+			card_type = <3>;
+			/* 0:unknown,
+			 * 1:mmc card(include eMMC),
+			 * 2:sd card(include tSD),
+			 * 3:sdio device(ie:sdio-wifi),
+			 * 4:SD combo (IO+mem) card,
+			 * 5:NON sdio device(means sd/mmc card),
+			 * other:reserved
+			 */
+		};
 	};

 	cpufreq-meson{
--- a/drivers/amlogic/mmc/aml_sdhc_m8.c
+++ b/drivers/amlogic/mmc/aml_sdhc_m8.c
@@ -1000,15 +1000,15 @@ static void aml_sdhc_print_err(struct amlsd_host *host)
 				"Error: SDHC is gated clock,HHI_GCLK_MPEG0=%#x, bit14 is 0\n",
 				tmp_reg);
 	}
-	/*	aml_dbg_print_pinmux();*/

 #ifdef CONFIG_MMC_AML_DEBUG
+	aml_dbg_print_pinmux();
 	if (xfer_step == XFER_TIMER_TIMEOUT) { /* by aml_sdhc_timeout() */
 		sdhc_err("old sdhc reg:\n");
 		aml_sdhc_print_reg_(host->reg_buf);
 	}
+	aml_sdhc_print_reg(host);
 #endif
-	/*	aml_sdhc_print_reg(host);*/
 }

 /*error handler*/
@@ -1323,7 +1323,9 @@ static irqreturn_t aml_sdhc_irq(int irq, void *dev_id)
 			return IRQ_HANDLED;
 		}
 		WARN_ON(!mrq);
-		/*	aml_sdhc_print_reg(host);*/
+#ifdef CONFIG_MMC_AML_DEBUG
+		aml_sdhc_print_reg(host);
+#endif
 		spin_unlock_irqrestore(&host->mrq_lock, flags);
 		return IRQ_HANDLED;
 	}
--- a/drivers/amlogic/mmc/aml_sdio.c
+++ b/drivers/amlogic/mmc/aml_sdio.c
@@ -545,7 +545,7 @@ timeout_handle:
 	aml_dbg_verify_pinmux(pdata);
 	aml_dbg_verify_pull_up(pdata);
 	aml_sdio_print_reg(host);
-	/* aml_dbg_print_pinmux(); */
+	aml_dbg_print_pinmux();
 #endif

 	if (host->mrq->stop && aml_card_type_mmc(pdata) && !host->cmd_is_stop) {
--- a/drivers/amlogic/mmc/amlsd.c
+++ b/drivers/amlogic/mmc/amlsd.c
@@ -829,8 +829,48 @@ bool is_emmc_exist(struct amlsd_host *host) // is eMMC/tSD exist
 	return false;
 }

-/*-------------------debug---------------------*/
+/*----sdhc----*/
+void aml_sdhc_print_reg_(u32 *buf)
+{
+	pr_info("***********SDHC_REGS***********\n");
+	pr_info("SDHC_ARGU: 0x%08x\n", buf[SDHC_ARGU/4]);
+	pr_info("SDHC_SEND: 0x%08x\n", buf[SDHC_SEND/4]);
+	pr_info("SDHC_CTRL: 0x%08x\n", buf[SDHC_CTRL/4]);
+	pr_info("SDHC_STAT: 0x%08x\n", buf[SDHC_STAT/4]);
+	pr_info("SDHC_CLKC: 0x%08x\n", buf[SDHC_CLKC/4]);
+	pr_info("SDHC_ADDR: 0x%08x\n", buf[SDHC_ADDR/4]);
+	pr_info("SDHC_PDMA: 0x%08x\n", buf[SDHC_PDMA/4]);
+	pr_info("SDHC_MISC: 0x%08x\n", buf[SDHC_MISC/4]);
+	pr_info("SDHC_DATA: 0x%08x\n", buf[SDHC_DATA/4]);
+	pr_info("SDHC_ICTL: 0x%08x\n", buf[SDHC_ICTL/4]);
+	pr_info("SDHC_ISTA: 0x%08x\n", buf[SDHC_ISTA/4]);
+	pr_info("SDHC_SRST: 0x%08x\n", buf[SDHC_SRST/4]);
+	pr_info("SDHC_ESTA: 0x%08x\n", buf[SDHC_ESTA/4]);
+	pr_info("SDHC_ENHC: 0x%08x\n", buf[SDHC_ENHC/4]);
+	pr_info("SDHC_CLK2: 0x%08x\n", buf[SDHC_CLK2/4]);
+}

+void aml_sdhc_print_reg(struct amlsd_host *host)
+{
+	u32 buf[16];
+
+	memcpy_fromio(buf, host->base, 0x3C);
+	aml_sdhc_print_reg_(buf);
+}
+
+void aml_dbg_print_pinmux(void)
+{
+	pr_info("Pinmux:\n");
+	pr_info("REG2 = 0x%08x\n", aml_read_cbus(PERIPHS_PIN_MUX_2));
+	pr_info("REG3 = 0x%08x\n", aml_read_cbus(PERIPHS_PIN_MUX_3));
+	pr_info("REG4 = 0x%08x\n", aml_read_cbus(PERIPHS_PIN_MUX_4));
+	pr_info("REG5 = 0x%08x\n", aml_read_cbus(PERIPHS_PIN_MUX_5));
+	pr_info("REG6 = 0x%08x\n", aml_read_cbus(PERIPHS_PIN_MUX_6));
+	pr_info("REG7 = 0x%08x\n", aml_read_cbus(PERIPHS_PIN_MUX_7));
+	pr_info("REG8 = 0x%08x\n", aml_read_cbus(PERIPHS_PIN_MUX_8));
+}
+
+/*-------------------debug---------------------*/
 unsigned long sdhc_debug; // 0xffffffff;
 static int __init sdhc_debug_setup(char *str)
 {
--- a/drivers/amlogic/pinctrl/pinctrl-meson8b.c
+++ b/drivers/amlogic/pinctrl/pinctrl-meson8b.c
@@ -414,6 +414,17 @@ static struct meson_pmx_group meson8b_cbus_groups[] = {
 	GPIO_GROUP(DIF_4_P, 0),
 	GPIO_GROUP(DIF_4_N, 0),

+	GPIO_GROUP(BOOT_0, 0),
+	GPIO_GROUP(BOOT_1, 0),
+	GPIO_GROUP(BOOT_2, 0),
+	GPIO_GROUP(BOOT_3, 0),
+	GPIO_GROUP(BOOT_4, 0),
+	GPIO_GROUP(BOOT_5, 0),
+	GPIO_GROUP(BOOT_6, 0),
+	GPIO_GROUP(BOOT_7, 0),
+	GPIO_GROUP(BOOT_8, 0),
+	GPIO_GROUP(BOOT_10, 0),
+
 	/* bank X */
 	GROUP(sd_d0_a,		8,	5),
 	GROUP(sd_d1_a,		8,	4),
--- a/include/linux/amlogic/amlsd.h
+++ b/include/linux/amlogic/amlsd.h
@@ -168,8 +168,6 @@ extern int storage_flag;
 extern void aml_debug_print_buf(char *buf, int size);
 extern int aml_buf_verify(int *buf, int blocks, int lba);
 extern void aml_sdhc_init_debugfs(struct mmc_host *mmc);
-void aml_sdhc_print_reg_(u32 *buf);
-extern void aml_sdhc_print_reg(struct amlsd_host *host);
 extern void aml_sdio_init_debugfs(struct mmc_host *mmc);
 extern void aml_sd_emmc_init_debugfs(struct mmc_host *mmc);
 extern void aml_sdio_print_reg(struct amlsd_host *host);
@@ -179,6 +177,10 @@ extern int add_part_table(struct mtd_partition *part, unsigned int nr_part);
 extern int add_emmc_partition(struct gendisk *disk);
 #endif
 #ifdef CONFIG_AMLOGIC_M8B_MMC
+void aml_sdhc_print_reg_(u32 *buf);
+extern void aml_sdhc_print_reg(struct amlsd_host *host);
+void aml_dbg_print_pinmux(void);
+
 extern size_t aml_sg_copy_buffer(struct scatterlist *sgl, unsigned int nents,
 		void *buf, size_t buflen, int to_buffer);
 #endif
@@ -214,7 +216,6 @@ bool is_emmc_exist(struct amlsd_host *host);
 void aml_devm_pinctrl_put(struct amlsd_host *host);
 /* void of_init_pins (struct amlsd_platform* pdata); */

-void aml_dbg_print_pinmux(void);
 #ifdef CONFIG_MMC_AML_DEBUG
 void aml_dbg_verify_pull_up(struct amlsd_platform *pdata);
 int aml_dbg_verify_pinmux(struct amlsd_platform *pdata);