board/p1010rdb: add pin mux and sdhc support in any boot
Since pins multiplexing, SDHC shares signals with IFC, with this patch:
To enable SDHC in case of NOR/NAND/SPI boot
a) For temporary use case in runtime without reboot system
run 'mux sdhc' in u-boot to validate SDHC with invalidating IFC.
b) For long-term use case
set 'esdhc' in hwconfig and save it.
To enable IFC in case of SD boot
a) For temporary use case in runtime without reboot system
run 'mux ifc' in u-boot to validate IFC with invalidating SDHC.
b) For long-term use case
set 'ifc' in hwconfig and save it.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
diff --git a/board/freescale/p1010rdb/law.c b/board/freescale/p1010rdb/law.c
index 0045127..ed41a05 100644
--- a/board/freescale/p1010rdb/law.c
+++ b/board/freescale/p1010rdb/law.c
@@ -9,11 +9,9 @@
#include <asm/mmu.h>
struct law_entry law_table[] = {
-#ifndef CONFIG_SDCARD
SET_LAW(CONFIG_SYS_FLASH_BASE_PHYS, LAW_SIZE_32M, LAW_TRGT_IF_IFC),
SET_LAW(CONFIG_SYS_CPLD_BASE_PHYS, LAW_SIZE_128K, LAW_TRGT_IF_IFC),
SET_LAW(CONFIG_SYS_NAND_BASE_PHYS, LAW_SIZE_1M, LAW_TRGT_IF_IFC),
-#endif
};
int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/board/freescale/p1010rdb/p1010rdb.c b/board/freescale/p1010rdb/p1010rdb.c
index 42153e6..ae8ba45 100644
--- a/board/freescale/p1010rdb/p1010rdb.c
+++ b/board/freescale/p1010rdb/p1010rdb.c
@@ -21,10 +21,8 @@
#include <asm/fsl_serdes.h>
#include <asm/fsl_ifc.h>
#include <asm/fsl_pci.h>
-
-#ifndef CONFIG_SDCARD
#include <hwconfig.h>
-#endif
+#include <i2c.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -33,8 +31,17 @@
#define MUX_CPLD_TDM 0x01
#define MUX_CPLD_SPICS0_FLASH 0x00
#define MUX_CPLD_SPICS0_SLIC 0x02
+#define PMUXCR1_IFC_MASK 0x00ffff00
+#define PMUXCR1_SDHC_MASK 0x00fff000
+#define PMUXCR1_SDHC_ENABLE 0x00555000
+
+enum {
+ MUX_TYPE_IFC,
+ MUX_TYPE_SDHC,
+};
+
+static uint sd_ifc_mux;
-#ifndef CONFIG_SDCARD
struct cpld_data {
u8 cpld_ver; /* cpld revision */
u8 pcba_ver; /* pcb revision number */
@@ -52,17 +59,14 @@
u8 por2; /* POR Options */
u8 por3; /* POR Options */
};
-#endif
int board_early_init_f(void)
{
ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
-#ifndef CONFIG_SDCARD
struct fsl_ifc *ifc = (void *)CONFIG_SYS_IFC_ADDR;
/* Clock configuration to access CPLD using IFC(GPCM) */
setbits_be32(&ifc->ifc_gcr, 1 << IFC_GCR_TBCTL_TRN_TIME_SHIFT);
-#endif
/*
* Reset PCIe slots via GPIO4
*/
@@ -74,7 +78,6 @@
int board_early_init_r(void)
{
-#ifndef CONFIG_SDCARD
const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
const u8 flash_esel = find_tlb_idx((void *)flashbase, 1);
@@ -98,7 +101,6 @@
CONFIG_SYS_FLASH_BASE_PHYS + 0x1000000,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, flash_esel+1, BOOKE_PAGESZ_16M, 1);
-#endif
return 0;
}
@@ -109,6 +111,38 @@
}
#endif /* ifdef CONFIG_PCI */
+int config_board_mux(int ctrl_type)
+{
+ ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+ u8 tmp;
+
+ switch (ctrl_type) {
+ case MUX_TYPE_IFC:
+ i2c_set_bus_num(I2C_PCA9557_BUS_NUM);
+ tmp = 0xf0;
+ i2c_write(I2C_PCA9557_ADDR1, 3, 1, &tmp, 1);
+ tmp = 0x01;
+ i2c_write(I2C_PCA9557_ADDR1, 1, 1, &tmp, 1);
+ sd_ifc_mux = MUX_TYPE_IFC;
+ clrbits_be32(&gur->pmuxcr, PMUXCR1_IFC_MASK);
+ break;
+ case MUX_TYPE_SDHC:
+ i2c_set_bus_num(I2C_PCA9557_BUS_NUM);
+ tmp = 0xf0;
+ i2c_write(I2C_PCA9557_ADDR1, 3, 1, &tmp, 1);
+ tmp = 0x05;
+ i2c_write(I2C_PCA9557_ADDR1, 1, 1, &tmp, 1);
+ sd_ifc_mux = MUX_TYPE_SDHC;
+ clrsetbits_be32(&gur->pmuxcr, PMUXCR1_SDHC_MASK,
+ PMUXCR1_SDHC_ENABLE);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
int checkboard(void)
{
struct cpu_type *cpu;
@@ -116,6 +150,11 @@
cpu = gd->arch.cpu;
printf("Board: %sRDB\n", cpu->name);
+#ifdef CONFIG_SDCARD
+ /* switch to IFC to read info from CPLD */
+ config_board_mux(MUX_TYPE_IFC);
+#endif
+
return 0;
}
@@ -211,6 +250,16 @@
}
}
+void fdt_del_ifc(void *blob)
+{
+ int nodeoff = 0;
+
+ while ((nodeoff = fdt_node_offset_by_compatible(blob, 0,
+ "fsl,ifc")) >= 0) {
+ fdt_del_node(blob, nodeoff);
+ }
+}
+
void fdt_disable_uart1(void *blob)
{
int nodeoff;
@@ -254,9 +303,13 @@
fdt_del_flexcan(blob);
fdt_del_node_and_alias(blob, "ethernet2");
}
-#ifndef CONFIG_SDCARD
- /* disable sdhc due to sdhc bug */
- fdt_del_sdhc(blob);
+
+ /* Delete IFC node as IFC pins are multiplexing with SDHC */
+ if (sd_ifc_mux != MUX_TYPE_IFC)
+ fdt_del_ifc(blob);
+ else
+ fdt_del_sdhc(blob);
+
if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "can")) {
fdt_del_tdm(blob);
fdt_del_spi_slic(blob);
@@ -274,11 +327,25 @@
fdt_del_flexcan(blob);
fdt_disable_uart1(blob);
}
+}
#endif
+
+#ifdef CONFIG_SDCARD
+int board_mmc_init(bd_t *bis)
+{
+ config_board_mux(MUX_TYPE_SDHC);
+ return -1;
+}
+#else
+void board_reset(void)
+{
+ /* mux to IFC to enable CPLD for reset */
+ if (sd_ifc_mux != MUX_TYPE_IFC)
+ config_board_mux(MUX_TYPE_IFC);
}
#endif
-#ifndef CONFIG_SDCARD
+
int misc_init_r(void)
{
struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
@@ -304,6 +371,30 @@
out_8(&cpld_data->spi_cs0_sel, MUX_CPLD_SPICS0_FLASH);
}
+ if (hwconfig("esdhc"))
+ config_board_mux(MUX_TYPE_SDHC);
+ else if (hwconfig("ifc"))
+ config_board_mux(MUX_TYPE_IFC);
+
return 0;
}
-#endif
+
+static int pin_mux_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ if (argc < 2)
+ return CMD_RET_USAGE;
+ if (strcmp(argv[1], "ifc") == 0)
+ config_board_mux(MUX_TYPE_IFC);
+ else if (strcmp(argv[1], "sdhc") == 0)
+ config_board_mux(MUX_TYPE_SDHC);
+ else
+ return CMD_RET_USAGE;
+ return 0;
+}
+
+U_BOOT_CMD(
+ mux, 2, 0, pin_mux_cmd,
+ "configure multiplexing pin for IFC/SDHC bus in runtime",
+ "bus_type (e.g. mux sdhc)"
+);
diff --git a/board/freescale/p1010rdb/tlb.c b/board/freescale/p1010rdb/tlb.c
index 77a8043..a7af0f6 100644
--- a/board/freescale/p1010rdb/tlb.c
+++ b/board/freescale/p1010rdb/tlb.c
@@ -42,7 +42,6 @@
0, 1, BOOKE_PAGESZ_1M, 1),
#ifndef CONFIG_SPL_BUILD
-#ifndef CONFIG_SDCARD
SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS,
MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
0, 2, BOOKE_PAGESZ_16M, 1),
@@ -51,7 +50,6 @@
CONFIG_SYS_FLASH_BASE_PHYS + 0x1000000,
MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
0, 3, BOOKE_PAGESZ_16M, 1),
-#endif
#ifdef CONFIG_PCI
/* *I*G* - PCI */
@@ -66,7 +64,6 @@
#endif
#endif
-#ifndef CONFIG_SDCARD
/* *I*G - Board CPLD */
SET_TLB_ENTRY(1, CONFIG_SYS_CPLD_BASE, CONFIG_SYS_CPLD_BASE_PHYS,
MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
@@ -75,7 +72,6 @@
SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 7, BOOKE_PAGESZ_1M, 1),
-#endif
#if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_SPL)
SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
diff --git a/include/configs/P1010RDB.h b/include/configs/P1010RDB.h
index c058613..032c078 100644
--- a/include/configs/P1010RDB.h
+++ b/include/configs/P1010RDB.h
@@ -152,10 +152,7 @@
#define CONFIG_DDR_CLK_FREQ 66666666 /* DDRCLK on P1010 RDB */
#define CONFIG_SYS_CLK_FREQ 66666666 /* SYSCLK for P1010 RDB */
-#ifndef CONFIG_SDCARD
#define CONFIG_MISC_INIT_R
-#endif
-
#define CONFIG_HWCONFIG
/*
* These can be toggled for performance analysis, otherwise use default.
@@ -256,10 +253,6 @@
* 0xffe0_0000 0xffef_ffff CCSR 1M non-cacheable
*/
-/* In case of SD card boot, IFC interface is not available because of muxing */
-#ifdef CONFIG_SDCARD
-#define CONFIG_SYS_NO_FLASH
-#else
/*
* IFC Definitions
*/
@@ -410,7 +403,6 @@
FTIM2_GPCM_TCH(0x0) | \
FTIM2_GPCM_TWP(0x1f))
#define CONFIG_SYS_CS3_FTIM3 0x0
-#endif /* CONFIG_SDCARD */
#if defined(CONFIG_RAMBOOT_SDCARD) || defined(CONFIG_RAMBOOT_SPIFLASH)
#define CONFIG_SYS_RAMBOOT
@@ -482,6 +474,8 @@
#define CONFIG_SYS_FSL_I2C2_SPEED 400000
#define CONFIG_SYS_FSL_I2C2_SLAVE 0x7F
#define CONFIG_SYS_FSL_I2C2_OFFSET 0x3100
+#define I2C_PCA9557_ADDR1 0x18
+#define I2C_PCA9557_BUS_NUM 0
/* I2C EEPROM */
#undef CONFIG_ID_EEPROM
@@ -567,12 +561,7 @@
#define CONFIG_LBA48
#endif /* #ifdef CONFIG_FSL_SATA */
-/* SD interface will only be available in case of SD boot */
-#ifdef CONFIG_SDCARD
#define CONFIG_MMC
-#define CONFIG_DEF_HWCONFIG esdhc
-#endif
-
#ifdef CONFIG_MMC
#define CONFIG_CMD_MMC
#define CONFIG_DOS_PARTITION