aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-ux500/board-mop500-sdi.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-ux500/board-mop500-sdi.c')
-rw-r--r--arch/arm/mach-ux500/board-mop500-sdi.c79
1 files changed, 74 insertions, 5 deletions
diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c
index bac995665b58..4b996676594e 100644
--- a/arch/arm/mach-ux500/board-mop500-sdi.c
+++ b/arch/arm/mach-ux500/board-mop500-sdi.c
@@ -16,10 +16,24 @@
16#include <mach/devices.h> 16#include <mach/devices.h>
17#include <mach/hardware.h> 17#include <mach/hardware.h>
18 18
19#include "devices-db8500.h"
19#include "pins-db8500.h" 20#include "pins-db8500.h"
20#include "board-mop500.h" 21#include "board-mop500.h"
21 22
22static pin_cfg_t mop500_sdi_pins[] = { 23static pin_cfg_t mop500_sdi_pins[] = {
24 /* SDI0 (MicroSD slot) */
25 GPIO18_MC0_CMDDIR,
26 GPIO19_MC0_DAT0DIR,
27 GPIO20_MC0_DAT2DIR,
28 GPIO21_MC0_DAT31DIR,
29 GPIO22_MC0_FBCLK,
30 GPIO23_MC0_CLK,
31 GPIO24_MC0_CMD,
32 GPIO25_MC0_DAT0,
33 GPIO26_MC0_DAT1,
34 GPIO27_MC0_DAT2,
35 GPIO28_MC0_DAT3,
36
23 /* SDI4 (on-board eMMC) */ 37 /* SDI4 (on-board eMMC) */
24 GPIO197_MC4_DAT3, 38 GPIO197_MC4_DAT3,
25 GPIO198_MC4_DAT2, 39 GPIO198_MC4_DAT2,
@@ -50,6 +64,55 @@ static pin_cfg_t mop500_sdi2_pins[] = {
50}; 64};
51 65
52/* 66/*
67 * SDI 0 (MicroSD slot)
68 */
69
70/* MMCIPOWER bits */
71#define MCI_DATA2DIREN (1 << 2)
72#define MCI_CMDDIREN (1 << 3)
73#define MCI_DATA0DIREN (1 << 4)
74#define MCI_DATA31DIREN (1 << 5)
75#define MCI_FBCLKEN (1 << 7)
76
77static u32 mop500_sdi0_vdd_handler(struct device *dev, unsigned int vdd,
78 unsigned char power_mode)
79{
80 if (power_mode == MMC_POWER_UP)
81 gpio_set_value_cansleep(GPIO_SDMMC_EN, 1);
82 else if (power_mode == MMC_POWER_OFF)
83 gpio_set_value_cansleep(GPIO_SDMMC_EN, 0);
84
85 return MCI_FBCLKEN | MCI_CMDDIREN | MCI_DATA0DIREN |
86 MCI_DATA2DIREN | MCI_DATA31DIREN;
87}
88
89static struct mmci_platform_data mop500_sdi0_data = {
90 .vdd_handler = mop500_sdi0_vdd_handler,
91 .ocr_mask = MMC_VDD_29_30,
92 .f_max = 100000000,
93 .capabilities = MMC_CAP_4_BIT_DATA,
94 .gpio_cd = GPIO_SDMMC_CD,
95 .gpio_wp = -1,
96};
97
98void mop500_sdi_tc35892_init(void)
99{
100 int ret;
101
102 ret = gpio_request(GPIO_SDMMC_EN, "SDMMC_EN");
103 if (!ret)
104 ret = gpio_request(GPIO_SDMMC_1V8_3V_SEL,
105 "GPIO_SDMMC_1V8_3V_SEL");
106 if (ret)
107 return;
108
109 gpio_direction_output(GPIO_SDMMC_1V8_3V_SEL, 1);
110 gpio_direction_output(GPIO_SDMMC_EN, 0);
111
112 db8500_add_sdi0(&mop500_sdi0_data);
113}
114
115/*
53 * SDI 2 (POP eMMC, not on DB8500ed) 116 * SDI 2 (POP eMMC, not on DB8500ed)
54 */ 117 */
55 118
@@ -74,18 +137,24 @@ static struct mmci_platform_data mop500_sdi4_data = {
74 .gpio_wp = -1, 137 .gpio_wp = -1,
75}; 138};
76 139
77void mop500_sdi_init(void) 140void __init mop500_sdi_init(void)
78{ 141{
79 nmk_config_pins(mop500_sdi_pins, ARRAY_SIZE(mop500_sdi_pins)); 142 nmk_config_pins(mop500_sdi_pins, ARRAY_SIZE(mop500_sdi_pins));
80 143
81 u8500_sdi2_device.dev.platform_data = &mop500_sdi2_data; 144 /*
82 u8500_sdi4_device.dev.platform_data = &mop500_sdi4_data; 145 * sdi0 will finally be added when the TC35892 initializes and calls
146 * mop500_sdi_tc35892_init() above.
147 */
83 148
149 /* PoP:ed eMMC */
84 if (!cpu_is_u8500ed()) { 150 if (!cpu_is_u8500ed()) {
85 nmk_config_pins(mop500_sdi2_pins, ARRAY_SIZE(mop500_sdi2_pins)); 151 nmk_config_pins(mop500_sdi2_pins, ARRAY_SIZE(mop500_sdi2_pins));
86 amba_device_register(&u8500_sdi2_device, &iomem_resource); 152 /* POP eMMC on v1.0 has problems with high speed */
153 if (!cpu_is_u8500v10())
154 mop500_sdi2_data.capabilities |= MMC_CAP_MMC_HIGHSPEED;
155 db8500_add_sdi2(&mop500_sdi2_data);
87 } 156 }
88 157
89 /* On-board eMMC */ 158 /* On-board eMMC */
90 amba_device_register(&u8500_sdi4_device, &iomem_resource); 159 db8500_add_sdi4(&mop500_sdi4_data);
91} 160}