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-rw-r--r--arch/arm/mach-msm/Makefile2
-rw-r--r--arch/arm/mach-msm/board-trout-mmc.c189
-rw-r--r--arch/arm/mach-msm/board-trout.c11
3 files changed, 201 insertions, 1 deletions
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index 7ff8020d4d24..704610648a25 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -15,7 +15,7 @@ obj-$(CONFIG_ARCH_QSD8X50) += sirc.o
15obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o 15obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o
16obj-$(CONFIG_MSM_SMD) += last_radio_log.o 16obj-$(CONFIG_MSM_SMD) += last_radio_log.o
17 17
18obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o devices-msm7x00.o 18obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o devices-msm7x00.o
19obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o devices-msm7x00.o 19obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o devices-msm7x00.o
20obj-$(CONFIG_ARCH_MSM7X30) += board-msm7x30.o devices-msm7x30.o 20obj-$(CONFIG_ARCH_MSM7X30) += board-msm7x30.o devices-msm7x30.o
21obj-$(CONFIG_ARCH_QSD8X50) += board-qsd8x50.o devices-qsd8x50.o 21obj-$(CONFIG_ARCH_QSD8X50) += board-qsd8x50.o devices-qsd8x50.o
diff --git a/arch/arm/mach-msm/board-trout-mmc.c b/arch/arm/mach-msm/board-trout-mmc.c
new file mode 100644
index 000000000000..7a773f8c13dc
--- /dev/null
+++ b/arch/arm/mach-msm/board-trout-mmc.c
@@ -0,0 +1,189 @@
1/* linux/arch/arm/mach-msm/board-trout-mmc.c
2** Author: Brian Swetland <swetland@google.com>
3*/
4
5#include <linux/kernel.h>
6#include <linux/init.h>
7#include <linux/platform_device.h>
8#include <linux/delay.h>
9#include <linux/mmc/host.h>
10#include <linux/mmc/sdio_ids.h>
11#include <linux/err.h>
12#include <linux/debugfs.h>
13
14#include <asm/gpio.h>
15#include <asm/io.h>
16
17#include <mach/vreg.h>
18
19#include <mach/mmc.h>
20
21#include "devices.h"
22
23#include "board-trout.h"
24
25#include "proc_comm.h"
26
27#define DEBUG_SDSLOT_VDD 1
28
29extern int msm_add_sdcc(unsigned int controller, struct mmc_platform_data *plat,
30 unsigned int stat_irq, unsigned long stat_irq_flags);
31
32/* ---- COMMON ---- */
33static void config_gpio_table(uint32_t *table, int len)
34{
35 int n;
36 unsigned id;
37 for(n = 0; n < len; n++) {
38 id = table[n];
39 msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &id, 0);
40 }
41}
42
43/* ---- SDCARD ---- */
44
45static uint32_t sdcard_on_gpio_table[] = {
46 PCOM_GPIO_CFG(62, 2, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA), /* CLK */
47 PCOM_GPIO_CFG(63, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* CMD */
48 PCOM_GPIO_CFG(64, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* DAT3 */
49 PCOM_GPIO_CFG(65, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* DAT2 */
50 PCOM_GPIO_CFG(66, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT1 */
51 PCOM_GPIO_CFG(67, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT0 */
52};
53
54static uint32_t sdcard_off_gpio_table[] = {
55 PCOM_GPIO_CFG(62, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CLK */
56 PCOM_GPIO_CFG(63, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CMD */
57 PCOM_GPIO_CFG(64, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT3 */
58 PCOM_GPIO_CFG(65, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT2 */
59 PCOM_GPIO_CFG(66, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT1 */
60 PCOM_GPIO_CFG(67, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT0 */
61};
62
63static uint opt_disable_sdcard;
64
65static int __init trout_disablesdcard_setup(char *str)
66{
67 int cal = simple_strtol(str, NULL, 0);
68
69 opt_disable_sdcard = cal;
70 return 1;
71}
72
73__setup("board_trout.disable_sdcard=", trout_disablesdcard_setup);
74
75static struct vreg *vreg_sdslot; /* SD slot power */
76
77struct mmc_vdd_xlat {
78 int mask;
79 int level;
80};
81
82static struct mmc_vdd_xlat mmc_vdd_table[] = {
83 { MMC_VDD_165_195, 1800 },
84 { MMC_VDD_20_21, 2050 },
85 { MMC_VDD_21_22, 2150 },
86 { MMC_VDD_22_23, 2250 },
87 { MMC_VDD_23_24, 2350 },
88 { MMC_VDD_24_25, 2450 },
89 { MMC_VDD_25_26, 2550 },
90 { MMC_VDD_26_27, 2650 },
91 { MMC_VDD_27_28, 2750 },
92 { MMC_VDD_28_29, 2850 },
93 { MMC_VDD_29_30, 2950 },
94};
95
96static unsigned int sdslot_vdd = 0xffffffff;
97static unsigned int sdslot_vreg_enabled;
98
99static uint32_t trout_sdslot_switchvdd(struct device *dev, unsigned int vdd)
100{
101 int i, rc;
102
103 BUG_ON(!vreg_sdslot);
104
105 if (vdd == sdslot_vdd)
106 return 0;
107
108 sdslot_vdd = vdd;
109
110 if (vdd == 0) {
111#if DEBUG_SDSLOT_VDD
112 printk("%s: Disabling SD slot power\n", __func__);
113#endif
114 config_gpio_table(sdcard_off_gpio_table,
115 ARRAY_SIZE(sdcard_off_gpio_table));
116 vreg_disable(vreg_sdslot);
117 sdslot_vreg_enabled = 0;
118 return 0;
119 }
120
121 if (!sdslot_vreg_enabled) {
122 rc = vreg_enable(vreg_sdslot);
123 if (rc) {
124 printk(KERN_ERR "%s: Error enabling vreg (%d)\n",
125 __func__, rc);
126 }
127 config_gpio_table(sdcard_on_gpio_table,
128 ARRAY_SIZE(sdcard_on_gpio_table));
129 sdslot_vreg_enabled = 1;
130 }
131
132 for (i = 0; i < ARRAY_SIZE(mmc_vdd_table); i++) {
133 if (mmc_vdd_table[i].mask == (1 << vdd)) {
134#if DEBUG_SDSLOT_VDD
135 printk("%s: Setting level to %u\n",
136 __func__, mmc_vdd_table[i].level);
137#endif
138 rc = vreg_set_level(vreg_sdslot,
139 mmc_vdd_table[i].level);
140 if (rc) {
141 printk(KERN_ERR
142 "%s: Error setting vreg level (%d)\n",
143 __func__, rc);
144 }
145 return 0;
146 }
147 }
148
149 printk(KERN_ERR "%s: Invalid VDD %d specified\n", __func__, vdd);
150 return 0;
151}
152
153static unsigned int trout_sdslot_status(struct device *dev)
154{
155 unsigned int status;
156
157 status = (unsigned int) gpio_get_value(TROUT_GPIO_SDMC_CD_N);
158 return (!status);
159}
160
161#define TROUT_MMC_VDD MMC_VDD_165_195 | MMC_VDD_20_21 | MMC_VDD_21_22 \
162 | MMC_VDD_22_23 | MMC_VDD_23_24 | MMC_VDD_24_25 \
163 | MMC_VDD_25_26 | MMC_VDD_26_27 | MMC_VDD_27_28 \
164 | MMC_VDD_28_29 | MMC_VDD_29_30
165
166static struct mmc_platform_data trout_sdslot_data = {
167 .ocr_mask = TROUT_MMC_VDD,
168 .status = trout_sdslot_status,
169 .translate_vdd = trout_sdslot_switchvdd,
170};
171
172int __init trout_init_mmc(unsigned int sys_rev)
173{
174 sdslot_vreg_enabled = 0;
175
176 vreg_sdslot = vreg_get(0, "gp6");
177 if (IS_ERR(vreg_sdslot))
178 return PTR_ERR(vreg_sdslot);
179
180 set_irq_wake(TROUT_GPIO_TO_INT(TROUT_GPIO_SDMC_CD_N), 1);
181
182 if (!opt_disable_sdcard)
183 msm_add_sdcc(2, &trout_sdslot_data,
184 TROUT_GPIO_TO_INT(TROUT_GPIO_SDMC_CD_N), 0);
185 else
186 printk(KERN_INFO "trout: SD-Card interface disabled\n");
187 return 0;
188}
189
diff --git a/arch/arm/mach-msm/board-trout.c b/arch/arm/mach-msm/board-trout.c
index dca5a5f062dc..8f1b28f514d2 100644
--- a/arch/arm/mach-msm/board-trout.c
+++ b/arch/arm/mach-msm/board-trout.c
@@ -30,6 +30,8 @@
30#include "devices.h" 30#include "devices.h"
31#include "board-trout.h" 31#include "board-trout.h"
32 32
33extern int trout_init_mmc(unsigned int);
34
33static struct platform_device *devices[] __initdata = { 35static struct platform_device *devices[] __initdata = {
34 &msm_device_uart3, 36 &msm_device_uart3,
35 &msm_device_smd, 37 &msm_device_smd,
@@ -56,7 +58,16 @@ static void __init trout_fixup(struct machine_desc *desc, struct tag *tags,
56 58
57static void __init trout_init(void) 59static void __init trout_init(void)
58{ 60{
61 int rc;
62
59 platform_add_devices(devices, ARRAY_SIZE(devices)); 63 platform_add_devices(devices, ARRAY_SIZE(devices));
64
65#ifdef CONFIG_MMC
66 rc = trout_init_mmc(system_rev);
67 if (rc)
68 printk(KERN_CRIT "%s: MMC init failure (%d)\n", __func__, rc);
69#endif
70
60} 71}
61 72
62static struct map_desc trout_io_desc[] __initdata = { 73static struct map_desc trout_io_desc[] __initdata = {
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-26 00:35:32 -0500