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-rw-r--r--arch/arm/mach-omap2/hsmmc.c103
1 files changed, 10 insertions, 93 deletions
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 2ef1f8714fcf..07d4c7b35754 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -29,7 +29,6 @@
29 29
30static u16 control_pbias_offset; 30static u16 control_pbias_offset;
31static u16 control_devconf1_offset; 31static u16 control_devconf1_offset;
32static u16 control_mmc1;
33 32
34#define HSMMC_NAME_LEN 9 33#define HSMMC_NAME_LEN 9
35 34
@@ -121,57 +120,6 @@ static void omap_hsmmc1_after_set_reg(struct device *dev, int slot,
121 } 120 }
122} 121}
123 122
124static void omap4_hsmmc1_before_set_reg(struct device *dev, int slot,
125 int power_on, int vdd)
126{
127 u32 reg;
128
129 /*
130 * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the
131 * card with Vcc regulator (from twl4030 or whatever). OMAP has both
132 * 1.8V and 3.0V modes, controlled by the PBIAS register.
133 */
134 reg = omap4_ctrl_pad_readl(control_pbias_offset);
135 reg &= ~(OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK |
136 OMAP4_MMC1_PWRDNZ_MASK |
137 OMAP4_MMC1_PBIASLITE_VMODE_MASK);
138 omap4_ctrl_pad_writel(reg, control_pbias_offset);
139}
140
141static void omap4_hsmmc1_after_set_reg(struct device *dev, int slot,
142 int power_on, int vdd)
143{
144 u32 reg;
145 unsigned long timeout;
146
147 if (power_on) {
148 reg = omap4_ctrl_pad_readl(control_pbias_offset);
149 reg |= OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK;
150 if ((1 << vdd) <= MMC_VDD_165_195)
151 reg &= ~OMAP4_MMC1_PBIASLITE_VMODE_MASK;
152 else
153 reg |= OMAP4_MMC1_PBIASLITE_VMODE_MASK;
154 reg |= (OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK |
155 OMAP4_MMC1_PWRDNZ_MASK);
156 omap4_ctrl_pad_writel(reg, control_pbias_offset);
157
158 timeout = jiffies + msecs_to_jiffies(5);
159 do {
160 reg = omap4_ctrl_pad_readl(control_pbias_offset);
161 if (!(reg & OMAP4_MMC1_PBIASLITE_VMODE_ERROR_MASK))
162 break;
163 usleep_range(100, 200);
164 } while (!time_after(jiffies, timeout));
165
166 if (reg & OMAP4_MMC1_PBIASLITE_VMODE_ERROR_MASK) {
167 pr_err("Pbias Voltage is not same as LDO\n");
168 /* Caution : On VMODE_ERROR Power Down MMC IO */
169 reg &= ~(OMAP4_MMC1_PWRDNZ_MASK);
170 omap4_ctrl_pad_writel(reg, control_pbias_offset);
171 }
172 }
173}
174
175static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc) 123static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc)
176{ 124{
177 u32 reg; 125 u32 reg;
@@ -317,11 +265,7 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
317 mmc->slots[0].pm_caps = c->pm_caps; 265 mmc->slots[0].pm_caps = c->pm_caps;
318 mmc->slots[0].internal_clock = !c->ext_clock; 266 mmc->slots[0].internal_clock = !c->ext_clock;
319 mmc->max_freq = c->max_freq; 267 mmc->max_freq = c->max_freq;
320 if (cpu_is_omap44xx()) 268 mmc->reg_offset = 0;
321 mmc->reg_offset = OMAP4_MMC_REG_OFFSET;
322 else
323 mmc->reg_offset = 0;
324
325 mmc->get_context_loss_count = hsmmc_get_context_loss; 269 mmc->get_context_loss_count = hsmmc_get_context_loss;
326 270
327 mmc->slots[0].switch_pin = c->gpio_cd; 271 mmc->slots[0].switch_pin = c->gpio_cd;
@@ -368,24 +312,14 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
368 if (!soc_is_am35xx()) 312 if (!soc_is_am35xx())
369 mmc->slots[0].features |= HSMMC_HAS_PBIAS; 313 mmc->slots[0].features |= HSMMC_HAS_PBIAS;
370 314
371 if (cpu_is_omap44xx() && (omap_rev() > OMAP4430_REV_ES1_0))
372 mmc->slots[0].features |= HSMMC_HAS_UPDATED_RESET;
373
374 switch (c->mmc) { 315 switch (c->mmc) {
375 case 1: 316 case 1:
376 if (mmc->slots[0].features & HSMMC_HAS_PBIAS) { 317 if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
377 /* on-chip level shifting via PBIAS0/PBIAS1 */ 318 /* on-chip level shifting via PBIAS0/PBIAS1 */
378 if (cpu_is_omap44xx()) { 319 mmc->slots[0].before_set_reg =
379 mmc->slots[0].before_set_reg = 320 omap_hsmmc1_before_set_reg;
380 omap4_hsmmc1_before_set_reg; 321 mmc->slots[0].after_set_reg =
381 mmc->slots[0].after_set_reg = 322 omap_hsmmc1_after_set_reg;
382 omap4_hsmmc1_after_set_reg;
383 } else {
384 mmc->slots[0].before_set_reg =
385 omap_hsmmc1_before_set_reg;
386 mmc->slots[0].after_set_reg =
387 omap_hsmmc1_after_set_reg;
388 }
389 } 323 }
390 324
391 if (soc_is_am35xx()) 325 if (soc_is_am35xx())
@@ -563,34 +497,17 @@ free_mmc:
563 497
564void __init omap_hsmmc_init(struct omap2_hsmmc_info *controllers) 498void __init omap_hsmmc_init(struct omap2_hsmmc_info *controllers)
565{ 499{
566 u32 reg;
567
568 if (omap_hsmmc_done) 500 if (omap_hsmmc_done)
569 return; 501 return;
570 502
571 omap_hsmmc_done = 1; 503 omap_hsmmc_done = 1;
572 504
573 if (!cpu_is_omap44xx()) { 505 if (cpu_is_omap2430()) {
574 if (cpu_is_omap2430()) { 506 control_pbias_offset = OMAP243X_CONTROL_PBIAS_LITE;
575 control_pbias_offset = OMAP243X_CONTROL_PBIAS_LITE; 507 control_devconf1_offset = OMAP243X_CONTROL_DEVCONF1;
576 control_devconf1_offset = OMAP243X_CONTROL_DEVCONF1;
577 } else {
578 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
579 control_devconf1_offset = OMAP343X_CONTROL_DEVCONF1;
580 }
581 } else { 508 } else {
582 control_pbias_offset = 509 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
583 OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_PBIASLITE; 510 control_devconf1_offset = OMAP343X_CONTROL_DEVCONF1;
584 control_mmc1 = OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_MMC1;
585 reg = omap4_ctrl_pad_readl(control_mmc1);
586 reg |= (OMAP4_SDMMC1_PUSTRENGTH_GRP0_MASK |
587 OMAP4_SDMMC1_PUSTRENGTH_GRP1_MASK);
588 reg &= ~(OMAP4_SDMMC1_PUSTRENGTH_GRP2_MASK |
589 OMAP4_SDMMC1_PUSTRENGTH_GRP3_MASK);
590 reg |= (OMAP4_SDMMC1_DR0_SPEEDCTRL_MASK |
591 OMAP4_SDMMC1_DR1_SPEEDCTRL_MASK |
592 OMAP4_SDMMC1_DR2_SPEEDCTRL_MASK);
593 omap4_ctrl_pad_writel(reg, control_mmc1);
594 } 511 }
595 512
596 for (; controllers->mmc; controllers++) 513 for (; controllers->mmc; controllers++)