MMC controller Reset is handled in hwmod framework and thus
remove MMC controller reset which is done seperately.
Cc: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
Cc: Benoit Cousson <b-cousson@xxxxxx>
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@xxxxxx>
---
arch/arm/mach-omap2/devices.c | 104 +----------------------------------------
1 files changed, 1 insertions(+), 103 deletions(-)
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 5b0e171..77b979b 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/clk.h>
@@ -503,108 +504,6 @@ static inline void omap_init_sham(void) { }
/*-------------------------------------------------------------------------*/
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
-
-#define MMCHS_SYSCONFIG 0x0010
-#define MMCHS_SYSCONFIG_SWRESET (1 << 1)
-#define MMCHS_SYSSTATUS 0x0014
-#define MMCHS_SYSSTATUS_RESETDONE (1 << 0)
-
-static struct platform_device dummy_pdev = {
- .dev = {
- .bus = &platform_bus_type,
- },
-};
-
-/**
- * omap_hsmmc_reset() - Full reset of each HS-MMC controller
- *
- * Ensure that each MMC controller is fully reset. Controllers
- * left in an unknown state (by bootloader) may prevent retention
- * or OFF-mode. This is especially important in cases where the
- * MMC driver is not enabled, _or_ built as a module.
- *
- * In order for reset to work, interface, functional and debounce
- * clocks must be enabled. The debounce clock comes from func_32k_clk
- * and is not under SW control, so we only enable i- and f-clocks.
- **/
-static void __init omap_hsmmc_reset(void)
-{
- u32 i, nr_controllers;
-
- if (cpu_is_omap242x())
- return;
-
- nr_controllers = cpu_is_omap44xx() ? OMAP44XX_NR_MMC :
- (cpu_is_omap34xx() ? OMAP34XX_NR_MMC : OMAP24XX_NR_MMC);
-
- for (i = 0; i < nr_controllers; i++) {
- u32 v, base = 0;
- struct clk *iclk, *fclk;
- struct device *dev = &dummy_pdev.dev;
-
- switch (i) {
- case 0:
- base = OMAP2_MMC1_BASE;
- break;
- case 1:
- base = OMAP2_MMC2_BASE;
- break;
- case 2:
- base = OMAP3_MMC3_BASE;
- break;
- case 3:
- if (!cpu_is_omap44xx())
- return;
- base = OMAP4_MMC4_BASE;
- break;
- case 4:
- if (!cpu_is_omap44xx())
- return;
- base = OMAP4_MMC5_BASE;
- break;
- }
-
- if (cpu_is_omap44xx())
- base += OMAP4_MMC_REG_OFFSET;
-
- dummy_pdev.id = i;
- dev_set_name(&dummy_pdev.dev, "mmci-omap-hs.%d", i);
- iclk = clk_get(dev, "ick");
- if (iclk && clk_enable(iclk))
- iclk = NULL;
-
- fclk = clk_get(dev, "fck");
- if (fclk && clk_enable(fclk))
- fclk = NULL;
-
- if (!iclk || !fclk) {
- printk(KERN_WARNING
- "%s: Unable to enable clocks for MMC%d, "
- "cannot reset.\n", __func__, i);
- break;
- }
-
- omap_writel(MMCHS_SYSCONFIG_SWRESET, base + MMCHS_SYSCONFIG);
- v = omap_readl(base + MMCHS_SYSSTATUS);
- while (!(omap_readl(base + MMCHS_SYSSTATUS) &
- MMCHS_SYSSTATUS_RESETDONE))
- cpu_relax();
-
- if (fclk) {
- clk_disable(fclk);
- clk_put(fclk);
- }
- if (iclk) {
- clk_disable(iclk);
- clk_put(iclk);
- }
- }
-}
-#else
-static inline void omap_hsmmc_reset(void) {}
-#endif
-
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
@@ -852,7 +751,6 @@ static int __init omap2_init_devices(void)
/* please keep these calls, and their implementations above,
* in alphabetical order so they're easier to sort through.
*/
- omap_hsmmc_reset();
omap_init_camera();
omap_init_mbox();
omap_init_mcspi();
--
1.7.0.4
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