public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
* [U-Boot] [PATCH] arm:goni:mmc: Add sd card detection and initialization.
@ 2013-09-09 12:50 Przemyslaw Marczak
  2013-09-10  2:30 ` Jaehoon Chung
  2013-09-10  9:34 ` [U-Boot] [PATCH v3] " Przemyslaw Marczak
  0 siblings, 2 replies; 5+ messages in thread
From: Przemyslaw Marczak @ 2013-09-09 12:50 UTC (permalink / raw)
  To: u-boot

This change allow to use sd card on Goni the same like mmc 0.
SD card is mmc dev 1, so it can be used like this: "fatls mmc 1:2".
SD card is inited even if eMMC initialization fails.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Minkyu Kang <mk7.kang@samsung.com>
---
 board/samsung/goni/goni.c |   33 +++++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/board/samsung/goni/goni.c b/board/samsung/goni/goni.c
index 5b3d6ef..d63e902 100644
--- a/board/samsung/goni/goni.c
+++ b/board/samsung/goni/goni.c
@@ -72,7 +72,7 @@ int checkboard(void)
 #ifdef CONFIG_GENERIC_MMC
 int board_mmc_init(bd_t *bis)
 {
-	int i;
+	int i, ret, ret_sd = 0;
 
 	/* MASSMEMORY_EN: XMSMDATA7: GPJ2[7] output high */
 	s5p_gpio_direction_output(&s5pc110_gpio->j2, 7, 1);
@@ -95,7 +95,36 @@ int board_mmc_init(bd_t *bis)
 		s5p_gpio_set_drv(&s5pc110_gpio->g0, i, GPIO_DRV_4X);
 	}
 
-	return s5p_mmc_init(0, 4);
+	ret = s5p_mmc_init(0, 4);
+	if (ret)
+		puts("MMC: Failed to init MMC:0.\n");
+
+	/*
+	 * SD card (T_FLASH) detect and init
+	 * T_FLASH_DETECT: EINT28: GPH3[4] input mode
+	 */
+	s5p_gpio_cfg_pin(&s5pc110_gpio->h3, 4, GPIO_INPUT);
+	s5p_gpio_set_pull(&s5pc110_gpio->h3, 4, GPIO_PULL_UP);
+
+	if (!s5p_gpio_get_value(&s5pc110_gpio->h3, 4)) {
+		for (i = 0; i < 7; i++) {
+			if (i == 2)
+				continue;
+
+			/* GPG2[0:6] special function 2 */
+			s5p_gpio_cfg_pin(&s5pc110_gpio->g2, i, 0x2);
+			/* GPG2[0:6] pull disable */
+			s5p_gpio_set_pull(&s5pc110_gpio->g2, i, GPIO_PULL_NONE);
+			/* GPG2[0:6] drv 4x */
+			s5p_gpio_set_drv(&s5pc110_gpio->g2, i, GPIO_DRV_4X);
+		}
+
+		ret_sd = s5p_mmc_init(2, 4)
+		if (ret_sd)
+			puts("MMC: Failed to init SD card (MMC:2).\n");
+	}
+
+	return ret | ret_sd;
 }
 #endif
 
-- 
1.7.9.5

^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2013-09-11  2:14 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-09-09 12:50 [U-Boot] [PATCH] arm:goni:mmc: Add sd card detection and initialization Przemyslaw Marczak
2013-09-10  2:30 ` Jaehoon Chung
2013-09-10  9:34 ` [U-Boot] [PATCH v3] " Przemyslaw Marczak
2013-09-10 10:28   ` Jaehoon Chung
2013-09-11  2:14     ` Minkyu Kang

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox