From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaehoon Chung Date: Tue, 10 Sep 2013 19:28:56 +0900 Subject: [U-Boot] [PATCH v3] arm:goni:mmc: Add sd card detection and initialization. In-Reply-To: <1378805689-25600-1-git-send-email-p.marczak@samsung.com> References: <1378731002-12335-1-git-send-email-p.marczak@samsung.com> <1378805689-25600-1-git-send-email-p.marczak@samsung.com> Message-ID: <522EF468.1070305@samsung.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Looks good to me. Acked-by: Jaehoon Chung On 09/10/2013 06:34 PM, Przemyslaw Marczak wrote: > 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 > Signed-off-by: Kyungmin Park > CC: Minkyu Kang > --- > Changes for v2: > - add ret_sd for sd card initialization errors > - return bit OR of ret and ret_sd values > > Changes for v3: > - change puts() to error() when prints error message > - chance BIT OR on ret and sd_ret to BIT AND > > Now return value is 0 if any card will init succeed and -1 if both fails. > > --- > 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..366f648 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) > + error("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) > + error("MMC: Failed to init SD card (MMC:2).\n"); > + } > + > + return ret & ret_sd; > } > #endif > >