[U-Boot] [PATCH 3/3] misc:pmic:mx: Code modification for mx51evk board
Lukasz Majewski
l.majewski at samsung.com
Mon Sep 26 17:10:25 CEST 2011
This is an example code for adjusting the mx51evk example board to
new pmic_core driver.
Signed-off-by: Lukasz Majewski <l.majewski at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
Cc: Stefano Babic <sbabic at denx.de>
---
board/freescale/mx51evk/mx51evk.c | 68 +++++++++++++++++++++++++------------
1 files changed, 46 insertions(+), 22 deletions(-)
diff --git a/board/freescale/mx51evk/mx51evk.c b/board/freescale/mx51evk/mx51evk.c
index 94ea1f2..46562f0 100644
--- a/board/freescale/mx51evk/mx51evk.c
+++ b/board/freescale/mx51evk/mx51evk.c
@@ -34,6 +34,7 @@
#include <fsl_esdhc.h>
#include <fsl_pmic.h>
#include <mc13892.h>
+#include <pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -181,72 +182,94 @@ static void setup_iomux_spi(void)
static void power_init(void)
{
unsigned int val;
+ struct pmic *p = get_pmic();
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)MXC_CCM_BASE;
/* Write needed to Power Gate 2 register */
- val = pmic_reg_read(REG_POWER_MISC);
+ if (pmic_reg_read(p, REG_POWER_MISC, &val))
+ puts("PMIC write error!\n");
val &= ~PWGT2SPIEN;
- pmic_reg_write(REG_POWER_MISC, val);
+ if (pmic_reg_write(p, REG_POWER_MISC, &val))
+ puts("PMIC write error!\n");
/* Externally powered */
- val = pmic_reg_read(REG_CHARGE);
+ if (pmic_reg_read(p, REG_CHARGE, &val))
+ puts("PMIC write error!\n");
val |= ICHRG0 | ICHRG1 | ICHRG2 | ICHRG3 | CHGAUTOB;
- pmic_reg_write(REG_CHARGE, val);
+ if (pmic_reg_write(p, REG_CHARGE, &val))
+ puts("PMIC write error!\n");
/* power up the system first */
- pmic_reg_write(REG_POWER_MISC, PWUP);
+ val = PWUP;
+ if (pmic_reg_write(p, REG_POWER_MISC, &val))
+ puts("PMIC write error!\n");
/* Set core voltage to 1.1V */
- val = pmic_reg_read(REG_SW_0);
+ if (pmic_reg_read(p, REG_SW_0, &val))
+ puts("PMIC write error!\n");
val = (val & ~SWx_VOLT_MASK) | SWx_1_100V;
- pmic_reg_write(REG_SW_0, val);
+ if (pmic_reg_write(p, REG_SW_0, &val))
+ puts("PMIC write error!\n");
/* Setup VCC (SW2) to 1.25 */
- val = pmic_reg_read(REG_SW_1);
+ if (pmic_reg_read(p, REG_SW_1, &val))
+ puts("PMIC write error!\n");
val = (val & ~SWx_VOLT_MASK) | SWx_1_250V;
- pmic_reg_write(REG_SW_1, val);
+ if (pmic_reg_write(p, REG_SW_1, &val))
+ puts("PMIC write error!\n");
/* Setup 1V2_DIG1 (SW3) to 1.25 */
- val = pmic_reg_read(REG_SW_2);
+ if (pmic_reg_read(p, REG_SW_2, &val))
+ puts("PMIC write error!\n");
val = (val & ~SWx_VOLT_MASK) | SWx_1_250V;
- pmic_reg_write(REG_SW_2, val);
- udelay(50);
+ if (pmic_reg_write(p, REG_SW_2, &val))
+ puts("PMIC write error!\n");
/* Raise the core frequency to 800MHz */
writel(0x0, &mxc_ccm->cacrr);
/* Set switchers in Auto in NORMAL mode & STANDBY mode */
/* Setup the switcher mode for SW1 & SW2*/
- val = pmic_reg_read(REG_SW_4);
+ if (pmic_reg_read(p, REG_SW_4, &val))
+ puts("PMIC write error!\n");
val = (val & ~((SWMODE_MASK << SWMODE1_SHIFT) |
(SWMODE_MASK << SWMODE2_SHIFT)));
val |= (SWMODE_AUTO_AUTO << SWMODE1_SHIFT) |
(SWMODE_AUTO_AUTO << SWMODE2_SHIFT);
- pmic_reg_write(REG_SW_4, val);
+ if (pmic_reg_write(p, REG_SW_4, &val))
+ puts("PMIC write error!\n");
/* Setup the switcher mode for SW3 & SW4 */
- val = pmic_reg_read(REG_SW_5);
+ if (pmic_reg_read(p, REG_SW_5, &val))
+ puts("PMIC write error!\n");
val = (val & ~((SWMODE_MASK << SWMODE3_SHIFT) |
(SWMODE_MASK << SWMODE4_SHIFT)));
val |= (SWMODE_AUTO_AUTO << SWMODE3_SHIFT) |
(SWMODE_AUTO_AUTO << SWMODE4_SHIFT);
- pmic_reg_write(REG_SW_5, val);
+ if (pmic_reg_write(p, REG_SW_5, &val))
+ puts("PMIC write error!\n");
/* Set VDIG to 1.65V, VGEN3 to 1.8V, VCAM to 2.6V */
- val = pmic_reg_read(REG_SETTING_0);
+ if (pmic_reg_read(p, REG_SETTING_0, &val))
+ puts("PMIC write error!\n");
val &= ~(VCAM_MASK | VGEN3_MASK | VDIG_MASK);
val |= VDIG_1_65 | VGEN3_1_8 | VCAM_2_6;
- pmic_reg_write(REG_SETTING_0, val);
+ if (pmic_reg_write(p, REG_SETTING_0, &val))
+ puts("PMIC write error!\n");
/* Set VVIDEO to 2.775V, VAUDIO to 3V, VSD to 3.15V */
- val = pmic_reg_read(REG_SETTING_1);
+ if (pmic_reg_read(p, REG_SETTING_1, &val))
+ puts("PMIC write error!\n");
val &= ~(VVIDEO_MASK | VSD_MASK | VAUDIO_MASK);
val |= VSD_3_15 | VAUDIO_3_0 | VVIDEO_2_775;
- pmic_reg_write(REG_SETTING_1, val);
+ if (pmic_reg_write(p, REG_SETTING_1, &val))
+ puts("PMIC write error!\n");
/* Configure VGEN3 and VCAM regulators to use external PNP */
val = VGEN3CONFIG | VCAMCONFIG;
- pmic_reg_write(REG_MODE_1, val);
+ if (pmic_reg_write(p, REG_MODE_1, &val))
+ puts("PMIC write error!\n");
+
udelay(200);
gpio_direction_output(46, 0);
@@ -257,7 +280,8 @@ static void power_init(void)
/* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
val = VGEN3EN | VGEN3CONFIG | VCAMEN | VCAMCONFIG |
VVIDEOEN | VAUDIOEN | VSDEN;
- pmic_reg_write(REG_MODE_1, val);
+ if (pmic_reg_write(p, REG_MODE_1, &val))
+ puts("PMIC write error!\n");
udelay(500);
--
1.7.2.3
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