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rockchip: board: fdt fixup mmc strength as 2mA for rk1808 

Change-Id: I183e671a6a3ea753f163b2c3f534de85f584bd38
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
This commit is contained in:
Joseph Chen 2019-03-11 14:44:52 +08:00 committed by Jianhong Chen
parent e217fe3cbd
commit 28e9b49d47
1 changed files with 78 additions and 2 deletions
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80
arch/arm/mach-rockchip/board.c
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@ -282,22 +282,98 @@ int interrupt_debugger_init(void)
return ret;
}
#ifdef CONFIG_ROCKCHIP_RK1808
#define PINCTRL_EMMC_BUS8_PATH "/pinctrl/emmc/emmc-bus8"
#define PINCTRL_EMMC_CMD_PATH "/pinctrl/emmc/emmc-cmd"
#define PINCTRL_EMMC_CLK_PATH "/pinctrl/emmc/emmc-clk"
#define PINCTRL_PCFG_PU_2MA_PATH "/pinctrl/pcfg-pull-up-2ma"
#define MAX_ROCKCHIP_PINS_ENTRIES 12
static int rockchip_pinctrl_cfg_fdt_fixup(const char *path, u32 new_phandle)
{
u32 cells[MAX_ROCKCHIP_PINS_ENTRIES * 4];
const u32 *data;
int i, count;
int node;
node = fdt_path_offset(gd->fdt_blob, path);
if (node < 0) {
debug("%s: can't find: %s\n", __func__, path);
return node;
}
data = fdt_getprop(gd->fdt_blob, node, "rockchip,pins", &count);
if (!data) {
debug("%s: can't find prop \"rockchip,pins\"\n", __func__);
return -ENODATA;
}
count /= sizeof(u32);
if (count > MAX_ROCKCHIP_PINS_ENTRIES * 4) {
debug("%s: %d is over max count\n", __func__, count);
return -EINVAL;
}
for (i = 0; i < count; i++)
cells[i] = data[i];
for (i = 0; i < (count >> 2); i++)
cells[4 * i + 3] = cpu_to_fdt32(new_phandle);
fdt_setprop((void *)gd->fdt_blob, node, "rockchip,pins",
&cells, count * sizeof(u32));
return 0;
}
#endif
int board_fdt_fixup(void *blob)
{
__maybe_unused int ret = 0;
int ret = 0;
/*
* Common fixup for DRM
*/
#ifdef CONFIG_DRM_ROCKCHIP
rockchip_display_fixup(blob);
#endif
/*
* Platform fixup:
*
* - RK3288: Recognize RK3288W by HDMI Revision ID is 0x1A;
* - RK1808: MMC strength 2mA;
*/
#ifdef CONFIG_ROCKCHIP_RK3288
/* RK3288W HDMI Revision ID is 0x1A */
if (readl(0xff980004) == 0x1A) {
ret = fdt_setprop_string(blob, 0,
"compatible", "rockchip,rk3288w");
if (ret)
printf("fdt set compatible failed: %d\n", ret);
}
#elif CONFIG_ROCKCHIP_RK1808
struct tag *t;
u32 ph_pu_2ma;
t = atags_get_tag(ATAG_SOC_INFO);
if (!t)
return 0;
debug("soc=0x%x, flags=0x%x\n", t->u.soc.name, t->u.soc.flags);
if (t->u.soc.flags != SOC_FLAGS_ET00)
return 0;
ph_pu_2ma = fdt_get_phandle(gd->fdt_blob,
fdt_path_offset(gd->fdt_blob, PINCTRL_PCFG_PU_2MA_PATH));
if (!ph_pu_2ma) {
debug("Can't find: %s\n", PINCTRL_PCFG_PU_2MA_PATH);
return -EINVAL;
}
ret |= rockchip_pinctrl_cfg_fdt_fixup(PINCTRL_EMMC_BUS8_PATH, ph_pu_2ma);
ret |= rockchip_pinctrl_cfg_fdt_fixup(PINCTRL_EMMC_CMD_PATH, ph_pu_2ma);
ret |= rockchip_pinctrl_cfg_fdt_fixup(PINCTRL_EMMC_CLK_PATH, ph_pu_2ma);
#endif
return ret;